port.h File Reference

#include <ctype.h>
#include <netdb.h>
#include <pwd.h>
#include <netinet/in.h>
#include <arpa/inet.h>

Include dependency graph for port.h:

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Macros
#define	PGINVALID_SOCKET   (-1)
#define	IS_DIR_SEP(ch)   ((ch) == '/')
#define	is_absolute_path(filename)
#define	ALL_CONNECTION_FAILURE_ERRNOS
#define	PG_BACKEND_VERSIONSTR   "postgres (PostgreSQL) " PG_VERSION "\n"
#define	EXE   ""
#define	DEVNULL   "/dev/null"
#define	USE_REPL_SNPRINTF   1
#define	vsnprintf   pg_vsnprintf
#define	snprintf   pg_snprintf
#define	vsprintf   pg_vsprintf
#define	sprintf   pg_sprintf
#define	vfprintf   pg_vfprintf
#define	fprintf   pg_fprintf
#define	vprintf   pg_vprintf
#define	printf(...)   pg_printf(__VA_ARGS__)
#define	strerror   pg_strerror
#define	strerror_r   pg_strerror_r
#define	PG_STRERROR_R_BUFLEN   256 /* Recommended buffer size for strerror_r */
#define	TIMEZONE_GLOBAL   timezone
#define	TZNAME_GLOBAL   tzname
#define	closesocket   close
#define	PG_IOLBF   _IOLBF
#define	pgoff_t   off_t
#define	RTLD_NOW   1
#define	RTLD_GLOBAL   0
#define	qsort(a, b, c, d)   pg_qsort(a,b,c,d)
#define	pg_backend_random   pg_strong_random

Typedefs
typedef int	pgsocket
typedef int(*	qsort_arg_comparator) (const void *a, const void *b, void *arg)
typedef void(*	pqsigfunc) (int signo)

Functions
bool	pg_set_noblock (pgsocket sock)
bool	pg_set_block (pgsocket sock)
bool	has_drive_prefix (const char *filename)
char *	first_dir_separator (const char *filename)
char *	last_dir_separator (const char *filename)
char *	first_path_var_separator (const char *pathlist)
void	join_path_components (char *ret_path, const char *head, const char *tail)
void	canonicalize_path (char *path)
void	make_native_path (char *path)
void	cleanup_path (char *path)
bool	path_contains_parent_reference (const char *path)
bool	path_is_relative_and_below_cwd (const char *path)
bool	path_is_prefix_of_path (const char *path1, const char *path2)
char *	make_absolute_path (const char *path)
const char *	get_progname (const char *argv0)
void	get_share_path (const char *my_exec_path, char *ret_path)
void	get_etc_path (const char *my_exec_path, char *ret_path)
void	get_include_path (const char *my_exec_path, char *ret_path)
void	get_pkginclude_path (const char *my_exec_path, char *ret_path)
void	get_includeserver_path (const char *my_exec_path, char *ret_path)
void	get_lib_path (const char *my_exec_path, char *ret_path)
void	get_pkglib_path (const char *my_exec_path, char *ret_path)
void	get_locale_path (const char *my_exec_path, char *ret_path)
void	get_doc_path (const char *my_exec_path, char *ret_path)
void	get_html_path (const char *my_exec_path, char *ret_path)
void	get_man_path (const char *my_exec_path, char *ret_path)
bool	get_home_path (char *ret_path)
void	get_parent_directory (char *path)
char **	pgfnames (const char *path)
void	pgfnames_cleanup (char **filenames)
void	set_pglocale_pgservice (const char *argv0, const char *app)
int	find_my_exec (const char *argv0, char *retpath)
int	find_other_exec (const char *argv0, const char *target, const char *versionstr, char *retpath)
char *	pipe_read_line (char *cmd, char *line, int maxsize)
void	pg_usleep (long microsec)
int	pg_strcasecmp (const char *s1, const char *s2)
int	pg_strncasecmp (const char *s1, const char *s2, size_t n)
unsigned char	pg_toupper (unsigned char ch)
unsigned char	pg_tolower (unsigned char ch)
unsigned char	pg_ascii_toupper (unsigned char ch)
unsigned char	pg_ascii_tolower (unsigned char ch)
int	pg_vsnprintf (char *str, size_t count, const char *fmt, va_list args)
int	pg_snprintf (char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
int int	pg_vsprintf (char *str, const char *fmt, va_list args)
int	pg_sprintf (char *str, const char *fmt,...) pg_attribute_printf(2
int int	pg_vfprintf (FILE *stream, const char *fmt, va_list args)
int	pg_fprintf (FILE *stream, const char *fmt,...) pg_attribute_printf(2
int int	pg_vprintf (const char *fmt, va_list args)
int	pg_printf (const char *fmt,...) pg_attribute_printf(1
int	pg_strfromd (char *str, size_t count, int precision, double value)
char *	pg_strerror (int errnum)
char *	pg_strerror_r (int errnum, char *buf, size_t buflen)
const char *	pg_strsignal (int signum)
int	pclose_check (FILE *stream)
bool	rmtree (const char *path, bool rmtopdir)
double	pg_erand48 (unsigned short xseed[3])
long	pg_lrand48 (void)
long	pg_jrand48 (unsigned short xseed[3])
void	pg_srand48 (long seed)
int	fls (int mask)
int	getpeereid (int sock, uid_t *uid, gid_t *gid)
void	explicit_bzero (void *buf, size_t len)
float	strtof (const char *nptr, char **endptr)
int	link (const char *src, const char *dst)
char *	mkdtemp (char *path)
int	inet_aton (const char *cp, struct in_addr *addr)
ssize_t	pg_pread (int fd, void *buf, size_t nbyte, off_t offset)
ssize_t	pg_pwrite (int fd, const void *buf, size_t nbyte, off_t offset)
size_t	strlcat (char *dst, const char *src, size_t siz)
size_t	strlcpy (char *dst, const char *src, size_t siz)
size_t	strnlen (const char *str, size_t maxlen)
long	random (void)
void	unsetenv (const char *name)
void	srandom (unsigned int seed)
void *	dlopen (const char *file, int mode)
void *	dlsym (void *handle, const char *symbol)
int	dlclose (void *handle)
char *	dlerror (void)
int	pqGetpwuid (uid_t uid, struct passwd *resultbuf, char *buffer, size_t buflen, struct passwd **result)
int	pqGethostbyname (const char *name, struct hostent *resultbuf, char *buffer, size_t buflen, struct hostent **result, int *herrno)
void	pg_qsort (void *base, size_t nel, size_t elsize, int(*cmp)(const void *, const void *))
int	pg_qsort_strcmp (const void *a, const void *b)
void	qsort_arg (void *base, size_t nel, size_t elsize, qsort_arg_comparator cmp, void *arg)
int	pg_get_encoding_from_locale (const char *ctype, bool write_message)
char *	pg_inet_net_ntop (int af, const void *src, int bits, char *dst, size_t size)
bool	pg_strong_random (void *buf, size_t len)
int	pg_check_dir (const char *dir)
int	pg_mkdir_p (char *path, int omode)
pqsigfunc	pqsignal (int signo, pqsigfunc func)
char *	escape_single_quotes_ascii (const char *src)
char *	wait_result_to_str (int exit_status)
bool	wait_result_is_signal (int exit_status, int signum)
bool	wait_result_is_any_signal (int exit_status, bool include_command_not_found)

Macro Definition Documentation

ALL_CONNECTION_FAILURE_ERRNOS

#define ALL_CONNECTION_FAILURE_ERRNOS

Value:

EPIPE: \
    case ECONNRESET: \
    case ECONNABORTED: \
    case EHOSTDOWN: \
    case EHOSTUNREACH: \
    case ENETDOWN: \
    case ENETRESET: \
    case ENETUNREACH

Definition at line 114 of file port.h.

Referenced by errcode_for_socket_access(), and pqReadData().

closesocket

#define closesocket   close

Definition at line 331 of file port.h.

Referenced by archive_close_connection(), ident_inet(), internal_cancel(), ParallelBackupEnd(), ParallelBackupStart(), PerformRadiusTransaction(), pgstat_init(), PostmasterMarkPIDForWorkerNotify(), pqDropConnection(), readMessageFromPipe(), run_ifaddr_callback(), ShutdownWorkersHard(), StreamClose(), and StreamServerPort().

DEVNULL

#define DEVNULL   "/dev/null"

Definition at line 146 of file port.h.

Referenced by do_init(), ensureCleanShutdown(), initialize_data_directory(), initializeInput(), regression_main(), start_postmaster(), SysLoggerMain(), and test_config_settings().

EXE

#define EXE   ""

Definition at line 140 of file port.h.

Referenced by find_other_exec(), and get_progname().

fprintf

#define fprintf   pg_fprintf

Definition at line 219 of file port.h.

Referenced by _dosmaperr(), _print_horizontal_line(), _ShowOption(), advice(), appendPsqlMetaConnect(), appendShellString(), apw_dump_now(), BaseBackup(), bootstrap_template1(), change_directory(), check_for_data_type_usage(), check_for_isn_and_int8_passing_mismatch(), check_for_jsonb_9_4_usage(), check_for_reg_data_type_usage(), check_for_tables_with_oids(), check_for_user_defined_postfix_ops(), check_input(), check_loadable_libraries(), check_locale_encoding(), check_prepare_conn(), check_system_link_file(), CheckConnection(), CheckForExternalTrigger(), close_file(), ClosePager(), colorcomplement(), convert_sourcefiles_in(), create_data_directory(), create_script_for_cluster_analyze(), create_script_for_old_cluster_deletion(), create_xlog_or_symlink(), CreateOptsFile(), createPartitions(), CustomizableCleanupPriorWALFiles(), CustomizableInitialize(), CustomizableNextWALFileReady(), defaultNoticeProcessor(), DescribeQuery(), do_field(), do_header(), do_pg_stop_backup(), dolink(), doLog(), dropDBs(), dropRoles(), dropTablespaces(), dsa_dump(), dshash_dump(), dumpDatabases(), dumpGroups(), dumpnfa(), dumpRoleMembership(), dumpRoles(), dumpTablespaces(), dumpTimestamp(), dumpUserConfig(), echo_hidden_command(), ecpg_filter(), ecpg_log(), ecpg_start_test(), ECPGdump_a_simple(), enlargeStringInfo(), evalStandardFunc(), exec_command_write(), exec_prog(), ExecuteSqlCommand(), exportFile(), file_line_count(), file_size(), func_call_1(), func_call_2(), get_id(), get_opts(), get_progname(), get_su_pwd(), get_user_name_or_exit(), getopt(), getopt_long(), gseg_internal_consistent(), gseg_leaf_consistent(), gseg_penalty(), gseg_picksplit(), gseg_same(), gseg_union(), handle_args(), hash_stats(), header(), helpSQL(), helpVariables(), identify_system_timezone(), importFile(), infile(), init_htab(), initCreateFKeys(), initCreatePKeys(), initCreateTables(), initDropTables(), initGenerateDataClientSide(), initGenerateDataServerSide(), initialize_environment(), initVacuum(), isolation_init(), isolation_start_test(), listAvailableScripts(), load_resultmap(), LocalBufferAlloc(), main(), make_absolute_path(), make_directory(), MarkLocalBufferDirty(), memory_exhausted(), MemoryContextStatsDetail(), MemoryContextStatsInternal(), MemoryContextStatsPrint(), my_truncate(), new_9_0_populate_pg_largeobject_metadata(), nfanode(), old_9_6_invalidate_hash_indexes(), open_result_files(), optimize(), output_deallocate_prepare_statement(), output_get_descr(), output_get_descr_header(), output_line_number(), output_prepare_statement(), output_row(), output_set_descr(), output_set_descr_header(), output_statement(), overwrite(), packArcInfoCmp(), parse_psql_options(), parseCommandLine(), passwordFromFile(), perform_spin_delay(), pg_attribute_printf(), pg_log_generic_v(), pg_log_v(), pg_malloc_internal(), pg_realloc(), pg_regcomp(), pg_strdup(), pgwin32_is_service(), pickout(), pipe_read_line(), pnstrdup(), PostmasterMain(), PQdefaultSSLKeyPassHook_OpenSSL(), PQdisplayTuples(), pqGetc(), pqGetInt(), pqGetnchar(), pqGets_internal(), PQprint(), PQprintTuples(), pqPutc(), pqPutInt(), pqPutMsgEnd(), pqPutMsgStart(), pqPutnchar(), pqPuts(), pqSaveParameterStatus(), pqSetenvPoll(), pqSkipnchar(), print(), print2(), print_action(), print_aligned_text(), print_aligned_vertical(), print_aligned_vertical_line(), print_asciidoc_text(), print_asciidoc_vertical(), print_html_text(), print_html_vertical(), print_latex_vertical(), print_troff_ms_vertical(), print_with_linenumbers(), printHistory(), PrintNotifications(), printProgressReport(), PrintQueryStatus(), printTable(), printTableAddCell(), printTableAddHeader(), progress_report(), psql_command(), psql_start_test(), PSQLexec(), PSQLexecWatch(), pvsnprintf(), regression_main(), report_error_message(), report_multiple_error_messages(), RestoreWALFileForRecovery(), results_differ(), rstacktoodeep(), rulesub(), run_diff(), run_named_permutations(), run_permutation(), run_schedule(), run_testspec(), runInitSteps(), s_lock_stuck(), scan_available_timezones(), score_timezone(), selectColorTrigrams(), SendQuery(), set_dump_section(), setup_data_file_paths(), setup_locale_encoding(), setup_pgdata(), SetWALFileNameForCleanup(), SetWALSegSize(), slashUsage(), slice_check(), spawn_process(), sql_check(), sql_exec(), sqlprint(), status_end(), stop_postmaster(), syntax_error(), test_pattern(), test_timing(), TParserClose(), TParserCopyClose(), TParserCopyInit(), TParserGet(), TParserInit(), try_complete_step(), update_metainfo_datafile(), usage(), vacuumlo(), verror(), wait_for_tests(), warn(), warn_on_mount_point(), warning(), whenever_action(), write_version_file(), writezone(), and XidCacheRemoveRunningXids().

is_absolute_path

#define is_absolute_path

(

filename

)

Value:

( \
    IS_DIR_SEP((filename)[0]) \
)

Definition at line 86 of file port.h.

Referenced by BeginCopyTo(), connectOptions2(), convert_and_check_filename(), create_xlog_or_symlink(), CreateTableSpace(), do_connect(), exec_command_conninfo(), find_in_dynamic_libpath(), find_my_exec(), get_extension_script_directory(), get_prompt(), main(), make_absolute_path(), passwordFromFile(), path_is_relative_and_below_cwd(), perform_base_backup(), process_file(), setup_bin_paths(), tablespace_list_append(), and tokenize_inc_file().

IS_DIR_SEP

#define IS_DIR_SEP

(

ch

)

((ch) == '/')

Definition at line 84 of file port.h.

Referenced by dir_strcmp(), do_pg_start_backup(), first_dir_separator(), join_path_components(), last_dir_separator(), make_relative_path(), path_is_prefix_of_path(), path_is_relative_and_below_cwd(), trim_directory(), and trim_trailing_separator().

pg_backend_random

#define pg_backend_random   pg_strong_random

Definition at line 522 of file port.h.

PG_BACKEND_VERSIONSTR

#define PG_BACKEND_VERSIONSTR   "postgres (PostgreSQL) " PG_VERSION "\n"

Definition at line 134 of file port.h.

Referenced by adjust_data_dir(), do_kill(), do_start(), ensureCleanShutdown(), getInstallationPaths(), getRestoreCommand(), main(), and setup_bin_paths().

PG_IOLBF

#define PG_IOLBF   _IOLBF

Definition at line 343 of file port.h.

Referenced by logfile_open(), main(), SysLogger_Start(), and update_metainfo_datafile().

PG_STRERROR_R_BUFLEN

#define PG_STRERROR_R_BUFLEN   256 /* Recommended buffer size for strerror_r */

Definition at line 233 of file port.h.

Referenced by connectFailureMessage(), connectNoDelay(), dopr(), initialize_SSL(), internal_cancel(), lo_export(), lo_import_internal(), open_client_SSL(), pg_local_sendauth(), pg_strerror(), pgtls_read(), pgtls_write(), PQconnectPoll(), pqsecure_raw_read(), pqsecure_raw_write(), pqSocketCheck(), setKeepalivesCount(), setKeepalivesIdle(), and setKeepalivesInterval().

PGINVALID_SOCKET

#define PGINVALID_SOCKET   (-1)

Definition at line 33 of file port.h.

Referenced by AddWaitEventToSet(), ClosePostmasterPorts(), CloseServerPorts(), ConnCreate(), copy_read_data(), CopyStreamPoll(), ident_inet(), InitializeLatchWaitSet(), initMasks(), internal_cancel(), LogicalRepApplyLoop(), LogStreamerMain(), makeEmptyPGconn(), ModifyWaitEvent(), PerformRadiusTransaction(), pgstat_drop_database(), pgstat_init(), pgstat_initstats(), pgstat_ping(), pgstat_report_analyze(), pgstat_report_autovac(), pgstat_report_checksum_failures_in_db(), pgstat_report_deadlock(), pgstat_report_recovery_conflict(), pgstat_report_tempfile(), pgstat_report_vacuum(), pgstat_reset_counters(), pgstat_reset_replslot_counter(), pgstat_reset_shared_counters(), pgstat_reset_single_counter(), pgstat_reset_slru_counter(), pgstat_send(), pgstat_send_tabstat(), pgstat_start(), pgstat_vacuum_stat(), PgstatCollectorMain(), PostmasterMain(), PostmasterMarkPIDForWorkerNotify(), PQconnectPoll(), pqDropConnection(), PQfn(), PQgetCancel(), pqGetline2(), pqGetline3(), pqReadData(), PQrequestCancel(), pqSendSome(), PQsocket(), pqSocketCheck(), readMessageFromPipe(), run_ifaddr_callback(), sendTerminateConn(), ServerLoop(), socket_close(), StreamConnection(), StreamLog(), StreamServerPort(), SysLoggerMain(), WaitEventSetWait(), WaitLatchOrSocket(), and WalReceiverMain().

pgoff_t

#define pgoff_t   off_t

Definition at line 355 of file port.h.

printf

#define printf

(

...

)

pg_printf(__VA_ARGS__)

Definition at line 221 of file port.h.

Referenced by aes_cbc_decrypt(), array_in(), bootstrap_template1(), callback(), cash_in(), check_constant_qual(), check_errno(), check_ok(), check_result_of_insert(), check_return(), CleanupPriorWALFiles(), cluster_all_databases(), connection_warnings(), connectToServer(), create_data_directory(), create_xlog_or_symlink(), date_test_defmt(), date_test_fmt(), date_test_strdate(), debugStartup(), debugtup(), describe_char(), do_connect(), do_help(), do_status(), dosqlprint(), DoubleMetaphone(), dump_assert(), dump_assign(), dump_binary(), dump_block(), dump_call(), dump_case(), dump_close(), dump_commit(), dump_cursor_direction(), dump_dynexecute(), dump_dynfors(), dump_execsql(), dump_exit(), dump_expr(), dump_fetch(), dump_forc(), dump_foreach_a(), dump_fori(), dump_fors(), dump_getdiag(), dump_if(), dump_ind(), dump_loop(), dump_open(), dump_perform(), dump_raise(), dump_return(), dump_return_next(), dump_return_query(), dump_rollback(), dump_set(), dump_sqlda(), dump_stmt(), dump_while(), echo_hidden_command(), ecpg_process_output(), error(), exec_command_conninfo(), exec_command_pset(), exec_command_s(), ExecHashIncreaseNumBatches(), ExecHashIncreaseNumBuckets(), ExecHashTableCreate(), executeCommand(), executeMaintenanceCommand(), executeQuery(), executeQueryOrDie(), fa(), fb(), fc(), fd(), fe(), fmtlong(), func_call_1(), func_call_2(), generate_partitionwise_join_paths(), get_su_pwd(), handle_args(), handle_help_version_opts(), help(), initialize_data_directory(), initialize_environment(), int2int4_sum(), InteractiveBackend(), isotesterNoticeProcessor(), len_utf8(), main(), MainLoop(), output(), pg_fatal(), pg_log_v(), plpgsql_dumptree(), PostgresMain(), pprint(), preprocess_expression(), print(), print_addr(), print_double(), print_elapse(), print_expr(), print_pathkeys(), print_rmgr_list(), print_rt(), print_slot(), print_tl(), printatt(), PrintControlValues(), printGSSInfo(), printMixedStruct(), PrintNewControlValues(), printPsetInfo(), printResults(), printResultSet(), printSimpleStats(), printSSLInfo(), PrintTiming(), PrintVariables(), PSQLexec(), regression_main(), reindex_all_databases(), run_permutation(), run_reindex_command(), run_schedule(), run_single_test(), run_vacuum_command(), SendQuery(), setup_locale_encoding(), setup_text_search(), show_binary_results(), show_item(), sql_check(), sqlnotice(), test(), test_config_settings(), test_file_descriptor_sync(), test_non_sync(), test_null(), test_open_sync(), test_open_syncs(), test_sync(), test_timing(), TopoSort(), try_complete_step(), update_spins_per_delay(), usage(), vacuum_one_database(), XLogDumpDisplayRecord(), XLogDumpDisplayStats(), XLogDumpStatsRow(), and yesno_prompt().

qsort

#define qsort	(		a,
			b,
			c,
			d
	)		pg_qsort(a,b,c,d)

Definition at line 497 of file port.h.

Referenced by _bt_deltasortsplits(), _ltree_picksplit(), aclitemsort(), aclmembers(), acquire_sample_rows(), add_guc_variable(), AddEnumLabel(), AlterSubscription_refresh(), array_to_tsvector(), associate(), BufferSync(), build_guc_variables(), buildIndexArray(), calc_word_similarity(), carcsort(), check_loadable_libraries(), checkcondition_str(), CheckConstraintFetch(), checkSharedDependencies(), choose_bitmap_and(), compileTheLexeme(), compute_array_stats(), compute_range_stats(), compute_scalar_stats(), compute_tsvector_stats(), create_hash_bounds(), CreateStatistics(), dsynonym_init(), eliminate_duplicate_dependencies(), entry_dealloc(), EnumValuesCreate(), ExecInitInterpreter(), filemap_finalize(), fill_in_constant_lengths(), find_inheritance_children(), findDependentObjects(), findObjectByCatalogId(), g_int_picksplit(), g_intbig_picksplit(), generate_trgm(), generate_wildcard_trgm(), get_docrep(), ghstore_picksplit(), ginGetBAEntry(), gist_box_picksplit(), gseg_picksplit(), gtrgm_picksplit(), gtsquery_picksplit(), gtsvector_compress(), gtsvector_picksplit(), heap_compute_xid_horizon_for_tuples(), heap_force_common(), hstoreUniquePairs(), IssuePendingWritebacks(), list_sort(), load_domaintype_info(), load_enum_cache_data(), lookupVariable(), ltree_picksplit(), main(), mcelem_array_contained_selec(), mergeins(), mXactCacheGetBySet(), mXactCachePut(), NIImportOOAffixes(), NISortAffixes(), NISortDictionary(), packGraph(), pg_import_system_collations(), ProcArrayApplyRecoveryInfo(), process_target_file(), QTNSort(), range_gist_double_sorting_split(), rankSort(), read_dictionary(), readstoplist(), ready_list_sort(), rebuild_database_list(), ReorderBufferCopySnap(), select_active_windows(), selectColorTrigrams(), SerializeTransactionState(), setExtensionMembership(), setup_pct_info(), SnapBuildBuildSnapshot(), sort_object_addresses(), sort_pool(), sort_snapshot(), sortDumpableObjectsByTypeName(), sortins(), sortouts(), spg_box_quad_picksplit(), spg_kd_picksplit(), spg_quad_picksplit(), spg_text_picksplit(), spgPageIndexMultiDelete(), SyncRepGetCandidateStandbys(), SyncRepGetNthLatestSyncRecPtr(), tbm_begin_iterate(), TidListEval(), tsq_mcontains(), tsvector_delete_by_indices(), uniquePos(), uniqueWORD(), WriteDataChunks(), and writezone().

RTLD_GLOBAL

#define RTLD_GLOBAL   0

Definition at line 478 of file port.h.

Referenced by internal_load_library().

RTLD_NOW

#define RTLD_NOW   1

Definition at line 470 of file port.h.

Referenced by internal_load_library().

snprintf

#define snprintf   pg_snprintf

Definition at line 215 of file port.h.

Referenced by _ArchiveEntry(), _discoverArchiveFormat(), _EndBlob(), _LoadBlobs(), _PG_init(), _ShowOption(), _StartBlob(), _tarAddFile(), _tarGetHeader(), _tarPositionTo(), AddFileToBackupManifest(), addRangeTableEntryForValues(), AddToDataDirLockFile(), adjust_data_dir(), AllocSetStats(), AlterObjectOwner_internal(), AlterSystemSetConfigFile(), anybit_typmodout(), anychar_typmodout(), ApplyLauncherRegister(), ApplyWorkerMain(), apw_dump_now(), autovac_report_activity(), autovac_report_workitem(), BackendRun(), BackgroundWorkerUnblockSignals(), BaseBackup(), begin_remote_xact(), bootstrap_template1(), build_pgstattuple_type(), buildWorkerCommand(), buildWorkerResponse(), calculate_database_size(), calculate_relation_size(), calculate_tablespace_size(), cfopen(), changes_filename(), check_file_clone(), check_file_excluded(), check_for_isn_and_int8_passing_mismatch(), check_for_jsonb_9_4_usage(), check_for_new_tablespace_dir(), check_for_reg_data_type_usage(), check_for_tables_with_oids(), check_for_user_defined_postfix_ops(), check_foreign_key(), check_hard_link(), check_loadable_libraries(), check_log_duration(), check_primary_key(), check_single_dir(), checkControlFile(), CheckPointLogicalRewriteHeap(), CheckPointSnapBuild(), CheckSCRAMAuth(), choose_dsm_implementation(), ChooseConstraintName(), ChooseExtendedStatisticName(), ChooseRelationName(), cidout(), cleanup(), CleanupBackgroundWorker(), CleanupBackupHistory(), CleanupPriorWALFiles(), close_cursor(), compile_pltcl_function(), ComputePartitionAttrs(), connectOptions2(), convert_sourcefiles_in(), convertTSFunction(), copy_subdir_files(), copydir(), CopyFromErrorCallback(), crashDumpHandler(), create_new_objects(), create_target_dir(), create_target_symlink(), create_toast_table(), createBackupLabel(), CreateLockFile(), CreateReplicationSlot(), CreateSocketLockFile(), CreateSubscription(), CreateTrigger(), CustomizableCleanupPriorWALFiles(), CustomizableInitialize(), db_dir_size(), DeleteAllExportedSnapshotFiles(), describeDumpableObject(), dir_close(), dir_existsfile(), dir_get_file_size(), dir_open_for_write(), disable_old_cluster(), do_compile(), do_edit(), do_init(), do_kill(), do_lo_list(), do_logrotate(), do_pg_start_backup(), do_promote(), do_setval(), do_start(), do_watch(), DropSubscription(), dsm_cleanup_for_mmap(), dsm_impl_mmap(), dsm_impl_op(), dsm_impl_pin_segment(), dsm_impl_sysv(), dsm_impl_unpin_segment(), dumpSequence(), ean2isn(), ean2string(), ecpg_build_params(), ecpg_log(), ecpg_raise(), ecpg_raise_backend(), ecpg_start_test(), ECPGget_desc(), ECPGset_desc(), ECPGset_var(), EndCommand(), ensureCleanShutdown(), exec_prog(), ExecBuildAuxRowMark(), ExecGrant_Largeobject(), ExecParallelHashJoinSetUpBatches(), ExecQueryUsingCursor(), expand_inherited_rtentry(), ExplainPropertyInteger(), ExplainPropertyUInteger(), ExportSnapshot(), fetch_file_range(), fetch_more_data(), find_other_exec(), FindStreamingStart(), finish_foreign_modify(), finish_heap_swap(), float4_numeric(), float8_numeric(), footers_with_default(), format_operator_extended(), format_procedure_extended(), formatPGVersionNumber(), generate_old_dump(), GenerationStats(), get_alternative_expectfile(), get_bin_version(), get_config_unit_name(), get_control_data(), get_controlfile(), get_db_infos(), get_dbstat_filename(), get_errno_symbol(), get_extension_aux_control_filename(), get_extension_control_directory(), get_extension_control_filename(), get_extension_script_directory(), get_extension_script_filename(), get_home_path(), get_major_server_version(), get_prompt(), get_rel_infos(), get_sock_dir(), get_str_from_var_sci(), get_tablespace_paths(), get_tsearch_config_filename(), GetConfigOption(), GetConfigOptionByNum(), GetConfigOptionResetString(), getnameinfo(), getRestoreCommand(), getVariable(), heap_xlog_logical_rewrite(), ident_inet(), identify_system_timezone(), identify_target_directory(), IdentifySystem(), ImportSnapshot(), incompatible_module_error(), init_params(), init_ps_display(), initialize_data_directory(), initialize_environment(), initialize_SSL(), InitTempTableNamespace(), int44out(), int_to_roman(), intervaltypmodout(), isolation_start_test(), join_path_components(), jsonb_agg_transfn(), jsonb_object_agg_transfn(), KeepFileRestoredFromArchive(), KillExistingArchiveStatus(), KillExistingXLOG(), LaunchParallelWorkers(), libpqrcv_readtimelinehistoryfile(), llvm_create_types(), load_module(), load_relcache_init_file(), load_relmap_file(), load_resultmap(), log_line_prefix(), logfile_getname(), logical_rewrite_log_mapping(), logicalrep_worker_launch(), macaddr8_out(), macaddr_out(), main(), make_new_heap(), make_text_key(), mark_file_as_archived(), nameconcatoid(), network_out(), network_show(), new_9_0_populate_pg_largeobject_metadata(), nextval_internal(), nfalsepos_for_missing_strings(), numerictypmodout(), oidout(), old_11_check_for_sql_identifier_data_type_usage(), old_9_3_check_for_line_data_type_usage(), old_9_6_check_for_unknown_data_type_usage(), open_file_in_directory(), open_result_files(), open_target_file(), open_walfile(), OpenTemporaryFileInTablespace(), page_header(), parseServiceInfo(), ParseTzFile(), perform_base_backup(), pg_getnameinfo_all(), pg_GSS_load_servicename(), pg_lock_status(), pg_ls_dir_files(), pg_lsn_mi(), pg_lsn_mii(), pg_lsn_out(), pg_lsn_pli(), pg_perm_setlocale(), pg_rusage_show(), pg_signal_thread(), pg_size_pretty(), pg_stat_statements_internal(), pg_strerror_r(), pg_tablespace_location(), pg_tzenumerate_next(), pg_tzset_offset(), pgarch_ArchiverCopyLoop(), pgarch_archiveXlog(), pgarch_readyXlog(), pgfdw_subxact_callback(), pgrowlocks(), pgstat_reset_remove_files(), pgtypes_fmt_replace(), PGTYPESdate_fmt_asc(), pgwin32_create_signal_listener(), pid_lock_file_exists(), plperl_spi_prepare(), plpgsql_param_ref(), pltcl_init_interp(), pltcl_SPI_prepare(), PLy_procedure_compile(), PLy_procedure_create(), PLy_procedure_munge_source(), populate_with_dummy_strings(), postgresAcquireSampleRowsFunc(), postgresReScanForeignScan(), PostmasterMain(), PQconnectPoll(), pqGetHomeDirectory(), PQsslAttribute(), prepare_foreign_modify(), preprocess_targetlist(), pretty_wal_size(), printProgressReport(), PrintQueryStatus(), proc_exit(), process_psqlrc(), process_source_file(), progress_report(), provider_init(), psql_command(), psql_start_test(), read_client_final_message(), ReadControlFile(), ReceiveBackupManifest(), ReceiveTarAndUnpackCopyChunk(), ReceiveTarFile(), ReceiveXlogStream(), recurse_dir(), regclassout(), regcollationout(), regconfigout(), regdictionaryout(), regnamespaceout(), regoperout(), regprocout(), regression_main(), regroleout(), regtypeout(), RelationCacheInitFilePreInvalidate(), RelationCacheInitFileRemove(), RelationCacheInitFileRemoveInDir(), ReleaseExternalFD(), remove_new_subdir(), remove_target_dir(), remove_target_file(), remove_target_symlink(), RemoveAttributeById(), RemovePgTempFiles(), RemovePgTempFilesInDir(), RemovePgTempRelationFiles(), RemovePgTempRelationFilesInDbspace(), RemoveTempXlogFiles(), RemoveXlogFile(), ReorderBufferCleanupSerializedTXNs(), ReorderBufferSerializedPath(), replace_variables(), report_fork_failure_to_client(), report_unmatched_relation(), ResetUnloggedRelations(), ResetUnloggedRelationsInDbspaceDir(), ResetUnloggedRelationsInTablespaceDir(), RestoreArchive(), RestoreArchivedFile(), results_differ(), rewind_copy_file_range(), RI_Initial_Check(), RI_PartitionRemove_Check(), rmtree(), sanitize_char(), scan_available_timezones(), scan_directory(), select_default_timezone(), send_message_to_frontend(), SendBaseBackup(), sendDir(), sendTablespace(), SendXlogRecPtrResult(), set_info_version(), set_pglocale_pgservice(), setup_background_workers(), setup_config(), SharedFilePath(), SharedFileSetPath(), SharedSegmentName(), show_data_directory_mode(), show_eval_params(), show_log_file_mode(), show_tcp_keepalives_count(), show_tcp_keepalives_idle(), show_tcp_keepalives_interval(), show_tcp_user_timeout(), show_trgm(), show_unix_socket_permissions(), SimpleXLogPageRead(), SlabStats(), SlruDeleteSegment(), SlruInternalDeleteSegment(), slurpFile(), sql_exec_dumpalldbs(), sql_exec_dumpalltables(), sql_exec_dumpalltbspc(), SSLerrmessage(), start_postmaster(), StartChildProcess(), StartLogStreamer(), StartReplication(), StartupReplicationSlots(), StartupXLOG(), stop_postmaster(), StreamServerPort(), sts_filename(), subxact_filename(), SyncVariables(), SysLogger_Start(), tar_open_for_write(), TempTablespacePath(), test_config_settings(), threadRun(), tidout(), timeofday(), timestamptz_to_str(), transfer_relfile(), transformRowExpr(), transformSetOperationTree(), truncate_target_file(), try_complete_step(), update_controlfile(), uuid_generate_internal(), uuid_generate_v1mc(), vacuumlo(), validate_exec(), ValidatePgVersion(), ValidateXLOGDirectoryStructure(), VXIDGetDatum(), wait_result_to_str(), walkdir(), WALOpenSegmentInit(), WalRcvWaitForStartPosition(), WalReceiverMain(), worker_spi_launch(), write_relcache_init_file(), write_relmap_file(), WriteRecoveryConfig(), writeTimeLineHistory(), writeTimeLineHistoryFile(), xid8out(), xidout(), XLogArchiveIsBusy(), XLogFileCopy(), XLogFileInit(), XLogFileRead(), XLogSendPhysical(), XLOGShmemSize(), XLogWalRcvFlush(), and yesno_prompt().

sprintf

#define sprintf   pg_sprintf

Definition at line 217 of file port.h.

Referenced by _ArchiveEntry(), _conv(), _PG_init(), _StartBlob(), _StartBlobs(), aclitemout(), AddISO8601IntPart(), AddPostgresIntPart(), AddVerboseIntPart(), AppendSeconds(), ApplyLogicalMappingFile(), array_dims(), array_out(), assign_pgstat_temp_directory(), BackendRun(), bootstrap_template1(), bt_page_print_tuples(), build_subplan(), build_tuplestore_recursively(), CheckPointReplicationSlots(), ChooseIndexColumnNames(), CreateFakeRelcacheEntry(), CreateNewPortal(), CreateSlotOnDisk(), CreateWalTarMethod(), DCH_to_char(), deallocate_one(), deparse_lquery(), do_kill(), do_lo_import(), doabbr(), ecpg_auto_prepare(), ecpg_build_native_sqlda(), ecpg_build_params(), ecpg_is_type_an_array(), ecpg_store_input(), ECPGdump_a_simple(), ECPGdump_a_struct(), EncodeDateOnly(), EncodeDateTime(), EncodeInterval(), encodingid_to_string(), find_in_dynamic_libpath(), fmtfloat(), fmtptr(), generate_normalized_query(), get_comma_elts(), get_str_from_var(), getNextFlagFromString(), gtsvectorout(), hashline_number(), infix(), initialize_environment(), initialize_worker_spi(), InitializeGUCOptionsFromEnvironment(), InternalIpcMemoryCreate(), LaunchParallelWorkers(), main(), make_absolute_path(), make_colname_unique(), mdunlinkfork(), MergeAffix(), NIAddAffix(), NUM_processor(), num_word(), oidvectorout(), optionListToArray(), parseQuery(), pg_get_userbyid(), pg_regerror(), pg_strfromd(), pg_wcsformat(), PGTYPESnumeric_from_double(), pgwin32_unsetenv(), plperl_create_sub(), pqInternalNotice(), PQprintTuples(), PQsetClientEncoding(), pqSetenvPoll(), preparedStatementName(), print_double(), print_wchar_str(), prs_process_call(), ReceiveXlogStream(), regoperout(), regression_main(), ReorderBufferCleanupSerializedTXNs(), ReplicationSlotDropPtr(), ReplicationSlotSave(), report_invalid_encoding(), report_untranslatable_char(), restore(), RestoreSlotFromDisk(), ri_Check_Pk_Match(), RI_FKey_cascade_del(), RI_FKey_cascade_upd(), RI_FKey_check(), ri_restrict(), ri_set(), rstacktoodeep(), SaveSlotToPath(), scram_build_secret(), seg_out(), SelectConfigFiles(), send_int8_string(), set_debug_options(), set_ps_display(), set_rtable_names(), SetOutput(), setup_background_workers(), setup_config(), setup_formatted_log_time(), SnapBuildRestore(), SnapBuildSerialize(), SPI_result_code_string(), sprintf_double_value(), sprintf_float_value(), sql_check(), sql_exec_searchtables(), stringoffset(), stringrule(), SyncRepWaitForLSN(), tarOpen(), transformRelOptions(), ts_process_call(), tsvectorout(), tt_process_call(), ttdummy(), unsetenv(), winsock_strerror(), worker_spi_launch(), and WriteToc().

strerror

#define strerror   pg_strerror

Definition at line 228 of file port.h.

Referenced by _tarReadRaw(), adjust_data_dir(), auth_peer(), cfgetc(), cfread(), change_directory(), check_bin_dir(), check_errno(), check_file_clone(), check_for_data_type_usage(), check_for_isn_and_int8_passing_mismatch(), check_for_jsonb_9_4_usage(), check_for_reg_data_type_usage(), check_for_tables_with_oids(), check_for_user_defined_postfix_ops(), check_hard_link(), check_loadable_libraries(), check_ok(), check_single_dir(), checkControlFile(), CheckForExternalTrigger(), cloneFile(), close_file(), convert_sourcefiles_in(), copyFile(), create_script_for_cluster_analyze(), create_script_for_old_cluster_deletion(), CustomizableCleanupPriorWALFiles(), dir_getlasterror(), do_edit(), do_kill(), do_logrotate(), do_promote(), do_reload(), do_restart(), do_stop(), dolink(), exec_command_cd(), file_line_count(), file_size(), func_call_1(), func_call_2(), get_bin_version(), get_cfp_error(), get_control_data(), get_pgpid(), get_sock_dir(), get_tablespace_paths(), get_user_name(), gnuish_strerror_r(), infile(), initialize_environment(), linkFile(), load_resultmap(), main(), make_absolute_path(), make_directory(), memcheck(), mkdirs(), new_9_0_populate_pg_largeobject_metadata(), old_9_6_invalidate_hash_indexes(), open_result_files(), parallel_exec_prog(), parallel_transfer_all_new_dbs(), pid_lock_file_exists(), PostmasterMain(), PostmasterMarkPIDForWorkerNotify(), pvsnprintf(), reap_child(), regression_main(), report_fork_failure_to_client(), results_differ(), rewriteVisibilityMap(), run_schedule(), scan_available_timezones(), SelectConfigFiles(), SetWALSegSize(), spawn_process(), start_postmaster(), stop_postmaster(), tablespace_list_append(), tar_getlasterror(), tokenize_file(), tokenize_inc_file(), transfer_relfile(), trap_sigint_during_startup(), try_complete_step(), validate_exec(), wait_for_tests(), write_syslogger_file(), and writezone().

strerror_r

#define strerror_r   pg_strerror_r

Definition at line 232 of file port.h.

Referenced by dopr(), gnuish_strerror_r(), initialize_SSL(), lo_export(), lo_import_internal(), pg_fe_getauthname(), pg_local_sendauth(), and PQconnectPoll().

TIMEZONE_GLOBAL

#define TIMEZONE_GLOBAL   timezone

Definition at line 245 of file port.h.

Referenced by abstime2tm(), get_timezone_offset(), and timestamp2tm().

TZNAME_GLOBAL

#define TZNAME_GLOBAL   tzname

Definition at line 246 of file port.h.

Referenced by abstime2tm(), and timestamp2tm().

USE_REPL_SNPRINTF

#define USE_REPL_SNPRINTF   1

Definition at line 165 of file port.h.

vfprintf

#define vfprintf   pg_vfprintf

Definition at line 218 of file port.h.

Referenced by ecpg_log(), pg_log_generic_v(), print_lo_result(), status(), verror(), and write_stderr().

vprintf

#define vprintf   pg_vprintf

Definition at line 220 of file port.h.

vsnprintf

#define vsnprintf   pg_vsnprintf

Definition at line 214 of file port.h.

Referenced by appendPQExpBufferVA(), dblink_res_error(), do_serialize(), exec_prog(), executeQueryOrDie(), header(), parallel_exec_prog(), pg_log_generic_v(), pg_log_v(), PLy_exception_set(), PLy_exception_set_plural(), pqInternalNotice(), prep_status(), psql_command(), pvsnprintf(), px_debug(), report_invalid_record(), report_status(), and write_stderr().

vsprintf

#define vsprintf   pg_vsprintf

Definition at line 216 of file port.h.

Typedef Documentation

pgsocket

typedef int pgsocket

Definition at line 31 of file port.h.

pqsigfunc

typedef void(* pqsigfunc) (int signo)

Definition at line 531 of file port.h.

qsort_arg_comparator

typedef int(* qsort_arg_comparator) (const void *a, const void *b, void *arg)

Definition at line 499 of file port.h.

Function Documentation

canonicalize_path()

void canonicalize_path

(

char *

path

)

Definition at line 254 of file path.c.

References skip_drive, trim_directory(), and trim_trailing_separator().

Referenced by adjust_data_dir(), check_canonical_path(), check_required_directory(), convert_and_check_filename(), create_script_for_old_cluster_deletion(), create_xlog_or_symlink(), CreateTableSpace(), do_copy(), exec_command_edit(), exec_command_write(), find_in_dynamic_libpath(), find_my_exec(), find_other_exec(), get_tablespace_mapping(), main(), make_absolute_path(), make_relative_path(), parseCommandLine(), process_file(), resolve_symlinks(), set_pglocale_pgservice(), setup(), setup_bin_paths(), setup_pgdata(), SplitDirectoriesString(), tablespace_list_append(), and tokenize_inc_file().

{
    char       *p,
               *to_p;
    char       *spath;
    bool        was_sep = false;
    int         pending_strips;

#ifdef WIN32

    /*
     * The Windows command processor will accept suitably quoted paths with
     * forward slashes, but barfs badly with mixed forward and back slashes.
     */
    for (p = path; *p; p++)
    {
        if (*p == '\\')
            *p = '/';
    }

    /*
     * In Win32, if you do: prog.exe "a b" "\c\d\" the system will pass \c\d"
     * as argv[2], so trim off trailing quote.
     */
    if (p > path && *(p - 1) == '"')
        *(p - 1) = '/';
#endif

    /*
     * Removing the trailing slash on a path means we never get ugly double
     * trailing slashes. Also, Win32 can't stat() a directory with a trailing
     * slash. Don't remove a leading slash, though.
     */
    trim_trailing_separator(path);

    /*
     * Remove duplicate adjacent separators
     */
    p = path;
#ifdef WIN32
    /* Don't remove leading double-slash on Win32 */
    if (*p)
        p++;
#endif
    to_p = p;
    for (; *p; p++, to_p++)
    {
        /* Handle many adjacent slashes, like "/a///b" */
        while (*p == '/' && was_sep)
            p++;
        if (to_p != p)
            *to_p = *p;
        was_sep = (*p == '/');
    }
    *to_p = '\0';

    /*
     * Remove any trailing uses of "." and process ".." ourselves
     *
     * Note that "/../.." should reduce to just "/", while "../.." has to be
     * kept as-is.  In the latter case we put back mistakenly trimmed ".."
     * components below.  Also note that we want a Windows drive spec to be
     * visible to trim_directory(), but it's not part of the logic that's
     * looking at the name components; hence distinction between path and
     * spath.
     */
    spath = skip_drive(path);
    pending_strips = 0;
    for (;;)
    {
        int         len = strlen(spath);

        if (len >= 2 && strcmp(spath + len - 2, "/.") == 0)
            trim_directory(path);
        else if (strcmp(spath, ".") == 0)
        {
            /* Want to leave "." alone, but "./.." has to become ".." */
            if (pending_strips > 0)
                *spath = '\0';
            break;
        }
        else if ((len >= 3 && strcmp(spath + len - 3, "/..") == 0) ||
                 strcmp(spath, "..") == 0)
        {
            trim_directory(path);
            pending_strips++;
        }
        else if (pending_strips > 0 && *spath != '\0')
        {
            /* trim a regular directory name canceled by ".." */
            trim_directory(path);
            pending_strips--;
            /* foo/.. should become ".", not empty */
            if (*spath == '\0')
                strcpy(spath, ".");
        }
        else
            break;
    }

    if (pending_strips > 0)
    {
        /*
         * We could only get here if path is now totally empty (other than a
         * possible drive specifier on Windows). We have to put back one or
         * more ".."'s that we took off.
         */
        while (--pending_strips > 0)
            strcat(path, "../");
        strcat(path, "..");
    }
}

cleanup_path()

void cleanup_path

(

char *

path

)

Definition at line 185 of file path.c.

References MAXPGPATH.

Referenced by get_configdata().

{
#ifdef WIN32
    char       *ptr;

    /*
     * GetShortPathName() will fail if the path does not exist, or short names
     * are disabled on this file system.  In both cases, we just return the
     * original path.  This is particularly useful for --sysconfdir, which
     * might not exist.
     */
    GetShortPathName(path, path, MAXPGPATH - 1);

    /* Replace '\' with '/' */
    for (ptr = path; *ptr; ptr++)
    {
        if (*ptr == '\\')
            *ptr = '/';
    }
#endif
}

dlclose()

int dlclose

(

void *

handle

)

Referenced by internal_load_library(), and internal_unload_library().

dlerror()

char* dlerror

(

void

)

Referenced by internal_load_library().

dlopen()

void* dlopen	(	const char *	file,
		int	mode
	)

Referenced by internal_load_library().

dlsym()

void* dlsym	(	void *	handle,
		const char *	symbol
	)

Referenced by internal_load_library(), internal_unload_library(), load_external_function(), and lookup_external_function().

escape_single_quotes_ascii()

char* escape_single_quotes_ascii

(

const char *

src

)

Definition at line 33 of file quotes.c.

References i, malloc, and SQL_STR_DOUBLE.

Referenced by escape_quotes(), and write_auto_conf_file().

{
    int         len = strlen(src),
                i,
                j;
    char       *result = malloc(len * 2 + 1);

    if (!result)
        return NULL;

    for (i = 0, j = 0; i < len; i++)
    {
        if (SQL_STR_DOUBLE(src[i], true))
            result[j++] = src[i];
        result[j++] = src[i];
    }
    result[j] = '\0';
    return result;
}

explicit_bzero()

void explicit_bzero	(	void *	buf,
		size_t	len
	)

Definition at line 50 of file explicit_bzero.c.

References bzero_p.

Referenced by freePGconn(), passwordFromFile(), and run_ssl_passphrase_command().

{
    bzero_p(buf, len);
}

find_my_exec()

int find_my_exec	(	const char *	argv0,
		char *	retpath
	)

Definition at line 128 of file exec.c.

References _, canonicalize_path(), errcode(), errcode_for_file_access(), ERRCODE_WRONG_OBJECT_TYPE, first_dir_separator(), first_path_var_separator(), is_absolute_path, join_path_components(), log_error, MAXPGPATH, Min, resolve_symlinks(), strlcpy(), and validate_exec().

Referenced by do_kill(), ensureCleanShutdown(), find_other_exec(), find_other_exec_or_die(), getInstallationPaths(), getRestoreCommand(), InitStandaloneProcess(), main(), process_psqlrc(), set_pglocale_pgservice(), setup(), and setup_bin_paths().

{
    char        cwd[MAXPGPATH],
                test_path[MAXPGPATH];
    char       *path;

    if (!getcwd(cwd, MAXPGPATH))
    {
        log_error(errcode_for_file_access(),
                  _("could not identify current directory: %m"));
        return -1;
    }

    /*
     * If argv0 contains a separator, then PATH wasn't used.
     */
    if (first_dir_separator(argv0) != NULL)
    {
        if (is_absolute_path(argv0))
            strlcpy(retpath, argv0, MAXPGPATH);
        else
            join_path_components(retpath, cwd, argv0);
        canonicalize_path(retpath);

        if (validate_exec(retpath) == 0)
            return resolve_symlinks(retpath);

        log_error(errcode(ERRCODE_WRONG_OBJECT_TYPE),
                  _("invalid binary \"%s\""), retpath);
        return -1;
    }

#ifdef WIN32
    /* Win32 checks the current directory first for names without slashes */
    join_path_components(retpath, cwd, argv0);
    if (validate_exec(retpath) == 0)
        return resolve_symlinks(retpath);
#endif

    /*
     * Since no explicit path was supplied, the user must have been relying on
     * PATH.  We'll search the same PATH.
     */
    if ((path = getenv("PATH")) && *path)
    {
        char       *startp = NULL,
                   *endp = NULL;

        do
        {
            if (!startp)
                startp = path;
            else
                startp = endp + 1;

            endp = first_path_var_separator(startp);
            if (!endp)
                endp = startp + strlen(startp); /* point to end */

            strlcpy(test_path, startp, Min(endp - startp + 1, MAXPGPATH));

            if (is_absolute_path(test_path))
                join_path_components(retpath, test_path, argv0);
            else
            {
                join_path_components(retpath, cwd, test_path);
                join_path_components(retpath, retpath, argv0);
            }
            canonicalize_path(retpath);

            switch (validate_exec(retpath))
            {
                case 0:         /* found ok */
                    return resolve_symlinks(retpath);
                case -1:        /* wasn't even a candidate, keep looking */
                    break;
                case -2:        /* found but disqualified */
                    log_error(errcode(ERRCODE_WRONG_OBJECT_TYPE),
                              _("could not read binary \"%s\""),
                              retpath);
                    break;
            }
        } while (*endp);
    }

    log_error(errcode(ERRCODE_UNDEFINED_FILE),
              _("could not find a \"%s\" to execute"), argv0);
    return -1;
}

find_other_exec()

int find_other_exec	(	const char *	argv0,
		const char *	target,
		const char *	versionstr,
		char *	retpath
	)

Definition at line 323 of file exec.c.

References canonicalize_path(), EXE, find_my_exec(), last_dir_separator(), MAXPGPATH, pipe_read_line(), snprintf, and validate_exec().

Referenced by do_kill(), ensureCleanShutdown(), find_other_exec_or_die(), getInstallationPaths(), getRestoreCommand(), isolation_start_test(), main(), and setup_bin_paths().

{
    char        cmd[MAXPGPATH];
    char        line[MAXPGPATH];

    if (find_my_exec(argv0, retpath) < 0)
        return -1;

    /* Trim off program name and keep just directory */
    *last_dir_separator(retpath) = '\0';
    canonicalize_path(retpath);

    /* Now append the other program's name */
    snprintf(retpath + strlen(retpath), MAXPGPATH - strlen(retpath),
             "/%s%s", target, EXE);

    if (validate_exec(retpath) != 0)
        return -1;

    snprintf(cmd, sizeof(cmd), "\"%s\" -V", retpath);

    if (!pipe_read_line(cmd, line, sizeof(line)))
        return -1;

    if (strcmp(line, versionstr) != 0)
        return -2;

    return 0;
}

first_dir_separator()

char* first_dir_separator

(

const char *

filename

)

Definition at line 103 of file path.c.

References IS_DIR_SEP, skip_drive, and unconstify.

Referenced by check_restricted_library_name(), check_valid_extension_name(), check_valid_version_name(), expand_dynamic_library_name(), find_in_dynamic_libpath(), find_my_exec(), load_libraries(), and substitute_libpath_macro().

{
    const char *p;

    for (p = skip_drive(filename); *p; p++)
        if (IS_DIR_SEP(*p))
            return unconstify(char *, p);
    return NULL;
}

first_path_var_separator()

char* first_path_var_separator

(

const char *

pathlist

)

Definition at line 120 of file path.c.

References IS_PATH_VAR_SEP, and unconstify.

Referenced by find_in_dynamic_libpath(), and find_my_exec().

{
    const char *p;

    /* skip_drive is not needed */
    for (p = pathlist; *p; p++)
        if (IS_PATH_VAR_SEP(*p))
            return unconstify(char *, p);
    return NULL;
}

fls()

int fls

(

int

mask

)

Definition at line 55 of file fls.c.

References bit().

Referenced by _hash_get_oldblock_from_newbucket(), add_paths_to_append_rel(), and generate_union_paths().

{
    int         bit;

    if (mask == 0)
        return (0);
    for (bit = 1; mask != 1; bit++)
        mask = (unsigned int) mask >> 1;
    return (bit);
}

get_doc_path()

void get_doc_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 776 of file path.c.

References make_relative_path().

Referenced by get_configdata().

{
    make_relative_path(ret_path, DOCDIR, PGBINDIR, my_exec_path);
}

get_etc_path()

void get_etc_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 713 of file path.c.

References make_relative_path().

Referenced by get_configdata(), process_psqlrc(), and set_pglocale_pgservice().

{
    make_relative_path(ret_path, SYSCONFDIR, PGBINDIR, my_exec_path);
}

get_home_path()

bool get_home_path

(

char *

ret_path

)

Definition at line 807 of file path.c.

References MAXPGPATH, pqGetpwuid(), snprintf, and strlcpy().

Referenced by expand_tilde(), initializeInput(), and process_psqlrc().

{
#ifndef WIN32
    char        pwdbuf[BUFSIZ];
    struct passwd pwdstr;
    struct passwd *pwd = NULL;

    (void) pqGetpwuid(geteuid(), &pwdstr, pwdbuf, sizeof(pwdbuf), &pwd);
    if (pwd == NULL)
        return false;
    strlcpy(ret_path, pwd->pw_dir, MAXPGPATH);
    return true;
#else
    char       *tmppath;

    /*
     * Note: We use getenv() here because the more modern SHGetFolderPath()
     * would force the backend to link with shell32.lib, which eats valuable
     * desktop heap.  XXX This function is used only in psql, which already
     * brings in shell32 via libpq.  Moving this function to its own file
     * would keep it out of the backend, freeing it from this concern.
     */
    tmppath = getenv("APPDATA");
    if (!tmppath)
        return false;
    snprintf(ret_path, MAXPGPATH, "%s/postgresql", tmppath);
    return true;
#endif
}

get_html_path()

void get_html_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 785 of file path.c.

References make_relative_path().

Referenced by get_configdata().

{
    make_relative_path(ret_path, HTMLDIR, PGBINDIR, my_exec_path);
}

get_include_path()

void get_include_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 722 of file path.c.

References make_relative_path().

Referenced by get_configdata(), and main().

{
    make_relative_path(ret_path, INCLUDEDIR, PGBINDIR, my_exec_path);
}

get_includeserver_path()

void get_includeserver_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 740 of file path.c.

References make_relative_path().

Referenced by get_configdata().

{
    make_relative_path(ret_path, INCLUDEDIRSERVER, PGBINDIR, my_exec_path);
}

get_lib_path()

void get_lib_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 749 of file path.c.

References make_relative_path().

Referenced by get_configdata().

{
    make_relative_path(ret_path, LIBDIR, PGBINDIR, my_exec_path);
}

get_locale_path()

void get_locale_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 767 of file path.c.

References make_relative_path().

Referenced by get_configdata(), pg_bindtextdomain(), and set_pglocale_pgservice().

{
    make_relative_path(ret_path, LOCALEDIR, PGBINDIR, my_exec_path);
}

get_man_path()

void get_man_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 794 of file path.c.

References make_relative_path().

Referenced by get_configdata().

{
    make_relative_path(ret_path, MANDIR, PGBINDIR, my_exec_path);
}

get_parent_directory()

void get_parent_directory

(

char *

path

)

Definition at line 854 of file path.c.

References trim_directory().

Referenced by destroy_tablespace_directories(), fsync_parent_path(), main(), process_file(), TablespaceCreateDbspace(), and tokenize_inc_file().

{
    trim_directory(path);
}

get_pkginclude_path()

void get_pkginclude_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 731 of file path.c.

References make_relative_path().

Referenced by get_configdata(), and main().

{
    make_relative_path(ret_path, PKGINCLUDEDIR, PGBINDIR, my_exec_path);
}

get_pkglib_path()

void get_pkglib_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 758 of file path.c.

References make_relative_path().

Referenced by get_configdata(), getInstallationPaths(), and InitStandaloneProcess().

{
    make_relative_path(ret_path, PKGLIBDIR, PGBINDIR, my_exec_path);
}

get_progname()

const char* get_progname

(

const char *

argv0

)

Definition at line 453 of file path.c.

References EXE, fprintf, last_dir_separator(), pg_strcasecmp(), progname, and skip_drive.

Referenced by get_opts(), handle_help_version_opts(), main(), parseCommandLine(), pg_logging_init(), and regression_main().

{
    const char *nodir_name;
    char       *progname;

    nodir_name = last_dir_separator(argv0);
    if (nodir_name)
        nodir_name++;
    else
        nodir_name = skip_drive(argv0);

    /*
     * Make a copy in case argv[0] is modified by ps_status. Leaks memory, but
     * called only once.
     */
    progname = strdup(nodir_name);
    if (progname == NULL)
    {
        fprintf(stderr, "%s: out of memory\n", nodir_name);
        abort();                /* This could exit the postmaster */
    }

#if defined(__CYGWIN__) || defined(WIN32)
    /* strip ".exe" suffix, regardless of case */
    if (strlen(progname) > sizeof(EXE) - 1 &&
        pg_strcasecmp(progname + strlen(progname) - (sizeof(EXE) - 1), EXE) == 0)
        progname[strlen(progname) - (sizeof(EXE) - 1)] = '\0';
#endif

    return progname;
}

get_share_path()

void get_share_path	(	const char *	my_exec_path,
		char *	ret_path
	)

Definition at line 704 of file path.c.

References make_relative_path().

Referenced by get_configdata(), get_extension_control_directory(), get_extension_control_filename(), get_extension_script_directory(), get_tsearch_config_filename(), ParseTzFile(), pg_TZDIR(), and setup_bin_paths().

{
    make_relative_path(ret_path, PGSHAREDIR, PGBINDIR, my_exec_path);
}

getpeereid()

int getpeereid	(	int	sock,
		uid_t *	uid,
		gid_t *	gid
	)

Definition at line 35 of file getpeereid.c.

Referenced by auth_peer(), and PQconnectPoll().

{
#if defined(SO_PEERCRED)
    /* Linux: use getsockopt(SO_PEERCRED) */
    struct ucred peercred;
    ACCEPT_TYPE_ARG3 so_len = sizeof(peercred);

    if (getsockopt(sock, SOL_SOCKET, SO_PEERCRED, &peercred, &so_len) != 0 ||
        so_len != sizeof(peercred))
        return -1;
    *uid = peercred.uid;
    *gid = peercred.gid;
    return 0;
#elif defined(LOCAL_PEERCRED)
    /* Debian with FreeBSD kernel: use getsockopt(LOCAL_PEERCRED) */
    struct xucred peercred;
    ACCEPT_TYPE_ARG3 so_len = sizeof(peercred);

    if (getsockopt(sock, 0, LOCAL_PEERCRED, &peercred, &so_len) != 0 ||
        so_len != sizeof(peercred) ||
        peercred.cr_version != XUCRED_VERSION)
        return -1;
    *uid = peercred.cr_uid;
    *gid = peercred.cr_gid;
    return 0;
#elif defined(HAVE_GETPEERUCRED)
    /* Solaris: use getpeerucred() */
    ucred_t    *ucred;

    ucred = NULL;               /* must be initialized to NULL */
    if (getpeerucred(sock, &ucred) == -1)
        return -1;

    *uid = ucred_geteuid(ucred);
    *gid = ucred_getegid(ucred);
    ucred_free(ucred);

    if (*uid == (uid_t) (-1) || *gid == (gid_t) (-1))
        return -1;
    return 0;
#else
    /* No implementation available on this platform */
    errno = ENOSYS;
    return -1;
#endif
}

has_drive_prefix()

bool has_drive_prefix

(

const char *

filename

)

Definition at line 87 of file path.c.

References skip_drive.

Referenced by process_file().

{
#ifdef WIN32
    return skip_drive(path) != path;
#else
    return false;
#endif
}

inet_aton()

int inet_aton	(	const char *	cp,
		struct in_addr *	addr
	)

Definition at line 56 of file inet_aton.c.

References pg_hton32, and val.

Referenced by getaddrinfo().

{
    unsigned int val;
    int         base,
                n;
    char        c;
    u_int       parts[4];
    u_int      *pp = parts;

    for (;;)
    {
        /*
         * Collect number up to ``.''. Values are specified as for C: 0x=hex,
         * 0=octal, other=decimal.
         */
        val = 0;
        base = 10;
        if (*cp == '0')
        {
            if (*++cp == 'x' || *cp == 'X')
                base = 16, cp++;
            else
                base = 8;
        }
        while ((c = *cp) != '\0')
        {
            if (isdigit((unsigned char) c))
            {
                val = (val * base) + (c - '0');
                cp++;
                continue;
            }
            if (base == 16 && isxdigit((unsigned char) c))
            {
                val = (val << 4) +
                    (c + 10 - (islower((unsigned char) c) ? 'a' : 'A'));
                cp++;
                continue;
            }
            break;
        }
        if (*cp == '.')
        {
            /*
             * Internet format: a.b.c.d a.b.c   (with c treated as 16-bits)
             * a.b     (with b treated as 24 bits)
             */
            if (pp >= parts + 3 || val > 0xff)
                return 0;
            *pp++ = val, cp++;
        }
        else
            break;
    }

    /*
     * Check for trailing junk.
     */
    while (*cp)
        if (!isspace((unsigned char) *cp++))
            return 0;

    /*
     * Concoct the address according to the number of parts specified.
     */
    n = pp - parts + 1;
    switch (n)
    {

        case 1:                 /* a -- 32 bits */
            break;

        case 2:                 /* a.b -- 8.24 bits */
            if (val > 0xffffff)
                return 0;
            val |= parts[0] << 24;
            break;

        case 3:                 /* a.b.c -- 8.8.16 bits */
            if (val > 0xffff)
                return 0;
            val |= (parts[0] << 24) | (parts[1] << 16);
            break;

        case 4:                 /* a.b.c.d -- 8.8.8.8 bits */
            if (val > 0xff)
                return 0;
            val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
            break;
    }
    if (addr)
        addr->s_addr = pg_hton32(val);
    return 1;
}

join_path_components()

void join_path_components	(	char *	ret_path,
		const char *	head,
		const char *	tail
	)

Definition at line 218 of file path.c.

References IS_DIR_SEP, MAXPGPATH, skip_drive, snprintf, and strlcpy().

Referenced by find_my_exec(), main(), make_relative_path(), process_file(), resolve_symlinks(), and tokenize_inc_file().

{
    if (ret_path != head)
        strlcpy(ret_path, head, MAXPGPATH);

    /*
     * Remove any leading "." in the tail component.
     *
     * Note: we used to try to remove ".." as well, but that's tricky to get
     * right; now we just leave it to be done by canonicalize_path() later.
     */
    while (tail[0] == '.' && IS_DIR_SEP(tail[1]))
        tail += 2;

    if (*tail)
    {
        /* only separate with slash if head wasn't empty */
        snprintf(ret_path + strlen(ret_path), MAXPGPATH - strlen(ret_path),
                 "%s%s",
                 (*(skip_drive(head)) != '\0') ? "/" : "",
                 tail);
    }
}

last_dir_separator()

char* last_dir_separator

(

const char *

filename

)

Definition at line 138 of file path.c.

References IS_DIR_SEP, skip_drive, and unconstify.

Referenced by check_file_excluded(), ECPGconnect(), find_other_exec(), get_progname(), main(), resolve_symlinks(), sendDir(), sendFile(), setup(), and setup_bin_paths().

{
    const char *p,
               *ret = NULL;

    for (p = skip_drive(filename); *p; p++)
        if (IS_DIR_SEP(*p))
            ret = p;
    return unconstify(char *, ret);
}

link()

int link	(	const char *	src,
		const char *	dst
	)

Referenced by check_hard_link(), durable_rename_excl(), and linkFile().

make_absolute_path()

char* make_absolute_path

(

const char *

path

)

Definition at line 608 of file path.c.

References _, buf, canonicalize_path(), elog, ereport, errcode(), errmsg(), ERROR, fprintf, free, is_absolute_path, malloc, MAXPGPATH, sprintf, and strerror.

Referenced by do_kill(), regression_main(), SelectConfigFiles(), and SetDataDir().

{
    char       *new;

    /* Returning null for null input is convenient for some callers */
    if (path == NULL)
        return NULL;

    if (!is_absolute_path(path))
    {
        char       *buf;
        size_t      buflen;

        buflen = MAXPGPATH;
        for (;;)
        {
            buf = malloc(buflen);
            if (!buf)
            {
#ifndef FRONTEND
                ereport(ERROR,
                        (errcode(ERRCODE_OUT_OF_MEMORY),
                         errmsg("out of memory")));
#else
                fprintf(stderr, _("out of memory\n"));
                return NULL;
#endif
            }

            if (getcwd(buf, buflen))
                break;
            else if (errno == ERANGE)
            {
                free(buf);
                buflen *= 2;
                continue;
            }
            else
            {
                int         save_errno = errno;

                free(buf);
                errno = save_errno;
#ifndef FRONTEND
                elog(ERROR, "could not get current working directory: %m");
#else
                fprintf(stderr, _("could not get current working directory: %s\n"),
                        strerror(errno));
                return NULL;
#endif
            }
        }

        new = malloc(strlen(buf) + strlen(path) + 2);
        if (!new)
        {
            free(buf);
#ifndef FRONTEND
            ereport(ERROR,
                    (errcode(ERRCODE_OUT_OF_MEMORY),
                     errmsg("out of memory")));
#else
            fprintf(stderr, _("out of memory\n"));
            return NULL;
#endif
        }
        sprintf(new, "%s/%s", buf, path);
        free(buf);
    }
    else
    {
        new = strdup(path);
        if (!new)
        {
#ifndef FRONTEND
            ereport(ERROR,
                    (errcode(ERRCODE_OUT_OF_MEMORY),
                     errmsg("out of memory")));
#else
            fprintf(stderr, _("out of memory\n"));
            return NULL;
#endif
        }
    }

    /* Make sure punctuation is canonical, too */
    canonicalize_path(new);

    return new;
}

make_native_path()

void make_native_path

(

char *

path

)

Definition at line 166 of file path.c.

Referenced by BuildRestoreCommand(), do_kill(), and pgarch_archiveXlog().

{
#ifdef WIN32
    char       *p;

    for (p = filename; *p; p++)
        if (*p == '/')
            *p = '\\';
#endif
}

mkdtemp()

char* mkdtemp

(

char *

path

)

Definition at line 286 of file mkdtemp.c.

References _DIAGASSERT, and GETTEMP().

Referenced by stop_postmaster().

{
    _DIAGASSERT(path != NULL);

    return GETTEMP(path, NULL, 1) ? path : NULL;
}

path_contains_parent_reference()

bool path_contains_parent_reference

(

const char *

path

)

Definition at line 376 of file path.c.

References skip_drive.

Referenced by convert_and_check_filename(), and path_is_relative_and_below_cwd().

{
    int         path_len;

    path = skip_drive(path);    /* C: shouldn't affect our conclusion */

    path_len = strlen(path);

    /*
     * ".." could be the whole path; otherwise, if it's present it must be at
     * the beginning, in the middle, or at the end.
     */
    if (strcmp(path, "..") == 0 ||
        strncmp(path, "../", 3) == 0 ||
        strstr(path, "/../") != NULL ||
        (path_len >= 3 && strcmp(path + path_len - 3, "/..") == 0))
        return true;

    return false;
}

path_is_prefix_of_path()

bool path_is_prefix_of_path	(	const char *	path1,
		const char *	path2
	)

Definition at line 438 of file path.c.

References IS_DIR_SEP.

Referenced by convert_and_check_filename(), create_script_for_old_cluster_deletion(), CreateTableSpace(), and parseCommandLine().

{
    int         path1_len = strlen(path1);

    if (strncmp(path1, path2, path1_len) == 0 &&
        (IS_DIR_SEP(path2[path1_len]) || path2[path1_len] == '\0'))
        return true;
    return false;
}

path_is_relative_and_below_cwd()

bool path_is_relative_and_below_cwd

(

const char *

path

)

Definition at line 405 of file path.c.

References is_absolute_path, IS_DIR_SEP, and path_contains_parent_reference().

Referenced by convert_and_check_filename().

{
    if (is_absolute_path(path))
        return false;
    /* don't allow anything above the cwd */
    else if (path_contains_parent_reference(path))
        return false;
#ifdef WIN32

    /*
     * On Win32, a drive letter _not_ followed by a slash, e.g. 'E:abc', is
     * relative to the cwd on that drive, or the drive's root directory if
     * that drive has no cwd.  Because the path itself cannot tell us which is
     * the case, we have to assume the worst, i.e. that it is not below the
     * cwd.  We could use GetFullPathName() to find the full path but that
     * could change if the current directory for the drive changes underneath
     * us, so we just disallow it.
     */
    else if (isalpha((unsigned char) path[0]) && path[1] == ':' &&
             !IS_DIR_SEP(path[2]))
        return false;
#endif
    else
        return true;
}

pclose_check()

int pclose_check

(

FILE *

stream

)

Definition at line 396 of file exec.c.

References _, errcode(), log_error, pfree(), and wait_result_to_str().

Referenced by pipe_read_line().

{
    int         exitstatus;
    char       *reason;

    exitstatus = pclose(stream);

    if (exitstatus == 0)
        return 0;               /* all is well */

    if (exitstatus == -1)
    {
        /* pclose() itself failed, and hopefully set errno */
        log_error(errcode(ERRCODE_SYSTEM_ERROR),
                  _("pclose failed: %m"));
    }
    else
    {
        reason = wait_result_to_str(exitstatus);
        log_error(errcode(ERRCODE_SYSTEM_ERROR),
                  "%s", reason);
        pfree(reason);
    }
    return exitstatus;
}

pg_ascii_tolower()

unsigned char pg_ascii_tolower

(

unsigned char

ch

)

Definition at line 146 of file pgstrcasecmp.c.

Referenced by asc_initcap(), asc_tolower(), pg_wc_tolower(), SB_lower_char(), and seq_search_ascii().

{
    if (ch >= 'A' && ch <= 'Z')
        ch += 'a' - 'A';
    return ch;
}

pg_ascii_toupper()

unsigned char pg_ascii_toupper

(

unsigned char

ch

)

Definition at line 135 of file pgstrcasecmp.c.

Referenced by asc_initcap(), asc_toupper(), filter_list_to_array(), and pg_wc_toupper().

{
    if (ch >= 'a' && ch <= 'z')
        ch += 'A' - 'a';
    return ch;
}

pg_check_dir()

int pg_check_dir

(

const char *

dir

)

Definition at line 31 of file pgcheckdir.c.

References closedir(), dirent::d_name, opendir(), and readdir().

Referenced by create_data_directory(), create_xlog_or_symlink(), main(), and verify_dir_is_empty_or_create().

{
    int         result = 1;
    DIR        *chkdir;
    struct dirent *file;
    bool        dot_found = false;
    bool        mount_found = false;
    int         readdir_errno;

    chkdir = opendir(dir);
    if (chkdir == NULL)
        return (errno == ENOENT) ? 0 : -1;

    while (errno = 0, (file = readdir(chkdir)) != NULL)
    {
        if (strcmp(".", file->d_name) == 0 ||
            strcmp("..", file->d_name) == 0)
        {
            /* skip this and parent directory */
            continue;
        }
#ifndef WIN32
        /* file starts with "." */
        else if (file->d_name[0] == '.')
        {
            dot_found = true;
        }
        /* lost+found directory */
        else if (strcmp("lost+found", file->d_name) == 0)
        {
            mount_found = true;
        }
#endif
        else
        {
            result = 4;         /* not empty */
            break;
        }
    }

    if (errno)
        result = -1;            /* some kind of I/O error? */

    /* Close chkdir and avoid overwriting the readdir errno on success */
    readdir_errno = errno;
    if (closedir(chkdir))
        result = -1;            /* error executing closedir */
    else
        errno = readdir_errno;

    /* We report on mount point if we find a lost+found directory */
    if (result == 1 && mount_found)
        result = 3;

    /* We report on dot-files if we _only_ find dot files */
    if (result == 1 && dot_found)
        result = 2;

    return result;
}

pg_erand48()

double pg_erand48

(

unsigned short

xseed[3]

)

Definition at line 88 of file erand48.c.

References _dorand48().

Referenced by computeIterativeZipfian(), doLog(), drandom(), geqo_rand(), getExponentialRand(), getGaussianRand(), getPoissonRand(), getrand(), and sampler_random_fract().

{
    uint64      x = _dorand48(xseed);

    return ldexp((double) (x & UINT64CONST(0xFFFFFFFFFFFF)), -48);
}

pg_fprintf()

int pg_fprintf	(	FILE *	stream,
		const char *	fmt,
			...
	)

pg_get_encoding_from_locale()

int pg_get_encoding_from_locale	(	const char *	ctype,
		bool	write_message
	)

Definition at line 452 of file chklocale.c.

References PG_SQL_ASCII.

Referenced by cache_locale_time(), check_encoding_locale_matches(), check_locale_encoding(), connectOptions2(), pg_import_system_collations(), PGLC_localeconv(), PQsetClientEncoding(), SetMessageEncoding(), and setup_locale_encoding().

{
    return PG_SQL_ASCII;
}

pg_inet_net_ntop()

char* pg_inet_net_ntop	(	int	af,
		const void *	src,
		int	bits,
		char *	dst,
		size_t	size
	)

Definition at line 77 of file inet_net_ntop.c.

References EAFNOSUPPORT, inet_net_ntop_ipv4(), inet_net_ntop_ipv6(), PGSQL_AF_INET, and PGSQL_AF_INET6.

Referenced by getHostaddr(), getnameinfo(), inet_abbrev(), network_host(), network_out(), and network_show().

{
    /*
     * We need to cover both the address family constants used by the PG inet
     * type (PGSQL_AF_INET and PGSQL_AF_INET6) and those used by the system
     * libraries (AF_INET and AF_INET6).  We can safely assume PGSQL_AF_INET
     * == AF_INET, but the INET6 constants are very likely to be different. If
     * AF_INET6 isn't defined, silently ignore it.
     */
    switch (af)
    {
        case PGSQL_AF_INET:
            return (inet_net_ntop_ipv4(src, bits, dst, size));
        case PGSQL_AF_INET6:
#if defined(AF_INET6) && AF_INET6 != PGSQL_AF_INET6
        case AF_INET6:
#endif
            return (inet_net_ntop_ipv6(src, bits, dst, size));
        default:
            errno = EAFNOSUPPORT;
            return (NULL);
    }
}

pg_jrand48()

long pg_jrand48

(

unsigned short

xseed[3]

)

Definition at line 112 of file erand48.c.

References _dorand48().

Referenced by initRandomState(), and main().

{
    uint64      x = _dorand48(xseed);

    return (int32) ((x >> 16) & UINT64CONST(0xFFFFFFFF));
}

pg_lrand48()

long pg_lrand48

(

void

)

Definition at line 100 of file erand48.c.

References _dorand48(), and _rand48_seed.

Referenced by random(), test_huge_distances(), and test_pattern().

{
    uint64      x = _dorand48(_rand48_seed);

    return (x >> 17) & UINT64CONST(0x7FFFFFFF);
}

pg_mkdir_p()

int pg_mkdir_p	(	char *	path,
		int	omode
	)

Definition at line 57 of file pgmkdirp.c.

References mkdir, S_IRWXG, S_IRWXO, S_IRWXU, S_ISDIR, S_IWUSR, S_IXUSR, stat::st_mode, and stat.

Referenced by create_data_directory(), create_xlog_or_symlink(), StartLogStreamer(), and verify_dir_is_empty_or_create().

{
    struct stat sb;
    mode_t      numask,
                oumask;
    int         last,
                retval;
    char       *p;

    retval = 0;
    p = path;

#ifdef WIN32
    /* skip network and drive specifiers for win32 */
    if (strlen(p) >= 2)
    {
        if (p[0] == '/' && p[1] == '/')
        {
            /* network drive */
            p = strstr(p + 2, "/");
            if (p == NULL)
            {
                errno = EINVAL;
                return -1;
            }
        }
        else if (p[1] == ':' &&
                 ((p[0] >= 'a' && p[0] <= 'z') ||
                  (p[0] >= 'A' && p[0] <= 'Z')))
        {
            /* local drive */
            p += 2;
        }
    }
#endif

    /*
     * POSIX 1003.2: For each dir operand that does not name an existing
     * directory, effects equivalent to those caused by the following command
     * shall occur:
     *
     * mkdir -p -m $(umask -S),u+wx $(dirname dir) && mkdir [-m mode] dir
     *
     * We change the user's umask and then restore it, instead of doing
     * chmod's.  Note we assume umask() can't change errno.
     */
    oumask = umask(0);
    numask = oumask & ~(S_IWUSR | S_IXUSR);
    (void) umask(numask);

    if (p[0] == '/')            /* Skip leading '/'. */
        ++p;
    for (last = 0; !last; ++p)
    {
        if (p[0] == '\0')
            last = 1;
        else if (p[0] != '/')
            continue;
        *p = '\0';
        if (!last && p[1] == '\0')
            last = 1;

        if (last)
            (void) umask(oumask);

        /* check for pre-existing directory */
        if (stat(path, &sb) == 0)
        {
            if (!S_ISDIR(sb.st_mode))
            {
                if (last)
                    errno = EEXIST;
                else
                    errno = ENOTDIR;
                retval = -1;
                break;
            }
        }
        else if (mkdir(path, last ? omode : S_IRWXU | S_IRWXG | S_IRWXO) < 0)
        {
            retval = -1;
            break;
        }
        if (!last)
            *p = '/';
    }

    /* ensure we restored umask */
    (void) umask(oumask);

    return retval;
}

pg_pread()

ssize_t pg_pread	(	int	fd,
		void *	buf,
		size_t	nbyte,
		off_t	offset
	)

Definition at line 27 of file pread.c.

References _dosmaperr(), and read.

Referenced by basebackup_read_file(), FileRead(), SlruPhysicalReadPage(), WALRead(), and XLogPageRead().

{
#ifdef WIN32
    OVERLAPPED  overlapped = {0};
    HANDLE      handle;
    DWORD       result;

    handle = (HANDLE) _get_osfhandle(fd);
    if (handle == INVALID_HANDLE_VALUE)
    {
        errno = EBADF;
        return -1;
    }

    overlapped.Offset = offset;
    if (!ReadFile(handle, buf, size, &result, &overlapped))
    {
        if (GetLastError() == ERROR_HANDLE_EOF)
            return 0;

        _dosmaperr(GetLastError());
        return -1;
    }

    return result;
#else
    if (lseek(fd, offset, SEEK_SET) < 0)
        return -1;

    return read(fd, buf, size);
#endif
}

pg_printf()

int pg_printf	(	const char *	fmt,
			...
	)

pg_pwrite()

ssize_t pg_pwrite	(	int	fd,
		const void *	buf,
		size_t	nbyte,
		off_t	offset
	)

Definition at line 27 of file pwrite.c.

References _dosmaperr(), and write.

Referenced by AddToDataDirLockFile(), FileWrite(), heap_xlog_logical_rewrite(), qtext_store(), SlruPhysicalWritePage(), XLogFileInit(), XLogWalRcvWrite(), and XLogWrite().

{
#ifdef WIN32
    OVERLAPPED  overlapped = {0};
    HANDLE      handle;
    DWORD       result;

    handle = (HANDLE) _get_osfhandle(fd);
    if (handle == INVALID_HANDLE_VALUE)
    {
        errno = EBADF;
        return -1;
    }

    overlapped.Offset = offset;
    if (!WriteFile(handle, buf, size, &result, &overlapped))
    {
        _dosmaperr(GetLastError());
        return -1;
    }

    return result;
#else
    if (lseek(fd, offset, SEEK_SET) < 0)
        return -1;

    return write(fd, buf, size);
#endif
}

pg_qsort()

void pg_qsort	(	void *	base,
		size_t	nel,
		size_t	elsize,
		int(*)(const void *, const void *)	cmp
	)

Definition at line 113 of file qsort.c.

References cmp(), med3(), Min, swap, SWAPINIT, and vecswap.

Referenced by apw_load_buffers(), build_distinct_groups(), DropRelFileNodesAllBuffers(), FlushRelationsAllBuffers(), and InitCatalogCache().

{
    char       *pa,
               *pb,
               *pc,
               *pd,
               *pl,
               *pm,
               *pn;
    size_t      d1,
                d2;
    int         r,
                swaptype,
                presorted;

loop:SWAPINIT(a, es);
    if (n < 7)
    {
        for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
            for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
                 pl -= es)
                swap(pl, pl - es);
        return;
    }
    presorted = 1;
    for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
    {
        if (cmp(pm - es, pm) > 0)
        {
            presorted = 0;
            break;
        }
    }
    if (presorted)
        return;
    pm = (char *) a + (n / 2) * es;
    if (n > 7)
    {
        pl = (char *) a;
        pn = (char *) a + (n - 1) * es;
        if (n > 40)
        {
            size_t      d = (n / 8) * es;

            pl = med3(pl, pl + d, pl + 2 * d, cmp);
            pm = med3(pm - d, pm, pm + d, cmp);
            pn = med3(pn - 2 * d, pn - d, pn, cmp);
        }
        pm = med3(pl, pm, pn, cmp);
    }
    swap(a, pm);
    pa = pb = (char *) a + es;
    pc = pd = (char *) a + (n - 1) * es;
    for (;;)
    {
        while (pb <= pc && (r = cmp(pb, a)) <= 0)
        {
            if (r == 0)
            {
                swap(pa, pb);
                pa += es;
            }
            pb += es;
        }
        while (pb <= pc && (r = cmp(pc, a)) >= 0)
        {
            if (r == 0)
            {
                swap(pc, pd);
                pd -= es;
            }
            pc -= es;
        }
        if (pb > pc)
            break;
        swap(pb, pc);
        pb += es;
        pc -= es;
    }
    pn = (char *) a + n * es;
    d1 = Min(pa - (char *) a, pb - pa);
    vecswap(a, pb - d1, d1);
    d1 = Min(pd - pc, pn - pd - es);
    vecswap(pb, pn - d1, d1);
    d1 = pb - pa;
    d2 = pd - pc;
    if (d1 <= d2)
    {
        /* Recurse on left partition, then iterate on right partition */
        if (d1 > es)
            pg_qsort(a, d1 / es, es, cmp);
        if (d2 > es)
        {
            /* Iterate rather than recurse to save stack space */
            /* pg_qsort(pn - d2, d2 / es, es, cmp); */
            a = pn - d2;
            n = d2 / es;
            goto loop;
        }
    }
    else
    {
        /* Recurse on right partition, then iterate on left partition */
        if (d2 > es)
            pg_qsort(pn - d2, d2 / es, es, cmp);
        if (d1 > es)
        {
            /* Iterate rather than recurse to save stack space */
            /* pg_qsort(a, d1 / es, es, cmp); */
            n = d1 / es;
            goto loop;
        }
    }
}

pg_qsort_strcmp()

int pg_qsort_strcmp	(	const void *	a,
		const void *	b
	)

Definition at line 232 of file qsort.c.

Referenced by readstoplist(), and searchstoplist().

{
    return strcmp(*(const char *const *) a, *(const char *const *) b);
}

pg_set_block()

bool pg_set_block

(

pgsocket

sock

)

Definition at line 49 of file noblock.c.

{
#if !defined(WIN32)
    int         flags;

    flags = fcntl(sock, F_GETFL);
    if (flags < 0)
        return false;
    if (fcntl(sock, F_SETFL, (flags & ~O_NONBLOCK)) == -1)
        return false;
    return true;
#else
    unsigned long ioctlsocket_ret = 0;

    /* Returns non-0 on failure, while fcntl() returns -1 on failure */
    return (ioctlsocket(sock, FIONBIO, &ioctlsocket_ret) == 0);
#endif
}

pg_set_noblock()

bool pg_set_noblock

(

pgsocket

sock

)

Definition at line 25 of file noblock.c.

Referenced by pgstat_init(), pq_init(), PQconnectPoll(), and report_fork_failure_to_client().

{
#if !defined(WIN32)
    int         flags;

    flags = fcntl(sock, F_GETFL);
    if (flags < 0)
        return false;
    if (fcntl(sock, F_SETFL, (flags | O_NONBLOCK)) == -1)
        return false;
    return true;
#else
    unsigned long ioctlsocket_ret = 1;

    /* Returns non-0 on failure, while fcntl() returns -1 on failure */
    return (ioctlsocket(sock, FIONBIO, &ioctlsocket_ret) == 0);
#endif
}

pg_snprintf()

int pg_snprintf	(	char *	str,
		size_t	count,
		const char *	fmt,
			...
	)

pg_sprintf()

int pg_sprintf	(	char *	str,
		const char *	fmt,
			...
	)

pg_srand48()

void pg_srand48

(

long

seed

)

Definition at line 131 of file erand48.c.

References _rand48_seed, and RAND48_SEED_0.

Referenced by srandom().

{
    _rand48_seed[0] = RAND48_SEED_0;
    _rand48_seed[1] = (unsigned short) seed;
    _rand48_seed[2] = (unsigned short) (seed >> 16);
}

pg_strcasecmp()

int pg_strcasecmp	(	const char *	s1,
		const char *	s2
	)

Definition at line 36 of file pgstrcasecmp.c.

References IS_HIGHBIT_SET.

Referenced by AlterType(), array_out(), ATExecSetStorage(), build_startup_packet(), cache_locale_time(), check_datestyle(), check_ident_usermap(), check_log_destination(), check_usermap(), check_wal_consistency_checking(), CheckSCRAMAuth(), comp_keyword_case_hook(), config_enum_lookup_by_name(), convert_any_priv_string(), convert_priv_string(), defGetBoolean(), defGetTypeLength(), DefineAggregate(), DefineCollation(), DefineType(), do_kill(), do_pset(), echo_hidden_hook(), echo_hook(), equivalent_locale(), evaluateSleep(), exec_command(), find_matching_ts_config(), get_collation_actual_version(), get_progname(), GetCommandTagEnum(), getMetaCommand(), helpSQL(), histcontrol_hook(), hostname_match(), locate_stem_module(), lookup_prop_name(), main(), makeVariableValue(), on_error_rollback_hook(), parse_basebackup_options(), parse_hstore(), parse_one_reloption(), parse_slash_copy(), parseArchiveFormat(), parseNameAndArgTypes(), ParseVariableBool(), pg_checksum_parse_type(), pg_fe_sendauth(), pg_find_encoding(), pg_size_bytes(), pg_stat_get_progress_info(), pgp_get_cipher_code(), pgp_get_digest_code(), PGTYPEStimestamp_defmt_scan(), plperl_trigger_handler(), plpgsql_extra_checks_check_hook(), PLy_exec_trigger(), pq_verify_peer_name_matches_certificate_name(), pqPacketSend(), pqSetenvPoll(), process_backslash_command(), prsd_headline(), px_find_digest(), px_gen_salt(), px_resolve_alias(), ReadArrayStr(), SetMessageEncoding(), show_context_hook(), splitTzLine(), ssl_protocol_version_to_openssl(), sslVerifyProtocolRange(), sslVerifyProtocolVersion(), SyncRepGetStandbyPriority(), transformPartitionSpec(), unicode_norm_form_from_string(), validate_exec(), variable_is_guc_list_quote(), verbosity_hook(), verify_heapam(), wildcard_certificate_match(), and xmlpi().

{
    for (;;)
    {
        unsigned char ch1 = (unsigned char) *s1++;
        unsigned char ch2 = (unsigned char) *s2++;

        if (ch1 != ch2)
        {
            if (ch1 >= 'A' && ch1 <= 'Z')
                ch1 += 'a' - 'A';
            else if (IS_HIGHBIT_SET(ch1) && isupper(ch1))
                ch1 = tolower(ch1);

            if (ch2 >= 'A' && ch2 <= 'Z')
                ch2 += 'a' - 'A';
            else if (IS_HIGHBIT_SET(ch2) && isupper(ch2))
                ch2 = tolower(ch2);

            if (ch1 != ch2)
                return (int) ch1 - (int) ch2;
        }
        if (ch1 == 0)
            break;
    }
    return 0;
}

pg_strerror()

char* pg_strerror

(

int

errnum

)

Definition at line 35 of file strerror.c.

References pg_strerror_r(), and PG_STRERROR_R_BUFLEN.

{
    static char errorstr_buf[PG_STRERROR_R_BUFLEN];

    return pg_strerror_r(errnum, errorstr_buf, sizeof(errorstr_buf));
}

pg_strerror_r()

char* pg_strerror_r	(	int	errnum,
		char *	buf,
		size_t	buflen
	)

Definition at line 46 of file strerror.c.

References _, buf, get_errno_symbol(), gnuish_strerror_r(), snprintf, and generate_unaccent_rules::str.

Referenced by pg_strerror().

{
    char       *str;

    /* If it's a Windows Winsock error, that needs special handling */
#ifdef WIN32
    /* Winsock error code range, per WinError.h */
    if (errnum >= 10000 && errnum <= 11999)
        return win32_socket_strerror(errnum, buf, buflen);
#endif

    /* Try the platform's strerror_r(), or maybe just strerror() */
    str = gnuish_strerror_r(errnum, buf, buflen);

    /*
     * Some strerror()s return an empty string for out-of-range errno.  This
     * is ANSI C spec compliant, but not exactly useful.  Also, we may get
     * back strings of question marks if libc cannot transcode the message to
     * the codeset specified by LC_CTYPE.  If we get nothing useful, first try
     * get_errno_symbol(), and if that fails, print the numeric errno.
     */
    if (str == NULL || *str == '\0' || *str == '?')
        str = get_errno_symbol(errnum);

    if (str == NULL)
    {
        snprintf(buf, buflen, _("operating system error %d"), errnum);
        str = buf;
    }

    return str;
}

pg_strfromd()

int pg_strfromd	(	char *	str,
		size_t	count,
		int	precision,
		double	value
	)

Definition at line 1263 of file snprintf.c.

References Assert, PrintfTarget::bufend, PrintfTarget::bufptr, PrintfTarget::bufstart, convert(), dopr_outch(), dostr(), PrintfTarget::failed, PrintfTarget::nchars, sprintf, generate_unaccent_rules::str, PrintfTarget::stream, and value.

Referenced by float4out(), and float8out_internal().

{
    PrintfTarget target;
    int         signvalue = 0;
    int         vallen;
    char        fmt[8];
    char        convert[64];

    /* Set up the target like pg_snprintf, but require nonempty buffer */
    Assert(count > 0);
    target.bufstart = target.bufptr = str;
    target.bufend = str + count - 1;
    target.stream = NULL;
    target.nchars = 0;
    target.failed = false;

    /*
     * We bound precision to a reasonable range; the combination of this and
     * the knowledge that we're using "g" format without padding allows the
     * convert[] buffer to be reasonably small.
     */
    if (precision < 1)
        precision = 1;
    else if (precision > 32)
        precision = 32;

    /*
     * The rest is just an inlined version of the fmtfloat() logic above,
     * simplified using the knowledge that no padding is wanted.
     */
    if (isnan(value))
    {
        strcpy(convert, "NaN");
        vallen = 3;
    }
    else
    {
        static const double dzero = 0.0;

        if (value < 0.0 ||
            (value == 0.0 &&
             memcmp(&value, &dzero, sizeof(double)) != 0))
        {
            signvalue = '-';
            value = -value;
        }

        if (isinf(value))
        {
            strcpy(convert, "Infinity");
            vallen = 8;
        }
        else
        {
            fmt[0] = '%';
            fmt[1] = '.';
            fmt[2] = '*';
            fmt[3] = 'g';
            fmt[4] = '\0';
            vallen = sprintf(convert, fmt, precision, value);
            if (vallen < 0)
            {
                target.failed = true;
                goto fail;
            }

#ifdef WIN32
            if (vallen >= 6 &&
                convert[vallen - 5] == 'e' &&
                convert[vallen - 3] == '0')
            {
                convert[vallen - 3] = convert[vallen - 2];
                convert[vallen - 2] = convert[vallen - 1];
                vallen--;
            }
#endif
        }
    }

    if (signvalue)
        dopr_outch(signvalue, &target);

    dostr(convert, vallen, &target);

fail:
    *(target.bufptr) = '\0';
    return target.failed ? -1 : (target.bufptr - target.bufstart
                                 + target.nchars);
}

pg_strncasecmp()

int pg_strncasecmp	(	const char *	s1,
		const char *	s2,
		size_t	n
	)

Definition at line 69 of file pgstrcasecmp.c.

References IS_HIGHBIT_SET.

Referenced by check_datestyle(), check_special_value(), check_timezone(), command_no_begin(), do_pset(), equivalent_locale(), float4in(), float8in_internal_opt_error(), helpSQL(), is_select_command(), MainLoop(), makeVariableValue(), map_sql_identifier_to_xml_name(), numeric_in(), parse_bool_with_len(), parse_jsonb_index_flags(), parse_or_operator(), ParseTzFile(), ParseVariableBool(), pqPacketSend(), range_parse(), scan_directory_ci(), set_unicode_line_style(), set_var_from_str(), and SpecialTags().

{
    while (n-- > 0)
    {
        unsigned char ch1 = (unsigned char) *s1++;
        unsigned char ch2 = (unsigned char) *s2++;

        if (ch1 != ch2)
        {
            if (ch1 >= 'A' && ch1 <= 'Z')
                ch1 += 'a' - 'A';
            else if (IS_HIGHBIT_SET(ch1) && isupper(ch1))
                ch1 = tolower(ch1);

            if (ch2 >= 'A' && ch2 <= 'Z')
                ch2 += 'a' - 'A';
            else if (IS_HIGHBIT_SET(ch2) && isupper(ch2))
                ch2 = tolower(ch2);

            if (ch1 != ch2)
                return (int) ch1 - (int) ch2;
        }
        if (ch1 == 0)
            break;
    }
    return 0;
}

pg_strong_random()

bool pg_strong_random	(	void *	buf,
		size_t	len
	)

Definition at line 100 of file pg_strong_random.c.

References i.

Referenced by build_client_first_message(), build_server_first_message(), CheckMD5Auth(), drandom(), gen_random_uuid(), init_sess_key(), InitControlFile(), InitProcessGlobals(), mp_px_rand(), pad_eme_pkcs1_v15(), PerformRadiusTransaction(), pg_be_scram_build_secret(), pg_fe_scram_build_secret(), pg_random_bytes(), pgp_s2k_fill(), px_gen_salt(), RandomCancelKey(), set_random_seed(), and write_prefix().

{
    /*
     * When built with OpenSSL, use OpenSSL's RAND_bytes function.
     */
#if defined(USE_OPENSSL_RANDOM)
    int         i;

    /*
     * Check that OpenSSL's CSPRNG has been sufficiently seeded, and if not
     * add more seed data using RAND_poll().  With some older versions of
     * OpenSSL, it may be necessary to call RAND_poll() a number of times.  If
     * RAND_poll() fails to generate seed data within the given amount of
     * retries, subsequent RAND_bytes() calls will fail, but we allow that to
     * happen to let pg_strong_random() callers handle that with appropriate
     * error handling.
     */
#define NUM_RAND_POLL_RETRIES 8

    for (i = 0; i < NUM_RAND_POLL_RETRIES; i++)
    {
        if (RAND_status() == 1)
        {
            /* The CSPRNG is sufficiently seeded */
            break;
        }

        RAND_poll();
    }

    if (RAND_bytes(buf, len) == 1)
        return true;
    return false;

    /*
     * Windows has CryptoAPI for strong cryptographic numbers.
     */
#elif defined(USE_WIN32_RANDOM)
    if (hProvider == 0)
    {
        if (!CryptAcquireContext(&hProvider,
                                 NULL,
                                 MS_DEF_PROV,
                                 PROV_RSA_FULL,
                                 CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
        {
            /*
             * On failure, set back to 0 in case the value was for some reason
             * modified.
             */
            hProvider = 0;
        }
    }
    /* Re-check in case we just retrieved the provider */
    if (hProvider != 0)
    {
        if (CryptGenRandom(hProvider, len, buf))
            return true;
    }
    return false;

    /*
     * Read /dev/urandom ourselves.
     */
#elif defined(USE_DEV_URANDOM)
    if (random_from_file("/dev/urandom", buf, len))
        return true;
    return false;

#else
    /* The autoconf script should not have allowed this */
#error no source of random numbers configured
#endif
}

pg_strsignal()

const char* pg_strsignal

(

int

signum

)

Definition at line 42 of file pgstrsignal.c.

Referenced by log_child_failure(), LogChildExit(), pgarch_archiveXlog(), and wait_result_to_str().

{
    const char *result;

    /*
     * If we have strsignal(3), use that --- but check its result for NULL.
     */
#ifdef HAVE_STRSIGNAL
    result = strsignal(signum);
    if (result == NULL)
        result = "unrecognized signal";
#else

    /*
     * We used to have code here to try to use sys_siglist[] if available.
     * However, it seems that all platforms with sys_siglist[] have also had
     * strsignal() for many years now, so that was just a waste of code.
     */
    result = "(signal names not available on this platform)";
#endif

    return result;
}

pg_tolower()

unsigned char pg_tolower

(

unsigned char

ch

)

Definition at line 122 of file pgstrcasecmp.c.

References IS_HIGHBIT_SET.

Referenced by dir_strcmp(), ParseDateTime(), PGTYPESdate_defmt_asc(), PQfnumber(), processSQLNamePattern(), SB_lower_char(), str_initcap(), str_tolower(), and validateTzEntry().

{
    if (ch >= 'A' && ch <= 'Z')
        ch += 'a' - 'A';
    else if (IS_HIGHBIT_SET(ch) && isupper(ch))
        ch = tolower(ch);
    return ch;
}

pg_toupper()

unsigned char pg_toupper

(

unsigned char

ch

)

Definition at line 105 of file pgstrcasecmp.c.

References IS_HIGHBIT_SET.

Referenced by cash_words(), DetermineTimeZoneAbbrevOffsetInternal(), pg_timezone_abbrevs(), pg_tzset(), str_initcap(), and str_toupper().

{
    if (ch >= 'a' && ch <= 'z')
        ch += 'A' - 'a';
    else if (IS_HIGHBIT_SET(ch) && islower(ch))
        ch = toupper(ch);
    return ch;
}

pg_usleep()

void pg_usleep

(

long

microsec

)

Definition at line 53 of file signal.c.

References Assert, EINTR, pgwin32_dispatch_queued_signals(), pgwin32_signal_event, and select.

Referenced by auth_delay_checks(), AutoVacLauncherMain(), AutoVacWorkerMain(), backend_read_statsfile(), BackendInitialize(), BackgroundWriterMain(), CheckpointerMain(), CheckpointWriteDelay(), ConditionalXactLockTableWait(), CountOtherDBBackends(), CreateCheckPoint(), CustomizableNextWALFileReady(), do_pg_stop_backup(), do_promote(), do_restart(), do_stop(), do_watch(), exec_prog(), FileRead(), FileWrite(), GetMultiXactIdMembers(), InitPostgres(), lazy_truncate_heap(), main(), perform_spin_delay(), pgarch_ArchiverCopyLoop(), pgwin32_recv(), read_local_xlog_page(), recoveryPausesHere(), RegisterSyncRequest(), regression_main(), RequestCheckpoint(), ResolveRecoveryConflictWithDatabase(), ResolveRecoveryConflictWithVirtualXIDs(), RestoreWALFileForRecovery(), ServerLoop(), ShutdownWalRcv(), StartBackgroundWorker(), StartupXLOG(), StreamConnection(), threadRun(), vacuum_delay_point(), wait_for_postmaster(), wait_pid(), WaitExceedsMaxStandbyDelay(), WALDumpOpenSegment(), WalSndWaitStopping(), WalWriterMain(), XactLockTableWait(), and XLogFlush().

{
    Assert(pgwin32_signal_event != NULL);
    if (WaitForSingleObject(pgwin32_signal_event,
                            (microsec < 500 ? 1 : (microsec + 500) / 1000))
        == WAIT_OBJECT_0)
    {
        pgwin32_dispatch_queued_signals();
        errno = EINTR;
        return;
    }
}

pg_vfprintf()

int int pg_vfprintf	(	FILE *	stream,
		const char *	fmt,
		va_list	args
	)

Definition at line 242 of file snprintf.c.

References PrintfTarget::bufend, PrintfTarget::bufptr, PrintfTarget::bufstart, dopr(), PrintfTarget::failed, flushbuffer(), PrintfTarget::nchars, and PrintfTarget::stream.

Referenced by pg_fprintf(), pg_printf(), and pg_vprintf().

{
    PrintfTarget target;
    char        buffer[1024];   /* size is arbitrary */

    if (stream == NULL)
    {
        errno = EINVAL;
        return -1;
    }
    target.bufstart = target.bufptr = buffer;
    target.bufend = buffer + sizeof(buffer);    /* use the whole buffer */
    target.stream = stream;
    target.nchars = 0;
    target.failed = false;
    dopr(&target, fmt, args);
    /* dump any remaining buffer contents */
    flushbuffer(&target);
    return target.failed ? -1 : target.nchars;
}

pg_vprintf()

int int pg_vprintf	(	const char *	fmt,
		va_list	args
	)

Definition at line 276 of file snprintf.c.

References pg_vfprintf(), and generate_unaccent_rules::stdout.

{
    return pg_vfprintf(stdout, fmt, args);
}

pg_vsnprintf()

int pg_vsnprintf	(	char *	str,
		size_t	count,
		const char *	fmt,
		va_list	args
	)

Definition at line 174 of file snprintf.c.

References PrintfTarget::bufend, PrintfTarget::bufptr, PrintfTarget::bufstart, dopr(), PrintfTarget::failed, PrintfTarget::nchars, generate_unaccent_rules::str, and PrintfTarget::stream.

Referenced by pg_snprintf().

{
    PrintfTarget target;
    char        onebyte[1];

    /*
     * C99 allows the case str == NULL when count == 0.  Rather than
     * special-casing this situation further down, we substitute a one-byte
     * local buffer.  Callers cannot tell, since the function result doesn't
     * depend on count.
     */
    if (count == 0)
    {
        str = onebyte;
        count = 1;
    }
    target.bufstart = target.bufptr = str;
    target.bufend = str + count - 1;
    target.stream = NULL;
    target.nchars = 0;
    target.failed = false;
    dopr(&target, fmt, args);
    *(target.bufptr) = '\0';
    return target.failed ? -1 : (target.bufptr - target.bufstart
                                 + target.nchars);
}

pg_vsprintf()

int int pg_vsprintf	(	char *	str,
		const char *	fmt,
		va_list	args
	)

Definition at line 214 of file snprintf.c.

References PrintfTarget::bufend, PrintfTarget::bufptr, PrintfTarget::bufstart, dopr(), PrintfTarget::failed, PrintfTarget::nchars, generate_unaccent_rules::str, and PrintfTarget::stream.

Referenced by pg_sprintf().

{
    PrintfTarget target;

    target.bufstart = target.bufptr = str;
    target.bufend = NULL;
    target.stream = NULL;
    target.nchars = 0;          /* not really used in this case */
    target.failed = false;
    dopr(&target, fmt, args);
    *(target.bufptr) = '\0';
    return target.failed ? -1 : (target.bufptr - target.bufstart
                                 + target.nchars);
}

pgfnames()

char** pgfnames

(

const char *

path

)

Definition at line 37 of file pgfnames.c.

References closedir(), dirent::d_name, opendir(), palloc(), pg_log_warning, pstrdup(), readdir(), and repalloc().

Referenced by convert_sourcefiles_in(), rmtree(), and scan_available_timezones().

{
    DIR        *dir;
    struct dirent *file;
    char      **filenames;
    int         numnames = 0;
    int         fnsize = 200;   /* enough for many small dbs */

    dir = opendir(path);
    if (dir == NULL)
    {
        pg_log_warning("could not open directory \"%s\": %m", path);
        return NULL;
    }

    filenames = (char **) palloc(fnsize * sizeof(char *));

    while (errno = 0, (file = readdir(dir)) != NULL)
    {
        if (strcmp(file->d_name, ".") != 0 && strcmp(file->d_name, "..") != 0)
        {
            if (numnames + 1 >= fnsize)
            {
                fnsize *= 2;
                filenames = (char **) repalloc(filenames,
                                               fnsize * sizeof(char *));
            }
            filenames[numnames++] = pstrdup(file->d_name);
        }
    }

    if (errno)
        pg_log_warning("could not read directory \"%s\": %m", path);

    filenames[numnames] = NULL;

    if (closedir(dir))
        pg_log_warning("could not close directory \"%s\": %m", path);

    return filenames;
}

pgfnames_cleanup()

void pgfnames_cleanup

(

char **

filenames

)

Definition at line 86 of file pgfnames.c.

References fn(), and pfree().

Referenced by convert_sourcefiles_in(), rmtree(), and scan_available_timezones().

{
    char      **fn;

    for (fn = filenames; *fn; fn++)
        pfree(*fn);

    pfree(filenames);
}

pipe_read_line()

char* pipe_read_line	(	char *	cmd,
		char *	line,
		int	maxsize
	)

Definition at line 359 of file exec.c.

References fprintf, pclose_check(), and generate_unaccent_rules::stdout.

Referenced by find_other_exec(), and getRestoreCommand().

{
    FILE       *pgver;

    /* flush output buffers in case popen does not... */
    fflush(stdout);
    fflush(stderr);

    errno = 0;
    if ((pgver = popen(cmd, "r")) == NULL)
    {
        perror("popen failure");
        return NULL;
    }

    errno = 0;
    if (fgets(line, maxsize, pgver) == NULL)
    {
        if (feof(pgver))
            fprintf(stderr, "no data was returned by command \"%s\"\n", cmd);
        else
            perror("fgets failure");
        pclose(pgver);          /* no error checking */
        return NULL;
    }

    if (pclose_check(pgver))
        return NULL;

    return line;
}

pqGethostbyname()

int pqGethostbyname	(	const char *	name,
		struct hostent *	resultbuf,
		char *	buffer,
		size_t	buflen,
		struct hostent **	result,
		int *	herrno
	)

Definition at line 87 of file thread.c.

Referenced by getaddrinfo().

{
#if defined(FRONTEND) && defined(ENABLE_THREAD_SAFETY) && defined(HAVE_GETHOSTBYNAME_R)

    /*
     * broken (well early POSIX draft) gethostbyname_r() which returns 'struct
     * hostent *'
     */
    *result = gethostbyname_r(name, resultbuf, buffer, buflen, herrno);
    return (*result == NULL) ? -1 : 0;
#else

    /* no gethostbyname_r(), just use gethostbyname() */
    *result = gethostbyname(name);

    if (*result != NULL)
        *herrno = h_errno;

    if (*result != NULL)
        return 0;
    else
        return -1;
#endif
}

pqGetpwuid()

int pqGetpwuid	(	uid_t	uid,
		struct passwd *	resultbuf,
		char *	buffer,
		size_t	buflen,
		struct passwd **	result
	)

Definition at line 65 of file thread.c.

Referenced by get_home_path(), pg_fe_getauthname(), PQconnectPoll(), and pqGetHomeDirectory().

{
#if defined(FRONTEND) && defined(ENABLE_THREAD_SAFETY) && defined(HAVE_GETPWUID_R)
    return getpwuid_r(uid, resultbuf, buffer, buflen, result);
#else
    /* no getpwuid_r() available, just use getpwuid() */
    errno = 0;
    *result = getpwuid(uid);
    /* paranoia: ensure we return zero on success */
    return (*result == NULL) ? errno : 0;
#endif
}

pqsignal()

pqsigfunc pqsignal	(	int	signo,
		pqsigfunc	func
	)

Definition at line 170 of file signal.c.

References pg_signal_array, PG_SIGNAL_COUNT, SIG_ERR, SIGALRM, and SIGCHLD.

Referenced by ApplyLauncherMain(), ApplyWorkerMain(), autoprewarm_database_main(), autoprewarm_main(), AutoVacLauncherMain(), AutoVacWorkerMain(), BackendInitialize(), BackgroundWriterMain(), bootstrap_signals(), CheckpointerMain(), disable_sigpipe_trap(), do_start(), initialize_worker_spi(), InitializeTimeouts(), InitPostmasterChild(), main(), OpenPipeStream(), ParallelBackupStart(), ParallelWorkerMain(), pg_crc32c_armv8_available(), PgArchiverMain(), PgstatCollectorMain(), plperl_init_interp(), PostgresMain(), PostmasterDeathSignalInit(), PQprint(), pqsignal_pm(), restore_sigpipe_trap(), setalarm(), setup_cancel_handler(), setup_signals(), sigquit_handler(), sigTermHandler(), StartBackgroundWorker(), StartupProcessMain(), stop_postmaster(), SysLoggerMain(), test_shm_mq_main(), trap_sigint_during_startup(), trapsig(), WalReceiverMain(), WalSndSignals(), and WalWriterMain().

{
    pqsigfunc   prevfunc;

    if (signum >= PG_SIGNAL_COUNT || signum < 0)
        return SIG_ERR;
    prevfunc = pg_signal_array[signum];
    pg_signal_array[signum] = handler;
    return prevfunc;
}

qsort_arg()

void qsort_arg	(	void *	base,
		size_t	nel,
		size_t	elsize,
		qsort_arg_comparator	cmp,
		void *	arg
	)

Definition at line 113 of file qsort_arg.c.

References cmp(), med3(), Min, swap, SWAPINIT, and vecswap.

Referenced by _bt_sort_array_elements(), build_column_frequencies(), build_sorted_items(), compute_range_stats(), compute_scalar_stats(), create_list_bounds(), create_range_bounds(), gbt_num_picksplit(), gbt_var_picksplit(), ginExtractEntries(), isort(), mcelem_array_selec(), ndistinct_for_combination(), range_gist_double_sorting_split(), range_gist_single_sorting_split(), SortAndUniqItems(), spg_range_quad_picksplit(), startScanKey(), statext_mcv_serialize(), tbm_prepare_shared_iterate(), tsvectorrecv(), uniqueentry(), and uniqueifyJsonbObject().

{
    char       *pa,
               *pb,
               *pc,
               *pd,
               *pl,
               *pm,
               *pn;
    size_t      d1,
                d2;
    int         r,
                swaptype,
                presorted;

loop:SWAPINIT(a, es);
    if (n < 7)
    {
        for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
            for (pl = pm; pl > (char *) a && cmp(pl - es, pl, arg) > 0;
                 pl -= es)
                swap(pl, pl - es);
        return;
    }
    presorted = 1;
    for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
    {
        if (cmp(pm - es, pm, arg) > 0)
        {
            presorted = 0;
            break;
        }
    }
    if (presorted)
        return;
    pm = (char *) a + (n / 2) * es;
    if (n > 7)
    {
        pl = (char *) a;
        pn = (char *) a + (n - 1) * es;
        if (n > 40)
        {
            size_t      d = (n / 8) * es;

            pl = med3(pl, pl + d, pl + 2 * d, cmp, arg);
            pm = med3(pm - d, pm, pm + d, cmp, arg);
            pn = med3(pn - 2 * d, pn - d, pn, cmp, arg);
        }
        pm = med3(pl, pm, pn, cmp, arg);
    }
    swap(a, pm);
    pa = pb = (char *) a + es;
    pc = pd = (char *) a + (n - 1) * es;
    for (;;)
    {
        while (pb <= pc && (r = cmp(pb, a, arg)) <= 0)
        {
            if (r == 0)
            {
                swap(pa, pb);
                pa += es;
            }
            pb += es;
        }
        while (pb <= pc && (r = cmp(pc, a, arg)) >= 0)
        {
            if (r == 0)
            {
                swap(pc, pd);
                pd -= es;
            }
            pc -= es;
        }
        if (pb > pc)
            break;
        swap(pb, pc);
        pb += es;
        pc -= es;
    }
    pn = (char *) a + n * es;
    d1 = Min(pa - (char *) a, pb - pa);
    vecswap(a, pb - d1, d1);
    d1 = Min(pd - pc, pn - pd - es);
    vecswap(pb, pn - d1, d1);
    d1 = pb - pa;
    d2 = pd - pc;
    if (d1 <= d2)
    {
        /* Recurse on left partition, then iterate on right partition */
        if (d1 > es)
            qsort_arg(a, d1 / es, es, cmp, arg);
        if (d2 > es)
        {
            /* Iterate rather than recurse to save stack space */
            /* qsort_arg(pn - d2, d2 / es, es, cmp, arg); */
            a = pn - d2;
            n = d2 / es;
            goto loop;
        }
    }
    else
    {
        /* Recurse on right partition, then iterate on left partition */
        if (d2 > es)
            qsort_arg(pn - d2, d2 / es, es, cmp, arg);
        if (d1 > es)
        {
            /* Iterate rather than recurse to save stack space */
            /* qsort_arg(a, d1 / es, es, cmp, arg); */
            n = d1 / es;
            goto loop;
        }
    }
}

random()

long random

(

void

)

Definition at line 22 of file random.c.

References pg_lrand48().

Referenced by _bt_findinsertloc(), acquire_sample_rows(), anl_init_selection_state(), anl_random_fract(), bt_check_every_level(), check_log_duration(), choose_dsm_implementation(), create_and_test_bloom(), dsm_create(), dsm_postmaster_startup(), ExecInitSampleScan(), explain_ExecutorStart(), get_normal_pair(), get_random_uint64(), GetPermutation(), gistchoose(), make_main_region_dsm_handle(), perform_spin_delay(), prepare_buf(), reservoir_init_selection_state(), SetTempTablespaces(), spgdoinsert(), StartTransaction(), and testdelete().

{
    return pg_lrand48();
}

rmtree()

bool rmtree	(	const char *	path,
		bool	rmtopdir
	)

Definition at line 42 of file rmtree.c.

References filename, lstat, MAXPGPATH, pg_log_warning, pgfnames(), pgfnames_cleanup(), rmtree(), S_ISDIR, snprintf, and stat::st_mode.

Referenced by cleanup_directories_atexit(), convert_sourcefiles_in(), create_tablespace_directories(), CreateSlotOnDisk(), dbase_redo(), movedb(), movedb_failure_callback(), regression_main(), remove_dbtablespaces(), remove_new_subdir(), ReplicationSlotDropPtr(), RestoreSlotFromDisk(), rmtree(), and StartupReplicationSlots().

{
    bool        result = true;
    char        pathbuf[MAXPGPATH];
    char      **filenames;
    char      **filename;
    struct stat statbuf;

    /*
     * we copy all the names out of the directory before we start modifying
     * it.
     */
    filenames = pgfnames(path);

    if (filenames == NULL)
        return false;

    /* now we have the names we can start removing things */
    for (filename = filenames; *filename; filename++)
    {
        snprintf(pathbuf, MAXPGPATH, "%s/%s", path, *filename);

        /*
         * It's ok if the file is not there anymore; we were just about to
         * delete it anyway.
         *
         * This is not an academic possibility. One scenario where this
         * happens is when bgwriter has a pending unlink request for a file in
         * a database that's being dropped. In dropdb(), we call
         * ForgetDatabaseSyncRequests() to flush out any such pending unlink
         * requests, but because that's asynchronous, it's not guaranteed that
         * the bgwriter receives the message in time.
         */
        if (lstat(pathbuf, &statbuf) != 0)
        {
            if (errno != ENOENT)
            {
                pg_log_warning("could not stat file or directory \"%s\": %m",
                               pathbuf);
                result = false;
            }
            continue;
        }

        if (S_ISDIR(statbuf.st_mode))
        {
            /* call ourselves recursively for a directory */
            if (!rmtree(pathbuf, true))
            {
                /* we already reported the error */
                result = false;
            }
        }
        else
        {
            if (unlink(pathbuf) != 0)
            {
                if (errno != ENOENT)
                {
                    pg_log_warning("could not remove file or directory \"%s\": %m",
                                   pathbuf);
                    result = false;
                }
            }
        }
    }

    if (rmtopdir)
    {
        if (rmdir(path) != 0)
        {
            pg_log_warning("could not remove file or directory \"%s\": %m",
                           path);
            result = false;
        }
    }

    pgfnames_cleanup(filenames);

    return result;
}

set_pglocale_pgservice()

void set_pglocale_pgservice	(	const char *	argv0,
		const char *	app
	)

Definition at line 434 of file exec.c.

References _, AddUserToTokenDacl(), canonicalize_path(), cleanup(), errcode(), find_my_exec(), get_etc_path(), get_locale_path(), i, log_error, MAXPGPATH, my_exec_path, PG_TEXTDOMAIN, putenv, setlocale, and snprintf.

Referenced by main(), and regression_main().

{
    char        path[MAXPGPATH];
    char        my_exec_path[MAXPGPATH];
    char        env_path[MAXPGPATH + sizeof("PGSYSCONFDIR=")];  /* longer than
                                                                 * PGLOCALEDIR */
    char       *dup_path;

    /* don't set LC_ALL in the backend */
    if (strcmp(app, PG_TEXTDOMAIN("postgres")) != 0)
    {
        setlocale(LC_ALL, "");

        /*
         * One could make a case for reproducing here PostmasterMain()'s test
         * for whether the process is multithreaded.  Unlike the postmaster,
         * no frontend program calls sigprocmask() or otherwise provides for
         * mutual exclusion between signal handlers.  While frontends using
         * fork(), if multithreaded, are formally exposed to undefined
         * behavior, we have not witnessed a concrete bug.  Therefore,
         * complaining about multithreading here may be mere pedantry.
         */
    }

    if (find_my_exec(argv0, my_exec_path) < 0)
        return;

#ifdef ENABLE_NLS
    get_locale_path(my_exec_path, path);
    bindtextdomain(app, path);
    textdomain(app);

    if (getenv("PGLOCALEDIR") == NULL)
    {
        /* set for libpq to use */
        snprintf(env_path, sizeof(env_path), "PGLOCALEDIR=%s", path);
        canonicalize_path(env_path + 12);
        dup_path = strdup(env_path);
        if (dup_path)
            putenv(dup_path);
    }
#endif

    if (getenv("PGSYSCONFDIR") == NULL)
    {
        get_etc_path(my_exec_path, path);

        /* set for libpq to use */
        snprintf(env_path, sizeof(env_path), "PGSYSCONFDIR=%s", path);
        canonicalize_path(env_path + 13);
        dup_path = strdup(env_path);
        if (dup_path)
            putenv(dup_path);
    }
}

srandom()

void srandom

(

unsigned int

seed

)

Definition at line 22 of file srandom.c.

References pg_srand48().

Referenced by choose_dsm_implementation(), InitProcessGlobals(), and update_spins_per_delay().

{
    pg_srand48((long int) seed);
}

strlcat()

size_t strlcat	(	char *	dst,
		const char *	src,
		size_t	siz
	)

Definition at line 33 of file strlcat.c.

Referenced by _PrepParallelRestore(), CreateLockFile(), get_configdata(), get_prompt(), and validate_exec().

{
    char       *d = dst;
    const char *s = src;
    size_t      n = siz;
    size_t      dlen;

    /* Find the end of dst and adjust bytes left but don't go past end */
    while (n-- != 0 && *d != '\0')
        d++;
    dlen = d - dst;
    n = siz - dlen;

    if (n == 0)
        return (dlen + strlen(s));
    while (*s != '\0')
    {
        if (n != 1)
        {
            *d++ = *s;
            n--;
        }
        s++;
    }
    *d = '\0';

    return (dlen + (s - src));  /* count does not include NUL */
}

strlcpy()

size_t strlcpy	(	char *	dst,
		const char *	src,
		size_t	siz
	)

Definition at line 45 of file strlcpy.c.

Referenced by _tarGetHeader(), abstime2tm(), AuxiliaryProcessMain(), BaseBackup(), be_tls_get_peer_issuer_name(), be_tls_get_peer_serial(), be_tls_get_peer_subject_name(), ChooseConstraintName(), ChooseExtendedStatisticName(), ChooseExtendedStatisticNameAddition(), ChooseForeignKeyConstraintNameAddition(), ChooseIndexNameAddition(), ChooseRelationName(), CleanupPriorWALFiles(), ConvertTimeZoneAbbrevs(), create_script_for_old_cluster_deletion(), createNewConnection(), DCH_cache_getnew(), DefineRelation(), descriptor_variable(), DetermineTimeZoneAbbrevOffsetInternal(), ensureCleanShutdown(), ExecuteRecoveryCommand(), expand_tilde(), fetch_fp_info(), find_in_dynamic_libpath(), find_my_exec(), find_other_exec_or_die(), from_char_parse_int_len(), fsync_parent_path(), get_configdata(), get_control_data(), get_home_path(), get_prompt(), get_tablespace_mapping(), getRestoreCommand(), gnuish_strerror_r(), hash_create(), identify_system_timezone(), initialize_SSL(), InitPostgres(), internal_cancel(), isolation_init(), join_path_components(), KeepFileRestoredFromArchive(), logfile_getname(), main(), make_oper_cache_key(), make_relative_path(), mdsyncfiletag(), mdunlinkfiletag(), NUM_cache_getnew(), ParseAbortRecord(), parseCommandLine(), ParseCommitRecord(), ParseLongOption(), parseServiceInfo(), pg_getnameinfo_all(), pg_GSS_error_int(), pg_open_tzfile(), pg_perm_setlocale(), pg_stat_get_wal_receiver(), pg_timezone_abbrevs(), pg_TZDIR(), pg_tzenumerate_next(), pgarch_archiveXlog(), pgstat_bestart(), pgstat_send_archiver(), PostmasterMarkPIDForWorkerNotify(), postprocess_sql_command(), PQcancel(), pqGetErrorNotice3(), pqGetHomeDirectory(), pqParseInput2(), pqParseInput3(), PQrequestCancel(), process_file(), process_postgres_switches(), px_crypt_des(), ReceiveAndUnpackTarFile(), recoveryStopsAfter(), RequestNamedLWLockTranche(), RequestXLogStreaming(), resolve_symlinks(), results_differ(), rot13_passphrase(), scan_available_timezones(), scan_directory(), scan_directory_ci(), SerializeLibraryState(), set_ps_display(), setup_bin_paths(), SetWALFileNameForCleanup(), SimpleLruInit(), SSLerrmessage(), tar_close(), tarCreateHeader(), timestamptz_to_str(), uuid_generate_internal(), validate_exec(), WalReceiverMain(), and XLogRestorePoint().

{
    char       *d = dst;
    const char *s = src;
    size_t      n = siz;

    /* Copy as many bytes as will fit */
    if (n != 0)
    {
        while (--n != 0)
        {
            if ((*d++ = *s++) == '\0')
                break;
        }
    }

    /* Not enough room in dst, add NUL and traverse rest of src */
    if (n == 0)
    {
        if (siz != 0)
            *d = '\0';          /* NUL-terminate dst */
        while (*s++)
            ;
    }

    return (s - src - 1);       /* count does not include NUL */
}

strnlen()

size_t strnlen	(	const char *	str,
		size_t	maxlen
	)

Definition at line 26 of file strnlen.c.

References generate_unaccent_rules::str.

Referenced by fmtstr(), pnstrdup(), and xml_is_document().

{
    const char *p = str;

    while (maxlen-- > 0 && *p)
        p++;
    return p - str;
}

strtof()

float strtof	(	const char *	nptr,
		char **	endptr
	)

Definition at line 28 of file strtof.c.

Referenced by float4in().

{
    int         caller_errno = errno;
    double      dresult;
    float       fresult;

    errno = 0;
    dresult = strtod(nptr, endptr);
    fresult = (float) dresult;

    if (errno == 0)
    {
        /*
         * Value might be in-range for double but not float.
         */
        if (dresult != 0 && fresult == 0)
            caller_errno = ERANGE;  /* underflow */
        if (!isinf(dresult) && isinf(fresult))
            caller_errno = ERANGE;  /* overflow */
    }
    else
        caller_errno = errno;

    errno = caller_errno;
    return fresult;
}

unsetenv()

void unsetenv

(

const char *

name

)

Definition at line 20 of file unsetenv.c.

References malloc, putenv, and sprintf.

{
    char       *envstr;

    if (getenv(name) == NULL)
        return;                 /* no work */

    /*
     * The technique embodied here works if libc follows the Single Unix Spec
     * and actually uses the storage passed to putenv() to hold the environ
     * entry.  When we clobber the entry in the second step we are ensuring
     * that we zap the actual environ member.  However, there are some libc
     * implementations (notably recent BSDs) that do not obey SUS but copy the
     * presented string.  This method fails on such platforms.  Hopefully all
     * such platforms have unsetenv() and thus won't be using this hack. See:
     * http://www.greenend.org.uk/rjk/2008/putenv.html
     *
     * Note that repeatedly setting and unsetting a var using this code will
     * leak memory.
     */

    envstr = (char *) malloc(strlen(name) + 2);
    if (!envstr)                /* not much we can do if no memory */
        return;

    /* Override the existing setting by forcibly defining the var */
    sprintf(envstr, "%s=", name);
    putenv(envstr);

    /* Now we can clobber the variable definition this way: */
    strcpy(envstr, "=");

    /*
     * This last putenv cleans up if we have multiple zero-length names as a
     * result of unsetting multiple things.
     */
    putenv(envstr);
}

wait_result_is_any_signal()

bool wait_result_is_any_signal	(	int	exit_status,
		bool	include_command_not_found
	)

Definition at line 111 of file wait_error.c.

References WEXITSTATUS, WIFEXITED, and WIFSIGNALED.

Referenced by ExecuteRecoveryCommand(), pgarch_archiveXlog(), and RestoreArchivedFile().

{
    if (WIFSIGNALED(exit_status))
        return true;
    if (WIFEXITED(exit_status) &&
        WEXITSTATUS(exit_status) > (include_command_not_found ? 125 : 128))
        return true;
    return false;
}

wait_result_is_signal()

bool wait_result_is_signal	(	int	exit_status,
		int	signum
	)

Definition at line 92 of file wait_error.c.

References WEXITSTATUS, WIFEXITED, WIFSIGNALED, and WTERMSIG.

Referenced by ClosePipeToProgram(), and RestoreArchivedFile().

{
    if (WIFSIGNALED(exit_status) && WTERMSIG(exit_status) == signum)
        return true;
    if (WIFEXITED(exit_status) && WEXITSTATUS(exit_status) == 128 + signum)
        return true;
    return false;
}

wait_result_to_str()

char* wait_result_to_str

(

int

exit_status

)

Definition at line 32 of file wait_error.c.

References _, pg_strsignal(), pstrdup(), snprintf, generate_unaccent_rules::str, WEXITSTATUS, WIFEXITED, WIFSIGNALED, and WTERMSIG.

Referenced by BaseBackup(), ClosePipeToProgram(), do_copy(), ExecuteRecoveryCommand(), pclose_check(), RestoreArchivedFile(), and run_ssl_passphrase_command().

{
    char        str[512];

    if (WIFEXITED(exitstatus))
    {
        /*
         * Give more specific error message for some common exit codes that
         * have a special meaning in shells.
         */
        switch (WEXITSTATUS(exitstatus))
        {
            case 126:
                snprintf(str, sizeof(str), _("command not executable"));
                break;

            case 127:
                snprintf(str, sizeof(str), _("command not found"));
                break;

            default:
                snprintf(str, sizeof(str),
                         _("child process exited with exit code %d"),
                         WEXITSTATUS(exitstatus));
        }
    }
    else if (WIFSIGNALED(exitstatus))
    {
#if defined(WIN32)
        snprintf(str, sizeof(str),
                 _("child process was terminated by exception 0x%X"),
                 WTERMSIG(exitstatus));
#else
        snprintf(str, sizeof(str),
                 _("child process was terminated by signal %d: %s"),
                 WTERMSIG(exitstatus), pg_strsignal(WTERMSIG(exitstatus)));
#endif
    }
    else
        snprintf(str, sizeof(str),
                 _("child process exited with unrecognized status %d"),
                 exitstatus);

    return pstrdup(str);
}