55 version_rename(log_channel chan) {  in version_rename()  argument
60 	ver = chan->out.file.versions;  in version_rename()
68 	if (strlen(chan->out.file.name) > (size_t)(PATH_MAX-3))  in version_rename()
71 		sprintf(old_name, "%s.%d", chan->out.file.name, ver-1);  in version_rename()
72 		sprintf(new_name, "%s.%d", chan->out.file.name, ver);  in version_rename()
75 	sprintf(new_name, "%s.0", chan->out.file.name);  in version_rename()
76 	(void)isc_movefile(chan->out.file.name, new_name);  in version_rename()
80 log_open_stream(log_channel chan) {  in log_open_stream()  argument
86 	if (chan == NULL || chan->type != log_file) {  in log_open_stream()
94 	if (chan->out.file.stream != NULL)  in log_open_stream()
95 		return (chan->out.file.stream);  in log_open_stream()
97 	if (stat(chan->out.file.name, &sb) < 0) {  in log_open_stream()
101 			       chan->out.file.name, strerror(errno));  in log_open_stream()
102 			chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
109 	if (chan->out.file.versions) {  in log_open_stream()
113 			       chan->out.file.name);  in log_open_stream()
114 			chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
122 	if ((chan->flags & LOG_TRUNCATE) != 0) {  in log_open_stream()
124 			(void)unlink(chan->out.file.name);  in log_open_stream()
129 			       chan->out.file.name);  in log_open_stream()
130 			chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
136 	fd = open(chan->out.file.name, flags,  in log_open_stream()
140 		       chan->out.file.name, strerror(errno));  in log_open_stream()
141 		chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
147 		chan->flags |= LOG_CHANNEL_BROKEN;  in log_open_stream()
150 	(void) fchown(fd, chan->out.file.owner, chan->out.file.group);  in log_open_stream()
152 	chan->out.file.stream = stream;  in log_open_stream()
157 log_close_stream(log_channel chan) {  in log_close_stream()  argument
160 	if (chan == NULL || chan->type != log_file) {  in log_close_stream()
164 	stream = chan->out.file.stream;  in log_close_stream()
165 	chan->out.file.stream = NULL;  in log_close_stream()
185 log_get_stream(log_channel chan) {  in log_get_stream()  argument
186 	if (chan == NULL || chan->type != log_file) {  in log_get_stream()
190 	return (chan->out.file.stream);  in log_get_stream()
194 log_get_filename(log_channel chan) {  in log_get_filename()  argument
195 	if (chan == NULL || chan->type != log_file) {  in log_get_filename()
199 	return (chan->out.file.name);  in log_get_filename()
203 log_check_channel(log_context lc, int level, log_channel chan) {  in log_check_channel()  argument
216 	if ((chan->flags & (LOG_CHANNEL_BROKEN|LOG_CHANNEL_OFF)) != 0)  in log_check_channel()
220 	if ((chan->flags & LOG_REQUIRE_DEBUG) && !debugging)  in log_check_channel()
224 	if ((chan->flags & LOG_USE_CONTEXT_LEVEL) != 0) {  in log_check_channel()
227 		chan_level = chan->level;  in log_check_channel()
272 	log_channel chan;  in log_vwrite()  local
350 		chan = lcl->channel;  in log_vwrite()
352 		if (!log_check_channel(lc, level, chan))  in log_vwrite()
365 		switch (chan->type) {  in log_vwrite()
371 			syslog(chan->out.facility|syslog_priority[pri],  in log_vwrite()
373 			       (chan->flags & LOG_TIMESTAMP) ?	time_buf : "",  in log_vwrite()
374 			       (chan->flags & LOG_PRINT_CATEGORY) ?  in log_vwrite()
376 			       (chan->flags & LOG_PRINT_LEVEL) ?  in log_vwrite()
381 			stream = chan->out.file.stream;  in log_vwrite()
383 				stream = log_open_stream(chan);  in log_vwrite()
387 			if (chan->out.file.max_size != ULONG_MAX) {  in log_vwrite()
393 				    chan->out.file.max_size) {  in log_vwrite()
400 					log_close_stream(chan);  in log_vwrite()
401 					version_rename(chan);  in log_vwrite()
402 					stream = log_open_stream(chan);  in log_vwrite()
408 				(chan->flags & LOG_TIMESTAMP) ?	time_buf : "",  in log_vwrite()
409 				(chan->flags & LOG_PRINT_CATEGORY) ?  in log_vwrite()
411 				(chan->flags & LOG_PRINT_LEVEL) ?  in log_vwrite()
466 	log_channel chan;  in log_free_context()  local
474 			chan = lcl->channel;  in log_free_context()
475 			(void)log_free_channel(chan);  in log_free_context()
484 log_add_channel(log_context lc, int category, log_channel chan) {  in log_add_channel()  argument
497 	lcl->channel = chan;  in log_add_channel()
500 	chan->references++;  in log_add_channel()
505 log_remove_channel(log_context lc, int category, log_channel chan) {  in log_remove_channel()  argument
518 		if (lcl->channel == chan) {  in log_remove_channel()
519 			log_free_channel(chan);  in log_remove_channel()
577 	log_channel chan;  in log_new_syslog_channel()  local
579 	chan = memget(sizeof (struct log_channel));  in log_new_syslog_channel()
580 	if (chan == NULL) {  in log_new_syslog_channel()
584 	chan->type = log_syslog;  in log_new_syslog_channel()
585 	chan->flags = flags;  in log_new_syslog_channel()
586 	chan->level = level;  in log_new_syslog_channel()
587 	chan->out.facility = facility;  in log_new_syslog_channel()
588 	chan->references = 0;  in log_new_syslog_channel()
589 	return (chan);  in log_new_syslog_channel()
596 	log_channel chan;  in log_new_file_channel()  local
598 	chan = memget(sizeof (struct log_channel));  in log_new_file_channel()
599 	if (chan == NULL) {  in log_new_file_channel()
603 	chan->type = log_file;  in log_new_file_channel()
604 	chan->flags = flags;  in log_new_file_channel()
605 	chan->level = level;  in log_new_file_channel()
615 		chan->out.file.name_size = ((len / 256) + 1) * 256;  in log_new_file_channel()
616 		chan->out.file.name = memget(chan->out.file.name_size);  in log_new_file_channel()
617 		if (chan->out.file.name == NULL) {  in log_new_file_channel()
618 			memput(chan, sizeof (struct log_channel));  in log_new_file_channel()
623 		strcpy(chan->out.file.name, name);  in log_new_file_channel()
625 		chan->out.file.name_size = 0;  in log_new_file_channel()
626 		chan->out.file.name = NULL;  in log_new_file_channel()
628 	chan->out.file.stream = stream;  in log_new_file_channel()
629 	chan->out.file.versions = versions;  in log_new_file_channel()
630 	chan->out.file.max_size = max_size;  in log_new_file_channel()
631 	chan->out.file.owner = getuid();  in log_new_file_channel()
632 	chan->out.file.group = getgid();  in log_new_file_channel()
633 	chan->references = 0;  in log_new_file_channel()
634 	return (chan);  in log_new_file_channel()
638 log_set_file_owner(log_channel chan, uid_t owner, gid_t group) {  in log_set_file_owner()  argument
639 	if (chan->type != log_file) {  in log_set_file_owner()
643 	chan->out.file.owner = owner;  in log_set_file_owner()
644 	chan->out.file.group = group;  in log_set_file_owner()
650 	log_channel chan;  in log_new_null_channel()  local
652 	chan = memget(sizeof (struct log_channel));  in log_new_null_channel()
653 	if (chan == NULL) {  in log_new_null_channel()
657 	chan->type = log_null;  in log_new_null_channel()
658 	chan->flags = LOG_CHANNEL_OFF;  in log_new_null_channel()
659 	chan->level = log_info;  in log_new_null_channel()
660 	chan->references = 0;  in log_new_null_channel()
661 	return (chan);  in log_new_null_channel()
665 log_inc_references(log_channel chan) {  in log_inc_references()  argument
666 	if (chan == NULL) {  in log_inc_references()
670 	chan->references++;  in log_inc_references()
675 log_dec_references(log_channel chan) {  in log_dec_references()  argument
676 	if (chan == NULL || chan->references <= 0) {  in log_dec_references()
680 	chan->references--;  in log_dec_references()
685 log_get_channel_type(log_channel chan) {  in log_get_channel_type()  argument
686 	REQUIRE(chan != NULL);  in log_get_channel_type()
688 	return (chan->type);  in log_get_channel_type()
692 log_free_channel(log_channel chan) {  in log_free_channel()  argument
693 	if (chan == NULL || chan->references <= 0) {  in log_free_channel()
697 	chan->references--;  in log_free_channel()
698 	if (chan->references == 0) {  in log_free_channel()
699 		if (chan->type == log_file) {  in log_free_channel()
700 			if ((chan->flags & LOG_CLOSE_STREAM) &&  in log_free_channel()
701 			    chan->out.file.stream != NULL)  in log_free_channel()
702 				(void)fclose(chan->out.file.stream);  in log_free_channel()
703 			if (chan->out.file.name != NULL)  in log_free_channel()
704 				memput(chan->out.file.name,  in log_free_channel()
705 				       chan->out.file.name_size);  in log_free_channel()
707 		memput(chan, sizeof (struct log_channel));  in log_free_channel()