first draft

memstr.c

@@ -0,0 +1,25 @@
+/* 
+ * $smu-mark$ 
+ * $name: memstr.c$ 
+ * $author: Salvatore Sanfilippo <antirez@invece.org>$ 
+ * $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$ 
+ * $license: This software is under GPL version 2 of license$ 
+ * $date: Fri Nov  5 11:55:48 MET 1999$ 
+ * $rev: 4$ 
+ */ 
+
+#include <string.h>
+#include <stdlib.h> /* NULL macro */
+
+char *memstr(char *haystack, char *needle, int size)
+{
+	char *p;
+	char needlesize = strlen(needle);
+
+	for (p = haystack; p <= (haystack-needlesize+size); p++)
+	{
+		if (memcmp(p, needle, needlesize) == 0)
+			return p; /* found */
+	}
+	return NULL;
+}