PostgreSQL Source Code  git master
initdb.c
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1 /*-------------------------------------------------------------------------
2  *
3  * initdb --- initialize a PostgreSQL installation
4  *
5  * initdb creates (initializes) a PostgreSQL database cluster (site,
6  * instance, installation, whatever). A database cluster is a
7  * collection of PostgreSQL databases all managed by the same server.
8  *
9  * To create the database cluster, we create the directory that contains
10  * all its data, create the files that hold the global tables, create
11  * a few other control files for it, and create three databases: the
12  * template databases "template0" and "template1", and a default user
13  * database "postgres".
14  *
15  * The template databases are ordinary PostgreSQL databases. template0
16  * is never supposed to change after initdb, whereas template1 can be
17  * changed to add site-local standard data. Either one can be copied
18  * to produce a new database.
19  *
20  * For largely-historical reasons, the template1 database is the one built
21  * by the basic bootstrap process. After it is complete, template0 and
22  * the default database, postgres, are made just by copying template1.
23  *
24  * To create template1, we run the postgres (backend) program in bootstrap
25  * mode and feed it data from the postgres.bki library file. After this
26  * initial bootstrap phase, some additional stuff is created by normal
27  * SQL commands fed to a standalone backend. Some of those commands are
28  * just embedded into this program (yeah, it's ugly), but larger chunks
29  * are taken from script files.
30  *
31  *
32  * Note:
33  * The program has some memory leakage - it isn't worth cleaning it up.
34  *
35  * This is a C implementation of the previous shell script for setting up a
36  * PostgreSQL cluster location, and should be highly compatible with it.
37  * author of C translation: Andrew Dunstan mailto:andrew@dunslane.net
38  *
39  * This code is released under the terms of the PostgreSQL License.
40  *
41  * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
42  * Portions Copyright (c) 1994, Regents of the University of California
43  *
44  * src/bin/initdb/initdb.c
45  *
46  *-------------------------------------------------------------------------
47  */
48 
49 #include "postgres_fe.h"
50 
51 #include <dirent.h>
52 #include <fcntl.h>
53 #include <sys/stat.h>
54 #include <unistd.h>
55 #include <signal.h>
56 #include <time.h>
57 
58 #ifdef HAVE_SHM_OPEN
59 #include "sys/mman.h"
60 #endif
61 
62 #include "access/xlog_internal.h"
63 #include "catalog/pg_authid_d.h"
64 #include "catalog/pg_class_d.h" /* pgrminclude ignore */
65 #include "catalog/pg_collation_d.h"
66 #include "common/file_perm.h"
67 #include "common/file_utils.h"
68 #include "common/logging.h"
70 #include "common/string.h"
71 #include "common/username.h"
72 #include "fe_utils/string_utils.h"
73 #include "getaddrinfo.h"
74 #include "getopt_long.h"
75 #include "mb/pg_wchar.h"
76 #include "miscadmin.h"
77 
78 
79 /* Ideally this would be in a .h file, but it hardly seems worth the trouble */
80 extern const char *select_default_timezone(const char *share_path);
81 
82 static const char *const auth_methods_host[] = {
83  "trust", "reject", "scram-sha-256", "md5", "password", "ident", "radius",
84 #ifdef ENABLE_GSS
85  "gss",
86 #endif
87 #ifdef ENABLE_SSPI
88  "sspi",
89 #endif
90 #ifdef USE_PAM
91  "pam", "pam ",
92 #endif
93 #ifdef USE_BSD_AUTH
94  "bsd",
95 #endif
96 #ifdef USE_LDAP
97  "ldap",
98 #endif
99 #ifdef USE_SSL
100  "cert",
101 #endif
102  NULL
103 };
104 static const char *const auth_methods_local[] = {
105  "trust", "reject", "scram-sha-256", "md5", "password", "peer", "radius",
106 #ifdef USE_PAM
107  "pam", "pam ",
108 #endif
109 #ifdef USE_BSD_AUTH
110  "bsd",
111 #endif
112 #ifdef USE_LDAP
113  "ldap",
114 #endif
115  NULL
116 };
117 
118 /*
119  * these values are passed in by makefile defines
120  */
121 static char *share_path = NULL;
122 
123 /* values to be obtained from arguments */
124 static char *pg_data = NULL;
125 static char *encoding = NULL;
126 static char *locale = NULL;
127 static char *lc_collate = NULL;
128 static char *lc_ctype = NULL;
129 static char *lc_monetary = NULL;
130 static char *lc_numeric = NULL;
131 static char *lc_time = NULL;
132 static char *lc_messages = NULL;
133 static const char *default_text_search_config = NULL;
134 static char *username = NULL;
135 static bool pwprompt = false;
136 static char *pwfilename = NULL;
137 static char *superuser_password = NULL;
138 static const char *authmethodhost = NULL;
139 static const char *authmethodlocal = NULL;
140 static bool debug = false;
141 static bool noclean = false;
142 static bool noinstructions = false;
143 static bool do_sync = true;
144 static bool sync_only = false;
145 static bool show_setting = false;
146 static bool data_checksums = false;
147 static char *xlog_dir = NULL;
148 static char *str_wal_segment_size_mb = NULL;
150 
151 
152 /* internal vars */
153 static const char *progname;
154 static int encodingid;
155 static char *bki_file;
156 static char *hba_file;
157 static char *ident_file;
158 static char *conf_file;
159 static char *dictionary_file;
160 static char *info_schema_file;
161 static char *features_file;
164 static char *system_views_file;
165 static bool success = false;
166 static bool made_new_pgdata = false;
167 static bool found_existing_pgdata = false;
168 static bool made_new_xlogdir = false;
169 static bool found_existing_xlogdir = false;
170 static char infoversion[100];
171 static bool caught_signal = false;
172 static bool output_failed = false;
173 static int output_errno = 0;
174 static char *pgdata_native;
175 
176 /* defaults */
177 static int n_connections = 10;
178 static int n_buffers = 50;
179 static const char *dynamic_shared_memory_type = NULL;
180 static const char *default_timezone = NULL;
181 
182 /*
183  * Warning messages for authentication methods
184  */
185 #define AUTHTRUST_WARNING \
186 "# CAUTION: Configuring the system for local \"trust\" authentication\n" \
187 "# allows any local user to connect as any PostgreSQL user, including\n" \
188 "# the database superuser. If you do not trust all your local users,\n" \
189 "# use another authentication method.\n"
190 static bool authwarning = false;
191 
192 /*
193  * Centralized knowledge of switches to pass to backend
194  *
195  * Note: we run the backend with -F (fsync disabled) and then do a single
196  * pass of fsync'ing at the end. This is faster than fsync'ing each step.
197  *
198  * Note: in the shell-script version, we also passed PGDATA as a -D switch,
199  * but here it is more convenient to pass it as an environment variable
200  * (no quoting to worry about).
201  */
202 static const char *boot_options = "-F";
203 static const char *backend_options = "--single -F -O -j -c search_path=pg_catalog -c exit_on_error=true";
204 
205 /* Additional switches to pass to backend (either boot or standalone) */
206 static char *extra_options = "";
207 
208 static const char *const subdirs[] = {
209  "global",
210  "pg_wal/archive_status",
211  "pg_commit_ts",
212  "pg_dynshmem",
213  "pg_notify",
214  "pg_serial",
215  "pg_snapshots",
216  "pg_subtrans",
217  "pg_twophase",
218  "pg_multixact",
219  "pg_multixact/members",
220  "pg_multixact/offsets",
221  "base",
222  "base/1",
223  "pg_replslot",
224  "pg_tblspc",
225  "pg_stat",
226  "pg_stat_tmp",
227  "pg_xact",
228  "pg_logical",
229  "pg_logical/snapshots",
230  "pg_logical/mappings"
231 };
232 
233 
234 /* path to 'initdb' binary directory */
235 static char bin_path[MAXPGPATH];
236 static char backend_exec[MAXPGPATH];
237 
238 static char **replace_token(char **lines,
239  const char *token, const char *replacement);
240 
241 #ifndef HAVE_UNIX_SOCKETS
242 static char **filter_lines_with_token(char **lines, const char *token);
243 #endif
244 static char **readfile(const char *path);
245 static void writefile(char *path, char **lines);
246 static FILE *popen_check(const char *command, const char *mode);
247 static char *get_id(void);
248 static int get_encoding_id(const char *encoding_name);
249 static void set_input(char **dest, const char *filename);
250 static void check_input(char *path);
251 static void write_version_file(const char *extrapath);
252 static void set_null_conf(void);
253 static void test_config_settings(void);
254 static void setup_config(void);
255 static void bootstrap_template1(void);
256 static void setup_auth(FILE *cmdfd);
257 static void get_su_pwd(void);
258 static void setup_depend(FILE *cmdfd);
259 static void setup_run_file(FILE *cmdfd, const char *filename);
260 static void setup_description(FILE *cmdfd);
261 static void setup_collation(FILE *cmdfd);
262 static void setup_privileges(FILE *cmdfd);
263 static void set_info_version(void);
264 static void setup_schema(FILE *cmdfd);
265 static void load_plpgsql(FILE *cmdfd);
266 static void vacuum_db(FILE *cmdfd);
267 static void make_template0(FILE *cmdfd);
268 static void make_postgres(FILE *cmdfd);
269 static void trapsig(int signum);
270 static void check_ok(void);
271 static char *escape_quotes(const char *src);
272 static char *escape_quotes_bki(const char *src);
273 static int locale_date_order(const char *locale);
274 static void check_locale_name(int category, const char *locale,
275  char **canonname);
276 static bool check_locale_encoding(const char *locale, int encoding);
277 static void setlocales(void);
278 static void usage(const char *progname);
279 void setup_pgdata(void);
280 void setup_bin_paths(const char *argv0);
281 void setup_data_file_paths(void);
282 void setup_locale_encoding(void);
283 void setup_signals(void);
284 void setup_text_search(void);
285 void create_data_directory(void);
286 void create_xlog_or_symlink(void);
287 void warn_on_mount_point(int error);
288 void initialize_data_directory(void);
289 
290 /*
291  * macros for running pipes to postgres
292  */
293 #define PG_CMD_DECL char cmd[MAXPGPATH]; FILE *cmdfd
294 
295 #define PG_CMD_OPEN \
296 do { \
297  cmdfd = popen_check(cmd, "w"); \
298  if (cmdfd == NULL) \
299  exit(1); /* message already printed by popen_check */ \
300 } while (0)
301 
302 #define PG_CMD_CLOSE \
303 do { \
304  if (pclose_check(cmdfd)) \
305  exit(1); /* message already printed by pclose_check */ \
306 } while (0)
307 
308 #define PG_CMD_PUTS(line) \
309 do { \
310  if (fputs(line, cmdfd) < 0 || fflush(cmdfd) < 0) \
311  output_failed = true, output_errno = errno; \
312 } while (0)
313 
314 #define PG_CMD_PRINTF(fmt, ...) \
315 do { \
316  if (fprintf(cmdfd, fmt, __VA_ARGS__) < 0 || fflush(cmdfd) < 0) \
317  output_failed = true, output_errno = errno; \
318 } while (0)
319 
320 /*
321  * Escape single quotes and backslashes, suitably for insertions into
322  * configuration files or SQL E'' strings.
323  */
324 static char *
325 escape_quotes(const char *src)
326 {
327  char *result = escape_single_quotes_ascii(src);
328 
329  if (!result)
330  {
331  pg_log_error("out of memory");
332  exit(1);
333  }
334  return result;
335 }
336 
337 /*
338  * Escape a field value to be inserted into the BKI data.
339  * Run the value through escape_quotes (which will be inverted
340  * by the backend's DeescapeQuotedString() function), then wrap
341  * the value in single quotes, even if that isn't strictly necessary.
342  */
343 static char *
344 escape_quotes_bki(const char *src)
345 {
346  char *result;
347  char *data = escape_quotes(src);
348  char *resultp;
349  char *datap;
350 
351  result = (char *) pg_malloc(strlen(data) + 3);
352  resultp = result;
353  *resultp++ = '\'';
354  for (datap = data; *datap; datap++)
355  *resultp++ = *datap;
356  *resultp++ = '\'';
357  *resultp = '\0';
358 
359  free(data);
360  return result;
361 }
362 
363 /*
364  * make a copy of the array of lines, with token replaced by replacement
365  * the first time it occurs on each line.
366  *
367  * This does most of what sed was used for in the shell script, but
368  * doesn't need any regexp stuff.
369  */
370 static char **
371 replace_token(char **lines, const char *token, const char *replacement)
372 {
373  int numlines = 1;
374  int i;
375  char **result;
376  int toklen,
377  replen,
378  diff;
379 
380  for (i = 0; lines[i]; i++)
381  numlines++;
382 
383  result = (char **) pg_malloc(numlines * sizeof(char *));
384 
385  toklen = strlen(token);
386  replen = strlen(replacement);
387  diff = replen - toklen;
388 
389  for (i = 0; i < numlines; i++)
390  {
391  char *where;
392  char *newline;
393  int pre;
394 
395  /* just copy pointer if NULL or no change needed */
396  if (lines[i] == NULL || (where = strstr(lines[i], token)) == NULL)
397  {
398  result[i] = lines[i];
399  continue;
400  }
401 
402  /* if we get here a change is needed - set up new line */
403 
404  newline = (char *) pg_malloc(strlen(lines[i]) + diff + 1);
405 
406  pre = where - lines[i];
407 
408  memcpy(newline, lines[i], pre);
409 
410  memcpy(newline + pre, replacement, replen);
411 
412  strcpy(newline + pre + replen, lines[i] + pre + toklen);
413 
414  result[i] = newline;
415  }
416 
417  return result;
418 }
419 
420 /*
421  * make a copy of lines without any that contain the token
422  *
423  * a sort of poor man's grep -v
424  */
425 #ifndef HAVE_UNIX_SOCKETS
426 static char **
427 filter_lines_with_token(char **lines, const char *token)
428 {
429  int numlines = 1;
430  int i,
431  src,
432  dst;
433  char **result;
434 
435  for (i = 0; lines[i]; i++)
436  numlines++;
437 
438  result = (char **) pg_malloc(numlines * sizeof(char *));
439 
440  for (src = 0, dst = 0; src < numlines; src++)
441  {
442  if (lines[src] == NULL || strstr(lines[src], token) == NULL)
443  result[dst++] = lines[src];
444  }
445 
446  return result;
447 }
448 #endif
449 
450 /*
451  * get the lines from a text file
452  */
453 static char **
454 readfile(const char *path)
455 {
456  char **result;
457  FILE *infile;
458  StringInfoData line;
459  int maxlines;
460  int n;
461 
462  if ((infile = fopen(path, "r")) == NULL)
463  {
464  pg_log_error("could not open file \"%s\" for reading: %m", path);
465  exit(1);
466  }
467 
468  initStringInfo(&line);
469 
470  maxlines = 1024;
471  result = (char **) pg_malloc(maxlines * sizeof(char *));
472 
473  n = 0;
474  while (pg_get_line_buf(infile, &line))
475  {
476  /* make sure there will be room for a trailing NULL pointer */
477  if (n >= maxlines - 1)
478  {
479  maxlines *= 2;
480  result = (char **) pg_realloc(result, maxlines * sizeof(char *));
481  }
482 
483  result[n++] = pg_strdup(line.data);
484  }
485  result[n] = NULL;
486 
487  pfree(line.data);
488 
489  fclose(infile);
490 
491  return result;
492 }
493 
494 /*
495  * write an array of lines to a file
496  *
497  * This is only used to write text files. Use fopen "w" not PG_BINARY_W
498  * so that the resulting configuration files are nicely editable on Windows.
499  */
500 static void
501 writefile(char *path, char **lines)
502 {
503  FILE *out_file;
504  char **line;
505 
506  if ((out_file = fopen(path, "w")) == NULL)
507  {
508  pg_log_error("could not open file \"%s\" for writing: %m", path);
509  exit(1);
510  }
511  for (line = lines; *line != NULL; line++)
512  {
513  if (fputs(*line, out_file) < 0)
514  {
515  pg_log_error("could not write file \"%s\": %m", path);
516  exit(1);
517  }
518  free(*line);
519  }
520  if (fclose(out_file))
521  {
522  pg_log_error("could not write file \"%s\": %m", path);
523  exit(1);
524  }
525 }
526 
527 /*
528  * Open a subcommand with suitable error messaging
529  */
530 static FILE *
531 popen_check(const char *command, const char *mode)
532 {
533  FILE *cmdfd;
534 
535  fflush(stdout);
536  fflush(stderr);
537  errno = 0;
538  cmdfd = popen(command, mode);
539  if (cmdfd == NULL)
540  pg_log_error("could not execute command \"%s\": %m", command);
541  return cmdfd;
542 }
543 
544 /*
545  * clean up any files we created on failure
546  * if we created the data directory remove it too
547  */
548 static void
550 {
551  if (success)
552  return;
553 
554  if (!noclean)
555  {
556  if (made_new_pgdata)
557  {
558  pg_log_info("removing data directory \"%s\"", pg_data);
559  if (!rmtree(pg_data, true))
560  pg_log_error("failed to remove data directory");
561  }
562  else if (found_existing_pgdata)
563  {
564  pg_log_info("removing contents of data directory \"%s\"",
565  pg_data);
566  if (!rmtree(pg_data, false))
567  pg_log_error("failed to remove contents of data directory");
568  }
569 
570  if (made_new_xlogdir)
571  {
572  pg_log_info("removing WAL directory \"%s\"", xlog_dir);
573  if (!rmtree(xlog_dir, true))
574  pg_log_error("failed to remove WAL directory");
575  }
576  else if (found_existing_xlogdir)
577  {
578  pg_log_info("removing contents of WAL directory \"%s\"", xlog_dir);
579  if (!rmtree(xlog_dir, false))
580  pg_log_error("failed to remove contents of WAL directory");
581  }
582  /* otherwise died during startup, do nothing! */
583  }
584  else
585  {
587  pg_log_info("data directory \"%s\" not removed at user's request",
588  pg_data);
589 
591  pg_log_info("WAL directory \"%s\" not removed at user's request",
592  xlog_dir);
593  }
594 }
595 
596 /*
597  * find the current user
598  *
599  * on unix make sure it isn't root
600  */
601 static char *
602 get_id(void)
603 {
604  const char *username;
605 
606 #ifndef WIN32
607  if (geteuid() == 0) /* 0 is root's uid */
608  {
609  pg_log_error("cannot be run as root");
610  fprintf(stderr,
611  _("Please log in (using, e.g., \"su\") as the (unprivileged) user that will\n"
612  "own the server process.\n"));
613  exit(1);
614  }
615 #endif
616 
617  username = get_user_name_or_exit(progname);
618 
619  return pg_strdup(username);
620 }
621 
622 static char *
624 {
625  char result[20];
626 
627  sprintf(result, "%d", enc);
628  return pg_strdup(result);
629 }
630 
631 /*
632  * get the encoding id for a given encoding name
633  */
634 static int
635 get_encoding_id(const char *encoding_name)
636 {
637  int enc;
638 
639  if (encoding_name && *encoding_name)
640  {
641  if ((enc = pg_valid_server_encoding(encoding_name)) >= 0)
642  return enc;
643  }
644  pg_log_error("\"%s\" is not a valid server encoding name",
645  encoding_name ? encoding_name : "(null)");
646  exit(1);
647 }
648 
649 /*
650  * Support for determining the best default text search configuration.
651  * We key this off the first part of LC_CTYPE (ie, the language name).
652  */
654 {
655  const char *tsconfname;
656  const char *langname;
657 };
658 
660 {
661  {"arabic", "ar"},
662  {"arabic", "Arabic"},
663  {"armenian", "hy"},
664  {"armenian", "Armenian"},
665  {"basque", "eu"},
666  {"basque", "Basque"},
667  {"catalan", "ca"},
668  {"catalan", "Catalan"},
669  {"danish", "da"},
670  {"danish", "Danish"},
671  {"dutch", "nl"},
672  {"dutch", "Dutch"},
673  {"english", "C"},
674  {"english", "POSIX"},
675  {"english", "en"},
676  {"english", "English"},
677  {"finnish", "fi"},
678  {"finnish", "Finnish"},
679  {"french", "fr"},
680  {"french", "French"},
681  {"german", "de"},
682  {"german", "German"},
683  {"greek", "el"},
684  {"greek", "Greek"},
685  {"hindi", "hi"},
686  {"hindi", "Hindi"},
687  {"hungarian", "hu"},
688  {"hungarian", "Hungarian"},
689  {"indonesian", "id"},
690  {"indonesian", "Indonesian"},
691  {"irish", "ga"},
692  {"irish", "Irish"},
693  {"italian", "it"},
694  {"italian", "Italian"},
695  {"lithuanian", "lt"},
696  {"lithuanian", "Lithuanian"},
697  {"nepali", "ne"},
698  {"nepali", "Nepali"},
699  {"norwegian", "no"},
700  {"norwegian", "Norwegian"},
701  {"portuguese", "pt"},
702  {"portuguese", "Portuguese"},
703  {"romanian", "ro"},
704  {"russian", "ru"},
705  {"russian", "Russian"},
706  {"serbian", "sr"},
707  {"serbian", "Serbian"},
708  {"spanish", "es"},
709  {"spanish", "Spanish"},
710  {"swedish", "sv"},
711  {"swedish", "Swedish"},
712  {"tamil", "ta"},
713  {"tamil", "Tamil"},
714  {"turkish", "tr"},
715  {"turkish", "Turkish"},
716  {"yiddish", "yi"},
717  {"yiddish", "Yiddish"},
718  {NULL, NULL} /* end marker */
719 };
720 
721 /*
722  * Look for a text search configuration matching lc_ctype, and return its
723  * name; return NULL if no match.
724  */
725 static const char *
726 find_matching_ts_config(const char *lc_type)
727 {
728  int i;
729  char *langname,
730  *ptr;
731 
732  /*
733  * Convert lc_ctype to a language name by stripping everything after an
734  * underscore (usual case) or a hyphen (Windows "locale name"; see
735  * comments at IsoLocaleName()).
736  *
737  * XXX Should ' ' be a stop character? This would select "norwegian" for
738  * the Windows locale "Norwegian (Nynorsk)_Norway.1252". If we do so, we
739  * should also accept the "nn" and "nb" Unix locales.
740  *
741  * Just for paranoia, we also stop at '.' or '@'.
742  */
743  if (lc_type == NULL)
744  langname = pg_strdup("");
745  else
746  {
747  ptr = langname = pg_strdup(lc_type);
748  while (*ptr &&
749  *ptr != '_' && *ptr != '-' && *ptr != '.' && *ptr != '@')
750  ptr++;
751  *ptr = '\0';
752  }
753 
754  for (i = 0; tsearch_config_languages[i].tsconfname; i++)
755  {
756  if (pg_strcasecmp(tsearch_config_languages[i].langname, langname) == 0)
757  {
758  free(langname);
759  return tsearch_config_languages[i].tsconfname;
760  }
761  }
762 
763  free(langname);
764  return NULL;
765 }
766 
767 
768 /*
769  * set name of given input file variable under data directory
770  */
771 static void
772 set_input(char **dest, const char *filename)
773 {
774  *dest = psprintf("%s/%s", share_path, filename);
775 }
776 
777 /*
778  * check that given input file exists
779  */
780 static void
781 check_input(char *path)
782 {
783  struct stat statbuf;
784 
785  if (stat(path, &statbuf) != 0)
786  {
787  if (errno == ENOENT)
788  {
789  pg_log_error("file \"%s\" does not exist", path);
790  fprintf(stderr,
791  _("This might mean you have a corrupted installation or identified\n"
792  "the wrong directory with the invocation option -L.\n"));
793  }
794  else
795  {
796  pg_log_error("could not access file \"%s\": %m", path);
797  fprintf(stderr,
798  _("This might mean you have a corrupted installation or identified\n"
799  "the wrong directory with the invocation option -L.\n"));
800  }
801  exit(1);
802  }
803  if (!S_ISREG(statbuf.st_mode))
804  {
805  pg_log_error("file \"%s\" is not a regular file", path);
806  fprintf(stderr,
807  _("This might mean you have a corrupted installation or identified\n"
808  "the wrong directory with the invocation option -L.\n"));
809  exit(1);
810  }
811 }
812 
813 /*
814  * write out the PG_VERSION file in the data dir, or its subdirectory
815  * if extrapath is not NULL
816  */
817 static void
818 write_version_file(const char *extrapath)
819 {
820  FILE *version_file;
821  char *path;
822 
823  if (extrapath == NULL)
824  path = psprintf("%s/PG_VERSION", pg_data);
825  else
826  path = psprintf("%s/%s/PG_VERSION", pg_data, extrapath);
827 
828  if ((version_file = fopen(path, PG_BINARY_W)) == NULL)
829  {
830  pg_log_error("could not open file \"%s\" for writing: %m", path);
831  exit(1);
832  }
833  if (fprintf(version_file, "%s\n", PG_MAJORVERSION) < 0 ||
834  fclose(version_file))
835  {
836  pg_log_error("could not write file \"%s\": %m", path);
837  exit(1);
838  }
839  free(path);
840 }
841 
842 /*
843  * set up an empty config file so we can check config settings by launching
844  * a test backend
845  */
846 static void
848 {
849  FILE *conf_file;
850  char *path;
851 
852  path = psprintf("%s/postgresql.conf", pg_data);
853  conf_file = fopen(path, PG_BINARY_W);
854  if (conf_file == NULL)
855  {
856  pg_log_error("could not open file \"%s\" for writing: %m", path);
857  exit(1);
858  }
859  if (fclose(conf_file))
860  {
861  pg_log_error("could not write file \"%s\": %m", path);
862  exit(1);
863  }
864  free(path);
865 }
866 
867 /*
868  * Determine which dynamic shared memory implementation should be used on
869  * this platform. POSIX shared memory is preferable because the default
870  * allocation limits are much higher than the limits for System V on most
871  * systems that support both, but the fact that a platform has shm_open
872  * doesn't guarantee that that call will succeed when attempted. So, we
873  * attempt to reproduce what the postmaster will do when allocating a POSIX
874  * segment in dsm_impl.c; if it doesn't work, we assume it won't work for
875  * the postmaster either, and configure the cluster for System V shared
876  * memory instead.
877  */
878 static const char *
880 {
881 #ifdef HAVE_SHM_OPEN
882  int ntries = 10;
883 
884  /* Initialize random(); this function is its only user in this program. */
885  srandom((unsigned int) (getpid() ^ time(NULL)));
886 
887  while (ntries > 0)
888  {
889  uint32 handle;
890  char name[64];
891  int fd;
892 
893  handle = random();
894  snprintf(name, 64, "/PostgreSQL.%u", handle);
895  if ((fd = shm_open(name, O_CREAT | O_RDWR | O_EXCL, 0600)) != -1)
896  {
897  close(fd);
898  shm_unlink(name);
899  return "posix";
900  }
901  if (errno != EEXIST)
902  break;
903  --ntries;
904  }
905 #endif
906 
907 #ifdef WIN32
908  return "windows";
909 #else
910  return "sysv";
911 #endif
912 }
913 
914 /*
915  * Determine platform-specific config settings
916  *
917  * Use reasonable values if kernel will let us, else scale back.
918  */
919 static void
921 {
922  /*
923  * This macro defines the minimum shared_buffers we want for a given
924  * max_connections value. The arrays show the settings to try.
925  */
926 #define MIN_BUFS_FOR_CONNS(nconns) ((nconns) * 10)
927 
928  static const int trial_conns[] = {
929  100, 50, 40, 30, 20
930  };
931  static const int trial_bufs[] = {
932  16384, 8192, 4096, 3584, 3072, 2560, 2048, 1536,
933  1000, 900, 800, 700, 600, 500,
934  400, 300, 200, 100, 50
935  };
936 
937  char cmd[MAXPGPATH];
938  const int connslen = sizeof(trial_conns) / sizeof(int);
939  const int bufslen = sizeof(trial_bufs) / sizeof(int);
940  int i,
941  status,
942  test_conns,
943  test_buffs,
944  ok_buffers = 0;
945 
946  /*
947  * Need to determine working DSM implementation first so that subsequent
948  * tests don't fail because DSM setting doesn't work.
949  */
950  printf(_("selecting dynamic shared memory implementation ... "));
951  fflush(stdout);
954 
955  /*
956  * Probe for max_connections before shared_buffers, since it is subject to
957  * more constraints than shared_buffers.
958  */
959  printf(_("selecting default max_connections ... "));
960  fflush(stdout);
961 
962  for (i = 0; i < connslen; i++)
963  {
964  test_conns = trial_conns[i];
965  test_buffs = MIN_BUFS_FOR_CONNS(test_conns);
966 
967  snprintf(cmd, sizeof(cmd),
968  "\"%s\" --boot -x0 %s %s "
969  "-c max_connections=%d "
970  "-c shared_buffers=%d "
971  "-c dynamic_shared_memory_type=%s "
972  "< \"%s\" > \"%s\" 2>&1",
974  test_conns, test_buffs,
976  DEVNULL, DEVNULL);
977  status = system(cmd);
978  if (status == 0)
979  {
980  ok_buffers = test_buffs;
981  break;
982  }
983  }
984  if (i >= connslen)
985  i = connslen - 1;
986  n_connections = trial_conns[i];
987 
988  printf("%d\n", n_connections);
989 
990  printf(_("selecting default shared_buffers ... "));
991  fflush(stdout);
992 
993  for (i = 0; i < bufslen; i++)
994  {
995  /* Use same amount of memory, independent of BLCKSZ */
996  test_buffs = (trial_bufs[i] * 8192) / BLCKSZ;
997  if (test_buffs <= ok_buffers)
998  {
999  test_buffs = ok_buffers;
1000  break;
1001  }
1002 
1003  snprintf(cmd, sizeof(cmd),
1004  "\"%s\" --boot -x0 %s %s "
1005  "-c max_connections=%d "
1006  "-c shared_buffers=%d "
1007  "-c dynamic_shared_memory_type=%s "
1008  "< \"%s\" > \"%s\" 2>&1",
1010  n_connections, test_buffs,
1012  DEVNULL, DEVNULL);
1013  status = system(cmd);
1014  if (status == 0)
1015  break;
1016  }
1017  n_buffers = test_buffs;
1018 
1019  if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
1020  printf("%dMB\n", (n_buffers * (BLCKSZ / 1024)) / 1024);
1021  else
1022  printf("%dkB\n", n_buffers * (BLCKSZ / 1024));
1023 
1024  printf(_("selecting default time zone ... "));
1025  fflush(stdout);
1027  printf("%s\n", default_timezone ? default_timezone : "GMT");
1028 }
1029 
1030 /*
1031  * Calculate the default wal_size with a "pretty" unit.
1032  */
1033 static char *
1034 pretty_wal_size(int segment_count)
1035 {
1036  int sz = wal_segment_size_mb * segment_count;
1037  char *result = pg_malloc(14);
1038 
1039  if ((sz % 1024) == 0)
1040  snprintf(result, 14, "%dGB", sz / 1024);
1041  else
1042  snprintf(result, 14, "%dMB", sz);
1043 
1044  return result;
1045 }
1046 
1047 /*
1048  * set up all the config files
1049  */
1050 static void
1052 {
1053  char **conflines;
1054  char repltok[MAXPGPATH];
1055  char path[MAXPGPATH];
1056  char *autoconflines[3];
1057 
1058  fputs(_("creating configuration files ... "), stdout);
1059  fflush(stdout);
1060 
1061  /* postgresql.conf */
1062 
1063  conflines = readfile(conf_file);
1064 
1065  snprintf(repltok, sizeof(repltok), "max_connections = %d", n_connections);
1066  conflines = replace_token(conflines, "#max_connections = 100", repltok);
1067 
1068  if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
1069  snprintf(repltok, sizeof(repltok), "shared_buffers = %dMB",
1070  (n_buffers * (BLCKSZ / 1024)) / 1024);
1071  else
1072  snprintf(repltok, sizeof(repltok), "shared_buffers = %dkB",
1073  n_buffers * (BLCKSZ / 1024));
1074  conflines = replace_token(conflines, "#shared_buffers = 32MB", repltok);
1075 
1076 #ifdef HAVE_UNIX_SOCKETS
1077  snprintf(repltok, sizeof(repltok), "#unix_socket_directories = '%s'",
1079 #else
1080  snprintf(repltok, sizeof(repltok), "#unix_socket_directories = ''");
1081 #endif
1082  conflines = replace_token(conflines, "#unix_socket_directories = '/tmp'",
1083  repltok);
1084 
1085 #if DEF_PGPORT != 5432
1086  snprintf(repltok, sizeof(repltok), "#port = %d", DEF_PGPORT);
1087  conflines = replace_token(conflines, "#port = 5432", repltok);
1088 #endif
1089 
1090  /* set default max_wal_size and min_wal_size */
1091  snprintf(repltok, sizeof(repltok), "min_wal_size = %s",
1093  conflines = replace_token(conflines, "#min_wal_size = 80MB", repltok);
1094 
1095  snprintf(repltok, sizeof(repltok), "max_wal_size = %s",
1097  conflines = replace_token(conflines, "#max_wal_size = 1GB", repltok);
1098 
1099  snprintf(repltok, sizeof(repltok), "lc_messages = '%s'",
1101  conflines = replace_token(conflines, "#lc_messages = 'C'", repltok);
1102 
1103  snprintf(repltok, sizeof(repltok), "lc_monetary = '%s'",
1105  conflines = replace_token(conflines, "#lc_monetary = 'C'", repltok);
1106 
1107  snprintf(repltok, sizeof(repltok), "lc_numeric = '%s'",
1109  conflines = replace_token(conflines, "#lc_numeric = 'C'", repltok);
1110 
1111  snprintf(repltok, sizeof(repltok), "lc_time = '%s'",
1113  conflines = replace_token(conflines, "#lc_time = 'C'", repltok);
1114 
1115  switch (locale_date_order(lc_time))
1116  {
1117  case DATEORDER_YMD:
1118  strcpy(repltok, "datestyle = 'iso, ymd'");
1119  break;
1120  case DATEORDER_DMY:
1121  strcpy(repltok, "datestyle = 'iso, dmy'");
1122  break;
1123  case DATEORDER_MDY:
1124  default:
1125  strcpy(repltok, "datestyle = 'iso, mdy'");
1126  break;
1127  }
1128  conflines = replace_token(conflines, "#datestyle = 'iso, mdy'", repltok);
1129 
1130  snprintf(repltok, sizeof(repltok),
1131  "default_text_search_config = 'pg_catalog.%s'",
1133  conflines = replace_token(conflines,
1134  "#default_text_search_config = 'pg_catalog.simple'",
1135  repltok);
1136 
1137  if (default_timezone)
1138  {
1139  snprintf(repltok, sizeof(repltok), "timezone = '%s'",
1141  conflines = replace_token(conflines, "#timezone = 'GMT'", repltok);
1142  snprintf(repltok, sizeof(repltok), "log_timezone = '%s'",
1144  conflines = replace_token(conflines, "#log_timezone = 'GMT'", repltok);
1145  }
1146 
1147  snprintf(repltok, sizeof(repltok), "dynamic_shared_memory_type = %s",
1149  conflines = replace_token(conflines, "#dynamic_shared_memory_type = posix",
1150  repltok);
1151 
1152 #if DEFAULT_BACKEND_FLUSH_AFTER > 0
1153  snprintf(repltok, sizeof(repltok), "#backend_flush_after = %dkB",
1154  DEFAULT_BACKEND_FLUSH_AFTER * (BLCKSZ / 1024));
1155  conflines = replace_token(conflines, "#backend_flush_after = 0",
1156  repltok);
1157 #endif
1158 
1159 #if DEFAULT_BGWRITER_FLUSH_AFTER > 0
1160  snprintf(repltok, sizeof(repltok), "#bgwriter_flush_after = %dkB",
1161  DEFAULT_BGWRITER_FLUSH_AFTER * (BLCKSZ / 1024));
1162  conflines = replace_token(conflines, "#bgwriter_flush_after = 0",
1163  repltok);
1164 #endif
1165 
1166 #if DEFAULT_CHECKPOINT_FLUSH_AFTER > 0
1167  snprintf(repltok, sizeof(repltok), "#checkpoint_flush_after = %dkB",
1168  DEFAULT_CHECKPOINT_FLUSH_AFTER * (BLCKSZ / 1024));
1169  conflines = replace_token(conflines, "#checkpoint_flush_after = 0",
1170  repltok);
1171 #endif
1172 
1173 #ifndef USE_PREFETCH
1174  conflines = replace_token(conflines,
1175  "#effective_io_concurrency = 1",
1176  "#effective_io_concurrency = 0");
1177 #endif
1178 
1179 #ifdef WIN32
1180  conflines = replace_token(conflines,
1181  "#update_process_title = on",
1182  "#update_process_title = off");
1183 #endif
1184 
1185  /*
1186  * Change password_encryption setting to md5 if md5 was chosen as an
1187  * authentication method, unless scram-sha-256 was also chosen.
1188  */
1189  if ((strcmp(authmethodlocal, "md5") == 0 &&
1190  strcmp(authmethodhost, "scram-sha-256") != 0) ||
1191  (strcmp(authmethodhost, "md5") == 0 &&
1192  strcmp(authmethodlocal, "scram-sha-256") != 0))
1193  {
1194  conflines = replace_token(conflines,
1195  "#password_encryption = scram-sha-256",
1196  "password_encryption = md5");
1197  }
1198 
1199  /*
1200  * If group access has been enabled for the cluster then it makes sense to
1201  * ensure that the log files also allow group access. Otherwise a backup
1202  * from a user in the group would fail if the log files were not
1203  * relocated.
1204  */
1206  {
1207  conflines = replace_token(conflines,
1208  "#log_file_mode = 0600",
1209  "log_file_mode = 0640");
1210  }
1211 
1212  snprintf(path, sizeof(path), "%s/postgresql.conf", pg_data);
1213 
1214  writefile(path, conflines);
1215  if (chmod(path, pg_file_create_mode) != 0)
1216  {
1217  pg_log_error("could not change permissions of \"%s\": %m", path);
1218  exit(1);
1219  }
1220 
1221  /*
1222  * create the automatic configuration file to store the configuration
1223  * parameters set by ALTER SYSTEM command. The parameters present in this
1224  * file will override the value of parameters that exists before parse of
1225  * this file.
1226  */
1227  autoconflines[0] = pg_strdup("# Do not edit this file manually!\n");
1228  autoconflines[1] = pg_strdup("# It will be overwritten by the ALTER SYSTEM command.\n");
1229  autoconflines[2] = NULL;
1230 
1231  sprintf(path, "%s/postgresql.auto.conf", pg_data);
1232 
1233  writefile(path, autoconflines);
1234  if (chmod(path, pg_file_create_mode) != 0)
1235  {
1236  pg_log_error("could not change permissions of \"%s\": %m", path);
1237  exit(1);
1238  }
1239 
1240  free(conflines);
1241 
1242 
1243  /* pg_hba.conf */
1244 
1245  conflines = readfile(hba_file);
1246 
1247 #ifndef HAVE_UNIX_SOCKETS
1248  conflines = filter_lines_with_token(conflines, "@remove-line-for-nolocal@");
1249 #else
1250  conflines = replace_token(conflines, "@remove-line-for-nolocal@", "");
1251 #endif
1252 
1253 #ifdef HAVE_IPV6
1254 
1255  /*
1256  * Probe to see if there is really any platform support for IPv6, and
1257  * comment out the relevant pg_hba line if not. This avoids runtime
1258  * warnings if getaddrinfo doesn't actually cope with IPv6. Particularly
1259  * useful on Windows, where executables built on a machine with IPv6 may
1260  * have to run on a machine without.
1261  */
1262  {
1263  struct addrinfo *gai_result;
1264  struct addrinfo hints;
1265  int err = 0;
1266 
1267 #ifdef WIN32
1268  /* need to call WSAStartup before calling getaddrinfo */
1269  WSADATA wsaData;
1270 
1271  err = WSAStartup(MAKEWORD(2, 2), &wsaData);
1272 #endif
1273 
1274  /* for best results, this code should match parse_hba_line() */
1275  hints.ai_flags = AI_NUMERICHOST;
1276  hints.ai_family = AF_UNSPEC;
1277  hints.ai_socktype = 0;
1278  hints.ai_protocol = 0;
1279  hints.ai_addrlen = 0;
1280  hints.ai_canonname = NULL;
1281  hints.ai_addr = NULL;
1282  hints.ai_next = NULL;
1283 
1284  if (err != 0 ||
1285  getaddrinfo("::1", NULL, &hints, &gai_result) != 0)
1286  {
1287  conflines = replace_token(conflines,
1288  "host all all ::1",
1289  "#host all all ::1");
1290  conflines = replace_token(conflines,
1291  "host replication all ::1",
1292  "#host replication all ::1");
1293  }
1294  }
1295 #else /* !HAVE_IPV6 */
1296  /* If we didn't compile IPV6 support at all, always comment it out */
1297  conflines = replace_token(conflines,
1298  "host all all ::1",
1299  "#host all all ::1");
1300  conflines = replace_token(conflines,
1301  "host replication all ::1",
1302  "#host replication all ::1");
1303 #endif /* HAVE_IPV6 */
1304 
1305  /* Replace default authentication methods */
1306  conflines = replace_token(conflines,
1307  "@authmethodhost@",
1308  authmethodhost);
1309  conflines = replace_token(conflines,
1310  "@authmethodlocal@",
1311  authmethodlocal);
1312 
1313  conflines = replace_token(conflines,
1314  "@authcomment@",
1315  (strcmp(authmethodlocal, "trust") == 0 || strcmp(authmethodhost, "trust") == 0) ? AUTHTRUST_WARNING : "");
1316 
1317  snprintf(path, sizeof(path), "%s/pg_hba.conf", pg_data);
1318 
1319  writefile(path, conflines);
1320  if (chmod(path, pg_file_create_mode) != 0)
1321  {
1322  pg_log_error("could not change permissions of \"%s\": %m", path);
1323  exit(1);
1324  }
1325 
1326  free(conflines);
1327 
1328  /* pg_ident.conf */
1329 
1330  conflines = readfile(ident_file);
1331 
1332  snprintf(path, sizeof(path), "%s/pg_ident.conf", pg_data);
1333 
1334  writefile(path, conflines);
1335  if (chmod(path, pg_file_create_mode) != 0)
1336  {
1337  pg_log_error("could not change permissions of \"%s\": %m", path);
1338  exit(1);
1339  }
1340 
1341  free(conflines);
1342 
1343  check_ok();
1344 }
1345 
1346 
1347 /*
1348  * run the BKI script in bootstrap mode to create template1
1349  */
1350 static void
1352 {
1353  PG_CMD_DECL;
1354  char **line;
1355  char **bki_lines;
1356  char headerline[MAXPGPATH];
1357  char buf[64];
1358 
1359  printf(_("running bootstrap script ... "));
1360  fflush(stdout);
1361 
1362  bki_lines = readfile(bki_file);
1363 
1364  /* Check that bki file appears to be of the right version */
1365 
1366  snprintf(headerline, sizeof(headerline), "# PostgreSQL %s\n",
1367  PG_MAJORVERSION);
1368 
1369  if (strcmp(headerline, *bki_lines) != 0)
1370  {
1371  pg_log_error("input file \"%s\" does not belong to PostgreSQL %s",
1372  bki_file, PG_VERSION);
1373  fprintf(stderr,
1374  _("Check your installation or specify the correct path "
1375  "using the option -L.\n"));
1376  exit(1);
1377  }
1378 
1379  /* Substitute for various symbols used in the BKI file */
1380 
1381  sprintf(buf, "%d", NAMEDATALEN);
1382  bki_lines = replace_token(bki_lines, "NAMEDATALEN", buf);
1383 
1384  sprintf(buf, "%d", (int) sizeof(Pointer));
1385  bki_lines = replace_token(bki_lines, "SIZEOF_POINTER", buf);
1386 
1387  bki_lines = replace_token(bki_lines, "ALIGNOF_POINTER",
1388  (sizeof(Pointer) == 4) ? "i" : "d");
1389 
1390  bki_lines = replace_token(bki_lines, "FLOAT8PASSBYVAL",
1391  FLOAT8PASSBYVAL ? "true" : "false");
1392 
1393  bki_lines = replace_token(bki_lines, "POSTGRES",
1395 
1396  bki_lines = replace_token(bki_lines, "ENCODING",
1398 
1399  bki_lines = replace_token(bki_lines, "LC_COLLATE",
1401 
1402  bki_lines = replace_token(bki_lines, "LC_CTYPE",
1404 
1405  /* Also ensure backend isn't confused by this environment var: */
1406  unsetenv("PGCLIENTENCODING");
1407 
1408  snprintf(cmd, sizeof(cmd),
1409  "\"%s\" --boot -x1 -X %u %s %s %s %s",
1410  backend_exec,
1411  wal_segment_size_mb * (1024 * 1024),
1412  data_checksums ? "-k" : "",
1414  debug ? "-d 5" : "");
1415 
1416 
1417  PG_CMD_OPEN;
1418 
1419  for (line = bki_lines; *line != NULL; line++)
1420  {
1421  PG_CMD_PUTS(*line);
1422  free(*line);
1423  }
1424 
1425  PG_CMD_CLOSE;
1426 
1427  free(bki_lines);
1428 
1429  check_ok();
1430 }
1431 
1432 /*
1433  * set up the shadow password table
1434  */
1435 static void
1436 setup_auth(FILE *cmdfd)
1437 {
1438  const char *const *line;
1439  static const char *const pg_authid_setup[] = {
1440  /*
1441  * The authid table shouldn't be readable except through views, to
1442  * ensure passwords are not publicly visible.
1443  */
1444  "REVOKE ALL ON pg_authid FROM public;\n\n",
1445  NULL
1446  };
1447 
1448  for (line = pg_authid_setup; *line != NULL; line++)
1449  PG_CMD_PUTS(*line);
1450 
1451  if (superuser_password)
1452  PG_CMD_PRINTF("ALTER USER \"%s\" WITH PASSWORD E'%s';\n\n",
1454 }
1455 
1456 /*
1457  * get the superuser password if required
1458  */
1459 static void
1461 {
1462  char *pwd1;
1463 
1464  if (pwprompt)
1465  {
1466  /*
1467  * Read password from terminal
1468  */
1469  char *pwd2;
1470 
1471  printf("\n");
1472  fflush(stdout);
1473  pwd1 = simple_prompt("Enter new superuser password: ", false);
1474  pwd2 = simple_prompt("Enter it again: ", false);
1475  if (strcmp(pwd1, pwd2) != 0)
1476  {
1477  fprintf(stderr, _("Passwords didn't match.\n"));
1478  exit(1);
1479  }
1480  free(pwd2);
1481  }
1482  else
1483  {
1484  /*
1485  * Read password from file
1486  *
1487  * Ideally this should insist that the file not be world-readable.
1488  * However, this option is mainly intended for use on Windows where
1489  * file permissions may not exist at all, so we'll skip the paranoia
1490  * for now.
1491  */
1492  FILE *pwf = fopen(pwfilename, "r");
1493 
1494  if (!pwf)
1495  {
1496  pg_log_error("could not open file \"%s\" for reading: %m",
1497  pwfilename);
1498  exit(1);
1499  }
1500  pwd1 = pg_get_line(pwf);
1501  if (!pwd1)
1502  {
1503  if (ferror(pwf))
1504  pg_log_error("could not read password from file \"%s\": %m",
1505  pwfilename);
1506  else
1507  pg_log_error("password file \"%s\" is empty",
1508  pwfilename);
1509  exit(1);
1510  }
1511  fclose(pwf);
1512 
1513  (void) pg_strip_crlf(pwd1);
1514  }
1515 
1516  superuser_password = pwd1;
1517 }
1518 
1519 /*
1520  * set up pg_depend
1521  */
1522 static void
1523 setup_depend(FILE *cmdfd)
1524 {
1525  const char *const *line;
1526  static const char *const pg_depend_setup[] = {
1527  /*
1528  * Advance the OID counter so that subsequently-created objects aren't
1529  * pinned.
1530  */
1531  "SELECT pg_stop_making_pinned_objects();\n\n",
1532  NULL
1533  };
1534 
1535  for (line = pg_depend_setup; *line != NULL; line++)
1536  PG_CMD_PUTS(*line);
1537 }
1538 
1539 /*
1540  * Run external file
1541  */
1542 static void
1543 setup_run_file(FILE *cmdfd, const char *filename)
1544 {
1545  char **lines;
1546 
1547  lines = readfile(filename);
1548 
1549  for (char **line = lines; *line != NULL; line++)
1550  {
1551  PG_CMD_PUTS(*line);
1552  free(*line);
1553  }
1554 
1555  PG_CMD_PUTS("\n\n");
1556 
1557  free(lines);
1558 }
1559 
1560 /*
1561  * fill in extra description data
1562  */
1563 static void
1564 setup_description(FILE *cmdfd)
1565 {
1566  /* Create default descriptions for operator implementation functions */
1567  PG_CMD_PUTS("WITH funcdescs AS ( "
1568  "SELECT p.oid as p_oid, o.oid as o_oid, oprname "
1569  "FROM pg_proc p JOIN pg_operator o ON oprcode = p.oid ) "
1570  "INSERT INTO pg_description "
1571  " SELECT p_oid, 'pg_proc'::regclass, 0, "
1572  " 'implementation of ' || oprname || ' operator' "
1573  " FROM funcdescs "
1574  " WHERE NOT EXISTS (SELECT 1 FROM pg_description "
1575  " WHERE objoid = p_oid AND classoid = 'pg_proc'::regclass) "
1576  " AND NOT EXISTS (SELECT 1 FROM pg_description "
1577  " WHERE objoid = o_oid AND classoid = 'pg_operator'::regclass"
1578  " AND description LIKE 'deprecated%');\n\n");
1579 }
1580 
1581 /*
1582  * populate pg_collation
1583  */
1584 static void
1585 setup_collation(FILE *cmdfd)
1586 {
1587  /*
1588  * Add an SQL-standard name. We don't want to pin this, so it doesn't go
1589  * in pg_collation.h. But add it before reading system collations, so
1590  * that it wins if libc defines a locale named ucs_basic.
1591  */
1592  PG_CMD_PRINTF("INSERT INTO pg_collation (oid, collname, collnamespace, collowner, collprovider, collisdeterministic, collencoding, collcollate, collctype)"
1593  "VALUES (pg_nextoid('pg_catalog.pg_collation', 'oid', 'pg_catalog.pg_collation_oid_index'), 'ucs_basic', 'pg_catalog'::regnamespace, %u, '%c', true, %d, 'C', 'C');\n\n",
1594  BOOTSTRAP_SUPERUSERID, COLLPROVIDER_LIBC, PG_UTF8);
1595 
1596  /* Now import all collations we can find in the operating system */
1597  PG_CMD_PUTS("SELECT pg_import_system_collations('pg_catalog');\n\n");
1598 }
1599 
1600 /*
1601  * Set up privileges
1602  *
1603  * We mark most system catalogs as world-readable. We don't currently have
1604  * to touch functions, languages, or databases, because their default
1605  * permissions are OK.
1606  *
1607  * Some objects may require different permissions by default, so we
1608  * make sure we don't overwrite privilege sets that have already been
1609  * set (NOT NULL).
1610  *
1611  * Also populate pg_init_privs to save what the privileges are at init
1612  * time. This is used by pg_dump to allow users to change privileges
1613  * on catalog objects and to have those privilege changes preserved
1614  * across dump/reload and pg_upgrade.
1615  *
1616  * Note that pg_init_privs is only for per-database objects and therefore
1617  * we don't include databases or tablespaces.
1618  */
1619 static void
1620 setup_privileges(FILE *cmdfd)
1621 {
1622  char **line;
1623  char **priv_lines;
1624  static char *privileges_setup[] = {
1625  "UPDATE pg_class "
1626  " SET relacl = (SELECT array_agg(a.acl) FROM "
1627  " (SELECT E'=r/\"$POSTGRES_SUPERUSERNAME\"' as acl "
1628  " UNION SELECT unnest(pg_catalog.acldefault("
1629  " CASE WHEN relkind = " CppAsString2(RELKIND_SEQUENCE) " THEN 's' "
1630  " ELSE 'r' END::\"char\"," CppAsString2(BOOTSTRAP_SUPERUSERID) "::oid))"
1631  " ) as a) "
1632  " WHERE relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1633  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1634  CppAsString2(RELKIND_SEQUENCE) ")"
1635  " AND relacl IS NULL;\n\n",
1636  "GRANT USAGE ON SCHEMA pg_catalog TO PUBLIC;\n\n",
1637  "GRANT CREATE, USAGE ON SCHEMA public TO PUBLIC;\n\n",
1638  "REVOKE ALL ON pg_largeobject FROM PUBLIC;\n\n",
1639  "INSERT INTO pg_init_privs "
1640  " (objoid, classoid, objsubid, initprivs, privtype)"
1641  " SELECT"
1642  " oid,"
1643  " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
1644  " 0,"
1645  " relacl,"
1646  " 'i'"
1647  " FROM"
1648  " pg_class"
1649  " WHERE"
1650  " relacl IS NOT NULL"
1651  " AND relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1652  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1653  CppAsString2(RELKIND_SEQUENCE) ");\n\n",
1654  "INSERT INTO pg_init_privs "
1655  " (objoid, classoid, objsubid, initprivs, privtype)"
1656  " SELECT"
1657  " pg_class.oid,"
1658  " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
1659  " pg_attribute.attnum,"
1660  " pg_attribute.attacl,"
1661  " 'i'"
1662  " FROM"
1663  " pg_class"
1664  " JOIN pg_attribute ON (pg_class.oid = pg_attribute.attrelid)"
1665  " WHERE"
1666  " pg_attribute.attacl IS NOT NULL"
1667  " AND pg_class.relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1668  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1669  CppAsString2(RELKIND_SEQUENCE) ");\n\n",
1670  "INSERT INTO pg_init_privs "
1671  " (objoid, classoid, objsubid, initprivs, privtype)"
1672  " SELECT"
1673  " oid,"
1674  " (SELECT oid FROM pg_class WHERE relname = 'pg_proc'),"
1675  " 0,"
1676  " proacl,"
1677  " 'i'"
1678  " FROM"
1679  " pg_proc"
1680  " WHERE"
1681  " proacl IS NOT NULL;\n\n",
1682  "INSERT INTO pg_init_privs "
1683  " (objoid, classoid, objsubid, initprivs, privtype)"
1684  " SELECT"
1685  " oid,"
1686  " (SELECT oid FROM pg_class WHERE relname = 'pg_type'),"
1687  " 0,"
1688  " typacl,"
1689  " 'i'"
1690  " FROM"
1691  " pg_type"
1692  " WHERE"
1693  " typacl IS NOT NULL;\n\n",
1694  "INSERT INTO pg_init_privs "
1695  " (objoid, classoid, objsubid, initprivs, privtype)"
1696  " SELECT"
1697  " oid,"
1698  " (SELECT oid FROM pg_class WHERE relname = 'pg_language'),"
1699  " 0,"
1700  " lanacl,"
1701  " 'i'"
1702  " FROM"
1703  " pg_language"
1704  " WHERE"
1705  " lanacl IS NOT NULL;\n\n",
1706  "INSERT INTO pg_init_privs "
1707  " (objoid, classoid, objsubid, initprivs, privtype)"
1708  " SELECT"
1709  " oid,"
1710  " (SELECT oid FROM pg_class WHERE "
1711  " relname = 'pg_largeobject_metadata'),"
1712  " 0,"
1713  " lomacl,"
1714  " 'i'"
1715  " FROM"
1716  " pg_largeobject_metadata"
1717  " WHERE"
1718  " lomacl IS NOT NULL;\n\n",
1719  "INSERT INTO pg_init_privs "
1720  " (objoid, classoid, objsubid, initprivs, privtype)"
1721  " SELECT"
1722  " oid,"
1723  " (SELECT oid FROM pg_class WHERE relname = 'pg_namespace'),"
1724  " 0,"
1725  " nspacl,"
1726  " 'i'"
1727  " FROM"
1728  " pg_namespace"
1729  " WHERE"
1730  " nspacl IS NOT NULL;\n\n",
1731  "INSERT INTO pg_init_privs "
1732  " (objoid, classoid, objsubid, initprivs, privtype)"
1733  " SELECT"
1734  " oid,"
1735  " (SELECT oid FROM pg_class WHERE "
1736  " relname = 'pg_foreign_data_wrapper'),"
1737  " 0,"
1738  " fdwacl,"
1739  " 'i'"
1740  " FROM"
1741  " pg_foreign_data_wrapper"
1742  " WHERE"
1743  " fdwacl IS NOT NULL;\n\n",
1744  "INSERT INTO pg_init_privs "
1745  " (objoid, classoid, objsubid, initprivs, privtype)"
1746  " SELECT"
1747  " oid,"
1748  " (SELECT oid FROM pg_class "
1749  " WHERE relname = 'pg_foreign_server'),"
1750  " 0,"
1751  " srvacl,"
1752  " 'i'"
1753  " FROM"
1754  " pg_foreign_server"
1755  " WHERE"
1756  " srvacl IS NOT NULL;\n\n",
1757  NULL
1758  };
1759 
1760  priv_lines = replace_token(privileges_setup, "$POSTGRES_SUPERUSERNAME",
1762  for (line = priv_lines; *line != NULL; line++)
1763  PG_CMD_PUTS(*line);
1764 }
1765 
1766 /*
1767  * extract the strange version of version required for information schema
1768  * (09.08.0007abc)
1769  */
1770 static void
1772 {
1773  char *letterversion;
1774  long major = 0,
1775  minor = 0,
1776  micro = 0;
1777  char *endptr;
1778  char *vstr = pg_strdup(PG_VERSION);
1779  char *ptr;
1780 
1781  ptr = vstr + (strlen(vstr) - 1);
1782  while (ptr != vstr && (*ptr < '0' || *ptr > '9'))
1783  ptr--;
1784  letterversion = ptr + 1;
1785  major = strtol(vstr, &endptr, 10);
1786  if (*endptr)
1787  minor = strtol(endptr + 1, &endptr, 10);
1788  if (*endptr)
1789  micro = strtol(endptr + 1, &endptr, 10);
1790  snprintf(infoversion, sizeof(infoversion), "%02ld.%02ld.%04ld%s",
1791  major, minor, micro, letterversion);
1792 }
1793 
1794 /*
1795  * load info schema and populate from features file
1796  */
1797 static void
1798 setup_schema(FILE *cmdfd)
1799 {
1801 
1802  PG_CMD_PRINTF("UPDATE information_schema.sql_implementation_info "
1803  " SET character_value = '%s' "
1804  " WHERE implementation_info_name = 'DBMS VERSION';\n\n",
1805  infoversion);
1806 
1807  PG_CMD_PRINTF("COPY information_schema.sql_features "
1808  " (feature_id, feature_name, sub_feature_id, "
1809  " sub_feature_name, is_supported, comments) "
1810  " FROM E'%s';\n\n",
1812 }
1813 
1814 /*
1815  * load PL/pgSQL server-side language
1816  */
1817 static void
1818 load_plpgsql(FILE *cmdfd)
1819 {
1820  PG_CMD_PUTS("CREATE EXTENSION plpgsql;\n\n");
1821 }
1822 
1823 /*
1824  * clean everything up in template1
1825  */
1826 static void
1827 vacuum_db(FILE *cmdfd)
1828 {
1829  /* Run analyze before VACUUM so the statistics are frozen. */
1830  PG_CMD_PUTS("ANALYZE;\n\nVACUUM FREEZE;\n\n");
1831 }
1832 
1833 /*
1834  * copy template1 to template0
1835  */
1836 static void
1837 make_template0(FILE *cmdfd)
1838 {
1839  const char *const *line;
1840  static const char *const template0_setup[] = {
1841  "CREATE DATABASE template0 IS_TEMPLATE = true ALLOW_CONNECTIONS = false;\n\n",
1842 
1843  /*
1844  * We use the OID of template0 to determine datlastsysoid
1845  */
1846  "UPDATE pg_database SET datlastsysoid = "
1847  " (SELECT oid FROM pg_database "
1848  " WHERE datname = 'template0');\n\n",
1849 
1850  /*
1851  * Explicitly revoke public create-schema and create-temp-table
1852  * privileges in template1 and template0; else the latter would be on
1853  * by default
1854  */
1855  "REVOKE CREATE,TEMPORARY ON DATABASE template1 FROM public;\n\n",
1856  "REVOKE CREATE,TEMPORARY ON DATABASE template0 FROM public;\n\n",
1857 
1858  "COMMENT ON DATABASE template0 IS 'unmodifiable empty database';\n\n",
1859 
1860  /*
1861  * Finally vacuum to clean up dead rows in pg_database
1862  */
1863  "VACUUM pg_database;\n\n",
1864  NULL
1865  };
1866 
1867  for (line = template0_setup; *line; line++)
1868  PG_CMD_PUTS(*line);
1869 }
1870 
1871 /*
1872  * copy template1 to postgres
1873  */
1874 static void
1875 make_postgres(FILE *cmdfd)
1876 {
1877  const char *const *line;
1878  static const char *const postgres_setup[] = {
1879  "CREATE DATABASE postgres;\n\n",
1880  "COMMENT ON DATABASE postgres IS 'default administrative connection database';\n\n",
1881  NULL
1882  };
1883 
1884  for (line = postgres_setup; *line; line++)
1885  PG_CMD_PUTS(*line);
1886 }
1887 
1888 /*
1889  * signal handler in case we are interrupted.
1890  *
1891  * The Windows runtime docs at
1892  * https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/signal
1893  * specifically forbid a number of things being done from a signal handler,
1894  * including IO, memory allocation and system calls, and only allow jmpbuf
1895  * if you are handling SIGFPE.
1896  *
1897  * I avoided doing the forbidden things by setting a flag instead of calling
1898  * exit() directly.
1899  *
1900  * Also note the behaviour of Windows with SIGINT, which says this:
1901  * SIGINT is not supported for any Win32 application. When a CTRL+C interrupt
1902  * occurs, Win32 operating systems generate a new thread to specifically
1903  * handle that interrupt. This can cause a single-thread application, such as
1904  * one in UNIX, to become multithreaded and cause unexpected behavior.
1905  *
1906  * I have no idea how to handle this. (Strange they call UNIX an application!)
1907  * So this will need some testing on Windows.
1908  */
1909 static void
1910 trapsig(int signum)
1911 {
1912  /* handle systems that reset the handler, like Windows (grr) */
1913  pqsignal(signum, trapsig);
1914  caught_signal = true;
1915 }
1916 
1917 /*
1918  * call exit() if we got a signal, or else output "ok".
1919  */
1920 static void
1922 {
1923  if (caught_signal)
1924  {
1925  printf(_("caught signal\n"));
1926  fflush(stdout);
1927  exit(1);
1928  }
1929  else if (output_failed)
1930  {
1931  printf(_("could not write to child process: %s\n"),
1933  fflush(stdout);
1934  exit(1);
1935  }
1936  else
1937  {
1938  /* all seems well */
1939  printf(_("ok\n"));
1940  fflush(stdout);
1941  }
1942 }
1943 
1944 /* Hack to suppress a warning about %x from some versions of gcc */
1945 static inline size_t
1946 my_strftime(char *s, size_t max, const char *fmt, const struct tm *tm)
1947 {
1948  return strftime(s, max, fmt, tm);
1949 }
1950 
1951 /*
1952  * Determine likely date order from locale
1953  */
1954 static int
1956 {
1957  struct tm testtime;
1958  char buf[128];
1959  char *posD;
1960  char *posM;
1961  char *posY;
1962  char *save;
1963  size_t res;
1964  int result;
1965 
1966  result = DATEORDER_MDY; /* default */
1967 
1968  save = setlocale(LC_TIME, NULL);
1969  if (!save)
1970  return result;
1971  save = pg_strdup(save);
1972 
1973  setlocale(LC_TIME, locale);
1974 
1975  memset(&testtime, 0, sizeof(testtime));
1976  testtime.tm_mday = 22;
1977  testtime.tm_mon = 10; /* November, should come out as "11" */
1978  testtime.tm_year = 133; /* 2033 */
1979 
1980  res = my_strftime(buf, sizeof(buf), "%x", &testtime);
1981 
1982  setlocale(LC_TIME, save);
1983  free(save);
1984 
1985  if (res == 0)
1986  return result;
1987 
1988  posM = strstr(buf, "11");
1989  posD = strstr(buf, "22");
1990  posY = strstr(buf, "33");
1991 
1992  if (!posM || !posD || !posY)
1993  return result;
1994 
1995  if (posY < posM && posM < posD)
1996  result = DATEORDER_YMD;
1997  else if (posD < posM)
1998  result = DATEORDER_DMY;
1999  else
2000  result = DATEORDER_MDY;
2001 
2002  return result;
2003 }
2004 
2005 /*
2006  * Verify that locale name is valid for the locale category.
2007  *
2008  * If successful, and canonname isn't NULL, a malloc'd copy of the locale's
2009  * canonical name is stored there. This is especially useful for figuring out
2010  * what locale name "" means (ie, the environment value). (Actually,
2011  * it seems that on most implementations that's the only thing it's good for;
2012  * we could wish that setlocale gave back a canonically spelled version of
2013  * the locale name, but typically it doesn't.)
2014  *
2015  * this should match the backend's check_locale() function
2016  */
2017 static void
2018 check_locale_name(int category, const char *locale, char **canonname)
2019 {
2020  char *save;
2021  char *res;
2022 
2023  if (canonname)
2024  *canonname = NULL; /* in case of failure */
2025 
2026  save = setlocale(category, NULL);
2027  if (!save)
2028  {
2029  pg_log_error("setlocale() failed");
2030  exit(1);
2031  }
2032 
2033  /* save may be pointing at a modifiable scratch variable, so copy it. */
2034  save = pg_strdup(save);
2035 
2036  /* for setlocale() call */
2037  if (!locale)
2038  locale = "";
2039 
2040  /* set the locale with setlocale, to see if it accepts it. */
2041  res = setlocale(category, locale);
2042 
2043  /* save canonical name if requested. */
2044  if (res && canonname)
2045  *canonname = pg_strdup(res);
2046 
2047  /* restore old value. */
2048  if (!setlocale(category, save))
2049  {
2050  pg_log_error("failed to restore old locale \"%s\"", save);
2051  exit(1);
2052  }
2053  free(save);
2054 
2055  /* complain if locale wasn't valid */
2056  if (res == NULL)
2057  {
2058  if (*locale)
2059  pg_log_error("invalid locale name \"%s\"", locale);
2060  else
2061  {
2062  /*
2063  * If no relevant switch was given on command line, locale is an
2064  * empty string, which is not too helpful to report. Presumably
2065  * setlocale() found something it did not like in the environment.
2066  * Ideally we'd report the bad environment variable, but since
2067  * setlocale's behavior is implementation-specific, it's hard to
2068  * be sure what it didn't like. Print a safe generic message.
2069  */
2070  pg_log_error("invalid locale settings; check LANG and LC_* environment variables");
2071  }
2072  exit(1);
2073  }
2074 }
2075 
2076 /*
2077  * check if the chosen encoding matches the encoding required by the locale
2078  *
2079  * this should match the similar check in the backend createdb() function
2080  */
2081 static bool
2082 check_locale_encoding(const char *locale, int user_enc)
2083 {
2084  int locale_enc;
2085 
2086  locale_enc = pg_get_encoding_from_locale(locale, true);
2087 
2088  /* See notes in createdb() to understand these tests */
2089  if (!(locale_enc == user_enc ||
2090  locale_enc == PG_SQL_ASCII ||
2091  locale_enc == -1 ||
2092 #ifdef WIN32
2093  user_enc == PG_UTF8 ||
2094 #endif
2095  user_enc == PG_SQL_ASCII))
2096  {
2097  pg_log_error("encoding mismatch");
2098  fprintf(stderr,
2099  _("The encoding you selected (%s) and the encoding that the\n"
2100  "selected locale uses (%s) do not match. This would lead to\n"
2101  "misbehavior in various character string processing functions.\n"
2102  "Rerun %s and either do not specify an encoding explicitly,\n"
2103  "or choose a matching combination.\n"),
2104  pg_encoding_to_char(user_enc),
2105  pg_encoding_to_char(locale_enc),
2106  progname);
2107  return false;
2108  }
2109  return true;
2110 }
2111 
2112 /*
2113  * set up the locale variables
2114  *
2115  * assumes we have called setlocale(LC_ALL, "") -- see set_pglocale_pgservice
2116  */
2117 static void
2119 {
2120  char *canonname;
2121 
2122  /* set empty lc_* values to locale config if set */
2123 
2124  if (locale)
2125  {
2126  if (!lc_ctype)
2127  lc_ctype = locale;
2128  if (!lc_collate)
2129  lc_collate = locale;
2130  if (!lc_numeric)
2131  lc_numeric = locale;
2132  if (!lc_time)
2133  lc_time = locale;
2134  if (!lc_monetary)
2135  lc_monetary = locale;
2136  if (!lc_messages)
2137  lc_messages = locale;
2138  }
2139 
2140  /*
2141  * canonicalize locale names, and obtain any missing values from our
2142  * current environment
2143  */
2144 
2145  check_locale_name(LC_CTYPE, lc_ctype, &canonname);
2146  lc_ctype = canonname;
2147  check_locale_name(LC_COLLATE, lc_collate, &canonname);
2148  lc_collate = canonname;
2149  check_locale_name(LC_NUMERIC, lc_numeric, &canonname);
2150  lc_numeric = canonname;
2151  check_locale_name(LC_TIME, lc_time, &canonname);
2152  lc_time = canonname;
2153  check_locale_name(LC_MONETARY, lc_monetary, &canonname);
2154  lc_monetary = canonname;
2155 #if defined(LC_MESSAGES) && !defined(WIN32)
2156  check_locale_name(LC_MESSAGES, lc_messages, &canonname);
2157  lc_messages = canonname;
2158 #else
2159  /* when LC_MESSAGES is not available, use the LC_CTYPE setting */
2160  check_locale_name(LC_CTYPE, lc_messages, &canonname);
2161  lc_messages = canonname;
2162 #endif
2163 }
2164 
2165 /*
2166  * print help text
2167  */
2168 static void
2169 usage(const char *progname)
2170 {
2171  printf(_("%s initializes a PostgreSQL database cluster.\n\n"), progname);
2172  printf(_("Usage:\n"));
2173  printf(_(" %s [OPTION]... [DATADIR]\n"), progname);
2174  printf(_("\nOptions:\n"));
2175  printf(_(" -A, --auth=METHOD default authentication method for local connections\n"));
2176  printf(_(" --auth-host=METHOD default authentication method for local TCP/IP connections\n"));
2177  printf(_(" --auth-local=METHOD default authentication method for local-socket connections\n"));
2178  printf(_(" [-D, --pgdata=]DATADIR location for this database cluster\n"));
2179  printf(_(" -E, --encoding=ENCODING set default encoding for new databases\n"));
2180  printf(_(" -g, --allow-group-access allow group read/execute on data directory\n"));
2181  printf(_(" -k, --data-checksums use data page checksums\n"));
2182  printf(_(" --locale=LOCALE set default locale for new databases\n"));
2183  printf(_(" --lc-collate=, --lc-ctype=, --lc-messages=LOCALE\n"
2184  " --lc-monetary=, --lc-numeric=, --lc-time=LOCALE\n"
2185  " set default locale in the respective category for\n"
2186  " new databases (default taken from environment)\n"));
2187  printf(_(" --no-locale equivalent to --locale=C\n"));
2188  printf(_(" --pwfile=FILE read password for the new superuser from file\n"));
2189  printf(_(" -T, --text-search-config=CFG\n"
2190  " default text search configuration\n"));
2191  printf(_(" -U, --username=NAME database superuser name\n"));
2192  printf(_(" -W, --pwprompt prompt for a password for the new superuser\n"));
2193  printf(_(" -X, --waldir=WALDIR location for the write-ahead log directory\n"));
2194  printf(_(" --wal-segsize=SIZE size of WAL segments, in megabytes\n"));
2195  printf(_("\nLess commonly used options:\n"));
2196  printf(_(" -d, --debug generate lots of debugging output\n"));
2197  printf(_(" --discard-caches set debug_discard_caches=1\n"));
2198  printf(_(" -L DIRECTORY where to find the input files\n"));
2199  printf(_(" -n, --no-clean do not clean up after errors\n"));
2200  printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
2201  printf(_(" --no-instructions do not print instructions for next steps\n"));
2202  printf(_(" -s, --show show internal settings\n"));
2203  printf(_(" -S, --sync-only only sync data directory\n"));
2204  printf(_("\nOther options:\n"));
2205  printf(_(" -V, --version output version information, then exit\n"));
2206  printf(_(" -?, --help show this help, then exit\n"));
2207  printf(_("\nIf the data directory is not specified, the environment variable PGDATA\n"
2208  "is used.\n"));
2209  printf(_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
2210  printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
2211 }
2212 
2213 static void
2214 check_authmethod_unspecified(const char **authmethod)
2215 {
2216  if (*authmethod == NULL)
2217  {
2218  authwarning = true;
2219  *authmethod = "trust";
2220  }
2221 }
2222 
2223 static void
2224 check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
2225 {
2226  const char *const *p;
2227 
2228  for (p = valid_methods; *p; p++)
2229  {
2230  if (strcmp(authmethod, *p) == 0)
2231  return;
2232  /* with space = param */
2233  if (strchr(authmethod, ' '))
2234  if (strncmp(authmethod, *p, (authmethod - strchr(authmethod, ' '))) == 0)
2235  return;
2236  }
2237 
2238  pg_log_error("invalid authentication method \"%s\" for \"%s\" connections",
2239  authmethod, conntype);
2240  exit(1);
2241 }
2242 
2243 static void
2245 {
2246  if ((strcmp(authmethodlocal, "md5") == 0 ||
2247  strcmp(authmethodlocal, "password") == 0 ||
2248  strcmp(authmethodlocal, "scram-sha-256") == 0) &&
2249  (strcmp(authmethodhost, "md5") == 0 ||
2250  strcmp(authmethodhost, "password") == 0 ||
2251  strcmp(authmethodhost, "scram-sha-256") == 0) &&
2252  !(pwprompt || pwfilename))
2253  {
2254  pg_log_error("must specify a password for the superuser to enable password authentication");
2255  exit(1);
2256  }
2257 }
2258 
2259 
2260 void
2262 {
2263  char *pgdata_get_env;
2264 
2265  if (!pg_data)
2266  {
2267  pgdata_get_env = getenv("PGDATA");
2268  if (pgdata_get_env && strlen(pgdata_get_env))
2269  {
2270  /* PGDATA found */
2271  pg_data = pg_strdup(pgdata_get_env);
2272  }
2273  else
2274  {
2275  pg_log_error("no data directory specified");
2276  fprintf(stderr,
2277  _("You must identify the directory where the data for this database system\n"
2278  "will reside. Do this with either the invocation option -D or the\n"
2279  "environment variable PGDATA.\n"));
2280  exit(1);
2281  }
2282  }
2283 
2286 
2287  /*
2288  * we have to set PGDATA for postgres rather than pass it on the command
2289  * line to avoid dumb quoting problems on Windows, and we would especially
2290  * need quotes otherwise on Windows because paths there are most likely to
2291  * have embedded spaces.
2292  */
2293  if (setenv("PGDATA", pg_data, 1) != 0)
2294  {
2295  pg_log_error("could not set environment");
2296  exit(1);
2297  }
2298 }
2299 
2300 
2301 void
2303 {
2304  int ret;
2305 
2306  if ((ret = find_other_exec(argv0, "postgres", PG_BACKEND_VERSIONSTR,
2307  backend_exec)) < 0)
2308  {
2309  char full_path[MAXPGPATH];
2310 
2311  if (find_my_exec(argv0, full_path) < 0)
2312  strlcpy(full_path, progname, sizeof(full_path));
2313 
2314  if (ret == -1)
2315  pg_log_error("The program \"%s\" is needed by %s but was not found in the\n"
2316  "same directory as \"%s\".\n"
2317  "Check your installation.",
2318  "postgres", progname, full_path);
2319  else
2320  pg_log_error("The program \"%s\" was found by \"%s\"\n"
2321  "but was not the same version as %s.\n"
2322  "Check your installation.",
2323  "postgres", full_path, progname);
2324  exit(1);
2325  }
2326 
2327  /* store binary directory */
2328  strcpy(bin_path, backend_exec);
2329  *last_dir_separator(bin_path) = '\0';
2331 
2332  if (!share_path)
2333  {
2336  }
2337  else if (!is_absolute_path(share_path))
2338  {
2339  pg_log_error("input file location must be an absolute path");
2340  exit(1);
2341  }
2342 
2344 }
2345 
2346 void
2348 {
2349  setlocales();
2350 
2351  if (strcmp(lc_ctype, lc_collate) == 0 &&
2352  strcmp(lc_ctype, lc_time) == 0 &&
2353  strcmp(lc_ctype, lc_numeric) == 0 &&
2354  strcmp(lc_ctype, lc_monetary) == 0 &&
2355  strcmp(lc_ctype, lc_messages) == 0)
2356  printf(_("The database cluster will be initialized with locale \"%s\".\n"), lc_ctype);
2357  else
2358  {
2359  printf(_("The database cluster will be initialized with locales\n"
2360  " COLLATE: %s\n"
2361  " CTYPE: %s\n"
2362  " MESSAGES: %s\n"
2363  " MONETARY: %s\n"
2364  " NUMERIC: %s\n"
2365  " TIME: %s\n"),
2366  lc_collate,
2367  lc_ctype,
2368  lc_messages,
2369  lc_monetary,
2370  lc_numeric,
2371  lc_time);
2372  }
2373 
2374  if (!encoding)
2375  {
2376  int ctype_enc;
2377 
2378  ctype_enc = pg_get_encoding_from_locale(lc_ctype, true);
2379 
2380  if (ctype_enc == -1)
2381  {
2382  /* Couldn't recognize the locale's codeset */
2383  pg_log_error("could not find suitable encoding for locale \"%s\"",
2384  lc_ctype);
2385  fprintf(stderr, _("Rerun %s with the -E option.\n"), progname);
2386  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
2387  progname);
2388  exit(1);
2389  }
2390  else if (!pg_valid_server_encoding_id(ctype_enc))
2391  {
2392  /*
2393  * We recognized it, but it's not a legal server encoding. On
2394  * Windows, UTF-8 works with any locale, so we can fall back to
2395  * UTF-8.
2396  */
2397 #ifdef WIN32
2398  encodingid = PG_UTF8;
2399  printf(_("Encoding \"%s\" implied by locale is not allowed as a server-side encoding.\n"
2400  "The default database encoding will be set to \"%s\" instead.\n"),
2401  pg_encoding_to_char(ctype_enc),
2403 #else
2404  pg_log_error("locale \"%s\" requires unsupported encoding \"%s\"",
2405  lc_ctype, pg_encoding_to_char(ctype_enc));
2406  fprintf(stderr,
2407  _("Encoding \"%s\" is not allowed as a server-side encoding.\n"
2408  "Rerun %s with a different locale selection.\n"),
2409  pg_encoding_to_char(ctype_enc), progname);
2410  exit(1);
2411 #endif
2412  }
2413  else
2414  {
2415  encodingid = ctype_enc;
2416  printf(_("The default database encoding has accordingly been set to \"%s\".\n"),
2418  }
2419  }
2420  else
2422 
2425  exit(1); /* check_locale_encoding printed the error */
2426 
2427 }
2428 
2429 
2430 void
2432 {
2433  set_input(&bki_file, "postgres.bki");
2434  set_input(&hba_file, "pg_hba.conf.sample");
2435  set_input(&ident_file, "pg_ident.conf.sample");
2436  set_input(&conf_file, "postgresql.conf.sample");
2437  set_input(&dictionary_file, "snowball_create.sql");
2438  set_input(&info_schema_file, "information_schema.sql");
2439  set_input(&features_file, "sql_features.txt");
2440  set_input(&system_constraints_file, "system_constraints.sql");
2441  set_input(&system_functions_file, "system_functions.sql");
2442  set_input(&system_views_file, "system_views.sql");
2443 
2444  if (show_setting || debug)
2445  {
2446  fprintf(stderr,
2447  "VERSION=%s\n"
2448  "PGDATA=%s\nshare_path=%s\nPGPATH=%s\n"
2449  "POSTGRES_SUPERUSERNAME=%s\nPOSTGRES_BKI=%s\n"
2450  "POSTGRESQL_CONF_SAMPLE=%s\n"
2451  "PG_HBA_SAMPLE=%s\nPG_IDENT_SAMPLE=%s\n",
2452  PG_VERSION,
2454  username, bki_file,
2455  conf_file,
2456  hba_file, ident_file);
2457  if (show_setting)
2458  exit(0);
2459  }
2460 
2471 }
2472 
2473 
2474 void
2476 {
2478  {
2481  {
2482  pg_log_info("could not find suitable text search configuration for locale \"%s\"",
2483  lc_ctype);
2484  default_text_search_config = "simple";
2485  }
2486  }
2487  else
2488  {
2489  const char *checkmatch = find_matching_ts_config(lc_ctype);
2490 
2491  if (checkmatch == NULL)
2492  {
2493  pg_log_warning("suitable text search configuration for locale \"%s\" is unknown",
2494  lc_ctype);
2495  }
2496  else if (strcmp(checkmatch, default_text_search_config) != 0)
2497  {
2498  pg_log_warning("specified text search configuration \"%s\" might not match locale \"%s\"",
2500  }
2501  }
2502 
2503  printf(_("The default text search configuration will be set to \"%s\".\n"),
2505 
2506 }
2507 
2508 
2509 void
2511 {
2512  /* some of these are not valid on Windows */
2513 #ifdef SIGHUP
2515 #endif
2516 #ifdef SIGINT
2517  pqsignal(SIGINT, trapsig);
2518 #endif
2519 #ifdef SIGQUIT
2521 #endif
2522 #ifdef SIGTERM
2523  pqsignal(SIGTERM, trapsig);
2524 #endif
2525 
2526  /* Ignore SIGPIPE when writing to backend, so we can clean up */
2527 #ifdef SIGPIPE
2529 #endif
2530 
2531  /* Prevent SIGSYS so we can probe for kernel calls that might not work */
2532 #ifdef SIGSYS
2533  pqsignal(SIGSYS, SIG_IGN);
2534 #endif
2535 }
2536 
2537 
2538 void
2540 {
2541  int ret;
2542 
2543  switch ((ret = pg_check_dir(pg_data)))
2544  {
2545  case 0:
2546  /* PGDATA not there, must create it */
2547  printf(_("creating directory %s ... "),
2548  pg_data);
2549  fflush(stdout);
2550 
2552  {
2553  pg_log_error("could not create directory \"%s\": %m", pg_data);
2554  exit(1);
2555  }
2556  else
2557  check_ok();
2558 
2559  made_new_pgdata = true;
2560  break;
2561 
2562  case 1:
2563  /* Present but empty, fix permissions and use it */
2564  printf(_("fixing permissions on existing directory %s ... "),
2565  pg_data);
2566  fflush(stdout);
2567 
2568  if (chmod(pg_data, pg_dir_create_mode) != 0)
2569  {
2570  pg_log_error("could not change permissions of directory \"%s\": %m",
2571  pg_data);
2572  exit(1);
2573  }
2574  else
2575  check_ok();
2576 
2577  found_existing_pgdata = true;
2578  break;
2579 
2580  case 2:
2581  case 3:
2582  case 4:
2583  /* Present and not empty */
2584  pg_log_error("directory \"%s\" exists but is not empty", pg_data);
2585  if (ret != 4)
2586  warn_on_mount_point(ret);
2587  else
2588  fprintf(stderr,
2589  _("If you want to create a new database system, either remove or empty\n"
2590  "the directory \"%s\" or run %s\n"
2591  "with an argument other than \"%s\".\n"),
2593  exit(1); /* no further message needed */
2594 
2595  default:
2596  /* Trouble accessing directory */
2597  pg_log_error("could not access directory \"%s\": %m", pg_data);
2598  exit(1);
2599  }
2600 }
2601 
2602 
2603 /* Create WAL directory, and symlink if required */
2604 void
2606 {
2607  char *subdirloc;
2608 
2609  /* form name of the place for the subdirectory or symlink */
2610  subdirloc = psprintf("%s/pg_wal", pg_data);
2611 
2612  if (xlog_dir)
2613  {
2614  int ret;
2615 
2616  /* clean up xlog directory name, check it's absolute */
2618  if (!is_absolute_path(xlog_dir))
2619  {
2620  pg_log_error("WAL directory location must be an absolute path");
2621  exit(1);
2622  }
2623 
2624  /* check if the specified xlog directory exists/is empty */
2625  switch ((ret = pg_check_dir(xlog_dir)))
2626  {
2627  case 0:
2628  /* xlog directory not there, must create it */
2629  printf(_("creating directory %s ... "),
2630  xlog_dir);
2631  fflush(stdout);
2632 
2634  {
2635  pg_log_error("could not create directory \"%s\": %m",
2636  xlog_dir);
2637  exit(1);
2638  }
2639  else
2640  check_ok();
2641 
2642  made_new_xlogdir = true;
2643  break;
2644 
2645  case 1:
2646  /* Present but empty, fix permissions and use it */
2647  printf(_("fixing permissions on existing directory %s ... "),
2648  xlog_dir);
2649  fflush(stdout);
2650 
2651  if (chmod(xlog_dir, pg_dir_create_mode) != 0)
2652  {
2653  pg_log_error("could not change permissions of directory \"%s\": %m",
2654  xlog_dir);
2655  exit(1);
2656  }
2657  else
2658  check_ok();
2659 
2660  found_existing_xlogdir = true;
2661  break;
2662 
2663  case 2:
2664  case 3:
2665  case 4:
2666  /* Present and not empty */
2667  pg_log_error("directory \"%s\" exists but is not empty", xlog_dir);
2668  if (ret != 4)
2669  warn_on_mount_point(ret);
2670  else
2671  fprintf(stderr,
2672  _("If you want to store the WAL there, either remove or empty the directory\n"
2673  "\"%s\".\n"),
2674  xlog_dir);
2675  exit(1);
2676 
2677  default:
2678  /* Trouble accessing directory */
2679  pg_log_error("could not access directory \"%s\": %m", xlog_dir);
2680  exit(1);
2681  }
2682 
2683 #ifdef HAVE_SYMLINK
2684  if (symlink(xlog_dir, subdirloc) != 0)
2685  {
2686  pg_log_error("could not create symbolic link \"%s\": %m",
2687  subdirloc);
2688  exit(1);
2689  }
2690 #else
2691  pg_log_error("symlinks are not supported on this platform");
2692  exit(1);
2693 #endif
2694  }
2695  else
2696  {
2697  /* Without -X option, just make the subdirectory normally */
2698  if (mkdir(subdirloc, pg_dir_create_mode) < 0)
2699  {
2700  pg_log_error("could not create directory \"%s\": %m",
2701  subdirloc);
2702  exit(1);
2703  }
2704  }
2705 
2706  free(subdirloc);
2707 }
2708 
2709 
2710 void
2712 {
2713  if (error == 2)
2714  fprintf(stderr,
2715  _("It contains a dot-prefixed/invisible file, perhaps due to it being a mount point.\n"));
2716  else if (error == 3)
2717  fprintf(stderr,
2718  _("It contains a lost+found directory, perhaps due to it being a mount point.\n"));
2719 
2720  fprintf(stderr,
2721  _("Using a mount point directly as the data directory is not recommended.\n"
2722  "Create a subdirectory under the mount point.\n"));
2723 }
2724 
2725 
2726 void
2728 {
2729  PG_CMD_DECL;
2730  int i;
2731 
2732  setup_signals();
2733 
2734  /*
2735  * Set mask based on requested PGDATA permissions. pg_mode_mask, and
2736  * friends like pg_dir_create_mode, are set to owner-only by default and
2737  * then updated if -g is passed in by calling SetDataDirectoryCreatePerm()
2738  * when parsing our options (see above).
2739  */
2740  umask(pg_mode_mask);
2741 
2743 
2745 
2746  /* Create required subdirectories (other than pg_wal) */
2747  printf(_("creating subdirectories ... "));
2748  fflush(stdout);
2749 
2750  for (i = 0; i < lengthof(subdirs); i++)
2751  {
2752  char *path;
2753 
2754  path = psprintf("%s/%s", pg_data, subdirs[i]);
2755 
2756  /*
2757  * The parent directory already exists, so we only need mkdir() not
2758  * pg_mkdir_p() here, which avoids some failure modes; cf bug #13853.
2759  */
2760  if (mkdir(path, pg_dir_create_mode) < 0)
2761  {
2762  pg_log_error("could not create directory \"%s\": %m", path);
2763  exit(1);
2764  }
2765 
2766  free(path);
2767  }
2768 
2769  check_ok();
2770 
2771  /* Top level PG_VERSION is checked by bootstrapper, so make it first */
2772  write_version_file(NULL);
2773 
2774  /* Select suitable configuration settings */
2775  set_null_conf();
2777 
2778  /* Now create all the text config files */
2779  setup_config();
2780 
2781  /* Bootstrap template1 */
2783 
2784  /*
2785  * Make the per-database PG_VERSION for template1 only after init'ing it
2786  */
2787  write_version_file("base/1");
2788 
2789  /*
2790  * Create the stuff we don't need to use bootstrap mode for, using a
2791  * backend running in simple standalone mode.
2792  */
2793  fputs(_("performing post-bootstrap initialization ... "), stdout);
2794  fflush(stdout);
2795 
2796  snprintf(cmd, sizeof(cmd),
2797  "\"%s\" %s %s template1 >%s",
2799  DEVNULL);
2800 
2801  PG_CMD_OPEN;
2802 
2803  setup_auth(cmdfd);
2804 
2806 
2808 
2809  setup_depend(cmdfd);
2810 
2811  /*
2812  * Note that no objects created after setup_depend() will be "pinned".
2813  * They are all droppable at the whim of the DBA.
2814  */
2815 
2817 
2818  setup_description(cmdfd);
2819 
2820  setup_collation(cmdfd);
2821 
2823 
2824  setup_privileges(cmdfd);
2825 
2826  setup_schema(cmdfd);
2827 
2828  load_plpgsql(cmdfd);
2829 
2830  vacuum_db(cmdfd);
2831 
2832  make_template0(cmdfd);
2833 
2834  make_postgres(cmdfd);
2835 
2836  PG_CMD_CLOSE;
2837 
2838  check_ok();
2839 }
2840 
2841 
2842 int
2843 main(int argc, char *argv[])
2844 {
2845  static struct option long_options[] = {
2846  {"pgdata", required_argument, NULL, 'D'},
2847  {"encoding", required_argument, NULL, 'E'},
2848  {"locale", required_argument, NULL, 1},
2849  {"lc-collate", required_argument, NULL, 2},
2850  {"lc-ctype", required_argument, NULL, 3},
2851  {"lc-monetary", required_argument, NULL, 4},
2852  {"lc-numeric", required_argument, NULL, 5},
2853  {"lc-time", required_argument, NULL, 6},
2854  {"lc-messages", required_argument, NULL, 7},
2855  {"no-locale", no_argument, NULL, 8},
2856  {"text-search-config", required_argument, NULL, 'T'},
2857  {"auth", required_argument, NULL, 'A'},
2858  {"auth-local", required_argument, NULL, 10},
2859  {"auth-host", required_argument, NULL, 11},
2860  {"pwprompt", no_argument, NULL, 'W'},
2861  {"pwfile", required_argument, NULL, 9},
2862  {"username", required_argument, NULL, 'U'},
2863  {"help", no_argument, NULL, '?'},
2864  {"version", no_argument, NULL, 'V'},
2865  {"debug", no_argument, NULL, 'd'},
2866  {"show", no_argument, NULL, 's'},
2867  {"noclean", no_argument, NULL, 'n'}, /* for backwards compatibility */
2868  {"no-clean", no_argument, NULL, 'n'},
2869  {"nosync", no_argument, NULL, 'N'}, /* for backwards compatibility */
2870  {"no-sync", no_argument, NULL, 'N'},
2871  {"no-instructions", no_argument, NULL, 13},
2872  {"sync-only", no_argument, NULL, 'S'},
2873  {"waldir", required_argument, NULL, 'X'},
2874  {"wal-segsize", required_argument, NULL, 12},
2875  {"data-checksums", no_argument, NULL, 'k'},
2876  {"allow-group-access", no_argument, NULL, 'g'},
2877  {"discard-caches", no_argument, NULL, 14},
2878  {NULL, 0, NULL, 0}
2879  };
2880 
2881  /*
2882  * options with no short version return a low integer, the rest return
2883  * their short version value
2884  */
2885  int c;
2886  int option_index;
2887  char *effective_user;
2888  PQExpBuffer start_db_cmd;
2889  char pg_ctl_path[MAXPGPATH];
2890 
2891  /*
2892  * Ensure that buffering behavior of stdout matches what it is in
2893  * interactive usage (at least on most platforms). This prevents
2894  * unexpected output ordering when, eg, output is redirected to a file.
2895  * POSIX says we must do this before any other usage of these files.
2896  */
2897  setvbuf(stdout, NULL, PG_IOLBF, 0);
2898 
2899  pg_logging_init(argv[0]);
2900  progname = get_progname(argv[0]);
2901  set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("initdb"));
2902 
2903  if (argc > 1)
2904  {
2905  if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
2906  {
2907  usage(progname);
2908  exit(0);
2909  }
2910  if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
2911  {
2912  puts("initdb (PostgreSQL) " PG_VERSION);
2913  exit(0);
2914  }
2915  }
2916 
2917  /* process command-line options */
2918 
2919  while ((c = getopt_long(argc, argv, "A:dD:E:gkL:nNsST:U:WX:", long_options, &option_index)) != -1)
2920  {
2921  switch (c)
2922  {
2923  case 'A':
2925 
2926  /*
2927  * When ident is specified, use peer for local connections.
2928  * Mirrored, when peer is specified, use ident for TCP/IP
2929  * connections.
2930  */
2931  if (strcmp(authmethodhost, "ident") == 0)
2932  authmethodlocal = "peer";
2933  else if (strcmp(authmethodlocal, "peer") == 0)
2934  authmethodhost = "ident";
2935  break;
2936  case 10:
2938  break;
2939  case 11:
2941  break;
2942  case 'D':
2944  break;
2945  case 'E':
2947  break;
2948  case 'W':
2949  pwprompt = true;
2950  break;
2951  case 'U':
2953  break;
2954  case 'd':
2955  debug = true;
2956  printf(_("Running in debug mode.\n"));
2957  break;
2958  case 'n':
2959  noclean = true;
2960  printf(_("Running in no-clean mode. Mistakes will not be cleaned up.\n"));
2961  break;
2962  case 'N':
2963  do_sync = false;
2964  break;
2965  case 'S':
2966  sync_only = true;
2967  break;
2968  case 'k':
2969  data_checksums = true;
2970  break;
2971  case 'L':
2973  break;
2974  case 1:
2975  locale = pg_strdup(optarg);
2976  break;
2977  case 2:
2979  break;
2980  case 3:
2982  break;
2983  case 4:
2985  break;
2986  case 5:
2988  break;
2989  case 6:
2991  break;
2992  case 7:
2994  break;
2995  case 8:
2996  locale = "C";
2997  break;
2998  case 9:
3000  break;
3001  case 's':
3002  show_setting = true;
3003  break;
3004  case 'T':
3006  break;
3007  case 'X':
3009  break;
3010  case 12:
3012  break;
3013  case 13:
3014  noinstructions = true;
3015  break;
3016  case 'g':
3018  break;
3019  case 14:
3020  extra_options = psprintf("%s %s",
3021  extra_options,
3022  "-c debug_discard_caches=1");
3023  break;
3024  default:
3025  /* getopt_long already emitted a complaint */
3026  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
3027  progname);
3028  exit(1);
3029  }
3030  }
3031 
3032 
3033  /*
3034  * Non-option argument specifies data directory as long as it wasn't
3035  * already specified with -D / --pgdata
3036  */
3037  if (optind < argc && !pg_data)
3038  {
3039  pg_data = pg_strdup(argv[optind]);
3040  optind++;
3041  }
3042 
3043  if (optind < argc)
3044  {
3045  pg_log_error("too many command-line arguments (first is \"%s\")",
3046  argv[optind]);
3047  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
3048  progname);
3049  exit(1);
3050  }
3051 
3053 
3054  /* If we only need to fsync, just do it and exit */
3055  if (sync_only)
3056  {
3057  setup_pgdata();
3058 
3059  /* must check that directory is readable */
3060  if (pg_check_dir(pg_data) <= 0)
3061  {
3062  pg_log_error("could not access directory \"%s\": %m", pg_data);
3063  exit(1);
3064  }
3065 
3066  fputs(_("syncing data to disk ... "), stdout);
3067  fflush(stdout);
3068  fsync_pgdata(pg_data, PG_VERSION_NUM);
3069  check_ok();
3070  return 0;
3071  }
3072 
3073  if (pwprompt && pwfilename)
3074  {
3075  pg_log_error("password prompt and password file cannot be specified together");
3076  exit(1);
3077  }
3078 
3081 
3084 
3086 
3087  /* set wal segment size */
3088  if (str_wal_segment_size_mb == NULL)
3089  wal_segment_size_mb = (DEFAULT_XLOG_SEG_SIZE) / (1024 * 1024);
3090  else
3091  {
3092  char *endptr;
3093 
3094  /* check that the argument is a number */
3095  wal_segment_size_mb = strtol(str_wal_segment_size_mb, &endptr, 10);
3096 
3097  /* verify that wal segment size is valid */
3098  if (endptr == str_wal_segment_size_mb || *endptr != '\0')
3099  {
3100  pg_log_error("argument of --wal-segsize must be a number");
3101  exit(1);
3102  }
3103  if (!IsValidWalSegSize(wal_segment_size_mb * 1024 * 1024))
3104  {
3105  pg_log_error("argument of --wal-segsize must be a power of 2 between 1 and 1024");
3106  exit(1);
3107  }
3108  }
3109 
3111 
3112  setup_pgdata();
3113 
3114  setup_bin_paths(argv[0]);
3115 
3116  effective_user = get_id();
3117  if (!username)
3118  username = effective_user;
3119 
3120  if (strncmp(username, "pg_", 3) == 0)
3121  {
3122  pg_log_error("superuser name \"%s\" is disallowed; role names cannot begin with \"pg_\"", username);
3123  exit(1);
3124  }
3125 
3126  printf(_("The files belonging to this database system will be owned "
3127  "by user \"%s\".\n"
3128  "This user must also own the server process.\n\n"),
3129  effective_user);
3130 
3131  set_info_version();
3132 
3134 
3136 
3138 
3139  printf("\n");
3140 
3141  if (data_checksums)
3142  printf(_("Data page checksums are enabled.\n"));
3143  else
3144  printf(_("Data page checksums are disabled.\n"));
3145 
3146  if (pwprompt || pwfilename)
3147  get_su_pwd();
3148 
3149  printf("\n");
3150 
3152 
3153  if (do_sync)
3154  {
3155  fputs(_("syncing data to disk ... "), stdout);
3156  fflush(stdout);
3157  fsync_pgdata(pg_data, PG_VERSION_NUM);
3158  check_ok();
3159  }
3160  else
3161  printf(_("\nSync to disk skipped.\nThe data directory might become corrupt if the operating system crashes.\n"));
3162 
3163  if (authwarning)
3164  {
3165  printf("\n");
3166  pg_log_warning("enabling \"trust\" authentication for local connections");
3167  fprintf(stderr, _("You can change this by editing pg_hba.conf or using the option -A, or\n"
3168  "--auth-local and --auth-host, the next time you run initdb.\n"));
3169  }
3170 
3171  if (!noinstructions)
3172  {
3173  /*
3174  * Build up a shell command to tell the user how to start the server
3175  */
3176  start_db_cmd = createPQExpBuffer();
3177 
3178  /* Get directory specification used to start initdb ... */
3179  strlcpy(pg_ctl_path, argv[0], sizeof(pg_ctl_path));
3180  canonicalize_path(pg_ctl_path);
3181  get_parent_directory(pg_ctl_path);
3182  /* ... and tag on pg_ctl instead */
3183  join_path_components(pg_ctl_path, pg_ctl_path, "pg_ctl");
3184 
3185  /* Convert the path to use native separators */
3186  make_native_path(pg_ctl_path);
3187 
3188  /* path to pg_ctl, properly quoted */
3189  appendShellString(start_db_cmd, pg_ctl_path);
3190 
3191  /* add -D switch, with properly quoted data directory */
3192  appendPQExpBufferStr(start_db_cmd, " -D ");
3193  appendShellString(start_db_cmd, pgdata_native);
3194 
3195  /* add suggested -l switch and "start" command */
3196  /* translator: This is a placeholder in a shell command. */
3197  appendPQExpBuffer(start_db_cmd, " -l %s start", _("logfile"));
3198 
3199  printf(_("\nSuccess. You can now start the database server using:\n\n"
3200  " %s\n\n"),
3201  start_db_cmd->data);
3202 
3203  destroyPQExpBuffer(start_db_cmd);
3204  }
3205 
3206 
3207  success = true;
3208  return 0;
3209 }
static int encodingid
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static void writefile(char *path, char **lines)
Definition: initdb.c:501
char * optarg
Definition: getopt.c:52
static void setup_privileges(FILE *cmdfd)
Definition: initdb.c:1620
static void make_postgres(FILE *cmdfd)
Definition: initdb.c:1875
int pg_check_dir(const char *dir)
Definition: pgcheckdir.c:31
static char bin_path[MAXPGPATH]
Definition: initdb.c:235
static void usage(const char *progname)
Definition: initdb.c:2169
void SetDataDirectoryCreatePerm(int dataDirMode)
Definition: file_perm.c:34
int i
static void check_need_password(const char *authmethodlocal, const char *authmethodhost)
Definition: initdb.c:2244
static char backend_exec[MAXPGPATH]
Definition: initdb.c:236
static char * ident_file
Definition: initdb.c:157
static char * locale
Definition: initdb.c:126
static char ** readfile(const char *path)
Definition: initdb.c:454
void srandom(unsigned int seed)
Definition: srandom.c:22
char * pg_get_line(FILE *stream)
Definition: pg_get_line.c:52
static char * bki_file
Definition: initdb.c:155
static const char * authmethodhost
Definition: initdb.c:138
size_t ai_addrlen
Definition: getaddrinfo.h:104
static bool sync_only
Definition: initdb.c:144
#define mkdir(a, b)
Definition: win32_port.h:63
static char version_file[MAXPGPATH]
Definition: pg_ctl.c:102
#define close(a)
Definition: win32.h:12
#define pg_log_warning(...)
Definition: pgfnames.c:24
int ai_flags
Definition: getaddrinfo.h:100
static void static void status(const char *fmt,...) pg_attribute_printf(1
Definition: pg_regress.c:227
static const char *const auth_methods_local[]
Definition: initdb.c:104
static bool success
Definition: initdb.c:165
static void check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
Definition: initdb.c:2224
void get_share_path(const char *my_exec_path, char *ret_path)
Definition: path.c:704
#define snprintf
Definition: port.h:216
void setup_pgdata(void)
Definition: initdb.c:2261
#define _(x)
Definition: elog.c:89
int pg_mode_mask
Definition: file_perm.c:25
const char * langname
Definition: initdb.c:656
#define DEFAULT_MIN_WAL_SEGS
Definition: xlog_internal.h:89
static void trapsig(int signum)
Definition: initdb.c:1910
struct sockaddr * ai_addr
Definition: getaddrinfo.h:105
static char * escape_quotes_bki(const char *src)
Definition: initdb.c:344
static char * hba_file
Definition: initdb.c:156
#define DEFAULT_BACKEND_FLUSH_AFTER
#define pg_log_info(...)
Definition: logging.h:88
#define stat
Definition: win32_port.h:275
#define unsetenv(x)
Definition: win32_port.h:498
static void set_info_version(void)
Definition: initdb.c:1771
#define DEFAULT_PGSOCKET_DIR
static bool show_setting
Definition: initdb.c:145
static bool noinstructions
Definition: initdb.c:142
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Definition: initdb.c:772
static bool noclean
Definition: initdb.c:141
const char * get_user_name_or_exit(const char *progname)
Definition: username.c:74
int ai_family
Definition: getaddrinfo.h:101