diff options
| -rw-r--r-- | src/shared/util.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/shared/util.c b/src/shared/util.c index 891182a35b..11cab6dcf1 100644 --- a/src/shared/util.c +++ b/src/shared/util.c @@ -4248,6 +4248,11 @@ bool hostname_is_valid(const char *s) { if (isempty(s)) return false; + /* Doesn't accept empty hostnames, hostnames with trailing or + * leading dots, and hostnames with multiple dots in a + * sequence. Also ensures that the length stays below + * HOST_NAME_MAX. */ + for (p = s, dot = true; *p; p++) { if (*p == '.') { if (dot) |