banned.h: mark strncat() as banned
strncat() has the same quadratic behavior as strcat() and is
difficult-to-read and bug-prone. While it hasn't yet been a
problem in git iself, strncat() found it's way into 'master'
of cgit and caused segfaults on my system.
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/banned.h b/banned.h
index 28f5937..447af24 100644
--- a/banned.h
+++ b/banned.h
@@ -16,6 +16,8 @@
#define strcat(x,y) BANNED(strcat)
#undef strncpy
#define strncpy(x,y,n) BANNED(strncpy)
+#undef strncat
+#define strncat(x,y,n) BANNED(strncat)
#undef sprintf
#undef vsprintf
