lib/xstrndup.c

   1 /* Duplicate a bounded initial segment of a string, with out-of-memory
   2    checking.
   3    Copyright (C) 2003, 2006-2007, 2009-2020 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #include <config.h>
  19
  20 /* Specification.  */
  21 #include "xstrndup.h"
  22
  23 #include <string.h>
  24 #include "xalloc.h"
  25
  26 /* Return a newly allocated copy of at most N bytes of STRING.
  27    In other words, return a copy of the initial segment of length N of
  28    STRING.  */
  29 char *
  30 xstrndup (const char *string, size_t n)
  31 {
  32   char *s = strndup (string, n);
  33   if (! s)
  34     xalloc_die ();
  35   return s;
  36 }