glibc/string/argz-append.c
Roland McGrath 392d7920cd Mon Apr 29 00:11:59 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* errno.h [!__error_t_defined] (error_t): New type.
	* sysdeps/mach/hurd/errnos.awk: #define __error_t_defined after the
	typedef in errnos.h.

	* string/envz.c, string/envz.h: New files.
	* string/argz.h, string/argz-append.c, string/argz-count.c,
	string/argz-create.c, string/argz-delete.c, string/argz-extract.c,
	string/argz-insert.c, string/argz-stringify.c: New files.
	* string/Makefile (routines): Add envz, argz-*.
	(headers): Add argz.h, envz.h.
1996-04-29 05:21:53 +00:00

51 lines
1.6 KiB
C

/* Routines for dealing with '\0' separated arg vectors.
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#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)