lib/sh/strdup.c

   1 /* strdup - return a copy of a string in newly-allocated memory. */
   2
   3 /* Copyright (C) 2013 Free Software Foundation, Inc.
   4
   5    This file is part of GNU Bash, the Bourne Again SHell.
   6
   7    Bash is free software: you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation, either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    Bash is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with Bash.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21
  22 #include <config.h>
  23
  24 /* Get specification.  */
  25 #include <string.h>
  26 #include <stdlib.h>
  27
  28 /* Duplicate S, returning an identical malloc'd string.  */
  29 char *
  30 strdup (s)
  31      const char *s;
  32 {
  33   size_t len;
  34   void *new;
  35
  36   len = strlen (s) + 1;
  37   if ((new = malloc (len)) == NULL)
  38     return NULL;
  39
  40   memcpy (new, s, len);
  41   return ((char *)new);
  42 }