libc/string/strndup.c

   1 /*
   2  * Copyright (C) 2002     Manuel Novoa III
   3  * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
   4  *
   5  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   6  */
   7
   8 #include "_string.h"
   9 #include <stdlib.h>
  10
  11
  12 char *strndup(register const char *s1, size_t n)
  13 {
  14         register char *s;
  15
  16         n = strnlen(s1,n);                      /* Avoid problems if s1 not nul-terminated. */
  17
  18     if ((s = malloc(n + 1)) != NULL) {
  19                 memcpy(s, s1, n);
  20                 s[n] = 0;
  21         }
  22
  23         return s;
  24 }
  25 libc_hidden_def(strndup)