1/* 4.4BSD utility functions for error messages.
2 Copyright (C) 1995-2019 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 <http://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
41vwarnx (const char *format, __gnuc_va_list ap)
42{
43 flockfile (stderr);
44 __fxprintf (stderr, "%s: ", __progname);
45 if (format != NULL)
46 __vfxprintf (stderr, format, ap);
47 __fxprintf (stderr, "\n");
48 funlockfile (stderr);
49}
50libc_hidden_def (vwarnx)
51
52void
53vwarn (const char *format, __gnuc_va_list ap)
54{
55 int error = errno;
56
57 flockfile (stderr);
58 if (format != NULL)
59 {
60 __fxprintf (stderr, "%s: ", __progname);
61 __vfxprintf (stderr, format, ap);
62 __set_errno (error);
63 __fxprintf (stderr, ": %m\n");
64 }
65 else
66 {
67 __set_errno (error);
68 __fxprintf (stderr, "%s: %m\n", __progname);
69 }
70 funlockfile (stderr);
71}
72libc_hidden_def (vwarn)
73
74
75void
76warn (const char *format, ...)
77{
78 VA (vwarn (format, ap))
79}
80libc_hidden_def (warn)
81
82void
83warnx (const char *format, ...)
84{
85 VA (vwarnx (format, ap))
86}
87libc_hidden_def (warnx)
88
89void
90verr (int status, const char *format, __gnuc_va_list ap)
91{
92 vwarn (format, ap);
93 exit (status);
94}
95libc_hidden_def (verr)
96
97void
98verrx (int status, const char *format, __gnuc_va_list ap)
99{
100 vwarnx (format, ap);
101 exit (status);
102}
103libc_hidden_def (verrx)
104
105void
106err (int status, const char *format, ...)
107{
108 VA (verr (status, format, ap))
109}
110
111void
112errx (int status, const char *format, ...)
113{
114 VA (verrx (status, format, ap))
115}
116