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);
102 /* Purge the log file if the max size is defined. */
104 fp = fopen(filename, "r");
108 filelen = fseek(fp, (off_t)0L, SEEK_END);
109 fseek(fp, (off_t)0L, SEEK_SET);
112 if (filelen >= maxsize)
119 /* Open the log file */
120 if ((fp = fopen(filename, "a+")) == NULL) {
121 fprintf(stderr, "warning: could not open log file "
122 "%s: %s\n", filename, strerror(errno));
123 fprintf(stderr, "warning: log messages will be displayed on "
129 /* Get the log type name */
130 for (np = silc_log_types; np->name; np++) {
131 if (np->type == type)
135 fprintf(fp, "[%s] [%s] %s\n", silc_get_time(), np->name, string);
142 /* Outputs the debug message to stderr. */
144 void silc_log_output_debug(char *file, char *function,
145 int line, char *string)
154 (*debug_cb)(file, function, line, string);
159 fprintf(stderr, "%s:%d: %s\n", function, line, string);
164 /* Hexdumps a message */
166 void silc_log_output_hexdump(char *file, char *function,
167 int line, void *data_in,
168 uint32 len, char *string)
172 unsigned char *data = (unsigned char *)data_in;
179 if (debug_hexdump_cb)
181 (*debug_hexdump_cb)(file, function, line, data_in, len, string);
186 fprintf(stderr, "%s:%d: %s\n", function, line, string);
196 if ((len - pos) < 16 && (len - pos <= len - off))
206 fprintf(stderr, "%08X ", k++ * 16);
208 for (i = 0; i < count; i++) {
209 fprintf(stderr, "%02X ", data[pos + i]);
211 if ((i + 1) % 4 == 0)
212 fprintf(stderr, " ");
215 if (count && count < 16) {
218 for (j = 0; j < 16 - count; j++) {
219 fprintf(stderr, " ");
221 if ((j + count + 1) % 4 == 0)
222 fprintf(stderr, " ");
226 for (i = 0; i < count; i++) {
229 if (data[pos] < 32 || data[pos] >= 127)
234 fprintf(stderr, "%c", ch);
239 fprintf(stderr, "\n");
248 void silc_log_set_files(char *info, uint32 info_size,
249 char *warning, uint32 warning_size,
250 char *error, uint32 error_size,
251 char *fatal, uint32 fatal_size)
253 log_info_file = info;
254 log_warning_file = warning;
255 log_error_file = error;
256 log_fatal_file = fatal;
258 log_info_size = info_size;
259 log_warning_size = warning_size;
260 log_error_size = error_size;
261 log_fatal_size = fatal_size;
264 /* Sets log callbacks */
266 void silc_log_set_callbacks(SilcLogCb info, SilcLogCb warning,
267 SilcLogCb error, SilcLogCb fatal)
270 warning_cb = warning;
275 /* Resets log callbacks */
277 void silc_log_reset_callbacks()
279 info_cb = warning_cb = error_cb = fatal_cb = NULL;
282 /* Sets debug callbacks */
284 void silc_log_set_debug_callbacks(SilcDebugCb debug,
285 SilcDebugHexdumpCb debug_hexdump)
288 debug_hexdump_cb = debug_hexdump;
291 /* Resets debug callbacks */
293 void silc_log_reset_debug_callbacks()
296 debug_hexdump_cb = NULL;