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
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
8 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 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
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, _("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;
270 #if !defined(GNUNET_CULL_LOGGING)
272 * Utility function - reallocates logdefs array to be twice as large.
277 logdefs_size = (logdefs_size + 1) * 2;
278 logdefs = GNUNET_realloc (logdefs, logdefs_size * sizeof (struct LogDef));
283 * Abort the process, generate a core dump if possible.
296 * Rotate logs, deleting the oldest log.
298 * @param new_name new name to add to the rotation
301 log_rotate (const char *new_name)
303 static char *rotation[ROTATION_KEEP];
304 static unsigned int rotation_off;
307 if ('\0' == *new_name)
308 return; /* not a real log file name */
309 discard = rotation[rotation_off % ROTATION_KEEP];
312 /* Note: can't log errors during logging (recursion!), so this
313 operation MUST silently fail... */
314 (void) UNLINK (discard);
315 GNUNET_free (discard);
317 rotation[rotation_off % ROTATION_KEEP] = GNUNET_strdup (new_name);
323 * Setup the log file.
325 * @param tm timestamp for which we should setup logging
326 * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
329 setup_log_file (const struct tm *tm)
331 static char last_fn[PATH_MAX + 1];
332 char fn[PATH_MAX + 1];
338 if (NULL == log_file_name)
339 return GNUNET_SYSERR;
340 if (0 == strftime (fn, sizeof (fn), log_file_name, tm))
341 return GNUNET_SYSERR;
342 leftsquare = strrchr (fn, '[');
343 if ( (NULL != leftsquare) && (']' == leftsquare[1]) )
345 char *logfile_copy = GNUNET_strdup (fn);
347 logfile_copy[leftsquare - fn] = '\0';
348 logfile_copy[leftsquare - fn + 1] = '\0';
354 &logfile_copy[leftsquare - fn + 2]);
355 GNUNET_free (logfile_copy);
357 if (0 == strcmp (fn, last_fn))
358 return GNUNET_OK; /* no change */
359 log_rotate (last_fn);
360 strcpy (last_fn, fn);
362 GNUNET_DISK_directory_create_for_file (fn))
365 "Failed to create directory for `%s': %s\n",
368 return GNUNET_SYSERR;
371 altlog_fd = OPEN (fn, O_APPEND |
374 _S_IREAD | _S_IWRITE);
376 altlog_fd = OPEN (fn, O_APPEND |
378 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
382 if (NULL != GNUNET_stderr)
383 fclose (GNUNET_stderr);
384 dup_return = dup2 (altlog_fd, 2);
385 (void) close (altlog_fd);
386 if (-1 != dup_return)
388 altlog = fdopen (2, "ab");
402 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", fn);
403 return GNUNET_SYSERR;
405 GNUNET_stderr = altlog;
411 * Utility function - adds a parsed definition to logdefs array.
413 * @param component see struct LogDef, can't be NULL
414 * @param file see struct LogDef, can't be NULL
415 * @param function see struct LogDef, can't be NULL
416 * @param from_line see struct LogDef
417 * @param to_line see struct LogDef
418 * @param level see struct LogDef, must be >= 0
419 * @param force see struct LogDef
420 * @return 0 on success, regex-specific error otherwise
423 add_definition (const char *component,
425 const char *function,
434 if (logdefs_size == logdefs_len)
436 memset (&n, 0, sizeof (n));
437 if (0 == strlen (component))
438 component = (char *) ".*";
439 r = regcomp (&n.component_regex, (const char *) component, REG_NOSUB);
444 if (0 == strlen (file))
445 file = (char *) ".*";
446 r = regcomp (&n.file_regex, (const char *) file, REG_NOSUB);
449 regfree (&n.component_regex);
452 if ((NULL == function) || (0 == strlen (function)))
453 function = (char *) ".*";
454 r = regcomp (&n.function_regex, (const char *) function, REG_NOSUB);
457 regfree (&n.component_regex);
458 regfree (&n.file_regex);
461 n.from_line = from_line;
465 logdefs[logdefs_len++] = n;
471 * Decides whether a particular logging call should or should not be allowed
472 * to be made. Used internally by GNUNET_log*()
474 * @param caller_level loglevel the caller wants to use
475 * @param comp component name the caller uses (NULL means that global
476 * component name is used)
477 * @param file file name containing the logging call, usually __FILE__
478 * @param function function which tries to make a logging call,
479 * usually __FUNCTION__
480 * @param line line at which the call is made, usually __LINE__
481 * @return 0 to disallow the call, 1 to allow it
484 GNUNET_get_log_call_status (int caller_level,
487 const char *function,
495 /* Use default component */
496 comp = component_nopid;
498 /* We have no definitions to override globally configured log level,
499 * so just use it right away.
501 if ( (min_level >= 0) && (GNUNET_NO == gnunet_force_log_present) )
502 return caller_level <= min_level;
504 /* Only look for forced definitions? */
505 force_only = min_level >= 0;
506 for (i = 0; i < logdefs_len; i++)
509 if (( (!force_only) || ld->force) &&
510 (line >= ld->from_line && line <= ld->to_line) &&
511 (0 == regexec (&ld->component_regex, comp, 0, NULL, 0)) &&
512 (0 == regexec (&ld->file_regex, file, 0, NULL, 0)) &&
513 (0 == regexec (&ld->function_regex, function, 0, NULL, 0)))
516 return caller_level <= ld->level;
519 /* No matches - use global level, if defined */
521 return caller_level <= min_level;
522 /* All programs/services previously defaulted to WARNING.
523 * Now WE default to WARNING, and THEY default to NULL.
525 return caller_level <= GNUNET_ERROR_TYPE_WARNING;
530 * Utility function - parses a definition
533 * component;file;function;from_line-to_line;level[/component...]
534 * All entries are mandatory, but may be empty.
535 * Empty entries for component, file and function are treated as
536 * "matches anything".
537 * Empty line entry is treated as "from 0 to INT_MAX"
538 * Line entry with only one line is treated as "this line only"
539 * Entry for level MUST NOT be empty.
540 * Entries for component, file and function that consist of a
541 * single character "*" are treated (at the moment) the same way
542 * empty entries are treated (wildcard matching is not implemented (yet?)).
543 * file entry is matched to the end of __FILE__. That is, it might be
544 * a base name, or a base name with leading directory names (some compilers
545 * define __FILE__ to absolute file path).
547 * @param constname name of the environment variable from which to get the
548 * string to be parsed
549 * @param force 1 if definitions found in constname are to be forced
550 * @return number of added definitions
553 parse_definitions (const char *constname, int force)
559 char *function = NULL;
565 int from_line, to_line;
567 int keep_looking = 1;
569 tmp = getenv (constname);
572 def = GNUNET_strdup (tmp);
575 for (p = def, state = 0, start = def; keep_looking; p++)
579 case ';': /* found a field separator */
583 case 0: /* within a component name */
586 case 1: /* within a file name */
589 case 2: /* within a function name */
590 /* after a file name there must be a function name */
593 case 3: /* within a from-to line range */
594 if (strlen (start) > 0)
597 from_line = strtol (start, &t, 10);
598 if ( (0 != errno) || (from_line < 0) )
603 if ( (t < p) && ('-' == t[0]) )
607 to_line = strtol (start, &t, 10);
608 if ( (0 != errno) || (to_line < 0) || (t != p) )
614 else /* one number means "match this line only" */
617 else /* default to 0-max */
627 case '\0': /* found EOL */
629 /* fall through to '/' */
630 case '/': /* found a definition separator */
633 case 4: /* within a log level */
636 level = get_type ((const char *) start);
637 if ( (GNUNET_ERROR_TYPE_INVALID == level) ||
638 (GNUNET_ERROR_TYPE_UNSPECIFIED == level) ||
639 (0 != add_definition (comp, file, function, from_line, to_line,
661 * Utility function - parses GNUNET_LOG and GNUNET_FORCE_LOG.
664 parse_all_definitions ()
666 if (GNUNET_NO == gnunet_log_parsed)
667 parse_definitions ("GNUNET_LOG", 0);
668 gnunet_log_parsed = GNUNET_YES;
669 if (GNUNET_NO == gnunet_force_log_parsed)
670 gnunet_force_log_present =
671 parse_definitions ("GNUNET_FORCE_LOG", 1) > 0 ? GNUNET_YES : GNUNET_NO;
672 gnunet_force_log_parsed = GNUNET_YES;
680 * @param comp default component to use
681 * @param loglevel what types of messages should be logged
682 * @param logfile which file to write log messages to (can be NULL)
683 * @return #GNUNET_OK on success
686 GNUNET_log_setup (const char *comp,
687 const char *loglevel,
690 const char *env_logfile;
694 min_level = get_type (loglevel);
695 #if !defined(GNUNET_CULL_LOGGING)
696 parse_all_definitions ();
699 QueryPerformanceFrequency (&performance_frequency);
701 GNUNET_free_non_null (component);
702 GNUNET_asprintf (&component, "%s-%d", comp, getpid ());
703 GNUNET_free_non_null (component_nopid);
704 component_nopid = GNUNET_strdup (comp);
706 env_logfile = getenv ("GNUNET_FORCE_LOGFILE");
707 if ((NULL != env_logfile) && (strlen (env_logfile) > 0))
708 logfile = env_logfile;
711 GNUNET_free_non_null (log_file_name);
712 log_file_name = GNUNET_STRINGS_filename_expand (logfile);
713 if (NULL == log_file_name)
714 return GNUNET_SYSERR;
717 return setup_log_file (tm);
722 * Add a custom logger. Note that installing any custom logger
723 * will disable the standard logger. When multiple custom loggers
724 * are installed, all will be called. The standard logger will
725 * only be used if no custom loggers are present.
727 * @param logger log function
728 * @param logger_cls closure for @a logger
731 GNUNET_logger_add (GNUNET_Logger logger,
734 struct CustomLogger *entry;
736 entry = GNUNET_new (struct CustomLogger);
737 entry->logger = logger;
738 entry->logger_cls = logger_cls;
739 entry->next = loggers;
745 * Remove a custom logger.
747 * @param logger log function
748 * @param logger_cls closure for @a logger
751 GNUNET_logger_remove (GNUNET_Logger logger,
754 struct CustomLogger *pos;
755 struct CustomLogger *prev;
759 while ((NULL != pos) &&
760 ((pos->logger != logger) || (pos->logger_cls != logger_cls)))
765 GNUNET_assert (NULL != pos);
769 prev->next = pos->next;
774 CRITICAL_SECTION output_message_cs;
779 * Actually output the log message.
781 * @param kind how severe was the issue
782 * @param comp component responsible
783 * @param datestr current date/time
784 * @param msg the actual message
787 output_message (enum GNUNET_ErrorType kind,
792 struct CustomLogger *pos;
795 EnterCriticalSection (&output_message_cs);
797 /* only use the standard logger if no custom loggers are present */
798 if ( (NULL != GNUNET_stderr) &&
801 FPRINTF (GNUNET_stderr,
805 GNUNET_error_type_to_string (kind),
807 fflush (GNUNET_stderr);
812 pos->logger (pos->logger_cls, kind, comp, datestr, msg);
816 LeaveCriticalSection (&output_message_cs);
822 * Flush an existing bulk report to the output.
824 * @param datestr our current timestamp
827 flush_bulk (const char *datestr)
829 char msg[DATE_STR_SIZE + BULK_TRACK_SIZE + 256];
834 if ((0 == last_bulk_time.abs_value_us) || (0 == last_bulk_repeat))
837 last = memchr (last_bulk, '\0', BULK_TRACK_SIZE);
839 last = &last_bulk[BULK_TRACK_SIZE - 1];
840 else if (last != last_bulk)
847 ft = GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration
848 (last_bulk_time), GNUNET_YES);
849 snprintf (msg, sizeof (msg),
850 _("Message `%.*s' repeated %u times in the last %s\n"),
851 BULK_TRACK_SIZE, last_bulk, last_bulk_repeat, ft);
854 output_message (last_bulk_kind, last_bulk_comp, datestr, msg);
855 last_bulk_time = GNUNET_TIME_absolute_get ();
856 last_bulk_repeat = 0;
861 * Ignore the next n calls to the log function.
863 * @param n number of log calls to ignore (could be negative)
864 * @param check_reset #GNUNET_YES to assert that the log skip counter is currently zero
867 GNUNET_log_skip (int n,
874 ok = (0 == skip_log);
887 * Get the number of log calls that are going to be skipped
889 * @return number of log calls to be ignored
892 GNUNET_get_log_skip ()
899 * Output a log message using the default mechanism.
901 * @param kind how severe was the issue
902 * @param comp component responsible
903 * @param message the actual message
904 * @param va arguments to the format string "message"
907 mylog (enum GNUNET_ErrorType kind,
912 char date[DATE_STR_SIZE];
913 char date2[DATE_STR_SIZE];
919 size = VSNPRINTF (NULL, 0, message, vacp) + 1;
920 GNUNET_assert (0 != size);
922 memset (date, 0, DATE_STR_SIZE);
930 offset = GNUNET_TIME_get_offset ();
932 timetmp += offset / 1000;
933 tmptr = localtime (&timetmp);
935 QueryPerformanceCounter (&pc);
938 strcpy (date, "localtime error");
942 strftime (date2, DATE_STR_SIZE, "%b %d %H:%M:%S-%%020llu", tmptr);
943 snprintf (date, sizeof (date), date2,
944 (long long) (pc.QuadPart /
945 (performance_frequency.QuadPart / 1000)));
948 struct timeval timeofday;
950 gettimeofday (&timeofday, NULL);
951 offset = GNUNET_TIME_get_offset ();
954 timeofday.tv_sec += offset / 1000LL;
955 timeofday.tv_usec += (offset % 1000LL) * 1000LL;
956 if (timeofday.tv_usec > 1000000LL)
958 timeofday.tv_usec -= 1000000LL;
964 timeofday.tv_sec += offset / 1000LL;
965 if (timeofday.tv_usec > - (offset % 1000LL) * 1000LL)
967 timeofday.tv_usec += (offset % 1000LL) * 1000LL;
971 timeofday.tv_usec += 1000000LL + (offset % 1000LL) * 1000LL;
975 tmptr = localtime (&timeofday.tv_sec);
978 strcpy (date, "localtime error");
982 strftime (date2, DATE_STR_SIZE, "%b %d %H:%M:%S-%%06u", tmptr);
983 snprintf (date, sizeof (date), date2, timeofday.tv_usec);
986 VSNPRINTF (buf, size, message, va);
988 (void) setup_log_file (tmptr);
989 if ((0 != (kind & GNUNET_ERROR_TYPE_BULK)) &&
990 (0 != last_bulk_time.abs_value_us) &&
991 (0 == strncmp (buf, last_bulk, sizeof (last_bulk))))
994 if ( (GNUNET_TIME_absolute_get_duration (last_bulk_time).rel_value_us >
995 BULK_DELAY_THRESHOLD) ||
996 (last_bulk_repeat > BULK_REPEAT_THRESHOLD) )
1001 strncpy (last_bulk, buf, sizeof (last_bulk));
1002 last_bulk_repeat = 0;
1003 last_bulk_kind = kind;
1004 last_bulk_time = GNUNET_TIME_absolute_get ();
1005 strncpy (last_bulk_comp, comp, COMP_TRACK_SIZE);
1006 output_message (kind, comp, date, buf);
1012 * Main log function.
1014 * @param kind how serious is the error?
1015 * @param message what is the message (format string)
1016 * @param ... arguments for format string
1019 GNUNET_log_nocheck (enum GNUNET_ErrorType kind,
1020 const char *message, ...)
1024 va_start (va, message);
1025 mylog (kind, component, message, va);
1031 * Log function that specifies an alternative component.
1032 * This function should be used by plugins.
1034 * @param kind how serious is the error?
1035 * @param comp component responsible for generating the message
1036 * @param message what is the message (format string)
1037 * @param ... arguments for format string
1040 GNUNET_log_from_nocheck (enum GNUNET_ErrorType kind, const char *comp,
1041 const char *message, ...)
1044 char comp_w_pid[128];
1047 comp = component_nopid;
1049 va_start (va, message);
1050 GNUNET_snprintf (comp_w_pid, sizeof (comp_w_pid), "%s-%d", comp, getpid ());
1051 mylog (kind, comp_w_pid, message, va);
1057 * Convert error type to string.
1059 * @param kind type to convert
1060 * @return string corresponding to the type
1063 GNUNET_error_type_to_string (enum GNUNET_ErrorType kind)
1065 if ((kind & GNUNET_ERROR_TYPE_ERROR) > 0)
1067 if ((kind & GNUNET_ERROR_TYPE_WARNING) > 0)
1068 return _("WARNING");
1069 if ((kind & GNUNET_ERROR_TYPE_INFO) > 0)
1071 if ((kind & GNUNET_ERROR_TYPE_DEBUG) > 0)
1073 if ((kind & ~GNUNET_ERROR_TYPE_BULK) == 0)
1075 return _("INVALID");
1080 * Convert a hash to a string (for printing debug messages).
1081 * This is one of the very few calls in the entire API that is
1084 * @param hc the hash code
1085 * @return string form; will be overwritten by next call to GNUNET_h2s.
1088 GNUNET_h2s (const struct GNUNET_HashCode * hc)
1090 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1092 GNUNET_CRYPTO_hash_to_enc (hc, &ret);
1093 ret.encoding[8] = '\0';
1094 return (const char *) ret.encoding;
1099 * Convert a hash to a string (for printing debug messages).
1100 * This is one of the very few calls in the entire API that is
1103 * @param hc the hash code
1104 * @return string form; will be overwritten by next call to GNUNET_h2s_full.
1107 GNUNET_h2s_full (const struct GNUNET_HashCode * hc)
1109 static struct GNUNET_CRYPTO_HashAsciiEncoded ret;
1111 GNUNET_CRYPTO_hash_to_enc (hc, &ret);
1112 ret.encoding[sizeof (ret) - 1] = '\0';
1113 return (const char *) ret.encoding;
1118 * Convert a peer identity to a string (for printing debug messages).
1119 * This is one of the very few calls in the entire API that is
1122 * @param pid the peer identity
1123 * @return string form of the pid; will be overwritten by next
1124 * call to #GNUNET_i2s.
1127 GNUNET_i2s (const struct GNUNET_PeerIdentity *pid)
1129 static char buf[256];
1132 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1141 * Convert a peer identity to a string (for printing debug messages).
1142 * This is one of the very few calls in the entire API that is
1145 * @param pid the peer identity
1146 * @return string form of the pid; will be overwritten by next
1147 * call to #GNUNET_i2s_full.
1150 GNUNET_i2s_full (const struct GNUNET_PeerIdentity *pid)
1152 static char buf[256];
1155 ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid->public_key);
1163 * Convert a "struct sockaddr*" (IPv4 or IPv6 address) to a string
1164 * (for printing debug messages). This is one of the very few calls
1165 * in the entire API that is NOT reentrant!
1167 * @param addr the address
1168 * @param addrlen the length of the address in @a addr
1169 * @return nicely formatted string for the address
1170 * will be overwritten by next call to #GNUNET_a2s.
1173 GNUNET_a2s (const struct sockaddr *addr,
1177 #define LEN GNUNET_MAX ((INET6_ADDRSTRLEN + 8), \
1178 (1 + sizeof (struct sockaddr_un) - sizeof (sa_family_t)))
1180 #define LEN (INET6_ADDRSTRLEN + 8)
1182 static char buf[LEN];
1185 const struct sockaddr_in *v4;
1186 const struct sockaddr_un *un;
1187 const struct sockaddr_in6 *v6;
1191 return _("unknown address");
1192 switch (addr->sa_family)
1195 if (addrlen != sizeof (struct sockaddr_in))
1196 return "<invalid v4 address>";
1197 v4 = (const struct sockaddr_in *) addr;
1198 inet_ntop (AF_INET, &v4->sin_addr, buf, INET_ADDRSTRLEN);
1199 if (0 == ntohs (v4->sin_port))
1202 GNUNET_snprintf (b2, sizeof (b2), "%u", ntohs (v4->sin_port));
1206 if (addrlen != sizeof (struct sockaddr_in6))
1207 return "<invalid v4 address>";
1208 v6 = (const struct sockaddr_in6 *) addr;
1210 inet_ntop (AF_INET6, &v6->sin6_addr, &buf[1], INET6_ADDRSTRLEN);
1211 if (0 == ntohs (v6->sin6_port))
1214 GNUNET_snprintf (b2, sizeof (b2), "%u", ntohs (v6->sin6_port));
1218 if (addrlen <= sizeof (sa_family_t))
1219 return "<unbound UNIX client>";
1220 un = (const struct sockaddr_un *) addr;
1222 if ('\0' == un->sun_path[0])
1224 memset (buf, 0, sizeof (buf));
1225 GNUNET_snprintf (buf,
1228 (1 == off) ? "@" : "",
1229 (int) (addrlen - sizeof (sa_family_t) - off),
1230 &un->sun_path[off]);
1233 return _("invalid address");
1239 * Log error message about missing configuration option.
1241 * @param kind log level
1242 * @param section section with missing option
1243 * @param option name of missing option
1246 GNUNET_log_config_missing (enum GNUNET_ErrorType kind,
1247 const char *section,
1251 _("Configuration fails to specify option `%s' in section `%s'!\n"),
1258 * Log error message about invalid configuration option value.
1260 * @param kind log level
1261 * @param section section with invalid option
1262 * @param option name of invalid option
1263 * @param required what is required that is invalid about the option
1266 GNUNET_log_config_invalid (enum GNUNET_ErrorType kind,
1267 const char *section,
1269 const char *required)
1272 _("Configuration specifies invalid value for option `%s' in section `%s': %s\n"),
1273 option, section, required);
1280 void __attribute__ ((constructor))
1281 GNUNET_util_cl_init ()
1283 GNUNET_stderr = stderr;
1285 GNInitWinEnv (NULL);
1288 if (!InitializeCriticalSectionAndSpinCount (&output_message_cs, 0x00000400))
1297 void __attribute__ ((destructor))
1298 GNUNET_util_cl_fini ()
1301 DeleteCriticalSection (&output_message_cs);
1304 GNShutdownWinEnv ();
1308 /* end of common_logging.c */