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;
42 unsigned int log_info_size;
43 unsigned int log_warning_size;
44 unsigned int log_error_size;
45 unsigned int 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, unsigned int 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)
113 /* Open the log file */
114 if ((fp = fopen(filename, "a+")) == NULL) {
115 fprintf(stderr, "warning: could not open log file "
116 "%s: %s\n", filename, strerror(errno));
117 fprintf(stderr, "warning: log messages will be displayed on the screen\n");
121 /* Get the log type name */
122 for(np = silc_log_types; np->name; np++) {
123 if (np->type == type)
127 fprintf(fp, "[%s] [%s] %s\n", silc_get_time(), np->name, string);
133 /* Outputs the debug message to stderr. */
135 void silc_log_output_debug(char *file, char *function,
136 int line, char *string)
145 (*debug_cb)(file, function, line, string);
150 fprintf(stderr, "%s:%d: %s\n", function, line, string);
155 /* Hexdumps a message */
157 void silc_log_output_hexdump(char *file, char *function,
158 int line, void *data_in,
159 unsigned int len, char *string)
163 unsigned char *data = (unsigned char *)data_in;
170 if (debug_hexdump_cb)
172 (*debug_hexdump_cb)(file, function, line, data_in, len, string);
177 fprintf(stderr, "%s:%d: %s\n", function, line, string);
187 if ((len - pos) < 16 && (len - pos <= len - off))
197 fprintf(stderr, "%08X ", k++ * 16);
199 for (i = 0; i < count; i++) {
200 fprintf(stderr, "%02X ", data[pos + i]);
202 if ((i + 1) % 4 == 0)
203 fprintf(stderr, " ");
206 if (count && count < 16) {
209 for (j = 0; j < 16 - count; j++) {
210 fprintf(stderr, " ");
212 if ((j + count + 1) % 4 == 0)
213 fprintf(stderr, " ");
217 for (i = 0; i < count; i++) {
220 if (data[pos] < 32 || data[pos] >= 127)
225 fprintf(stderr, "%c", ch);
230 fprintf(stderr, "\n");
239 void silc_log_set_files(char *info, unsigned int info_size,
240 char *warning, unsigned int warning_size,
241 char *error, unsigned int error_size,
242 char *fatal, unsigned int fatal_size)
244 log_info_file = info;
245 log_warning_file = warning;
246 log_error_file = error;
247 log_fatal_file = fatal;
249 log_info_size = info_size;
250 log_warning_size = warning_size;
251 log_error_size = error_size;
252 log_fatal_size = fatal_size;
255 /* Sets log callbacks */
257 void silc_log_set_callbacks(SilcLogCb info, SilcLogCb warning,
258 SilcLogCb error, SilcLogCb fatal)
261 warning_cb = warning;
266 /* Resets log callbacks */
268 void silc_log_reset_callbacks()
270 info_cb = warning_cb = error_cb = fatal_cb = NULL;
273 /* Sets debug callbacks */
275 void silc_log_set_debug_callbacks(SilcDebugCb debug,
276 SilcDebugHexdumpCb debug_hexdump)
279 debug_hexdump_cb = debug_hexdump;
282 /* Resets debug callbacks */
284 void silc_log_reset_debug_callbacks()
287 debug_hexdump_cb = NULL;