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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [newlib/] [libc/] [argz/] [argz_delete.c] - Rev 855

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/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * is freely granted, provided that this notice is preserved.
 */
 
#include <argz.h>
#include <errno.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
 
error_t
_DEFUN (argz_delete, (argz, argz_len, entry),
       char **argz _AND
       size_t *argz_len _AND
       char *entry)
{
  int len = 0;
  char *moveto = entry;
 
  if (entry)
    {
      len = strlen(entry) + 1;
      entry += len;
 
      memmove(moveto, entry, *argz + *argz_len - entry);
 
      *argz_len -= len;
 
      if(!(*argz = (char *)realloc(*argz, *argz_len)))
        return ENOMEM;
 
      if (*argz_len <= 0)
        {
          free(*argz);
          *argz = NULL;
        }
    }
  return 0;
}
 

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