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.
23 * Revision 1.4 2000/07/17 16:44:57 priikone
24 * Buffer overflow bug fixe in silc_log_format.
26 * Revision 1.3 2000/07/05 06:06:35 priikone
27 * Global cosmetic change.
29 * Revision 1.2 2000/07/03 05:53:58 priikone
30 * Fixed file purging bug. The purging should work now ok.
32 * Revision 1.1.1.1 2000/06/27 11:36:55 priikone
33 * Imported from internal CVS/Added Log headers.
38 #include "silcincludes.h"
40 /* SILC Log name strings. These strings are printed to the log file. */
41 const SilcLogTypeName silc_log_types[] =
43 { "Info", SILC_LOG_INFO },
44 { "Warning", SILC_LOG_WARNING },
45 { "Error", SILC_LOG_ERROR },
46 { "Fatal", SILC_LOG_FATAL },
52 char *log_warning_file;
55 unsigned int log_info_size;
56 unsigned int log_warning_size;
57 unsigned int log_error_size;
58 unsigned int log_fatal_size;
60 /* Formats arguments to a string and returns it after allocating memory
61 for it. It must be remembered to free it later. */
63 char *silc_log_format(char *fmt, ...)
66 static char buf[8192];
68 memset(buf, 0, sizeof(buf);
70 vsnprintf(buf, sizeof(buf) - 1, fmt, args);
76 /* Outputs the log message to what ever log file selected. */
78 void silc_log_output(const char *filename, unsigned int maxsize,
79 SilcLogType type, char *string)
82 const SilcLogTypeName *np;
84 /* Purge the log file if the max size is defined. */
86 fp = fopen(filename, "r");
90 filelen = fseek(fp, (off_t)0L, SEEK_END);
91 fseek(fp, (off_t)0L, SEEK_SET);
94 if (filelen >= maxsize)
99 /* Open the log file */
100 if ((fp = fopen(filename, "a+")) == NULL) {
101 fprintf(stderr, "warning: could not open log file "
102 "%s: %s\n", filename, strerror(errno));
103 fprintf(stderr, "warning: log messages will be displayed on the screen\n");
107 /* Get the log type name */
108 for(np = silc_log_types; np->name; np++) {
109 if (np->type == type)
113 fprintf(fp, "[%s] [%s] %s\n", silc_get_time(), np->name, string);
119 /* Outputs the debug message to stderr. */
121 void silc_log_output_debug(char *file, char *function,
122 int line, char *string)
124 /* fprintf(stderr, "%s:%s:%d: %s\n", file, function, line, string); */
125 fprintf(stderr, "%s:%d: %s\n", function, line, string);
130 /* Hexdumps a message */
132 void silc_log_output_hexdump(char *file, char *function,
133 int line, void *data_in,
134 unsigned int len, char *string)
138 unsigned char *data = (unsigned char *)data_in;
140 /* fprintf(stderr, "%s:%s:%d: %s\n", file, function, line, string); */
141 fprintf(stderr, "%s:%d: %s\n", function, line, string);
151 if ((len - pos) < 16 && (len - pos <= len - off))
161 fprintf(stderr, "%08X ", k++ * 16);
163 for (i = 0; i < count; i++) {
164 fprintf(stderr, "%02X ", data[pos + i]);
166 if ((i + 1) % 4 == 0)
167 fprintf(stderr, " ");
170 if (count && count < 16) {
173 for (j = 0; j < 16 - count; j++) {
174 fprintf(stderr, " ");
176 if ((j + count + 1) % 4 == 0)
177 fprintf(stderr, " ");
181 for (i = 0; i < count; i++) {
184 if (data[pos] < 32 || data[pos] >= 127)
189 fprintf(stderr, "%c", ch);
194 fprintf(stderr, "\n");
203 void silc_log_set_files(char *info, unsigned int info_size,
204 char *warning, unsigned int warning_size,
205 char *error, unsigned int error_size,
206 char *fatal, unsigned int fatal_size)
208 log_info_file = info;
209 log_warning_file = warning;
210 log_error_file = error;
211 log_fatal_file = fatal;
213 log_info_size = info_size;
214 log_warning_size = warning_size;
215 log_error_size = error_size;
216 log_fatal_size = fatal_size;