From b36751b7970a699f453da471261d258868741281 Mon Sep 17 00:00:00 2001
From: skotlex <skotlex@54d463be-8e91-2dee-dedb-b68131a5f0ec>
Date: Fri, 28 Apr 2006 14:36:55 +0000
Subject: - Added function stristr to strlib.c, used by mob.c and item_db.c for
 case-insensitive seeks.

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@6345 54d463be-8e91-2dee-dedb-b68131a5f0ec
---
 src/common/strlib.c | 35 +++++++++++++++++++++++++++++++++++
 src/common/strlib.h |  1 +
 2 files changed, 36 insertions(+)

(limited to 'src/common')

diff --git a/src/common/strlib.c b/src/common/strlib.c
index 94f815839..d62bf4f46 100644
--- a/src/common/strlib.c
+++ b/src/common/strlib.c
@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <ctype.h>
 
 #include "strlib.h"
 #include "utils.h"
@@ -137,6 +138,40 @@ char *trim(char *str, const char *delim)
 	return str;
 }
 
+
+//stristr: Case insensitive version of strstr, code taken from 
+//http://www.daniweb.com/code/snippet313.html, Dave Sinkula
+//
+const char *stristr(const char *haystack, const char *needle)
+{
+	if ( !*needle )
+	{
+		return haystack;
+	}
+	for ( ; *haystack; ++haystack )
+	{
+		if ( toupper(*haystack) == toupper(*needle) )
+		{
+			/*
+			* Matched starting char -- loop through remaining chars.
+			*/
+			const char *h, *n;
+			for ( h = haystack, n = needle; *h && *n; ++h, ++n )
+			{
+				if ( toupper(*h) != toupper(*n) )
+				{
+					break;
+				}
+			}
+			if ( !*n ) /* matched all of 'needle' to null termination */
+			{
+				return haystack; /* return the start of the match */
+			}
+		}
+	}
+	return 0;
+}
+
 #ifdef __WIN32
 char *_strtok_r(char *s1, const char *s2, char **lasts)
 {
diff --git a/src/common/strlib.h b/src/common/strlib.h
index 51d865149..225228c74 100644
--- a/src/common/strlib.h
+++ b/src/common/strlib.h
@@ -20,4 +20,5 @@ char *_strtok_r(char *s1, const char *s2, char **lasts);
 // custom functions
 int remove_control_chars(unsigned char *);
 char *trim(char *str, const char *delim);
+const char *stristr(const char *haystack, const char *needle);
 #endif
-- 
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