|  | /* Routines for dealing with '\0' separated arg vectors. | 
|  | Copyright (C) 1995-2016 Free Software Foundation, Inc. | 
|  | This file is part of the GNU C Library. | 
|  | Written by Miles Bader <miles@gnu.ai.mit.edu> | 
|  |  | 
|  | The GNU C Library is free software; you can redistribute it and/or | 
|  | modify it under the terms of the GNU Lesser General Public | 
|  | License as published by the Free Software Foundation; either | 
|  | version 2.1 of the License, or (at your option) any later version. | 
|  |  | 
|  | The GNU C Library is distributed in the hope that it will be useful, | 
|  | but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU | 
|  | Lesser General Public License for more details. | 
|  |  | 
|  | You should have received a copy of the GNU Lesser General Public | 
|  | License along with the GNU C Library; if not, see | 
|  | <http://www.gnu.org/licenses/>.  */ | 
|  |  | 
|  | #include <argz.h> | 
|  | #include <string.h> | 
|  | #include <stdlib.h> | 
|  |  | 
|  | /* Add BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN.  */ | 
|  | error_t | 
|  | __argz_append (char **argz, size_t *argz_len, const char *buf, size_t buf_len) | 
|  | { | 
|  | size_t new_argz_len = *argz_len + buf_len; | 
|  | char *new_argz = realloc (*argz, new_argz_len); | 
|  | if (new_argz) | 
|  | { | 
|  | memcpy (new_argz + *argz_len, buf, buf_len); | 
|  | *argz = new_argz; | 
|  | *argz_len = new_argz_len; | 
|  | return 0; | 
|  | } | 
|  | else | 
|  | return ENOMEM; | 
|  | } | 
|  | weak_alias (__argz_append, argz_append) | 
|  |  | 
|  | /* Add STR to the argz vector in ARGZ & ARGZ_LEN.  This should be moved into | 
|  | argz.c in libshouldbelibc.  */ | 
|  | error_t | 
|  | __argz_add (char **argz, size_t *argz_len, const char *str) | 
|  | { | 
|  | return __argz_append (argz, argz_len, str, strlen (str) + 1); | 
|  | } | 
|  | weak_alias (__argz_add, argz_add) |