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103 lines
2.8 KiB
103 lines
2.8 KiB
/*************************************************************************** |
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* Copyright (C) 06/2006 by Olaf Rempel * |
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* razzor@kopf-tisch.de * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the * |
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* Free Software Foundation, Inc., * |
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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***************************************************************************/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <time.h> |
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#include <stdarg.h> |
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#include <errno.h> |
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#include <string.h> |
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#include "logging.h" |
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#define BUFSIZE 8192 |
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static FILE *log_fd = NULL; |
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static char *buffer = NULL; |
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void log_print(int prio, const char *fmt, ...) |
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{ |
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va_list az; |
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int len; |
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if (buffer == NULL) { |
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buffer = malloc(BUFSIZE); |
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if (buffer == NULL) { |
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fprintf(stderr, "log_print: out of memory\nBailing out!\n"); |
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exit(-1); |
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} |
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} |
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va_start(az, fmt); |
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len = vsnprintf(buffer, BUFSIZE, fmt, az); |
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va_end(az); |
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if (len < 0 || len >= BUFSIZE) { |
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log_print(LOG_ERROR, "log_print: arguments too long"); |
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errno = 0; |
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return; |
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} |
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if (errno) { |
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strncpy(buffer + len, ": ", BUFSIZE - len); |
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len += 2; |
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strncpy(buffer + len, strerror(errno), BUFSIZE - len); |
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} |
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if (log_fd) { |
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char tbuf[64]; |
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time_t tzgr; |
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time(&tzgr); |
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strftime(tbuf, sizeof(tbuf), "%b %d %H:%M:%S :", localtime(&tzgr)); |
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fprintf(log_fd, "%s %s\n", tbuf, buffer); |
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fflush(log_fd); |
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} else { |
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fprintf(stderr, "%s\n", buffer); |
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} |
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errno = 0; |
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} |
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static void log_close(void) |
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{ |
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if (buffer) |
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free(buffer); |
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fclose(log_fd); |
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} |
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int log_init(char *logfile) |
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{ |
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log_fd = fopen(logfile, "a"); |
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if (log_fd == NULL) { |
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log_print(LOG_ERROR, "log_open('%s'): %s", logfile); |
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return 0; |
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} |
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if (atexit(log_close) != 0) { |
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log_print(LOG_ERROR, "log_open(): atexit()"); |
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return 0; |
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} |
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log_print(LOG_EVERYTIME, "=========================="); |
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return 1; |
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}
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