/src/bin/initdb/initdb.c
C | 3303 lines | 2375 code | 413 blank | 515 comment | 325 complexity | 2263fc154151ddf70e80be55d63f1004 MD5 | raw file
Possible License(s): AGPL-3.0
- /*-------------------------------------------------------------------------
- *
- * initdb --- initialize a PostgreSQL installation
- *
- * initdb creates (initializes) a PostgreSQL database cluster (site,
- * instance, installation, whatever). A database cluster is a
- * collection of PostgreSQL databases all managed by the same server.
- *
- * To create the database cluster, we create the directory that contains
- * all its data, create the files that hold the global tables, create
- * a few other control files for it, and create three databases: the
- * template databases "template0" and "template1", and a default user
- * database "postgres".
- *
- * The template databases are ordinary PostgreSQL databases. template0
- * is never supposed to change after initdb, whereas template1 can be
- * changed to add site-local standard data. Either one can be copied
- * to produce a new database.
- *
- * For largely-historical reasons, the template1 database is the one built
- * by the basic bootstrap process. After it is complete, template0 and
- * the default database, postgres, are made just by copying template1.
- *
- * To create template1, we run the postgres (backend) program in bootstrap
- * mode and feed it data from the postgres.bki library file. After this
- * initial bootstrap phase, some additional stuff is created by normal
- * SQL commands fed to a standalone backend. Some of those commands are
- * just embedded into this program (yeah, it's ugly), but larger chunks
- * are taken from script files.
- *
- *
- * Note:
- * The program has some memory leakage - it isn't worth cleaning it up.
- *
- * This is a C implementation of the previous shell script for setting up a
- * PostgreSQL cluster location, and should be highly compatible with it.
- * author of C translation: Andrew Dunstan mailto:andrew@dunslane.net
- *
- * This code is released under the terms of the PostgreSQL License.
- *
- * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * src/bin/initdb/initdb.c
- *
- *-------------------------------------------------------------------------
- */
- #include "postgres_fe.h"
- #include <dirent.h>
- #include <fcntl.h>
- #include <sys/stat.h>
- #include <unistd.h>
- #include <signal.h>
- #include <time.h>
- #ifdef HAVE_SHM_OPEN
- #include "sys/mman.h"
- #endif
- #include "access/xlog_internal.h"
- #include "catalog/pg_authid_d.h"
- #include "catalog/pg_class_d.h" /* pgrminclude ignore */
- #include "catalog/pg_collation_d.h"
- #include "common/file_perm.h"
- #include "common/file_utils.h"
- #include "common/logging.h"
- #include "common/restricted_token.h"
- #include "common/username.h"
- #include "fe_utils/string_utils.h"
- #include "getaddrinfo.h"
- #include "getopt_long.h"
- #include "mb/pg_wchar.h"
- #include "miscadmin.h"
- /* Ideally this would be in a .h file, but it hardly seems worth the trouble */
- extern const char *select_default_timezone(const char *share_path);
- static const char *const auth_methods_host[] = {
- "trust", "reject", "scram-sha-256", "md5", "password", "ident", "radius",
- #ifdef ENABLE_GSS
- "gss",
- #endif
- #ifdef ENABLE_SSPI
- "sspi",
- #endif
- #ifdef USE_PAM
- "pam", "pam ",
- #endif
- #ifdef USE_BSD_AUTH
- "bsd",
- #endif
- #ifdef USE_LDAP
- "ldap",
- #endif
- #ifdef USE_SSL
- "cert",
- #endif
- NULL
- };
- static const char *const auth_methods_local[] = {
- "trust", "reject", "scram-sha-256", "md5", "password", "peer", "radius",
- #ifdef USE_PAM
- "pam", "pam ",
- #endif
- #ifdef USE_BSD_AUTH
- "bsd",
- #endif
- #ifdef USE_LDAP
- "ldap",
- #endif
- NULL
- };
- /*
- * these values are passed in by makefile defines
- */
- static char *share_path = NULL;
- /* values to be obtained from arguments */
- static char *pg_data = NULL;
- static char *encoding = NULL;
- static char *locale = NULL;
- static char *lc_collate = NULL;
- static char *lc_ctype = NULL;
- static char *lc_monetary = NULL;
- static char *lc_numeric = NULL;
- static char *lc_time = NULL;
- static char *lc_messages = NULL;
- static const char *default_text_search_config = NULL;
- static char *username = NULL;
- static bool pwprompt = false;
- static char *pwfilename = NULL;
- static char *superuser_password = NULL;
- static const char *authmethodhost = NULL;
- static const char *authmethodlocal = NULL;
- static bool debug = false;
- static bool noclean = false;
- static bool do_sync = true;
- static bool sync_only = false;
- static bool show_setting = false;
- static bool data_checksums = false;
- static char *xlog_dir = NULL;
- static char *str_wal_segment_size_mb = NULL;
- static int wal_segment_size_mb;
- /* internal vars */
- static const char *progname;
- static int encodingid;
- static char *bki_file;
- static char *hba_file;
- static char *ident_file;
- static char *conf_file;
- static char *dictionary_file;
- static char *info_schema_file;
- static char *features_file;
- static char *system_views_file;
- static bool success = false;
- static bool made_new_pgdata = false;
- static bool found_existing_pgdata = false;
- static bool made_new_xlogdir = false;
- static bool found_existing_xlogdir = false;
- static char infoversion[100];
- static bool caught_signal = false;
- static bool output_failed = false;
- static int output_errno = 0;
- static char *pgdata_native;
- /* defaults */
- static int n_connections = 10;
- static int n_buffers = 50;
- static const char *dynamic_shared_memory_type = NULL;
- static const char *default_timezone = NULL;
- /*
- * Warning messages for authentication methods
- */
- #define AUTHTRUST_WARNING \
- "# CAUTION: Configuring the system for local \"trust\" authentication\n" \
- "# allows any local user to connect as any PostgreSQL user, including\n" \
- "# the database superuser. If you do not trust all your local users,\n" \
- "# use another authentication method.\n"
- static bool authwarning = false;
- /*
- * Centralized knowledge of switches to pass to backend
- *
- * Note: we run the backend with -F (fsync disabled) and then do a single
- * pass of fsync'ing at the end. This is faster than fsync'ing each step.
- *
- * Note: in the shell-script version, we also passed PGDATA as a -D switch,
- * but here it is more convenient to pass it as an environment variable
- * (no quoting to worry about).
- */
- static const char *boot_options = "-F";
- static const char *backend_options = "--single -F -O -j -c search_path=pg_catalog -c exit_on_error=true";
- static const char *const subdirs[] = {
- "global",
- "pg_wal/archive_status",
- "pg_commit_ts",
- "pg_dynshmem",
- "pg_notify",
- "pg_serial",
- "pg_snapshots",
- "pg_subtrans",
- "pg_twophase",
- "pg_multixact",
- "pg_multixact/members",
- "pg_multixact/offsets",
- "base",
- "base/1",
- "pg_replslot",
- "pg_tblspc",
- "pg_stat",
- "pg_stat_tmp",
- "pg_xact",
- "pg_logical",
- "pg_logical/snapshots",
- "pg_logical/mappings"
- };
- /* path to 'initdb' binary directory */
- static char bin_path[MAXPGPATH];
- static char backend_exec[MAXPGPATH];
- static char **replace_token(char **lines,
- const char *token, const char *replacement);
- #ifndef HAVE_UNIX_SOCKETS
- static char **filter_lines_with_token(char **lines, const char *token);
- #endif
- static char **readfile(const char *path);
- static void writefile(char *path, char **lines);
- static FILE *popen_check(const char *command, const char *mode);
- static char *get_id(void);
- static int get_encoding_id(const char *encoding_name);
- static void set_input(char **dest, const char *filename);
- static void check_input(char *path);
- static void write_version_file(const char *extrapath);
- static void set_null_conf(void);
- static void test_config_settings(void);
- static void setup_config(void);
- static void bootstrap_template1(void);
- static void setup_auth(FILE *cmdfd);
- static void get_su_pwd(void);
- static void setup_depend(FILE *cmdfd);
- static void setup_sysviews(FILE *cmdfd);
- static void setup_description(FILE *cmdfd);
- static void setup_collation(FILE *cmdfd);
- static void setup_dictionary(FILE *cmdfd);
- static void setup_privileges(FILE *cmdfd);
- static void set_info_version(void);
- static void setup_schema(FILE *cmdfd);
- static void load_plpgsql(FILE *cmdfd);
- static void vacuum_db(FILE *cmdfd);
- static void make_template0(FILE *cmdfd);
- static void make_postgres(FILE *cmdfd);
- static void trapsig(int signum);
- static void check_ok(void);
- static char *escape_quotes(const char *src);
- static char *escape_quotes_bki(const char *src);
- static int locale_date_order(const char *locale);
- static void check_locale_name(int category, const char *locale,
- char **canonname);
- static bool check_locale_encoding(const char *locale, int encoding);
- static void setlocales(void);
- static void usage(const char *progname);
- void setup_pgdata(void);
- void setup_bin_paths(const char *argv0);
- void setup_data_file_paths(void);
- void setup_locale_encoding(void);
- void setup_signals(void);
- void setup_text_search(void);
- void create_data_directory(void);
- void create_xlog_or_symlink(void);
- void warn_on_mount_point(int error);
- void initialize_data_directory(void);
- /*
- * macros for running pipes to postgres
- */
- #define PG_CMD_DECL char cmd[MAXPGPATH]; FILE *cmdfd
- #define PG_CMD_OPEN \
- do { \
- cmdfd = popen_check(cmd, "w"); \
- if (cmdfd == NULL) \
- exit(1); /* message already printed by popen_check */ \
- } while (0)
- #define PG_CMD_CLOSE \
- do { \
- if (pclose_check(cmdfd)) \
- exit(1); /* message already printed by pclose_check */ \
- } while (0)
- #define PG_CMD_PUTS(line) \
- do { \
- if (fputs(line, cmdfd) < 0 || fflush(cmdfd) < 0) \
- output_failed = true, output_errno = errno; \
- } while (0)
- #define PG_CMD_PRINTF(fmt, ...) \
- do { \
- if (fprintf(cmdfd, fmt, __VA_ARGS__) < 0 || fflush(cmdfd) < 0) \
- output_failed = true, output_errno = errno; \
- } while (0)
- /*
- * Escape single quotes and backslashes, suitably for insertions into
- * configuration files or SQL E'' strings.
- */
- static char *
- escape_quotes(const char *src)
- {
- char *result = escape_single_quotes_ascii(src);
- if (!result)
- {
- pg_log_error("out of memory");
- exit(1);
- }
- return result;
- }
- /*
- * Escape a field value to be inserted into the BKI data.
- * Here, we first run the value through escape_quotes (which
- * will be inverted by the backend's scanstr() function) and
- * then overlay special processing of double quotes, which
- * bootscanner.l will only accept as data if converted to octal
- * representation ("\042"). We always wrap the value in double
- * quotes, even if that isn't strictly necessary.
- */
- static char *
- escape_quotes_bki(const char *src)
- {
- char *result;
- char *data = escape_quotes(src);
- char *resultp;
- char *datap;
- int nquotes = 0;
- /* count double quotes in data */
- datap = data;
- while ((datap = strchr(datap, '"')) != NULL)
- {
- nquotes++;
- datap++;
- }
- result = (char *) pg_malloc(strlen(data) + 3 + nquotes * 3);
- resultp = result;
- *resultp++ = '"';
- for (datap = data; *datap; datap++)
- {
- if (*datap == '"')
- {
- strcpy(resultp, "\\042");
- resultp += 4;
- }
- else
- *resultp++ = *datap;
- }
- *resultp++ = '"';
- *resultp = '\0';
- free(data);
- return result;
- }
- /*
- * make a copy of the array of lines, with token replaced by replacement
- * the first time it occurs on each line.
- *
- * This does most of what sed was used for in the shell script, but
- * doesn't need any regexp stuff.
- */
- static char **
- replace_token(char **lines, const char *token, const char *replacement)
- {
- int numlines = 1;
- int i;
- char **result;
- int toklen,
- replen,
- diff;
- for (i = 0; lines[i]; i++)
- numlines++;
- result = (char **) pg_malloc(numlines * sizeof(char *));
- toklen = strlen(token);
- replen = strlen(replacement);
- diff = replen - toklen;
- for (i = 0; i < numlines; i++)
- {
- char *where;
- char *newline;
- int pre;
- /* just copy pointer if NULL or no change needed */
- if (lines[i] == NULL || (where = strstr(lines[i], token)) == NULL)
- {
- result[i] = lines[i];
- continue;
- }
- /* if we get here a change is needed - set up new line */
- newline = (char *) pg_malloc(strlen(lines[i]) + diff + 1);
- pre = where - lines[i];
- memcpy(newline, lines[i], pre);
- memcpy(newline + pre, replacement, replen);
- strcpy(newline + pre + replen, lines[i] + pre + toklen);
- result[i] = newline;
- }
- return result;
- }
- /*
- * make a copy of lines without any that contain the token
- *
- * a sort of poor man's grep -v
- */
- #ifndef HAVE_UNIX_SOCKETS
- static char **
- filter_lines_with_token(char **lines, const char *token)
- {
- int numlines = 1;
- int i,
- src,
- dst;
- char **result;
- for (i = 0; lines[i]; i++)
- numlines++;
- result = (char **) pg_malloc(numlines * sizeof(char *));
- for (src = 0, dst = 0; src < numlines; src++)
- {
- if (lines[src] == NULL || strstr(lines[src], token) == NULL)
- result[dst++] = lines[src];
- }
- return result;
- }
- #endif
- /*
- * get the lines from a text file
- */
- static char **
- readfile(const char *path)
- {
- FILE *infile;
- int maxlength = 1,
- linelen = 0;
- int nlines = 0;
- int n;
- char **result;
- char *buffer;
- int c;
- if ((infile = fopen(path, "r")) == NULL)
- {
- pg_log_error("could not open file \"%s\" for reading: %m", path);
- exit(1);
- }
- /* pass over the file twice - the first time to size the result */
- while ((c = fgetc(infile)) != EOF)
- {
- linelen++;
- if (c == '\n')
- {
- nlines++;
- if (linelen > maxlength)
- maxlength = linelen;
- linelen = 0;
- }
- }
- /* handle last line without a terminating newline (yuck) */
- if (linelen)
- nlines++;
- if (linelen > maxlength)
- maxlength = linelen;
- /* set up the result and the line buffer */
- result = (char **) pg_malloc((nlines + 1) * sizeof(char *));
- buffer = (char *) pg_malloc(maxlength + 1);
- /* now reprocess the file and store the lines */
- rewind(infile);
- n = 0;
- while (fgets(buffer, maxlength + 1, infile) != NULL && n < nlines)
- result[n++] = pg_strdup(buffer);
- fclose(infile);
- free(buffer);
- result[n] = NULL;
- return result;
- }
- /*
- * write an array of lines to a file
- *
- * This is only used to write text files. Use fopen "w" not PG_BINARY_W
- * so that the resulting configuration files are nicely editable on Windows.
- */
- static void
- writefile(char *path, char **lines)
- {
- FILE *out_file;
- char **line;
- if ((out_file = fopen(path, "w")) == NULL)
- {
- pg_log_error("could not open file \"%s\" for writing: %m", path);
- exit(1);
- }
- for (line = lines; *line != NULL; line++)
- {
- if (fputs(*line, out_file) < 0)
- {
- pg_log_error("could not write file \"%s\": %m", path);
- exit(1);
- }
- free(*line);
- }
- if (fclose(out_file))
- {
- pg_log_error("could not write file \"%s\": %m", path);
- exit(1);
- }
- }
- /*
- * Open a subcommand with suitable error messaging
- */
- static FILE *
- popen_check(const char *command, const char *mode)
- {
- FILE *cmdfd;
- fflush(stdout);
- fflush(stderr);
- errno = 0;
- cmdfd = popen(command, mode);
- if (cmdfd == NULL)
- pg_log_error("could not execute command \"%s\": %m", command);
- return cmdfd;
- }
- /*
- * clean up any files we created on failure
- * if we created the data directory remove it too
- */
- static void
- cleanup_directories_atexit(void)
- {
- if (success)
- return;
- if (!noclean)
- {
- if (made_new_pgdata)
- {
- pg_log_info("removing data directory \"%s\"", pg_data);
- if (!rmtree(pg_data, true))
- pg_log_error("failed to remove data directory");
- }
- else if (found_existing_pgdata)
- {
- pg_log_info("removing contents of data directory \"%s\"",
- pg_data);
- if (!rmtree(pg_data, false))
- pg_log_error("failed to remove contents of data directory");
- }
- if (made_new_xlogdir)
- {
- pg_log_info("removing WAL directory \"%s\"", xlog_dir);
- if (!rmtree(xlog_dir, true))
- pg_log_error("failed to remove WAL directory");
- }
- else if (found_existing_xlogdir)
- {
- pg_log_info("removing contents of WAL directory \"%s\"", xlog_dir);
- if (!rmtree(xlog_dir, false))
- pg_log_error("failed to remove contents of WAL directory");
- }
- /* otherwise died during startup, do nothing! */
- }
- else
- {
- if (made_new_pgdata || found_existing_pgdata)
- pg_log_info("data directory \"%s\" not removed at user's request",
- pg_data);
- if (made_new_xlogdir || found_existing_xlogdir)
- pg_log_info("WAL directory \"%s\" not removed at user's request",
- xlog_dir);
- }
- }
- /*
- * find the current user
- *
- * on unix make sure it isn't root
- */
- static char *
- get_id(void)
- {
- const char *username;
- #ifndef WIN32
- if (geteuid() == 0) /* 0 is root's uid */
- {
- pg_log_error("cannot be run as root");
- fprintf(stderr,
- _("Please log in (using, e.g., \"su\") as the (unprivileged) user that will\n"
- "own the server process.\n"));
- exit(1);
- }
- #endif
- username = get_user_name_or_exit(progname);
- return pg_strdup(username);
- }
- static char *
- encodingid_to_string(int enc)
- {
- char result[20];
- sprintf(result, "%d", enc);
- return pg_strdup(result);
- }
- /*
- * get the encoding id for a given encoding name
- */
- static int
- get_encoding_id(const char *encoding_name)
- {
- int enc;
- if (encoding_name && *encoding_name)
- {
- if ((enc = pg_valid_server_encoding(encoding_name)) >= 0)
- return enc;
- }
- pg_log_error("\"%s\" is not a valid server encoding name",
- encoding_name ? encoding_name : "(null)");
- exit(1);
- }
- /*
- * Support for determining the best default text search configuration.
- * We key this off the first part of LC_CTYPE (ie, the language name).
- */
- struct tsearch_config_match
- {
- const char *tsconfname;
- const char *langname;
- };
- static const struct tsearch_config_match tsearch_config_languages[] =
- {
- {"arabic", "ar"},
- {"arabic", "Arabic"},
- {"danish", "da"},
- {"danish", "Danish"},
- {"dutch", "nl"},
- {"dutch", "Dutch"},
- {"english", "C"},
- {"english", "POSIX"},
- {"english", "en"},
- {"english", "English"},
- {"finnish", "fi"},
- {"finnish", "Finnish"},
- {"french", "fr"},
- {"french", "French"},
- {"german", "de"},
- {"german", "German"},
- {"greek", "el"},
- {"greek", "Greek"},
- {"hungarian", "hu"},
- {"hungarian", "Hungarian"},
- {"indonesian", "id"},
- {"indonesian", "Indonesian"},
- {"irish", "ga"},
- {"irish", "Irish"},
- {"italian", "it"},
- {"italian", "Italian"},
- {"lithuanian", "lt"},
- {"lithuanian", "Lithuanian"},
- {"nepali", "ne"},
- {"nepali", "Nepali"},
- {"norwegian", "no"},
- {"norwegian", "Norwegian"},
- {"portuguese", "pt"},
- {"portuguese", "Portuguese"},
- {"romanian", "ro"},
- {"russian", "ru"},
- {"russian", "Russian"},
- {"spanish", "es"},
- {"spanish", "Spanish"},
- {"swedish", "sv"},
- {"swedish", "Swedish"},
- {"tamil", "ta"},
- {"tamil", "Tamil"},
- {"turkish", "tr"},
- {"turkish", "Turkish"},
- {NULL, NULL} /* end marker */
- };
- /*
- * Look for a text search configuration matching lc_ctype, and return its
- * name; return NULL if no match.
- */
- static const char *
- find_matching_ts_config(const char *lc_type)
- {
- int i;
- char *langname,
- *ptr;
- /*
- * Convert lc_ctype to a language name by stripping everything after an
- * underscore (usual case) or a hyphen (Windows "locale name"; see
- * comments at IsoLocaleName()).
- *
- * XXX Should ' ' be a stop character? This would select "norwegian" for
- * the Windows locale "Norwegian (Nynorsk)_Norway.1252". If we do so, we
- * should also accept the "nn" and "nb" Unix locales.
- *
- * Just for paranoia, we also stop at '.' or '@'.
- */
- if (lc_type == NULL)
- langname = pg_strdup("");
- else
- {
- ptr = langname = pg_strdup(lc_type);
- while (*ptr &&
- *ptr != '_' && *ptr != '-' && *ptr != '.' && *ptr != '@')
- ptr++;
- *ptr = '\0';
- }
- for (i = 0; tsearch_config_languages[i].tsconfname; i++)
- {
- if (pg_strcasecmp(tsearch_config_languages[i].langname, langname) == 0)
- {
- free(langname);
- return tsearch_config_languages[i].tsconfname;
- }
- }
- free(langname);
- return NULL;
- }
- /*
- * set name of given input file variable under data directory
- */
- static void
- set_input(char **dest, const char *filename)
- {
- *dest = psprintf("%s/%s", share_path, filename);
- }
- /*
- * check that given input file exists
- */
- static void
- check_input(char *path)
- {
- struct stat statbuf;
- if (stat(path, &statbuf) != 0)
- {
- if (errno == ENOENT)
- {
- pg_log_error("file \"%s\" does not exist", path);
- fprintf(stderr,
- _("This might mean you have a corrupted installation or identified\n"
- "the wrong directory with the invocation option -L.\n"));
- }
- else
- {
- pg_log_error("could not access file \"%s\": %m", path);
- fprintf(stderr,
- _("This might mean you have a corrupted installation or identified\n"
- "the wrong directory with the invocation option -L.\n"));
- }
- exit(1);
- }
- if (!S_ISREG(statbuf.st_mode))
- {
- pg_log_error("file \"%s\" is not a regular file", path);
- fprintf(stderr,
- _("This might mean you have a corrupted installation or identified\n"
- "the wrong directory with the invocation option -L.\n"));
- exit(1);
- }
- }
- /*
- * write out the PG_VERSION file in the data dir, or its subdirectory
- * if extrapath is not NULL
- */
- static void
- write_version_file(const char *extrapath)
- {
- FILE *version_file;
- char *path;
- if (extrapath == NULL)
- path = psprintf("%s/PG_VERSION", pg_data);
- else
- path = psprintf("%s/%s/PG_VERSION", pg_data, extrapath);
- if ((version_file = fopen(path, PG_BINARY_W)) == NULL)
- {
- pg_log_error("could not open file \"%s\" for writing: %m", path);
- exit(1);
- }
- if (fprintf(version_file, "%s\n", PG_MAJORVERSION) < 0 ||
- fclose(version_file))
- {
- pg_log_error("could not write file \"%s\": %m", path);
- exit(1);
- }
- free(path);
- }
- /*
- * set up an empty config file so we can check config settings by launching
- * a test backend
- */
- static void
- set_null_conf(void)
- {
- FILE *conf_file;
- char *path;
- path = psprintf("%s/postgresql.conf", pg_data);
- conf_file = fopen(path, PG_BINARY_W);
- if (conf_file == NULL)
- {
- pg_log_error("could not open file \"%s\" for writing: %m", path);
- exit(1);
- }
- if (fclose(conf_file))
- {
- pg_log_error("could not write file \"%s\": %m", path);
- exit(1);
- }
- free(path);
- }
- /*
- * Determine which dynamic shared memory implementation should be used on
- * this platform. POSIX shared memory is preferable because the default
- * allocation limits are much higher than the limits for System V on most
- * systems that support both, but the fact that a platform has shm_open
- * doesn't guarantee that that call will succeed when attempted. So, we
- * attempt to reproduce what the postmaster will do when allocating a POSIX
- * segment in dsm_impl.c; if it doesn't work, we assume it won't work for
- * the postmaster either, and configure the cluster for System V shared
- * memory instead.
- */
- static const char *
- choose_dsm_implementation(void)
- {
- #ifdef HAVE_SHM_OPEN
- int ntries = 10;
- /* Initialize random(); this function is its only user in this program. */
- srandom((unsigned int) (getpid() ^ time(NULL)));
- while (ntries > 0)
- {
- uint32 handle;
- char name[64];
- int fd;
- handle = random();
- snprintf(name, 64, "/PostgreSQL.%u", handle);
- if ((fd = shm_open(name, O_CREAT | O_RDWR | O_EXCL, 0600)) != -1)
- {
- close(fd);
- shm_unlink(name);
- return "posix";
- }
- if (errno != EEXIST)
- break;
- --ntries;
- }
- #endif
- #ifdef WIN32
- return "windows";
- #else
- return "sysv";
- #endif
- }
- /*
- * Determine platform-specific config settings
- *
- * Use reasonable values if kernel will let us, else scale back.
- */
- static void
- test_config_settings(void)
- {
- /*
- * This macro defines the minimum shared_buffers we want for a given
- * max_connections value. The arrays show the settings to try.
- */
- #define MIN_BUFS_FOR_CONNS(nconns) ((nconns) * 10)
- static const int trial_conns[] = {
- 100, 50, 40, 30, 20
- };
- static const int trial_bufs[] = {
- 16384, 8192, 4096, 3584, 3072, 2560, 2048, 1536,
- 1000, 900, 800, 700, 600, 500,
- 400, 300, 200, 100, 50
- };
- char cmd[MAXPGPATH];
- const int connslen = sizeof(trial_conns) / sizeof(int);
- const int bufslen = sizeof(trial_bufs) / sizeof(int);
- int i,
- status,
- test_conns,
- test_buffs,
- ok_buffers = 0;
- /*
- * Need to determine working DSM implementation first so that subsequent
- * tests don't fail because DSM setting doesn't work.
- */
- printf(_("selecting dynamic shared memory implementation ... "));
- fflush(stdout);
- dynamic_shared_memory_type = choose_dsm_implementation();
- printf("%s\n", dynamic_shared_memory_type);
- /*
- * Probe for max_connections before shared_buffers, since it is subject to
- * more constraints than shared_buffers.
- */
- printf(_("selecting default max_connections ... "));
- fflush(stdout);
- for (i = 0; i < connslen; i++)
- {
- test_conns = trial_conns[i];
- test_buffs = MIN_BUFS_FOR_CONNS(test_conns);
- snprintf(cmd, sizeof(cmd),
- "\"%s\" --boot -x0 %s "
- "-c max_connections=%d "
- "-c shared_buffers=%d "
- "-c dynamic_shared_memory_type=%s "
- "< \"%s\" > \"%s\" 2>&1",
- backend_exec, boot_options,
- test_conns, test_buffs,
- dynamic_shared_memory_type,
- DEVNULL, DEVNULL);
- status = system(cmd);
- if (status == 0)
- {
- ok_buffers = test_buffs;
- break;
- }
- }
- if (i >= connslen)
- i = connslen - 1;
- n_connections = trial_conns[i];
- printf("%d\n", n_connections);
- printf(_("selecting default shared_buffers ... "));
- fflush(stdout);
- for (i = 0; i < bufslen; i++)
- {
- /* Use same amount of memory, independent of BLCKSZ */
- test_buffs = (trial_bufs[i] * 8192) / BLCKSZ;
- if (test_buffs <= ok_buffers)
- {
- test_buffs = ok_buffers;
- break;
- }
- snprintf(cmd, sizeof(cmd),
- "\"%s\" --boot -x0 %s "
- "-c max_connections=%d "
- "-c shared_buffers=%d "
- "-c dynamic_shared_memory_type=%s "
- "< \"%s\" > \"%s\" 2>&1",
- backend_exec, boot_options,
- n_connections, test_buffs,
- dynamic_shared_memory_type,
- DEVNULL, DEVNULL);
- status = system(cmd);
- if (status == 0)
- break;
- }
- n_buffers = test_buffs;
- if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
- printf("%dMB\n", (n_buffers * (BLCKSZ / 1024)) / 1024);
- else
- printf("%dkB\n", n_buffers * (BLCKSZ / 1024));
- printf(_("selecting default time zone ... "));
- fflush(stdout);
- default_timezone = select_default_timezone(share_path);
- printf("%s\n", default_timezone ? default_timezone : "GMT");
- }
- /*
- * Calculate the default wal_size with a "pretty" unit.
- */
- static char *
- pretty_wal_size(int segment_count)
- {
- int sz = wal_segment_size_mb * segment_count;
- char *result = pg_malloc(14);
- if ((sz % 1024) == 0)
- snprintf(result, 14, "%dGB", sz / 1024);
- else
- snprintf(result, 14, "%dMB", sz);
- return result;
- }
- /*
- * set up all the config files
- */
- static void
- setup_config(void)
- {
- char **conflines;
- char repltok[MAXPGPATH];
- char path[MAXPGPATH];
- char *autoconflines[3];
- fputs(_("creating configuration files ... "), stdout);
- fflush(stdout);
- /* postgresql.conf */
- conflines = readfile(conf_file);
- snprintf(repltok, sizeof(repltok), "max_connections = %d", n_connections);
- conflines = replace_token(conflines, "#max_connections = 100", repltok);
- if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
- snprintf(repltok, sizeof(repltok), "shared_buffers = %dMB",
- (n_buffers * (BLCKSZ / 1024)) / 1024);
- else
- snprintf(repltok, sizeof(repltok), "shared_buffers = %dkB",
- n_buffers * (BLCKSZ / 1024));
- conflines = replace_token(conflines, "#shared_buffers = 32MB", repltok);
- #ifdef HAVE_UNIX_SOCKETS
- snprintf(repltok, sizeof(repltok), "#unix_socket_directories = '%s'",
- DEFAULT_PGSOCKET_DIR);
- #else
- snprintf(repltok, sizeof(repltok), "#unix_socket_directories = ''");
- #endif
- conflines = replace_token(conflines, "#unix_socket_directories = '/tmp'",
- repltok);
- #if DEF_PGPORT != 5432
- snprintf(repltok, sizeof(repltok), "#port = %d", DEF_PGPORT);
- conflines = replace_token(conflines, "#port = 5432", repltok);
- #endif
- /* set default max_wal_size and min_wal_size */
- snprintf(repltok, sizeof(repltok), "min_wal_size = %s",
- pretty_wal_size(DEFAULT_MIN_WAL_SEGS));
- conflines = replace_token(conflines, "#min_wal_size = 80MB", repltok);
- snprintf(repltok, sizeof(repltok), "max_wal_size = %s",
- pretty_wal_size(DEFAULT_MAX_WAL_SEGS));
- conflines = replace_token(conflines, "#max_wal_size = 1GB", repltok);
- snprintf(repltok, sizeof(repltok), "lc_messages = '%s'",
- escape_quotes(lc_messages));
- conflines = replace_token(conflines, "#lc_messages = 'C'", repltok);
- snprintf(repltok, sizeof(repltok), "lc_monetary = '%s'",
- escape_quotes(lc_monetary));
- conflines = replace_token(conflines, "#lc_monetary = 'C'", repltok);
- snprintf(repltok, sizeof(repltok), "lc_numeric = '%s'",
- escape_quotes(lc_numeric));
- conflines = replace_token(conflines, "#lc_numeric = 'C'", repltok);
- snprintf(repltok, sizeof(repltok), "lc_time = '%s'",
- escape_quotes(lc_time));
- conflines = replace_token(conflines, "#lc_time = 'C'", repltok);
- switch (locale_date_order(lc_time))
- {
- case DATEORDER_YMD:
- strcpy(repltok, "datestyle = 'iso, ymd'");
- break;
- case DATEORDER_DMY:
- strcpy(repltok, "datestyle = 'iso, dmy'");
- break;
- case DATEORDER_MDY:
- default:
- strcpy(repltok, "datestyle = 'iso, mdy'");
- break;
- }
- conflines = replace_token(conflines, "#datestyle = 'iso, mdy'", repltok);
- snprintf(repltok, sizeof(repltok),
- "default_text_search_config = 'pg_catalog.%s'",
- escape_quotes(default_text_search_config));
- conflines = replace_token(conflines,
- "#default_text_search_config = 'pg_catalog.simple'",
- repltok);
- if (default_timezone)
- {
- snprintf(repltok, sizeof(repltok), "timezone = '%s'",
- escape_quotes(default_timezone));
- conflines = replace_token(conflines, "#timezone = 'GMT'", repltok);
- snprintf(repltok, sizeof(repltok), "log_timezone = '%s'",
- escape_quotes(default_timezone));
- conflines = replace_token(conflines, "#log_timezone = 'GMT'", repltok);
- }
- snprintf(repltok, sizeof(repltok), "dynamic_shared_memory_type = %s",
- dynamic_shared_memory_type);
- conflines = replace_token(conflines, "#dynamic_shared_memory_type = posix",
- repltok);
- #if DEFAULT_BACKEND_FLUSH_AFTER > 0
- snprintf(repltok, sizeof(repltok), "#backend_flush_after = %dkB",
- DEFAULT_BACKEND_FLUSH_AFTER * (BLCKSZ / 1024));
- conflines = replace_token(conflines, "#backend_flush_after = 0",
- repltok);
- #endif
- #if DEFAULT_BGWRITER_FLUSH_AFTER > 0
- snprintf(repltok, sizeof(repltok), "#bgwriter_flush_after = %dkB",
- DEFAULT_BGWRITER_FLUSH_AFTER * (BLCKSZ / 1024));
- conflines = replace_token(conflines, "#bgwriter_flush_after = 0",
- repltok);
- #endif
- #if DEFAULT_CHECKPOINT_FLUSH_AFTER > 0
- snprintf(repltok, sizeof(repltok), "#checkpoint_flush_after = %dkB",
- DEFAULT_CHECKPOINT_FLUSH_AFTER * (BLCKSZ / 1024));
- conflines = replace_token(conflines, "#checkpoint_flush_after = 0",
- repltok);
- #endif
- #ifndef USE_PREFETCH
- conflines = replace_token(conflines,
- "#effective_io_concurrency = 1",
- "#effective_io_concurrency = 0");
- #endif
- #ifdef WIN32
- conflines = replace_token(conflines,
- "#update_process_title = on",
- "#update_process_title = off");
- #endif
- if (strcmp(authmethodlocal, "scram-sha-256") == 0 ||
- strcmp(authmethodhost, "scram-sha-256") == 0)
- {
- conflines = replace_token(conflines,
- "#password_encryption = md5",
- "password_encryption = scram-sha-256");
- }
- /*
- * If group access has been enabled for the cluster then it makes sense to
- * ensure that the log files also allow group access. Otherwise a backup
- * from a user in the group would fail if the log files were not
- * relocated.
- */
- if (pg_dir_create_mode == PG_DIR_MODE_GROUP)
- {
- conflines = replace_token(conflines,
- "#log_file_mode = 0600",
- "log_file_mode = 0640");
- }
- snprintf(path, sizeof(path), "%s/postgresql.conf", pg_data);
- writefile(path, conflines);
- if (chmod(path, pg_file_create_mode) != 0)
- {
- pg_log_error("could not change permissions of \"%s\": %m", path);
- exit(1);
- }
- /*
- * create the automatic configuration file to store the configuration
- * parameters set by ALTER SYSTEM command. The parameters present in this
- * file will override the value of parameters that exists before parse of
- * this file.
- */
- autoconflines[0] = pg_strdup("# Do not edit this file manually!\n");
- autoconflines[1] = pg_strdup("# It will be overwritten by the ALTER SYSTEM command.\n");
- autoconflines[2] = NULL;
- sprintf(path, "%s/postgresql.auto.conf", pg_data);
- writefile(path, autoconflines);
- if (chmod(path, pg_file_create_mode) != 0)
- {
- pg_log_error("could not change permissions of \"%s\": %m", path);
- exit(1);
- }
- free(conflines);
- /* pg_hba.conf */
- conflines = readfile(hba_file);
- #ifndef HAVE_UNIX_SOCKETS
- conflines = filter_lines_with_token(conflines, "@remove-line-for-nolocal@");
- #else
- conflines = replace_token(conflines, "@remove-line-for-nolocal@", "");
- #endif
- #ifdef HAVE_IPV6
- /*
- * Probe to see if there is really any platform support for IPv6, and
- * comment out the relevant pg_hba line if not. This avoids runtime
- * warnings if getaddrinfo doesn't actually cope with IPv6. Particularly
- * useful on Windows, where executables built on a machine with IPv6 may
- * have to run on a machine without.
- */
- {
- struct addrinfo *gai_result;
- struct addrinfo hints;
- int err = 0;
- #ifdef WIN32
- /* need to call WSAStartup before calling getaddrinfo */
- WSADATA wsaData;
- err = WSAStartup(MAKEWORD(2, 2), &wsaData);
- #endif
- /* for best results, this code should match parse_hba_line() */
- hints.ai_flags = AI_NUMERICHOST;
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = 0;
- hints.ai_protocol = 0;
- hints.ai_addrlen = 0;
- hints.ai_canonname = NULL;
- hints.ai_addr = NULL;
- hints.ai_next = NULL;
- if (err != 0 ||
- getaddrinfo("::1", NULL, &hints, &gai_result) != 0)
- {
- conflines = replace_token(conflines,
- "host all all ::1",
- "#host all all ::1");
- conflines = replace_token(conflines,
- "host replication all ::1",
- "#host replication all ::1");
- }
- }
- #else /* !HAVE_IPV6 */
- /* If we didn't compile IPV6 support at all, always comment it out */
- conflines = replace_token(conflines,
- "host all all ::1",
- "#host all all ::1");
- conflines = replace_token(conflines,
- "host replication all ::1",
- "#host replication all ::1");
- #endif /* HAVE_IPV6 */
- /* Replace default authentication methods */
- conflines = replace_token(conflines,
- "@authmethodhost@",
- authmethodhost);
- conflines = replace_token(conflines,
- "@authmethodlocal@",
- authmethodlocal);
- conflines = replace_token(conflines,
- "@authcomment@",
- (strcmp(authmethodlocal, "trust") == 0 || strcmp(authmethodhost, "trust") == 0) ? AUTHTRUST_WARNING : "");
- snprintf(path, sizeof(path), "%s/pg_hba.conf", pg_data);
- writefile(path, conflines);
- if (chmod(path, pg_file_create_mode) != 0)
- {
- pg_log_error("could not change permissions of \"%s\": %m", path);
- exit(1);
- }
- free(conflines);
- /* pg_ident.conf */
- conflines = readfile(ident_file);
- snprintf(path, sizeof(path), "%s/pg_ident.conf", pg_data);
- writefile(path, conflines);
- if (chmod(path, pg_file_create_mode) != 0)
- {
- pg_log_error("could not change permissions of \"%s\": %m", path);
- exit(1);
- }
- free(conflines);
- check_ok();
- }
- /*
- * run the BKI script in bootstrap mode to create template1
- */
- static void
- bootstrap_template1(void)
- {
- PG_CMD_DECL;
- char **line;
- char **bki_lines;
- char headerline[MAXPGPATH];
- char buf[64];
- printf(_("running bootstrap script ... "));
- fflush(stdout);
- bki_lines = readfile(bki_file);
- /* Check that bki file appears to be of the right version */
- snprintf(headerline, sizeof(headerline), "# PostgreSQL %s\n",
- PG_MAJORVERSION);
- if (strcmp(headerline, *bki_lines) != 0)
- {
- pg_log_error("input file \"%s\" does not belong to PostgreSQL %s",
- bki_file, PG_VERSION);
- fprintf(stderr,
- _("Check your installation or specify the correct path "
- "using the option -L.\n"));
- exit(1);
- }
- /* Substitute for various symbols used in the BKI file */
- sprintf(buf, "%d", NAMEDATALEN);
- bki_lines = replace_token(bki_lines, "NAMEDATALEN", buf);
- sprintf(buf, "%d", (int) sizeof(Pointer));
- bki_lines = replace_token(bki_lines, "SIZEOF_POINTER", buf);
- bki_lines = replace_token(bki_lines, "ALIGNOF_POINTER",
- (sizeof(Pointer) == 4) ? "i" : "d");
- bki_lines = replace_token(bki_lines, "FLOAT8PASSBYVAL",
- FLOAT8PASSBYVAL ? "true" : "false");
- bki_lines = replace_token(bki_lines, "POSTGRES",
- escape_quotes_bki(username));
- bki_lines = replace_token(bki_lines, "ENCODING",
- encodingid_to_string(encodingid));
- bki_lines = replace_token(bki_lines, "LC_COLLATE",
- escape_quotes_bki(lc_collate));
- bki_lines = replace_token(bki_lines, "LC_CTYPE",
- escape_quotes_bki(lc_ctype));
- /* Also ensure backend isn't confused by this environment var: */
- unsetenv("PGCLIENTENCODING");
- snprintf(cmd, sizeof(cmd),
- "\"%s\" --boot -x1 -X %u %s %s %s",
- backend_exec,
- wal_segment_size_mb * (1024 * 1024),
- data_checksums ? "-k" : "",
- boot_options,
- debug ? "-d 5" : "");
- PG_CMD_OPEN;
- for (line = bki_lines; *line != NULL; line++)
- {
- PG_CMD_PUTS(*line);
- free(*line);
- }
- PG_CMD_CLOSE;
- free(bki_lines);
- check_ok();
- }
- /*
- * set up the shadow password table
- */
- static void
- setup_auth(FILE *cmdfd)
- {
- const char *const *line;
- static const char *const pg_authid_setup[] = {
- /*
- * The authid table shouldn't be readable except through views, to
- * ensure passwords are not publicly visible.
- */
- "REVOKE ALL on pg_authid FROM public;\n\n",
- NULL
- };
- for (line = pg_authid_setup; *line != NULL; line++)
- PG_CMD_PUTS(*line);
- if (superuser_password)
- PG_CMD_PRINTF("ALTER USER \"%s\" WITH PASSWORD E'%s';\n\n",
- username, escape_quotes(superuser_password));
- }
- /*
- * get the superuser password if required
- */
- static void
- get_su_pwd(void)
- {
- char pwd1[100];
- char pwd2[100];
- if (pwprompt)
- {
- /*
- * Read password from terminal
- */
- printf("\n");
- fflush(stdout);
- simple_prompt("Enter new superuser password: ", pwd1, sizeof(pwd1), false);
- simple_prompt("Enter it again: ", pwd2, sizeof(pwd2), false);
- if (strcmp(pwd1, pwd2) != 0)
- {
- fprintf(stderr, _("Passwords didn't match.\n"));
- exit(1);
- }
- }
- else
- {
- /*
- * Read password from file
- *
- * Ideally this should insist that the file not be world-readable.
- * However, this option is mainly intended for use on Windows where
- * file permissions may not exist at all, so we'll skip the paranoia
- * for now.
- */
- FILE *pwf = fopen(pwfilename, "r");
- int i;
- if (!pwf)
- {
- pg_log_error("could not open file \"%s\" for reading: %m",
- pwfilename);
- exit(1);
- }
- if (!fgets(pwd1, sizeof(pwd1), pwf))
- {
- if (ferror(pwf))
- pg_log_error("could not read password from file \"%s\": %m",
- pwfilename);
- else
- pg_log_error("password file \"%s\" is empty",
- pwfilename);
- exit(1);
- }
- fclose(pwf);
- i = strlen(pwd1);
- while (i > 0 && (pwd1[i - 1] == '\r' || pwd1[i - 1] == '\n'))
- pwd1[--i] = '\0';
- }
- superuser_password = pg_strdup(pwd1);
- }
- /*
- * set up pg_depend
- */
- static void
- setup_depend(FILE *cmdfd)
- {
- const char *const *line;
- static const char *const pg_depend_setup[] = {
- /*
- * Make PIN entries in pg_depend for all objects made so far in the
- * tables that the dependency code handles. This is overkill (the
- * system doesn't really depend on having every last weird datatype,
- * for instance) but generating only the minimum required set of
- * dependencies seems hard.
- *
- * Catalogs that are intentionally not scanned here are:
- *
- * pg_database: it's a feature, not a bug, that template1 is not
- * pinned.
- *
- * pg_extension: a pinned extension isn't really an extension, hmm?
- *
- * pg_tablespace: tablespaces don't participate in the dependency
- * code, and DropTableSpace() explicitly protects the built-in
- * tablespaces.
- *
- * First delete any already-made entries; PINs override all else, and
- * must be the only entries for their objects.
- */
- "DELETE FROM pg_depend;\n\n",
- "VACUUM pg_depend;\n\n",
- "DELETE FROM pg_shdepend;\n\n",
- "VACUUM pg_shdepend;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_class;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_proc;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_type;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_cast;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_constraint;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_conversion;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_attrdef;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_language;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_operator;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_opclass;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_opfamily;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_am;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_amop;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_amproc;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_rewrite;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_trigger;\n\n",
- /*
- * restriction here to avoid pinning the public namespace
- */
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_namespace "
- " WHERE nspname LIKE 'pg%';\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_ts_parser;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_ts_dict;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_ts_template;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_ts_config;\n\n",
- "INSERT INTO pg_depend SELECT 0,0,0, tableoid,oid,0, 'p' "
- " FROM pg_collation;\n\n",
- "INSERT INTO pg_shdepend SELECT 0,0,0,0, tableoid,oid, 'p' "
- " FROM pg_authid;\n\n",
- NULL
- };
- for (line = pg_depend_setup; *line != NULL; line++)
- PG_CMD_PUTS(*line);
- }
- /*
- * set up system views
- */
- static void
- setup_sysviews(FILE *cmdfd)
- {
- char **line;
- char **sysviews_setup;
- sysviews_setup = readfile(system_views_file);
- for (line = sysviews_setup; *line != NULL; line++)
- {
- PG_CMD_PUTS(*line);
- free(*line);
- }
- PG_CMD_PUTS("\n\n");
- free(sysviews_setup);
- }
- /*
- * fill in extra description data
- */
- static void
- setup_description(FILE *cmdfd)
- {
- /* Create default descriptions for operator implementation functions */
- PG_CMD_PUTS("WITH funcdescs AS ( "
- "SELECT p.oid as p_oid, o.oid as o_oid, oprname "
- "FROM pg_proc p JOIN pg_operator o ON oprcode = p.oid ) "
- "INSERT INTO pg_description "
- " SELECT p_oid, 'pg_proc'::regclass, 0, "
- " 'implementation of ' || oprname || ' operator' "
- " FROM funcdescs "
- " WHERE NOT EXISTS (SELECT 1 FROM pg_description "
- " WHERE objoid = p_oid AND classoid = 'pg_proc'::regclass) "
- " AND NOT EXISTS (SELECT 1 FROM pg_description "
- " WHERE objoid = o_oid AND classoid = 'pg_operator'::regclass"
- " AND description LIKE 'deprecated%');\n\n");
- }
- /*
- * populate pg_collation
- */
- static void
- setup_collation(FILE *cmdfd)
- {
- /*
- * Add an SQL-standard name. We don't want to pin this, so it doesn't go
- * in pg_collation.h. But add it before reading system collations, so
- * that it wins if libc defines a locale named ucs_basic.
- */
- PG_CMD_PRINTF("INSERT INTO pg_collation (oid, collname, collnamespace, collowner, collprovider, collisdeterministic, collencoding, collcollate, collctype)"
- "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",
- BOOTSTRAP_SUPERUSERID, COLLPROVIDER_LIBC, PG_UTF8);
- /* Now import all collations we can find in the operating system */
- PG_CMD_PUTS("SELECT pg_import_system_collations('pg_catalog');\n\n");
- }
- /*
- * load extra dictionaries (Snowball stemmers)
- */
- static void
- setup_dictionary(FILE *cmdfd)
- {
- char **line;
- char **conv_lines;
- conv_lines = readfile(dictionary_file);
- for (line = conv_lines; *line != NULL; line++)
- {
- PG_CMD_PUTS(*line);
- free(*line);
- }
- PG_CMD_PUTS("\n\n");
- free(conv_lines);
- }
- /*
- * Set up privileges
- *
- * We mark most system catalogs as world-readable. We don't currently have
- * to touch functions, languages, or databases, because their default
- * permissions are OK.
- *
- * Some objects may require different permissions by default, so we
- * make sure we don't overwrite privilege sets that have already been
- * set (NOT NULL).
- *
- * Also populate pg_init_privs to save what the privileges are at init
- * time. This is used by pg_dump to allow users to change privileges
- * on catalog objects and to have those privilege changes preserved
- * across dump/reload and pg_upgrade.
- *
- * Note that pg_init_privs is only for per-database objects and therefore
- * we don't include databases or tablespaces.
- */
- static void
- setup_privileges(FILE *cmdfd)
- {
- char **line;
- char **priv_lines;
- static char *privileges_setup[] = {
- "UPDATE pg_class "
- " SET relacl = (SELECT array_agg(a.acl) FROM "
- " (SELECT E'=r/\"$POSTGRES_SUPERUSERNAME\"' as acl "
- " UNION SELECT unnest(pg_catalog.acldefault("
- " CASE WHEN relkind = " CppAsString2(RELKIND_SEQUENCE) " THEN 's' "
- " ELSE 'r' END::\"char\"," CppAsString2(BOOTSTRAP_SUPERUSERID) "::oid))"
- " ) as a) "
- " WHERE relkind IN (" CppAsString2(RELKIND_RELATION) ", "
- CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
- CppAsString2(RELKIND_SEQUENCE) ")"
- " AND relacl IS NULL;\n\n",
- "GRANT USAGE ON SCHEMA pg_catalog TO PUBLIC;\n\n",
- "GRANT CREATE, USAGE ON SCHEMA public TO PUBLIC;\n\n",
- "REVOKE ALL ON pg_largeobject FROM PUBLIC;\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
- " 0,"
- " relacl,"
- " 'i'"
- " FROM"
- " pg_class"
- " WHERE"
- " relacl IS NOT NULL"
- " AND relkind IN (" CppAsString2(RELKIND_RELATION) ", "
- CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
- CppAsString2(RELKIND_SEQUENCE) ");\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " pg_class.oid,"
- " (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
- " pg_attribute.attnum,"
- " pg_attribute.attacl,"
- " 'i'"
- " FROM"
- " pg_class"
- " JOIN pg_attribute ON (pg_class.oid = pg_attribute.attrelid)"
- " WHERE"
- " pg_attribute.attacl IS NOT NULL"
- " AND pg_class.relkind IN (" CppAsString2(RELKIND_RELATION) ", "
- CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
- CppAsString2(RELKIND_SEQUENCE) ");\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class WHERE relname = 'pg_proc'),"
- " 0,"
- " proacl,"
- " 'i'"
- " FROM"
- " pg_proc"
- " WHERE"
- " proacl IS NOT NULL;\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class WHERE relname = 'pg_type'),"
- " 0,"
- " typacl,"
- " 'i'"
- " FROM"
- " pg_type"
- " WHERE"
- " typacl IS NOT NULL;\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class WHERE relname = 'pg_language'),"
- " 0,"
- " lanacl,"
- " 'i'"
- " FROM"
- " pg_language"
- " WHERE"
- " lanacl IS NOT NULL;\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class WHERE "
- " relname = 'pg_largeobject_metadata'),"
- " 0,"
- " lomacl,"
- " 'i'"
- " FROM"
- " pg_largeobject_metadata"
- " WHERE"
- " lomacl IS NOT NULL;\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class WHERE relname = 'pg_namespace'),"
- " 0,"
- " nspacl,"
- " 'i'"
- " FROM"
- " pg_namespace"
- " WHERE"
- " nspacl IS NOT NULL;\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class WHERE "
- " relname = 'pg_foreign_data_wrapper'),"
- " 0,"
- " fdwacl,"
- " 'i'"
- " FROM"
- " pg_foreign_data_wrapper"
- " WHERE"
- " fdwacl IS NOT NULL;\n\n",
- "INSERT INTO pg_init_privs "
- " (objoid, classoid, objsubid, initprivs, privtype)"
- " SELECT"
- " oid,"
- " (SELECT oid FROM pg_class "
- " WHERE relname = 'pg_foreign_server'),"
- " 0,"
- " srvacl,"
- " 'i'"
- " FROM"
- " pg_foreign_server"
- " WHERE"
- " srvacl IS NOT NULL;\n\n",
- NULL
- };
- priv_lines = replace_token(privileges_setup, "$POSTGRES_SUPERUSERNAME",
- escape_quotes(username));
- for (line = priv_lines; *line != NULL; line++)
- PG_CMD_PUTS(*line);
- }
- /*
- * extract the strange version of version required for information schema
- * (09.08.0007abc)
- */
- static void
- set_info_version(void)
- {
- char *letterversion;
- long major = 0,
- minor = 0,
- micro = 0;
- char *endptr;
- char *vstr = pg_strdup(PG_VERSION);
- char *ptr;
- ptr = vstr + (strlen(vstr) - 1);
- while (ptr != vstr && (*ptr < '0' || *ptr > '9'))
- ptr--;
- letterversion = ptr + 1;
- major = strtol(vstr, &endptr, 10);
- if (*endptr)
- minor = strtol(endptr + 1, &endptr, 10);
- if (*endptr)
- micro = strtol(endptr + 1, &endptr, 10);
- snprintf(infoversion, sizeof(infoversion), "%02ld.%02ld.%04ld%s",
- major, minor, micro, letterversion);
- }
- /*
- * load info schema and populate from features file
- */
- static void
- setup_schema(FILE *cmdfd)
- {
- char **line;
- char **lines;
- lines = readfile(info_schema_file);
- for (line = lines; *line != NULL; line++)
- {
- PG_CMD_PUTS(*line);
- free(*line);
- }
- PG_CMD_PUTS("\n\n");
- free(lines);
- PG_CMD_PRINTF("UPDATE information_schema.sql_implementation_info "
- " SET character_value = '%s' "
- " WHERE implementation_info_name = 'DBMS VERSION';\n\n",
- infoversion);
- PG_CMD_PRINTF("COPY information_schema.sql_features "
- " (feature_id, feature_name, sub_feature_id, "
- " sub_feature_name, is_supported, comments) "
- " FROM E'%s';\n\n",
- escape_quotes(features_file));
- }
- /*
- * load PL/pgSQL server-side language
- */
- static void
- load_plpgsql(FILE *cmdfd)
- {
- PG_CMD_PUTS("CREATE EXTENSION plpgsql;\n\n");
- }
- /*
- * clean everything up in template1
- */
- static void
- vacuum_db(FILE *cmdfd)
- {
- /* Run analyze before VACUUM so the statistics are frozen. */
- PG_CMD_PUTS("ANALYZE;\n\nVACUUM FREEZE;\n\n");
- }
- /*
- * copy template1 to template0
- */
- static void
- make_template0(FILE *cmdfd)
- {
- const char *const *line;
- static const char *const template0_setup[] = {
- "CREATE DATABASE template0 IS_TEMPLATE = true ALLOW_CONNECTIONS = false;\n\n",
- /*
- * We use the OID of template0 to determine datlastsysoid
- */
- "UPDATE pg_database SET datlastsysoid = "
- " (SELECT oid FROM pg_database "
- " WHERE datname = 'template0');\n\n",
- /*
- * Explicitly revoke public create-schema and create-temp-table
- * privileges in template1 and template0; else the latter would be on
- * by default
- */
- "REVOKE CREATE,TEMPORARY ON DATABASE template1 FROM public;\n\n",
- "REVOKE CREATE,TEMPORARY ON DATABASE template0 FROM public;\n\n",
- "COMMENT ON DATABASE template0 IS 'unmodifiable empty database';\n\n",
- /*
- * Finally vacuum to clean up dead rows in pg_database
- */
- "VACUUM pg_database;\n\n",
- NULL
- };
- for (line = template0_setup; *line; line++)
- PG_CMD_PUTS(*line);
- }
- /*
- * copy template1 to postgres
- */
- static void
- make_postgres(FILE *cmdfd)
- {
- const char *const *line;
- static const char *const postgres_setup[] = {
- "CREATE DATABASE postgres;\n\n",
- "COMMENT ON DATABASE postgres IS 'default administrative connection database';\n\n",
- NULL
- };
- for (line = postgres_setup; *line; line++)
- PG_CMD_PUTS(*line);
- }
- /*
- * signal handler in case we are interrupted.
- *
- * The Windows runtime docs at
- * https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/signal
- * specifically forbid a number of things being done from a signal handler,
- * including IO, memory allocation and system calls, and only allow jmpbuf
- * if you are handling SIGFPE.
- *
- * I avoided doing the forbidden things by setting a flag instead of calling
- * exit() directly.
- *
- * Also note the behaviour of Windows with SIGINT, which says this:
- * SIGINT is not supported for any Win32 application. When a CTRL+C interrupt
- * occurs, Win32 operating systems generate a new thread to specifically
- * handle that interrupt. This can cause a single-thread application, such as
- * one in UNIX, to become multithreaded and cause unexpected behavior.
- *
- * I have no idea how to handle this. (Strange they call UNIX an application!)
- * So this will need some testing on Windows.
- */
- static void
- trapsig(int signum)
- {
- /* handle systems that reset the handler, like Windows (grr) */
- pqsignal(signum, trapsig);
- caught_signal = true;
- }
- /*
- * call exit() if we got a signal, or else output "ok".
- */
- static void
- check_ok(void)
- {
- if (caught_signal)
- {
- printf(_("caught signal\n"));
- fflush(stdout);
- exit(1);
- }
- else if (output_failed)
- {
- printf(_("could not write to child process: %s\n"),
- strerror(output_errno));
- fflush(stdout);
- exit(1);
- }
- else
- {
- /* all seems well */
- printf(_("ok\n"));
- fflush(stdout);
- }
- }
- /* Hack to suppress a warning about %x from some versions of gcc */
- static inline size_t
- my_strftime(char *s, size_t max, const char *fmt, const struct tm *tm)
- {
- return strftime(s, max, fmt, tm);
- }
- /*
- * Determine likely date order from locale
- */
- static int
- locale_date_order(const char *locale)
- {
- struct tm testtime;
- char buf[128];
- char *posD;
- char *posM;
- char *posY;
- char *save;
- size_t res;
- int result;
- result = DATEORDER_MDY; /* default */
- save = setlocale(LC_TIME, NULL);
- if (!save)
- return result;
- save = pg_strdup(save);
- setlocale(LC_TIME, locale);
- memset(&testtime, 0, sizeof(testtime));
- testtime.tm_mday = 22;
- testtime.tm_mon = 10; /* November, should come out as "11" */
- testtime.tm_year = 133; /* 2033 */
- res = my_strftime(buf, sizeof(buf), "%x", &testtime);
- setlocale(LC_TIME, save);
- free(save);
- if (res == 0)
- return result;
- posM = strstr(buf, "11");
- posD = strstr(buf, "22");
- posY = strstr(buf, "33");
- if (!posM || !posD || !posY)
- return result;
- if (posY < posM && posM < posD)
- result = DATEORDER_YMD;
- else if (posD < posM)
- result = DATEORDER_DMY;
- else
- result = DATEORDER_MDY;
- return result;
- }
- /*
- * Verify that locale name is valid for the locale category.
- *
- * If successful, and canonname isn't NULL, a malloc'd copy of the locale's
- * canonical name is stored there. This is especially useful for figuring out
- * what locale name "" means (ie, the environment value). (Actually,
- * it seems that on most implementations that's the only thing it's good for;
- * we could wish that setlocale gave back a canonically spelled version of
- * the locale name, but typically it doesn't.)
- *
- * this should match the backend's check_locale() function
- */
- static void
- check_locale_name(int category, const char *locale, char **canonname)
- {
- char *save;
- char *res;
- if (canonname)
- *canonname = NULL; /* in case of failure */
- save = setlocale(category, NULL);
- if (!save)
- {
- pg_log_error("setlocale() failed");
- exit(1);
- }
- /* save may be pointing at a modifiable scratch variable, so copy it. */
- save = pg_strdup(save);
- /* for setlocale() call */
- if (!locale)
- locale = "";
- /* set the locale with setlocale, to see if it accepts it. */
- res = setlocale(category, locale);
- /* save canonical name if requested. */
- if (res && canonname)
- *canonname = pg_strdup(res);
- /* restore old value. */
- if (!setlocale(category, save))
- {
- pg_log_error("failed to restore old locale \"%s\"", save);
- exit(1);
- }
- free(save);
- /* complain if locale wasn't valid */
- if (res == NULL)
- {
- if (*locale)
- pg_log_error("invalid locale name \"%s\"", locale);
- else
- {
- /*
- * If no relevant switch was given on command line, locale is an
- * empty string, which is not too helpful to report. Presumably
- * setlocale() found something it did not like in the environment.
- * Ideally we'd report the bad environment variable, but since
- * setlocale's behavior is implementation-specific, it's hard to
- * be sure what it didn't like. Print a safe generic message.
- */
- pg_log_error("invalid locale settings; check LANG and LC_* environment variables");
- }
- exit(1);
- }
- }
- /*
- * check if the chosen encoding matches the encoding required by the locale
- *
- * this should match the similar check in the backend createdb() function
- */
- static bool
- check_locale_encoding(const char *locale, int user_enc)
- {
- int locale_enc;
- locale_enc = pg_get_encoding_from_locale(locale, true);
- /* See notes in createdb() to understand these tests */
- if (!(locale_enc == user_enc ||
- locale_enc == PG_SQL_ASCII ||
- locale_enc == -1 ||
- #ifdef WIN32
- user_enc == PG_UTF8 ||
- #endif
- user_enc == PG_SQL_ASCII))
- {
- pg_log_error("encoding mismatch");
- fprintf(stderr,
- _("The encoding you selected (%s) and the encoding that the\n"
- "selected locale uses (%s) do not match. This would lead to\n"
- "misbehavior in various character string processing functions.\n"
- "Rerun %s and either do not specify an encoding explicitly,\n"
- "or choose a matching combination.\n"),
- pg_encoding_to_char(user_enc),
- pg_encoding_to_char(locale_enc),
- progname);
- return false;
- }
- return true;
- }
- /*
- * set up the locale variables
- *
- * assumes we have called setlocale(LC_ALL, "") -- see set_pglocale_pgservice
- */
- static void
- setlocales(void)
- {
- char *canonname;
- /* set empty lc_* values to locale config if set */
- if (locale)
- {
- if (!lc_ctype)
- lc_ctype = locale;
- if (!lc_collate)
- lc_collate = locale;
- if (!lc_numeric)
- lc_numeric = locale;
- if (!lc_time)
- lc_time = locale;
- if (!lc_monetary)
- lc_monetary = locale;
- if (!lc_messages)
- lc_messages = locale;
- }
- /*
- * canonicalize locale names, and obtain any missing values from our
- * current environment
- */
- check_locale_name(LC_CTYPE, lc_ctype, &canonname);
- lc_ctype = canonname;
- check_locale_name(LC_COLLATE, lc_collate, &canonname);
- lc_collate = canonname;
- check_locale_name(LC_NUMERIC, lc_numeric, &canonname);
- lc_numeric = canonname;
- check_locale_name(LC_TIME, lc_time, &canonname);
- lc_time = canonname;
- check_locale_name(LC_MONETARY, lc_monetary, &canonname);
- lc_monetary = canonname;
- #if defined(LC_MESSAGES) && !defined(WIN32)
- check_locale_name(LC_MESSAGES, lc_messages, &canonname);
- lc_messages = canonname;
- #else
- /* when LC_MESSAGES is not available, use the LC_CTYPE setting */
- check_locale_name(LC_CTYPE, lc_messages, &canonname);
- lc_messages = canonname;
- #endif
- }
- /*
- * print help text
- */
- static void
- usage(const char *progname)
- {
- printf(_("%s initializes a PostgreSQL database cluster.\n\n"), progname);
- printf(_("Usage:\n"));
- printf(_(" %s [OPTION]... [DATADIR]\n"), progname);
- printf(_("\nOptions:\n"));
- printf(_(" -A, --auth=METHOD default authentication method for local connections\n"));
- printf(_(" --auth-host=METHOD default authentication method for local TCP/IP connections\n"));
- printf(_(" --auth-local=METHOD default authentication method for local-socket connections\n"));
- printf(_(" [-D, --pgdata=]DATADIR location for this database cluster\n"));
- printf(_(" -E, --encoding=ENCODING set default encoding for new databases\n"));
- printf(_(" -g, --allow-group-access allow group read/execute on data directory\n"));
- printf(_(" --locale=LOCALE set default locale for new databases\n"));
- printf(_(" --lc-collate=, --lc-ctype=, --lc-messages=LOCALE\n"
- " --lc-monetary=, --lc-numeric=, --lc-time=LOCALE\n"
- " set default locale in the respective category for\n"
- " new databases (default taken from environment)\n"));
- printf(_(" --no-locale equivalent to --locale=C\n"));
- printf(_(" --pwfile=FILE read password for the new superuser from file\n"));
- printf(_(" -T, --text-search-config=CFG\n"
- " default text search configuration\n"));
- printf(_(" -U, --username=NAME database superuser name\n"));
- printf(_(" -W, --pwprompt prompt for a password for the new superuser\n"));
- printf(_(" -X, --waldir=WALDIR location for the write-ahead log directory\n"));
- printf(_(" --wal-segsize=SIZE size of WAL segments, in megabytes\n"));
- printf(_("\nLess commonly used options:\n"));
- printf(_(" -d, --debug generate lots of debugging output\n"));
- printf(_(" -k, --data-checksums use data page checksums\n"));
- printf(_(" -L DIRECTORY where to find the input files\n"));
- printf(_(" -n, --no-clean do not clean up after errors\n"));
- printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
- printf(_(" -s, --show show internal settings\n"));
- printf(_(" -S, --sync-only only sync data directory\n"));
- printf(_("\nOther options:\n"));
- printf(_(" -V, --version output version information, then exit\n"));
- printf(_(" -?, --help show this help, then exit\n"));
- printf(_("\nIf the data directory is not specified, the environment variable PGDATA\n"
- "is used.\n"));
- printf(_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
- printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
- }
- static void
- check_authmethod_unspecified(const char **authmethod)
- {
- if (*authmethod == NULL)
- {
- authwarning = true;
- *authmethod = "trust";
- }
- }
- static void
- check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
- {
- const char *const *p;
- for (p = valid_methods; *p; p++)
- {
- if (strcmp(authmethod, *p) == 0)
- return;
- /* with space = param */
- if (strchr(authmethod, ' '))
- if (strncmp(authmethod, *p, (authmethod - strchr(authmethod, ' '))) == 0)
- return;
- }
- pg_log_error("invalid authentication method \"%s\" for \"%s\" connections",
- authmethod, conntype);
- exit(1);
- }
- static void
- check_need_password(const char *authmethodlocal, const char *authmethodhost)
- {
- if ((strcmp(authmethodlocal, "md5") == 0 ||
- strcmp(authmethodlocal, "password") == 0 ||
- strcmp(authmethodlocal, "scram-sha-256") == 0) &&
- (strcmp(authmethodhost, "md5") == 0 ||
- strcmp(authmethodhost, "password") == 0 ||
- strcmp(authmethodhost, "scram-sha-256") == 0) &&
- !(pwprompt || pwfilename))
- {
- pg_log_error("must specify a password for the superuser to enable %s authentication",
- (strcmp(authmethodlocal, "md5") == 0 ||
- strcmp(authmethodlocal, "password") == 0 ||
- strcmp(authmethodlocal, "scram-sha-256") == 0)
- ? authmethodlocal
- : authmethodhost);
- exit(1);
- }
- }
- void
- setup_pgdata(void)
- {
- char *pgdata_get_env,
- *pgdata_set_env;
- if (!pg_data)
- {
- pgdata_get_env = getenv("PGDATA");
- if (pgdata_get_env && strlen(pgdata_get_env))
- {
- /* PGDATA found */
- pg_data = pg_strdup(pgdata_get_env);
- }
- else
- {
- pg_log_error("no data directory specified");
- fprintf(stderr,
- _("You must identify the directory where the data for this database system\n"
- "will reside. Do this with either the invocation option -D or the\n"
- "environment variable PGDATA.\n"));
- exit(1);
- }
- }
- pgdata_native = pg_strdup(pg_data);
- canonicalize_path(pg_data);
- /*
- * we have to set PGDATA for postgres rather than pass it on the command
- * line to avoid dumb quoting problems on Windows, and we would especially
- * need quotes otherwise on Windows because paths there are most likely to
- * have embedded spaces.
- */
- pgdata_set_env = psprintf("PGDATA=%s", pg_data);
- putenv(pgdata_set_env);
- }
- void
- setup_bin_paths(const char *argv0)
- {
- int ret;
- if ((ret = find_other_exec(argv0, "postgres", PG_BACKEND_VERSIONSTR,
- backend_exec)) < 0)
- {
- char full_path[MAXPGPATH];
- if (find_my_exec(argv0, full_path) < 0)
- strlcpy(full_path, progname, sizeof(full_path));
- if (ret == -1)
- pg_log_error("The program \"postgres\" is needed by %s but was not found in the\n"
- "same directory as \"%s\".\n"
- "Check your installation.",
- progname, full_path);
- else
- pg_log_error("The program \"postgres\" was found by \"%s\"\n"
- "but was not the same version as %s.\n"
- "Check your installation.",
- full_path, progname);
- exit(1);
- }
- /* store binary directory */
- strcpy(bin_path, backend_exec);
- *last_dir_separator(bin_path) = '\0';
- canonicalize_path(bin_path);
- if (!share_path)
- {
- share_path = pg_malloc(MAXPGPATH);
- get_share_path(backend_exec, share_path);
- }
- else if (!is_absolute_path(share_path))
- {
- pg_log_error("input file location must be an absolute path");
- exit(1);
- }
- canonicalize_path(share_path);
- }
- void
- setup_locale_encoding(void)
- {
- setlocales();
- if (strcmp(lc_ctype, lc_collate) == 0 &&
- strcmp(lc_ctype, lc_time) == 0 &&
- strcmp(lc_ctype, lc_numeric) == 0 &&
- strcmp(lc_ctype, lc_monetary) == 0 &&
- strcmp(lc_ctype, lc_messages) == 0)
- printf(_("The database cluster will be initialized with locale \"%s\".\n"), lc_ctype);
- else
- {
- printf(_("The database cluster will be initialized with locales\n"
- " COLLATE: %s\n"
- " CTYPE: %s\n"
- " MESSAGES: %s\n"
- " MONETARY: %s\n"
- " NUMERIC: %s\n"
- " TIME: %s\n"),
- lc_collate,
- lc_ctype,
- lc_messages,
- lc_monetary,
- lc_numeric,
- lc_time);
- }
- if (!encoding)
- {
- int ctype_enc;
- ctype_enc = pg_get_encoding_from_locale(lc_ctype, true);
- if (ctype_enc == -1)
- {
- /* Couldn't recognize the locale's codeset */
- pg_log_error("could not find suitable encoding for locale \"%s\"",
- lc_ctype);
- fprintf(stderr, _("Rerun %s with the -E option.\n"), progname);
- fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
- progname);
- exit(1);
- }
- else if (!pg_valid_server_encoding_id(ctype_enc))
- {
- /*
- * We recognized it, but it's not a legal server encoding. On
- * Windows, UTF-8 works with any locale, so we can fall back to
- * UTF-8.
- */
- #ifdef WIN32
- encodingid = PG_UTF8;
- printf(_("Encoding \"%s\" implied by locale is not allowed as a server-side encoding.\n"
- "The default database encoding will be set to \"%s\" instead.\n"),
- pg_encoding_to_char(ctype_enc),
- pg_encoding_to_char(encodingid));
- #else
- pg_log_error("locale \"%s\" requires unsupported encoding \"%s\"",
- lc_ctype, pg_encoding_to_char(ctype_enc));
- fprintf(stderr,
- _("Encoding \"%s\" is not allowed as a server-side encoding.\n"
- "Rerun %s with a different locale selection.\n"),
- pg_encoding_to_char(ctype_enc), progname);
- exit(1);
- #endif
- }
- else
- {
- encodingid = ctype_enc;
- printf(_("The default database encoding has accordingly been set to \"%s\".\n"),
- pg_encoding_to_char(encodingid));
- }
- }
- else
- encodingid = get_encoding_id(encoding);
- if (!check_locale_encoding(lc_ctype, encodingid) ||
- !check_locale_encoding(lc_collate, encodingid))
- exit(1); /* check_locale_encoding printed the error */
- }
- void
- setup_data_file_paths(void)
- {
- set_input(&bki_file, "postgres.bki");
- set_input(&hba_file, "pg_hba.conf.sample");
- set_input(&ident_file, "pg_ident.conf.sample");
- set_input(&conf_file, "postgresql.conf.sample");
- set_input(&dictionary_file, "snowball_create.sql");
- set_input(&info_schema_file, "information_schema.sql");
- set_input(&features_file, "sql_features.txt");
- set_input(&system_views_file, "system_views.sql");
- if (show_setting || debug)
- {
- fprintf(stderr,
- "VERSION=%s\n"
- "PGDATA=%s\nshare_path=%s\nPGPATH=%s\n"
- "POSTGRES_SUPERUSERNAME=%s\nPOSTGRES_BKI=%s\n"
- "POSTGRESQL_CONF_SAMPLE=%s\n"
- "PG_HBA_SAMPLE=%s\nPG_IDENT_SAMPLE=%s\n",
- PG_VERSION,
- pg_data, share_path, bin_path,
- username, bki_file,
- conf_file,
- hba_file, ident_file);
- if (show_setting)
- exit(0);
- }
- check_input(bki_file);
- check_input(hba_file);
- check_input(ident_file);
- check_input(conf_file);
- check_input(dictionary_file);
- check_input(info_schema_file);
- check_input(features_file);
- check_input(system_views_file);
- }
- void
- setup_text_search(void)
- {
- if (!default_text_search_config)
- {
- default_text_search_config = find_matching_ts_config(lc_ctype);
- if (!default_text_search_config)
- {
- pg_log_info("could not find suitable text search configuration for locale \"%s\"",
- lc_ctype);
- default_text_search_config = "simple";
- }
- }
- else
- {
- const char *checkmatch = find_matching_ts_config(lc_ctype);
- if (checkmatch == NULL)
- {
- pg_log_warning("suitable text search configuration for locale \"%s\" is unknown",
- lc_ctype);
- }
- else if (strcmp(checkmatch, default_text_search_config) != 0)
- {
- pg_log_warning("specified text search configuration \"%s\" might not match locale \"%s\"",
- default_text_search_config, lc_ctype);
- }
- }
- printf(_("The default text search configuration will be set to \"%s\".\n"),
- default_text_search_config);
- }
- void
- setup_signals(void)
- {
- /* some of these are not valid on Windows */
- #ifdef SIGHUP
- pqsignal(SIGHUP, trapsig);
- #endif
- #ifdef SIGINT
- pqsignal(SIGINT, trapsig);
- #endif
- #ifdef SIGQUIT
- pqsignal(SIGQUIT, trapsig);
- #endif
- #ifdef SIGTERM
- pqsignal(SIGTERM, trapsig);
- #endif
- /* Ignore SIGPIPE when writing to backend, so we can clean up */
- #ifdef SIGPIPE
- pqsignal(SIGPIPE, SIG_IGN);
- #endif
- /* Prevent SIGSYS so we can probe for kernel calls that might not work */
- #ifdef SIGSYS
- pqsignal(SIGSYS, SIG_IGN);
- #endif
- }
- void
- create_data_directory(void)
- {
- int ret;
- switch ((ret = pg_check_dir(pg_data)))
- {
- case 0:
- /* PGDATA not there, must create it */
- printf(_("creating directory %s ... "),
- pg_data);
- fflush(stdout);
- if (pg_mkdir_p(pg_data, pg_dir_create_mode) != 0)
- {
- pg_log_error("could not create directory \"%s\": %m", pg_data);
- exit(1);
- }
- else
- check_ok();
- made_new_pgdata = true;
- break;
- case 1:
- /* Present but empty, fix permissions and use it */
- printf(_("fixing permissions on existing directory %s ... "),
- pg_data);
- fflush(stdout);
- if (chmod(pg_data, pg_dir_create_mode) != 0)
- {
- pg_log_error("could not change permissions of directory \"%s\": %m",
- pg_data);
- exit(1);
- }
- else
- check_ok();
- found_existing_pgdata = true;
- break;
- case 2:
- case 3:
- case 4:
- /* Present and not empty */
- pg_log_error("directory \"%s\" exists but is not empty", pg_data);
- if (ret != 4)
- warn_on_mount_point(ret);
- else
- fprintf(stderr,
- _("If you want to create a new database system, either remove or empty\n"
- "the directory \"%s\" or run %s\n"
- "with an argument other than \"%s\".\n"),
- pg_data, progname, pg_data);
- exit(1); /* no further message needed */
- default:
- /* Trouble accessing directory */
- pg_log_error("could not access directory \"%s\": %m", pg_data);
- exit(1);
- }
- }
- /* Create WAL directory, and symlink if required */
- void
- create_xlog_or_symlink(void)
- {
- char *subdirloc;
- /* form name of the place for the subdirectory or symlink */
- subdirloc = psprintf("%s/pg_wal", pg_data);
- if (xlog_dir)
- {
- int ret;
- /* clean up xlog directory name, check it's absolute */
- canonicalize_path(xlog_dir);
- if (!is_absolute_path(xlog_dir))
- {
- pg_log_error("WAL directory location must be an absolute path");
- exit(1);
- }
- /* check if the specified xlog directory exists/is empty */
- switch ((ret = pg_check_dir(xlog_dir)))
- {
- case 0:
- /* xlog directory not there, must create it */
- printf(_("creating directory %s ... "),
- xlog_dir);
- fflush(stdout);
- if (pg_mkdir_p(xlog_dir, pg_dir_create_mode) != 0)
- {
- pg_log_error("could not create directory \"%s\": %m",
- xlog_dir);
- exit(1);
- }
- else
- check_ok();
- made_new_xlogdir = true;
- break;
- case 1:
- /* Present but empty, fix permissions and use it */
- printf(_("fixing permissions on existing directory %s ... "),
- xlog_dir);
- fflush(stdout);
- if (chmod(xlog_dir, pg_dir_create_mode) != 0)
- {
- pg_log_error("could not change permissions of directory \"%s\": %m",
- xlog_dir);
- exit(1);
- }
- else
- check_ok();
- found_existing_xlogdir = true;
- break;
- case 2:
- case 3:
- case 4:
- /* Present and not empty */
- pg_log_error("directory \"%s\" exists but is not empty", xlog_dir);
- if (ret != 4)
- warn_on_mount_point(ret);
- else
- fprintf(stderr,
- _("If you want to store the WAL there, either remove or empty the directory\n"
- "\"%s\".\n"),
- xlog_dir);
- exit(1);
- default:
- /* Trouble accessing directory */
- pg_log_error("could not access directory \"%s\": %m", xlog_dir);
- exit(1);
- }
- #ifdef HAVE_SYMLINK
- if (symlink(xlog_dir, subdirloc) != 0)
- {
- pg_log_error("could not create symbolic link \"%s\": %m",
- subdirloc);
- exit(1);
- }
- #else
- pg_log_error("symlinks are not supported on this platform");
- exit(1);
- #endif
- }
- else
- {
- /* Without -X option, just make the subdirectory normally */
- if (mkdir(subdirloc, pg_dir_create_mode) < 0)
- {
- pg_log_error("could not create directory \"%s\": %m",
- subdirloc);
- exit(1);
- }
- }
- free(subdirloc);
- }
- void
- warn_on_mount_point(int error)
- {
- if (error == 2)
- fprintf(stderr,
- _("It contains a dot-prefixed/invisible file, perhaps due to it being a mount point.\n"));
- else if (error == 3)
- fprintf(stderr,
- _("It contains a lost+found directory, perhaps due to it being a mount point.\n"));
- fprintf(stderr,
- _("Using a mount point directly as the data directory is not recommended.\n"
- "Create a subdirectory under the mount point.\n"));
- }
- void
- initialize_data_directory(void)
- {
- PG_CMD_DECL;
- int i;
- setup_signals();
- /*
- * Set mask based on requested PGDATA permissions. pg_mode_mask, and
- * friends like pg_dir_create_mode, are set to owner-only by default and
- * then updated if -g is passed in by calling SetDataDirectoryCreatePerm()
- * when parsing our options (see above).
- */
- umask(pg_mode_mask);
- create_data_directory();
- create_xlog_or_symlink();
- /* Create required subdirectories (other than pg_wal) */
- printf(_("creating subdirectories ... "));
- fflush(stdout);
- for (i = 0; i < lengthof(subdirs); i++)
- {
- char *path;
- path = psprintf("%s/%s", pg_data, subdirs[i]);
- /*
- * The parent directory already exists, so we only need mkdir() not
- * pg_mkdir_p() here, which avoids some failure modes; cf bug #13853.
- */
- if (mkdir(path, pg_dir_create_mode) < 0)
- {
- pg_log_error("could not create directory \"%s\": %m", path);
- exit(1);
- }
- free(path);
- }
- check_ok();
- /* Top level PG_VERSION is checked by bootstrapper, so make it first */
- write_version_file(NULL);
- /* Select suitable configuration settings */
- set_null_conf();
- test_config_settings();
- /* Now create all the text config files */
- setup_config();
- /* Bootstrap template1 */
- bootstrap_template1();
- /*
- * Make the per-database PG_VERSION for template1 only after init'ing it
- */
- write_version_file("base/1");
- /*
- * Create the stuff we don't need to use bootstrap mode for, using a
- * backend running in simple standalone mode.
- */
- fputs(_("performing post-bootstrap initialization ... "), stdout);
- fflush(stdout);
- snprintf(cmd, sizeof(cmd),
- "\"%s\" %s template1 >%s",
- backend_exec, backend_options,
- DEVNULL);
- PG_CMD_OPEN;
- setup_auth(cmdfd);
- setup_depend(cmdfd);
- /*
- * Note that no objects created after setup_depend() will be "pinned".
- * They are all droppable at the whim of the DBA.
- */
- setup_sysviews(cmdfd);
- setup_description(cmdfd);
- setup_collation(cmdfd);
- setup_dictionary(cmdfd);
- setup_privileges(cmdfd);
- setup_schema(cmdfd);
- load_plpgsql(cmdfd);
- vacuum_db(cmdfd);
- make_template0(cmdfd);
- make_postgres(cmdfd);
- PG_CMD_CLOSE;
- check_ok();
- }
- int
- main(int argc, char *argv[])
- {
- static struct option long_options[] = {
- {"pgdata", required_argument, NULL, 'D'},
- {"encoding", required_argument, NULL, 'E'},
- {"locale", required_argument, NULL, 1},
- {"lc-collate", required_argument, NULL, 2},
- {"lc-ctype", required_argument, NULL, 3},
- {"lc-monetary", required_argument, NULL, 4},
- {"lc-numeric", required_argument, NULL, 5},
- {"lc-time", required_argument, NULL, 6},
- {"lc-messages", required_argument, NULL, 7},
- {"no-locale", no_argument, NULL, 8},
- {"text-search-config", required_argument, NULL, 'T'},
- {"auth", required_argument, NULL, 'A'},
- {"auth-local", required_argument, NULL, 10},
- {"auth-host", required_argument, NULL, 11},
- {"pwprompt", no_argument, NULL, 'W'},
- {"pwfile", required_argument, NULL, 9},
- {"username", required_argument, NULL, 'U'},
- {"help", no_argument, NULL, '?'},
- {"version", no_argument, NULL, 'V'},
- {"debug", no_argument, NULL, 'd'},
- {"show", no_argument, NULL, 's'},
- {"noclean", no_argument, NULL, 'n'}, /* for backwards compatibility */
- {"no-clean", no_argument, NULL, 'n'},
- {"nosync", no_argument, NULL, 'N'}, /* for backwards compatibility */
- {"no-sync", no_argument, NULL, 'N'},
- {"sync-only", no_argument, NULL, 'S'},
- {"waldir", required_argument, NULL, 'X'},
- {"wal-segsize", required_argument, NULL, 12},
- {"data-checksums", no_argument, NULL, 'k'},
- {"allow-group-access", no_argument, NULL, 'g'},
- {NULL, 0, NULL, 0}
- };
- /*
- * options with no short version return a low integer, the rest return
- * their short version value
- */
- int c;
- int option_index;
- char *effective_user;
- PQExpBuffer start_db_cmd;
- char pg_ctl_path[MAXPGPATH];
- /*
- * Ensure that buffering behavior of stdout matches what it is in
- * interactive usage (at least on most platforms). This prevents
- * unexpected output ordering when, eg, output is redirected to a file.
- * POSIX says we must do this before any other usage of these files.
- */
- setvbuf(stdout, NULL, PG_IOLBF, 0);
- pg_logging_init(argv[0]);
- progname = get_progname(argv[0]);
- set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("initdb"));
- if (argc > 1)
- {
- if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
- {
- usage(progname);
- exit(0);
- }
- if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
- {
- puts("initdb (PostgreSQL) " PG_VERSION);
- exit(0);
- }
- }
- /* process command-line options */
- while ((c = getopt_long(argc, argv, "dD:E:kL:nNU:WA:sST:X:g", long_options, &option_index)) != -1)
- {
- switch (c)
- {
- case 'A':
- authmethodlocal = authmethodhost = pg_strdup(optarg);
- /*
- * When ident is specified, use peer for local connections.
- * Mirrored, when peer is specified, use ident for TCP/IP
- * connections.
- */
- if (strcmp(authmethodhost, "ident") == 0)
- authmethodlocal = "peer";
- else if (strcmp(authmethodlocal, "peer") == 0)
- authmethodhost = "ident";
- break;
- case 10:
- authmethodlocal = pg_strdup(optarg);
- break;
- case 11:
- authmethodhost = pg_strdup(optarg);
- break;
- case 'D':
- pg_data = pg_strdup(optarg);
- break;
- case 'E':
- encoding = pg_strdup(optarg);
- break;
- case 'W':
- pwprompt = true;
- break;
- case 'U':
- username = pg_strdup(optarg);
- break;
- case 'd':
- debug = true;
- printf(_("Running in debug mode.\n"));
- break;
- case 'n':
- noclean = true;
- printf(_("Running in no-clean mode. Mistakes will not be cleaned up.\n"));
- break;
- case 'N':
- do_sync = false;
- break;
- case 'S':
- sync_only = true;
- break;
- case 'k':
- data_checksums = true;
- break;
- case 'L':
- share_path = pg_strdup(optarg);
- break;
- case 1:
- locale = pg_strdup(optarg);
- break;
- case 2:
- lc_collate = pg_strdup(optarg);
- break;
- case 3:
- lc_ctype = pg_strdup(optarg);
- break;
- case 4:
- lc_monetary = pg_strdup(optarg);
- break;
- case 5:
- lc_numeric = pg_strdup(optarg);
- break;
- case 6:
- lc_time = pg_strdup(optarg);
- break;
- case 7:
- lc_messages = pg_strdup(optarg);
- break;
- case 8:
- locale = "C";
- break;
- case 9:
- pwfilename = pg_strdup(optarg);
- break;
- case 's':
- show_setting = true;
- break;
- case 'T':
- default_text_search_config = pg_strdup(optarg);
- break;
- case 'X':
- xlog_dir = pg_strdup(optarg);
- break;
- case 12:
- str_wal_segment_size_mb = pg_strdup(optarg);
- break;
- case 'g':
- SetDataDirectoryCreatePerm(PG_DIR_MODE_GROUP);
- break;
- default:
- /* getopt_long already emitted a complaint */
- fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
- progname);
- exit(1);
- }
- }
- /*
- * Non-option argument specifies data directory as long as it wasn't
- * already specified with -D / --pgdata
- */
- if (optind < argc && !pg_data)
- {
- pg_data = pg_strdup(argv[optind]);
- optind++;
- }
- if (optind < argc)
- {
- pg_log_error("too many command-line arguments (first is \"%s\")",
- argv[optind]);
- fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
- progname);
- exit(1);
- }
- atexit(cleanup_directories_atexit);
- /* If we only need to fsync, just do it and exit */
- if (sync_only)
- {
- setup_pgdata();
- /* must check that directory is readable */
- if (pg_check_dir(pg_data) <= 0)
- {
- pg_log_error("could not access directory \"%s\": %m", pg_data);
- exit(1);
- }
- fputs(_("syncing data to disk ... "), stdout);
- fflush(stdout);
- fsync_pgdata(pg_data, PG_VERSION_NUM);
- check_ok();
- return 0;
- }
- if (pwprompt && pwfilename)
- {
- pg_log_error("password prompt and password file cannot be specified together");
- exit(1);
- }
- check_authmethod_unspecified(&authmethodlocal);
- check_authmethod_unspecified(&authmethodhost);
- check_authmethod_valid(authmethodlocal, auth_methods_local, "local");
- check_authmethod_valid(authmethodhost, auth_methods_host, "host");
- check_need_password(authmethodlocal, authmethodhost);
- /* set wal segment size */
- if (str_wal_segment_size_mb == NULL)
- wal_segment_size_mb = (DEFAULT_XLOG_SEG_SIZE) / (1024 * 1024);
- else
- {
- char *endptr;
- /* check that the argument is a number */
- wal_segment_size_mb = strtol(str_wal_segment_size_mb, &endptr, 10);
- /* verify that wal segment size is valid */
- if (endptr == str_wal_segment_size_mb || *endptr != '\0')
- {
- pg_log_error("argument of --wal-segsize must be a number");
- exit(1);
- }
- if (!IsValidWalSegSize(wal_segment_size_mb * 1024 * 1024))
- {
- pg_log_error("argument of --wal-segsize must be a power of 2 between 1 and 1024");
- exit(1);
- }
- }
- get_restricted_token();
- setup_pgdata();
- setup_bin_paths(argv[0]);
- effective_user = get_id();
- if (!username)
- username = effective_user;
- if (strncmp(username, "pg_", 3) == 0)
- {
- pg_log_error("superuser name \"%s\" is disallowed; role names cannot begin with \"pg_\"", username);
- exit(1);
- }
- printf(_("The files belonging to this database system will be owned "
- "by user \"%s\".\n"
- "This user must also own the server process.\n\n"),
- effective_user);
- set_info_version();
- setup_data_file_paths();
- setup_locale_encoding();
- setup_text_search();
- printf("\n");
- if (data_checksums)
- printf(_("Data page checksums are enabled.\n"));
- else
- printf(_("Data page checksums are disabled.\n"));
- if (pwprompt || pwfilename)
- get_su_pwd();
- printf("\n");
- initialize_data_directory();
- if (do_sync)
- {
- fputs(_("syncing data to disk ... "), stdout);
- fflush(stdout);
- fsync_pgdata(pg_data, PG_VERSION_NUM);
- check_ok();
- }
- else
- printf(_("\nSync to disk skipped.\nThe data directory might become corrupt if the operating system crashes.\n"));
- if (authwarning)
- {
- printf("\n");
- pg_log_warning("enabling \"trust\" authentication for local connections");
- fprintf(stderr, _("You can change this by editing pg_hba.conf or using the option -A, or\n"
- "--auth-local and --auth-host, the next time you run initdb.\n"));
- }
- /*
- * Build up a shell command to tell the user how to start the server
- */
- start_db_cmd = createPQExpBuffer();
- /* Get directory specification used to start initdb ... */
- strlcpy(pg_ctl_path, argv[0], sizeof(pg_ctl_path));
- canonicalize_path(pg_ctl_path);
- get_parent_directory(pg_ctl_path);
- /* ... and tag on pg_ctl instead */
- join_path_components(pg_ctl_path, pg_ctl_path, "pg_ctl");
- /* path to pg_ctl, properly quoted */
- appendShellString(start_db_cmd, pg_ctl_path);
- /* add -D switch, with properly quoted data directory */
- appendPQExpBufferStr(start_db_cmd, " -D ");
- appendShellString(start_db_cmd, pgdata_native);
- /* add suggested -l switch and "start" command */
- /* translator: This is a placeholder in a shell command. */
- appendPQExpBuffer(start_db_cmd, " -l %s start", _("logfile"));
- printf(_("\nSuccess. You can now start the database server using:\n\n"
- " %s\n\n"),
- start_db_cmd->data);
- destroyPQExpBuffer(start_db_cmd);
- success = true;
- return 0;
- }