1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
25 #include "configuration.h"
35 static FILE* log_output;
38 static void *privData;
39 static logCallback callback;
41 void log_setCallback(logCallback c, void *p)
47 static char *log_strings[4] =
55 void log_printf(enum log_levels level, const char *file, int line, const char *function, const char *format, ...)
62 if (level > debug_level)
65 va_start(args, format);
66 vsnprintf(buffer, 512, format, args);
68 char *f = strrchr(file, '/');
72 fprintf(log_output, "%s %d %ld %s:%d %s(): %s\n", log_strings[level], count, time(NULL), file, line, function, buffer);
77 /* Never forward LOG_DEBUG, too verbose and they can be found in the log if need be */
78 if (callback && (level <= LOG_INFO))
80 va_start(args, format);
81 callback(privData, file, line, function, format, args);
86 /* change the current debug level on the fly
89 * 2: + INFORMATIONAL MSGS
92 int handle_debug_level_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
95 command_print(cmd_ctx, "debug_level: %i", debug_level);
98 debug_level = strtoul(args[0], NULL, 0);
109 int handle_log_output_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
113 FILE* file = fopen(args[0], "w");
124 int log_register_commands(struct command_context_s *cmd_ctx)
126 register_command(cmd_ctx, NULL, "log_output", handle_log_output_command,
127 COMMAND_ANY, "redirect logging to <file> (default: stderr)");
128 register_command(cmd_ctx, NULL, "debug_level", handle_debug_level_command,
129 COMMAND_ANY, "adjust debug level <0-3>");
134 int log_init(struct command_context_s *cmd_ctx)
136 /* set defaults for daemon configuration, if not set by cmdline or cfgfile */
137 if (debug_level == -1)
138 debug_level = LOG_INFO;
140 if (log_output == NULL)
148 int set_log_output(struct command_context_s *cmd_ctx, FILE *output)
154 /* return allocated string w/printf() result */
155 char *allocPrintf(const char *fmt, va_list ap)
159 /* start by 0 to exercise all the code paths. Need minimum 2 bytes to
160 * fit 1 char and 0 terminator. */
165 if ((string == NULL) || (!first))
169 string = realloc(string, size);
179 ret = vsnprintf(string, size, fmt, ap);
180 /* NB! The result of the vsnprintf() might be an *EMPTY* string! */
181 if ((ret >= 0) && ((ret + 1) < size))
185 /* there was just enough or not enough space, allocate more. */