2 This file is part of GNUnet.
3 Copyright (C) 2006-2013 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
17 * @file util/common_logging.c
18 * @brief error handling API
19 * @author Christian Grothoff
22 #include "gnunet_crypto_lib.h"
23 #include "gnunet_disk_lib.h"
24 #include "gnunet_strings_lib.h"
29 * After how many milliseconds do we always print
30 * that "message X was repeated N times"? Use 12h.
32 #define BULK_DELAY_THRESHOLD (12 * 60 * 60 * 1000LL * 1000LL)
35 * After how many repetitions do we always print
36 * that "message X was repeated N times"? (even if
37 * we have not yet reached the delay threshold)
39 #define BULK_REPEAT_THRESHOLD 1000
42 * How many characters do we use for matching of
45 #define BULK_TRACK_SIZE 256
48 * How many characters do we use for matching of
51 #define COMP_TRACK_SIZE 32
54 * How many characters can a date/time string
57 #define DATE_STR_SIZE 64
60 * How many log files to keep?
62 #define ROTATION_KEEP 3
66 * Assumed maximum path length (for the log file name).
73 * Linked list of active loggers.
78 * This is a linked list.
80 struct CustomLogger *next;
94 * The last "bulk" error message that we have been logging.
95 * Note that this message maybe truncated to the first BULK_TRACK_SIZE
96 * characters, in which case it is NOT 0-terminated!
98 static char last_bulk[BULK_TRACK_SIZE];
101 * Type of the last bulk message.
103 static enum GNUNET_ErrorType last_bulk_kind;
106 * Time of the last bulk error message (0 for none)
108 static struct GNUNET_TIME_Absolute last_bulk_time;
111 * Number of times that bulk message has been repeated since.
113 static unsigned int last_bulk_repeat;
116 * Component when the last bulk was logged. Will be 0-terminated.
118 static char last_bulk_comp[COMP_TRACK_SIZE + 1];
123 static char *component;
126 * Running component (without pid).
128 static char *component_nopid;
131 * Format string describing the name of the log file.
133 static char *log_file_name;
138 static enum GNUNET_ErrorType min_level;
141 * Linked list of our custom loggres.
143 static struct CustomLogger *loggers;
146 * Number of log calls to ignore.
148 static int skip_log = 0;
151 * File descriptor to use for "stderr", or NULL for none.
153 static FILE *GNUNET_stderr;
156 * Represents a single logging definition
161 * Component name regex
163 regex_t component_regex;
171 * Function name regex
173 regex_t function_regex;
176 * Lowest line at which this definition matches.
177 * Defaults to 0. Must be <= to_line.
182 * Highest line at which this definition matches.
183 * Defaults to INT_MAX. Must be >= from_line.
188 * Maximal log level allowed for calls that match this definition.
189 * Calls with higher log level will be disabled.
195 * 1 if this definition comes from GNUNET_FORCE_LOG, which means that it
196 * overrides any configuration options. 0 otherwise.
202 #if !defined(GNUNET_CULL_LOGGING)
204 * Dynamic array of logging definitions
206 static struct LogDef *logdefs;
209 * Allocated size of logdefs array (in units)
211 static int logdefs_size;
214 * The number of units used in logdefs array.
216 static int logdefs_len;
219 * #GNUNET_YES if GNUNET_LOG environment variable is already parsed.
221 static int gnunet_log_parsed;
224 * #GNUNET_YES if GNUNET_FORCE_LOG environment variable is already parsed.
226 static int gnunet_force_log_parsed;
229 * #GNUNET_YES if at least one definition with forced == 1 is available.
231 static int gnunet_force_log_present;
236 * Contains the number of performance counts per second.
238 static LARGE_INTEGER performance_frequency;
243 * Convert a textual description of a loglevel
244 * to the respective GNUNET_GE_KIND.
246 * @param log loglevel to parse
247 * @return GNUNET_GE_INVALID if log does not parse
249 static enum GNUNET_ErrorType
250 get_type (const char *log)
253 return GNUNET_ERROR_TYPE_UNSPECIFIED;
254 if (0 == strcasecmp (log, _("DEBUG")))
255 return GNUNET_ERROR_TYPE_DEBUG;
256 if (0 == strcasecmp (log, _("INFO")))
257 return GNUNET_ERROR_TYPE_INFO;
258 if (0 == strcasecmp (log, _("MESSAGE")))
259 return GNUNET_ERROR_TYPE_MESSAGE;
260 if (0 == strcasecmp (log, _("WARNING")))
261 return GNUNET_ERROR_TYPE_WARNING;
262 if (0 == strcasecmp (log, _("ERROR")))
263 return GNUNET_ERROR_TYPE_ERROR;
264 if (0 == strcasecmp (log, _("NONE")))
265 return GNUNET_ERROR_TYPE_NONE;
266 return GNUNET_ERROR_TYPE_INVALID;
271 * Abort the process, generate a core dump if possible.
283 #if !defined(GNUNET_CULL_LOGGING)
285 * Utility function - reallocates logdefs array to be twice as large.
290 logdefs_size = (logdefs_size + 1) * 2;
291 logdefs = GNUNET_realloc (logdefs, logdefs_size * sizeof (struct LogDef));
295 #if ! TALER_WALLET_ONLY
297 * Rotate logs, deleting the oldest log.
299 * @param new_name new name to add to the rotation
302 log_rotate (const char *new_name)
304 static char *rotation[ROTATION_KEEP];
305 static unsigned int rotation_off;
308 if ('\0' == *new_name)
309 return; /* not a real log file name */
310 discard = rotation[rotation_off % ROTATION_KEEP];
313 /* Note: can't log errors during logging (recursion!), so this
314 operation MUST silently fail... */
315 (void) UNLINK (discard);
316 GNUNET_free (discard);
318 rotation[rotation_off % ROTATION_KEEP] = GNUNET_strdup (new_name);
324 * Setup the log file.
326 * @param tm timestamp for which we should setup logging
327 * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
330 setup_log_file (const struct tm *tm)
332 static char last_fn[PATH_MAX + 1];
333 char fn[PATH_MAX + 1];
339 if (NULL == log_file_name)
340 return GNUNET_SYSERR;
341 if (0 == strftime (fn, sizeof (fn), log_file_name, tm))
342 return GNUNET_SYSERR;
343 leftsquare = strrchr (fn, '[');
344 if ( (NULL != leftsquare) && (']' == leftsquare[1]) )
346 char *logfile_copy = GNUNET_strdup (fn);
348 logfile_copy[leftsquare - fn] = '\0';
349 logfile_copy[leftsquare - fn + 1] = '\0';
355 &logfile_copy[leftsquare - fn + 2]);
356 GNUNET_free (logfile_copy);
358 if (0 == strcmp (fn, last_fn))
359 return GNUNET_OK; /* no change */
360 log_rotate (last_fn);
361 strcpy (last_fn, fn);
363 GNUNET_DISK_directory_create_for_file (fn))
366 "Failed to create directory for `%s': %s\n",
369 return GNUNET_SYSERR;
372 altlog_fd = OPEN (fn, O_APPEND |
375 _S_IREAD | _S_IWRITE);
377 altlog_fd = OPEN (fn, O_APPEND |
379 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
383 if (NULL != GNUNET_stderr)
384 fclose (GNUNET_stderr);
385 dup_return = dup2 (altlog_fd, 2);
386 (void) close (altlog_fd);
387 if (-1 != dup_return)
389 altlog = fdopen (2, "ab");
403 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", fn);
404 return GNUNET_SYSERR;
406 GNUNET_stderr = altlog;
413 * Utility function - adds a parsed definition to logdefs array.
415 * @param component see struct LogDef, can't be NULL
416 * @param file see struct LogDef, can't be NULL
417 * @param function see struct LogDef, can't be NULL
418 * @param from_line see struct LogDef
419 * @param to_line see struct LogDef
420 * @param level see struct LogDef, must be >= 0
421 * @param force see struct LogDef
422 * @return 0 on success, regex-specific error otherwise
425 add_definition (const char *component,
427 const char *function,
436 if (logdefs_size == logdefs_len)
438 memset (&n, 0, sizeof (n));
439 if (0 == strlen (component))
440 component = (char *) ".*";
441 r = regcomp (&n.component_regex, (const char *) component, REG_NOSUB);
446 if (0 == strlen (file))
447 file = (char *) ".*";
448 r = regcomp (&n.file_regex, (const char *) file, REG_NOSUB);
451 regfree (&n.component_regex);
454 if ((NULL == function) || (0 == strlen (function)))
455 function = (char *) ".*";
456 r = regcomp (&n.function_regex, (const char *) function, REG_NOSUB);
459 regfree (&n.component_regex);
460 regfree (&n.file_regex);
463 n.from_line = from_line;
467 logdefs[logdefs_len++] = n;
473 * Decides whether a particular logging call should or should not be allowed
474 * to be made. Used internally by GNUNET_log*()
476 * @param caller_level loglevel the caller wants to use
477 * @param comp component name the caller uses (NULL means that global
478 * component name is used)
479 * @param file file name containing the logging call, usually __FILE__
480 * @param function function which tries to make a logging call,
481 * usually __FUNCTION__
482 * @param line line at which the call is made, usually __LINE__
483 * @return 0 to disallow the call, 1 to allow it
486 GNUNET_get_log_call_status (int caller_level,
489 const char *function,
497 /* Use default component */
498 comp = component_nopid;
500 /* We have no definitions to override globally configured log level,
501 * so just use it right away.
503 if ( (min_level >= 0) && (GNUNET_NO == gnunet_force_log_present) )
504 return caller_level <= min_level;
506 /* Only look for forced definitions? */
507 force_only = min_level >= 0;
508 for (i = 0; i < logdefs_len; i++)
511 if (( (!force_only) || ld->force) &&
512 (line >= ld->from_line && line <= ld->to_line) &&
513 (0 == regexec (&ld->component_regex, comp, 0, NULL, 0)) &&
514 (0 == regexec (&ld->file_regex, file, 0, NULL, 0)) &&
515 (0 == regexec (&ld->function_regex, function, 0, NULL, 0)))
518 return caller_level <= ld->level;
521 /* No matches - use global level, if defined */
523 return caller_level <= min_level;
524 /* All programs/services previously defaulted to WARNING.
525 * Now *we* default to WARNING, and THEY default to NULL.
526 * Or rather we default to MESSAGE, since things aren't always bad.
528 return caller_level <= GNUNET_ERROR_TYPE_MESSAGE;
533 * Utility function - parses a definition
536 * component;file;function;from_line-to_line;level[/component...]
537 * All entries are mandatory, but may be empty.
538 * Empty entries for component, file and function are treated as
539 * "matches anything".
540 * Empty line entry is treated as "from 0 to INT_MAX"
541 * Line entry with only one line is treated as "this line only"
542 * Entry for level MUST NOT be empty.
543 * Entries for component, file and function that consist of a
544 * single character "*" are treated (at the moment) the same way
545 * empty entries are treated (wildcard matching is not implemented (yet?)).
546 * file entry is matched to the end of __FILE__. That is, it might be
547 * a base name, or a base name with leading directory names (some compilers
548 * define __FILE__ to absolute file path).
550 * @param constname name of the environment variable from which to get the
551 * string to be parsed
552 * @param force 1 if definitions found in constname are to be forced
553 * @return number of added definitions
556 parse_definitions (const char *constname, int force)
562 char *function = NULL;
568 int from_line, to_line;
570 int keep_looking = 1;
572 tmp = getenv (constname);
575 def = GNUNET_strdup (tmp);
578 for (p = def, state = 0, start = def; keep_looking; p++)
582 case ';': /* found a field separator */
586 case 0: /* within a component name */
589 case 1: /* within a file name */
592 case 2: /* within a function name */
593 /* after a file name there must be a function name */
596 case 3: /* within a from-to line range */
597 if (strlen (start) > 0)
600 from_line = strtol (start, &t, 10);
601 if ( (0 != errno) || (from_line < 0) )
606 if ( (t < p) && ('-' == t[0]) )
610 to_line = strtol (start, &t, 10);
611 if ( (0 != errno) || (to_line < 0) || (t != p) )
617 else /* one number means "match this line only" */
620 else /* default to 0-max */
630 case '\0': /* found EOL */
632 /* fall through to '/' */
633 case '/': /* found a definition separator */
636 case 4: /* within a log level */
639 level = get_type ((const char *) start);
640 if ( (GNUNET_ERROR_TYPE_INVALID == level) ||
641 (GNUNET_ERROR_TYPE_UNSPECIFIED == level) ||
642 (0 != add_definition (comp, file, function, from_line, to_line,
664 * Utility function - parses GNUNET_LOG and GNUNET_FORCE_LOG.
667 parse_all_definitions ()
669 if (GNUNET_NO == gnunet_log_parsed)
670 parse_definitions ("GNUNET_LOG", 0);
671 gnunet_log_parsed = GNUNET_YES;
672 if (GNUNET_NO == gnunet_force_log_parsed)
673 gnunet_force_log_present =
674 parse_definitions ("GNUNET_FORCE_LOG", 1) > 0 ? GNUNET_YES : GNUNET_NO;
675 gnunet_force_log_parsed = GNUNET_YES;
683 * @param comp default component to use
684 * @param loglevel what types of messages should be logged
685 * @param logfile which file to write log messages to (can be NULL)
686 * @return #GNUNET_OK on success
689 GNUNET_log_setup (const char *comp,
690 const char *loglevel,
693 const char *env_logfile;
695 min_level = get_type (loglevel);
696 #if !defined(GNUNET_CULL_LOGGING)
697 parse_all_definitions ();
700 QueryPerformanceFrequency (&performance_frequency);
702 GNUNET_free_non_null (component);
703 GNUNET_asprintf (&component, "%s-%d", comp, getpid ());
704 GNUNET_free_non_null (component_nopid);
705 component_nopid = GNUNET_strdup (comp);
707 env_logfile = getenv ("GNUNET_FORCE_LOGFILE");
708 if ((NULL != env_logfile) && (strlen (env_logfile) > 0))
709 logfile = env_logfile;
712 GNUNET_free_non_null (log_file_name);
713 log_file_name = GNUNET_STRINGS_filename_expand (logfile);
714 if (NULL == log_file_name)
715 return GNUNET_SYSERR;
716 #if TALER_WALLET_ONLY || defined(GNUNET_CULL_LOGGING)
717 /* log file option not allowed for wallet logic */
718 GNUNET_assert (NULL == logfile);
727 return setup_log_file (tm);
734 * Add a custom logger. Note that installing any custom logger
735 * will disable the standard logger. When multiple custom loggers
736 * are installed, all will be called. The standard logger will
737 * only be used if no custom loggers are present.
739 * @param logger log function
740 * @param logger_cls closure for @a logger
743 GNUNET_logger_add (GNUNET_Logger logger,
746 struct CustomLogger *entry;
748 entry = GNUNET_new (struct CustomLogger);
749 entry->logger = logger;
750 entry->logger_cls = logger_cls;
751 entry->next = loggers;
757 * Remove a custom logger.
759 * @param logger log function
760 * @param logger_cls closure for @a logger
763 GNUNET_logger_remove (GNUNET_Logger logger,
766 struct CustomLogger *pos;
767 struct CustomLogger *prev;
771 while ((NULL != pos) &&
772 ((pos->logger != logger) || (pos->logger_cls != logger_cls)))
777 GNUNET_assert (NULL != pos);
781 prev->next = pos->next;
786 CRITICAL_SECTION output_message_cs;
791 * Actually output the log message.
793 * @param kind how severe was the issue
794 * @param comp component responsible
795 * @param datestr current date/time
796 * @param msg the actual message
799 output_message (enum GNUNET_ErrorType kind,
804 struct CustomLogger *pos;
807 EnterCriticalSection (&output_message_cs);
809 /* only use the standard logger if no custom loggers are present */
810 if ( (NULL != GNUNET_stderr) &&
813 if (kind == GNUNET_ERROR_TYPE_MESSAGE) {
814 /* The idea here is to produce "normal" output messages
815 * for end users while still having the power of the
816 * logging engine for developer needs. So ideally this
817 * is what it should look like when CLI tools are used
818 * interactively, yet the same message shouldn't look
819 * this way if the output is going to logfiles or robots
820 * instead. Is this the right place to do this? --lynX
822 FPRINTF (GNUNET_stderr,
826 FPRINTF (GNUNET_stderr,
830 GNUNET_error_type_to_string (kind),
833 fflush (GNUNET_stderr);
838 pos->logger (pos->logger_cls, kind, comp, datestr, msg);
842 LeaveCriticalSection (&output_message_cs);
848 * Flush an existing bulk report to the output.
850 * @param datestr our current timestamp
853 flush_bulk (const char *datestr)
855 char msg[DATE_STR_SIZE + BULK_TRACK_SIZE + 256];
860 if ( (0 == last_bulk_time.abs_value_us) ||
861 (0 == last_bulk_repeat) )
864 last = memchr (last_bulk, '\0', BULK_TRACK_SIZE);
866 last = &last_bulk[BULK_TRACK_SIZE - 1];
867 else if (last != last_bulk)
874 ft = GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration
875 (last_bulk_time), GNUNET_YES);
876 snprintf (msg, sizeof (msg),
877 _("Message `%.*s' repeated %u times in the last %s\n"),
878 BULK_TRACK_SIZE, last_bulk, last_bulk_repeat, ft);
881 output_message (last_bulk_kind, last_bulk_comp, datestr, msg);
882 last_bulk_time = GNUNET_TIME_absolute_get ();
883 last_bulk_repeat = 0;
888 * Ignore the next n calls to the log function.
890 * @param n number of log calls to ignore (could be negative)
891 * @param check_reset #GNUNET_YES to assert that the log skip counter is currently zero
894 GNUNET_log_skip (int n,
901 ok = (0 == skip_log);
914 * Get the number of log calls that are going to be skipped
916 * @return number of log calls to be ignored
919 GNUNET_get_log_skip ()
926 * Output a log message using the default mechanism.
928 * @param kind how severe was the issue
929 * @param comp component responsible
930 * @param message the actual message
931 * @param va arguments to the format string "message"
934 mylog (enum GNUNET_ErrorType kind,
939 char date[DATE_STR_SIZE];
940 char date2[DATE_STR_SIZE];
946 size = VSNPRINTF (NULL,
950 GNUNET_assert (0 != size);
962 offset = GNUNET_TIME_get_offset ();
964 timetmp += offset / 1000;
965 tmptr = localtime (&timetmp);
967 QueryPerformanceCounter (&pc);
970 strcpy (date, "localtime error");
977 "%b %d %H:%M:%S-%%020llu",
984 (long long) (pc.QuadPart /
985 (performance_frequency.QuadPart / 1000))))
989 struct timeval timeofday;
991 gettimeofday (&timeofday,
993 offset = GNUNET_TIME_get_offset ();
996 timeofday.tv_sec += offset / 1000LL;
997 timeofday.tv_usec += (offset % 1000LL) * 1000LL;
998 if (timeofday.tv_usec > 1000000LL)
1000 timeofday.tv_usec -= 1000000LL;
1006 timeofday.tv_sec += offset / 1000LL;
1007 if (timeofday.tv_usec > - (offset % 1000LL) * 1000LL)
1009 timeofday.tv_usec += (offset % 1000LL) * 1000LL;
1013 timeofday.tv_usec += 1000000LL + (offset % 1000LL) * 1000LL;
1017 tmptr = localtime (&timeofday.tv_sec);
1028 "%b %d %H:%M:%S-%%06u",
1043 #if ! (defined(GNUNET_CULL_LOGGING) || TALER_WALLET_ONLY)
1045 (void) setup_log_file (tmptr);
1047 if ((0 != (kind & GNUNET_ERROR_TYPE_BULK)) &&
1048 (0 != last_bulk_time.abs_value_us) &&
1051 sizeof (last_bulk))))
1054 if ( (GNUNET_TIME_absolute_get_duration (last_bulk_time).rel_value_us >
1055 BULK_DELAY_THRESHOLD) ||
1056 (last_bulk_repeat > BULK_REPEAT_THRESHOLD) )
1063 sizeof (last_bulk));
1064 last_bulk_repeat = 0;
1065 last_bulk_kind = kind;
1066 last_bulk_time = GNUNET_TIME_absolute_get ();
1067 strncpy (last_bulk_comp,
1070 output_message (kind,
1079 * Main log function.
1081 * @param kind how serious is the error?
1082 * @param message what is the message (format string)
1083 * @param ... arguments for format string
1086 GNUNET_log_nocheck (enum GNUNET_ErrorType kind,
1087 const char *message, ...)
1091 va_start (va, message);
1092 mylog (kind, component, message, va);
1098 * Log function that specifies an alternative component.
1099 * This function should be used by plugins.
1101 * @param kind how serious is the error?
1102 * @param comp component responsible for generating the message
1103 * @param message what is the message (format string)
1104 * @param ... arguments for format string
1107 GNUNET_log_from_nocheck (enum GNUNET_ErrorType kind, const char *comp,
1108 const char *message, ...)
1111 char comp_w_pid[128];
1114 comp = component_nopid;
1116 va_start (va, message);
1117 GNUNET_snprintf (comp_w_pid, sizeof (comp_w_pid), "%s-%d", comp, getpid ());
1118 mylog (kind, comp_w_pid, message, va);
1124 * Convert error type to string.
1126 * @param kind type to convert
1127 * @return string corresponding to the type
1130 GNUNET_error_type_to_string (enum GNUNET_ErrorType kind)
1132 if ((kind & GNUNET_ERROR_TYPE_ERROR) > 0)
1134 if ((kind & GNUNET_ERROR_TYPE_WARNING) > 0)
1135 return _("WARNING");
1136 if ((kind & GNUNET_ERROR_TYPE_MESSAGE) > 0)
1137 return _("MESSAGE");
1138 if ((kind & GNUNET_ERROR_TYPE_INFO) > 0)
1140 if ((kind & GNUNET_ERROR_TYPE_DEBUG) > 0)
1142 if ((kind & ~GNUNET_ERROR_TYPE_BULK) == 0)
1144 return _("INVALID");
1149 * Convert a hash to a string (for printing debug messages).
1150 * This is one of the very few calls in the entire API that is
1153 * @param hc the hash code
1154 * @return string form; will be overwritten by next call to GNUNET_h2s.
1157 GNUNET_h2s (const struct GNUNET_HashCode * hc)
1159 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1161 GNUNET_CRYPTO_hash_to_enc (hc, &ret);
1162 ret.encoding[8] = '\0';
1163 return (const char *) ret.encoding;
1168 * Convert a hash to a string (for printing debug messages).
1169 * This is one of the very few calls in the entire API that is
1170 * NOT reentrant! Identical to #GNUNET_h2s(), except that another
1171 * buffer is used so both #GNUNET_h2s() and #GNUNET_h2s2() can be
1172 * used within the same log statement.
1174 * @param hc the hash code
1175 * @return string form; will be overwritten by next call to GNUNET_h2s.
1178 GNUNET_h2s2 (const struct GNUNET_HashCode * hc)
1180 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1182 GNUNET_CRYPTO_hash_to_enc (hc, &ret);
1183 ret.encoding[8] = '\0';
1184 return (const char *) ret.encoding;
1190 * Convert a public key value to a string (for printing debug messages).
1191 * This is one of the very few calls in the entire API that is
1194 * @param hc the hash code
1198 GNUNET_p2s (const struct GNUNET_CRYPTO_EddsaPublicKey *p)
1200 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1201 struct GNUNET_HashCode hc;
1203 GNUNET_CRYPTO_hash (p,
1206 GNUNET_CRYPTO_hash_to_enc (&hc,
1208 ret.encoding[6] = '\0';
1209 return (const char *) ret.encoding;
1215 * Convert a public key value to a string (for printing debug messages).
1216 * This is one of the very few calls in the entire API that is
1219 * @param hc the hash code
1223 GNUNET_p2s2 (const struct GNUNET_CRYPTO_EddsaPublicKey *p)
1225 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1226 struct GNUNET_HashCode hc;
1228 GNUNET_CRYPTO_hash (p,
1231 GNUNET_CRYPTO_hash_to_enc (&hc,
1233 ret.encoding[6] = '\0';
1234 return (const char *) ret.encoding;
1240 * Convert a public key value to a string (for printing debug messages).
1241 * This is one of the very few calls in the entire API that is
1244 * @param hc the hash code
1248 GNUNET_e2s (const struct GNUNET_CRYPTO_EcdhePublicKey *p)
1250 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1251 struct GNUNET_HashCode hc;
1253 GNUNET_CRYPTO_hash (p,
1256 GNUNET_CRYPTO_hash_to_enc (&hc,
1258 ret.encoding[6] = '\0';
1259 return (const char *) ret.encoding;
1265 * Convert a public key value to a string (for printing debug messages).
1266 * This is one of the very few calls in the entire API that is
1269 * @param hc the hash code
1273 GNUNET_e2s2 (const struct GNUNET_CRYPTO_EcdhePublicKey *p)
1275 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1276 struct GNUNET_HashCode hc;
1278 GNUNET_CRYPTO_hash (p,
1281 GNUNET_CRYPTO_hash_to_enc (&hc,
1283 ret.encoding[6] = '\0';
1284 return (const char *) ret.encoding;
1290 * Convert a short hash value to a string (for printing debug messages).
1291 * This is one of the very few calls in the entire API that is
1294 * @param shc the hash code
1298 GNUNET_sh2s (const struct GNUNET_ShortHashCode *shc)
1300 static char buf[64];
1302 GNUNET_STRINGS_data_to_string (shc,
1307 return (const char *) buf;
1312 * Convert a hash to a string (for printing debug messages).
1313 * This is one of the very few calls in the entire API that is
1316 * @param hc the hash code
1317 * @return string form; will be overwritten by next call to GNUNET_h2s_full.
1320 GNUNET_h2s_full (const struct GNUNET_HashCode * hc)
1322 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1324 GNUNET_CRYPTO_hash_to_enc (hc, &ret);
1325 ret.encoding[sizeof (ret) - 1] = '\0';
1326 return (const char *) ret.encoding;
1331 * Convert a peer identity to a string (for printing debug messages).
1332 * This is one of the very few calls in the entire API that is
1335 * @param pid the peer identity
1336 * @return string form of the pid; will be overwritten by next
1337 * call to #GNUNET_i2s.
1340 GNUNET_i2s (const struct GNUNET_PeerIdentity *pid)
1347 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1358 * Convert a peer identity to a string (for printing debug messages).
1359 * This is one of the very few calls in the entire API that is
1360 * NOT reentrant! Identical to #GNUNET_i2s(), except that another
1361 * buffer is used so both #GNUNET_i2s() and #GNUNET_i2s2() can be
1362 * used within the same log statement.
1364 * @param pid the peer identity
1365 * @return string form of the pid; will be overwritten by next
1366 * call to #GNUNET_i2s.
1369 GNUNET_i2s2 (const struct GNUNET_PeerIdentity *pid)
1376 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1387 * Convert a peer identity to a string (for printing debug messages).
1388 * This is one of the very few calls in the entire API that is
1391 * @param pid the peer identity
1392 * @return string form of the pid; will be overwritten by next
1393 * call to #GNUNET_i2s_full.
1396 GNUNET_i2s_full (const struct GNUNET_PeerIdentity *pid)
1398 static char buf[256];
1401 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1409 * Convert a "struct sockaddr*" (IPv4 or IPv6 address) to a string
1410 * (for printing debug messages). This is one of the very few calls
1411 * in the entire API that is NOT reentrant!
1413 * @param addr the address
1414 * @param addrlen the length of the address in @a addr
1415 * @return nicely formatted string for the address
1416 * will be overwritten by next call to #GNUNET_a2s.
1419 GNUNET_a2s (const struct sockaddr *addr,
1423 #define LEN GNUNET_MAX ((INET6_ADDRSTRLEN + 8), \
1424 (1 + sizeof (struct sockaddr_un) - sizeof (sa_family_t)))
1426 #define LEN (INET6_ADDRSTRLEN + 8)
1428 static char buf[LEN];
1431 const struct sockaddr_in *v4;
1432 const struct sockaddr_un *un;
1433 const struct sockaddr_in6 *v6;
1437 return _("unknown address");
1438 switch (addr->sa_family)
1441 if (addrlen != sizeof (struct sockaddr_in))
1442 return "<invalid v4 address>";
1443 v4 = (const struct sockaddr_in *) addr;
1444 inet_ntop (AF_INET, &v4->sin_addr, buf, INET_ADDRSTRLEN);
1445 if (0 == ntohs (v4->sin_port))
1448 GNUNET_snprintf (b2, sizeof (b2), "%u", ntohs (v4->sin_port));
1452 if (addrlen != sizeof (struct sockaddr_in6))
1453 return "<invalid v4 address>";
1454 v6 = (const struct sockaddr_in6 *) addr;
1456 inet_ntop (AF_INET6, &v6->sin6_addr, &buf[1], INET6_ADDRSTRLEN);
1457 if (0 == ntohs (v6->sin6_port))
1460 GNUNET_snprintf (b2, sizeof (b2), "%u", ntohs (v6->sin6_port));
1464 if (addrlen <= sizeof (sa_family_t))
1465 return "<unbound UNIX client>";
1466 un = (const struct sockaddr_un *) addr;
1468 if ('\0' == un->sun_path[0])
1470 memset (buf, 0, sizeof (buf));
1471 GNUNET_snprintf (buf,
1474 (1 == off) ? "@" : "",
1475 (int) (addrlen - sizeof (sa_family_t) - off),
1476 &un->sun_path[off]);
1479 return _("invalid address");
1485 * Log error message about missing configuration option.
1487 * @param kind log level
1488 * @param section section with missing option
1489 * @param option name of missing option
1492 GNUNET_log_config_missing (enum GNUNET_ErrorType kind,
1493 const char *section,
1497 _("Configuration fails to specify option `%s' in section `%s'!\n"),
1504 * Log error message about invalid configuration option value.
1506 * @param kind log level
1507 * @param section section with invalid option
1508 * @param option name of invalid option
1509 * @param required what is required that is invalid about the option
1512 GNUNET_log_config_invalid (enum GNUNET_ErrorType kind,
1513 const char *section,
1515 const char *required)
1518 _("Configuration specifies invalid value for option `%s' in section `%s': %s\n"),
1519 option, section, required);
1526 void __attribute__ ((constructor))
1527 GNUNET_util_cl_init ()
1529 GNUNET_stderr = stderr;
1531 GNInitWinEnv (NULL);
1534 if (!InitializeCriticalSectionAndSpinCount (&output_message_cs, 0x00000400))
1543 void __attribute__ ((destructor))
1544 GNUNET_util_cl_fini ()
1547 DeleteCriticalSection (&output_message_cs);
1550 GNShutdownWinEnv ();
1554 /* end of common_logging.c */