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/*
errs.c
This file is part of GNU Anubis.
Copyright (C) 2001, 2002, 2003, 2004 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
GNU Anubis is released under the GPL with the additional exemption that
compiling, linking, and/or using OpenSSL is allowed.
*/
#include "headers.h"
#include "extern.h"
void
anubis_verror (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));
#ifdef HAVE_SYSLOG
if ((topt & T_DAEMON) && !(topt & T_FOREGROUND))
{
syslog (LOG_ERR | LOG_MAIL, "%s", msg);
if (options.ulogfile && options.uloglevel >= FAILS)
filelog (options.ulogfile, msg);
}
else
#endif /* HAVE_SYSLOG */
if (topt & T_FOREGROUND)
mprintf ("[%lu] %s", (unsigned long) getpid (), msg);
else
mprintf ("%s", msg);
}
}
void
anubis_error (int exit_code, int error_code, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
anubis_verror (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 (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 (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 */
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