Retro68/gcc/newlib/libc/argz/argz_delete.c
2012-03-27 01:51:53 +02:00

42 lines
827 B
C

/* 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;
}