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|
/*++
/* NAME
/* mail_params 3
/* SUMMARY
/* global mail configuration parameters
/* SYNOPSIS
/* #include <mail_params.h>
/*
/* char *var_myhostname;
/* char *var_mydomain;
/* char *var_myorigin;
/* char *var_mydest;
/* char *var_relayhost;
/* char *var_transit_origin;
/* char *var_transit_dest;
/* char *var_mail_name;
/* int var_helpful_warnings;
/* char *var_syslog_name;
/* char *var_mail_owner;
/* uid_t var_owner_uid;
/* gid_t var_owner_gid;
/* char *var_sgid_group;
/* gid_t var_sgid_gid;
/* char *var_default_privs;
/* uid_t var_default_uid;
/* gid_t var_default_gid;
/* char *var_config_dir;
/* char *var_program_dir;
/* char *var_daemon_dir;
/* char *var_command_dir;
/* char *var_queue_dir;
/* int var_use_limit;
/* int var_idle_limit;
/* int var_bundle_rcpt;
/* char *var_procname;
/* int var_pid;
/* int var_ipc_timeout;
/* char *var_pid_dir;
/* int var_dont_remove;
/* char *var_inet_interfaces;
/* char *var_proxy_interfaces;
/* char *var_mynetworks;
/* char *var_double_bounce_sender;
/* int var_line_limit;
/* char *var_alias_db_map;
/* int var_message_limit;
/* char *var_mail_release;
/* char *var_mail_version;
/* int var_ipc_idle_limit;
/* char *var_db_type;
/* char *var_hash_queue_names;
/* int var_hash_queue_depth;
/* int var_trigger_timeout;
/* char *var_rcpt_delim;
/* int var_fork_tries;
/* int var_fork_delay;
/* int var_flock_tries;
/* int var_flock_delay;
/* int var_flock_stale;
/* int var_disable_dns;
/* int var_soft_bounce;
/* time_t var_starttime;
/* int var_ownreq_special;
/* int var_daemon_timeout;
/* char *var_syslog_facility;
/* char *var_relay_domains;
/* char *var_fflush_domains;
/* char *var_mynetworks_style;
/* char *var_verp_delims;
/* char *var_verp_filter;
/* char *var_par_dom_match;
/* char *var_config_dirs;
/*
/* char *var_import_environ;
/* char *var_export_environ;
/* char *var_debug_peer_list;
/* int var_debug_peer_level;
/* int var_in_flow_delay;
/* int var_fault_inj_code;
/* char *var_bounce_service;
/* char *var_cleanup_service;
/* char *var_defer_service;
/* char *var_pickup_service;
/* char *var_queue_service;
/* char *var_rewrite_service;
/* char *var_showq_service;
/* char *var_error_service;
/* char *var_flush_service;
/* int var_db_create_buf;
/* int var_db_read_buf;
/* int var_mime_maxdepth;
/* int var_mime_bound_len;
/* int var_header_limit;
/* int var_token_limit;
/* int var_disable_mime_input;
/* int var_disable_mime_oconv;
/* int var_strict_8bitmime;
/* int var_strict_7bit_hdrs;
/* int var_strict_8bit_body;
/* int var_strict_encoding;
/*
/* void mail_params_init()
/* DESCRIPTION
/* This module (actually the associated include file) define the names
/* and defaults of all mail configuration parameters.
/*
/* mail_params_init() initializes the built-in parameters listed above.
/* These parameters are relied upon by library routines, so they are
/* initialized globally so as to avoid hard-to-find errors due to
/* missing initialization. This routine must be called early, at
/* least before entering a chroot jail.
/* DIAGNOSTICS
/* Fatal errors: out of memory; null system or domain name.
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*--*/
/* System library. */
#include <sys_defs.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <grp.h>
#include <time.h>
#ifdef STRCASECMP_IN_STRINGS_H
#include <strings.h>
#endif
/* Utility library. */
#include <msg.h>
#include <msg_syslog.h>
#include <get_hostname.h>
#include <valid_hostname.h>
#include <stringops.h>
#include <safe.h>
#ifdef HAS_DB
#include <dict_db.h>
#endif
/* Global library. */
#include "mynetworks.h"
#include "mail_conf.h"
#include "mail_version.h"
#include "mail_proto.h"
#include "verp_sender.h"
#include "mail_params.h"
/*
* Special configuration variables.
*/
char *var_myhostname;
char *var_mydomain;
char *var_myorigin;
char *var_mydest;
char *var_relayhost;
char *var_transit_origin;
char *var_transit_dest;
char *var_mail_name;
int var_helpful_warnings;
char *var_syslog_name;
char *var_mail_owner;
uid_t var_owner_uid;
gid_t var_owner_gid;
char *var_sgid_group;
gid_t var_sgid_gid;
char *var_default_privs;
uid_t var_default_uid;
gid_t var_default_gid;
char *var_config_dir;
char *var_program_dir;
char *var_daemon_dir;
char *var_command_dir;
char *var_queue_dir;
int var_use_limit;
int var_idle_limit;
int var_bundle_rcpt;
char *var_procname;
int var_pid;
int var_ipc_timeout;
char *var_pid_dir;
int var_dont_remove;
char *var_inet_interfaces;
char *var_proxy_interfaces;
char *var_mynetworks;
char *var_double_bounce_sender;
int var_line_limit;
char *var_alias_db_map;
int var_message_limit;
char *var_mail_release;
char *var_mail_version;
int var_ipc_idle_limit;
char *var_db_type;
char *var_hash_queue_names;
int var_hash_queue_depth;
int var_trigger_timeout;
char *var_rcpt_delim;
int var_fork_tries;
int var_fork_delay;
int var_flock_tries;
int var_flock_delay;
int var_flock_stale;
int var_disable_dns;
int var_soft_bounce;
time_t var_starttime;
int var_ownreq_special;
int var_daemon_timeout;
char *var_syslog_facility;
char *var_relay_domains;
char *var_fflush_domains;
char *var_mynetworks_style;
char *var_verp_delims;
char *var_verp_filter;
int var_in_flow_delay;
char *var_par_dom_match;
char *var_config_dirs;
char *var_import_environ;
char *var_export_environ;
char *var_debug_peer_list;
int var_debug_peer_level;
int var_fault_inj_code;
char *var_bounce_service;
char *var_cleanup_service;
char *var_defer_service;
char *var_pickup_service;
char *var_queue_service;
char *var_rewrite_service;
char *var_showq_service;
char *var_error_service;
char *var_flush_service;
int var_db_create_buf;
int var_db_read_buf;
int var_mime_maxdepth;
int var_mime_bound_len;
int var_header_limit;
int var_token_limit;
int var_disable_mime_input;
int var_disable_mime_oconv;
int var_strict_8bitmime;
int var_strict_7bit_hdrs;
int var_strict_8bit_body;
int var_strict_encoding;
/* check_myhostname - lookup hostname and validate */
static const char *check_myhostname(void)
{
static const char *name;
const char *dot;
const char *domain;
/*
* Use cached result.
*/
if (name)
return (name);
/*
* If the local machine name is not in FQDN form, try to append the
* contents of $mydomain.
*/
name = get_hostname();
if ((dot = strchr(name, '.')) == 0) {
if ((domain = mail_conf_lookup_eval(VAR_MYDOMAIN)) == 0)
msg_warn("My hostname %s is not a fully qualified name - set %s or %s in %s/%s",
name, VAR_MYHOSTNAME, VAR_MYDOMAIN,
var_config_dir, MAIN_CONF_FILE);
else
name = concatenate(name, ".", domain, (char *) 0);
}
return (name);
}
/* check_mydomainname - lookup domain name and validate */
static const char *check_mydomainname(void)
{
char *dot;
/*
* Use the hostname when it is not a FQDN ("foo"), or when the hostname
* actually is a domain name ("foo.com").
*/
if ((dot = strchr(var_myhostname, '.')) == 0 || strchr(dot + 1, '.') == 0)
return (var_myhostname);
return (dot + 1);
}
/* check_default_privs - lookup default user attributes and validate */
static void check_default_privs(void)
{
struct passwd *pwd;
if ((pwd = getpwnam(var_default_privs)) == 0)
msg_fatal("file %s/%s: parameter %s: unknown user name value: %s",
var_config_dir, MAIN_CONF_FILE,
VAR_DEFAULT_PRIVS, var_default_privs);
if ((var_default_uid = pwd->pw_uid) == 0)
msg_fatal("file %s/%s: parameter %s: user %s has privileged user ID",
var_config_dir, MAIN_CONF_FILE,
VAR_DEFAULT_PRIVS, var_default_privs);
if ((var_default_gid = pwd->pw_gid) == 0)
msg_fatal("file %s/%s: parameter %s: user %s has privileged group ID",
var_config_dir, MAIN_CONF_FILE,
VAR_DEFAULT_PRIVS, var_default_privs);
}
/* check_mail_owner - lookup owner user attributes and validate */
static void check_mail_owner(void)
{
struct passwd *pwd;
if ((pwd = getpwnam(var_mail_owner)) == 0)
msg_fatal("file %s/%s: parameter %s: unknown user name value: %s",
var_config_dir, MAIN_CONF_FILE,
VAR_MAIL_OWNER, var_mail_owner);
if ((var_owner_uid = pwd->pw_uid) == 0)
msg_fatal("file %s/%s: parameter %s: user %s has privileged user ID",
var_config_dir, MAIN_CONF_FILE,
VAR_MAIL_OWNER, var_mail_owner);
if ((var_owner_gid = pwd->pw_gid) == 0)
msg_fatal("file %s/%s: parameter %s: user %s has privileged group ID",
var_config_dir, MAIN_CONF_FILE,
VAR_MAIL_OWNER, var_mail_owner);
/*
* This detects only some forms of sharing. Enumerating the entire
* password file name space could be expensive. The purpose of this code
* is to discourage user ID sharing by developers and package
* maintainers.
*/
if ((pwd = getpwuid(var_owner_uid)) != 0
&& strcmp(pwd->pw_name, var_mail_owner) != 0)
msg_fatal("file %s/%s: parameter %s: user %s has same user ID as %s",
var_config_dir, MAIN_CONF_FILE,
VAR_MAIL_OWNER, var_mail_owner, pwd->pw_name);
}
/* check_sgid_group - lookup setgid group attributes and validate */
static void check_sgid_group(void)
{
struct group *grp;
if ((grp = getgrnam(var_sgid_group)) == 0)
msg_fatal("file %s/%s: parameter %s: unknown group name: %s",
var_config_dir, MAIN_CONF_FILE,
VAR_SGID_GROUP, var_sgid_group);
if ((var_sgid_gid = grp->gr_gid) == 0)
msg_fatal("file %s/%s: parameter %s: group %s has privileged group ID",
var_config_dir, MAIN_CONF_FILE,
VAR_SGID_GROUP, var_sgid_group);
/*
* This detects only some forms of sharing. Enumerating the entire group
* file name space could be expensive. The purpose of this code is to
* discourage group ID sharing by developers and package maintainers.
*/
if ((grp = getgrgid(var_sgid_gid)) != 0
&& strcmp(grp->gr_name, var_sgid_group) != 0)
msg_fatal("file %s/%s: parameter %s: group %s has same group ID as %s",
var_config_dir, MAIN_CONF_FILE,
VAR_SGID_GROUP, var_sgid_group, grp->gr_name);
}
/* check_overlap - disallow UID or GID sharing */
static void check_overlap(void)
{
if (strcmp(var_default_privs, var_mail_owner) == 0)
msg_fatal("file %s/%s: parameters %s and %s specify the same user %s",
var_config_dir, MAIN_CONF_FILE,
VAR_DEFAULT_PRIVS, VAR_MAIL_OWNER,
var_default_privs);
if (var_default_uid == var_owner_uid)
msg_fatal("file %s/%s: parameters %s and %s: users %s and %s have the same user ID: %ld",
var_config_dir, MAIN_CONF_FILE,
VAR_DEFAULT_PRIVS, VAR_MAIL_OWNER,
var_default_privs, var_mail_owner,
(long) var_owner_uid);
if (var_default_gid == var_owner_gid)
msg_fatal("file %s/%s: parameters %s and %s: users %s and %s have the same group ID: %ld",
var_config_dir, MAIN_CONF_FILE,
VAR_DEFAULT_PRIVS, VAR_MAIL_OWNER,
var_default_privs, var_mail_owner,
(long) var_owner_gid);
if (var_default_gid == var_sgid_gid)
msg_fatal("file %s/%s: parameters %s and %s: user %s and group %s have the same group ID: %ld",
var_config_dir, MAIN_CONF_FILE,
VAR_DEFAULT_PRIVS, VAR_SGID_GROUP,
var_default_privs, var_sgid_group,
(long) var_sgid_gid);
if (var_owner_gid == var_sgid_gid)
msg_fatal("file %s/%s: parameters %s and %s: user %s and group %s have the same group ID: %ld",
var_config_dir, MAIN_CONF_FILE,
VAR_MAIL_OWNER, VAR_SGID_GROUP,
var_mail_owner, var_sgid_group,
(long) var_sgid_gid);
}
/* mail_params_init - configure built-in parameters */
void mail_params_init()
{
static CONFIG_STR_TABLE first_str_defaults[] = {
VAR_SYSLOG_FACILITY, DEF_SYSLOG_FACILITY, &var_syslog_facility, 1, 0,
0,
};
static CONFIG_STR_FN_TABLE function_str_defaults[] = {
VAR_MYHOSTNAME, check_myhostname, &var_myhostname, 1, 0,
VAR_MYDOMAIN, check_mydomainname, &var_mydomain, 1, 0,
0,
};
static CONFIG_STR_TABLE other_str_defaults[] = {
VAR_MAIL_NAME, DEF_MAIL_NAME, &var_mail_name, 1, 0,
VAR_SYSLOG_NAME, DEF_SYSLOG_NAME, &var_syslog_name, 1, 0,
VAR_MAIL_OWNER, DEF_MAIL_OWNER, &var_mail_owner, 1, 0,
VAR_SGID_GROUP, DEF_SGID_GROUP, &var_sgid_group, 1, 0,
VAR_MYDEST, DEF_MYDEST, &var_mydest, 0, 0,
VAR_MYORIGIN, DEF_MYORIGIN, &var_myorigin, 1, 0,
VAR_RELAYHOST, DEF_RELAYHOST, &var_relayhost, 0, 0,
VAR_PROGRAM_DIR, DEF_PROGRAM_DIR, &var_program_dir, 1, 0,
VAR_DAEMON_DIR, DEF_DAEMON_DIR, &var_daemon_dir, 1, 0,
VAR_COMMAND_DIR, DEF_COMMAND_DIR, &var_command_dir, 1, 0,
VAR_QUEUE_DIR, DEF_QUEUE_DIR, &var_queue_dir, 1, 0,
VAR_PID_DIR, DEF_PID_DIR, &var_pid_dir, 1, 0,
VAR_INET_INTERFACES, DEF_INET_INTERFACES, &var_inet_interfaces, 1, 0,
VAR_PROXY_INTERFACES, DEF_PROXY_INTERFACES, &var_proxy_interfaces, 0, 0,
VAR_DOUBLE_BOUNCE, DEF_DOUBLE_BOUNCE, &var_double_bounce_sender, 1, 0,
VAR_DEFAULT_PRIVS, DEF_DEFAULT_PRIVS, &var_default_privs, 1, 0,
VAR_ALIAS_DB_MAP, DEF_ALIAS_DB_MAP, &var_alias_db_map, 0, 0,
VAR_MAIL_RELEASE, DEF_MAIL_RELEASE, &var_mail_release, 1, 0,
VAR_MAIL_VERSION, DEF_MAIL_VERSION, &var_mail_version, 1, 0,
VAR_DB_TYPE, DEF_DB_TYPE, &var_db_type, 1, 0,
VAR_HASH_QUEUE_NAMES, DEF_HASH_QUEUE_NAMES, &var_hash_queue_names, 1, 0,
VAR_RCPT_DELIM, DEF_RCPT_DELIM, &var_rcpt_delim, 0, 1,
VAR_RELAY_DOMAINS, DEF_RELAY_DOMAINS, &var_relay_domains, 0, 0,
VAR_FFLUSH_DOMAINS, DEF_FFLUSH_DOMAINS, &var_fflush_domains, 0, 0,
VAR_EXPORT_ENVIRON, DEF_EXPORT_ENVIRON, &var_export_environ, 0, 0,
VAR_IMPORT_ENVIRON, DEF_IMPORT_ENVIRON, &var_import_environ, 0, 0,
VAR_MYNETWORKS_STYLE, DEF_MYNETWORKS_STYLE, &var_mynetworks_style, 1, 0,
VAR_DEBUG_PEER_LIST, DEF_DEBUG_PEER_LIST, &var_debug_peer_list, 0, 0,
VAR_VERP_DELIMS, DEF_VERP_DELIMS, &var_verp_delims, 2, 2,
VAR_VERP_FILTER, DEF_VERP_FILTER, &var_verp_filter, 1, 0,
VAR_PAR_DOM_MATCH, DEF_PAR_DOM_MATCH, &var_par_dom_match, 0, 0,
VAR_CONFIG_DIRS, DEF_CONFIG_DIRS, &var_config_dirs, 0, 0,
VAR_BOUNCE_SERVICE, DEF_BOUNCE_SERVICE, &var_bounce_service, 1, 0,
VAR_CLEANUP_SERVICE, DEF_CLEANUP_SERVICE, &var_cleanup_service, 1, 0,
VAR_DEFER_SERVICE, DEF_DEFER_SERVICE, &var_defer_service, 1, 0,
VAR_PICKUP_SERVICE, DEF_PICKUP_SERVICE, &var_pickup_service, 1, 0,
VAR_QUEUE_SERVICE, DEF_QUEUE_SERVICE, &var_queue_service, 1, 0,
VAR_REWRITE_SERVICE, DEF_REWRITE_SERVICE, &var_rewrite_service, 1, 0,
VAR_SHOWQ_SERVICE, DEF_SHOWQ_SERVICE, &var_showq_service, 1, 0,
VAR_ERROR_SERVICE, DEF_ERROR_SERVICE, &var_error_service, 1, 0,
VAR_FLUSH_SERVICE, DEF_FLUSH_SERVICE, &var_flush_service, 1, 0,
0,
};
static CONFIG_STR_FN_TABLE function_str_defaults_2[] = {
VAR_MYNETWORKS, mynetworks, &var_mynetworks, 1, 0,
0,
};
static CONFIG_INT_TABLE other_int_defaults[] = {
VAR_MAX_USE, DEF_MAX_USE, &var_use_limit, 1, 0,
VAR_DONT_REMOVE, DEF_DONT_REMOVE, &var_dont_remove, 0, 0,
VAR_LINE_LIMIT, DEF_LINE_LIMIT, &var_line_limit, 512, 0,
VAR_MESSAGE_LIMIT, DEF_MESSAGE_LIMIT, &var_message_limit, 0, 0,
VAR_HASH_QUEUE_DEPTH, DEF_HASH_QUEUE_DEPTH, &var_hash_queue_depth, 1, 0,
VAR_FORK_TRIES, DEF_FORK_TRIES, &var_fork_tries, 1, 0,
VAR_FLOCK_TRIES, DEF_FLOCK_TRIES, &var_flock_tries, 1, 0,
VAR_DEBUG_PEER_LEVEL, DEF_DEBUG_PEER_LEVEL, &var_debug_peer_level, 1, 0,
VAR_FAULT_INJ_CODE, DEF_FAULT_INJ_CODE, &var_fault_inj_code, 0, 0,
VAR_DB_CREATE_BUF, DEF_DB_CREATE_BUF, &var_db_create_buf, 1, 0,
VAR_DB_READ_BUF, DEF_DB_READ_BUF, &var_db_read_buf, 1, 0,
VAR_HEADER_LIMIT, DEF_HEADER_LIMIT, &var_header_limit, 1, 0,
VAR_TOKEN_LIMIT, DEF_TOKEN_LIMIT, &var_token_limit, 1, 0,
VAR_MIME_MAXDEPTH, DEF_MIME_MAXDEPTH, &var_mime_maxdepth, 1, 0,
VAR_MIME_BOUND_LEN, DEF_MIME_BOUND_LEN, &var_mime_bound_len, 1, 0,
0,
};
static CONFIG_TIME_TABLE time_defaults[] = {
VAR_MAX_IDLE, DEF_MAX_IDLE, &var_idle_limit, 1, 0,
VAR_IPC_TIMEOUT, DEF_IPC_TIMEOUT, &var_ipc_timeout, 1, 0,
VAR_IPC_IDLE, DEF_IPC_IDLE, &var_ipc_idle_limit, 1, 0,
VAR_TRIGGER_TIMEOUT, DEF_TRIGGER_TIMEOUT, &var_trigger_timeout, 1, 0,
VAR_FORK_DELAY, DEF_FORK_DELAY, &var_fork_delay, 1, 0,
VAR_FLOCK_DELAY, DEF_FLOCK_DELAY, &var_flock_delay, 1, 0,
VAR_FLOCK_STALE, DEF_FLOCK_STALE, &var_flock_stale, 1, 0,
VAR_DAEMON_TIMEOUT, DEF_DAEMON_TIMEOUT, &var_daemon_timeout, 1, 0,
VAR_IN_FLOW_DELAY, DEF_IN_FLOW_DELAY, &var_in_flow_delay, 0, 10,
0,
};
static CONFIG_BOOL_TABLE bool_defaults[] = {
VAR_DISABLE_DNS, DEF_DISABLE_DNS, &var_disable_dns,
VAR_SOFT_BOUNCE, DEF_SOFT_BOUNCE, &var_soft_bounce,
VAR_OWNREQ_SPECIAL, DEF_OWNREQ_SPECIAL, &var_ownreq_special,
VAR_STRICT_8BITMIME, DEF_STRICT_8BITMIME, &var_strict_8bitmime,
VAR_STRICT_7BIT_HDRS, DEF_STRICT_7BIT_HDRS, &var_strict_7bit_hdrs,
VAR_STRICT_8BIT_BODY, DEF_STRICT_8BIT_BODY, &var_strict_8bit_body,
VAR_STRICT_ENCODING, DEF_STRICT_ENCODING, &var_strict_encoding,
VAR_DISABLE_MIME_INPUT, DEF_DISABLE_MIME_INPUT, &var_disable_mime_input,
VAR_DISABLE_MIME_OCONV, DEF_DISABLE_MIME_OCONV, &var_disable_mime_oconv,
VAR_HELPFUL_WARNINGS, DEF_HELPFUL_WARNINGS, &var_helpful_warnings,
0,
};
const char *cp;
/*
* Extract syslog_facility early, so that from here on all errors are
* logged with the proper facility.
*/
get_mail_conf_str_table(first_str_defaults);
if (!msg_syslog_facility(var_syslog_facility))
msg_fatal("file %s/%s: parameter %s: unrecognized value: %s",
var_config_dir, MAIN_CONF_FILE,
VAR_SYSLOG_FACILITY, var_syslog_facility);
/*
* Variables whose defaults are determined at runtime. Some sites use
* short hostnames in the host table; some sites name their system after
* the domain.
*/
get_mail_conf_str_fn_table(function_str_defaults);
if (!valid_hostname(var_myhostname, DO_GRIPE))
msg_fatal("file %s/%s: parameter %s: bad parameter value: %s",
var_config_dir, MAIN_CONF_FILE,
VAR_MYHOSTNAME, var_myhostname);
if (!valid_hostname(var_mydomain, DO_GRIPE))
msg_fatal("file %s/%s: parameter %s: bad parameter value: %s",
var_config_dir, MAIN_CONF_FILE,
VAR_MYDOMAIN, var_mydomain);
/*
* Variables that are needed by almost every program.
*/
get_mail_conf_str_table(other_str_defaults);
get_mail_conf_int_table(other_int_defaults);
get_mail_conf_bool_table(bool_defaults);
get_mail_conf_time_table(time_defaults);
check_default_privs();
check_mail_owner();
check_sgid_group();
check_overlap();
#ifdef HAS_DB
dict_db_cache_size = var_db_read_buf;
#endif
/*
* Variables whose defaults are determined at runtime, after other
* variables have been set. This dependency is admittedly a bit tricky.
* XXX Perhaps we should just register variables, and let the evaluator
* figure out in what order to evaluate things.
*/
get_mail_conf_str_fn_table(function_str_defaults_2);
/*
* The PID variable cannot be set from the configuration file!!
*/
set_mail_conf_int(VAR_PID, var_pid = getpid());
/*
* Neither can the start time variable. It isn't even visible.
*/
time(&var_starttime);
/*
* Export the syslog name so children can inherit and use it before they
* have initialized.
*/
if ((cp = safe_getenv(CONF_ENV_LOGTAG)) == 0
|| strcmp(cp, var_syslog_name) != 0)
if (setenv(CONF_ENV_LOGTAG, var_syslog_name, 1) < 0)
msg_fatal("setenv %s %s: %m", CONF_ENV_LOGTAG, var_syslog_name);
/*
* I have seen this happen just too often.
*/
if (strcasecmp(var_myhostname, var_relayhost) == 0)
msg_fatal("myhostname == relayhost");
/*
* One more sanity check.
*/
if ((cp = verp_delims_verify(var_verp_delims)) != 0)
msg_fatal("file %s/%s: parameters %s and %s: %s",
var_config_dir, MAIN_CONF_FILE,
VAR_VERP_DELIMS, VAR_VERP_FILTER, cp);
}
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