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3 Copyright (C) 2006-2013 GNUnet e.V.
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6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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22 * @file util/common_logging.c
23 * @brief error handling API
24 * @author Christian Grothoff
27 #include "gnunet_crypto_lib.h"
28 #include "gnunet_disk_lib.h"
29 #include "gnunet_strings_lib.h"
34 * After how many milliseconds do we always print
35 * that "message X was repeated N times"? Use 12h.
37 #define BULK_DELAY_THRESHOLD (12 * 60 * 60 * 1000LL * 1000LL)
40 * After how many repetitions do we always print
41 * that "message X was repeated N times"? (even if
42 * we have not yet reached the delay threshold)
44 #define BULK_REPEAT_THRESHOLD 1000
47 * How many characters do we use for matching of
50 #define BULK_TRACK_SIZE 256
53 * How many characters do we use for matching of
56 #define COMP_TRACK_SIZE 32
59 * How many characters can a date/time string
62 #define DATE_STR_SIZE 64
65 * How many log files to keep?
67 #define ROTATION_KEEP 3
71 * Assumed maximum path length (for the log file name).
78 * Linked list of active loggers.
83 * This is a linked list.
85 struct CustomLogger *next;
99 * The last "bulk" error message that we have been logging.
100 * Note that this message maybe truncated to the first BULK_TRACK_SIZE
101 * characters, in which case it is NOT 0-terminated!
103 static char last_bulk[BULK_TRACK_SIZE];
106 * Type of the last bulk message.
108 static enum GNUNET_ErrorType last_bulk_kind;
111 * Time of the last bulk error message (0 for none)
113 static struct GNUNET_TIME_Absolute last_bulk_time;
116 * Number of times that bulk message has been repeated since.
118 static unsigned int last_bulk_repeat;
121 * Component when the last bulk was logged. Will be 0-terminated.
123 static char last_bulk_comp[COMP_TRACK_SIZE + 1];
128 static char *component;
131 * Running component (without pid).
133 static char *component_nopid;
136 * Format string describing the name of the log file.
138 static char *log_file_name;
143 static enum GNUNET_ErrorType min_level;
146 * Linked list of our custom loggres.
148 static struct CustomLogger *loggers;
151 * Number of log calls to ignore.
153 static int skip_log = 0;
156 * File descriptor to use for "stderr", or NULL for none.
158 static FILE *GNUNET_stderr;
161 * Represents a single logging definition
166 * Component name regex
168 regex_t component_regex;
176 * Function name regex
178 regex_t function_regex;
181 * Lowest line at which this definition matches.
182 * Defaults to 0. Must be <= to_line.
187 * Highest line at which this definition matches.
188 * Defaults to INT_MAX. Must be >= from_line.
193 * Maximal log level allowed for calls that match this definition.
194 * Calls with higher log level will be disabled.
200 * 1 if this definition comes from GNUNET_FORCE_LOG, which means that it
201 * overrides any configuration options. 0 otherwise.
207 * Dynamic array of logging definitions
209 static struct LogDef *logdefs;
212 * Allocated size of logdefs array (in units)
214 static int logdefs_size;
217 * The number of units used in logdefs array.
219 static int logdefs_len;
222 * GNUNET_YES if GNUNET_LOG environment variable is already parsed.
224 static int gnunet_log_parsed;
227 * GNUNET_YES if GNUNET_FORCE_LOG environment variable is already parsed.
229 static int gnunet_force_log_parsed;
232 * GNUNET_YES if at least one definition with forced == 1 is available.
234 static int gnunet_force_log_present;
238 * Contains the number of performance counts per second.
240 static LARGE_INTEGER performance_frequency;
245 * Convert a textual description of a loglevel
246 * to the respective GNUNET_GE_KIND.
248 * @param log loglevel to parse
249 * @return GNUNET_GE_INVALID if log does not parse
251 static enum GNUNET_ErrorType
252 get_type (const char *log)
255 return GNUNET_ERROR_TYPE_UNSPECIFIED;
256 if (0 == strcasecmp (log, _("DEBUG")))
257 return GNUNET_ERROR_TYPE_DEBUG;
258 if (0 == strcasecmp (log, _("INFO")))
259 return GNUNET_ERROR_TYPE_INFO;
260 if (0 == strcasecmp (log, _("MESSAGE")))
261 return GNUNET_ERROR_TYPE_MESSAGE;
262 if (0 == strcasecmp (log, _("WARNING")))
263 return GNUNET_ERROR_TYPE_WARNING;
264 if (0 == strcasecmp (log, _("ERROR")))
265 return GNUNET_ERROR_TYPE_ERROR;
266 if (0 == strcasecmp (log, _("NONE")))
267 return GNUNET_ERROR_TYPE_NONE;
268 return GNUNET_ERROR_TYPE_INVALID;
272 #if !defined(GNUNET_CULL_LOGGING)
274 * Utility function - reallocates logdefs array to be twice as large.
279 logdefs_size = (logdefs_size + 1) * 2;
280 logdefs = GNUNET_realloc (logdefs, logdefs_size * sizeof (struct LogDef));
285 * Abort the process, generate a core dump if possible.
297 #if ! TALER_WALLET_ONLY
299 * Rotate logs, deleting the oldest log.
301 * @param new_name new name to add to the rotation
304 log_rotate (const char *new_name)
306 static char *rotation[ROTATION_KEEP];
307 static unsigned int rotation_off;
310 if ('\0' == *new_name)
311 return; /* not a real log file name */
312 discard = rotation[rotation_off % ROTATION_KEEP];
315 /* Note: can't log errors during logging (recursion!), so this
316 operation MUST silently fail... */
317 (void) UNLINK (discard);
318 GNUNET_free (discard);
320 rotation[rotation_off % ROTATION_KEEP] = GNUNET_strdup (new_name);
326 * Setup the log file.
328 * @param tm timestamp for which we should setup logging
329 * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
332 setup_log_file (const struct tm *tm)
334 static char last_fn[PATH_MAX + 1];
335 char fn[PATH_MAX + 1];
341 if (NULL == log_file_name)
342 return GNUNET_SYSERR;
343 if (0 == strftime (fn, sizeof (fn), log_file_name, tm))
344 return GNUNET_SYSERR;
345 leftsquare = strrchr (fn, '[');
346 if ( (NULL != leftsquare) && (']' == leftsquare[1]) )
348 char *logfile_copy = GNUNET_strdup (fn);
350 logfile_copy[leftsquare - fn] = '\0';
351 logfile_copy[leftsquare - fn + 1] = '\0';
357 &logfile_copy[leftsquare - fn + 2]);
358 GNUNET_free (logfile_copy);
360 if (0 == strcmp (fn, last_fn))
361 return GNUNET_OK; /* no change */
362 log_rotate (last_fn);
363 strcpy (last_fn, fn);
365 GNUNET_DISK_directory_create_for_file (fn))
368 "Failed to create directory for `%s': %s\n",
371 return GNUNET_SYSERR;
374 altlog_fd = OPEN (fn, O_APPEND |
377 _S_IREAD | _S_IWRITE);
379 altlog_fd = OPEN (fn, O_APPEND |
381 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
385 if (NULL != GNUNET_stderr)
386 fclose (GNUNET_stderr);
387 dup_return = dup2 (altlog_fd, 2);
388 (void) close (altlog_fd);
389 if (-1 != dup_return)
391 altlog = fdopen (2, "ab");
405 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", fn);
406 return GNUNET_SYSERR;
408 GNUNET_stderr = altlog;
415 * Utility function - adds a parsed definition to logdefs array.
417 * @param component see struct LogDef, can't be NULL
418 * @param file see struct LogDef, can't be NULL
419 * @param function see struct LogDef, can't be NULL
420 * @param from_line see struct LogDef
421 * @param to_line see struct LogDef
422 * @param level see struct LogDef, must be >= 0
423 * @param force see struct LogDef
424 * @return 0 on success, regex-specific error otherwise
427 add_definition (const char *component,
429 const char *function,
438 if (logdefs_size == logdefs_len)
440 memset (&n, 0, sizeof (n));
441 if (0 == strlen (component))
442 component = (char *) ".*";
443 r = regcomp (&n.component_regex, (const char *) component, REG_NOSUB);
448 if (0 == strlen (file))
449 file = (char *) ".*";
450 r = regcomp (&n.file_regex, (const char *) file, REG_NOSUB);
453 regfree (&n.component_regex);
456 if ((NULL == function) || (0 == strlen (function)))
457 function = (char *) ".*";
458 r = regcomp (&n.function_regex, (const char *) function, REG_NOSUB);
461 regfree (&n.component_regex);
462 regfree (&n.file_regex);
465 n.from_line = from_line;
469 logdefs[logdefs_len++] = n;
475 * Decides whether a particular logging call should or should not be allowed
476 * to be made. Used internally by GNUNET_log*()
478 * @param caller_level loglevel the caller wants to use
479 * @param comp component name the caller uses (NULL means that global
480 * component name is used)
481 * @param file file name containing the logging call, usually __FILE__
482 * @param function function which tries to make a logging call,
483 * usually __FUNCTION__
484 * @param line line at which the call is made, usually __LINE__
485 * @return 0 to disallow the call, 1 to allow it
488 GNUNET_get_log_call_status (int caller_level,
491 const char *function,
499 /* Use default component */
500 comp = component_nopid;
502 /* We have no definitions to override globally configured log level,
503 * so just use it right away.
505 if ( (min_level >= 0) && (GNUNET_NO == gnunet_force_log_present) )
506 return caller_level <= min_level;
508 /* Only look for forced definitions? */
509 force_only = min_level >= 0;
510 for (i = 0; i < logdefs_len; i++)
513 if (( (!force_only) || ld->force) &&
514 (line >= ld->from_line && line <= ld->to_line) &&
515 (0 == regexec (&ld->component_regex, comp, 0, NULL, 0)) &&
516 (0 == regexec (&ld->file_regex, file, 0, NULL, 0)) &&
517 (0 == regexec (&ld->function_regex, function, 0, NULL, 0)))
520 return caller_level <= ld->level;
523 /* No matches - use global level, if defined */
525 return caller_level <= min_level;
526 /* All programs/services previously defaulted to WARNING.
527 * Now *we* default to WARNING, and THEY default to NULL.
528 * Or rather we default to MESSAGE, since things aren't always bad.
530 return caller_level <= GNUNET_ERROR_TYPE_MESSAGE;
535 * Utility function - parses a definition
538 * component;file;function;from_line-to_line;level[/component...]
539 * All entries are mandatory, but may be empty.
540 * Empty entries for component, file and function are treated as
541 * "matches anything".
542 * Empty line entry is treated as "from 0 to INT_MAX"
543 * Line entry with only one line is treated as "this line only"
544 * Entry for level MUST NOT be empty.
545 * Entries for component, file and function that consist of a
546 * single character "*" are treated (at the moment) the same way
547 * empty entries are treated (wildcard matching is not implemented (yet?)).
548 * file entry is matched to the end of __FILE__. That is, it might be
549 * a base name, or a base name with leading directory names (some compilers
550 * define __FILE__ to absolute file path).
552 * @param constname name of the environment variable from which to get the
553 * string to be parsed
554 * @param force 1 if definitions found in constname are to be forced
555 * @return number of added definitions
558 parse_definitions (const char *constname, int force)
564 char *function = NULL;
570 int from_line, to_line;
572 int keep_looking = 1;
574 tmp = getenv (constname);
577 def = GNUNET_strdup (tmp);
580 for (p = def, state = 0, start = def; keep_looking; p++)
584 case ';': /* found a field separator */
588 case 0: /* within a component name */
591 case 1: /* within a file name */
594 case 2: /* within a function name */
595 /* after a file name there must be a function name */
598 case 3: /* within a from-to line range */
599 if (strlen (start) > 0)
602 from_line = strtol (start, &t, 10);
603 if ( (0 != errno) || (from_line < 0) )
608 if ( (t < p) && ('-' == t[0]) )
612 to_line = strtol (start, &t, 10);
613 if ( (0 != errno) || (to_line < 0) || (t != p) )
619 else /* one number means "match this line only" */
622 else /* default to 0-max */
632 case '\0': /* found EOL */
634 /* fall through to '/' */
635 case '/': /* found a definition separator */
638 case 4: /* within a log level */
641 level = get_type ((const char *) start);
642 if ( (GNUNET_ERROR_TYPE_INVALID == level) ||
643 (GNUNET_ERROR_TYPE_UNSPECIFIED == level) ||
644 (0 != add_definition (comp, file, function, from_line, to_line,
666 * Utility function - parses GNUNET_LOG and GNUNET_FORCE_LOG.
669 parse_all_definitions ()
671 if (GNUNET_NO == gnunet_log_parsed)
672 parse_definitions ("GNUNET_LOG", 0);
673 gnunet_log_parsed = GNUNET_YES;
674 if (GNUNET_NO == gnunet_force_log_parsed)
675 gnunet_force_log_present =
676 parse_definitions ("GNUNET_FORCE_LOG", 1) > 0 ? GNUNET_YES : GNUNET_NO;
677 gnunet_force_log_parsed = GNUNET_YES;
685 * @param comp default component to use
686 * @param loglevel what types of messages should be logged
687 * @param logfile which file to write log messages to (can be NULL)
688 * @return #GNUNET_OK on success
691 GNUNET_log_setup (const char *comp,
692 const char *loglevel,
695 const char *env_logfile;
697 min_level = get_type (loglevel);
698 #if !defined(GNUNET_CULL_LOGGING)
699 parse_all_definitions ();
702 QueryPerformanceFrequency (&performance_frequency);
704 GNUNET_free_non_null (component);
705 GNUNET_asprintf (&component, "%s-%d", comp, getpid ());
706 GNUNET_free_non_null (component_nopid);
707 component_nopid = GNUNET_strdup (comp);
709 env_logfile = getenv ("GNUNET_FORCE_LOGFILE");
710 if ((NULL != env_logfile) && (strlen (env_logfile) > 0))
711 logfile = env_logfile;
714 GNUNET_free_non_null (log_file_name);
715 log_file_name = GNUNET_STRINGS_filename_expand (logfile);
716 if (NULL == log_file_name)
717 return GNUNET_SYSERR;
718 #if TALER_WALLET_ONLY
719 /* log file option not allowed for wallet logic */
720 GNUNET_assert (NULL == logfile);
729 return setup_log_file (tm);
736 * Add a custom logger. Note that installing any custom logger
737 * will disable the standard logger. When multiple custom loggers
738 * are installed, all will be called. The standard logger will
739 * only be used if no custom loggers are present.
741 * @param logger log function
742 * @param logger_cls closure for @a logger
745 GNUNET_logger_add (GNUNET_Logger logger,
748 struct CustomLogger *entry;
750 entry = GNUNET_new (struct CustomLogger);
751 entry->logger = logger;
752 entry->logger_cls = logger_cls;
753 entry->next = loggers;
759 * Remove a custom logger.
761 * @param logger log function
762 * @param logger_cls closure for @a logger
765 GNUNET_logger_remove (GNUNET_Logger logger,
768 struct CustomLogger *pos;
769 struct CustomLogger *prev;
773 while ((NULL != pos) &&
774 ((pos->logger != logger) || (pos->logger_cls != logger_cls)))
779 GNUNET_assert (NULL != pos);
783 prev->next = pos->next;
788 CRITICAL_SECTION output_message_cs;
793 * Actually output the log message.
795 * @param kind how severe was the issue
796 * @param comp component responsible
797 * @param datestr current date/time
798 * @param msg the actual message
801 output_message (enum GNUNET_ErrorType kind,
806 struct CustomLogger *pos;
809 EnterCriticalSection (&output_message_cs);
811 /* only use the standard logger if no custom loggers are present */
812 if ( (NULL != GNUNET_stderr) &&
815 if (kind == GNUNET_ERROR_TYPE_MESSAGE) {
816 /* The idea here is to produce "normal" output messages
817 * for end users while still having the power of the
818 * logging engine for developer needs. So ideally this
819 * is what it should look like when CLI tools are used
820 * interactively, yet the same message shouldn't look
821 * this way if the output is going to logfiles or robots
822 * instead. Is this the right place to do this? --lynX
824 FPRINTF (GNUNET_stderr,
828 FPRINTF (GNUNET_stderr,
832 GNUNET_error_type_to_string (kind),
835 fflush (GNUNET_stderr);
840 pos->logger (pos->logger_cls, kind, comp, datestr, msg);
844 LeaveCriticalSection (&output_message_cs);
850 * Flush an existing bulk report to the output.
852 * @param datestr our current timestamp
855 flush_bulk (const char *datestr)
857 char msg[DATE_STR_SIZE + BULK_TRACK_SIZE + 256];
862 if ( (0 == last_bulk_time.abs_value_us) ||
863 (0 == last_bulk_repeat) )
866 last = memchr (last_bulk, '\0', BULK_TRACK_SIZE);
868 last = &last_bulk[BULK_TRACK_SIZE - 1];
869 else if (last != last_bulk)
876 ft = GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration
877 (last_bulk_time), GNUNET_YES);
878 snprintf (msg, sizeof (msg),
879 _("Message `%.*s' repeated %u times in the last %s\n"),
880 BULK_TRACK_SIZE, last_bulk, last_bulk_repeat, ft);
883 output_message (last_bulk_kind, last_bulk_comp, datestr, msg);
884 last_bulk_time = GNUNET_TIME_absolute_get ();
885 last_bulk_repeat = 0;
890 * Ignore the next n calls to the log function.
892 * @param n number of log calls to ignore (could be negative)
893 * @param check_reset #GNUNET_YES to assert that the log skip counter is currently zero
896 GNUNET_log_skip (int n,
903 ok = (0 == skip_log);
916 * Get the number of log calls that are going to be skipped
918 * @return number of log calls to be ignored
921 GNUNET_get_log_skip ()
928 * Output a log message using the default mechanism.
930 * @param kind how severe was the issue
931 * @param comp component responsible
932 * @param message the actual message
933 * @param va arguments to the format string "message"
936 mylog (enum GNUNET_ErrorType kind,
941 char date[DATE_STR_SIZE];
942 char date2[DATE_STR_SIZE];
948 size = VSNPRINTF (NULL,
952 GNUNET_assert (0 != size);
964 offset = GNUNET_TIME_get_offset ();
966 timetmp += offset / 1000;
967 tmptr = localtime (&timetmp);
969 QueryPerformanceCounter (&pc);
972 strcpy (date, "localtime error");
978 "%b %d %H:%M:%S-%%020llu",
983 (long long) (pc.QuadPart /
984 (performance_frequency.QuadPart / 1000)));
987 struct timeval timeofday;
989 gettimeofday (&timeofday, NULL);
990 offset = GNUNET_TIME_get_offset ();
993 timeofday.tv_sec += offset / 1000LL;
994 timeofday.tv_usec += (offset % 1000LL) * 1000LL;
995 if (timeofday.tv_usec > 1000000LL)
997 timeofday.tv_usec -= 1000000LL;
1003 timeofday.tv_sec += offset / 1000LL;
1004 if (timeofday.tv_usec > - (offset % 1000LL) * 1000LL)
1006 timeofday.tv_usec += (offset % 1000LL) * 1000LL;
1010 timeofday.tv_usec += 1000000LL + (offset % 1000LL) * 1000LL;
1014 tmptr = localtime (&timeofday.tv_sec);
1024 "%b %d %H:%M:%S-%%06u",
1032 VSNPRINTF (buf, size, message, va);
1033 #if ! TALER_WALLET_ONLY
1035 (void) setup_log_file (tmptr);
1037 if ((0 != (kind & GNUNET_ERROR_TYPE_BULK)) &&
1038 (0 != last_bulk_time.abs_value_us) &&
1039 (0 == strncmp (buf, last_bulk, sizeof (last_bulk))))
1042 if ( (GNUNET_TIME_absolute_get_duration (last_bulk_time).rel_value_us >
1043 BULK_DELAY_THRESHOLD) ||
1044 (last_bulk_repeat > BULK_REPEAT_THRESHOLD) )
1051 sizeof (last_bulk));
1052 last_bulk_repeat = 0;
1053 last_bulk_kind = kind;
1054 last_bulk_time = GNUNET_TIME_absolute_get ();
1055 strncpy (last_bulk_comp,
1058 output_message (kind,
1067 * Main log function.
1069 * @param kind how serious is the error?
1070 * @param message what is the message (format string)
1071 * @param ... arguments for format string
1074 GNUNET_log_nocheck (enum GNUNET_ErrorType kind,
1075 const char *message, ...)
1079 va_start (va, message);
1080 mylog (kind, component, message, va);
1086 * Log function that specifies an alternative component.
1087 * This function should be used by plugins.
1089 * @param kind how serious is the error?
1090 * @param comp component responsible for generating the message
1091 * @param message what is the message (format string)
1092 * @param ... arguments for format string
1095 GNUNET_log_from_nocheck (enum GNUNET_ErrorType kind, const char *comp,
1096 const char *message, ...)
1099 char comp_w_pid[128];
1102 comp = component_nopid;
1104 va_start (va, message);
1105 GNUNET_snprintf (comp_w_pid, sizeof (comp_w_pid), "%s-%d", comp, getpid ());
1106 mylog (kind, comp_w_pid, message, va);
1112 * Convert error type to string.
1114 * @param kind type to convert
1115 * @return string corresponding to the type
1118 GNUNET_error_type_to_string (enum GNUNET_ErrorType kind)
1120 if ((kind & GNUNET_ERROR_TYPE_ERROR) > 0)
1122 if ((kind & GNUNET_ERROR_TYPE_WARNING) > 0)
1123 return _("WARNING");
1124 if ((kind & GNUNET_ERROR_TYPE_MESSAGE) > 0)
1125 return _("MESSAGE");
1126 if ((kind & GNUNET_ERROR_TYPE_INFO) > 0)
1128 if ((kind & GNUNET_ERROR_TYPE_DEBUG) > 0)
1130 if ((kind & ~GNUNET_ERROR_TYPE_BULK) == 0)
1132 return _("INVALID");
1137 * Convert a hash to a string (for printing debug messages).
1138 * This is one of the very few calls in the entire API that is
1141 * @param hc the hash code
1142 * @return string form; will be overwritten by next call to GNUNET_h2s.
1145 GNUNET_h2s (const struct GNUNET_HashCode * hc)
1147 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1149 GNUNET_CRYPTO_hash_to_enc (hc, &ret);
1150 ret.encoding[8] = '\0';
1151 return (const char *) ret.encoding;
1157 * Convert a short hash value to a string (for printing debug messages).
1158 * This is one of the very few calls in the entire API that is
1161 * @param shc the hash code
1165 GNUNET_sh2s (const struct GNUNET_ShortHashCode *shc)
1167 static char buf[64];
1169 GNUNET_STRINGS_data_to_string (shc,
1174 return (const char *) buf;
1179 * Convert a hash to a string (for printing debug messages).
1180 * This is one of the very few calls in the entire API that is
1183 * @param hc the hash code
1184 * @return string form; will be overwritten by next call to GNUNET_h2s_full.
1187 GNUNET_h2s_full (const struct GNUNET_HashCode * hc)
1189 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1191 GNUNET_CRYPTO_hash_to_enc (hc, &ret);
1192 ret.encoding[sizeof (ret) - 1] = '\0';
1193 return (const char *) ret.encoding;
1198 * Convert a peer identity to a string (for printing debug messages).
1199 * This is one of the very few calls in the entire API that is
1202 * @param pid the peer identity
1203 * @return string form of the pid; will be overwritten by next
1204 * call to #GNUNET_i2s.
1207 GNUNET_i2s (const struct GNUNET_PeerIdentity *pid)
1209 static char buf[256];
1214 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1224 * Convert a peer identity to a string (for printing debug messages).
1225 * This is one of the very few calls in the entire API that is
1226 * NOT reentrant! Identical to #GNUNET_i2s(), except that another
1227 * buffer is used so both #GNUNET_i2s() and #GNUNET_i2s2() can be
1228 * used within the same log statement.
1230 * @param pid the peer identity
1231 * @return string form of the pid; will be overwritten by next
1232 * call to #GNUNET_i2s.
1235 GNUNET_i2s2 (const struct GNUNET_PeerIdentity *pid)
1237 static char buf[256];
1242 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1252 * Convert a peer identity to a string (for printing debug messages).
1253 * This is one of the very few calls in the entire API that is
1256 * @param pid the peer identity
1257 * @return string form of the pid; will be overwritten by next
1258 * call to #GNUNET_i2s_full.
1261 GNUNET_i2s_full (const struct GNUNET_PeerIdentity *pid)
1263 static char buf[256];
1266 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1274 * Convert a "struct sockaddr*" (IPv4 or IPv6 address) to a string
1275 * (for printing debug messages). This is one of the very few calls
1276 * in the entire API that is NOT reentrant!
1278 * @param addr the address
1279 * @param addrlen the length of the address in @a addr
1280 * @return nicely formatted string for the address
1281 * will be overwritten by next call to #GNUNET_a2s.
1284 GNUNET_a2s (const struct sockaddr *addr,
1288 #define LEN GNUNET_MAX ((INET6_ADDRSTRLEN + 8), \
1289 (1 + sizeof (struct sockaddr_un) - sizeof (sa_family_t)))
1291 #define LEN (INET6_ADDRSTRLEN + 8)
1293 static char buf[LEN];
1296 const struct sockaddr_in *v4;
1297 const struct sockaddr_un *un;
1298 const struct sockaddr_in6 *v6;
1302 return _("unknown address");
1303 switch (addr->sa_family)
1306 if (addrlen != sizeof (struct sockaddr_in))
1307 return "<invalid v4 address>";
1308 v4 = (const struct sockaddr_in *) addr;
1309 inet_ntop (AF_INET, &v4->sin_addr, buf, INET_ADDRSTRLEN);
1310 if (0 == ntohs (v4->sin_port))
1313 GNUNET_snprintf (b2, sizeof (b2), "%u", ntohs (v4->sin_port));
1317 if (addrlen != sizeof (struct sockaddr_in6))
1318 return "<invalid v4 address>";
1319 v6 = (const struct sockaddr_in6 *) addr;
1321 inet_ntop (AF_INET6, &v6->sin6_addr, &buf[1], INET6_ADDRSTRLEN);
1322 if (0 == ntohs (v6->sin6_port))
1325 GNUNET_snprintf (b2, sizeof (b2), "%u", ntohs (v6->sin6_port));
1329 if (addrlen <= sizeof (sa_family_t))
1330 return "<unbound UNIX client>";
1331 un = (const struct sockaddr_un *) addr;
1333 if ('\0' == un->sun_path[0])
1335 memset (buf, 0, sizeof (buf));
1336 GNUNET_snprintf (buf,
1339 (1 == off) ? "@" : "",
1340 (int) (addrlen - sizeof (sa_family_t) - off),
1341 &un->sun_path[off]);
1344 return _("invalid address");
1350 * Log error message about missing configuration option.
1352 * @param kind log level
1353 * @param section section with missing option
1354 * @param option name of missing option
1357 GNUNET_log_config_missing (enum GNUNET_ErrorType kind,
1358 const char *section,
1362 _("Configuration fails to specify option `%s' in section `%s'!\n"),
1369 * Log error message about invalid configuration option value.
1371 * @param kind log level
1372 * @param section section with invalid option
1373 * @param option name of invalid option
1374 * @param required what is required that is invalid about the option
1377 GNUNET_log_config_invalid (enum GNUNET_ErrorType kind,
1378 const char *section,
1380 const char *required)
1383 _("Configuration specifies invalid value for option `%s' in section `%s': %s\n"),
1384 option, section, required);
1391 void __attribute__ ((constructor))
1392 GNUNET_util_cl_init ()
1394 GNUNET_stderr = stderr;
1396 GNInitWinEnv (NULL);
1399 if (!InitializeCriticalSectionAndSpinCount (&output_message_cs, 0x00000400))
1408 void __attribute__ ((destructor))
1409 GNUNET_util_cl_fini ()
1412 DeleteCriticalSection (&output_message_cs);
1415 GNShutdownWinEnv ();
1419 /* end of common_logging.c */