blob: 413e1ab2653d13aa19513beb59712d0add59c48d [file] [log] [blame]
yuezonghe824eb0c2024-06-27 02:32:26 -07001/* 4.4BSD utility functions for error messages.
2 Copyright (C) 1995,1996,1997,1998,1999,2003 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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
19
20#ifndef _ERR_H
21#define _ERR_H 1
22
23#include <features.h>
24
25#define __need___va_list
26#include <stdarg.h>
27#ifndef __GNUC_VA_LIST
28# define __gnuc_va_list __ptr_t
29#endif
30
31__BEGIN_DECLS
32
33/* Print "program: ", FORMAT, ": ", the standard error string for errno,
34 and a newline, on stderr. */
35extern void warn (__const char *__format, ...)
36 __attribute__ ((__format__ (__printf__, 1, 2)));
37extern void vwarn (__const char *__format, __gnuc_va_list)
38 __attribute__ ((__format__ (__printf__, 1, 0)));
39libc_hidden_proto(vwarn)
40
41/* Likewise, but without ": " and the standard error string. */
42extern void warnx (__const char *__format, ...)
43 __attribute__ ((__format__ (__printf__, 1, 2)));
44extern void vwarnx (__const char *__format, __gnuc_va_list)
45 __attribute__ ((__format__ (__printf__, 1, 0)));
46libc_hidden_proto(vwarnx)
47
48/* Likewise, and then exit with STATUS. */
49extern void err (int __status, __const char *__format, ...)
50 __attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
51extern void verr (int __status, __const char *__format, __gnuc_va_list)
52 __attribute__ ((__noreturn__, __format__ (__printf__, 2, 0)));
53libc_hidden_proto(verr)
54extern void errx (int __status, __const char *__format, ...)
55 __attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
56extern void verrx (int __status, __const char *, __gnuc_va_list)
57 __attribute__ ((__noreturn__, __format__ (__printf__, 2, 0)));
58libc_hidden_proto(verrx)
59
60__END_DECLS
61
62#endif /* err.h */