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-rw-r--r--src/basic/syslog-util.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/src/basic/syslog-util.c b/src/basic/syslog-util.c
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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <syslog.h>
+
+#include "assert.h"
+#include "hexdecoct.h"
+#include "string-table.h"
+#include "syslog-util.h"
+
+int syslog_parse_priority(const char **p, int *priority, bool with_facility) {
+ int a = 0, b = 0, c = 0;
+ int k;
+
+ assert(p);
+ assert(*p);
+ assert(priority);
+
+ if ((*p)[0] != '<')
+ return 0;
+
+ if (!strchr(*p, '>'))
+ return 0;
+
+ if ((*p)[2] == '>') {
+ c = undecchar((*p)[1]);
+ k = 3;
+ } else if ((*p)[3] == '>') {
+ b = undecchar((*p)[1]);
+ c = undecchar((*p)[2]);
+ k = 4;
+ } else if ((*p)[4] == '>') {
+ a = undecchar((*p)[1]);
+ b = undecchar((*p)[2]);
+ c = undecchar((*p)[3]);
+ k = 5;
+ } else
+ return 0;
+
+ if (a < 0 || b < 0 || c < 0 ||
+ (!with_facility && (a || b || c > 7)))
+ return 0;
+
+ if (with_facility)
+ *priority = a*100 + b*10 + c;
+ else
+ *priority = (*priority & LOG_FACMASK) | c;
+
+ *p += k;
+ return 1;
+}
+
+static const char *const log_facility_unshifted_table[LOG_NFACILITIES] = {
+ [LOG_FAC(LOG_KERN)] = "kern",
+ [LOG_FAC(LOG_USER)] = "user",
+ [LOG_FAC(LOG_MAIL)] = "mail",
+ [LOG_FAC(LOG_DAEMON)] = "daemon",
+ [LOG_FAC(LOG_AUTH)] = "auth",
+ [LOG_FAC(LOG_SYSLOG)] = "syslog",
+ [LOG_FAC(LOG_LPR)] = "lpr",
+ [LOG_FAC(LOG_NEWS)] = "news",
+ [LOG_FAC(LOG_UUCP)] = "uucp",
+ [LOG_FAC(LOG_CRON)] = "cron",
+ [LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
+ [LOG_FAC(LOG_FTP)] = "ftp",
+ [LOG_FAC(LOG_LOCAL0)] = "local0",
+ [LOG_FAC(LOG_LOCAL1)] = "local1",
+ [LOG_FAC(LOG_LOCAL2)] = "local2",
+ [LOG_FAC(LOG_LOCAL3)] = "local3",
+ [LOG_FAC(LOG_LOCAL4)] = "local4",
+ [LOG_FAC(LOG_LOCAL5)] = "local5",
+ [LOG_FAC(LOG_LOCAL6)] = "local6",
+ [LOG_FAC(LOG_LOCAL7)] = "local7"
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_facility_unshifted, int, LOG_FAC(~0));
+
+bool log_facility_unshifted_is_valid(int facility) {
+ return facility >= 0 && facility <= LOG_FAC(~0);
+}
+
+static const char *const log_level_table[] = {
+ [LOG_EMERG] = "emerg",
+ [LOG_ALERT] = "alert",
+ [LOG_CRIT] = "crit",
+ [LOG_ERR] = "err",
+ [LOG_WARNING] = "warning",
+ [LOG_NOTICE] = "notice",
+ [LOG_INFO] = "info",
+ [LOG_DEBUG] = "debug"
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_level, int, LOG_DEBUG);
+
+bool log_level_is_valid(int level) {
+ return level >= 0 && level <= LOG_DEBUG;
+}