[apple/network_cmds.git] / telnetd.tproj / vasprintf.c

/*	$OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $	*/

/*
 * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#if defined(LIBC_RCS) && !defined(lint)
static char rcsid[] = "$FreeBSD: src/lib/libc/stdio/vasprintf.c,v 1.12 2001/01/24 13:00:47 deischen Exp $";
#endif /* LIBC_RCS and not lint */

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>

int
vasprintf(str, fmt, ap)
	char **str;
	const char *fmt;
	va_list ap;
{
	int ret;
	FILE f;

	f._file = -1;
	f._flags = __SWR | __SSTR ;
	f._bf._base = f._p = (unsigned char *)malloc(128);
	if (f._bf._base == NULL) {
		*str = NULL;
		errno = ENOMEM;
		return (-1);
	}
	f._bf._size = f._w = 127;		/* Leave room for the NULL */
	ret = vfprintf(&f, fmt, ap);
	*f._p = '\0';
	f._bf._base = realloc(f._bf._base, f._bf._size + 1);
	if (f._bf._base == NULL) {
		errno = ENOMEM;
		ret = -1;
	}
	*str = (char *)f._bf._base;
	return (ret);
}
Commit	Line	Data
8052502f A	1	/* $OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $ */
	2
	3	/*
	4	* Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. The name of the author may not be used to endorse or promote products
	16	* derived from this software without specific prior written permission.
	17	*
	18	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	19	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	20	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
	21	* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	22	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	23	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
	24	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	25	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
	26	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
	27	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	28	*/
	29
	30	#if defined(LIBC_RCS) && !defined(lint)
	31	static char rcsid[] = "$FreeBSD: src/lib/libc/stdio/vasprintf.c,v 1.12 2001/01/24 13:00:47 deischen Exp $";
	32	#endif /* LIBC_RCS and not lint */
	33
	34	#include <stdio.h>
	35	#include <stdlib.h>
2b484d24	36	#include <stdarg.h>
8052502f A	37	#include <errno.h>
	38
	39	int
	40	vasprintf(str, fmt, ap)
	41	char **str;
	42	const char *fmt;
2b484d24	43	va_list ap;
8052502f A	44	{
	45	int ret;
	46	FILE f;
	47
	48	f._file = -1;
	49	f._flags = __SWR \| __SSTR ;
	50	f._bf._base = f._p = (unsigned char *)malloc(128);
	51	if (f._bf._base == NULL) {
	52	*str = NULL;
	53	errno = ENOMEM;
	54	return (-1);
	55	}
	56	f._bf._size = f._w = 127; /* Leave room for the NULL */
	57	ret = vfprintf(&f, fmt, ap);
	58	*f._p = '\0';
	59	f._bf._base = realloc(f._bf._base, f._bf._size + 1);
	60	if (f._bf._base == NULL) {
	61	errno = ENOMEM;
	62	ret = -1;
	63	}
	64	str = (char )f._bf._base;
	65	return (ret);
	66	}