strnlen for klibc

[Harald Hoyer <harald@redhat.com>]

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this implements strnlen for klibc

[-- Attachment #2: udev-025-klibc-strnlen.patch --]
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--- udev-025/klibc/klibc/strlen.c.strnlen	2004-04-21 23:39:10.000000000 +0200
+++ udev-025/klibc/klibc/strlen.c	2004-06-02 15:25:47.840212248 +0200
@@ -12,3 +12,13 @@
   return ss-s;
 }
 
+size_t strnlen(const char *s, size_t maxlen)
+{
+  const char *ss = s;
+  while(*ss && (maxlen > 0)) {
+	ss++;
+	maxlen--;
+  }
+  return ss-s;
+}
+
--- udev-025/klibc/klibc/include/string.h.strnlen	2004-06-02 15:26:45.185494440 +0200
+++ udev-025/klibc/klibc/include/string.h	2004-06-02 15:27:06.987180080 +0200
@@ -27,6 +27,7 @@
 __extern char *strndup(const char *, size_t);
 __extern char *strerror(int);
 __extern size_t strlen(const char *);
+__extern size_t strnlen(const char *, size_t);
 __extern char *strncat(char *, const char *, size_t);
 __extern int strncmp(const char *, const char *, size_t);
 __extern char *strncpy(char *, const char *, size_t);