1 /* 4.4BSD utility functions for error messages.
2 Copyright (C) 1995-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
27 #define flockfile(s) _IO_flockfile (s)
28 #define funlockfile(s) _IO_funlockfile (s)
30 extern char *__progname;
35 va_start (ap, format); \
41 convert_and_print (const char *format, __gnuc_va_list ap)
43 #define ALLOCA_LIMIT 2000
45 wchar_t *wformat = NULL;
53 len = strlen (format) + 1;
57 if (len < ALLOCA_LIMIT)
58 wformat = (wchar_t *) alloca (len * sizeof (wchar_t));
61 if (wformat != NULL && len / 2 < ALLOCA_LIMIT)
64 wformat = (wchar_t *) realloc (wformat, len * sizeof (wchar_t));
68 fputws_unlocked (L"out of memory\n", stderr);
73 memset (&st, '\0', sizeof (st));
76 while ((res = __mbsrtowcs (wformat, &tmp, len, &st)) == len);
78 if (res == (size_t) -1)
79 /* The string cannot be converted. */
80 wformat = (wchar_t *) L"???";
82 __vfwprintf (stderr, wformat, ap);
86 vwarnx (const char *format, __gnuc_va_list ap)
89 if (_IO_fwide (stderr, 0) > 0)
91 __fwprintf (stderr, L"%s: ", __progname);
92 convert_and_print (format, ap);
93 putwc_unlocked (L'\n', stderr);
97 fprintf (stderr, "%s: ", __progname);
99 vfprintf (stderr, format, ap);
100 putc_unlocked ('\n', stderr);
102 funlockfile (stderr);
104 libc_hidden_def (vwarnx)
107 vwarn (const char *format, __gnuc_va_list ap)
112 if (_IO_fwide (stderr, 0) > 0)
114 __fwprintf (stderr, L"%s: ", __progname);
117 convert_and_print (format, ap);
118 fputws_unlocked (L": ", stderr);
121 __fwprintf (stderr, L"%m\n");
125 fprintf (stderr, "%s: ", __progname);
128 vfprintf (stderr, format, ap);
129 fputs_unlocked (": ", stderr);
132 fprintf (stderr, "%m\n");
134 funlockfile (stderr);
136 libc_hidden_def (vwarn)
140 warn (const char *format, ...)
142 VA (vwarn (format, ap))
144 libc_hidden_def (warn)
147 warnx (const char *format, ...)
149 VA (vwarnx (format, ap))
151 libc_hidden_def (warnx)
154 verr (int status, const char *format, __gnuc_va_list ap)
159 libc_hidden_def (verr)
162 verrx (int status, const char *format, __gnuc_va_list ap)
167 libc_hidden_def (verrx)
170 err (int status, const char *format, ...)
172 VA (verr (status, format, ap))
176 errx (int status, const char *format, ...)
178 VA (verrx (status, format, ap))