1/* 4.4BSD utility functions for error messages.
2 Copyright (C) 1995-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <stdarg.h>
20#include <err.h>
21#include <stdlib.h>
22#include <errno.h>
23#include <string.h>
24#include <stdio.h>
25
26#include <wchar.h>
27#define flockfile(s) _IO_flockfile (s)
28#define funlockfile(s) _IO_funlockfile (s)
29
30extern char *__progname;
31
32#define VA(call) \
33{ \
34 va_list ap; \
35 va_start (ap, format); \
36 call; \
37 va_end (ap); \
38}
39
40void
41__vwarnx_internal (const char *format, __gnuc_va_list ap,
42 unsigned int mode_flags)
43{
44 flockfile (stderr);
45 __fxprintf (stderr, "%s: ", __progname);
46 if (format != NULL)
47 __vfxprintf (stderr, format, ap, mode_flags);
48 __fxprintf (stderr, "\n");
49 funlockfile (stderr);
50}
51
52void
53__vwarn_internal (const char *format, __gnuc_va_list ap,
54 unsigned int mode_flags)
55{
56 int error = errno;
57
58 flockfile (stderr);
59 if (format != NULL)
60 {
61 __fxprintf (stderr, "%s: ", __progname);
62 __vfxprintf (stderr, format, ap, mode_flags);
63 __set_errno (error);
64 __fxprintf (stderr, ": %m\n");
65 }
66 else
67 {
68 __set_errno (error);
69 __fxprintf (stderr, "%s: %m\n", __progname);
70 }
71 funlockfile (stderr);
72}
73
74void
75vwarn (const char *format, __gnuc_va_list ap)
76{
77 __vwarn_internal (format, ap, 0);
78}
79libc_hidden_def (vwarn)
80
81void
82vwarnx (const char *format, __gnuc_va_list ap)
83{
84 __vwarnx_internal (format, ap, 0);
85}
86libc_hidden_def (vwarnx)
87
88void
89warn (const char *format, ...)
90{
91 VA (vwarn (format, ap))
92}
93libc_hidden_def (warn)
94
95void
96warnx (const char *format, ...)
97{
98 VA (vwarnx (format, ap))
99}
100libc_hidden_def (warnx)
101
102void
103verr (int status, const char *format, __gnuc_va_list ap)
104{
105 vwarn (format, ap);
106 exit (status);
107}
108libc_hidden_def (verr)
109
110void
111verrx (int status, const char *format, __gnuc_va_list ap)
112{
113 vwarnx (format, ap);
114 exit (status);
115}
116libc_hidden_def (verrx)
117
118void
119err (int status, const char *format, ...)
120{
121 VA (verr (status, format, ap))
122}
123
124void
125errx (int status, const char *format, ...)
126{
127 VA (verrx (status, format, ap))
128}
129