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configfile.c
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/*
* config.c - parse repmgr.conf and other configuration-related functionality
*
* Copyright (c) 2ndQuadrant, 2010-2017
*/
#include <sys/stat.h> /* for stat() */
#include "repmgr.h"
#include "configfile.h"
#include "log.h"
const static char *_progname = NULL;
static char config_file_path[MAXPGPATH];
static bool config_file_provided = false;
bool config_file_found = false;
static void _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *warning_list);
static bool parse_bool(const char *s,
const char *config_item,
ItemList *error_list);
static void _parse_line(char *buf, char *name, char *value);
static void parse_event_notifications_list(t_configuration_options *options, const char *arg);
static void tablespace_list_append(t_configuration_options *options, const char *arg);
static char *trim(char *s);
static void exit_with_config_file_errors(ItemList *config_errors, ItemList *config_warnings, bool terse);
void
set_progname(const char *argv0)
{
_progname = get_progname(argv0);
}
const char *
progname(void)
{
return _progname;
}
void
load_config(const char *config_file, bool verbose, bool terse, t_configuration_options *options, char *argv0)
{
struct stat stat_config;
/*
* If a configuration file was provided, check it exists, otherwise
* emit an error and terminate. We assume that if a user explicitly
* provides a configuration file, they'll want to make sure it's
* used and not fall back to any of the defaults.
*/
if (config_file != NULL && config_file[0] != '\0')
{
strncpy(config_file_path, config_file, MAXPGPATH);
canonicalize_path(config_file_path);
if (stat(config_file_path, &stat_config) != 0)
{
log_error(_("provided configuration file \"%s\" not found: %s"),
config_file,
strerror(errno)
);
exit(ERR_BAD_CONFIG);
}
if (verbose == true)
{
log_notice(_("using configuration file \"%s\""), config_file);
}
config_file_provided = true;
config_file_found = true;
}
/*
* If no configuration file was provided, attempt to find a default file
* in this order:
* - current directory
* - /etc/repmgr.conf
* - default sysconfdir
*
* here we just check for the existence of the file; parse_config()
* will handle read errors etc.
*
* XXX modify this section so package maintainers can provide a patch
* specifying location of a distribution-specific configuration file
*/
if (config_file_provided == false)
{
char my_exec_path[MAXPGPATH];
char sysconf_etc_path[MAXPGPATH];
/* 1. "./repmgr.conf" */
if (verbose == true)
{
log_notice(_("looking for configuration file in current directory"));
}
maxpath_snprintf(config_file_path, "./%s", CONFIG_FILE_NAME);
canonicalize_path(config_file_path);
if (stat(config_file_path, &stat_config) == 0)
{
config_file_found = true;
goto end_search;
}
/* 2. "/etc/repmgr.conf" */
if (verbose == true)
{
log_notice(_("looking for configuration file in /etc"));
}
maxpath_snprintf(config_file_path, "/etc/%s", CONFIG_FILE_NAME);
if (stat(config_file_path, &stat_config) == 0)
{
config_file_found = true;
goto end_search;
}
/* 3. default sysconfdir */
if (find_my_exec(argv0, my_exec_path) < 0)
{
log_error(_("%s: could not find own program executable"), argv0);
exit(EXIT_FAILURE);
}
get_etc_path(my_exec_path, sysconf_etc_path);
if (verbose == true)
{
log_notice(_("looking for configuration file in %s"), sysconf_etc_path);
}
maxpath_snprintf(config_file_path, "%s/%s", sysconf_etc_path, CONFIG_FILE_NAME);
if (stat(config_file_path, &stat_config) == 0)
{
config_file_found = true;
goto end_search;
}
end_search:
if (config_file_found == true)
{
if (verbose == true)
{
log_notice(_("configuration file found at: %s"), config_file_path);
}
}
else
{
if (verbose == true)
{
log_notice(_("no configuration file provided or found"));
}
}
}
parse_config(options, terse);
return;
}
void
parse_config(t_configuration_options *options, bool terse)
{
/* Collate configuration file errors here for friendlier reporting */
static ItemList config_errors = { NULL, NULL };
static ItemList config_warnings = { NULL, NULL };
_parse_config(options, &config_errors, &config_warnings);
/* errors found - exit after printing details, and any warnings */
if (config_errors.head != NULL)
{
exit_with_config_file_errors(&config_errors, &config_warnings, terse);
}
if (terse == false && config_warnings.head != NULL)
{
log_warning(_("the following problems were found in the configuration file:"));
print_item_list(&config_warnings);
}
return;
}
static void
_parse_config(t_configuration_options *options, ItemList *error_list, ItemList *warning_list)
{
FILE *fp;
char *s,
buf[MAXLINELENGTH];
char name[MAXLEN];
char value[MAXLEN];
bool node_id_found = false;
/* Initialize configuration options with sensible defaults */
/* node information */
options->node_id = UNKNOWN_NODE_ID;
memset(options->node_name, 0, sizeof(options->node_name));
memset(options->conninfo, 0, sizeof(options->conninfo));
memset(options->data_directory, 0, sizeof(options->data_directory));
memset(options->pg_bindir, 0, sizeof(options->pg_bindir));
options->replication_type = REPLICATION_TYPE_PHYSICAL;
/*
* log settings
*
* note: the default for "log_level" is set in log.c and does not need
* to be initialised here
*/
memset(options->log_facility, 0, sizeof(options->log_facility));
memset(options->log_file, 0, sizeof(options->log_file));
options->log_status_interval = DEFAULT_LOG_STATUS_INTERVAL;
/* standby clone settings
* ----------------------- */
options->use_replication_slots = false;
memset(options->rsync_options, 0, sizeof(options->rsync_options));
memset(options->ssh_options, 0, sizeof(options->ssh_options));
strncpy(options->ssh_options, "-q", sizeof(options->ssh_options));
memset(options->replication_user, 0, sizeof(options->replication_user));
memset(options->pg_basebackup_options, 0, sizeof(options->pg_basebackup_options));
memset(options->restore_command, 0, sizeof(options->restore_command));
options->tablespace_mapping.head = NULL;
options->tablespace_mapping.tail = NULL;
/* repmgrd settings
* ---------------- */
options->failover_mode = FAILOVER_MANUAL;
options->priority = DEFAULT_PRIORITY;
memset(options->location, 0, sizeof(options->location));
strncpy(options->location, DEFAULT_LOCATION, MAXLEN);
memset(options->promote_command, 0, sizeof(options->promote_command));
memset(options->follow_command, 0, sizeof(options->follow_command));
options->monitor_interval_secs = DEFAULT_MONITORING_INTERVAL;
/* default to 6 reconnection attempts at intervals of 10 seconds */
options->reconnect_attempts = DEFAULT_RECONNECTION_ATTEMPTS;
options->reconnect_interval = DEFAULT_RECONNECTION_INTERVAL;
options->monitoring_history = false; /* new in 4.0, replaces --monitoring-history */
options->degraded_monitoring_timeout = -1;
options->async_query_timeout = DEFAULT_ASYNC_QUERY_TIMEOUT;
options->primary_notification_timeout = DEFAULT_PRIMARY_NOTIFICATION_TIMEOUT;
options->primary_follow_timeout = DEFAULT_PRIMARY_FOLLOW_TIMEOUT;
/* BDR settings
* ------------ */
options->bdr_local_monitoring_only = false;
options->bdr_recovery_timeout = DEFAULT_BDR_RECOVERY_TIMEOUT;
/* service settings
* ---------------- */
memset(options->pg_ctl_options, 0, sizeof(options->pg_ctl_options));
memset(options->service_stop_command, 0, sizeof(options->service_stop_command));
memset(options->service_start_command, 0, sizeof(options->service_start_command));
memset(options->service_restart_command, 0, sizeof(options->service_restart_command));
memset(options->service_reload_command, 0, sizeof(options->service_reload_command));
memset(options->service_promote_command, 0, sizeof(options->service_promote_command));
/* event notification settings
* --------------------------- */
memset(options->event_notification_command, 0, sizeof(options->event_notification_command));
options->event_notifications.head = NULL;
options->event_notifications.tail = NULL;
/* barman settings */
/* --------------- */
memset(options->barman_server, 0, sizeof(options->barman_server));
memset(options->barman_config, 0, sizeof(options->barman_config));
/* undocumented test settings */
/* -------------------------- */
options->promote_delay = 0;
/*
* If no configuration file available (user didn't specify and none found
* in the default locations), return with default values
*/
if (config_file_found == false)
{
log_verbose(LOG_NOTICE,
_("no configuration file provided and no default file found - "
"continuing with default values"));
return;
}
fp = fopen(config_file_path, "r");
/*
* A configuration file has been found, either provided by the user
* or found in one of the default locations. If we can't open it,
* fail with an error.
*/
if (fp == NULL)
{
if (config_file_provided)
{
log_error(_("unable to open provided configuration file \"%s\"; terminating"),
config_file_path);
}
else
{
log_error(_("unable to open default configuration file \"%s\"; terminating"),
config_file_path);
}
exit(ERR_BAD_CONFIG);
}
/* Read file */
while ((s = fgets(buf, sizeof buf, fp)) != NULL)
{
bool known_parameter = true;
/* Parse name/value pair from line */
_parse_line(buf, name, value);
/* Skip blank lines */
if (!strlen(name))
continue;
/* Skip comments */
if (name[0] == '#')
continue;
/* Copy into correct entry in parameters struct */
if (strcmp(name, "node_id") == 0)
{
options->node_id = repmgr_atoi(value, name, error_list, 1);
node_id_found = true;
}
else if (strcmp(name, "node_name") == 0)
strncpy(options->node_name, value, MAXLEN);
else if (strcmp(name, "conninfo") == 0)
strncpy(options->conninfo, value, MAXLEN);
else if (strcmp(name, "data_directory") == 0)
strncpy(options->data_directory, value, MAXPGPATH);
else if (strcmp(name, "replication_user") == 0)
{
if (strlen(value) < NAMEDATALEN)
strncpy(options->replication_user, value, NAMEDATALEN);
else
item_list_append(error_list,
_( "value for \"replication_user\" must contain fewer than " STR(NAMEDATALEN) " characters"));
}
else if (strcmp(name, "pg_bindir") == 0)
strncpy(options->pg_bindir, value, MAXPGPATH);
else if (strcmp(name, "replication_type") == 0)
{
if (strcmp(value, "physical") == 0)
options->replication_type = REPLICATION_TYPE_PHYSICAL;
else if (strcmp(value, "bdr") == 0)
options->replication_type = REPLICATION_TYPE_BDR;
else
item_list_append(error_list, _("value for \"replication_type\" must be \"physical\" or \"bdr\""));
}
/* log settings */
else if (strcmp(name, "log_file") == 0)
strncpy(options->log_file, value, MAXLEN);
else if (strcmp(name, "log_level") == 0)
strncpy(options->log_level, value, MAXLEN);
else if (strcmp(name, "log_facility") == 0)
strncpy(options->log_facility, value, MAXLEN);
else if (strcmp(name, "log_status_interval") == 0)
options->log_status_interval = repmgr_atoi(value, name, error_list, 0);
/* standby clone settings */
else if (strcmp(name, "use_replication_slots") == 0)
options->use_replication_slots = parse_bool(value, name, error_list);
else if (strcmp(name, "rsync_options") == 0)
strncpy(options->rsync_options, value, MAXLEN);
else if (strcmp(name, "ssh_options") == 0)
strncpy(options->ssh_options, value, MAXLEN);
else if (strcmp(name, "pg_basebackup_options") == 0)
strncpy(options->pg_basebackup_options, value, MAXLEN);
else if (strcmp(name, "tablespace_mapping") == 0)
tablespace_list_append(options, value);
else if (strcmp(name, "restore_command") == 0)
strncpy(options->restore_command, value, MAXLEN);
/* node check settings */
else if (strcmp(name, "archiver_lag_warning") == 0)
options->archiver_lag_warning = repmgr_atoi(value, name, error_list, 1);
else if (strcmp(name, "archiver_lag_critcial") == 0)
options->archiver_lag_critical = repmgr_atoi(value, name, error_list, 1);
else if (strcmp(name, "replication_lag_warning") == 0)
options->replication_lag_warning = repmgr_atoi(value, name, error_list, 1);
else if (strcmp(name, "replication_lag_critical") == 0)
options->replication_lag_critical = repmgr_atoi(value, name, error_list, 1);
/* repmgrd settings */
else if (strcmp(name, "failover_mode") == 0)
{
if (strcmp(value, "manual") == 0)
{
options->failover_mode = FAILOVER_MANUAL;
}
else if (strcmp(value, "automatic") == 0)
{
options->failover_mode = FAILOVER_AUTOMATIC;
}
else
{
item_list_append(error_list,
_("value for \"failover\" must be \"automatic\" or \"manual\"\n"));
}
}
else if (strcmp(name, "priority") == 0)
options->priority = repmgr_atoi(value, name, error_list, 0);
else if (strcmp(name, "location") == 0)
strncpy(options->location, value, MAXLEN);
else if (strcmp(name, "promote_command") == 0)
strncpy(options->promote_command, value, MAXLEN);
else if (strcmp(name, "follow_command") == 0)
strncpy(options->follow_command, value, MAXLEN);
else if (strcmp(name, "reconnect_attempts") == 0)
options->reconnect_attempts = repmgr_atoi(value, name, error_list, 0);
else if (strcmp(name, "reconnect_interval") == 0)
options->reconnect_interval = repmgr_atoi(value, name, error_list, 0);
else if (strcmp(name, "monitor_interval_secs") == 0)
options->monitor_interval_secs = repmgr_atoi(value, name, error_list, 1);
else if (strcmp(name, "monitoring_history") == 0)
options->monitoring_history = parse_bool(value, name, error_list);
else if (strcmp(name, "degraded_monitoring_timeout") == 0)
options->degraded_monitoring_timeout = repmgr_atoi(value, name, error_list, 1);
else if (strcmp(name, "async_query_timeout") == 0)
options->async_query_timeout = repmgr_atoi(value, name, error_list, 0);
else if (strcmp(name, "primary_notification_timeout") == 0)
options->primary_notification_timeout = repmgr_atoi(value, name, error_list, 0);
else if (strcmp(name, "primary_follow_timeout") == 0)
options->primary_follow_timeout = repmgr_atoi(value, name, error_list, 0);
/* BDR settings */
else if (strcmp(name, "bdr_local_monitoring_only") == 0)
options->bdr_local_monitoring_only = parse_bool(value, name, error_list);
else if (strcmp(name, "bdr_recovery_timeout") == 0)
options->bdr_recovery_timeout = repmgr_atoi(value, name, error_list, 0);
/* service settings */
else if (strcmp(name, "pg_ctl_options") == 0)
strncpy(options->pg_ctl_options, value, MAXLEN);
else if (strcmp(name, "service_stop_command") == 0)
strncpy(options->service_stop_command, value, MAXLEN);
else if (strcmp(name, "service_start_command") == 0)
strncpy(options->service_start_command, value, MAXLEN);
else if (strcmp(name, "service_restart_command") == 0)
strncpy(options->service_restart_command, value, MAXLEN);
else if (strcmp(name, "service_reload_command") == 0)
strncpy(options->service_reload_command, value, MAXLEN);
else if (strcmp(name, "service_promote_command") == 0)
strncpy(options->service_promote_command, value, MAXLEN);
/* event notification settings */
else if (strcmp(name, "event_notification_command") == 0)
strncpy(options->event_notification_command, value, MAXLEN);
else if (strcmp(name, "event_notifications") == 0)
parse_event_notifications_list(options, value);
/* barman settings */
else if (strcmp(name, "barman_host") == 0)
strncpy(options->barman_host, value, MAXLEN);
else if (strcmp(name, "barman_server") == 0)
strncpy(options->barman_server, value, MAXLEN);
else if (strcmp(name, "barman_config") == 0)
strncpy(options->barman_config, value, MAXLEN);
/* undocumented settings for testing */
else if (strcmp(name, "promote_delay") == 0)
options->promote_delay = repmgr_atoi(value, name, error_list, 1);
/* Following parameters have been deprecated or renamed from 3.x - issue a warning */
else if (strcmp(name, "cluster") == 0)
{
item_list_append(warning_list,
_("parameter \"cluster\" is deprecated and will be ignored"));
known_parameter = false;
}
else if (strcmp(name, "failover") == 0)
{
item_list_append(warning_list,
_("parameter \"failover\" has been renamed to \"failover_mode\""));
known_parameter = false;
}
else if (strcmp(name, "node") == 0)
{
item_list_append(warning_list,
_("parameter \"node\" has been renamed to \"node_id\""));
known_parameter = false;
}
else if (strcmp(name, "upstream_node") == 0)
{
item_list_append(warning_list,
_("parameter \"upstream_node\" has been removed; use \"--upstream-node-id\" when cloning a standby"));
known_parameter = false;
}
else if (strcmp(name, "loglevel") == 0)
{
item_list_append(warning_list,
_("parameter \"loglevel\" has been renamed to \"log_level\""));
known_parameter = false;
}
else if (strcmp(name, "logfacility") == 0)
{
item_list_append(warning_list,
_("parameter \"logfacility\" has been renamed to \"log_facility\""));
known_parameter = false;
}
else if (strcmp(name, "logfile") == 0)
{
item_list_append(warning_list,
_("parameter \"logfile\" has been renamed to \"log_file\""));
known_parameter = false;
}
else if (strcmp(name, "master_reponse_timeout") == 0)
{
item_list_append(warning_list,
_("parameter \"master_reponse_timeout\" has been removed; use \"async_query_timeout\" instead"));
known_parameter = false;
}
else if (strcmp(name, "master_reponse_timeout") == 0)
{
item_list_append(warning_list,
_("parameter \"retry_promote_interval_secs\" has been removed; use \"primary_notification_timeout\" instead"));
known_parameter = false;
}
else
{
known_parameter = false;
log_warning(_("%s/%s: unknown name/value pair provided; ignoring"), name, value);
}
/*
* Raise an error if a known parameter is provided with an empty value.
* Currently there's no reason why empty parameters are needed; if
* we want to accept those, we'd need to add stricter default checking,
* as currently e.g. an empty `node` value will be converted to '0'.
*/
if (known_parameter == true && !strlen(value)) {
char error_message_buf[MAXLEN] = "";
maxlen_snprintf(error_message_buf,
_("\"%s\": no value provided"),
name);
item_list_append(error_list, error_message_buf);
}
}
/* check required parameters */
if (node_id_found == false)
{
item_list_append(error_list, _("\"node_id\": required parameter was not found"));
}
if (!strlen(options->node_name))
{
item_list_append(error_list, _("\"node_name\": required parameter was not found"));
}
if (!strlen(options->data_directory))
{
item_list_append(error_list, _("\"data_directory\": required parameter was not found"));
}
if (!strlen(options->conninfo))
{
item_list_append(error_list, _("\"conninfo\": required parameter was not found"));
}
else
{
/* Sanity check the provided conninfo string
*
* NOTE: PQconninfoParse() verifies the string format and checks for valid options
* but does not sanity check values
*/
PQconninfoOption *conninfo_options;
char *conninfo_errmsg = NULL;
conninfo_options = PQconninfoParse(options->conninfo, &conninfo_errmsg);
if (conninfo_options == NULL)
{
char error_message_buf[MAXLEN] = "";
snprintf(error_message_buf,
MAXLEN,
_("\"conninfo\": %s (provided: \"%s\")"),
conninfo_errmsg,
options->conninfo);
item_list_append(error_list, error_message_buf);
}
PQconninfoFree(conninfo_options);
}
/* add warning about changed "barman_" parameter meanings */
if ((options->barman_host[0] == '\0' && options->barman_server[0] != '\0') ||
(options->barman_host[0] != '\0' && options->barman_server[0] == '\0'))
{
item_list_append(error_list,
_("use \"barman_host\" for the hostname of the Barman server"));
item_list_append(error_list,
_("use \"barman_server\" for the name of the [server] section in the Barman configururation file"));
}
/* other sanity checks */
if (options->archiver_lag_warning >= options->archiver_lag_critical)
{
item_list_append(error_list,
_("\archiver_lag_critical\" must be greater than \"archiver_lag_warning\""));
}
if( options->replication_lag_warning >= options->replication_lag_critical)
{
item_list_append(error_list,
_("\replication_lag_critical\" must be greater than \"replication_lag_warning\""));
}
}
void
_parse_line(char *buf, char *name, char *value)
{
int i = 0;
int j = 0;
/*
* Extract parameter name, if present
*/
for (; i < MAXLEN; ++i)
{
if (buf[i] == '=')
break;
switch(buf[i])
{
/* Ignore whitespace */
case ' ':
case '\n':
case '\r':
case '\t':
continue;
default:
name[j++] = buf[i];
}
}
name[j] = '\0';
/*
* Ignore any whitespace following the '=' sign
*/
for (; i < MAXLEN; ++i)
{
if (buf[i+1] == ' ')
continue;
if (buf[i+1] == '\t')
continue;
break;
}
/*
* Extract parameter value
*/
j = 0;
for (++i; i < MAXLEN; ++i)
if (buf[i] == '\'')
continue;
else if (buf[i] == '#')
break;
else if (buf[i] != '\n')
value[j++] = buf[i];
else
break;
value[j] = '\0';
trim(value);
}
static char *
trim(char *s)
{
/* Initialize start, end pointers */
char *s1 = s,
*s2 = &s[strlen(s) - 1];
/* If string is empty, no action needed */
if (s2 < s1)
return s;
/* Trim and delimit right side */
while ((isspace(*s2)) && (s2 >= s1))
--s2;
*(s2 + 1) = '\0';
/* Trim left side */
while ((isspace(*s1)) && (s1 < s2))
++s1;
/* Copy finished string */
memmove(s, s1, s2 - s1);
s[s2 - s1 + 1] = '\0';
return s;
}
bool
reload_config(t_configuration_options *orig_options)
{
return true;
}
/* TODO: don't emit warnings if --terse and no errors */
static void
exit_with_config_file_errors(ItemList *config_errors, ItemList *config_warnings, bool terse)
{
log_error(_("following errors were found in the configuration file:"));
print_item_list(config_errors);
if (terse == false && config_warnings->head != NULL)
{
puts("");
log_warning(_("the following problems were also found in the configuration file:"));
print_item_list(config_warnings);
}
exit(ERR_BAD_CONFIG);
}
void
exit_with_cli_errors(ItemList *error_list)
{
fprintf(stderr, _("The following command line errors were encountered:\n"));
print_item_list(error_list);
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname());
exit(ERR_BAD_CONFIG);
}
void
print_item_list(ItemList *item_list)
{
ItemListCell *cell;
for (cell = item_list->head; cell; cell = cell->next)
{
fprintf(stderr, " %s\n", cell->string);
}
}
/*
* Convert provided string to an integer using strtol;
* on error, if a callback is provided, pass the error message to that,
* otherwise exit
*/
int
repmgr_atoi(const char *value, const char *config_item, ItemList *error_list, int minval)
{
char *endptr;
long longval = 0;
PQExpBufferData errors;
initPQExpBuffer(&errors);
/* It's possible that some versions of strtol() don't treat an empty
* string as an error.
*/
if (*value == '\0')
{
/* don't log here - empty values will be caught later */
return 0;
}
else
{
errno = 0;
longval = strtol(value, &endptr, 10);
if (value == endptr || errno)
{
appendPQExpBuffer(&errors,
_("\"%s\": invalid value (provided: \"%s\")"),
config_item, value);
}
else if ((int32)longval < longval)
{
appendPQExpBuffer(&errors,
_("\"%s\": must be a positive signed 32 bit integer, i.e. 2147483647 or less (provided: \"%s\")"),
config_item,
value);
}
else if ((int32)longval < minval)
/* Disallow negative values for most parameters */
{
appendPQExpBuffer(&errors,
_("\"%s\": must be %i or greater (provided: \"%s\")"),
config_item,
minval,
value);
}
}
/* Error message buffer is set */
if (errors.data[0] != '\0')
{
if (error_list == NULL)
{
log_error("%s", errors.data);
termPQExpBuffer(&errors);
exit(ERR_BAD_CONFIG);
}
item_list_append(error_list, errors.data);
termPQExpBuffer(&errors);
}
return (int32) longval;
}
/*
* Interpret a parameter value as a boolean. Currently accepts:
*
* - true/false
* - 1/0
* - on/off
* - yes/no
* Returns 'false' if unable to determine the booleanness of the value
* and adds an entry to the error list, which will result in the program
* erroring out before it proceeds to do anything.
*
* TODO: accept "any unambiguous prefix of one of these" as per postgresql.conf:
*
* https://www.postgresql.org/docs/current/static/config-setting.html
*/
static bool
parse_bool(const char *s, const char *config_item, ItemList *error_list)
{
PQExpBufferData errors;
if (strcasecmp(s, "0") == 0)
return false;
if (strcasecmp(s, "1") == 0)
return true;
if (strcasecmp(s, "false") == 0)
return false;
if (strcasecmp(s, "true") == 0)
return true;
if (strcasecmp(s, "off") == 0)
return false;
if (strcasecmp(s, "on") == 0)
return true;
if (strcasecmp(s, "no") == 0)
return false;
if (strcasecmp(s, "yes") == 0)
return true;
initPQExpBuffer(&errors);
appendPQExpBuffer(&errors,
"\"%s\": unable to interpret '%s' as a boolean value",
config_item, s);
item_list_append(error_list, errors.data);
termPQExpBuffer(&errors);
return false;
}
/*
* Split argument into old_dir and new_dir and append to tablespace mapping
* list.
*
* Adapted from pg_basebackup.c
*/
static void
tablespace_list_append(t_configuration_options *options, const char *arg)
{
TablespaceListCell *cell;
char *dst;
char *dst_ptr;
const char *arg_ptr;
cell = (TablespaceListCell *) pg_malloc0(sizeof(TablespaceListCell));
if (cell == NULL)
{
log_error(_("unable to allocate memory; terminating"));
exit(ERR_BAD_CONFIG);
}
dst_ptr = dst = cell->old_dir;
for (arg_ptr = arg; *arg_ptr; arg_ptr++)
{
if (dst_ptr - dst >= MAXPGPATH)
{
log_error(_("directory name too long"));
exit(ERR_BAD_CONFIG);
}
if (*arg_ptr == '\\' && *(arg_ptr + 1) == '=')
; /* skip backslash escaping = */
else if (*arg_ptr == '=' && (arg_ptr == arg || *(arg_ptr - 1) != '\\'))
{
if (*cell->new_dir)
{
log_error(_("multiple \"=\" signs in tablespace mapping"));
exit(ERR_BAD_CONFIG);
}
else
{
dst = dst_ptr = cell->new_dir;
}
}
else
*dst_ptr++ = *arg_ptr;
}
if (!*cell->old_dir || !*cell->new_dir)
{
log_error(_("invalid tablespace mapping format \"%s\", must be \"OLDDIR=NEWDIR\""),
arg);
exit(ERR_BAD_CONFIG);
}
canonicalize_path(cell->old_dir);
canonicalize_path(cell->new_dir);
if (options->tablespace_mapping.tail)
options->tablespace_mapping.tail->next = cell;
else
options->tablespace_mapping.head = cell;
options->tablespace_mapping.tail = cell;
}
/*
* parse_event_notifications_list()
*
*
*/
static void
parse_event_notifications_list(t_configuration_options *options, const char *arg)
{
const char *arg_ptr;
char event_type_buf[MAXLEN] = "";
char *dst_ptr = event_type_buf;
for (arg_ptr = arg; arg_ptr <= (arg + strlen(arg)); arg_ptr++)
{
/* ignore whitespace */
if (*arg_ptr == ' ' || *arg_ptr == '\t')
{
continue;
}
/*
* comma (or end-of-string) should mark the end of an event type -
* just as long as there was something preceding it
*/
if ((*arg_ptr == ',' || *arg_ptr == '\0') && event_type_buf[0] != '\0')
{
EventNotificationListCell *cell;
cell = (EventNotificationListCell *) pg_malloc0(sizeof(EventNotificationListCell));
if (cell == NULL)
{
log_error(_("unable to allocate memory; terminating"));