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) 1996-2019, 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/username.h"
71 #include "fe_utils/string_utils.h"
72 #include "getaddrinfo.h"
73 #include "getopt_long.h"
74 #include "mb/pg_wchar.h"
75 #include "miscadmin.h"
76 
77 
78 /* Ideally this would be in a .h file, but it hardly seems worth the trouble */
79 extern const char *select_default_timezone(const char *share_path);
80 
81 static const char *const auth_methods_host[] = {
82  "trust", "reject", "scram-sha-256", "md5", "password", "ident", "radius",
83 #ifdef ENABLE_GSS
84  "gss",
85 #endif
86 #ifdef ENABLE_SSPI
87  "sspi",
88 #endif
89 #ifdef USE_PAM
90  "pam", "pam ",
91 #endif
92 #ifdef USE_BSD_AUTH
93  "bsd",
94 #endif
95 #ifdef USE_LDAP
96  "ldap",
97 #endif
98 #ifdef USE_SSL
99  "cert",
100 #endif
101  NULL
102 };
103 static const char *const auth_methods_local[] = {
104  "trust", "reject", "scram-sha-256", "md5", "password", "peer", "radius",
105 #ifdef USE_PAM
106  "pam", "pam ",
107 #endif
108 #ifdef USE_BSD_AUTH
109  "bsd",
110 #endif
111 #ifdef USE_LDAP
112  "ldap",
113 #endif
114  NULL
115 };
116 
117 /*
118  * these values are passed in by makefile defines
119  */
120 static char *share_path = NULL;
121 
122 /* values to be obtained from arguments */
123 static char *pg_data = NULL;
124 static char *encoding = NULL;
125 static char *locale = NULL;
126 static char *lc_collate = NULL;
127 static char *lc_ctype = NULL;
128 static char *lc_monetary = NULL;
129 static char *lc_numeric = NULL;
130 static char *lc_time = NULL;
131 static char *lc_messages = NULL;
132 static const char *default_text_search_config = NULL;
133 static char *username = NULL;
134 static bool pwprompt = false;
135 static char *pwfilename = NULL;
136 static char *superuser_password = NULL;
137 static const char *authmethodhost = NULL;
138 static const char *authmethodlocal = NULL;
139 static bool debug = false;
140 static bool noclean = false;
141 static bool do_sync = true;
142 static bool sync_only = false;
143 static bool show_setting = false;
144 static bool data_checksums = false;
145 static char *xlog_dir = NULL;
146 static char *str_wal_segment_size_mb = NULL;
148 
149 
150 /* internal vars */
151 static const char *progname;
152 static int encodingid;
153 static char *bki_file;
154 static char *desc_file;
155 static char *shdesc_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;
162 static char *system_views_file;
163 static bool success = false;
164 static bool made_new_pgdata = false;
165 static bool found_existing_pgdata = false;
166 static bool made_new_xlogdir = false;
167 static bool found_existing_xlogdir = false;
168 static char infoversion[100];
169 static bool caught_signal = false;
170 static bool output_failed = false;
171 static int output_errno = 0;
172 static char *pgdata_native;
173 
174 /* defaults */
175 static int n_connections = 10;
176 static int n_buffers = 50;
177 static const char *dynamic_shared_memory_type = NULL;
178 static const char *default_timezone = NULL;
179 
180 /*
181  * Warning messages for authentication methods
182  */
183 #define AUTHTRUST_WARNING \
184 "# CAUTION: Configuring the system for local \"trust\" authentication\n" \
185 "# allows any local user to connect as any PostgreSQL user, including\n" \
186 "# the database superuser. If you do not trust all your local users,\n" \
187 "# use another authentication method.\n"
188 static bool authwarning = false;
189 
190 /*
191  * Centralized knowledge of switches to pass to backend
192  *
193  * Note: we run the backend with -F (fsync disabled) and then do a single
194  * pass of fsync'ing at the end. This is faster than fsync'ing each step.
195  *
196  * Note: in the shell-script version, we also passed PGDATA as a -D switch,
197  * but here it is more convenient to pass it as an environment variable
198  * (no quoting to worry about).
199  */
200 static const char *boot_options = "-F";
201 static const char *backend_options = "--single -F -O -j -c search_path=pg_catalog -c exit_on_error=true";
202 
203 static const char *const subdirs[] = {
204  "global",
205  "pg_wal/archive_status",
206  "pg_commit_ts",
207  "pg_dynshmem",
208  "pg_notify",
209  "pg_serial",
210  "pg_snapshots",
211  "pg_subtrans",
212  "pg_twophase",
213  "pg_multixact",
214  "pg_multixact/members",
215  "pg_multixact/offsets",
216  "base",
217  "base/1",
218  "pg_replslot",
219  "pg_tblspc",
220  "pg_stat",
221  "pg_stat_tmp",
222  "pg_xact",
223  "pg_logical",
224  "pg_logical/snapshots",
225  "pg_logical/mappings"
226 };
227 
228 
229 /* path to 'initdb' binary directory */
230 static char bin_path[MAXPGPATH];
231 static char backend_exec[MAXPGPATH];
232 
233 static char **replace_token(char **lines,
234  const char *token, const char *replacement);
235 
236 #ifndef HAVE_UNIX_SOCKETS
237 static char **filter_lines_with_token(char **lines, const char *token);
238 #endif
239 static char **readfile(const char *path);
240 static void writefile(char *path, char **lines);
241 static FILE *popen_check(const char *command, const char *mode);
242 static char *get_id(void);
243 static int get_encoding_id(const char *encoding_name);
244 static void set_input(char **dest, const char *filename);
245 static void check_input(char *path);
246 static void write_version_file(const char *extrapath);
247 static void set_null_conf(void);
248 static void test_config_settings(void);
249 static void setup_config(void);
250 static void bootstrap_template1(void);
251 static void setup_auth(FILE *cmdfd);
252 static void get_su_pwd(void);
253 static void setup_depend(FILE *cmdfd);
254 static void setup_sysviews(FILE *cmdfd);
255 static void setup_description(FILE *cmdfd);
256 static void setup_collation(FILE *cmdfd);
257 static void setup_dictionary(FILE *cmdfd);
258 static void setup_privileges(FILE *cmdfd);
259 static void set_info_version(void);
260 static void setup_schema(FILE *cmdfd);
261 static void load_plpgsql(FILE *cmdfd);
262 static void vacuum_db(FILE *cmdfd);
263 static void make_template0(FILE *cmdfd);
264 static void make_postgres(FILE *cmdfd);
265 static void trapsig(int signum);
266 static void check_ok(void);
267 static char *escape_quotes(const char *src);
268 static char *escape_quotes_bki(const char *src);
269 static int locale_date_order(const char *locale);
270 static void check_locale_name(int category, const char *locale,
271  char **canonname);
272 static bool check_locale_encoding(const char *locale, int encoding);
273 static void setlocales(void);
274 static void usage(const char *progname);
275 void setup_pgdata(void);
276 void setup_bin_paths(const char *argv0);
277 void setup_data_file_paths(void);
278 void setup_locale_encoding(void);
279 void setup_signals(void);
280 void setup_text_search(void);
281 void create_data_directory(void);
282 void create_xlog_or_symlink(void);
283 void warn_on_mount_point(int error);
284 void initialize_data_directory(void);
285 
286 /*
287  * macros for running pipes to postgres
288  */
289 #define PG_CMD_DECL char cmd[MAXPGPATH]; FILE *cmdfd
290 
291 #define PG_CMD_OPEN \
292 do { \
293  cmdfd = popen_check(cmd, "w"); \
294  if (cmdfd == NULL) \
295  exit(1); /* message already printed by popen_check */ \
296 } while (0)
297 
298 #define PG_CMD_CLOSE \
299 do { \
300  if (pclose_check(cmdfd)) \
301  exit(1); /* message already printed by pclose_check */ \
302 } while (0)
303 
304 #define PG_CMD_PUTS(line) \
305 do { \
306  if (fputs(line, cmdfd) < 0 || fflush(cmdfd) < 0) \
307  output_failed = true, output_errno = errno; \
308 } while (0)
309 
310 #define PG_CMD_PRINTF1(fmt, arg1) \
311 do { \
312  if (fprintf(cmdfd, fmt, arg1) < 0 || fflush(cmdfd) < 0) \
313  output_failed = true, output_errno = errno; \
314 } while (0)
315 
316 #define PG_CMD_PRINTF2(fmt, arg1, arg2) \
317 do { \
318  if (fprintf(cmdfd, fmt, arg1, arg2) < 0 || fflush(cmdfd) < 0) \
319  output_failed = true, output_errno = errno; \
320 } while (0)
321 
322 #define PG_CMD_PRINTF3(fmt, arg1, arg2, arg3) \
323 do { \
324  if (fprintf(cmdfd, fmt, arg1, arg2, arg3) < 0 || fflush(cmdfd) < 0) \
325  output_failed = true, output_errno = errno; \
326 } while (0)
327 
328 /*
329  * Escape single quotes and backslashes, suitably for insertions into
330  * configuration files or SQL E'' strings.
331  */
332 static char *
333 escape_quotes(const char *src)
334 {
335  char *result = escape_single_quotes_ascii(src);
336 
337  if (!result)
338  {
339  pg_log_error("out of memory");
340  exit(1);
341  }
342  return result;
343 }
344 
345 /*
346  * Escape a field value to be inserted into the BKI data.
347  * Here, we first run the value through escape_quotes (which
348  * will be inverted by the backend's scanstr() function) and
349  * then overlay special processing of double quotes, which
350  * bootscanner.l will only accept as data if converted to octal
351  * representation ("\042"). We always wrap the value in double
352  * quotes, even if that isn't strictly necessary.
353  */
354 static char *
355 escape_quotes_bki(const char *src)
356 {
357  char *result;
358  char *data = escape_quotes(src);
359  char *resultp;
360  char *datap;
361  int nquotes = 0;
362 
363  /* count double quotes in data */
364  datap = data;
365  while ((datap = strchr(datap, '"')) != NULL)
366  {
367  nquotes++;
368  datap++;
369  }
370 
371  result = (char *) pg_malloc(strlen(data) + 3 + nquotes * 3);
372  resultp = result;
373  *resultp++ = '"';
374  for (datap = data; *datap; datap++)
375  {
376  if (*datap == '"')
377  {
378  strcpy(resultp, "\\042");
379  resultp += 4;
380  }
381  else
382  *resultp++ = *datap;
383  }
384  *resultp++ = '"';
385  *resultp = '\0';
386 
387  free(data);
388  return result;
389 }
390 
391 /*
392  * make a copy of the array of lines, with token replaced by replacement
393  * the first time it occurs on each line.
394  *
395  * This does most of what sed was used for in the shell script, but
396  * doesn't need any regexp stuff.
397  */
398 static char **
399 replace_token(char **lines, const char *token, const char *replacement)
400 {
401  int numlines = 1;
402  int i;
403  char **result;
404  int toklen,
405  replen,
406  diff;
407 
408  for (i = 0; lines[i]; i++)
409  numlines++;
410 
411  result = (char **) pg_malloc(numlines * sizeof(char *));
412 
413  toklen = strlen(token);
414  replen = strlen(replacement);
415  diff = replen - toklen;
416 
417  for (i = 0; i < numlines; i++)
418  {
419  char *where;
420  char *newline;
421  int pre;
422 
423  /* just copy pointer if NULL or no change needed */
424  if (lines[i] == NULL || (where = strstr(lines[i], token)) == NULL)
425  {
426  result[i] = lines[i];
427  continue;
428  }
429 
430  /* if we get here a change is needed - set up new line */
431 
432  newline = (char *) pg_malloc(strlen(lines[i]) + diff + 1);
433 
434  pre = where - lines[i];
435 
436  memcpy(newline, lines[i], pre);
437 
438  memcpy(newline + pre, replacement, replen);
439 
440  strcpy(newline + pre + replen, lines[i] + pre + toklen);
441 
442  result[i] = newline;
443  }
444 
445  return result;
446 }
447 
448 /*
449  * make a copy of lines without any that contain the token
450  *
451  * a sort of poor man's grep -v
452  */
453 #ifndef HAVE_UNIX_SOCKETS
454 static char **
455 filter_lines_with_token(char **lines, const char *token)
456 {
457  int numlines = 1;
458  int i,
459  src,
460  dst;
461  char **result;
462 
463  for (i = 0; lines[i]; i++)
464  numlines++;
465 
466  result = (char **) pg_malloc(numlines * sizeof(char *));
467 
468  for (src = 0, dst = 0; src < numlines; src++)
469  {
470  if (lines[src] == NULL || strstr(lines[src], token) == NULL)
471  result[dst++] = lines[src];
472  }
473 
474  return result;
475 }
476 #endif
477 
478 /*
479  * get the lines from a text file
480  */
481 static char **
482 readfile(const char *path)
483 {
484  FILE *infile;
485  int maxlength = 1,
486  linelen = 0;
487  int nlines = 0;
488  int n;
489  char **result;
490  char *buffer;
491  int c;
492 
493  if ((infile = fopen(path, "r")) == NULL)
494  {
495  pg_log_error("could not open file \"%s\" for reading: %m", path);
496  exit(1);
497  }
498 
499  /* pass over the file twice - the first time to size the result */
500 
501  while ((c = fgetc(infile)) != EOF)
502  {
503  linelen++;
504  if (c == '\n')
505  {
506  nlines++;
507  if (linelen > maxlength)
508  maxlength = linelen;
509  linelen = 0;
510  }
511  }
512 
513  /* handle last line without a terminating newline (yuck) */
514  if (linelen)
515  nlines++;
516  if (linelen > maxlength)
517  maxlength = linelen;
518 
519  /* set up the result and the line buffer */
520  result = (char **) pg_malloc((nlines + 1) * sizeof(char *));
521  buffer = (char *) pg_malloc(maxlength + 1);
522 
523  /* now reprocess the file and store the lines */
524  rewind(infile);
525  n = 0;
526  while (fgets(buffer, maxlength + 1, infile) != NULL && n < nlines)
527  result[n++] = pg_strdup(buffer);
528 
529  fclose(infile);
530  free(buffer);
531  result[n] = NULL;
532 
533  return result;
534 }
535 
536 /*
537  * write an array of lines to a file
538  *
539  * This is only used to write text files. Use fopen "w" not PG_BINARY_W
540  * so that the resulting configuration files are nicely editable on Windows.
541  */
542 static void
543 writefile(char *path, char **lines)
544 {
545  FILE *out_file;
546  char **line;
547 
548  if ((out_file = fopen(path, "w")) == NULL)
549  {
550  pg_log_error("could not open file \"%s\" for writing: %m", path);
551  exit(1);
552  }
553  for (line = lines; *line != NULL; line++)
554  {
555  if (fputs(*line, out_file) < 0)
556  {
557  pg_log_error("could not write file \"%s\": %m", path);
558  exit(1);
559  }
560  free(*line);
561  }
562  if (fclose(out_file))
563  {
564  pg_log_error("could not write file \"%s\": %m", path);
565  exit(1);
566  }
567 }
568 
569 /*
570  * Open a subcommand with suitable error messaging
571  */
572 static FILE *
573 popen_check(const char *command, const char *mode)
574 {
575  FILE *cmdfd;
576 
577  fflush(stdout);
578  fflush(stderr);
579  errno = 0;
580  cmdfd = popen(command, mode);
581  if (cmdfd == NULL)
582  pg_log_error("could not execute command \"%s\": %m", command);
583  return cmdfd;
584 }
585 
586 /*
587  * clean up any files we created on failure
588  * if we created the data directory remove it too
589  */
590 static void
592 {
593  if (success)
594  return;
595 
596  if (!noclean)
597  {
598  if (made_new_pgdata)
599  {
600  pg_log_info("removing data directory \"%s\"", pg_data);
601  if (!rmtree(pg_data, true))
602  pg_log_error("failed to remove data directory");
603  }
604  else if (found_existing_pgdata)
605  {
606  pg_log_info("removing contents of data directory \"%s\"",
607  pg_data);
608  if (!rmtree(pg_data, false))
609  pg_log_error("failed to remove contents of data directory");
610  }
611 
612  if (made_new_xlogdir)
613  {
614  pg_log_info("removing WAL directory \"%s\"", xlog_dir);
615  if (!rmtree(xlog_dir, true))
616  pg_log_error("failed to remove WAL directory");
617  }
618  else if (found_existing_xlogdir)
619  {
620  pg_log_info("removing contents of WAL directory \"%s\"", xlog_dir);
621  if (!rmtree(xlog_dir, false))
622  pg_log_error("failed to remove contents of WAL directory");
623  }
624  /* otherwise died during startup, do nothing! */
625  }
626  else
627  {
629  pg_log_info("data directory \"%s\" not removed at user's request",
630  pg_data);
631 
633  pg_log_info("WAL directory \"%s\" not removed at user's request",
634  xlog_dir);
635  }
636 }
637 
638 /*
639  * find the current user
640  *
641  * on unix make sure it isn't root
642  */
643 static char *
644 get_id(void)
645 {
646  const char *username;
647 
648 #ifndef WIN32
649  if (geteuid() == 0) /* 0 is root's uid */
650  {
651  pg_log_error("cannot be run as root");
652  fprintf(stderr,
653  _("Please log in (using, e.g., \"su\") as the (unprivileged) user that will\n"
654  "own the server process.\n"));
655  exit(1);
656  }
657 #endif
658 
659  username = get_user_name_or_exit(progname);
660 
661  return pg_strdup(username);
662 }
663 
664 static char *
666 {
667  char result[20];
668 
669  sprintf(result, "%d", enc);
670  return pg_strdup(result);
671 }
672 
673 /*
674  * get the encoding id for a given encoding name
675  */
676 static int
677 get_encoding_id(const char *encoding_name)
678 {
679  int enc;
680 
681  if (encoding_name && *encoding_name)
682  {
683  if ((enc = pg_valid_server_encoding(encoding_name)) >= 0)
684  return enc;
685  }
686  pg_log_error("\"%s\" is not a valid server encoding name",
687  encoding_name ? encoding_name : "(null)");
688  exit(1);
689 }
690 
691 /*
692  * Support for determining the best default text search configuration.
693  * We key this off the first part of LC_CTYPE (ie, the language name).
694  */
696 {
697  const char *tsconfname;
698  const char *langname;
699 };
700 
702 {
703  {"arabic", "ar"},
704  {"arabic", "Arabic"},
705  {"danish", "da"},
706  {"danish", "Danish"},
707  {"dutch", "nl"},
708  {"dutch", "Dutch"},
709  {"english", "C"},
710  {"english", "POSIX"},
711  {"english", "en"},
712  {"english", "English"},
713  {"finnish", "fi"},
714  {"finnish", "Finnish"},
715  {"french", "fr"},
716  {"french", "French"},
717  {"german", "de"},
718  {"german", "German"},
719  {"hungarian", "hu"},
720  {"hungarian", "Hungarian"},
721  {"indonesian", "id"},
722  {"indonesian", "Indonesian"},
723  {"irish", "ga"},
724  {"irish", "Irish"},
725  {"italian", "it"},
726  {"italian", "Italian"},
727  {"lithuanian", "lt"},
728  {"lithuanian", "Lithuanian"},
729  {"nepali", "ne"},
730  {"nepali", "Nepali"},
731  {"norwegian", "no"},
732  {"norwegian", "Norwegian"},
733  {"portuguese", "pt"},
734  {"portuguese", "Portuguese"},
735  {"romanian", "ro"},
736  {"russian", "ru"},
737  {"russian", "Russian"},
738  {"spanish", "es"},
739  {"spanish", "Spanish"},
740  {"swedish", "sv"},
741  {"swedish", "Swedish"},
742  {"tamil", "ta"},
743  {"tamil", "Tamil"},
744  {"turkish", "tr"},
745  {"turkish", "Turkish"},
746  {NULL, NULL} /* end marker */
747 };
748 
749 /*
750  * Look for a text search configuration matching lc_ctype, and return its
751  * name; return NULL if no match.
752  */
753 static const char *
754 find_matching_ts_config(const char *lc_type)
755 {
756  int i;
757  char *langname,
758  *ptr;
759 
760  /*
761  * Convert lc_ctype to a language name by stripping everything after an
762  * underscore (usual case) or a hyphen (Windows "locale name"; see
763  * comments at IsoLocaleName()).
764  *
765  * XXX Should ' ' be a stop character? This would select "norwegian" for
766  * the Windows locale "Norwegian (Nynorsk)_Norway.1252". If we do so, we
767  * should also accept the "nn" and "nb" Unix locales.
768  *
769  * Just for paranoia, we also stop at '.' or '@'.
770  */
771  if (lc_type == NULL)
772  langname = pg_strdup("");
773  else
774  {
775  ptr = langname = pg_strdup(lc_type);
776  while (*ptr &&
777  *ptr != '_' && *ptr != '-' && *ptr != '.' && *ptr != '@')
778  ptr++;
779  *ptr = '\0';
780  }
781 
782  for (i = 0; tsearch_config_languages[i].tsconfname; i++)
783  {
784  if (pg_strcasecmp(tsearch_config_languages[i].langname, langname) == 0)
785  {
786  free(langname);
787  return tsearch_config_languages[i].tsconfname;
788  }
789  }
790 
791  free(langname);
792  return NULL;
793 }
794 
795 
796 /*
797  * set name of given input file variable under data directory
798  */
799 static void
800 set_input(char **dest, const char *filename)
801 {
802  *dest = psprintf("%s/%s", share_path, filename);
803 }
804 
805 /*
806  * check that given input file exists
807  */
808 static void
809 check_input(char *path)
810 {
811  struct stat statbuf;
812 
813  if (stat(path, &statbuf) != 0)
814  {
815  if (errno == ENOENT)
816  {
817  pg_log_error("file \"%s\" does not exist", path);
818  fprintf(stderr,
819  _("This might mean you have a corrupted installation or identified\n"
820  "the wrong directory with the invocation option -L.\n"));
821  }
822  else
823  {
824  pg_log_error("could not access file \"%s\": %m", path);
825  fprintf(stderr,
826  _("This might mean you have a corrupted installation or identified\n"
827  "the wrong directory with the invocation option -L.\n"));
828  }
829  exit(1);
830  }
831  if (!S_ISREG(statbuf.st_mode))
832  {
833  pg_log_error("file \"%s\" is not a regular file", path);
834  fprintf(stderr,
835  _("This might mean you have a corrupted installation or identified\n"
836  "the wrong directory with the invocation option -L.\n"));
837  exit(1);
838  }
839 }
840 
841 /*
842  * write out the PG_VERSION file in the data dir, or its subdirectory
843  * if extrapath is not NULL
844  */
845 static void
846 write_version_file(const char *extrapath)
847 {
848  FILE *version_file;
849  char *path;
850 
851  if (extrapath == NULL)
852  path = psprintf("%s/PG_VERSION", pg_data);
853  else
854  path = psprintf("%s/%s/PG_VERSION", pg_data, extrapath);
855 
856  if ((version_file = fopen(path, PG_BINARY_W)) == NULL)
857  {
858  pg_log_error("could not open file \"%s\" for writing: %m", path);
859  exit(1);
860  }
861  if (fprintf(version_file, "%s\n", PG_MAJORVERSION) < 0 ||
862  fclose(version_file))
863  {
864  pg_log_error("could not write file \"%s\": %m", path);
865  exit(1);
866  }
867  free(path);
868 }
869 
870 /*
871  * set up an empty config file so we can check config settings by launching
872  * a test backend
873  */
874 static void
876 {
877  FILE *conf_file;
878  char *path;
879 
880  path = psprintf("%s/postgresql.conf", pg_data);
881  conf_file = fopen(path, PG_BINARY_W);
882  if (conf_file == NULL)
883  {
884  pg_log_error("could not open file \"%s\" for writing: %m", path);
885  exit(1);
886  }
887  if (fclose(conf_file))
888  {
889  pg_log_error("could not write file \"%s\": %m", path);
890  exit(1);
891  }
892  free(path);
893 }
894 
895 /*
896  * Determine which dynamic shared memory implementation should be used on
897  * this platform. POSIX shared memory is preferable because the default
898  * allocation limits are much higher than the limits for System V on most
899  * systems that support both, but the fact that a platform has shm_open
900  * doesn't guarantee that that call will succeed when attempted. So, we
901  * attempt to reproduce what the postmaster will do when allocating a POSIX
902  * segment in dsm_impl.c; if it doesn't work, we assume it won't work for
903  * the postmaster either, and configure the cluster for System V shared
904  * memory instead.
905  */
906 static const char *
908 {
909 #ifdef HAVE_SHM_OPEN
910  int ntries = 10;
911 
912  /* Initialize random(); this function is its only user in this program. */
913  srandom((unsigned int) (getpid() ^ time(NULL)));
914 
915  while (ntries > 0)
916  {
917  uint32 handle;
918  char name[64];
919  int fd;
920 
921  handle = random();
922  snprintf(name, 64, "/PostgreSQL.%u", handle);
923  if ((fd = shm_open(name, O_CREAT | O_RDWR | O_EXCL, 0600)) != -1)
924  {
925  close(fd);
926  shm_unlink(name);
927  return "posix";
928  }
929  if (errno != EEXIST)
930  break;
931  --ntries;
932  }
933 #endif
934 
935 #ifdef WIN32
936  return "windows";
937 #else
938  return "sysv";
939 #endif
940 }
941 
942 /*
943  * Determine platform-specific config settings
944  *
945  * Use reasonable values if kernel will let us, else scale back.
946  */
947 static void
949 {
950  /*
951  * This macro defines the minimum shared_buffers we want for a given
952  * max_connections value. The arrays show the settings to try.
953  */
954 #define MIN_BUFS_FOR_CONNS(nconns) ((nconns) * 10)
955 
956  static const int trial_conns[] = {
957  100, 50, 40, 30, 20
958  };
959  static const int trial_bufs[] = {
960  16384, 8192, 4096, 3584, 3072, 2560, 2048, 1536,
961  1000, 900, 800, 700, 600, 500,
962  400, 300, 200, 100, 50
963  };
964 
965  char cmd[MAXPGPATH];
966  const int connslen = sizeof(trial_conns) / sizeof(int);
967  const int bufslen = sizeof(trial_bufs) / sizeof(int);
968  int i,
969  status,
970  test_conns,
971  test_buffs,
972  ok_buffers = 0;
973 
974  /*
975  * Need to determine working DSM implementation first so that subsequent
976  * tests don't fail because DSM setting doesn't work.
977  */
978  printf(_("selecting dynamic shared memory implementation ... "));
979  fflush(stdout);
982 
983  /*
984  * Probe for max_connections before shared_buffers, since it is subject to
985  * more constraints than shared_buffers.
986  */
987  printf(_("selecting default max_connections ... "));
988  fflush(stdout);
989 
990  for (i = 0; i < connslen; i++)
991  {
992  test_conns = trial_conns[i];
993  test_buffs = MIN_BUFS_FOR_CONNS(test_conns);
994 
995  snprintf(cmd, sizeof(cmd),
996  "\"%s\" --boot -x0 %s "
997  "-c max_connections=%d "
998  "-c shared_buffers=%d "
999  "-c dynamic_shared_memory_type=%s "
1000  "< \"%s\" > \"%s\" 2>&1",
1002  test_conns, test_buffs,
1004  DEVNULL, DEVNULL);
1005  status = system(cmd);
1006  if (status == 0)
1007  {
1008  ok_buffers = test_buffs;
1009  break;
1010  }
1011  }
1012  if (i >= connslen)
1013  i = connslen - 1;
1014  n_connections = trial_conns[i];
1015 
1016  printf("%d\n", n_connections);
1017 
1018  printf(_("selecting default shared_buffers ... "));
1019  fflush(stdout);
1020 
1021  for (i = 0; i < bufslen; i++)
1022  {
1023  /* Use same amount of memory, independent of BLCKSZ */
1024  test_buffs = (trial_bufs[i] * 8192) / BLCKSZ;
1025  if (test_buffs <= ok_buffers)
1026  {
1027  test_buffs = ok_buffers;
1028  break;
1029  }
1030 
1031  snprintf(cmd, sizeof(cmd),
1032  "\"%s\" --boot -x0 %s "
1033  "-c max_connections=%d "
1034  "-c shared_buffers=%d "
1035  "-c dynamic_shared_memory_type=%s "
1036  "< \"%s\" > \"%s\" 2>&1",
1038  n_connections, test_buffs,
1040  DEVNULL, DEVNULL);
1041  status = system(cmd);
1042  if (status == 0)
1043  break;
1044  }
1045  n_buffers = test_buffs;
1046 
1047  if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
1048  printf("%dMB\n", (n_buffers * (BLCKSZ / 1024)) / 1024);
1049  else
1050  printf("%dkB\n", n_buffers * (BLCKSZ / 1024));
1051 
1052  printf(_("selecting default timezone ... "));
1053  fflush(stdout);
1055  printf("%s\n", default_timezone ? default_timezone : "GMT");
1056 }
1057 
1058 /*
1059  * Calculate the default wal_size with a "pretty" unit.
1060  */
1061 static char *
1062 pretty_wal_size(int segment_count)
1063 {
1064  int sz = wal_segment_size_mb * segment_count;
1065  char *result = pg_malloc(14);
1066 
1067  if ((sz % 1024) == 0)
1068  snprintf(result, 14, "%dGB", sz / 1024);
1069  else
1070  snprintf(result, 14, "%dMB", sz);
1071 
1072  return result;
1073 }
1074 
1075 /*
1076  * set up all the config files
1077  */
1078 static void
1080 {
1081  char **conflines;
1082  char repltok[MAXPGPATH];
1083  char path[MAXPGPATH];
1084  char *autoconflines[3];
1085 
1086  fputs(_("creating configuration files ... "), stdout);
1087  fflush(stdout);
1088 
1089  /* postgresql.conf */
1090 
1091  conflines = readfile(conf_file);
1092 
1093  snprintf(repltok, sizeof(repltok), "max_connections = %d", n_connections);
1094  conflines = replace_token(conflines, "#max_connections = 100", repltok);
1095 
1096  if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
1097  snprintf(repltok, sizeof(repltok), "shared_buffers = %dMB",
1098  (n_buffers * (BLCKSZ / 1024)) / 1024);
1099  else
1100  snprintf(repltok, sizeof(repltok), "shared_buffers = %dkB",
1101  n_buffers * (BLCKSZ / 1024));
1102  conflines = replace_token(conflines, "#shared_buffers = 32MB", repltok);
1103 
1104 #ifdef HAVE_UNIX_SOCKETS
1105  snprintf(repltok, sizeof(repltok), "#unix_socket_directories = '%s'",
1107 #else
1108  snprintf(repltok, sizeof(repltok), "#unix_socket_directories = ''");
1109 #endif
1110  conflines = replace_token(conflines, "#unix_socket_directories = '/tmp'",
1111  repltok);
1112 
1113 #if DEF_PGPORT != 5432
1114  snprintf(repltok, sizeof(repltok), "#port = %d", DEF_PGPORT);
1115  conflines = replace_token(conflines, "#port = 5432", repltok);
1116 #endif
1117 
1118  /* set default max_wal_size and min_wal_size */
1119  snprintf(repltok, sizeof(repltok), "min_wal_size = %s",
1121  conflines = replace_token(conflines, "#min_wal_size = 80MB", repltok);
1122 
1123  snprintf(repltok, sizeof(repltok), "max_wal_size = %s",
1125  conflines = replace_token(conflines, "#max_wal_size = 1GB", repltok);
1126 
1127  snprintf(repltok, sizeof(repltok), "lc_messages = '%s'",
1129  conflines = replace_token(conflines, "#lc_messages = 'C'", repltok);
1130 
1131  snprintf(repltok, sizeof(repltok), "lc_monetary = '%s'",
1133  conflines = replace_token(conflines, "#lc_monetary = 'C'", repltok);
1134 
1135  snprintf(repltok, sizeof(repltok), "lc_numeric = '%s'",
1137  conflines = replace_token(conflines, "#lc_numeric = 'C'", repltok);
1138 
1139  snprintf(repltok, sizeof(repltok), "lc_time = '%s'",
1141  conflines = replace_token(conflines, "#lc_time = 'C'", repltok);
1142 
1143  switch (locale_date_order(lc_time))
1144  {
1145  case DATEORDER_YMD:
1146  strcpy(repltok, "datestyle = 'iso, ymd'");
1147  break;
1148  case DATEORDER_DMY:
1149  strcpy(repltok, "datestyle = 'iso, dmy'");
1150  break;
1151  case DATEORDER_MDY:
1152  default:
1153  strcpy(repltok, "datestyle = 'iso, mdy'");
1154  break;
1155  }
1156  conflines = replace_token(conflines, "#datestyle = 'iso, mdy'", repltok);
1157 
1158  snprintf(repltok, sizeof(repltok),
1159  "default_text_search_config = 'pg_catalog.%s'",
1161  conflines = replace_token(conflines,
1162  "#default_text_search_config = 'pg_catalog.simple'",
1163  repltok);
1164 
1165  if (default_timezone)
1166  {
1167  snprintf(repltok, sizeof(repltok), "timezone = '%s'",
1169  conflines = replace_token(conflines, "#timezone = 'GMT'", repltok);
1170  snprintf(repltok, sizeof(repltok), "log_timezone = '%s'",
1172  conflines = replace_token(conflines, "#log_timezone = 'GMT'", repltok);
1173  }
1174 
1175  snprintf(repltok, sizeof(repltok), "dynamic_shared_memory_type = %s",
1177  conflines = replace_token(conflines, "#dynamic_shared_memory_type = posix",
1178  repltok);
1179 
1180 #if DEFAULT_BACKEND_FLUSH_AFTER > 0
1181  snprintf(repltok, sizeof(repltok), "#backend_flush_after = %dkB",
1182  DEFAULT_BACKEND_FLUSH_AFTER * (BLCKSZ / 1024));
1183  conflines = replace_token(conflines, "#backend_flush_after = 0",
1184  repltok);
1185 #endif
1186 
1187 #if DEFAULT_BGWRITER_FLUSH_AFTER > 0
1188  snprintf(repltok, sizeof(repltok), "#bgwriter_flush_after = %dkB",
1189  DEFAULT_BGWRITER_FLUSH_AFTER * (BLCKSZ / 1024));
1190  conflines = replace_token(conflines, "#bgwriter_flush_after = 0",
1191  repltok);
1192 #endif
1193 
1194 #if DEFAULT_CHECKPOINT_FLUSH_AFTER > 0
1195  snprintf(repltok, sizeof(repltok), "#checkpoint_flush_after = %dkB",
1196  DEFAULT_CHECKPOINT_FLUSH_AFTER * (BLCKSZ / 1024));
1197  conflines = replace_token(conflines, "#checkpoint_flush_after = 0",
1198  repltok);
1199 #endif
1200 
1201 #ifndef USE_PREFETCH
1202  conflines = replace_token(conflines,
1203  "#effective_io_concurrency = 1",
1204  "#effective_io_concurrency = 0");
1205 #endif
1206 
1207 #ifdef WIN32
1208  conflines = replace_token(conflines,
1209  "#update_process_title = on",
1210  "#update_process_title = off");
1211 #endif
1212 
1213  if (strcmp(authmethodlocal, "scram-sha-256") == 0 ||
1214  strcmp(authmethodhost, "scram-sha-256") == 0)
1215  {
1216  conflines = replace_token(conflines,
1217  "#password_encryption = md5",
1218  "password_encryption = scram-sha-256");
1219  }
1220 
1221  /*
1222  * If group access has been enabled for the cluster then it makes sense to
1223  * ensure that the log files also allow group access. Otherwise a backup
1224  * from a user in the group would fail if the log files were not
1225  * relocated.
1226  */
1228  {
1229  conflines = replace_token(conflines,
1230  "#log_file_mode = 0600",
1231  "log_file_mode = 0640");
1232  }
1233 
1234  snprintf(path, sizeof(path), "%s/postgresql.conf", pg_data);
1235 
1236  writefile(path, conflines);
1237  if (chmod(path, pg_file_create_mode) != 0)
1238  {
1239  pg_log_error("could not change permissions of \"%s\": %m", path);
1240  exit(1);
1241  }
1242 
1243  /*
1244  * create the automatic configuration file to store the configuration
1245  * parameters set by ALTER SYSTEM command. The parameters present in this
1246  * file will override the value of parameters that exists before parse of
1247  * this file.
1248  */
1249  autoconflines[0] = pg_strdup("# Do not edit this file manually!\n");
1250  autoconflines[1] = pg_strdup("# It will be overwritten by the ALTER SYSTEM command.\n");
1251  autoconflines[2] = NULL;
1252 
1253  sprintf(path, "%s/postgresql.auto.conf", pg_data);
1254 
1255  writefile(path, autoconflines);
1256  if (chmod(path, pg_file_create_mode) != 0)
1257  {
1258  pg_log_error("could not change permissions of \"%s\": %m", path);
1259  exit(1);
1260  }
1261 
1262  free(conflines);
1263 
1264 
1265  /* pg_hba.conf */
1266 
1267  conflines = readfile(hba_file);
1268 
1269 #ifndef HAVE_UNIX_SOCKETS
1270  conflines = filter_lines_with_token(conflines, "@remove-line-for-nolocal@");
1271 #else
1272  conflines = replace_token(conflines, "@remove-line-for-nolocal@", "");
1273 #endif
1274 
1275 #ifdef HAVE_IPV6
1276 
1277  /*
1278  * Probe to see if there is really any platform support for IPv6, and
1279  * comment out the relevant pg_hba line if not. This avoids runtime
1280  * warnings if getaddrinfo doesn't actually cope with IPv6. Particularly
1281  * useful on Windows, where executables built on a machine with IPv6 may
1282  * have to run on a machine without.
1283  */
1284  {
1285  struct addrinfo *gai_result;
1286  struct addrinfo hints;
1287  int err = 0;
1288 
1289 #ifdef WIN32
1290  /* need to call WSAStartup before calling getaddrinfo */
1291  WSADATA wsaData;
1292 
1293  err = WSAStartup(MAKEWORD(2, 2), &wsaData);
1294 #endif
1295 
1296  /* for best results, this code should match parse_hba() */
1297  hints.ai_flags = AI_NUMERICHOST;
1298  hints.ai_family = AF_UNSPEC;
1299  hints.ai_socktype = 0;
1300  hints.ai_protocol = 0;
1301  hints.ai_addrlen = 0;
1302  hints.ai_canonname = NULL;
1303  hints.ai_addr = NULL;
1304  hints.ai_next = NULL;
1305 
1306  if (err != 0 ||
1307  getaddrinfo("::1", NULL, &hints, &gai_result) != 0)
1308  {
1309  conflines = replace_token(conflines,
1310  "host all all ::1",
1311  "#host all all ::1");
1312  conflines = replace_token(conflines,
1313  "host replication all ::1",
1314  "#host replication all ::1");
1315  }
1316  }
1317 #else /* !HAVE_IPV6 */
1318  /* If we didn't compile IPV6 support at all, always comment it out */
1319  conflines = replace_token(conflines,
1320  "host all all ::1",
1321  "#host all all ::1");
1322  conflines = replace_token(conflines,
1323  "host replication all ::1",
1324  "#host replication all ::1");
1325 #endif /* HAVE_IPV6 */
1326 
1327  /* Replace default authentication methods */
1328  conflines = replace_token(conflines,
1329  "@authmethodhost@",
1330  authmethodhost);
1331  conflines = replace_token(conflines,
1332  "@authmethodlocal@",
1333  authmethodlocal);
1334 
1335  conflines = replace_token(conflines,
1336  "@authcomment@",
1337  (strcmp(authmethodlocal, "trust") == 0 || strcmp(authmethodhost, "trust") == 0) ? AUTHTRUST_WARNING : "");
1338 
1339  snprintf(path, sizeof(path), "%s/pg_hba.conf", pg_data);
1340 
1341  writefile(path, conflines);
1342  if (chmod(path, pg_file_create_mode) != 0)
1343  {
1344  pg_log_error("could not change permissions of \"%s\": %m", path);
1345  exit(1);
1346  }
1347 
1348  free(conflines);
1349 
1350  /* pg_ident.conf */
1351 
1352  conflines = readfile(ident_file);
1353 
1354  snprintf(path, sizeof(path), "%s/pg_ident.conf", pg_data);
1355 
1356  writefile(path, conflines);
1357  if (chmod(path, pg_file_create_mode) != 0)
1358  {
1359  pg_log_error("could not change permissions of \"%s\": %m", path);
1360  exit(1);
1361  }
1362 
1363  free(conflines);
1364 
1365  check_ok();
1366 }
1367 
1368 
1369 /*
1370  * run the BKI script in bootstrap mode to create template1
1371  */
1372 static void
1374 {
1375  PG_CMD_DECL;
1376  char **line;
1377  char **bki_lines;
1378  char headerline[MAXPGPATH];
1379  char buf[64];
1380 
1381  printf(_("running bootstrap script ... "));
1382  fflush(stdout);
1383 
1384  bki_lines = readfile(bki_file);
1385 
1386  /* Check that bki file appears to be of the right version */
1387 
1388  snprintf(headerline, sizeof(headerline), "# PostgreSQL %s\n",
1389  PG_MAJORVERSION);
1390 
1391  if (strcmp(headerline, *bki_lines) != 0)
1392  {
1393  pg_log_error("input file \"%s\" does not belong to PostgreSQL %s",
1394  bki_file, PG_VERSION);
1395  fprintf(stderr,
1396  _("Check your installation or specify the correct path "
1397  "using the option -L.\n"));
1398  exit(1);
1399  }
1400 
1401  /* Substitute for various symbols used in the BKI file */
1402 
1403  sprintf(buf, "%d", NAMEDATALEN);
1404  bki_lines = replace_token(bki_lines, "NAMEDATALEN", buf);
1405 
1406  sprintf(buf, "%d", (int) sizeof(Pointer));
1407  bki_lines = replace_token(bki_lines, "SIZEOF_POINTER", buf);
1408 
1409  bki_lines = replace_token(bki_lines, "ALIGNOF_POINTER",
1410  (sizeof(Pointer) == 4) ? "i" : "d");
1411 
1412  bki_lines = replace_token(bki_lines, "FLOAT4PASSBYVAL",
1413  FLOAT4PASSBYVAL ? "true" : "false");
1414 
1415  bki_lines = replace_token(bki_lines, "FLOAT8PASSBYVAL",
1416  FLOAT8PASSBYVAL ? "true" : "false");
1417 
1418  bki_lines = replace_token(bki_lines, "POSTGRES",
1420 
1421  bki_lines = replace_token(bki_lines, "ENCODING",
1423 
1424  bki_lines = replace_token(bki_lines, "LC_COLLATE",
1426 
1427  bki_lines = replace_token(bki_lines, "LC_CTYPE",
1429 
1430  /*
1431  * Pass correct LC_xxx environment to bootstrap.
1432  *
1433  * The shell script arranged to restore the LC settings afterwards, but
1434  * there doesn't seem to be any compelling reason to do that.
1435  */
1436  snprintf(cmd, sizeof(cmd), "LC_COLLATE=%s", lc_collate);
1437  putenv(pg_strdup(cmd));
1438 
1439  snprintf(cmd, sizeof(cmd), "LC_CTYPE=%s", lc_ctype);
1440  putenv(pg_strdup(cmd));
1441 
1442  unsetenv("LC_ALL");
1443 
1444  /* Also ensure backend isn't confused by this environment var: */
1445  unsetenv("PGCLIENTENCODING");
1446 
1447  snprintf(cmd, sizeof(cmd),
1448  "\"%s\" --boot -x1 -X %u %s %s %s",
1449  backend_exec,
1450  wal_segment_size_mb * (1024 * 1024),
1451  data_checksums ? "-k" : "",
1452  boot_options,
1453  debug ? "-d 5" : "");
1454 
1455 
1456  PG_CMD_OPEN;
1457 
1458  for (line = bki_lines; *line != NULL; line++)
1459  {
1460  PG_CMD_PUTS(*line);
1461  free(*line);
1462  }
1463 
1464  PG_CMD_CLOSE;
1465 
1466  free(bki_lines);
1467 
1468  check_ok();
1469 }
1470 
1471 /*
1472  * set up the shadow password table
1473  */
1474 static void
1475 setup_auth(FILE *cmdfd)
1476 {
1477  const char *const *line;
1478  static const char *const pg_authid_setup[] = {
1479  /*
1480  * The authid table shouldn't be readable except through views, to
1481  * ensure passwords are not publicly visible.
1482  */
1483  "REVOKE ALL on pg_authid FROM public;\n\n",
1484  NULL
1485  };
1486 
1487  for (line = pg_authid_setup; *line != NULL; line++)
1488  PG_CMD_PUTS(*line);
1489 
1490  if (superuser_password)
1491  PG_CMD_PRINTF2("ALTER USER \"%s\" WITH PASSWORD E'%s';\n\n",
1493 }
1494 
1495 /*
1496  * get the superuser password if required
1497  */
1498 static void
1500 {
1501  char pwd1[100];
1502  char pwd2[100];
1503 
1504  if (pwprompt)
1505  {
1506  /*
1507  * Read password from terminal
1508  */
1509  printf("\n");
1510  fflush(stdout);
1511  simple_prompt("Enter new superuser password: ", pwd1, sizeof(pwd1), false);
1512  simple_prompt("Enter it again: ", pwd2, sizeof(pwd2), false);
1513  if (strcmp(pwd1, pwd2) != 0)
1514  {
1515  fprintf(stderr, _("Passwords didn't match.\n"));
1516  exit(1);
1517  }
1518  }
1519  else
1520  {
1521  /*
1522  * Read password from file
1523  *
1524  * Ideally this should insist that the file not be world-readable.
1525  * However, this option is mainly intended for use on Windows where
1526  * file permissions may not exist at all, so we'll skip the paranoia
1527  * for now.
1528  */
1529  FILE *pwf = fopen(pwfilename, "r");
1530  int i;
1531 
1532  if (!pwf)
1533  {
1534  pg_log_error("could not open file \"%s\" for reading: %m",
1535  pwfilename);
1536  exit(1);
1537  }
1538  if (!fgets(pwd1, sizeof(pwd1), pwf))
1539  {
1540  if (ferror(pwf))
1541  pg_log_error("could not read password from file \"%s\": %m",
1542  pwfilename);
1543  else
1544  pg_log_error("password file \"%s\" is empty",
1545  pwfilename);
1546  exit(1);
1547  }
1548  fclose(pwf);
1549 
1550  i = strlen(pwd1);
1551  while (i > 0 && (pwd1[i - 1] == '\r' || pwd1[i - 1] == '\n'))
1552  pwd1[--i] = '\0';
1553  }
1554 
1555  superuser_password = pg_strdup(pwd1);
1556 }
1557 
1558 /*
1559  * set up pg_depend
1560  */
1561 static void
1562 setup_depend(FILE *cmdfd)
1563 {
1564  const char *const *line;
1565  static const char *const pg_depend_setup[] = {
1566  /*
1567  * Make PIN entries in pg_depend for all objects made so far in the
1568  * tables that the dependency code handles. This is overkill (the
1569  * system doesn't really depend on having every last weird datatype,
1570  * for instance) but generating only the minimum required set of
1571  * dependencies seems hard.
1572  *
1573  * Catalogs that are intentionally not scanned here are:
1574  *
1575  * pg_database: it's a feature, not a bug, that template1 is not
1576  * pinned.
1577  *
1578  * pg_extension: a pinned extension isn't really an extension, hmm?
1579  *
1580  * pg_tablespace: tablespaces don't participate in the dependency
1581  * code, and DropTableSpace() explicitly protects the built-in
1582  * tablespaces.
1583  *
1584  * First delete any already-made entries; PINs override all else, and
1585  * must be the only entries for their objects.
1586  */
1587  "DELETE FROM pg_depend;\n\n",
1588  "VACUUM pg_depend;\n\n",
1589  "DELETE FROM pg_shdepend;\n\n",
1590  "VACUUM pg_shdepend;\n\n",
1591 
1592  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1593  " FROM pg_class;\n\n",
1594  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1595  " FROM pg_proc;\n\n",
1596  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1597  " FROM pg_type;\n\n",
1598  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1599  " FROM pg_cast;\n\n",
1600  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1601  " FROM pg_constraint;\n\n",
1602  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1603  " FROM pg_conversion;\n\n",
1604  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1605  " FROM pg_attrdef;\n\n",
1606  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1607  " FROM pg_language;\n\n",
1608  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1609  " FROM pg_operator;\n\n",
1610  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1611  " FROM pg_opclass;\n\n",
1612  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1613  " FROM pg_opfamily;\n\n",
1614  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1615  " FROM pg_am;\n\n",
1616  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1617  " FROM pg_amop;\n\n",
1618  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1619  " FROM pg_amproc;\n\n",
1620  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1621  " FROM pg_rewrite;\n\n",
1622  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1623  " FROM pg_trigger;\n\n",
1624 
1625  /*
1626  * restriction here to avoid pinning the public namespace
1627  */
1628  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1629  " FROM pg_namespace "
1630  " WHERE nspname LIKE 'pg%';\n\n",
1631 
1632  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1633  " FROM pg_ts_parser;\n\n",
1634  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1635  " FROM pg_ts_dict;\n\n",
1636  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1637  " FROM pg_ts_template;\n\n",
1638  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1639  " FROM pg_ts_config;\n\n",
1640  "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
1641  " FROM pg_collation;\n\n",
1642  "INSERT INTO pg_shdepend SELECT 0,0,0,0, tableoid,oid, 'p' "
1643  " FROM pg_authid;\n\n",
1644  NULL
1645  };
1646 
1647  for (line = pg_depend_setup; *line != NULL; line++)
1648  PG_CMD_PUTS(*line);
1649 }
1650 
1651 /*
1652  * set up system views
1653  */
1654 static void
1655 setup_sysviews(FILE *cmdfd)
1656 {
1657  char **line;
1658  char **sysviews_setup;
1659 
1660  sysviews_setup = readfile(system_views_file);
1661 
1662  for (line = sysviews_setup; *line != NULL; line++)
1663  {
1664  PG_CMD_PUTS(*line);
1665  free(*line);
1666  }
1667 
1668  PG_CMD_PUTS("\n\n");
1669 
1670  free(sysviews_setup);
1671 }
1672 
1673 /*
1674  * load description data
1675  */
1676 static void
1677 setup_description(FILE *cmdfd)
1678 {
1679  PG_CMD_PUTS("CREATE TEMP TABLE tmp_pg_description ( "
1680  " objoid oid, "
1681  " classname name, "
1682  " objsubid int4, "
1683  " description text);\n\n");
1684 
1685  PG_CMD_PRINTF1("COPY tmp_pg_description FROM E'%s';\n\n",
1687 
1688  PG_CMD_PUTS("INSERT INTO pg_description "
1689  " SELECT t.objoid, c.oid, t.objsubid, t.description "
1690  " FROM tmp_pg_description t, pg_class c "
1691  " WHERE c.relname = t.classname;\n\n");
1692 
1693  PG_CMD_PUTS("CREATE TEMP TABLE tmp_pg_shdescription ( "
1694  " objoid oid, "
1695  " classname name, "
1696  " description text);\n\n");
1697 
1698  PG_CMD_PRINTF1("COPY tmp_pg_shdescription FROM E'%s';\n\n",
1700 
1701  PG_CMD_PUTS("INSERT INTO pg_shdescription "
1702  " SELECT t.objoid, c.oid, t.description "
1703  " FROM tmp_pg_shdescription t, pg_class c "
1704  " WHERE c.relname = t.classname;\n\n");
1705 
1706  /* Create default descriptions for operator implementation functions */
1707  PG_CMD_PUTS("WITH funcdescs AS ( "
1708  "SELECT p.oid as p_oid, o.oid as o_oid, oprname "
1709  "FROM pg_proc p JOIN pg_operator o ON oprcode = p.oid ) "
1710  "INSERT INTO pg_description "
1711  " SELECT p_oid, 'pg_proc'::regclass, 0, "
1712  " 'implementation of ' || oprname || ' operator' "
1713  " FROM funcdescs "
1714  " WHERE NOT EXISTS (SELECT 1 FROM pg_description "
1715  " WHERE objoid = p_oid AND classoid = 'pg_proc'::regclass) "
1716  " AND NOT EXISTS (SELECT 1 FROM pg_description "
1717  " WHERE objoid = o_oid AND classoid = 'pg_operator'::regclass"
1718  " AND description LIKE 'deprecated%');\n\n");
1719 
1720  /*
1721  * Even though the tables are temp, drop them explicitly so they don't get
1722  * copied into template0/postgres databases.
1723  */
1724  PG_CMD_PUTS("DROP TABLE tmp_pg_description;\n\n");
1725  PG_CMD_PUTS("DROP TABLE tmp_pg_shdescription;\n\n");
1726 }
1727 
1728 /*
1729  * populate pg_collation
1730  */
1731 static void
1732 setup_collation(FILE *cmdfd)
1733 {
1734  /*
1735  * Add an SQL-standard name. We don't want to pin this, so it doesn't go
1736  * in pg_collation.h. But add it before reading system collations, so
1737  * that it wins if libc defines a locale named ucs_basic.
1738  */
1739  PG_CMD_PRINTF3("INSERT INTO pg_collation (oid, collname, collnamespace, collowner, collprovider, collisdeterministic, collencoding, collcollate, collctype)"
1740  "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",
1741  BOOTSTRAP_SUPERUSERID, COLLPROVIDER_LIBC, PG_UTF8);
1742 
1743  /* Now import all collations we can find in the operating system */
1744  PG_CMD_PUTS("SELECT pg_import_system_collations('pg_catalog');\n\n");
1745 }
1746 
1747 /*
1748  * load extra dictionaries (Snowball stemmers)
1749  */
1750 static void
1751 setup_dictionary(FILE *cmdfd)
1752 {
1753  char **line;
1754  char **conv_lines;
1755 
1756  conv_lines = readfile(dictionary_file);
1757  for (line = conv_lines; *line != NULL; line++)
1758  {
1759  PG_CMD_PUTS(*line);
1760  free(*line);
1761  }
1762 
1763  PG_CMD_PUTS("\n\n");
1764 
1765  free(conv_lines);
1766 }
1767 
1768 /*
1769  * Set up privileges
1770  *
1771  * We mark most system catalogs as world-readable. We don't currently have
1772  * to touch functions, languages, or databases, because their default
1773  * permissions are OK.
1774  *
1775  * Some objects may require different permissions by default, so we
1776  * make sure we don't overwrite privilege sets that have already been
1777  * set (NOT NULL).
1778  *
1779  * Also populate pg_init_privs to save what the privileges are at init
1780  * time. This is used by pg_dump to allow users to change privileges
1781  * on catalog objects and to have those privilege changes preserved
1782  * across dump/reload and pg_upgrade.
1783  *
1784  * Note that pg_init_privs is only for per-database objects and therefore
1785  * we don't include databases or tablespaces.
1786  */
1787 static void
1788 setup_privileges(FILE *cmdfd)
1789 {
1790  char **line;
1791  char **priv_lines;
1792  static char *privileges_setup[] = {
1793  "UPDATE pg_class "
1794  " SET relacl = (SELECT array_agg(a.acl) FROM "
1795  " (SELECT E'=r/\"$POSTGRES_SUPERUSERNAME\"' as acl "
1796  " UNION SELECT unnest(pg_catalog.acldefault("
1797  " CASE WHEN relkind = " CppAsString2(RELKIND_SEQUENCE) " THEN 's' "
1798  " ELSE 'r' END::\"char\"," CppAsString2(BOOTSTRAP_SUPERUSERID) "::oid))"
1799  " ) as a) "
1800  " WHERE relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1801  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1802  CppAsString2(RELKIND_SEQUENCE) ")"
1803  " AND relacl IS NULL;\n\n",
1804  "GRANT USAGE ON SCHEMA pg_catalog TO PUBLIC;\n\n",
1805  "GRANT CREATE, USAGE ON SCHEMA public TO PUBLIC;\n\n",
1806  "REVOKE ALL ON pg_largeobject FROM PUBLIC;\n\n",
1807  "INSERT INTO pg_init_privs "
1808  " (objoid, classoid, objsubid, initprivs, privtype)"
1809  " SELECT"
1810  " oid,"
1811  " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
1812  " 0,"
1813  " relacl,"
1814  " 'i'"
1815  " FROM"
1816  " pg_class"
1817  " WHERE"
1818  " relacl IS NOT NULL"
1819  " AND relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1820  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1821  CppAsString2(RELKIND_SEQUENCE) ");\n\n",
1822  "INSERT INTO pg_init_privs "
1823  " (objoid, classoid, objsubid, initprivs, privtype)"
1824  " SELECT"
1825  " pg_class.oid,"
1826  " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
1827  " pg_attribute.attnum,"
1828  " pg_attribute.attacl,"
1829  " 'i'"
1830  " FROM"
1831  " pg_class"
1832  " JOIN pg_attribute ON (pg_class.oid = pg_attribute.attrelid)"
1833  " WHERE"
1834  " pg_attribute.attacl IS NOT NULL"
1835  " AND pg_class.relkind IN (" CppAsString2(RELKIND_RELATION) ", "
1836  CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
1837  CppAsString2(RELKIND_SEQUENCE) ");\n\n",
1838  "INSERT INTO pg_init_privs "
1839  " (objoid, classoid, objsubid, initprivs, privtype)"
1840  " SELECT"
1841  " oid,"
1842  " (SELECT oid FROM pg_class WHERE relname = 'pg_proc'),"
1843  " 0,"
1844  " proacl,"
1845  " 'i'"
1846  " FROM"
1847  " pg_proc"
1848  " WHERE"
1849  " proacl IS NOT NULL;\n\n",
1850  "INSERT INTO pg_init_privs "
1851  " (objoid, classoid, objsubid, initprivs, privtype)"
1852  " SELECT"
1853  " oid,"
1854  " (SELECT oid FROM pg_class WHERE relname = 'pg_type'),"
1855  " 0,"
1856  " typacl,"
1857  " 'i'"
1858  " FROM"
1859  " pg_type"
1860  " WHERE"
1861  " typacl IS NOT NULL;\n\n",
1862  "INSERT INTO pg_init_privs "
1863  " (objoid, classoid, objsubid, initprivs, privtype)"
1864  " SELECT"
1865  " oid,"
1866  " (SELECT oid FROM pg_class WHERE relname = 'pg_language'),"
1867  " 0,"
1868  " lanacl,"
1869  " 'i'"
1870  " FROM"
1871  " pg_language"
1872  " WHERE"
1873  " lanacl IS NOT NULL;\n\n",
1874  "INSERT INTO pg_init_privs "
1875  " (objoid, classoid, objsubid, initprivs, privtype)"
1876  " SELECT"
1877  " oid,"
1878  " (SELECT oid FROM pg_class WHERE "
1879  " relname = 'pg_largeobject_metadata'),"
1880  " 0,"
1881  " lomacl,"
1882  " 'i'"
1883  " FROM"
1884  " pg_largeobject_metadata"
1885  " WHERE"
1886  " lomacl IS NOT NULL;\n\n",
1887  "INSERT INTO pg_init_privs "
1888  " (objoid, classoid, objsubid, initprivs, privtype)"
1889  " SELECT"
1890  " oid,"
1891  " (SELECT oid FROM pg_class WHERE relname = 'pg_namespace'),"
1892  " 0,"
1893  " nspacl,"
1894  " 'i'"
1895  " FROM"
1896  " pg_namespace"
1897  " WHERE"
1898  " nspacl IS NOT NULL;\n\n",
1899  "INSERT INTO pg_init_privs "
1900  " (objoid, classoid, objsubid, initprivs, privtype)"
1901  " SELECT"
1902  " oid,"
1903  " (SELECT oid FROM pg_class WHERE "
1904  " relname = 'pg_foreign_data_wrapper'),"
1905  " 0,"
1906  " fdwacl,"
1907  " 'i'"
1908  " FROM"
1909  " pg_foreign_data_wrapper"
1910  " WHERE"
1911  " fdwacl IS NOT NULL;\n\n",
1912  "INSERT INTO pg_init_privs "
1913  " (objoid, classoid, objsubid, initprivs, privtype)"
1914  " SELECT"
1915  " oid,"
1916  " (SELECT oid FROM pg_class "
1917  " WHERE relname = 'pg_foreign_server'),"
1918  " 0,"
1919  " srvacl,"
1920  " 'i'"
1921  " FROM"
1922  " pg_foreign_server"
1923  " WHERE"
1924  " srvacl IS NOT NULL;\n\n",
1925  NULL
1926  };
1927 
1928  priv_lines = replace_token(privileges_setup, "$POSTGRES_SUPERUSERNAME",
1930  for (line = priv_lines; *line != NULL; line++)
1931  PG_CMD_PUTS(*line);
1932 }
1933 
1934 /*
1935  * extract the strange version of version required for information schema
1936  * (09.08.0007abc)
1937  */
1938 static void
1940 {
1941  char *letterversion;
1942  long major = 0,
1943  minor = 0,
1944  micro = 0;
1945  char *endptr;
1946  char *vstr = pg_strdup(PG_VERSION);
1947  char *ptr;
1948 
1949  ptr = vstr + (strlen(vstr) - 1);
1950  while (ptr != vstr && (*ptr < '0' || *ptr > '9'))
1951  ptr--;
1952  letterversion = ptr + 1;
1953  major = strtol(vstr, &endptr, 10);
1954  if (*endptr)
1955  minor = strtol(endptr + 1, &endptr, 10);
1956  if (*endptr)
1957  micro = strtol(endptr + 1, &endptr, 10);
1958  snprintf(infoversion, sizeof(infoversion), "%02ld.%02ld.%04ld%s",
1959  major, minor, micro, letterversion);
1960 }
1961 
1962 /*
1963  * load info schema and populate from features file
1964  */
1965 static void
1966 setup_schema(FILE *cmdfd)
1967 {
1968  char **line;
1969  char **lines;
1970 
1971  lines = readfile(info_schema_file);
1972 
1973  for (line = lines; *line != NULL; line++)
1974  {
1975  PG_CMD_PUTS(*line);
1976  free(*line);
1977  }
1978 
1979  PG_CMD_PUTS("\n\n");
1980 
1981  free(lines);
1982 
1983  PG_CMD_PRINTF1("UPDATE information_schema.sql_implementation_info "
1984  " SET character_value = '%s' "
1985  " WHERE implementation_info_name = 'DBMS VERSION';\n\n",
1986  infoversion);
1987 
1988  PG_CMD_PRINTF1("COPY information_schema.sql_features "
1989  " (feature_id, feature_name, sub_feature_id, "
1990  " sub_feature_name, is_supported, comments) "
1991  " FROM E'%s';\n\n",
1993 }
1994 
1995 /*
1996  * load PL/pgSQL server-side language
1997  */
1998 static void
1999 load_plpgsql(FILE *cmdfd)
2000 {
2001  PG_CMD_PUTS("CREATE EXTENSION plpgsql;\n\n");
2002 }
2003 
2004 /*
2005  * clean everything up in template1
2006  */
2007 static void
2008 vacuum_db(FILE *cmdfd)
2009 {
2010  /* Run analyze before VACUUM so the statistics are frozen. */
2011  PG_CMD_PUTS("ANALYZE;\n\nVACUUM FREEZE;\n\n");
2012 }
2013 
2014 /*
2015  * copy template1 to template0
2016  */
2017 static void
2018 make_template0(FILE *cmdfd)
2019 {
2020  const char *const *line;
2021  static const char *const template0_setup[] = {
2022  "CREATE DATABASE template0 IS_TEMPLATE = true ALLOW_CONNECTIONS = false;\n\n",
2023 
2024  /*
2025  * We use the OID of template0 to determine lastsysoid
2026  */
2027  "UPDATE pg_database SET datlastsysoid = "
2028  " (SELECT oid FROM pg_database "
2029  " WHERE datname = 'template0');\n\n",
2030 
2031  /*
2032  * Explicitly revoke public create-schema and create-temp-table
2033  * privileges in template1 and template0; else the latter would be on
2034  * by default
2035  */
2036  "REVOKE CREATE,TEMPORARY ON DATABASE template1 FROM public;\n\n",
2037  "REVOKE CREATE,TEMPORARY ON DATABASE template0 FROM public;\n\n",
2038 
2039  "COMMENT ON DATABASE template0 IS 'unmodifiable empty database';\n\n",
2040 
2041  /*
2042  * Finally vacuum to clean up dead rows in pg_database
2043  */
2044  "VACUUM pg_database;\n\n",
2045  NULL
2046  };
2047 
2048  for (line = template0_setup; *line; line++)
2049  PG_CMD_PUTS(*line);
2050 }
2051 
2052 /*
2053  * copy template1 to postgres
2054  */
2055 static void
2056 make_postgres(FILE *cmdfd)
2057 {
2058  const char *const *line;
2059  static const char *const postgres_setup[] = {
2060  "CREATE DATABASE postgres;\n\n",
2061  "COMMENT ON DATABASE postgres IS 'default administrative connection database';\n\n",
2062  NULL
2063  };
2064 
2065  for (line = postgres_setup; *line; line++)
2066  PG_CMD_PUTS(*line);
2067 }
2068 
2069 /*
2070  * signal handler in case we are interrupted.
2071  *
2072  * The Windows runtime docs at
2073  * http://msdn.microsoft.com/library/en-us/vclib/html/_crt_signal.asp
2074  * specifically forbid a number of things being done from a signal handler,
2075  * including IO, memory allocation and system calls, and only allow jmpbuf
2076  * if you are handling SIGFPE.
2077  *
2078  * I avoided doing the forbidden things by setting a flag instead of calling
2079  * exit() directly.
2080  *
2081  * Also note the behaviour of Windows with SIGINT, which says this:
2082  * Note SIGINT is not supported for any Win32 application, including
2083  * Windows 98/Me and Windows NT/2000/XP. When a CTRL+C interrupt occurs,
2084  * Win32 operating systems generate a new thread to specifically handle
2085  * that interrupt. This can cause a single-thread application such as UNIX,
2086  * to become multithreaded, resulting in unexpected behavior.
2087  *
2088  * I have no idea how to handle this. (Strange they call UNIX an application!)
2089  * So this will need some testing on Windows.
2090  */
2091 static void
2092 trapsig(int signum)
2093 {
2094  /* handle systems that reset the handler, like Windows (grr) */
2095  pqsignal(signum, trapsig);
2096  caught_signal = true;
2097 }
2098 
2099 /*
2100  * call exit() if we got a signal, or else output "ok".
2101  */
2102 static void
2104 {
2105  if (caught_signal)
2106  {
2107  printf(_("caught signal\n"));
2108  fflush(stdout);
2109  exit(1);
2110  }
2111  else if (output_failed)
2112  {
2113  printf(_("could not write to child process: %s\n"),
2115  fflush(stdout);
2116  exit(1);
2117  }
2118  else
2119  {
2120  /* all seems well */
2121  printf(_("ok\n"));
2122  fflush(stdout);
2123  }
2124 }
2125 
2126 /* Hack to suppress a warning about %x from some versions of gcc */
2127 static inline size_t
2128 my_strftime(char *s, size_t max, const char *fmt, const struct tm *tm)
2129 {
2130  return strftime(s, max, fmt, tm);
2131 }
2132 
2133 /*
2134  * Determine likely date order from locale
2135  */
2136 static int
2138 {
2139  struct tm testtime;
2140  char buf[128];
2141  char *posD;
2142  char *posM;
2143  char *posY;
2144  char *save;
2145  size_t res;
2146  int result;
2147 
2148  result = DATEORDER_MDY; /* default */
2149 
2150  save = setlocale(LC_TIME, NULL);
2151  if (!save)
2152  return result;
2153  save = pg_strdup(save);
2154 
2155  setlocale(LC_TIME, locale);
2156 
2157  memset(&testtime, 0, sizeof(testtime));
2158  testtime.tm_mday = 22;
2159  testtime.tm_mon = 10; /* November, should come out as "11" */
2160  testtime.tm_year = 133; /* 2033 */
2161 
2162  res = my_strftime(buf, sizeof(buf), "%x", &testtime);
2163 
2164  setlocale(LC_TIME, save);
2165  free(save);
2166 
2167  if (res == 0)
2168  return result;
2169 
2170  posM = strstr(buf, "11");
2171  posD = strstr(buf, "22");
2172  posY = strstr(buf, "33");
2173 
2174  if (!posM || !posD || !posY)
2175  return result;
2176 
2177  if (posY < posM && posM < posD)
2178  result = DATEORDER_YMD;
2179  else if (posD < posM)
2180  result = DATEORDER_DMY;
2181  else
2182  result = DATEORDER_MDY;
2183 
2184  return result;
2185 }
2186 
2187 /*
2188  * Verify that locale name is valid for the locale category.
2189  *
2190  * If successful, and canonname isn't NULL, a malloc'd copy of the locale's
2191  * canonical name is stored there. This is especially useful for figuring out
2192  * what locale name "" means (ie, the environment value). (Actually,
2193  * it seems that on most implementations that's the only thing it's good for;
2194  * we could wish that setlocale gave back a canonically spelled version of
2195  * the locale name, but typically it doesn't.)
2196  *
2197  * this should match the backend's check_locale() function
2198  */
2199 static void
2200 check_locale_name(int category, const char *locale, char **canonname)
2201 {
2202  char *save;
2203  char *res;
2204 
2205  if (canonname)
2206  *canonname = NULL; /* in case of failure */
2207 
2208  save = setlocale(category, NULL);
2209  if (!save)
2210  {
2211  pg_log_error("setlocale() failed");
2212  exit(1);
2213  }
2214 
2215  /* save may be pointing at a modifiable scratch variable, so copy it. */
2216  save = pg_strdup(save);
2217 
2218  /* for setlocale() call */
2219  if (!locale)
2220  locale = "";
2221 
2222  /* set the locale with setlocale, to see if it accepts it. */
2223  res = setlocale(category, locale);
2224 
2225  /* save canonical name if requested. */
2226  if (res && canonname)
2227  *canonname = pg_strdup(res);
2228 
2229  /* restore old value. */
2230  if (!setlocale(category, save))
2231  {
2232  pg_log_error("failed to restore old locale \"%s\"", save);
2233  exit(1);
2234  }
2235  free(save);
2236 
2237  /* complain if locale wasn't valid */
2238  if (res == NULL)
2239  {
2240  if (*locale)
2241  pg_log_error("invalid locale name \"%s\"", locale);
2242  else
2243  {
2244  /*
2245  * If no relevant switch was given on command line, locale is an
2246  * empty string, which is not too helpful to report. Presumably
2247  * setlocale() found something it did not like in the environment.
2248  * Ideally we'd report the bad environment variable, but since
2249  * setlocale's behavior is implementation-specific, it's hard to
2250  * be sure what it didn't like. Print a safe generic message.
2251  */
2252  pg_log_error("invalid locale settings; check LANG and LC_* environment variables");
2253  }
2254  exit(1);
2255  }
2256 }
2257 
2258 /*
2259  * check if the chosen encoding matches the encoding required by the locale
2260  *
2261  * this should match the similar check in the backend createdb() function
2262  */
2263 static bool
2264 check_locale_encoding(const char *locale, int user_enc)
2265 {
2266  int locale_enc;
2267 
2268  locale_enc = pg_get_encoding_from_locale(locale, true);
2269 
2270  /* See notes in createdb() to understand these tests */
2271  if (!(locale_enc == user_enc ||
2272  locale_enc == PG_SQL_ASCII ||
2273  locale_enc == -1 ||
2274 #ifdef WIN32
2275  user_enc == PG_UTF8 ||
2276 #endif
2277  user_enc == PG_SQL_ASCII))
2278  {
2279  pg_log_error("encoding mismatch");
2280  fprintf(stderr,
2281  _("The encoding you selected (%s) and the encoding that the\n"
2282  "selected locale uses (%s) do not match. This would lead to\n"
2283  "misbehavior in various character string processing functions.\n"
2284  "Rerun %s and either do not specify an encoding explicitly,\n"
2285  "or choose a matching combination.\n"),
2286  pg_encoding_to_char(user_enc),
2287  pg_encoding_to_char(locale_enc),
2288  progname);
2289  return false;
2290  }
2291  return true;
2292 }
2293 
2294 /*
2295  * set up the locale variables
2296  *
2297  * assumes we have called setlocale(LC_ALL, "") -- see set_pglocale_pgservice
2298  */
2299 static void
2301 {
2302  char *canonname;
2303 
2304  /* set empty lc_* values to locale config if set */
2305 
2306  if (locale)
2307  {
2308  if (!lc_ctype)
2309  lc_ctype = locale;
2310  if (!lc_collate)
2311  lc_collate = locale;
2312  if (!lc_numeric)
2313  lc_numeric = locale;
2314  if (!lc_time)
2315  lc_time = locale;
2316  if (!lc_monetary)
2317  lc_monetary = locale;
2318  if (!lc_messages)
2319  lc_messages = locale;
2320  }
2321 
2322  /*
2323  * canonicalize locale names, and obtain any missing values from our
2324  * current environment
2325  */
2326 
2327  check_locale_name(LC_CTYPE, lc_ctype, &canonname);
2328  lc_ctype = canonname;
2329  check_locale_name(LC_COLLATE, lc_collate, &canonname);
2330  lc_collate = canonname;
2331  check_locale_name(LC_NUMERIC, lc_numeric, &canonname);
2332  lc_numeric = canonname;
2333  check_locale_name(LC_TIME, lc_time, &canonname);
2334  lc_time = canonname;
2335  check_locale_name(LC_MONETARY, lc_monetary, &canonname);
2336  lc_monetary = canonname;
2337 #if defined(LC_MESSAGES) && !defined(WIN32)
2338  check_locale_name(LC_MESSAGES, lc_messages, &canonname);
2339  lc_messages = canonname;
2340 #else
2341  /* when LC_MESSAGES is not available, use the LC_CTYPE setting */
2342  check_locale_name(LC_CTYPE, lc_messages, &canonname);
2343  lc_messages = canonname;
2344 #endif
2345 }
2346 
2347 /*
2348  * print help text
2349  */
2350 static void
2351 usage(const char *progname)
2352 {
2353  printf(_("%s initializes a PostgreSQL database cluster.\n\n"), progname);
2354  printf(_("Usage:\n"));
2355  printf(_(" %s [OPTION]... [DATADIR]\n"), progname);
2356  printf(_("\nOptions:\n"));
2357  printf(_(" -A, --auth=METHOD default authentication method for local connections\n"));
2358  printf(_(" --auth-host=METHOD default authentication method for local TCP/IP connections\n"));
2359  printf(_(" --auth-local=METHOD default authentication method for local-socket connections\n"));
2360  printf(_(" [-D, --pgdata=]DATADIR location for this database cluster\n"));
2361  printf(_(" -E, --encoding=ENCODING set default encoding for new databases\n"));
2362  printf(_(" -g, --allow-group-access allow group read/execute on data directory\n"));
2363  printf(_(" --locale=LOCALE set default locale for new databases\n"));
2364  printf(_(" --lc-collate=, --lc-ctype=, --lc-messages=LOCALE\n"
2365  " --lc-monetary=, --lc-numeric=, --lc-time=LOCALE\n"
2366  " set default locale in the respective category for\n"
2367  " new databases (default taken from environment)\n"));
2368  printf(_(" --no-locale equivalent to --locale=C\n"));
2369  printf(_(" --pwfile=FILE read password for the new superuser from file\n"));
2370  printf(_(" -T, --text-search-config=CFG\n"
2371  " default text search configuration\n"));
2372  printf(_(" -U, --username=NAME database superuser name\n"));
2373  printf(_(" -W, --pwprompt prompt for a password for the new superuser\n"));
2374  printf(_(" -X, --waldir=WALDIR location for the write-ahead log directory\n"));
2375  printf(_(" --wal-segsize=SIZE size of WAL segments, in megabytes\n"));
2376  printf(_("\nLess commonly used options:\n"));
2377  printf(_(" -d, --debug generate lots of debugging output\n"));
2378  printf(_(" -k, --data-checksums use data page checksums\n"));
2379  printf(_(" -L DIRECTORY where to find the input files\n"));
2380  printf(_(" -n, --no-clean do not clean up after errors\n"));
2381  printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
2382  printf(_(" -s, --show show internal settings\n"));
2383  printf(_(" -S, --sync-only only sync data directory\n"));
2384  printf(_("\nOther options:\n"));
2385  printf(_(" -V, --version output version information, then exit\n"));
2386  printf(_(" -?, --help show this help, then exit\n"));
2387  printf(_("\nIf the data directory is not specified, the environment variable PGDATA\n"
2388  "is used.\n"));
2389  printf(_("\nReport bugs to <pgsql-bugs@lists.postgresql.org>.\n"));
2390 }
2391 
2392 static void
2393 check_authmethod_unspecified(const char **authmethod)
2394 {
2395  if (*authmethod == NULL)
2396  {
2397  authwarning = true;
2398  *authmethod = "trust";
2399  }
2400 }
2401 
2402 static void
2403 check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
2404 {
2405  const char *const *p;
2406 
2407  for (p = valid_methods; *p; p++)
2408  {
2409  if (strcmp(authmethod, *p) == 0)
2410  return;
2411  /* with space = param */
2412  if (strchr(authmethod, ' '))
2413  if (strncmp(authmethod, *p, (authmethod - strchr(authmethod, ' '))) == 0)
2414  return;
2415  }
2416 
2417  pg_log_error("invalid authentication method \"%s\" for \"%s\" connections",
2418  authmethod, conntype);
2419  exit(1);
2420 }
2421 
2422 static void
2424 {
2425  if ((strcmp(authmethodlocal, "md5") == 0 ||
2426  strcmp(authmethodlocal, "password") == 0 ||
2427  strcmp(authmethodlocal, "scram-sha-256") == 0) &&
2428  (strcmp(authmethodhost, "md5") == 0 ||
2429  strcmp(authmethodhost, "password") == 0 ||
2430  strcmp(authmethodhost, "scram-sha-256") == 0) &&
2431  !(pwprompt || pwfilename))
2432  {
2433  pg_log_error("must specify a password for the superuser to enable %s authentication",
2434  (strcmp(authmethodlocal, "md5") == 0 ||
2435  strcmp(authmethodlocal, "password") == 0 ||
2436  strcmp(authmethodlocal, "scram-sha-256") == 0)
2437  ? authmethodlocal
2438  : authmethodhost);
2439  exit(1);
2440  }
2441 }
2442 
2443 
2444 void
2446 {
2447  char *pgdata_get_env,
2448  *pgdata_set_env;
2449 
2450  if (!pg_data)
2451  {
2452  pgdata_get_env = getenv("PGDATA");
2453  if (pgdata_get_env && strlen(pgdata_get_env))
2454  {
2455  /* PGDATA found */
2456  pg_data = pg_strdup(pgdata_get_env);
2457  }
2458  else
2459  {
2460  pg_log_error("no data directory specified");
2461  fprintf(stderr,
2462  _("You must identify the directory where the data for this database system\n"
2463  "will reside. Do this with either the invocation option -D or the\n"
2464  "environment variable PGDATA.\n"));
2465  exit(1);
2466  }
2467  }
2468 
2471 
2472  /*
2473  * we have to set PGDATA for postgres rather than pass it on the command
2474  * line to avoid dumb quoting problems on Windows, and we would especially
2475  * need quotes otherwise on Windows because paths there are most likely to
2476  * have embedded spaces.
2477  */
2478  pgdata_set_env = psprintf("PGDATA=%s", pg_data);
2479  putenv(pgdata_set_env);
2480 }
2481 
2482 
2483 void
2485 {
2486  int ret;
2487 
2488  if ((ret = find_other_exec(argv0, "postgres", PG_BACKEND_VERSIONSTR,
2489  backend_exec)) < 0)
2490  {
2491  char full_path[MAXPGPATH];
2492 
2493  if (find_my_exec(argv0, full_path) < 0)
2494  strlcpy(full_path, progname, sizeof(full_path));
2495 
2496  if (ret == -1)
2497  pg_log_error("The program \"postgres\" is needed by %s but was not found in the\n"
2498  "same directory as \"%s\".\n"
2499  "Check your installation.",
2500  full_path, progname);
2501  else
2502  pg_log_error("The program \"postgres\" was found by \"%s\"\n"
2503  "but was not the same version as %s.\n"
2504  "Check your installation.",
2505  full_path, progname);
2506  exit(1);
2507  }
2508 
2509  /* store binary directory */
2510  strcpy(bin_path, backend_exec);
2511  *last_dir_separator(bin_path) = '\0';
2513 
2514  if (!share_path)
2515  {
2518  }
2519  else if (!is_absolute_path(share_path))
2520  {
2521  pg_log_error("input file location must be an absolute path");
2522  exit(1);
2523  }
2524 
2526 }
2527 
2528 void
2530 {
2531  setlocales();
2532 
2533  if (strcmp(lc_ctype, lc_collate) == 0 &&
2534  strcmp(lc_ctype, lc_time) == 0 &&
2535  strcmp(lc_ctype, lc_numeric) == 0 &&
2536  strcmp(lc_ctype, lc_monetary) == 0 &&
2537  strcmp(lc_ctype, lc_messages) == 0)
2538  printf(_("The database cluster will be initialized with locale \"%s\".\n"), lc_ctype);
2539  else
2540  {
2541  printf(_("The database cluster will be initialized with locales\n"
2542  " COLLATE: %s\n"
2543  " CTYPE: %s\n"
2544  " MESSAGES: %s\n"
2545  " MONETARY: %s\n"
2546  " NUMERIC: %s\n"
2547  " TIME: %s\n"),
2548  lc_collate,
2549  lc_ctype,
2550  lc_messages,
2551  lc_monetary,
2552  lc_numeric,
2553  lc_time);
2554  }
2555 
2556  if (!encoding)
2557  {
2558  int ctype_enc;
2559 
2560  ctype_enc = pg_get_encoding_from_locale(lc_ctype, true);
2561 
2562  if (ctype_enc == -1)
2563  {
2564  /* Couldn't recognize the locale's codeset */
2565  pg_log_error("could not find suitable encoding for locale \"%s\"",
2566  lc_ctype);
2567  fprintf(stderr, _("Rerun %s with the -E option.\n"), progname);
2568  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
2569  progname);
2570  exit(1);
2571  }
2572  else if (!pg_valid_server_encoding_id(ctype_enc))
2573  {
2574  /*
2575  * We recognized it, but it's not a legal server encoding. On
2576  * Windows, UTF-8 works with any locale, so we can fall back to
2577  * UTF-8.
2578  */
2579 #ifdef WIN32
2580  encodingid = PG_UTF8;
2581  printf(_("Encoding \"%s\" implied by locale is not allowed as a server-side encoding.\n"
2582  "The default database encoding will be set to \"%s\" instead.\n"),
2583  pg_encoding_to_char(ctype_enc),
2585 #else
2586  pg_log_error("locale \"%s\" requires unsupported encoding \"%s\"",
2587  lc_ctype, pg_encoding_to_char(ctype_enc));
2588  fprintf(stderr,
2589  _("Encoding \"%s\" is not allowed as a server-side encoding.\n"
2590  "Rerun %s with a different locale selection.\n"),
2591  pg_encoding_to_char(ctype_enc), progname);
2592  exit(1);
2593 #endif
2594  }
2595  else
2596  {
2597  encodingid = ctype_enc;
2598  printf(_("The default database encoding has accordingly been set to \"%s\".\n"),
2600  }
2601  }
2602  else
2604 
2607  exit(1); /* check_locale_encoding printed the error */
2608 
2609 }
2610 
2611 
2612 void
2614 {
2615  set_input(&bki_file, "postgres.bki");
2616  set_input(&desc_file, "postgres.description");
2617  set_input(&shdesc_file, "postgres.shdescription");
2618  set_input(&hba_file, "pg_hba.conf.sample");
2619  set_input(&ident_file, "pg_ident.conf.sample");
2620  set_input(&conf_file, "postgresql.conf.sample");
2621  set_input(&dictionary_file, "snowball_create.sql");
2622  set_input(&info_schema_file, "information_schema.sql");
2623  set_input(&features_file, "sql_features.txt");
2624  set_input(&system_views_file, "system_views.sql");
2625 
2626  if (show_setting || debug)
2627  {
2628  fprintf(stderr,
2629  "VERSION=%s\n"
2630  "PGDATA=%s\nshare_path=%s\nPGPATH=%s\n"
2631  "POSTGRES_SUPERUSERNAME=%s\nPOSTGRES_BKI=%s\n"
2632  "POSTGRES_DESCR=%s\nPOSTGRES_SHDESCR=%s\n"
2633  "POSTGRESQL_CONF_SAMPLE=%s\n"
2634  "PG_HBA_SAMPLE=%s\nPG_IDENT_SAMPLE=%s\n",
2635  PG_VERSION,
2637  username, bki_file,
2639  conf_file,
2640  hba_file, ident_file);
2641  if (show_setting)
2642  exit(0);
2643  }
2644 
2655 }
2656 
2657 
2658 void
2660 {
2662  {
2665  {
2666  printf(_("%s: could not find suitable text search configuration for locale \"%s\"\n"),
2667  progname, lc_ctype);
2668  default_text_search_config = "simple";
2669  }
2670  }
2671  else
2672  {
2673  const char *checkmatch = find_matching_ts_config(lc_ctype);
2674 
2675  if (checkmatch == NULL)
2676  {
2677  printf(_("%s: warning: suitable text search configuration for locale \"%s\" is unknown\n"),
2678  progname, lc_ctype);
2679  }
2680  else if (strcmp(checkmatch, default_text_search_config) != 0)
2681  {
2682  printf(_("%s: warning: specified text search configuration \"%s\" might not match locale \"%s\"\n"),
2684  }
2685  }
2686 
2687  printf(_("The default text search configuration will be set to \"%s\".\n"),
2689 
2690 }
2691 
2692 
2693 void
2695 {
2696  /* some of these are not valid on Windows */
2697 #ifdef SIGHUP
2699 #endif
2700 #ifdef SIGINT
2701  pqsignal(SIGINT, trapsig);
2702 #endif
2703 #ifdef SIGQUIT
2705 #endif
2706 #ifdef SIGTERM
2707  pqsignal(SIGTERM, trapsig);
2708 #endif
2709 
2710  /* Ignore SIGPIPE when writing to backend, so we can clean up */
2711 #ifdef SIGPIPE
2713 #endif
2714 
2715  /* Prevent SIGSYS so we can probe for kernel calls that might not work */
2716 #ifdef SIGSYS
2717  pqsignal(SIGSYS, SIG_IGN);
2718 #endif
2719 }
2720 
2721 
2722 void
2724 {
2725  int ret;
2726 
2727  switch ((ret = pg_check_dir(pg_data)))
2728  {
2729  case 0:
2730  /* PGDATA not there, must create it */
2731  printf(_("creating directory %s ... "),
2732  pg_data);
2733  fflush(stdout);
2734 
2736  {
2737  pg_log_error("could not create directory \"%s\": %m", pg_data);
2738  exit(1);
2739  }
2740  else
2741  check_ok();
2742 
2743  made_new_pgdata = true;
2744  break;
2745 
2746  case 1:
2747  /* Present but empty, fix permissions and use it */
2748  printf(_("fixing permissions on existing directory %s ... "),
2749  pg_data);
2750  fflush(stdout);
2751 
2752  if (chmod(pg_data, pg_dir_create_mode) != 0)
2753  {
2754  pg_log_error("could not change permissions of directory \"%s\": %m",
2755  pg_data);
2756  exit(1);
2757  }
2758  else
2759  check_ok();
2760 
2761  found_existing_pgdata = true;
2762  break;
2763 
2764  case 2:
2765  case 3:
2766  case 4:
2767  /* Present and not empty */
2768  pg_log_error("directory \"%s\" exists but is not empty", pg_data);
2769  if (ret != 4)
2770  warn_on_mount_point(ret);
2771  else
2772  fprintf(stderr,
2773  _("If you want to create a new database system, either remove or empty\n"
2774  "the directory \"%s\" or run %s\n"
2775  "with an argument other than \"%s\".\n"),
2777  exit(1); /* no further message needed */
2778 
2779  default:
2780  /* Trouble accessing directory */
2781  pg_log_error("could not access directory \"%s\": %m", pg_data);
2782  exit(1);
2783  }
2784 }
2785 
2786 
2787 /* Create WAL directory, and symlink if required */
2788 void
2790 {
2791  char *subdirloc;
2792 
2793  /* form name of the place for the subdirectory or symlink */
2794  subdirloc = psprintf("%s/pg_wal", pg_data);
2795 
2796  if (xlog_dir)
2797  {
2798  int ret;
2799 
2800  /* clean up xlog directory name, check it's absolute */
2802  if (!is_absolute_path(xlog_dir))
2803  {
2804  pg_log_error("WAL directory location must be an absolute path");
2805  exit(1);
2806  }
2807 
2808  /* check if the specified xlog directory exists/is empty */
2809  switch ((ret = pg_check_dir(xlog_dir)))
2810  {
2811  case 0:
2812  /* xlog directory not there, must create it */
2813  printf(_("creating directory %s ... "),
2814  xlog_dir);
2815  fflush(stdout);
2816 
2818  {
2819  pg_log_error("could not create directory \"%s\": %m",
2820  xlog_dir);
2821  exit(1);
2822  }
2823  else
2824  check_ok();
2825 
2826  made_new_xlogdir = true;
2827  break;
2828 
2829  case 1:
2830  /* Present but empty, fix permissions and use it */
2831  printf(_("fixing permissions on existing directory %s ... "),
2832  xlog_dir);
2833  fflush(stdout);
2834 
2835  if (chmod(xlog_dir, pg_dir_create_mode) != 0)
2836  {
2837  pg_log_error("could not change permissions of directory \"%s\": %m",
2838  xlog_dir);
2839  exit(1);
2840  }
2841  else
2842  check_ok();
2843 
2844  found_existing_xlogdir = true;
2845  break;
2846 
2847  case 2:
2848  case 3:
2849  case 4:
2850  /* Present and not empty */
2851  pg_log_error("directory \"%s\" exists but is not empty", xlog_dir);
2852  if (ret != 4)
2853  warn_on_mount_point(ret);
2854  else
2855  fprintf(stderr,
2856  _("If you want to store the WAL there, either remove or empty the directory\n"
2857  "\"%s\".\n"),
2858  xlog_dir);
2859  exit(1);
2860 
2861  default:
2862  /* Trouble accessing directory */
2863  pg_log_error("could not access directory \"%s\": %m", xlog_dir);
2864  exit(1);
2865  }
2866 
2867 #ifdef HAVE_SYMLINK
2868  if (symlink(xlog_dir, subdirloc) != 0)
2869  {
2870  pg_log_error("could not create symbolic link \"%s\": %m",
2871  subdirloc);
2872  exit(1);
2873  }
2874 #else
2875  pg_log_error("symlinks are not supported on this platform");
2876  exit(1);
2877 #endif
2878  }
2879  else
2880  {
2881  /* Without -X option, just make the subdirectory normally */
2882  if (mkdir(subdirloc, pg_dir_create_mode) < 0)
2883  {
2884  pg_log_error("could not create directory \"%s\": %m",
2885  subdirloc);
2886  exit(1);
2887  }
2888  }
2889 
2890  free(subdirloc);
2891 }
2892 
2893 
2894 void
2896 {
2897  if (error == 2)
2898  fprintf(stderr,
2899  _("It contains a dot-prefixed/invisible file, perhaps due to it being a mount point.\n"));
2900  else if (error == 3)
2901  fprintf(stderr,
2902  _("It contains a lost+found directory, perhaps due to it being a mount point.\n"));
2903 
2904  fprintf(stderr,
2905  _("Using a mount point directly as the data directory is not recommended.\n"
2906  "Create a subdirectory under the mount point.\n"));
2907 }
2908 
2909 
2910 void
2912 {
2913  PG_CMD_DECL;
2914  int i;
2915 
2916  setup_signals();
2917 
2918  /*
2919  * Set mask based on requested PGDATA permissions. pg_mode_mask, and
2920  * friends like pg_dir_create_mode, are set to owner-only by default and
2921  * then updated if -g is passed in by calling SetDataDirectoryCreatePerm()
2922  * when parsing our options (see above).
2923  */
2924  umask(pg_mode_mask);
2925 
2927 
2929 
2930  /* Create required subdirectories (other than pg_wal) */
2931  printf(_("creating subdirectories ... "));
2932  fflush(stdout);
2933 
2934  for (i = 0; i < lengthof(subdirs); i++)
2935  {
2936  char *path;
2937 
2938  path = psprintf("%s/%s", pg_data, subdirs[i]);
2939 
2940  /*
2941  * The parent directory already exists, so we only need mkdir() not
2942  * pg_mkdir_p() here, which avoids some failure modes; cf bug #13853.
2943  */
2944  if (mkdir(path, pg_dir_create_mode) < 0)
2945  {
2946  pg_log_error("could not create directory \"%s\": %m", path);
2947  exit(1);
2948  }
2949 
2950  free(path);
2951  }
2952 
2953  check_ok();
2954 
2955  /* Top level PG_VERSION is checked by bootstrapper, so make it first */
2956  write_version_file(NULL);
2957 
2958  /* Select suitable configuration settings */
2959  set_null_conf();
2961 
2962  /* Now create all the text config files */
2963  setup_config();
2964 
2965  /* Bootstrap template1 */
2967 
2968  /*
2969  * Make the per-database PG_VERSION for template1 only after init'ing it
2970  */
2971  write_version_file("base/1");
2972 
2973  /*
2974  * Create the stuff we don't need to use bootstrap mode for, using a
2975  * backend running in simple standalone mode.
2976  */
2977  fputs(_("performing post-bootstrap initialization ... "), stdout);
2978  fflush(stdout);
2979 
2980  snprintf(cmd, sizeof(cmd),
2981  "\"%s\" %s template1 >%s",
2983  DEVNULL);
2984 
2985  PG_CMD_OPEN;
2986 
2987  setup_auth(cmdfd);
2988 
2989  setup_depend(cmdfd);
2990 
2991  /*
2992  * Note that no objects created after setup_depend() will be "pinned".
2993  * They are all droppable at the whim of the DBA.
2994  */
2995 
2996  setup_sysviews(cmdfd);
2997 
2998  setup_description(cmdfd);
2999 
3000  setup_collation(cmdfd);
3001 
3002  setup_dictionary(cmdfd);
3003 
3004  setup_privileges(cmdfd);
3005 
3006  setup_schema(cmdfd);
3007 
3008  load_plpgsql(cmdfd);
3009 
3010  vacuum_db(cmdfd);
3011 
3012  make_template0(cmdfd);
3013 
3014  make_postgres(cmdfd);
3015 
3016  PG_CMD_CLOSE;
3017 
3018  check_ok();
3019 }
3020 
3021 
3022 int
3023 main(int argc, char *argv[])
3024 {
3025  static struct option long_options[] = {
3026  {"pgdata", required_argument, NULL, 'D'},
3027  {"encoding", required_argument, NULL, 'E'},
3028  {"locale", required_argument, NULL, 1},
3029  {"lc-collate", required_argument, NULL, 2},
3030  {"lc-ctype", required_argument, NULL, 3},
3031  {"lc-monetary", required_argument, NULL, 4},
3032  {"lc-numeric", required_argument, NULL, 5},
3033  {"lc-time", required_argument, NULL, 6},
3034  {"lc-messages", required_argument, NULL, 7},
3035  {"no-locale", no_argument, NULL, 8},
3036  {"text-search-config", required_argument, NULL, 'T'},
3037  {"auth", required_argument, NULL, 'A'},
3038  {"auth-local", required_argument, NULL, 10},
3039  {"auth-host", required_argument, NULL, 11},
3040  {"pwprompt", no_argument, NULL, 'W'},
3041  {"pwfile", required_argument, NULL, 9},
3042  {"username", required_argument, NULL, 'U'},
3043  {"help", no_argument, NULL, '?'},
3044  {"version", no_argument, NULL, 'V'},
3045  {"debug", no_argument, NULL, 'd'},
3046  {"show", no_argument, NULL, 's'},
3047  {"noclean", no_argument, NULL, 'n'}, /* for backwards compatibility */
3048  {"no-clean", no_argument, NULL, 'n'},
3049  {"nosync", no_argument, NULL, 'N'}, /* for backwards compatibility */
3050  {"no-sync", no_argument, NULL, 'N'},
3051  {"sync-only", no_argument, NULL, 'S'},
3052  {"waldir", required_argument, NULL, 'X'},
3053  {"wal-segsize", required_argument, NULL, 12},
3054  {"data-checksums", no_argument, NULL, 'k'},
3055  {"allow-group-access", no_argument, NULL, 'g'},
3056  {NULL, 0, NULL, 0}
3057  };
3058 
3059  /*
3060  * options with no short version return a low integer, the rest return
3061  * their short version value
3062  */
3063  int c;
3064  int option_index;
3065  char *effective_user;
3066  PQExpBuffer start_db_cmd;
3067  char pg_ctl_path[MAXPGPATH];
3068 
3069  /*
3070  * Ensure that buffering behavior of stdout matches what it is
3071  * in interactive usage (at least on most platforms). This prevents
3072  * unexpected output ordering when, eg, output is redirected to a file.
3073  * POSIX says we must do this before any other usage of these files.
3074  */
3075  setvbuf(stdout, NULL, PG_IOLBF, 0);
3076 
3077  pg_logging_init(argv[0]);
3078  progname = get_progname(argv[0]);
3079  set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("initdb"));
3080 
3081  if (argc > 1)
3082  {
3083  if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
3084  {
3085  usage(progname);
3086  exit(0);
3087  }
3088  if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
3089  {
3090  puts("initdb (PostgreSQL) " PG_VERSION);
3091  exit(0);
3092  }
3093  }
3094 
3095  /* process command-line options */
3096 
3097  while ((c = getopt_long(argc, argv, "dD:E:kL:nNU:WA:sST:X:g", long_options, &option_index)) != -1)
3098  {
3099  switch (c)
3100  {
3101  case 'A':
3103 
3104  /*
3105  * When ident is specified, use peer for local connections.
3106  * Mirrored, when peer is specified, use ident for TCP/IP
3107  * connections.
3108  */
3109  if (strcmp(authmethodhost, "ident") == 0)
3110  authmethodlocal = "peer";
3111  else if (strcmp(authmethodlocal, "peer") == 0)
3112  authmethodhost = "ident";
3113  break;
3114  case 10:
3116  break;
3117  case 11:
3119  break;
3120  case 'D':
3122  break;
3123  case 'E':
3125  break;
3126  case 'W':
3127  pwprompt = true;
3128  break;
3129  case 'U':
3131  break;
3132  case 'd':
3133  debug = true;
3134  printf(_("Running in debug mode.\n"));
3135  break;
3136  case 'n':
3137  noclean = true;
3138  printf(_("Running in no-clean mode. Mistakes will not be cleaned up.\n"));
3139  break;
3140  case 'N':
3141  do_sync = false;
3142  break;
3143  case 'S':
3144  sync_only = true;
3145  break;
3146  case 'k':
3147  data_checksums = true;
3148  break;
3149  case 'L':
3151  break;
3152  case 1:
3153  locale = pg_strdup(optarg);
3154  break;
3155  case 2:
3157  break;
3158  case 3:
3160  break;
3161  case 4:
3163  break;
3164  case 5:
3166  break;
3167  case 6:
3169  break;
3170  case 7:
3172  break;
3173  case 8:
3174  locale = "C";
3175  break;
3176  case 9:
3178  break;
3179  case 's':
3180  show_setting = true;
3181  break;
3182  case 'T':
3184  break;
3185  case 'X':
3187  break;
3188  case 12:
3190  break;
3191  case 'g':
3193  break;
3194  default:
3195  /* getopt_long already emitted a complaint */
3196  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
3197  progname);
3198  exit(1);
3199  }
3200  }
3201 
3202 
3203  /*
3204  * Non-option argument specifies data directory as long as it wasn't
3205  * already specified with -D / --pgdata
3206  */
3207  if (optind < argc && !pg_data)
3208  {
3209  pg_data = pg_strdup(argv[optind]);
3210  optind++;
3211  }
3212 
3213  if (optind < argc)
3214  {
3215  pg_log_error("too many command-line arguments (first is \"%s\")",
3216  argv[optind]);
3217  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
3218  progname);
3219  exit(1);
3220  }
3221 
3223 
3224  /* If we only need to fsync, just do it and exit */
3225  if (sync_only)
3226  {
3227  setup_pgdata();
3228 
3229  /* must check that directory is readable */
3230  if (pg_check_dir(pg_data) <= 0)
3231  {
3232  pg_log_error("could not access directory \"%s\": %m", pg_data);
3233  exit(1);
3234  }
3235 
3236  fputs(_("syncing data to disk ... "), stdout);
3237  fflush(stdout);
3238  fsync_pgdata(pg_data, PG_VERSION_NUM);
3239  check_ok();
3240  return 0;
3241  }
3242 
3243  if (pwprompt && pwfilename)
3244  {
3245  pg_log_error("password prompt and password file cannot be specified together");
3246  exit(1);
3247  }
3248 
3251 
3254 
3256 
3257  /* set wal segment size */
3258  if (str_wal_segment_size_mb == NULL)
3259  wal_segment_size_mb = (DEFAULT_XLOG_SEG_SIZE) / (1024 * 1024);
3260  else
3261  {
3262  char *endptr;
3263 
3264  /* check that the argument is a number */
3265  wal_segment_size_mb = strtol(str_wal_segment_size_mb, &endptr, 10);
3266 
3267  /* verify that wal segment size is valid */
3268  if (endptr == str_wal_segment_size_mb || *endptr != '\0')
3269  {
3270  pg_log_error("argument of --wal-segsize must be a number");
3271  exit(1);
3272  }
3273  if (!IsValidWalSegSize(wal_segment_size_mb * 1024 * 1024))
3274  {
3275  pg_log_error("argument of --wal-segsize must be a power of 2 between 1 and 1024");
3276  exit(1);
3277  }
3278  }
3279 
3281 
3282  setup_pgdata();
3283 
3284  setup_bin_paths(argv[0]);
3285 
3286  effective_user = get_id();
3287  if (!username)
3288  username = effective_user;
3289 
3290  if (strncmp(username, "pg_", 3) == 0)
3291  {
3292  pg_log_error("superuser name \"%s\" is disallowed; role names cannot begin with \"pg_\"", username);
3293  exit(1);
3294  }
3295 
3296  printf(_("The files belonging to this database system will be owned "
3297  "by user \"%s\".\n"
3298  "This user must also own the server process.\n\n"),
3299  effective_user);
3300 
3301  set_info_version();
3302 
3304 
3306 
3308 
3309  printf("\n");
3310 
3311  if (data_checksums)
3312  printf(_("Data page checksums are enabled.\n"));
3313  else
3314  printf(_("Data page checksums are disabled.\n"));
3315 
3316  if (pwprompt || pwfilename)
3317  get_su_pwd();
3318 
3319  printf("\n");
3320 
3322 
3323  if (do_sync)
3324  {
3325  fputs(_("syncing data to disk ... "), stdout);
3326  fflush(stdout);
3327  fsync_pgdata(pg_data, PG_VERSION_NUM);
3328  check_ok();
3329  }
3330  else
3331  printf(_("\nSync to disk skipped.\nThe data directory might become corrupt if the operating system crashes.\n"));
3332 
3333  if (authwarning)
3334  {
3335  printf("\n");
3336  pg_log_warning("enabling \"trust\" authentication for local connections");
3337  fprintf(stderr, _("You can change this by editing pg_hba.conf or using the option -A, or\n"
3338  "--auth-local and --auth-host, the next time you run initdb.\n"));
3339  }
3340 
3341  /*
3342  * Build up a shell command to tell the user how to start the server
3343  */
3344  start_db_cmd = createPQExpBuffer();
3345 
3346  /* Get directory specification used to start initdb ... */
3347  strlcpy(pg_ctl_path, argv[0], sizeof(pg_ctl_path));
3348  canonicalize_path(pg_ctl_path);
3349  get_parent_directory(pg_ctl_path);
3350  /* ... and tag on pg_ctl instead */
3351  join_path_components(pg_ctl_path, pg_ctl_path, "pg_ctl");
3352 
3353  /* path to pg_ctl, properly quoted */
3354  appendShellString(start_db_cmd, pg_ctl_path);
3355 
3356  /* add -D switch, with properly quoted data directory */
3357  appendPQExpBufferStr(start_db_cmd, " -D ");
3358  appendShellString(start_db_cmd, pgdata_native);
3359 
3360  /* add suggested -l switch and "start" command */
3361  /* translator: This is a placeholder in a shell command. */
3362  appendPQExpBuffer(start_db_cmd, " -l %s start", _("logfile"));
3363 
3364  printf(_("\nSuccess. You can now start the database server using:\n\n"
3365  " %s\n\n"),
3366  start_db_cmd->data);
3367 
3368  destroyPQExpBuffer(start_db_cmd);
3369 
3370  success = true;
3371  return 0;
3372 }
static int encodingid
Definition: initdb.c:152
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Definition: port.h:194
static void check_input(char *path)
Definition: initdb.c:809
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Definition: pqexpbuffer.c:115
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Definition: initdb.c:175
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Definition: initdb.c:2393
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Definition: quotes.c:33
#define required_argument
Definition: getopt_long.h:25
char * Pointer
Definition: c.h:335
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Definition: getopt.c:50
#define PG_CMD_DECL
Definition: initdb.c:289
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Definition: encode.c:522
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Definition: initdb.c:188
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Definition: initdb.c:203
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Definition: initdb.c:131
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Definition: initdb.c:154
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Definition: initdb.c:2264
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Definition: initdb.c:132
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Definition: initdb.c:127
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Definition: pqexpbuffer.c:266
#define PG_CMD_OPEN
Definition: initdb.c:291
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Definition: initdb.c:697
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Definition: initdb.c:1079
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Definition: initdb.c:129
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Definition: exec.c:129
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Definition: initdb.c:165
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Definition: getaddrinfo.h:106
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static char * buf
Definition: pg_test_fsync.c:68
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Definition: win32_port.h:230
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Definition: initdb.c:1999
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Definition: sprompt.c:37
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Definition: initdb.c:2911
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Definition: initdb.c:147
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Definition: win32_port.h:163
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Definition: port.h:86
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Definition: initdb.c:310
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Definition: path.c:854
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Definition: fe_memutils.c:85
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Definition: initdb.c:846
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Definition: c.h:358
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Definition: initdb.c:1677
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Definition: initdb.c:123
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Definition: port.h:123
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Definition: initdb.c:135
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Definition: initdb.c:2103
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Definition: xlog_internal.h:93
static bool found_existing_xlogdir
Definition: initdb.c:167
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Definition: initdb.c:164
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Definition: initdb.c:159
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Definition: win32_port.h:308
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Definition: miscadmin.h:220
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Definition: initdb.c:948
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Definition: win32_port.h:160
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Definition: initdb.c:2484
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Definition: win32_port.h:264
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Definition: initdb.c:151
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Definition: rmtree.c:42
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Definition: initdb.c:2723
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Definition: file_perm.c:18
#define PG_CMD_CLOSE
Definition: initdb.c:298
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Definition: c.h:224
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Definition: getopt_long.h:24
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Definition: initdb.c:200
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Definition: initdb.c:145
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Definition: file_perm.h:35
#define PG_TEXTDOMAIN(domain)
Definition: c.h:1121
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Definition: initdb.c:144
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Definition: initdb.c:160
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Definition: initdb.c:2128
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Definition: initdb.c:2018
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Definition: initdb.c:2137
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Definition: pqexpbuffer.c:73
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Definition: path.c:138
#define PG_IOLBF
Definition: port.h:324
#define DATEORDER_DMY
Definition: miscadmin.h:221
static char * username
Definition: initdb.c:133
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Definition: initdb.c:1062
#define PG_BACKEND_VERSIONSTR
Definition: port.h:111
int pg_get_encoding_from_locale(const char *ctype, bool write_message)
Definition: chklocale.c:433
#define DATEORDER_MDY
Definition: miscadmin.h:222
static void infile(const char *filename)
Definition: zic.c:1201
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Definition: string_utils.c:431
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Definition: initdb.c:124
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Definition: signal.c:170
#define free(a)
Definition: header.h:65
int ai_protocol
Definition: getaddrinfo.h:103
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
const char * pg_encoding_to_char(int encoding)
Definition: encnames.c:607
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Definition: initdb.c:2659
static void setup_collation(FILE *cmdfd)
Definition: initdb.c:1732
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Definition: initdb.c:146
static char ** filter_lines_with_token(char **lines, const char *token)
Definition: initdb.c:455
static bool do_sync
Definition: initdb.c:141
int ai_socktype
Definition: getaddrinfo.h:102
#define strerror
Definition: port.h:205
static void setup_schema(FILE *cmdfd)
Definition: initdb.c:1966
int main(int argc, char *argv[])
Definition: initdb.c:3023
static bool output_failed
Definition: initdb.c:170
static void setlocales(void)
Definition: initdb.c:2300
static void check_locale_name(int category, const char *locale, char **canonname)
Definition: initdb.c:2200
#define putenv(x)
Definition: win32_port.h:483
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Definition: path.c:218
static char * superuser_password
Definition: initdb.c:136
const char * name
Definition: encode.c:521
static int n_buffers
Definition: initdb.c:176
static const char *const auth_methods_host[]
Definition: initdb.c:81
static char * escape_quotes(const char *src)
Definition: initdb.c:333
static const char * dynamic_shared_memory_type
Definition: initdb.c:177
static int output_errno
Definition: initdb.c:171
static char * filename
Definition: pg_dumpall.c:91
struct addrinfo * ai_next
Definition: getaddrinfo.h:107
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Definition: exec.c:565
static void writefile(char *path, char **lines)
Definition: initdb.c:543
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Definition: getopt.c:52
static void setup_privileges(FILE *cmdfd)
Definition: initdb.c:1788
static void make_postgres(FILE *cmdfd)
Definition: initdb.c:2056
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Definition: pgcheckdir.c:31
static char bin_path[MAXPGPATH]
Definition: initdb.c:230
static void usage(const char *progname)
Definition: initdb.c:2351
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:2423
static char backend_exec[MAXPGPATH]
Definition: initdb.c:231
static char * ident_file
Definition: initdb.c:157
static char * locale
Definition: initdb.c:125
static char ** readfile(const char *path)
Definition: initdb.c:482
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Definition: srandom.c:22
static char * shdesc_file
Definition: initdb.c:155
static char * bki_file
Definition: initdb.c:153
static const char * authmethodhost
Definition: initdb.c:137
size_t ai_addrlen
Definition: getaddrinfo.h:104
static bool sync_only
Definition: initdb.c:142
#define mkdir(a, b)
Definition: win32_port.h:58
static char version_file[MAXPGPATH]
Definition: pg_ctl.c:101
#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:103
static bool success
Definition: initdb.c:163
static void check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
Definition: initdb.c:2403
static void setup_sysviews(FILE *cmdfd)
Definition: initdb.c:1655
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Definition: path.c:704
#define PG_CMD_PRINTF2(fmt, arg1, arg2)
Definition: initdb.c:316
#define snprintf
Definition: port.h:192
void setup_pgdata(void)
Definition: initdb.c:2445
#define _(x)
Definition: elog.c:84
int pg_mode_mask
Definition: file_perm.c:25
const char * langname
Definition: initdb.c:698
#define DEFAULT_MIN_WAL_SEGS
Definition: xlog_internal.h:92
static void trapsig(int signum)
Definition: initdb.c:2092
struct sockaddr * ai_addr
Definition: getaddrinfo.h:105
static char * escape_quotes_bki(const char *src)
Definition: initdb.c:355
static char * hba_file
Definition: initdb.c:156
#define DEFAULT_BACKEND_FLUSH_AFTER
#define pg_log_info(...)
Definition: logging.h:87
#define unsetenv(x)
Definition: win32_port.h:484
static void set_info_version(void)
Definition: initdb.c:1939
#define DEFAULT_PGSOCKET_DIR
static bool show_setting
Definition: initdb.c:143
static void set_input(char **dest, const char *filename)
Definition: initdb.c:800
static bool noclean
Definition: initdb.c:140
const char * get_user_name_or_exit(const char *progname)
Definition: username.c:74
int ai_family
Definition: getaddrinfo.h:101