Add str[r]n[case]str and str[n][case]cmpnul

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 17 insertions, 0 deletions

diff --git a/strncasestr.c b/strncasestr.c
new file mode 100644
index 0000000..cd7fd8a
--- /dev/null
+++ b/strncasestr.c
@@ -0,0 +1,17 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+
+
+char *
+libsimple_strncasestr(const char *h_, const char *n, size_t len)
+{
+	char *h = *(char **)(void *)&h_;
+	size_t nn = strlen(n);
+	nn = MIN(nn, len);
+	if (!nn)
+		return h;
+	for (; *h && len--; h++)
+		if (!strncasecmp(h, n, nn))
+			return h;
+	return NULL;
+}