diff options
| -rw-r--r-- | llmnr.c | 14 |
1 files changed, 3 insertions, 11 deletions
@@ -22,6 +22,7 @@ #include <stdbool.h> #include <stdlib.h> #include <string.h> +#include <strings.h> #include <unistd.h> #include <arpa/inet.h> @@ -52,7 +53,7 @@ void llmnr_init(const char *hostname, bool ipv6) static bool llmnr_name_matches(const uint8_t *query) { - uint8_t i, n = llmnr_hostname[0]; + uint8_t n = llmnr_hostname[0]; /* length */ if (query[0] != n) @@ -61,16 +62,7 @@ static bool llmnr_name_matches(const uint8_t *query) if (query[1 + n] != 0) return false; - for (i = 1; i <= n; i++) { - char a = query[i]; - char b = llmnr_hostname[i]; - a = isalpha(a) ? tolower(a) : a; - b = isalpha(b) ? tolower(b) : b; - if (a != b) { - return false; - } - } - return true; + return strncasecmp((const char *)&query[1], &llmnr_hostname[1], n) == 0; } static void llmnr_respond(unsigned int ifindex, const struct llmnr_hdr *hdr, |