1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*
errs.c
This file is part of GNU Anubis.
Copyright (C) 2001-2014 The Anubis Team.
GNU Anubis is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
GNU Anubis is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with GNU Anubis. If not, see <http://www.gnu.org/licenses/>.
*/
#include "headers.h"
#include "extern.h"
void
anubis_verror_log (int prio, int error_code, const char *pfx,
const char *fmt, va_list ap)
{
if (options.termlevel != SILENT)
{
int n;
char msg[LINEBUFFER + 1];
size_t size = sizeof msg;
if (pfx)
{
n = snprintf (msg, size, "%s: ", pfx);
/* On some older systems *snprintf calls return -1 if the output
was truncated */
if (n < 0)
size = 0;
else
size -= n;
}
n = vsnprintf (msg, size, fmt, ap);
if (error_code && (n >= 0 && n < sizeof msg))
snprintf (msg + n, size - n, ": %s", strerror (error_code));
if ((topt & T_DAEMON) && !(topt & T_FOREGROUND))
{
syslog (prio, "%s", msg);
if (options.ulogfile && options.uloglevel >= FAILS)
filelog (options.ulogfile, msg);
}
else if (topt & T_FOREGROUND)
mprintf ("[%lu] %s", (unsigned long) getpid (), msg);
else
mprintf ("%s", msg);
}
}
void
anubis_verror (int error_code, const char *pfx, const char *fmt, va_list ap)
{
return anubis_verror_log (LOG_ERR, error_code, pfx, fmt, ap);
}
void
anubis_error (int exit_code, int error_code, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
anubis_verror_log (LOG_ERR, error_code, NULL, fmt, ap);
va_end (ap);
if (exit_code == EXIT_ABORT)
abort ();
else if (exit_code)
quit (exit_code);
}
void
anubis_warning (int error_code, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
anubis_verror_log (LOG_WARNING, error_code, _("warning"), fmt, ap);
va_end (ap);
}
void
socket_error (const char *msg)
{
if (msg)
anubis_error (EXIT_FAILURE, 0, _("Could not write to socket: %s"), msg);
else
anubis_error (EXIT_FAILURE, errno, _("Could not write to socket"));
}
void
hostname_error (const char *host)
{
if (h_errno == 0)
return;
if (h_errno == HOST_NOT_FOUND)
anubis_error (EXIT_FAILURE, 0, _("Unknown host %s."), host);
else if (h_errno == NO_ADDRESS)
anubis_error (EXIT_FAILURE, 0,
_("%s: host name is valid but does not have an IP address."),
host);
else if (h_errno == NO_RECOVERY)
anubis_error (EXIT_FAILURE, 0,
_("%s: unrecoverable name server error occured."), host);
else if (h_errno == TRY_AGAIN)
anubis_error (EXIT_FAILURE, 0,
_("%s: a temporary name server error occured. Try again later."),
host);
else
anubis_error (EXIT_FAILURE, 0, _("%s: unknown DNS error %d."), host, h_errno);
}
/* EOF */
|