mirror of https://github.com/tmux/tmux.git
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* $Id: asprintf.c,v 1.2 2008-06-18 22:21:51 nicm Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2006 Nicholas Marriott <nicm@users.sourceforge.net>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
|
|
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
int
|
|
asprintf(char **ret, const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
int n;
|
|
|
|
va_start(ap, format);
|
|
n = vasprintf(ret, format, ap);
|
|
va_end(ap);
|
|
|
|
return (n);
|
|
}
|
|
|
|
int
|
|
vasprintf(char **ret, const char *format, va_list ap)
|
|
{
|
|
int n;
|
|
|
|
if ((n = vsnprintf(NULL, 0, format, ap)) < 0)
|
|
goto error;
|
|
|
|
*ret = xmalloc(n + 1);
|
|
if ((n = vsnprintf(*ret, n + 1, format, ap)) < 0) {
|
|
xfree(*ret);
|
|
goto error;
|
|
}
|
|
|
|
return (n);
|
|
|
|
error:
|
|
*ret = NULL;
|
|
return (-1);
|
|
}
|