1 0d6fb46a 2022-01-09 op /*
 2 0d6fb46a 2022-01-09 op  * Copyright (c) 2006 Nicholas Marriott <nicholas.marriott@gmail.com>
 3 0d6fb46a 2022-01-09 op  *
 4 0d6fb46a 2022-01-09 op  * Permission to use, copy, modify, and distribute this software for any
 5 0d6fb46a 2022-01-09 op  * purpose with or without fee is hereby granted, provided that the above
 6 0d6fb46a 2022-01-09 op  * copyright notice and this permission notice appear in all copies.
 7 0d6fb46a 2022-01-09 op  *
 8 0d6fb46a 2022-01-09 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 0d6fb46a 2022-01-09 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 0d6fb46a 2022-01-09 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 0d6fb46a 2022-01-09 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 0d6fb46a 2022-01-09 op  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
13 0d6fb46a 2022-01-09 op  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
14 0d6fb46a 2022-01-09 op  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 0d6fb46a 2022-01-09 op  */
16 0d6fb46a 2022-01-09 op 
17 0d6fb46a 2022-01-09 op #include <sys/types.h>
18 0d6fb46a 2022-01-09 op 
19 0d6fb46a 2022-01-09 op #include <stdarg.h>
20 0d6fb46a 2022-01-09 op #include <stdio.h>
21 0d6fb46a 2022-01-09 op #include <string.h>
22 0d6fb46a 2022-01-09 op #include <stdlib.h>
23 0d6fb46a 2022-01-09 op 
24 0d6fb46a 2022-01-09 op #include "compat.h"
25 0d6fb46a 2022-01-09 op 
26 0d6fb46a 2022-01-09 op int
27 0d6fb46a 2022-01-09 op asprintf(char **ret, const char *fmt, ...)
28 0d6fb46a 2022-01-09 op {
29 0d6fb46a 2022-01-09 op 	va_list	ap;
30 0d6fb46a 2022-01-09 op 	int	n;
31 0d6fb46a 2022-01-09 op 
32 0d6fb46a 2022-01-09 op 	va_start(ap, fmt);
33 0d6fb46a 2022-01-09 op 	n = vasprintf(ret, fmt, ap);
34 0d6fb46a 2022-01-09 op 	va_end(ap);
35 0d6fb46a 2022-01-09 op 
36 0d6fb46a 2022-01-09 op 	return (n);
37 0d6fb46a 2022-01-09 op }
38 0d6fb46a 2022-01-09 op 
39 0d6fb46a 2022-01-09 op int
40 0d6fb46a 2022-01-09 op vasprintf(char **ret, const char *fmt, va_list ap)
41 0d6fb46a 2022-01-09 op {
42 0d6fb46a 2022-01-09 op 	int	 n;
43 0d6fb46a 2022-01-09 op 	va_list  ap2;
44 0d6fb46a 2022-01-09 op 
45 0d6fb46a 2022-01-09 op 	va_copy(ap2, ap);
46 0d6fb46a 2022-01-09 op 
47 0d6fb46a 2022-01-09 op 	if ((n = vsnprintf(NULL, 0, fmt, ap)) < 0)
48 0d6fb46a 2022-01-09 op 		goto error;
49 0d6fb46a 2022-01-09 op 
50 0d6fb46a 2022-01-09 op 	if ((*ret = malloc(n + 1)) == NULL)
51 0d6fb46a 2022-01-09 op 		goto error;
52 0d6fb46a 2022-01-09 op 	if ((n = vsnprintf(*ret, n + 1, fmt, ap2)) < 0) {
53 0d6fb46a 2022-01-09 op 		free(*ret);
54 0d6fb46a 2022-01-09 op 		goto error;
55 0d6fb46a 2022-01-09 op 	}
56 0d6fb46a 2022-01-09 op 	va_end(ap2);
57 0d6fb46a 2022-01-09 op 
58 0d6fb46a 2022-01-09 op 	return (n);
59 0d6fb46a 2022-01-09 op 
60 0d6fb46a 2022-01-09 op error:
61 0d6fb46a 2022-01-09 op 	va_end(ap2);
62 0d6fb46a 2022-01-09 op 	*ret = NULL;
63 0d6fb46a 2022-01-09 op 	return (-1);
64 0d6fb46a 2022-01-09 op }