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MEDIUM: cfgparse: check max arguments in the proxies sections

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Add checks on the maximum number of arguments in proxies sections.
This commit is contained in:
William Lallemand 2015-04-28 20:17:49 +02:00 committed by Willy Tarreau
parent 1a748aed07
commit df1425ad45
1 changed files with 92 additions and 0 deletions
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92
src/cfgparse.c
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@ -2714,6 +2714,9 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
if (warnifnotcap(curproxy, PR_CAP_FE, file, linenum, args[0], NULL)) if (warnifnotcap(curproxy, PR_CAP_FE, file, linenum, args[0], NULL))
err_code |= ERR_WARN; err_code |= ERR_WARN;
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (!*args[1]) { if (!*args[1]) {
Alert("parsing [%s:%d] : '%s' expects an URI.\n", Alert("parsing [%s:%d] : '%s' expects an URI.\n",
file, linenum, args[0]); file, linenum, args[0]);
@ -2730,6 +2733,9 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
goto out; goto out;
} }
else if (!strcmp(args[0], "mode")) { /* sets the proxy mode */ else if (!strcmp(args[0], "mode")) { /* sets the proxy mode */
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (!strcmp(args[1], "http")) curproxy->mode = PR_MODE_HTTP; if (!strcmp(args[1], "http")) curproxy->mode = PR_MODE_HTTP;
else if (!strcmp(args[1], "tcp")) curproxy->mode = PR_MODE_TCP; else if (!strcmp(args[1], "tcp")) curproxy->mode = PR_MODE_TCP;
else if (!strcmp(args[1], "health")) curproxy->mode = PR_MODE_HEALTH; else if (!strcmp(args[1], "health")) curproxy->mode = PR_MODE_HEALTH;
@ -2749,6 +2755,9 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
goto out; goto out;
} }
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (!*args[1]) { if (!*args[1]) {
Alert("parsing [%s:%d]: '%s' expects an integer argument.\n", Alert("parsing [%s:%d]: '%s' expects an integer argument.\n",
file, linenum, args[0]); file, linenum, args[0]);
@ -2807,9 +2816,13 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
} }
else if (!strcmp(args[0], "disabled")) { /* disables this proxy */ else if (!strcmp(args[0], "disabled")) { /* disables this proxy */
if (alertif_too_many_args(0, file, linenum, args, &err_code))
goto out;
curproxy->state = PR_STSTOPPED; curproxy->state = PR_STSTOPPED;
} }
else if (!strcmp(args[0], "enabled")) { /* enables this proxy (used to revert a disabled default) */ else if (!strcmp(args[0], "enabled")) { /* enables this proxy (used to revert a disabled default) */
if (alertif_too_many_args(0, file, linenum, args, &err_code))
goto out;
curproxy->state = PR_STNEW; curproxy->state = PR_STNEW;
} }
else if (!strcmp(args[0], "bind-process")) { /* enable this proxy only on some processes */ else if (!strcmp(args[0], "bind-process")) { /* enable this proxy only on some processes */
@ -3116,6 +3129,8 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
} }
if (!strcmp(args[1], "command")) { if (!strcmp(args[1], "command")) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (*(args[1]) == 0) { if (*(args[1]) == 0) {
Alert("parsing [%s:%d] : missing argument after '%s'.\n", Alert("parsing [%s:%d] : missing argument after '%s'.\n",
file, linenum, args[1]); file, linenum, args[1]);
@ -3126,6 +3141,8 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
curproxy->check_command = strdup(args[2]); curproxy->check_command = strdup(args[2]);
} }
else if (!strcmp(args[1], "path")) { else if (!strcmp(args[1], "path")) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (*(args[1]) == 0) { if (*(args[1]) == 0) {
Alert("parsing [%s:%d] : missing argument after '%s'.\n", Alert("parsing [%s:%d] : missing argument after '%s'.\n",
file, linenum, args[1]); file, linenum, args[1]);
@ -3159,6 +3176,9 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
beg = args[1] + 11; beg = args[1] + 11;
end = strchr(beg, ')'); end = strchr(beg, ')');
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (!end || end == beg) { if (!end || end == beg) {
Alert("parsing [%s:%d] : persist rdp-cookie(name)' requires an rdp cookie name.\n", Alert("parsing [%s:%d] : persist rdp-cookie(name)' requires an rdp cookie name.\n",
file, linenum); file, linenum);
@ -3354,6 +3374,9 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], NULL)) if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], NULL))
err_code |= ERR_WARN; err_code |= ERR_WARN;
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (*(args[1]) == 0) { if (*(args[1]) == 0) {
Alert("parsing [%s:%d] : '%s' expects an integer argument (dispatch counts for one).\n", Alert("parsing [%s:%d] : '%s' expects an integer argument (dispatch counts for one).\n",
file, linenum, args[0]); file, linenum, args[0]);
@ -4120,6 +4143,9 @@ stats_error_parsing:
err_code |= ERR_ALERT | ERR_FATAL; err_code |= ERR_ALERT | ERR_FATAL;
goto out; goto out;
} }
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (warnifnotcap(curproxy, cfg_opts[optnum].cap, file, linenum, args[1], NULL)) { if (warnifnotcap(curproxy, cfg_opts[optnum].cap, file, linenum, args[1], NULL)) {
err_code |= ERR_WARN; err_code |= ERR_WARN;
goto out; goto out;
@ -4151,6 +4177,8 @@ stats_error_parsing:
err_code |= ERR_ALERT | ERR_FATAL; err_code |= ERR_ALERT | ERR_FATAL;
goto out; goto out;
} }
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (warnifnotcap(curproxy, cfg_opts2[optnum].cap, file, linenum, args[1], NULL)) { if (warnifnotcap(curproxy, cfg_opts2[optnum].cap, file, linenum, args[1], NULL)) {
err_code |= ERR_WARN; err_code |= ERR_WARN;
goto out; goto out;
@ -4179,6 +4207,8 @@ stats_error_parsing:
* sections). * sections).
*/ */
if (strcmp(args[1], "httpclose") == 0) { if (strcmp(args[1], "httpclose") == 0) {
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (kwm == KWM_STD) { if (kwm == KWM_STD) {
curproxy->options &= ~PR_O_HTTP_MODE; curproxy->options &= ~PR_O_HTTP_MODE;
curproxy->options |= PR_O_HTTP_PCL; curproxy->options |= PR_O_HTTP_PCL;
@ -4191,6 +4221,8 @@ stats_error_parsing:
} }
} }
else if (strcmp(args[1], "forceclose") == 0) { else if (strcmp(args[1], "forceclose") == 0) {
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (kwm == KWM_STD) { if (kwm == KWM_STD) {
curproxy->options &= ~PR_O_HTTP_MODE; curproxy->options &= ~PR_O_HTTP_MODE;
curproxy->options |= PR_O_HTTP_FCL; curproxy->options |= PR_O_HTTP_FCL;
@ -4203,6 +4235,8 @@ stats_error_parsing:
} }
} }
else if (strcmp(args[1], "http-server-close") == 0) { else if (strcmp(args[1], "http-server-close") == 0) {
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (kwm == KWM_STD) { if (kwm == KWM_STD) {
curproxy->options &= ~PR_O_HTTP_MODE; curproxy->options &= ~PR_O_HTTP_MODE;
curproxy->options |= PR_O_HTTP_SCL; curproxy->options |= PR_O_HTTP_SCL;
@ -4215,6 +4249,8 @@ stats_error_parsing:
} }
} }
else if (strcmp(args[1], "http-keep-alive") == 0) { else if (strcmp(args[1], "http-keep-alive") == 0) {
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (kwm == KWM_STD) { if (kwm == KWM_STD) {
curproxy->options &= ~PR_O_HTTP_MODE; curproxy->options &= ~PR_O_HTTP_MODE;
curproxy->options |= PR_O_HTTP_KAL; curproxy->options |= PR_O_HTTP_KAL;
@ -4227,6 +4263,8 @@ stats_error_parsing:
} }
} }
else if (strcmp(args[1], "http-tunnel") == 0) { else if (strcmp(args[1], "http-tunnel") == 0) {
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (kwm == KWM_STD) { if (kwm == KWM_STD) {
curproxy->options &= ~PR_O_HTTP_MODE; curproxy->options &= ~PR_O_HTTP_MODE;
curproxy->options |= PR_O_HTTP_TUN; curproxy->options |= PR_O_HTTP_TUN;
@ -4290,6 +4328,8 @@ stats_error_parsing:
err_code |= ERR_ALERT | ERR_FATAL; err_code |= ERR_ALERT | ERR_FATAL;
goto out; goto out;
} }
if (alertif_too_many_args_idx(1, 1, file, linenum, args, &err_code))
goto out;
} }
if (curproxy->conf.logformat_string != default_http_log_format && if (curproxy->conf.logformat_string != default_http_log_format &&
curproxy->conf.logformat_string != default_tcp_log_format && curproxy->conf.logformat_string != default_tcp_log_format &&
@ -4312,12 +4352,18 @@ stats_error_parsing:
free(curproxy->conf.lfs_file); free(curproxy->conf.lfs_file);
curproxy->conf.lfs_file = strdup(curproxy->conf.args.file); curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
curproxy->conf.lfs_line = curproxy->conf.args.line; curproxy->conf.lfs_line = curproxy->conf.args.line;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "tcpka")) { else if (!strcmp(args[1], "tcpka")) {
/* enable TCP keep-alives on client and server streams */ /* enable TCP keep-alives on client and server streams */
if (warnifnotcap(curproxy, PR_CAP_BE | PR_CAP_FE, file, linenum, args[1], NULL)) if (warnifnotcap(curproxy, PR_CAP_BE | PR_CAP_FE, file, linenum, args[1], NULL))
err_code |= ERR_WARN; err_code |= ERR_WARN;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
if (curproxy->cap & PR_CAP_FE) if (curproxy->cap & PR_CAP_FE)
curproxy->options |= PR_O_TCP_CLI_KA; curproxy->options |= PR_O_TCP_CLI_KA;
if (curproxy->cap & PR_CAP_BE) if (curproxy->cap & PR_CAP_BE)
@ -4351,6 +4397,8 @@ stats_error_parsing:
curproxy->check_len = snprintf(curproxy->check_req, reqlen, curproxy->check_len = snprintf(curproxy->check_req, reqlen,
"%s %s %s\r\n", args[2], args[3], *args[4]?args[4]:"HTTP/1.0"); "%s %s %s\r\n", args[2], args[3], *args[4]?args[4]:"HTTP/1.0");
} }
if (alertif_too_many_args_idx(3, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "ssl-hello-chk")) { else if (!strcmp(args[1], "ssl-hello-chk")) {
/* use SSLv3 CLIENT HELLO to check servers' health */ /* use SSLv3 CLIENT HELLO to check servers' health */
@ -4361,6 +4409,9 @@ stats_error_parsing:
curproxy->check_req = NULL; curproxy->check_req = NULL;
curproxy->options2 &= ~PR_O2_CHK_ANY; curproxy->options2 &= ~PR_O2_CHK_ANY;
curproxy->options2 |= PR_O2_SSL3_CHK; curproxy->options2 |= PR_O2_SSL3_CHK;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "smtpchk")) { else if (!strcmp(args[1], "smtpchk")) {
/* use SMTP request to check servers' health */ /* use SMTP request to check servers' health */
@ -4385,6 +4436,8 @@ stats_error_parsing:
curproxy->check_len = strlen(DEF_SMTP_CHECK_REQ); curproxy->check_len = strlen(DEF_SMTP_CHECK_REQ);
} }
} }
if (alertif_too_many_args_idx(2, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "pgsql-check")) { else if (!strcmp(args[1], "pgsql-check")) {
/* use PostgreSQL request to check servers' health */ /* use PostgreSQL request to check servers' health */
@ -4443,6 +4496,8 @@ stats_error_parsing:
} }
} /* end while loop */ } /* end while loop */
} }
if (alertif_too_many_args_idx(2, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "redis-check")) { else if (!strcmp(args[1], "redis-check")) {
@ -4458,6 +4513,9 @@ stats_error_parsing:
curproxy->check_req = (char *) malloc(sizeof(DEF_REDIS_CHECK_REQ) - 1); curproxy->check_req = (char *) malloc(sizeof(DEF_REDIS_CHECK_REQ) - 1);
memcpy(curproxy->check_req, DEF_REDIS_CHECK_REQ, sizeof(DEF_REDIS_CHECK_REQ) - 1); memcpy(curproxy->check_req, DEF_REDIS_CHECK_REQ, sizeof(DEF_REDIS_CHECK_REQ) - 1);
curproxy->check_len = sizeof(DEF_REDIS_CHECK_REQ) - 1; curproxy->check_len = sizeof(DEF_REDIS_CHECK_REQ) - 1;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "mysql-check")) { else if (!strcmp(args[1], "mysql-check")) {
@ -4587,6 +4645,8 @@ stats_error_parsing:
curproxy->check_req = (char *) malloc(sizeof(DEF_LDAP_CHECK_REQ) - 1); curproxy->check_req = (char *) malloc(sizeof(DEF_LDAP_CHECK_REQ) - 1);
memcpy(curproxy->check_req, DEF_LDAP_CHECK_REQ, sizeof(DEF_LDAP_CHECK_REQ) - 1); memcpy(curproxy->check_req, DEF_LDAP_CHECK_REQ, sizeof(DEF_LDAP_CHECK_REQ) - 1);
curproxy->check_len = sizeof(DEF_LDAP_CHECK_REQ) - 1; curproxy->check_len = sizeof(DEF_LDAP_CHECK_REQ) - 1;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "tcp-check")) { else if (!strcmp(args[1], "tcp-check")) {
/* use raw TCPCHK send/expect to check servers' health */ /* use raw TCPCHK send/expect to check servers' health */
@ -4597,6 +4657,8 @@ stats_error_parsing:
curproxy->check_req = NULL; curproxy->check_req = NULL;
curproxy->options2 &= ~PR_O2_CHK_ANY; curproxy->options2 &= ~PR_O2_CHK_ANY;
curproxy->options2 |= PR_O2_TCPCHK_CHK; curproxy->options2 |= PR_O2_TCPCHK_CHK;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "external-check")) { else if (!strcmp(args[1], "external-check")) {
/* excute an external command to check servers' health */ /* excute an external command to check servers' health */
@ -4604,6 +4666,8 @@ stats_error_parsing:
curproxy->check_req = NULL; curproxy->check_req = NULL;
curproxy->options2 &= ~PR_O2_CHK_ANY; curproxy->options2 &= ~PR_O2_CHK_ANY;
curproxy->options2 |= PR_O2_EXT_CHK; curproxy->options2 |= PR_O2_EXT_CHK;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[1], "forwardfor")) { else if (!strcmp(args[1], "forwardfor")) {
int cur_arg; int cur_arg;
@ -4722,6 +4786,9 @@ stats_error_parsing:
} }
free(curproxy->defbe.name); free(curproxy->defbe.name);
curproxy->defbe.name = strdup(args[1]); curproxy->defbe.name = strdup(args[1]);
if (alertif_too_many_args_idx(1, 0, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[0], "redispatch") || !strcmp(args[0], "redisp")) { else if (!strcmp(args[0], "redispatch") || !strcmp(args[0], "redisp")) {
if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], NULL)) if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], NULL))
@ -4733,6 +4800,9 @@ stats_error_parsing:
err_code |= ERR_WARN; err_code |= ERR_WARN;
/* enable reconnections to dispatch */ /* enable reconnections to dispatch */
curproxy->options |= PR_O_REDISP; curproxy->options |= PR_O_REDISP;
if (alertif_too_many_args_idx(1, 0, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[0], "http-check")) { else if (!strcmp(args[0], "http-check")) {
if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], NULL)) if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], NULL))
@ -4741,10 +4811,14 @@ stats_error_parsing:
if (strcmp(args[1], "disable-on-404") == 0) { if (strcmp(args[1], "disable-on-404") == 0) {
/* enable a graceful server shutdown on an HTTP 404 response */ /* enable a graceful server shutdown on an HTTP 404 response */
curproxy->options |= PR_O_DISABLE404; curproxy->options |= PR_O_DISABLE404;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (strcmp(args[1], "send-state") == 0) { else if (strcmp(args[1], "send-state") == 0) {
/* enable emission of the apparent state of a server in HTTP checks */ /* enable emission of the apparent state of a server in HTTP checks */
curproxy->options2 |= PR_O2_CHK_SNDST; curproxy->options2 |= PR_O2_CHK_SNDST;
if (alertif_too_many_args_idx(0, 1, file, linenum, args, &err_code))
goto out;
} }
else if (strcmp(args[1], "expect") == 0) { else if (strcmp(args[1], "expect") == 0) {
const char *ptr_arg; const char *ptr_arg;
@ -4877,6 +4951,8 @@ stats_error_parsing:
tcpcheck->comment = strdup(args[cur_arg + 1]); tcpcheck->comment = strdup(args[cur_arg + 1]);
LIST_ADDQ(&curproxy->tcpcheck_rules, &tcpcheck->list); LIST_ADDQ(&curproxy->tcpcheck_rules, &tcpcheck->list);
if (alertif_too_many_args_idx(1, 1, file, linenum, args, &err_code))
goto out;
} }
else if (strcmp(args[1], "connect") == 0) { else if (strcmp(args[1], "connect") == 0) {
const char *ptr_arg; const char *ptr_arg;
@ -5205,6 +5281,8 @@ stats_error_parsing:
else if (!strcmp(args[0], "transparent")) { else if (!strcmp(args[0], "transparent")) {
/* enable transparent proxy connections */ /* enable transparent proxy connections */
curproxy->options |= PR_O_TRANSP; curproxy->options |= PR_O_TRANSP;
if (alertif_too_many_args(0, file, linenum, args, &err_code))
goto out;
} }
#endif #endif
else if (!strcmp(args[0], "maxconn")) { /* maxconn */ else if (!strcmp(args[0], "maxconn")) { /* maxconn */
@ -5217,6 +5295,8 @@ stats_error_parsing:
goto out; goto out;
} }
curproxy->maxconn = atol(args[1]); curproxy->maxconn = atol(args[1]);
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[0], "backlog")) { /* backlog */ else if (!strcmp(args[0], "backlog")) { /* backlog */
if (warnifnotcap(curproxy, PR_CAP_FE, file, linenum, args[0], NULL)) if (warnifnotcap(curproxy, PR_CAP_FE, file, linenum, args[0], NULL))
@ -5228,6 +5308,8 @@ stats_error_parsing:
goto out; goto out;
} }
curproxy->backlog = atol(args[1]); curproxy->backlog = atol(args[1]);
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[0], "fullconn")) { /* fullconn */ else if (!strcmp(args[0], "fullconn")) { /* fullconn */
if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], " Maybe you want 'maxconn' instead ?")) if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], " Maybe you want 'maxconn' instead ?"))
@ -5239,6 +5321,8 @@ stats_error_parsing:
goto out; goto out;
} }
curproxy->fullconn = atol(args[1]); curproxy->fullconn = atol(args[1]);
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[0], "grace")) { /* grace time (ms) */ else if (!strcmp(args[0], "grace")) { /* grace time (ms) */
if (*(args[1]) == 0) { if (*(args[1]) == 0) {
@ -5254,6 +5338,8 @@ stats_error_parsing:
goto out; goto out;
} }
curproxy->grace = val; curproxy->grace = val;
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
} }
else if (!strcmp(args[0], "dispatch")) { /* dispatch address */ else if (!strcmp(args[0], "dispatch")) { /* dispatch address */
struct sockaddr_storage *sk; struct sockaddr_storage *sk;
@ -5297,6 +5383,9 @@ stats_error_parsing:
goto out; goto out;
} }
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
curproxy->dispatch_addr = *sk; curproxy->dispatch_addr = *sk;
curproxy->options |= PR_O_DISPATCH; curproxy->options |= PR_O_DISPATCH;
} }
@ -5504,6 +5593,9 @@ stats_error_parsing:
logline = realloc(logline, global.max_syslog_len + 1); logline = realloc(logline, global.max_syslog_len + 1);
} }
if (alertif_too_many_args_idx(3, arg + 1, file, linenum, args, &err_code))
goto out;
logsrv->facility = get_log_facility(args[arg+2]); logsrv->facility = get_log_facility(args[arg+2]);
if (logsrv->facility < 0) { if (logsrv->facility < 0) {
Alert("parsing [%s:%d] : unknown log facility '%s'\n", file, linenum, args[arg+2]); Alert("parsing [%s:%d] : unknown log facility '%s'\n", file, linenum, args[arg+2]);