1/* MiniDLNA media server 2 * Copyright (C) 2008-2010 NETGEAR, Inc. All Rights Reserved. 3 * 4 * This file is part of MiniDLNA. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19 */ 20#include "config.h" 21 22#include <stdlib.h> 23#include <stdio.h> 24#include <stdarg.h> 25#include <string.h> 26#include <time.h> 27 28#include "upnpglobalvars.h" 29#include "log.h" 30 31static FILE *log_fp = NULL; 32static const int _default_log_level = E_WARN; 33int log_level[L_MAX]; 34 35const char *facility_name[] = { 36 "general", 37 "artwork", 38 "database", 39 "inotify", 40 "scanner", 41 "metadata", 42 "http", 43 "ssdp", 44 "tivo", 45 0 46}; 47 48const char *level_name[] = { 49 "off", // E_OFF 50 "fatal", // E_FATAL 51 "error", // E_ERROR 52 "warn", // E_WARN 53 "info", // E_INFO 54 "debug", // E_DEBUG 55 "maxdebug", // E_MAXDEBUG 56 0 57}; 58 59void 60log_close(void) 61{ 62 if (log_fp) 63 fclose(log_fp); 64} 65 66int find_matching_name(const char* str, const char* names[]) { 67 if (str == NULL) return -1; 68 69 const char* start = strpbrk(str, ",="); 70 int level, c = (start != NULL) ? start - str : strlen(str); 71 for (level = 0; names[level] != 0; level++) { 72 if (!(strncasecmp(names[level], str, c))) 73 return level; 74 } 75 return -1; 76} 77 78int 79log_init(const char *fname, const char *debug) 80{ 81 int i; 82 FILE *fp; 83 84 int level = find_matching_name(debug, level_name); 85 int default_log_level = (level == -1) ? _default_log_level : level; 86 87 for (i=0; i<L_MAX; i++) 88 log_level[i] = default_log_level; 89 90 if (debug) 91 { 92 const char *rhs, *lhs, *nlhs; 93 int level, facility; 94 95 rhs = nlhs = debug; 96 while (rhs && (rhs = strchr(rhs, '='))) { 97 rhs++; 98 level = find_matching_name(rhs, level_name); 99 if (level == -1) { 100 DPRINTF(E_WARN, L_GENERAL, "unknown level in debug string: %s", debug); 101 continue; 102 } 103 104 lhs = nlhs; 105 rhs = nlhs = strchr(rhs, ','); 106 do { 107 if (*lhs==',') lhs++; 108 facility = find_matching_name(lhs, facility_name); 109 if (facility == -1) { 110 DPRINTF(E_WARN, L_GENERAL, "unknown debug facility in debug string: %s", debug); 111 } else { 112 log_level[facility] = level; 113 } 114 115 lhs = strpbrk(lhs, ",="); 116 } while (*lhs && *lhs==','); 117 } 118 } 119 120 if (!fname) // use default i.e. stdout 121 return 0; 122 123 if (!(fp = fopen(fname, "a"))) 124 return 1; 125 log_fp = fp; 126 return 0; 127} 128 129void 130log_err(int level, enum _log_facility facility, char *fname, int lineno, char *fmt, ...) 131{ 132 va_list ap; 133 134 if (level && level>log_level[facility] && level>E_FATAL) 135 return; 136 137 if (!log_fp) 138 log_fp = stdout; 139 140 // timestamp 141 if (!GETFLAG(SYSTEMD_MASK)) 142 { 143 time_t t; 144 struct tm *tm; 145 t = time(NULL); 146 tm = localtime(&t); 147 fprintf(log_fp, "[%04d/%02d/%02d %02d:%02d:%02d] ", 148 tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday, 149 tm->tm_hour, tm->tm_min, tm->tm_sec); 150 } 151 152 if (level) 153 fprintf(log_fp, "%s:%d: %s: ", fname, lineno, level_name[level]); 154 else 155 fprintf(log_fp, "%s:%d: ", fname, lineno); 156 157 // user log 158 va_start(ap, fmt); 159 if (vfprintf(log_fp, fmt, ap) == -1) 160 { 161 va_end(ap); 162 return; 163 } 164 va_end(ap); 165 166 fflush(log_fp); 167 168 if (level==E_FATAL) 169 exit(-1); 170 171 return; 172} 173