Mercurial > projects > pwm

annotate compat/asprintf.c @ 26:5bdea77d0c1d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add pwm-clip utility for setting the X11 CLIPBOARD selection
author Guido Berhoerster <guido+pwm@berhoerster.name>
date Thu, 21 Sep 2017 09:45:59 +0200
parents a7e41e1a79c8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
1 /*
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
2 * Copyright (C) 2015 Guido Berhoerster <guido+pwm@berhoerster.name>
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
3 *
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
4 * Permission is hereby granted, free of charge, to any person obtaining
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
5 * a copy of this software and associated documentation files (the
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
6 * "Software"), to deal in the Software without restriction, including
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
7 * without limitation the rights to use, copy, modify, merge, publish,
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
8 * distribute, sublicense, and/or sell copies of the Software, and to
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
9 * permit persons to whom the Software is furnished to do so, subject to
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
10 * the following conditions:
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
11 *
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
12 * The above copyright notice and this permission notice shall be included
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
13 * in all copies or substantial portions of the Software.
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
14 *
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
22 */
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
23
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
24 #include <stdlib.h>
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
25 #include <stdio.h>
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
26 #include <string.h>
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
27 #include <errno.h>
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
28
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
29 #include "asprintf.h"
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
30
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
31 int
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
32 vasprintf(char **strp, const char *fmt, va_list args)
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
33 {
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
34 int len;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
35 va_list args_new;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
36 char *str;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
37
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
38 *strp = NULL;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
39 va_copy(args_new, args);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
40
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
41 len = vsnprintf(NULL, 0, fmt, args);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
42 if (len < 0) {
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
43 goto out;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
44 }
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
45
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
46 str = malloc(len + 1);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
47 if (str == NULL) {
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
48 goto out;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
49 }
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
50 len = vsnprintf(str, len + 1, fmt, args_new);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
51 if (len < 0) {
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
52 free(str);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
53 goto out;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
54 }
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
55 *strp = str;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
56 out:
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
57 va_end(args_new);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
58
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
59 return (len);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
60 }
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
61
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
62 int
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
63 asprintf(char **strp, const char *fmt, ...)
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
64 {
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
65 int len;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
66 va_list args;
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
67
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
68 va_start(args, fmt);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
69 len = vasprintf(strp, fmt, args);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
70 va_end(args);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
71
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
72 return (len);
a7e41e1a79c8 Initial revision
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
73 }