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postgres/src/bin/initdb/initdb.c
Tom Lane e0f05cd5ba Improve some ancient, crufty code in bootstrap + initdb. 
At some point back in the last century, somebody felt that reading
all of pg_type twice was cheaper, or at least easier, than using
repalloc() to resize the Typ[] array dynamically.  That seems like an
entirely wacko proposition, so rewrite the code to do it the other
way.  (To add insult to injury, there were two not-quite-identical
copies of said code.)

initdb.c's readfile() function had the same disease of preferring
to do double the I/O to avoid resizing its output array.  Here,
we can make things easier by using the just-invented pg_get_line()
function to handle reading individual lines without a predetermined
notion of how long they are.

On my machine, it's difficult to detect any net change in the
overall runtime of initdb from these changes; but they should
help on slower buildfarm machines (especially since a buildfarm
cycle involves a lot of initdb's these days).

My attention was drawn to these places by scan-build complaints,
but on inspection they needed a lot more work than just suppressing
dead stores :-(
2020-09-05 16:20:04 -04:00

3294 lines
84 KiB
C
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/*-------------------------------------------------------------------------
*
* 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/string.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)
{
char **result;
FILE *infile;
int maxlines;
int n;
char *ln;
if ((infile = fopen(path, "r")) == NULL)
{
pg_log_error("could not open file \"%s\" for reading: %m", path);
exit(1);
}
maxlines = 1024;
result = (char **) pg_malloc(maxlines * sizeof(char *));
n = 0;
while ((ln = pg_get_line(infile)) != NULL)
{
/* make sure there will be room for a trailing NULL pointer */
if (n >= maxlines - 1)
{
maxlines *= 2;
result = (char **) pg_realloc(result, maxlines * sizeof(char *));
}
result[n++] = ln;
}
result[n] = NULL;
fclose(infile);
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"},
{"basque", "eu"},
{"basque", "Basque"},
{"catalan", "ca"},
{"catalan", "Catalan"},
{"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"},
{"hindi", "hi"},
{"hindi", "Hindi"},
{"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
/*
* Change password_encryption setting to md5 if md5 was chosen as an
* authentication method, unless scram-sha-256 was also chosen.
*/
if ((strcmp(authmethodlocal, "md5") == 0 &&
strcmp(authmethodhost, "scram-sha-256") != 0) ||
(strcmp(authmethodhost, "md5") == 0 &&
strcmp(authmethodlocal, "scram-sha-256") != 0))
{
conflines = replace_token(conflines,
"#password_encryption = scram-sha-256",
"password_encryption = md5");
}
/*
* 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;
if (pwprompt)
{
/*
* Read password from terminal
*/
char *pwd2;
printf("\n");
fflush(stdout);
pwd1 = simple_prompt("Enter new superuser password: ", false);
pwd2 = simple_prompt("Enter it again: ", false);
if (strcmp(pwd1, pwd2) != 0)
{
fprintf(stderr, _("Passwords didn't match.\n"));
exit(1);
}
free(pwd2);
}
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");
if (!pwf)
{
pg_log_error("could not open file \"%s\" for reading: %m",
pwfilename);
exit(1);
}
pwd1 = pg_get_line(pwf);
if (!pwd1)
{
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);
(void) pg_strip_crlf(pwd1);
}
superuser_password = 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 password authentication");
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 \"%s\" is needed by %s but was not found in the\n"
"same directory as \"%s\".\n"
"Check your installation.",
"postgres", progname, full_path);
else
pg_log_error("The program \"%s\" was found by \"%s\"\n"
"but was not the same version as %s.\n"
"Check your installation.",
"postgres", 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;
}
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