pam: Fix CID 1034871 Resource leak

[gd/samba-autobuild/.git] / nsswitch / wins.c

diff --git a/nsswitch/wins.c b/nsswitch/wins.c
index d63968b2bc5a3a055de016ad666a1800544f7576..5127ee479f40812677f465734d94bd652604e811 100644 (file)
--- a/nsswitch/wins.c
+++ b/nsswitch/wins.c
@@ -59,10 +59,12 @@ static void nss_wins_init(void)
 
 static struct in_addr *lookup_byname_backend(const char *name, int *count)
 {
-       TALLOC_CTX *frame = talloc_stackframe();
+       TALLOC_CTX *frame;
        struct sockaddr_storage *address = NULL;
        struct in_addr *ret = NULL;
        NTSTATUS status;
+       const char *p;
+       size_t nbt_len;
        int j;
 
        if (!initialised) {
@@ -71,6 +73,16 @@ static struct in_addr *lookup_byname_backend(const char *name, int *count)
 
        *count = 0;
 
+       nbt_len = strlen(name);
+       if (nbt_len > MAX_NETBIOSNAME_LEN - 1) {
+               return NULL;
+       }
+       p = strchr(name, '.');
+       if (p != NULL) {
+               return NULL;
+       }
+
+       frame = talloc_stackframe();
        /* always try with wins first */
        status = resolve_wins(name, 0x00, talloc_tos(),
                              &address, count);