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\" --check %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\" --check %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 = 128MB", 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 -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, public TO PUBLIC;\n\n",
1637  "REVOKE ALL ON pg_largeobject FROM PUBLIC;\n\n",
1638  "INSERT INTO pg_init_privs "
1639  " (objoid, classoid, objsubid, initprivs, privtype)"
1640  " SELECT"
1641  " oid,"
1642  " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
1643  " 0,"
1644  " relacl,"
1645  " 'i'"
1646  " FROM"
1647  " pg_class"
1648  " WHERE"
1649  " relacl IS NOT NULL"
1650  " AND relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1651  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1652  CppAsString2(RELKIND_SEQUENCE) ");\n\n",
1653  "INSERT INTO pg_init_privs "
1654  " (objoid, classoid, objsubid, initprivs, privtype)"
1655  " SELECT"
1656  " pg_class.oid,"
1657  " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
1658  " pg_attribute.attnum,"
1659  " pg_attribute.attacl,"
1660  " 'i'"
1661  " FROM"
1662  " pg_class"
1663  " JOIN pg_attribute ON (pg_class.oid = pg_attribute.attrelid)"
1664  " WHERE"
1665  " pg_attribute.attacl IS NOT NULL"
1666  " AND pg_class.relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1667  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1668  CppAsString2(RELKIND_SEQUENCE) ");\n\n",
1669  "INSERT INTO pg_init_privs "
1670  " (objoid, classoid, objsubid, initprivs, privtype)"
1671  " SELECT"
1672  " oid,"
1673  " (SELECT oid FROM pg_class WHERE relname = 'pg_proc'),"
1674  " 0,"
1675  " proacl,"
1676  " 'i'"
1677  " FROM"
1678  " pg_proc"
1679  " WHERE"
1680  " proacl IS NOT NULL;\n\n",
1681  "INSERT INTO pg_init_privs "
1682  " (objoid, classoid, objsubid, initprivs, privtype)"
1683  " SELECT"
1684  " oid,"
1685  " (SELECT oid FROM pg_class WHERE relname = 'pg_type'),"
1686  " 0,"
1687  " typacl,"
1688  " 'i'"
1689  " FROM"
1690  " pg_type"
1691  " WHERE"
1692  " typacl IS NOT NULL;\n\n",
1693  "INSERT INTO pg_init_privs "
1694  " (objoid, classoid, objsubid, initprivs, privtype)"
1695  " SELECT"
1696  " oid,"
1697  " (SELECT oid FROM pg_class WHERE relname = 'pg_language'),"
1698  " 0,"
1699  " lanacl,"
1700  " 'i'"
1701  " FROM"
1702  " pg_language"
1703  " WHERE"
1704  " lanacl IS NOT NULL;\n\n",
1705  "INSERT INTO pg_init_privs "
1706  " (objoid, classoid, objsubid, initprivs, privtype)"
1707  " SELECT"
1708  " oid,"
1709  " (SELECT oid FROM pg_class WHERE "
1710  " relname = 'pg_largeobject_metadata'),"
1711  " 0,"
1712  " lomacl,"
1713  " 'i'"
1714  " FROM"
1715  " pg_largeobject_metadata"
1716  " WHERE"
1717  " lomacl IS NOT NULL;\n\n",
1718  "INSERT INTO pg_init_privs "
1719  " (objoid, classoid, objsubid, initprivs, privtype)"
1720  " SELECT"
1721  " oid,"
1722  " (SELECT oid FROM pg_class WHERE relname = 'pg_namespace'),"
1723  " 0,"
1724  " nspacl,"
1725  " 'i'"
1726  " FROM"
1727  " pg_namespace"
1728  " WHERE"
1729  " nspacl IS NOT NULL;\n\n",
1730  "INSERT INTO pg_init_privs "
1731  " (objoid, classoid, objsubid, initprivs, privtype)"
1732  " SELECT"
1733  " oid,"
1734  " (SELECT oid FROM pg_class WHERE "
1735  " relname = 'pg_foreign_data_wrapper'),"
1736  " 0,"
1737  " fdwacl,"
1738  " 'i'"
1739  " FROM"
1740  " pg_foreign_data_wrapper"
1741  " WHERE"
1742  " fdwacl IS NOT NULL;\n\n",
1743  "INSERT INTO pg_init_privs "
1744  " (objoid, classoid, objsubid, initprivs, privtype)"
1745  " SELECT"
1746  " oid,"
1747  " (SELECT oid FROM pg_class "
1748  " WHERE relname = 'pg_foreign_server'),"
1749  " 0,"
1750  " srvacl,"
1751  " 'i'"
1752  " FROM"
1753  " pg_foreign_server"
1754  " WHERE"
1755  " srvacl IS NOT NULL;\n\n",
1756  NULL
1757  };
1758 
1759  priv_lines = replace_token(privileges_setup, "$POSTGRES_SUPERUSERNAME",
1761  for (line = priv_lines; *line != NULL; line++)
1762  PG_CMD_PUTS(*line);
1763 }
1764 
1765 /*
1766  * extract the strange version of version required for information schema
1767  * (09.08.0007abc)
1768  */
1769 static void
1771 {
1772  char *letterversion;
1773  long major = 0,
1774  minor = 0,
1775  micro = 0;
1776  char *endptr;
1777  char *vstr = pg_strdup(PG_VERSION);
1778  char *ptr;
1779 
1780  ptr = vstr + (strlen(vstr) - 1);
1781  while (ptr != vstr && (*ptr < '0' || *ptr > '9'))
1782  ptr--;
1783  letterversion = ptr + 1;
1784  major = strtol(vstr, &endptr, 10);
1785  if (*endptr)
1786  minor = strtol(endptr + 1, &endptr, 10);
1787  if (*endptr)
1788  micro = strtol(endptr + 1, &endptr, 10);
1789  snprintf(infoversion, sizeof(infoversion), "%02ld.%02ld.%04ld%s",
1790  major, minor, micro, letterversion);
1791 }
1792 
1793 /*
1794  * load info schema and populate from features file
1795  */
1796 static void
1797 setup_schema(FILE *cmdfd)
1798 {
1800 
1801  PG_CMD_PRINTF("UPDATE information_schema.sql_implementation_info "
1802  " SET character_value = '%s' "
1803  " WHERE implementation_info_name = 'DBMS VERSION';\n\n",
1804  infoversion);
1805 
1806  PG_CMD_PRINTF("COPY information_schema.sql_features "
1807  " (feature_id, feature_name, sub_feature_id, "
1808  " sub_feature_name, is_supported, comments) "
1809  " FROM E'%s';\n\n",
1811 }
1812 
1813 /*
1814  * load PL/pgSQL server-side language
1815  */
1816 static void
1817 load_plpgsql(FILE *cmdfd)
1818 {
1819  PG_CMD_PUTS("CREATE EXTENSION plpgsql;\n\n");
1820 }
1821 
1822 /*
1823  * clean everything up in template1
1824  */
1825 static void
1826 vacuum_db(FILE *cmdfd)
1827 {
1828  /* Run analyze before VACUUM so the statistics are frozen. */
1829  PG_CMD_PUTS("ANALYZE;\n\nVACUUM FREEZE;\n\n");
1830 }
1831 
1832 /*
1833  * copy template1 to template0
1834  */
1835 static void
1836 make_template0(FILE *cmdfd)
1837 {
1838  const char *const *line;
1839  static const char *const template0_setup[] = {
1840  "CREATE DATABASE template0 IS_TEMPLATE = true ALLOW_CONNECTIONS = false;\n\n",
1841 
1842  /*
1843  * We use the OID of template0 to determine datlastsysoid
1844  */
1845  "UPDATE pg_database SET datlastsysoid = "
1846  " (SELECT oid FROM pg_database "
1847  " WHERE datname = 'template0');\n\n",
1848 
1849  /*
1850  * Explicitly revoke public create-schema and create-temp-table
1851  * privileges in template1 and template0; else the latter would be on
1852  * by default
1853  */
1854  "REVOKE CREATE,TEMPORARY ON DATABASE template1 FROM public;\n\n",
1855  "REVOKE CREATE,TEMPORARY ON DATABASE template0 FROM public;\n\n",
1856 
1857  "COMMENT ON DATABASE template0 IS 'unmodifiable empty database';\n\n",
1858 
1859  /*
1860  * Finally vacuum to clean up dead rows in pg_database
1861  */
1862  "VACUUM pg_database;\n\n",
1863  NULL
1864  };
1865 
1866  for (line = template0_setup; *line; line++)
1867  PG_CMD_PUTS(*line);
1868 }
1869 
1870 /*
1871  * copy template1 to postgres
1872  */
1873 static void
1874 make_postgres(FILE *cmdfd)
1875 {
1876  const char *const *line;
1877  static const char *const postgres_setup[] = {
1878  "CREATE DATABASE postgres;\n\n",
1879  "COMMENT ON DATABASE postgres IS 'default administrative connection database';\n\n",
1880  NULL
1881  };
1882 
1883  for (line = postgres_setup; *line; line++)
1884  PG_CMD_PUTS(*line);
1885 }
1886 
1887 /*
1888  * signal handler in case we are interrupted.
1889  *
1890  * The Windows runtime docs at
1891  * https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/signal
1892  * specifically forbid a number of things being done from a signal handler,
1893  * including IO, memory allocation and system calls, and only allow jmpbuf
1894  * if you are handling SIGFPE.
1895  *
1896  * I avoided doing the forbidden things by setting a flag instead of calling
1897  * exit() directly.
1898  *
1899  * Also note the behaviour of Windows with SIGINT, which says this:
1900  * SIGINT is not supported for any Win32 application. When a CTRL+C interrupt
1901  * occurs, Win32 operating systems generate a new thread to specifically
1902  * handle that interrupt. This can cause a single-thread application, such as
1903  * one in UNIX, to become multithreaded and cause unexpected behavior.
1904  *
1905  * I have no idea how to handle this. (Strange they call UNIX an application!)
1906  * So this will need some testing on Windows.
1907  */
1908 static void
1909 trapsig(int signum)
1910 {
1911  /* handle systems that reset the handler, like Windows (grr) */
1912  pqsignal(signum, trapsig);
1913  caught_signal = true;
1914 }
1915 
1916 /*
1917  * call exit() if we got a signal, or else output "ok".
1918  */
1919 static void
1921 {
1922  if (caught_signal)
1923  {
1924  printf(_("caught signal\n"));
1925  fflush(stdout);
1926  exit(1);
1927  }
1928  else if (output_failed)
1929  {
1930  printf(_("could not write to child process: %s\n"),
1932  fflush(stdout);
1933  exit(1);
1934  }
1935  else
1936  {
1937  /* all seems well */
1938  printf(_("ok\n"));
1939  fflush(stdout);
1940  }
1941 }
1942 
1943 /* Hack to suppress a warning about %x from some versions of gcc */
1944 static inline size_t
1945 my_strftime(char *s, size_t max, const char *fmt, const struct tm *tm)
1946 {
1947  return strftime(s, max, fmt, tm);
1948 }
1949 
1950 /*
1951  * Determine likely date order from locale
1952  */
1953 static int
1955 {
1956  struct tm testtime;
1957  char buf[128];
1958  char *posD;
1959  char *posM;
1960  char *posY;
1961  char *save;
1962  size_t res;
1963  int result;
1964 
1965  result = DATEORDER_MDY; /* default */
1966 
1967  save = setlocale(LC_TIME, NULL);
1968  if (!save)
1969  return result;
1970  save = pg_strdup(save);
1971 
1972  setlocale(LC_TIME, locale);
1973 
1974  memset(&testtime, 0, sizeof(testtime));
1975  testtime.tm_mday = 22;
1976  testtime.tm_mon = 10; /* November, should come out as "11" */
1977  testtime.tm_year = 133; /* 2033 */
1978 
1979  res = my_strftime(buf, sizeof(buf), "%x", &testtime);
1980 
1981  setlocale(LC_TIME, save);
1982  free(save);
1983 
1984  if (res == 0)
1985  return result;
1986 
1987  posM = strstr(buf, "11");
1988  posD = strstr(buf, "22");
1989  posY = strstr(buf, "33");
1990 
1991  if (!posM || !posD || !posY)
1992  return result;
1993 
1994  if (posY < posM && posM < posD)
1995  result = DATEORDER_YMD;
1996  else if (posD < posM)
1997  result = DATEORDER_DMY;
1998  else
1999  result = DATEORDER_MDY;
2000 
2001  return result;
2002 }
2003 
2004 /*
2005  * Verify that locale name is valid for the locale category.
2006  *
2007  * If successful, and canonname isn't NULL, a malloc'd copy of the locale's
2008  * canonical name is stored there. This is especially useful for figuring out
2009  * what locale name "" means (ie, the environment value). (Actually,
2010  * it seems that on most implementations that's the only thing it's good for;
2011  * we could wish that setlocale gave back a canonically spelled version of
2012  * the locale name, but typically it doesn't.)
2013  *
2014  * this should match the backend's check_locale() function
2015  */
2016 static void
2017 check_locale_name(int category, const char *locale, char **canonname)
2018 {
2019  char *save;
2020  char *res;
2021 
2022  if (canonname)
2023  *canonname = NULL; /* in case of failure */
2024 
2025  save = setlocale(category, NULL);
2026  if (!save)
2027  {
2028  pg_log_error("setlocale() failed");
2029  exit(1);
2030  }
2031 
2032  /* save may be pointing at a modifiable scratch variable, so copy it. */
2033  save = pg_strdup(save);
2034 
2035  /* for setlocale() call */
2036  if (!locale)
2037  locale = "";
2038 
2039  /* set the locale with setlocale, to see if it accepts it. */
2040  res = setlocale(category, locale);
2041 
2042  /* save canonical name if requested. */
2043  if (res && canonname)
2044  *canonname = pg_strdup(res);
2045 
2046  /* restore old value. */
2047  if (!setlocale(category, save))
2048  {
2049  pg_log_error("failed to restore old locale \"%s\"", save);
2050  exit(1);
2051  }
2052  free(save);
2053 
2054  /* complain if locale wasn't valid */
2055  if (res == NULL)
2056  {
2057  if (*locale)
2058  pg_log_error("invalid locale name \"%s\"", locale);
2059  else
2060  {
2061  /*
2062  * If no relevant switch was given on command line, locale is an
2063  * empty string, which is not too helpful to report. Presumably
2064  * setlocale() found something it did not like in the environment.
2065  * Ideally we'd report the bad environment variable, but since
2066  * setlocale's behavior is implementation-specific, it's hard to
2067  * be sure what it didn't like. Print a safe generic message.
2068  */
2069  pg_log_error("invalid locale settings; check LANG and LC_* environment variables");
2070  }
2071  exit(1);
2072  }
2073 }
2074 
2075 /*
2076  * check if the chosen encoding matches the encoding required by the locale
2077  *
2078  * this should match the similar check in the backend createdb() function
2079  */
2080 static bool
2081 check_locale_encoding(const char *locale, int user_enc)
2082 {
2083  int locale_enc;
2084 
2085  locale_enc = pg_get_encoding_from_locale(locale, true);
2086 
2087  /* See notes in createdb() to understand these tests */
2088  if (!(locale_enc == user_enc ||
2089  locale_enc == PG_SQL_ASCII ||
2090  locale_enc == -1 ||
2091 #ifdef WIN32
2092  user_enc == PG_UTF8 ||
2093 #endif
2094  user_enc == PG_SQL_ASCII))
2095  {
2096  pg_log_error("encoding mismatch");
2097  fprintf(stderr,
2098  _("The encoding you selected (%s) and the encoding that the\n"
2099  "selected locale uses (%s) do not match. This would lead to\n"
2100  "misbehavior in various character string processing functions.\n"
2101  "Rerun %s and either do not specify an encoding explicitly,\n"
2102  "or choose a matching combination.\n"),
2103  pg_encoding_to_char(user_enc),
2104  pg_encoding_to_char(locale_enc),
2105  progname);
2106  return false;
2107  }
2108  return true;
2109 }
2110 
2111 /*
2112  * set up the locale variables
2113  *
2114  * assumes we have called setlocale(LC_ALL, "") -- see set_pglocale_pgservice
2115  */
2116 static void
2118 {
2119  char *canonname;
2120 
2121  /* set empty lc_* values to locale config if set */
2122 
2123  if (locale)
2124  {
2125  if (!lc_ctype)
2126  lc_ctype = locale;
2127  if (!lc_collate)
2128  lc_collate = locale;
2129  if (!lc_numeric)
2130  lc_numeric = locale;
2131  if (!lc_time)
2132  lc_time = locale;
2133  if (!lc_monetary)
2134  lc_monetary = locale;
2135  if (!lc_messages)
2136  lc_messages = locale;
2137  }
2138 
2139  /*
2140  * canonicalize locale names, and obtain any missing values from our
2141  * current environment
2142  */
2143 
2144  check_locale_name(LC_CTYPE, lc_ctype, &canonname);
2145  lc_ctype = canonname;
2146  check_locale_name(LC_COLLATE, lc_collate, &canonname);
2147  lc_collate = canonname;
2148  check_locale_name(LC_NUMERIC, lc_numeric, &canonname);
2149  lc_numeric = canonname;
2150  check_locale_name(LC_TIME, lc_time, &canonname);
2151  lc_time = canonname;
2152  check_locale_name(LC_MONETARY, lc_monetary, &canonname);
2153  lc_monetary = canonname;
2154 #if defined(LC_MESSAGES) && !defined(WIN32)
2155  check_locale_name(LC_MESSAGES, lc_messages, &canonname);
2156  lc_messages = canonname;
2157 #else
2158  /* when LC_MESSAGES is not available, use the LC_CTYPE setting */
2159  check_locale_name(LC_CTYPE, lc_messages, &canonname);
2160  lc_messages = canonname;
2161 #endif
2162 }
2163 
2164 /*
2165  * print help text
2166  */
2167 static void
2168 usage(const char *progname)
2169 {
2170  printf(_("%s initializes a PostgreSQL database cluster.\n\n"), progname);
2171  printf(_("Usage:\n"));
2172  printf(_(" %s [OPTION]... [DATADIR]\n"), progname);
2173  printf(_("\nOptions:\n"));
2174  printf(_(" -A, --auth=METHOD default authentication method for local connections\n"));
2175  printf(_(" --auth-host=METHOD default authentication method for local TCP/IP connections\n"));
2176  printf(_(" --auth-local=METHOD default authentication method for local-socket connections\n"));
2177  printf(_(" [-D, --pgdata=]DATADIR location for this database cluster\n"));
2178  printf(_(" -E, --encoding=ENCODING set default encoding for new databases\n"));
2179  printf(_(" -g, --allow-group-access allow group read/execute on data directory\n"));
2180  printf(_(" -k, --data-checksums use data page checksums\n"));
2181  printf(_(" --locale=LOCALE set default locale for new databases\n"));
2182  printf(_(" --lc-collate=, --lc-ctype=, --lc-messages=LOCALE\n"
2183  " --lc-monetary=, --lc-numeric=, --lc-time=LOCALE\n"
2184  " set default locale in the respective category for\n"
2185  " new databases (default taken from environment)\n"));
2186  printf(_(" --no-locale equivalent to --locale=C\n"));
2187  printf(_(" --pwfile=FILE read password for the new superuser from file\n"));
2188  printf(_(" -T, --text-search-config=CFG\n"
2189  " default text search configuration\n"));
2190  printf(_(" -U, --username=NAME database superuser name\n"));
2191  printf(_(" -W, --pwprompt prompt for a password for the new superuser\n"));
2192  printf(_(" -X, --waldir=WALDIR location for the write-ahead log directory\n"));
2193  printf(_(" --wal-segsize=SIZE size of WAL segments, in megabytes\n"));
2194  printf(_("\nLess commonly used options:\n"));
2195  printf(_(" -d, --debug generate lots of debugging output\n"));
2196  printf(_(" --discard-caches set debug_discard_caches=1\n"));
2197  printf(_(" -L DIRECTORY where to find the input files\n"));
2198  printf(_(" -n, --no-clean do not clean up after errors\n"));
2199  printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
2200  printf(_(" --no-instructions do not print instructions for next steps\n"));
2201  printf(_(" -s, --show show internal settings\n"));
2202  printf(_(" -S, --sync-only only sync database files to disk, then exit\n"));
2203  printf(_("\nOther options:\n"));
2204  printf(_(" -V, --version output version information, then exit\n"));
2205  printf(_(" -?, --help show this help, then exit\n"));
2206  printf(_("\nIf the data directory is not specified, the environment variable PGDATA\n"
2207  "is used.\n"));
2208  printf(_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
2209  printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
2210 }
2211 
2212 static void
2213 check_authmethod_unspecified(const char **authmethod)
2214 {
2215  if (*authmethod == NULL)
2216  {
2217  authwarning = true;
2218  *authmethod = "trust";
2219  }
2220 }
2221 
2222 static void
2223 check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
2224 {
2225  const char *const *p;
2226 
2227  for (p = valid_methods; *p; p++)
2228  {
2229  if (strcmp(authmethod, *p) == 0)
2230  return;
2231  /* with space = param */
2232  if (strchr(authmethod, ' '))
2233  if (strncmp(authmethod, *p, (authmethod - strchr(authmethod, ' '))) == 0)
2234  return;
2235  }
2236 
2237  pg_log_error("invalid authentication method \"%s\" for \"%s\" connections",
2238  authmethod, conntype);
2239  exit(1);
2240 }
2241 
2242 static void
2244 {
2245  if ((strcmp(authmethodlocal, "md5") == 0 ||
2246  strcmp(authmethodlocal, "password") == 0 ||
2247  strcmp(authmethodlocal, "scram-sha-256") == 0) &&
2248  (strcmp(authmethodhost, "md5") == 0 ||
2249  strcmp(authmethodhost, "password") == 0 ||
2250  strcmp(authmethodhost, "scram-sha-256") == 0) &&
2251  !(pwprompt || pwfilename))
2252  {
2253  pg_log_error("must specify a password for the superuser to enable password authentication");
2254  exit(1);
2255  }
2256 }
2257 
2258 
2259 void
2261 {
2262  char *pgdata_get_env;
2263 
2264  if (!pg_data)
2265  {
2266  pgdata_get_env = getenv("PGDATA");
2267  if (pgdata_get_env && strlen(pgdata_get_env))
2268  {
2269  /* PGDATA found */
2270  pg_data = pg_strdup(pgdata_get_env);
2271  }
2272  else
2273  {
2274  pg_log_error("no data directory specified");
2275  fprintf(stderr,
2276  _("You must identify the directory where the data for this database system\n"
2277  "will reside. Do this with either the invocation option -D or the\n"
2278  "environment variable PGDATA.\n"));
2279  exit(1);
2280  }
2281  }
2282 
2285 
2286  /*
2287  * we have to set PGDATA for postgres rather than pass it on the command
2288  * line to avoid dumb quoting problems on Windows, and we would especially
2289  * need quotes otherwise on Windows because paths there are most likely to
2290  * have embedded spaces.
2291  */
2292  if (setenv("PGDATA", pg_data, 1) != 0)
2293  {
2294  pg_log_error("could not set environment");
2295  exit(1);
2296  }
2297 }
2298 
2299 
2300 void
2302 {
2303  int ret;
2304 
2305  if ((ret = find_other_exec(argv0, "postgres", PG_BACKEND_VERSIONSTR,
2306  backend_exec)) < 0)
2307  {
2308  char full_path[MAXPGPATH];
2309 
2310  if (find_my_exec(argv0, full_path) < 0)
2311  strlcpy(full_path, progname, sizeof(full_path));
2312 
2313  if (ret == -1)
2314  pg_log_error("The program \"%s\" is needed by %s but was not found in the\n"
2315  "same directory as \"%s\".\n"
2316  "Check your installation.",
2317  "postgres", progname, full_path);
2318  else
2319  pg_log_error("The program \"%s\" was found by \"%s\"\n"
2320  "but was not the same version as %s.\n"
2321  "Check your installation.",
2322  "postgres", full_path, progname);
2323  exit(1);
2324  }
2325 
2326  /* store binary directory */
2327  strcpy(bin_path, backend_exec);
2328  *last_dir_separator(bin_path) = '\0';
2330 
2331  if (!share_path)
2332  {
2335  }
2336  else if (!is_absolute_path(share_path))
2337  {
2338  pg_log_error("input file location must be an absolute path");
2339  exit(1);
2340  }
2341 
2343 }
2344 
2345 void
2347 {
2348  setlocales();
2349 
2350  if (strcmp(lc_ctype, lc_collate) == 0 &&
2351  strcmp(lc_ctype, lc_time) == 0 &&
2352  strcmp(lc_ctype, lc_numeric) == 0 &&
2353  strcmp(lc_ctype, lc_monetary) == 0 &&
2354  strcmp(lc_ctype, lc_messages) == 0)
2355  printf(_("The database cluster will be initialized with locale \"%s\".\n"), lc_ctype);
2356  else
2357  {
2358  printf(_("The database cluster will be initialized with locales\n"
2359  " COLLATE: %s\n"
2360  " CTYPE: %s\n"
2361  " MESSAGES: %s\n"
2362  " MONETARY: %s\n"
2363  " NUMERIC: %s\n"
2364  " TIME: %s\n"),
2365  lc_collate,
2366  lc_ctype,
2367  lc_messages,
2368  lc_monetary,
2369  lc_numeric,
2370  lc_time);
2371  }
2372 
2373  if (!encoding)
2374  {
2375  int ctype_enc;
2376 
2377  ctype_enc = pg_get_encoding_from_locale(lc_ctype, true);
2378 
2379  if (ctype_enc == -1)
2380  {
2381  /* Couldn't recognize the locale's codeset */
2382  pg_log_error("could not find suitable encoding for locale \"%s\"",
2383  lc_ctype);
2384  fprintf(stderr, _("Rerun %s with the -E option.\n"), progname);
2385  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
2386  progname);
2387  exit(1);
2388  }
2389  else if (!pg_valid_server_encoding_id(ctype_enc))
2390  {
2391  /*
2392  * We recognized it, but it's not a legal server encoding. On
2393  * Windows, UTF-8 works with any locale, so we can fall back to
2394  * UTF-8.
2395  */
2396 #ifdef WIN32
2397  encodingid = PG_UTF8;
2398  printf(_("Encoding \"%s\" implied by locale is not allowed as a server-side encoding.\n"
2399  "The default database encoding will be set to \"%s\" instead.\n"),
2400  pg_encoding_to_char(ctype_enc),
2402 #else
2403  pg_log_error("locale \"%s\" requires unsupported encoding \"%s\"",
2404  lc_ctype, pg_encoding_to_char(ctype_enc));
2405  fprintf(stderr,
2406  _("Encoding \"%s\" is not allowed as a server-side encoding.\n"
2407  "Rerun %s with a different locale selection.\n"),
2408  pg_encoding_to_char(ctype_enc), progname);
2409  exit(1);
2410 #endif
2411  }
2412  else
2413  {
2414  encodingid = ctype_enc;
2415  printf(_("The default database encoding has accordingly been set to \"%s\".\n"),
2417  }
2418  }
2419  else
2421 
2424  exit(1); /* check_locale_encoding printed the error */
2425 
2426 }
2427 
2428 
2429 void
2431 {
2432  set_input(&bki_file, "postgres.bki");
2433  set_input(&hba_file, "pg_hba.conf.sample");
2434  set_input(&ident_file, "pg_ident.conf.sample");
2435  set_input(&conf_file, "postgresql.conf.sample");
2436  set_input(&dictionary_file, "snowball_create.sql");
2437  set_input(&info_schema_file, "information_schema.sql");
2438  set_input(&features_file, "sql_features.txt");
2439  set_input(&system_constraints_file, "system_constraints.sql");
2440  set_input(&system_functions_file, "system_functions.sql");
2441  set_input(&system_views_file, "system_views.sql");
2442 
2443  if (show_setting || debug)
2444  {
2445  fprintf(stderr,
2446  "VERSION=%s\n"
2447  "PGDATA=%s\nshare_path=%s\nPGPATH=%s\n"
2448  "POSTGRES_SUPERUSERNAME=%s\nPOSTGRES_BKI=%s\n"
2449  "POSTGRESQL_CONF_SAMPLE=%s\n"
2450  "PG_HBA_SAMPLE=%s\nPG_IDENT_SAMPLE=%s\n",
2451  PG_VERSION,
2453  username, bki_file,
2454  conf_file,
2455  hba_file, ident_file);
2456  if (show_setting)
2457  exit(0);
2458  }
2459 
2470 }
2471 
2472 
2473 void
2475 {
2477  {
2480  {
2481  pg_log_info("could not find suitable text search configuration for locale \"%s\"",
2482  lc_ctype);
2483  default_text_search_config = "simple";
2484  }
2485  }
2486  else
2487  {
2488  const char *checkmatch = find_matching_ts_config(lc_ctype);
2489 
2490  if (checkmatch == NULL)
2491  {
2492  pg_log_warning("suitable text search configuration for locale \"%s\" is unknown",
2493  lc_ctype);
2494  }
2495  else if (strcmp(checkmatch, default_text_search_config) != 0)
2496  {
2497  pg_log_warning("specified text search configuration \"%s\" might not match locale \"%s\"",
2499  }
2500  }
2501 
2502  printf(_("The default text search configuration will be set to \"%s\".\n"),
2504 
2505 }
2506 
2507 
2508 void
2510 {
2511  /* some of these are not valid on Windows */
2512 #ifdef SIGHUP
2514 #endif
2515 #ifdef SIGINT
2516  pqsignal(SIGINT, trapsig);
2517 #endif
2518 #ifdef SIGQUIT
2520 #endif
2521 #ifdef SIGTERM
2522  pqsignal(SIGTERM, trapsig);
2523 #endif
2524 
2525  /* Ignore SIGPIPE when writing to backend, so we can clean up */
2526 #ifdef SIGPIPE
2528 #endif
2529 
2530  /* Prevent SIGSYS so we can probe for kernel calls that might not work */
2531 #ifdef SIGSYS
2532  pqsignal(SIGSYS, SIG_IGN);
2533 #endif
2534 }
2535 
2536 
2537 void
2539 {
2540  int ret;
2541 
2542  switch ((ret = pg_check_dir(pg_data)))
2543  {
2544  case 0:
2545  /* PGDATA not there, must create it */
2546  printf(_("creating directory %s ... "),
2547  pg_data);
2548  fflush(stdout);
2549 
2551  {
2552  pg_log_error("could not create directory \"%s\": %m", pg_data);
2553  exit(1);
2554  }
2555  else
2556  check_ok();
2557 
2558  made_new_pgdata = true;
2559  break;
2560 
2561  case 1:
2562  /* Present but empty, fix permissions and use it */
2563  printf(_("fixing permissions on existing directory %s ... "),
2564  pg_data);
2565  fflush(stdout);
2566 
2567  if (chmod(pg_data, pg_dir_create_mode) != 0)
2568  {
2569  pg_log_error("could not change permissions of directory \"%s\": %m",
2570  pg_data);
2571  exit(1);
2572  }
2573  else
2574  check_ok();
2575 
2576  found_existing_pgdata = true;
2577  break;
2578 
2579  case 2:
2580  case 3:
2581  case 4:
2582  /* Present and not empty */
2583  pg_log_error("directory \"%s\" exists but is not empty", pg_data);
2584  if (ret != 4)
2585  warn_on_mount_point(ret);
2586  else
2587  fprintf(stderr,
2588  _("If you want to create a new database system, either remove or empty\n"
2589  "the directory \"%s\" or run %s\n"
2590  "with an argument other than \"%s\".\n"),
2592  exit(1); /* no further message needed */
2593 
2594  default:
2595  /* Trouble accessing directory */
2596  pg_log_error("could not access directory \"%s\": %m", pg_data);
2597  exit(1);
2598  }
2599 }
2600 
2601 
2602 /* Create WAL directory, and symlink if required */
2603 void
2605 {
2606  char *subdirloc;
2607 
2608  /* form name of the place for the subdirectory or symlink */
2609  subdirloc = psprintf("%s/pg_wal", pg_data);
2610 
2611  if (xlog_dir)
2612  {
2613  int ret;
2614 
2615  /* clean up xlog directory name, check it's absolute */
2617  if (!is_absolute_path(xlog_dir))
2618  {
2619  pg_log_error("WAL directory location must be an absolute path");
2620  exit(1);
2621  }
2622 
2623  /* check if the specified xlog directory exists/is empty */
2624  switch ((ret = pg_check_dir(xlog_dir)))
2625  {
2626  case 0:
2627  /* xlog directory not there, must create it */
2628  printf(_("creating directory %s ... "),
2629  xlog_dir);
2630  fflush(stdout);
2631 
2633  {
2634  pg_log_error("could not create directory \"%s\": %m",
2635  xlog_dir);
2636  exit(1);
2637  }
2638  else
2639  check_ok();
2640 
2641  made_new_xlogdir = true;
2642  break;
2643 
2644  case 1:
2645  /* Present but empty, fix permissions and use it */
2646  printf(_("fixing permissions on existing directory %s ... "),
2647  xlog_dir);
2648  fflush(stdout);
2649 
2650  if (chmod(xlog_dir, pg_dir_create_mode) != 0)
2651  {
2652  pg_log_error("could not change permissions of directory \"%s\": %m",
2653  xlog_dir);
2654  exit(1);
2655  }
2656  else
2657  check_ok();
2658 
2659  found_existing_xlogdir = true;
2660  break;
2661 
2662  case 2:
2663  case 3:
2664  case 4:
2665  /* Present and not empty */
2666  pg_log_error("directory \"%s\" exists but is not empty", xlog_dir);
2667  if (ret != 4)
2668  warn_on_mount_point(ret);
2669  else
2670  fprintf(stderr,
2671  _("If you want to store the WAL there, either remove or empty the directory\n"
2672  "\"%s\".\n"),
2673  xlog_dir);
2674  exit(1);
2675 
2676  default:
2677  /* Trouble accessing directory */
2678  pg_log_error("could not access directory \"%s\": %m", xlog_dir);
2679  exit(1);
2680  }
2681 
2682 #ifdef HAVE_SYMLINK
2683  if (symlink(xlog_dir, subdirloc) != 0)
2684  {
2685  pg_log_error("could not create symbolic link \"%s\": %m",
2686  subdirloc);
2687  exit(1);
2688  }
2689 #else
2690  pg_log_error("symlinks are not supported on this platform");
2691  exit(1);
2692 #endif
2693  }
2694  else
2695  {
2696  /* Without -X option, just make the subdirectory normally */
2697  if (mkdir(subdirloc, pg_dir_create_mode) < 0)
2698  {
2699  pg_log_error("could not create directory \"%s\": %m",
2700  subdirloc);
2701  exit(1);
2702  }
2703  }
2704 
2705  free(subdirloc);
2706 }
2707 
2708 
2709 void
2711 {
2712  if (error == 2)
2713  fprintf(stderr,
2714  _("It contains a dot-prefixed/invisible file, perhaps due to it being a mount point.\n"));
2715  else if (error == 3)
2716  fprintf(stderr,
2717  _("It contains a lost+found directory, perhaps due to it being a mount point.\n"));
2718 
2719  fprintf(stderr,
2720  _("Using a mount point directly as the data directory is not recommended.\n"
2721  "Create a subdirectory under the mount point.\n"));
2722 }
2723 
2724 
2725 void
2727 {
2728  PG_CMD_DECL;
2729  int i;
2730 
2731  setup_signals();
2732 
2733  /*
2734  * Set mask based on requested PGDATA permissions. pg_mode_mask, and
2735  * friends like pg_dir_create_mode, are set to owner-only by default and
2736  * then updated if -g is passed in by calling SetDataDirectoryCreatePerm()
2737  * when parsing our options (see above).
2738  */
2739  umask(pg_mode_mask);
2740 
2742 
2744 
2745  /* Create required subdirectories (other than pg_wal) */
2746  printf(_("creating subdirectories ... "));
2747  fflush(stdout);
2748 
2749  for (i = 0; i < lengthof(subdirs); i++)
2750  {
2751  char *path;
2752 
2753  path = psprintf("%s/%s", pg_data, subdirs[i]);
2754 
2755  /*
2756  * The parent directory already exists, so we only need mkdir() not
2757  * pg_mkdir_p() here, which avoids some failure modes; cf bug #13853.
2758  */
2759  if (mkdir(path, pg_dir_create_mode) < 0)
2760  {
2761  pg_log_error("could not create directory \"%s\": %m", path);
2762  exit(1);
2763  }
2764 
2765  free(path);
2766  }
2767 
2768  check_ok();
2769 
2770  /* Top level PG_VERSION is checked by bootstrapper, so make it first */
2771  write_version_file(NULL);
2772 
2773  /* Select suitable configuration settings */
2774  set_null_conf();
2776 
2777  /* Now create all the text config files */
2778  setup_config();
2779 
2780  /* Bootstrap template1 */
2782 
2783  /*
2784  * Make the per-database PG_VERSION for template1 only after init'ing it
2785  */
2786  write_version_file("base/1");
2787 
2788  /*
2789  * Create the stuff we don't need to use bootstrap mode for, using a
2790  * backend running in simple standalone mode.
2791  */
2792  fputs(_("performing post-bootstrap initialization ... "), stdout);
2793  fflush(stdout);
2794 
2795  snprintf(cmd, sizeof(cmd),
2796  "\"%s\" %s %s template1 >%s",
2798  DEVNULL);
2799 
2800  PG_CMD_OPEN;
2801 
2802  setup_auth(cmdfd);
2803 
2805 
2807 
2808  setup_depend(cmdfd);
2809 
2810  /*
2811  * Note that no objects created after setup_depend() will be "pinned".
2812  * They are all droppable at the whim of the DBA.
2813  */
2814 
2816 
2817  setup_description(cmdfd);
2818 
2819  setup_collation(cmdfd);
2820 
2822 
2823  setup_privileges(cmdfd);
2824 
2825  setup_schema(cmdfd);
2826 
2827  load_plpgsql(cmdfd);
2828 
2829  vacuum_db(cmdfd);
2830 
2831  make_template0(cmdfd);
2832 
2833  make_postgres(cmdfd);
2834 
2835  PG_CMD_CLOSE;
2836 
2837  check_ok();
2838 }
2839 
2840 
2841 int
2842 main(int argc, char *argv[])
2843 {
2844  static struct option long_options[] = {
2845  {"pgdata", required_argument, NULL, 'D'},
2846  {"encoding", required_argument, NULL, 'E'},
2847  {"locale", required_argument, NULL, 1},
2848  {"lc-collate", required_argument, NULL, 2},
2849  {"lc-ctype", required_argument, NULL, 3},
2850  {"lc-monetary", required_argument, NULL, 4},
2851  {"lc-numeric", required_argument, NULL, 5},
2852  {"lc-time", required_argument, NULL, 6},
2853  {"lc-messages", required_argument, NULL, 7},
2854  {"no-locale", no_argument, NULL, 8},
2855  {"text-search-config", required_argument, NULL, 'T'},
2856  {"auth", required_argument, NULL, 'A'},
2857  {"auth-local", required_argument, NULL, 10},
2858  {"auth-host", required_argument, NULL, 11},
2859  {"pwprompt", no_argument, NULL, 'W'},
2860  {"pwfile", required_argument, NULL, 9},
2861  {"username", required_argument, NULL, 'U'},
2862  {"help", no_argument, NULL, '?'},
2863  {"version", no_argument, NULL, 'V'},
2864  {"debug", no_argument, NULL, 'd'},
2865  {"show", no_argument, NULL, 's'},
2866  {"noclean", no_argument, NULL, 'n'}, /* for backwards compatibility */
2867  {"no-clean", no_argument, NULL, 'n'},
2868  {"nosync", no_argument, NULL, 'N'}, /* for backwards compatibility */
2869  {"no-sync", no_argument, NULL, 'N'},
2870  {"no-instructions", no_argument, NULL, 13},
2871  {"sync-only", no_argument, NULL, 'S'},
2872  {"waldir", required_argument, NULL, 'X'},
2873  {"wal-segsize", required_argument, NULL, 12},
2874  {"data-checksums", no_argument, NULL, 'k'},
2875  {"allow-group-access", no_argument, NULL, 'g'},
2876  {"discard-caches", no_argument, NULL, 14},
2877  {NULL, 0, NULL, 0}
2878  };
2879 
2880  /*
2881  * options with no short version return a low integer, the rest return
2882  * their short version value
2883  */
2884  int c;
2885  int option_index;
2886  char *effective_user;
2887  PQExpBuffer start_db_cmd;
2888  char pg_ctl_path[MAXPGPATH];
2889 
2890  /*
2891  * Ensure that buffering behavior of stdout matches what it is in
2892  * interactive usage (at least on most platforms). This prevents
2893  * unexpected output ordering when, eg, output is redirected to a file.
2894  * POSIX says we must do this before any other usage of these files.
2895  */
2896  setvbuf(stdout, NULL, PG_IOLBF, 0);
2897 
2898  pg_logging_init(argv[0]);
2899  progname = get_progname(argv[0]);
2900  set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("initdb"));
2901 
2902  if (argc > 1)
2903  {
2904  if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
2905  {
2906  usage(progname);
2907  exit(0);
2908  }
2909  if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
2910  {
2911  puts("initdb (PostgreSQL) " PG_VERSION);
2912  exit(0);
2913  }
2914  }
2915 
2916  /* process command-line options */
2917 
2918  while ((c = getopt_long(argc, argv, "A:dD:E:gkL:nNsST:U:WX:", long_options, &option_index)) != -1)
2919  {
2920  switch (c)
2921  {
2922  case 'A':
2924 
2925  /*
2926  * When ident is specified, use peer for local connections.
2927  * Mirrored, when peer is specified, use ident for TCP/IP
2928  * connections.
2929  */
2930  if (strcmp(authmethodhost, "ident") == 0)
2931  authmethodlocal = "peer";
2932  else if (strcmp(authmethodlocal, "peer") == 0)
2933  authmethodhost = "ident";
2934  break;
2935  case 10:
2937  break;
2938  case 11:
2940  break;
2941  case 'D':
2943  break;
2944  case 'E':
2946  break;
2947  case 'W':
2948  pwprompt = true;
2949  break;
2950  case 'U':
2952  break;
2953  case 'd':
2954  debug = true;
2955  printf(_("Running in debug mode.\n"));
2956  break;
2957  case 'n':
2958  noclean = true;
2959  printf(_("Running in no-clean mode. Mistakes will not be cleaned up.\n"));
2960  break;
2961  case 'N':
2962  do_sync = false;
2963  break;
2964  case 'S':
2965  sync_only = true;
2966  break;
2967  case 'k':
2968  data_checksums = true;
2969  break;
2970  case 'L':
2972  break;
2973  case 1:
2974  locale = pg_strdup(optarg);
2975  break;
2976  case 2:
2978  break;
2979  case 3:
2981  break;
2982  case 4:
2984  break;
2985  case 5:
2987  break;
2988  case 6:
2990  break;
2991  case 7:
2993  break;
2994  case 8:
2995  locale = "C";
2996  break;
2997  case 9:
2999  break;
3000  case 's':
3001  show_setting = true;
3002  break;
3003  case 'T':
3005  break;
3006  case 'X':
3008  break;
3009  case 12:
3011  break;
3012  case 13:
3013  noinstructions = true;
3014  break;
3015  case 'g':
3017  break;
3018  case 14:
3019  extra_options = psprintf("%s %s",
3020  extra_options,
3021  "-c debug_discard_caches=1");
3022  break;
3023  default:
3024  /* getopt_long already emitted a complaint */
3025  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
3026  progname);
3027  exit(1);
3028  }
3029  }
3030 
3031 
3032  /*
3033  * Non-option argument specifies data directory as long as it wasn't
3034  * already specified with -D / --pgdata
3035  */
3036  if (optind < argc && !pg_data)
3037  {
3038  pg_data = pg_strdup(argv[optind]);
3039  optind++;
3040  }
3041 
3042  if (optind < argc)
3043  {
3044  pg_log_error("too many command-line arguments (first is \"%s\")",
3045  argv[optind]);
3046  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
3047  progname);
3048  exit(1);
3049  }
3050 
3052 
3053  /* If we only need to fsync, just do it and exit */
3054  if (sync_only)
3055  {
3056  setup_pgdata();
3057 
3058  /* must check that directory is readable */
3059  if (pg_check_dir(pg_data) <= 0)
3060  {
3061  pg_log_error("could not access directory \"%s\": %m", pg_data);
3062  exit(1);
3063  }
3064 
3065  fputs(_("syncing data to disk ... "), stdout);
3066  fflush(stdout);
3067  fsync_pgdata(pg_data, PG_VERSION_NUM);
3068  check_ok();
3069  return 0;
3070  }
3071 
3072  if (pwprompt && pwfilename)
3073  {
3074  pg_log_error("password prompt and password file cannot be specified together");
3075  exit(1);
3076  }
3077 
3080 
3083 
3085 
3086  /* set wal segment size */
3087  if (str_wal_segment_size_mb == NULL)
3088  wal_segment_size_mb = (DEFAULT_XLOG_SEG_SIZE) / (1024 * 1024);
3089  else
3090  {
3091  char *endptr;
3092 
3093  /* check that the argument is a number */
3094  wal_segment_size_mb = strtol(str_wal_segment_size_mb, &endptr, 10);
3095 
3096  /* verify that wal segment size is valid */
3097  if (endptr == str_wal_segment_size_mb || *endptr != '\0')
3098  {
3099  pg_log_error("argument of --wal-segsize must be a number");
3100  exit(1);
3101  }
3102  if (!IsValidWalSegSize(wal_segment_size_mb * 1024 * 1024))
3103  {
3104  pg_log_error("argument of --wal-segsize must be a power of 2 between 1 and 1024");
3105  exit(1);
3106  }
3107  }
3108 
3110 
3111  setup_pgdata();
3112 
3113  setup_bin_paths(argv[0]);
3114 
3115  effective_user = get_id();
3116  if (!username)
3117  username = effective_user;
3118 
3119  if (strncmp(username, "pg_", 3) == 0)
3120  {
3121  pg_log_error("superuser name \"%s\" is disallowed; role names cannot begin with \"pg_\"", username);
3122  exit(1);
3123  }
3124 
3125  printf(_("The files belonging to this database system will be owned "
3126  "by user \"%s\".\n"
3127  "This user must also own the server process.\n\n"),
3128  effective_user);
3129 
3130  set_info_version();
3131 
3133 
3135 
3137 
3138  printf("\n");
3139 
3140  if (data_checksums)
3141  printf(_("Data page checksums are enabled.\n"));
3142  else
3143  printf(_("Data page checksums are disabled.\n"));
3144 
3145  if (pwprompt || pwfilename)
3146  get_su_pwd();
3147 
3148  printf("\n");
3149 
3151 
3152  if (do_sync)
3153  {
3154  fputs(_("syncing data to disk ... "), stdout);
3155  fflush(stdout);
3156  fsync_pgdata(pg_data, PG_VERSION_NUM);
3157  check_ok();
3158  }
3159  else
3160  printf(_("\nSync to disk skipped.\nThe data directory might become corrupt if the operating system crashes.\n"));
3161 
3162  if (authwarning)
3163  {
3164  printf("\n");
3165  pg_log_warning("enabling \"trust\" authentication for local connections");
3166  fprintf(stderr, _("You can change this by editing pg_hba.conf or using the option -A, or\n"
3167  "--auth-local and --auth-host, the next time you run initdb.\n"));
3168  }
3169 
3170  if (!noinstructions)
3171  {
3172  /*
3173  * Build up a shell command to tell the user how to start the server
3174  */
3175  start_db_cmd = createPQExpBuffer();
3176 
3177  /* Get directory specification used to start initdb ... */
3178  strlcpy(pg_ctl_path, argv[0], sizeof(pg_ctl_path));
3179  canonicalize_path(pg_ctl_path);
3180  get_parent_directory(pg_ctl_path);
3181  /* ... and tag on pg_ctl instead */
3182  join_path_components(pg_ctl_path, pg_ctl_path, "pg_ctl");
3183 
3184  /* Convert the path to use native separators */
3185  make_native_path(pg_ctl_path);
3186 
3187  /* path to pg_ctl, properly quoted */
3188  appendShellString(start_db_cmd, pg_ctl_path);
3189 
3190  /* add -D switch, with properly quoted data directory */
3191  appendPQExpBufferStr(start_db_cmd, " -D ");
3192  appendShellString(start_db_cmd, pgdata_native);
3193 
3194  /* add suggested -l switch and "start" command */
3195  /* translator: This is a placeholder in a shell command. */
3196  appendPQExpBuffer(start_db_cmd, " -l %s start", _("logfile"));
3197 
3198  printf(_("\nSuccess. You can now start the database server using:\n\n"
3199  " %s\n\n"),
3200  start_db_cmd->data);
3201 
3202  destroyPQExpBuffer(start_db_cmd);
3203  }
3204 
3205 
3206  success = true;
3207  return 0;
3208 }
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Definition: getopt.c:52
static void setup_privileges(FILE *cmdfd)
Definition: initdb.c:1620
static void make_postgres(FILE *cmdfd)
Definition: initdb.c:1874
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:2168
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:2243
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:71
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:229
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:2223
void get_share_path(const char *my_exec_path, char *ret_path)
Definition: path.c:704
#define snprintf
Definition: port.h:217
void setup_pgdata(void)
Definition: initdb.c:2260
#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:91
static void trapsig(int signum)
Definition: initdb.c:1909
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:283
#define unsetenv(x)
Definition: win32_port.h:508
static void set_info_version(void)
Definition: initdb.c:1770
#define DEFAULT_PGSOCKET_DIR
static bool show_setting
Definition: initdb.c:145
static bool noinstructions
Definition: initdb.c:142
static void set_input(char **dest, const char *filename)
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