/* Copyright (C) 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <errno.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <syslog.h> #include "utmpd-private.h" /* This variable indicates if we have forked. If set, we log messages via the system logger. Otherwise we simply print the program name and the message to standard error. */ int forked = 0; /* Log error message MESSAGE, which is a printf-style format string with optional args. If ERRNUM is nonzero, also log its corresponding system error message. Exit with status STATUS if it is nonzero. */ void error (int status, int errnum, const char *message, ...) { va_list ap; char *buffer = NULL; va_start (ap, message); vasprintf (&buffer, message, ap); va_end (ap); if (forked) { if (errnum == 0) syslog (LOG_ERR, "%s", buffer); else syslog (LOG_ERR, "%s: %s", buffer, strerror (errnum)); } else { if (errnum == 0) fprintf (stderr, "%s: %s\n", program_invocation_name, buffer); else fprintf (stderr, "%s: %s: %s\n", program_invocation_name, buffer, strerror (errnum)); } if (buffer) free (buffer); if (status) exit (status); } /* Log warning message MESSAGE, which is a printf-style format string with optional args. If ERRNUM is nonzero, also log its corresponding system error message. */ void warning (int errnum, const char *message, ...) { va_list ap; char *buffer = NULL; va_start (ap, message); vasprintf (&buffer, message, ap); va_end (ap); if (forked) { if (errnum == 0) syslog (LOG_WARNING, "%s", buffer); else syslog (LOG_WARNING, "%s: %s", buffer, strerror (errnum)); } else { if (errnum == 0) printf ("%s: %s\n", program_invocation_name, buffer); else printf ("%s: %s: %s\n", program_invocation_name, buffer, strerror (errnum)); } if (buffer) free (buffer); }