libcli/security: Remove a call to strncasecmp

diff --git a/libcli/security/dom_sid.c b/libcli/security/dom_sid.c
index 0c8890079af7e8d99305fe4e83391e20f8a6af1b..7cb50c926c4bdeef9a576ac4d308c8c74bd6c716 100644 (file)
--- a/libcli/security/dom_sid.c
+++ b/libcli/security/dom_sid.c
@@ -85,16 +85,12 @@ bool dom_sid_equal(const struct dom_sid *sid1, const struct dom_sid *sid2)
        return dom_sid_compare(sid1, sid2) == 0;
 }
 
-/* Yes, I did think about multibyte issues here, and for all I can see there's
- * none of those for parsing a SID. */
-#undef strncasecmp
-
 bool dom_sid_parse(const char *sidstr, struct dom_sid *ret)
 {
        uint_t rev, ia, num_sub_auths, i;
        char *p;
 
-       if (strncasecmp(sidstr, "S-", 2)) {
+       if ((sidstr[0] != 'S' && sidstr[0] != 's') || sidstr[1] != '-') {
                return false;
        }