5 Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
7 Copyright (C) 1997 - 2000 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
22 #include "silcincludes.h"
24 /* Set TRUE/FALSE to enable/disable debugging */
25 int silc_debug = FALSE;
27 /* SILC Log name strings. These strings are printed to the log file. */
28 const SilcLogTypeName silc_log_types[] =
30 { "Info", SILC_LOG_INFO },
31 { "Warning", SILC_LOG_WARNING },
32 { "Error", SILC_LOG_ERROR },
33 { "Fatal", SILC_LOG_FATAL },
39 char *log_warning_file;
43 uint32 log_warning_size;
44 uint32 log_error_size;
45 uint32 log_fatal_size;
47 /* Log callbacks. If these are set by the application these are used
48 instead of the default functions in this file. */
49 static SilcLogCb info_cb = NULL;
50 static SilcLogCb warning_cb = NULL;
51 static SilcLogCb error_cb = NULL;
52 static SilcLogCb fatal_cb = NULL;
54 /* Debug callbacks. If set these are used instead of default ones. */
55 static SilcDebugCb debug_cb = NULL;
56 static SilcDebugHexdumpCb debug_hexdump_cb = NULL;
58 /* Outputs the log message to what ever log file selected. */
60 void silc_log_output(const char *filename, uint32 maxsize,
61 SilcLogType type, char *string)
64 const SilcLogTypeName *np;
75 case SILC_LOG_WARNING:
77 (*warning_cb)(string);
98 /* Purge the log file if the max size is defined. */
100 fp = fopen(filename, "r");
104 filelen = fseek(fp, (off_t)0L, SEEK_END);
105 fseek(fp, (off_t)0L, SEEK_SET);
108 if (filelen >= maxsize)
115 /* Open the log file */
116 if ((fp = fopen(filename, "a+")) == NULL) {
117 fprintf(stderr, "warning: could not open log file "
118 "%s: %s\n", filename, strerror(errno));
119 fprintf(stderr, "warning: log messages will be displayed on the screen\n");
123 /* Get the log type name */
124 for(np = silc_log_types; np->name; np++) {
125 if (np->type == type)
129 fprintf(fp, "[%s] [%s] %s\n", silc_get_time(), np->name, string);
136 /* Outputs the debug message to stderr. */
138 void silc_log_output_debug(char *file, char *function,
139 int line, char *string)
148 (*debug_cb)(file, function, line, string);
153 fprintf(stderr, "%s:%d: %s\n", function, line, string);
158 /* Hexdumps a message */
160 void silc_log_output_hexdump(char *file, char *function,
161 int line, void *data_in,
162 uint32 len, char *string)
166 unsigned char *data = (unsigned char *)data_in;
173 if (debug_hexdump_cb)
175 (*debug_hexdump_cb)(file, function, line, data_in, len, string);
180 fprintf(stderr, "%s:%d: %s\n", function, line, string);
190 if ((len - pos) < 16 && (len - pos <= len - off))
200 fprintf(stderr, "%08X ", k++ * 16);
202 for (i = 0; i < count; i++) {
203 fprintf(stderr, "%02X ", data[pos + i]);
205 if ((i + 1) % 4 == 0)
206 fprintf(stderr, " ");
209 if (count && count < 16) {
212 for (j = 0; j < 16 - count; j++) {
213 fprintf(stderr, " ");
215 if ((j + count + 1) % 4 == 0)
216 fprintf(stderr, " ");
220 for (i = 0; i < count; i++) {
223 if (data[pos] < 32 || data[pos] >= 127)
228 fprintf(stderr, "%c", ch);
233 fprintf(stderr, "\n");
242 void silc_log_set_files(char *info, uint32 info_size,
243 char *warning, uint32 warning_size,
244 char *error, uint32 error_size,
245 char *fatal, uint32 fatal_size)
247 log_info_file = info;
248 log_warning_file = warning;
249 log_error_file = error;
250 log_fatal_file = fatal;
252 log_info_size = info_size;
253 log_warning_size = warning_size;
254 log_error_size = error_size;
255 log_fatal_size = fatal_size;
258 /* Sets log callbacks */
260 void silc_log_set_callbacks(SilcLogCb info, SilcLogCb warning,
261 SilcLogCb error, SilcLogCb fatal)
264 warning_cb = warning;
269 /* Resets log callbacks */
271 void silc_log_reset_callbacks()
273 info_cb = warning_cb = error_cb = fatal_cb = NULL;
276 /* Sets debug callbacks */
278 void silc_log_set_debug_callbacks(SilcDebugCb debug,
279 SilcDebugHexdumpCb debug_hexdump)
282 debug_hexdump_cb = debug_hexdump;
285 /* Resets debug callbacks */
287 void silc_log_reset_debug_callbacks()
290 debug_hexdump_cb = NULL;