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Diffstat (limited to 'src/journal/journald-syslog.c')
-rw-r--r--src/journal/journald-syslog.c110
1 files changed, 108 insertions, 2 deletions
diff --git a/src/journal/journald-syslog.c b/src/journal/journald-syslog.c
index 91664762e6..12c5b2849c 100644
--- a/src/journal/journald-syslog.c
+++ b/src/journal/journald-syslog.c
@@ -175,7 +175,7 @@ int syslog_fixup_facility(int priority) {
return priority;
}
-void syslog_read_identifier(const char **buf, char **identifier, char **pid) {
+void syslog_parse_identifier(const char **buf, char **identifier, char **pid) {
const char *p;
char *t;
size_t l, e;
@@ -225,6 +225,112 @@ void syslog_read_identifier(const char **buf, char **identifier, char **pid) {
*buf += strspn(*buf, WHITESPACE);
}
+void syslog_parse_priority(char **p, int *priority) {
+ int a = 0, b = 0, c = 0;
+ int k;
+
+ assert(p);
+ assert(*p);
+ assert(priority);
+
+ if ((*p)[0] != '<')
+ return;
+
+ if (!strchr(*p, '>'))
+ return;
+
+ 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;
+
+ if (a < 0 || b < 0 || c < 0)
+ return;
+
+ *priority = a*100+b*10+c;
+ *p += k;
+}
+
+static void syslog_skip_date(char **buf) {
+ enum {
+ LETTER,
+ SPACE,
+ NUMBER,
+ SPACE_OR_NUMBER,
+ COLON
+ } sequence[] = {
+ LETTER, LETTER, LETTER,
+ SPACE,
+ SPACE_OR_NUMBER, NUMBER,
+ SPACE,
+ SPACE_OR_NUMBER, NUMBER,
+ COLON,
+ SPACE_OR_NUMBER, NUMBER,
+ COLON,
+ SPACE_OR_NUMBER, NUMBER,
+ SPACE
+ };
+
+ char *p;
+ unsigned i;
+
+ assert(buf);
+ assert(*buf);
+
+ p = *buf;
+
+ for (i = 0; i < ELEMENTSOF(sequence); i++, p++) {
+
+ if (!*p)
+ return;
+
+ switch (sequence[i]) {
+
+ case SPACE:
+ if (*p != ' ')
+ return;
+ break;
+
+ case SPACE_OR_NUMBER:
+ if (*p == ' ')
+ break;
+
+ /* fall through */
+
+ case NUMBER:
+ if (*p < '0' || *p > '9')
+ return;
+
+ break;
+
+ case LETTER:
+ if (!(*p >= 'A' && *p <= 'Z') &&
+ !(*p >= 'a' && *p <= 'z'))
+ return;
+
+ break;
+
+ case COLON:
+ if (*p != ':')
+ return;
+ break;
+
+ }
+ }
+
+ *buf = p;
+}
+
void server_process_syslog_message(
Server *s,
const char *buf,
@@ -250,7 +356,7 @@ void server_process_syslog_message(
forward_syslog_raw(s, priority, orig, ucred, tv);
syslog_skip_date((char**) &buf);
- syslog_read_identifier(&buf, &identifier, &pid);
+ syslog_parse_identifier(&buf, &identifier, &pid);
if (s->forward_to_kmsg)
server_forward_kmsg(s, priority, identifier, buf, ucred);