posix/lib/psxdll/string/strdup.c

   1 /* $Id: strdup.c,v 1.4 2002/10/29 04:45:42 rex Exp $
   2  */
   3 /*
   4  * COPYRIGHT:   See COPYING in the top level directory
   5  * PROJECT:     ReactOS POSIX+ Subsystem
   6  * FILE:        subsys/psx/lib/psxdll/string/strdup.c
   7  * PURPOSE:     Duplicate a string
   8  * PROGRAMMER:  KJK::Hyperion <noog@libero.it>
   9  * UPDATE HISTORY:
  10  *              21/01/2002: Created
  11  */
  12
  13 #include <string.h>
  14 #include <stdlib.h>
  15 #include <psx/debug.h>
  16
  17 char *strdup(const char *s1)
  18 {
  19  char *pchRetBuf;
  20  int   nStrLen;
  21
  22  HINT("strdup() is inefficient - consider dropping zero-terminated strings");
  23
  24  if (s1 == 0)
  25   return 0;
  26
  27  nStrLen = strlen(s1);
  28
  29  /* allocate enough buffer space for s1 and the null terminator */
  30  pchRetBuf = (char *) malloc(nStrLen + 1);
  31
  32  if (pchRetBuf == 0)
  33   /* memory allocation failed */
  34   return 0;
  35
  36  /* copy the string */
  37  strcpy(pchRetBuf, s1);
  38
  39  return pchRetBuf;
  40
  41 }
  42
  43 /* EOF */
  44