59 version_rename(log_channel chan) {  in version_rename()  argument
64 	ver = chan->out.file.versions;  in version_rename()
72 	if (strlen(chan->out.file.name) > (size_t)(PATH_MAX-3))  in version_rename()
75 		sprintf(old_name, "%s.%d", chan->out.file.name, ver-1);  in version_rename()
76 		sprintf(new_name, "%s.%d", chan->out.file.name, ver);  in version_rename()
79 	sprintf(new_name, "%s.0", chan->out.file.name);  in version_rename()
80 	(void)isc_movefile(chan->out.file.name, new_name);  in version_rename()
84 log_open_stream(log_channel chan) {  in log_open_stream()  argument
90 	if (chan == NULL || chan->type != log_file) {  in log_open_stream()
98 	if (chan->out.file.stream != NULL)  in log_open_stream()
99 		return (chan->out.file.stream);  in log_open_stream()
101 	if (stat(chan->out.file.name, &sb) < 0) {  in log_open_stream()
105 			       chan->out.file.name, strerror(errno));  in log_open_stream()
106 			chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
113 	if (chan->out.file.versions) {  in log_open_stream()
117 			       chan->out.file.name);  in log_open_stream()
118 			chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
126 	if ((chan->flags & LOG_TRUNCATE) != 0) {  in log_open_stream()
128 			(void)unlink(chan->out.file.name);  in log_open_stream()
133 			       chan->out.file.name);  in log_open_stream()
134 			chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
140 	fd = open(chan->out.file.name, flags,  in log_open_stream()
144 		       chan->out.file.name, strerror(errno));  in log_open_stream()
145 		chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
151 		chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
154 	(void) fchown(fd, chan->out.file.owner, chan->out.file.group);  in log_open_stream()
156 	chan->out.file.stream = stream;  in log_open_stream()
161 log_close_stream(log_channel chan) {  in log_close_stream()  argument
164 	if (chan == NULL || chan->type != log_file) {  in log_close_stream()
168 	stream = chan->out.file.stream;  in log_close_stream()
169 	chan->out.file.stream = NULL;  in log_close_stream()
189 log_get_stream(log_channel chan) {  in log_get_stream()  argument
190 	if (chan == NULL || chan->type != log_file) {  in log_get_stream()
194 	return (chan->out.file.stream);  in log_get_stream()
198 log_get_filename(log_channel chan) {  in log_get_filename()  argument
199 	if (chan == NULL || chan->type != log_file) {  in log_get_filename()
203 	return (chan->out.file.name);  in log_get_filename()
207 log_check_channel(log_context lc, int level, log_channel chan) {  in log_check_channel()  argument
220 	if ((chan->flags & (LOG_CHANNEL_BROKEN|LOG_CHANNEL_OFF)) != 0)  in log_check_channel()
224 	if ((chan->flags & LOG_REQUIRE_DEBUG) && !debugging)  in log_check_channel()
228 	if ((chan->flags & LOG_USE_CONTEXT_LEVEL) != 0) {  in log_check_channel()
231 		chan_level = chan->level;  in log_check_channel()
276 	log_channel chan;  in log_vwrite()  local
354 		chan = lcl->channel;  in log_vwrite()
356 		if (!log_check_channel(lc, level, chan))  in log_vwrite()
369 		switch (chan->type) {  in log_vwrite()
375 			syslog(chan->out.facility|syslog_priority[pri],  in log_vwrite()
377 			       (chan->flags & LOG_TIMESTAMP) ?	time_buf : "",  in log_vwrite()
378 			       (chan->flags & LOG_PRINT_CATEGORY) ?  in log_vwrite()
380 			       (chan->flags & LOG_PRINT_LEVEL) ?  in log_vwrite()
385 			stream = chan->out.file.stream;  in log_vwrite()
387 				stream = log_open_stream(chan);  in log_vwrite()
391 			if (chan->out.file.max_size != ULONG_MAX) {  in log_vwrite()
397 				    chan->out.file.max_size) {  in log_vwrite()
404 					log_close_stream(chan);  in log_vwrite()
405 					version_rename(chan);  in log_vwrite()
406 					stream = log_open_stream(chan);  in log_vwrite()
412 				(chan->flags & LOG_TIMESTAMP) ?	time_buf : "",  in log_vwrite()
413 				(chan->flags & LOG_PRINT_CATEGORY) ?  in log_vwrite()
415 				(chan->flags & LOG_PRINT_LEVEL) ?  in log_vwrite()
470 	log_channel chan;  in log_free_context()  local
478 			chan = lcl->channel;  in log_free_context()
479 			(void)log_free_channel(chan);  in log_free_context()
488 log_add_channel(log_context lc, int category, log_channel chan) {  in log_add_channel()  argument
501 	lcl->channel = chan;  in log_add_channel()
504 	chan->references++;  in log_add_channel()
509 log_remove_channel(log_context lc, int category, log_channel chan) {  in log_remove_channel()  argument
522 		if (lcl->channel == chan) {  in log_remove_channel()
523 			log_free_channel(chan);  in log_remove_channel()
581 	log_channel chan;  in log_new_syslog_channel()  local
583 	chan = memget(sizeof (struct log_channel));  in log_new_syslog_channel()
584 	if (chan == NULL) {  in log_new_syslog_channel()
588 	chan->type = log_syslog;  in log_new_syslog_channel()
589 	chan->flags = flags;  in log_new_syslog_channel()
590 	chan->level = level;  in log_new_syslog_channel()
591 	chan->out.facility = facility;  in log_new_syslog_channel()
592 	chan->references = 0;  in log_new_syslog_channel()
593 	return (chan);  in log_new_syslog_channel()
600 	log_channel chan;  in log_new_file_channel()  local
602 	chan = memget(sizeof (struct log_channel));  in log_new_file_channel()
603 	if (chan == NULL) {  in log_new_file_channel()
607 	chan->type = log_file;  in log_new_file_channel()
608 	chan->flags = flags;  in log_new_file_channel()
609 	chan->level = level;  in log_new_file_channel()
619 		chan->out.file.name_size = ((len / 256) + 1) * 256;  in log_new_file_channel()
620 		chan->out.file.name = memget(chan->out.file.name_size);  in log_new_file_channel()
621 		if (chan->out.file.name == NULL) {  in log_new_file_channel()
622 			memput(chan, sizeof (struct log_channel));  in log_new_file_channel()
627 		strcpy(chan->out.file.name, name);  in log_new_file_channel()
629 		chan->out.file.name_size = 0;  in log_new_file_channel()
630 		chan->out.file.name = NULL;  in log_new_file_channel()
632 	chan->out.file.stream = stream;  in log_new_file_channel()
633 	chan->out.file.versions = versions;  in log_new_file_channel()
634 	chan->out.file.max_size = max_size;  in log_new_file_channel()
635 	chan->out.file.owner = getuid();  in log_new_file_channel()
636 	chan->out.file.group = getgid();  in log_new_file_channel()
637 	chan->references = 0;  in log_new_file_channel()
638 	return (chan);  in log_new_file_channel()
642 log_set_file_owner(log_channel chan, uid_t owner, gid_t group) {  in log_set_file_owner()  argument
643 	if (chan->type != log_file) {  in log_set_file_owner()
647 	chan->out.file.owner = owner;  in log_set_file_owner()
648 	chan->out.file.group = group;  in log_set_file_owner()
654 	log_channel chan;  in log_new_null_channel()  local
656 	chan = memget(sizeof (struct log_channel));  in log_new_null_channel()
657 	if (chan == NULL) {  in log_new_null_channel()
661 	chan->type = log_null;  in log_new_null_channel()
662 	chan->flags = LOG_CHANNEL_OFF;  in log_new_null_channel()
663 	chan->level = log_info;  in log_new_null_channel()
664 	chan->references = 0;  in log_new_null_channel()
665 	return (chan);  in log_new_null_channel()
669 log_inc_references(log_channel chan) {  in log_inc_references()  argument
670 	if (chan == NULL) {  in log_inc_references()
674 	chan->references++;  in log_inc_references()
679 log_dec_references(log_channel chan) {  in log_dec_references()  argument
680 	if (chan == NULL || chan->references <= 0) {  in log_dec_references()
684 	chan->references--;  in log_dec_references()
689 log_get_channel_type(log_channel chan) {  in log_get_channel_type()  argument
690 	REQUIRE(chan != NULL);  in log_get_channel_type()
692 	return (chan->type);  in log_get_channel_type()
696 log_free_channel(log_channel chan) {  in log_free_channel()  argument
697 	if (chan == NULL || chan->references <= 0) {  in log_free_channel()
701 	chan->references--;  in log_free_channel()
702 	if (chan->references == 0) {  in log_free_channel()
703 		if (chan->type == log_file) {  in log_free_channel()
704 			if ((chan->flags & LOG_CLOSE_STREAM) &&  in log_free_channel()
705 			    chan->out.file.stream != NULL)  in log_free_channel()
706 				(void)fclose(chan->out.file.stream);  in log_free_channel()
707 			if (chan->out.file.name != NULL)  in log_free_channel()
708 				memput(chan->out.file.name,  in log_free_channel()
709 				       chan->out.file.name_size);  in log_free_channel()
711 		memput(chan, sizeof (struct log_channel));  in log_free_channel()