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[Xen-devel] [PATCH] [Mini-OS] Add strrchr()

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Subject: [Xen-devel] [PATCH] [Mini-OS] Add strrchr()
From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
Date: Fri, 23 Nov 2007 16:36:03 +0000
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Add strrchr(), useful e.g. for grabbing the last part of a xenbus path.

Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxx>

diff -r f2711b7eae95 -r 36bf1e737b87 extras/mini-os/include/lib.h
--- a/extras/mini-os/include/lib.h      Thu Nov 22 19:55:42 2007 +0000
+++ b/extras/mini-os/include/lib.h      Fri Nov 23 13:21:02 2007 +0000
@@ -87,6 +87,7 @@
 size_t strnlen(const char *s, size_t count);
 size_t strlen(const char *s);
 char  *strchr(const char *s, int c);
+char  *strrchr(const char *s, int c);
 char  *strstr(const char *s1, const char *s2);
 char * strcat(char * dest, const char * src);
 char  *strdup(const char *s);
--- a/extras/mini-os/lib/string.c       Thu Nov 22 19:55:42 2007 +0000
+++ b/extras/mini-os/lib/string.c       Fri Nov 23 13:21:02 2007 +0000
@@ -140,6 +140,15 @@
         return (char *)s;
 }
 
+char * strrchr(const char * s, int c)
+{
+        const char *res;
+        for(; *s != '\0'; ++s)
+                if (*s == (char) c)
+                        res = s;
+        return (char *)res;
+}
+
 char * strstr(const char * s1,const char * s2)
 {
         int l1, l2;

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