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Date: Thu, 21 Feb 2013 10:44:25 -0500
From: Strake <strake888@...il.com>
To: musl <musl@...ts.openwall.com>
Subject: Re: [PATCH] write strcasestr
Sorry, included stdio for fault-finding and forgot to exclude it again.
>From 60b96f3e18f75d989c09ab4d6dc3958558d766fb Mon Sep 17 00:00:00 2001
From: Strake <strake888@...il.com>
Date: Thu, 21 Feb 2013 10:41:09 -0500
Subject: [PATCH] write strcasestr
---
src/string/strcasestr.c | 35 +++++++++++++++++++++++++++++++----
1 file changed, 31 insertions(+), 4 deletions(-)
diff --git a/src/string/strcasestr.c b/src/string/strcasestr.c
index f1cb0e8..b21a7b5 100644
--- a/src/string/strcasestr.c
+++ b/src/string/strcasestr.c
@@ -1,7 +1,34 @@
+#include <stdlib.h>
#include <string.h>
+#include <wchar.h>
-char *strcasestr(const char *h, const char *n)
-{
- //FIXME!
- return strstr(h, n);
+static void mbstolower (char *s) {
+ mbstate_t mbst;
+ wchar_t wx;
+
+ while (*s) {
+ memset (&mbst, 0, sizeof (mbstate_t));
+ if (mbrtowc (&wx, s, MB_CUR_MAX, &mbst) < 0) break;
+ wx = towlower (wx);
+ memset (&mbst, 0, sizeof (mbstate_t));
+ s += wcrtomb (s, wx, &mbst);
+ }
+}
+
+char *strcasestr (const char *s, const char *t) {
+ char *x, *y, *z;
+
+ x = strdup (s); if (!x) return 0;
+ y = strdup (t); if (!y) return 0;
+
+ mbstolower (x);
+ mbstolower (y);
+
+ z = strstr (x, y);
+ if (z) s += z - x; else s = 0;
+
+ free (x);
+ free (y);
+
+ return s;
}
--
1.7.11.3
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