From c1140df889aeb90f944c1caabdf6f73522dbb250 Mon Sep 17 00:00:00 2001 From: Stefano Brivio Date: Sat, 15 Jun 2024 00:25:23 +0200 Subject: log: Add _perror() logging function variants In many places, we have direct perror() calls, which completely bypass logging functions and log files. They are definitely convenient: offer similar convenience with _perror() logging variants, so that we can drop those direct perror() calls. Signed-off-by: Stefano Brivio Reviewed-by: David Gibson --- log.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'log.c') diff --git a/log.c b/log.c index 0199eb4..7182acb 100644 --- a/log.c +++ b/log.c @@ -78,6 +78,11 @@ void vlogmsg(int pri, const char *format, va_list ap) } } +/** + * logmsg() - vlogmsg() wrapper for variable argument lists + * @pri: Facility and level map, same as priority for vsyslog() + * @format: Message + */ void logmsg(int pri, const char *format, ...) { va_list ap; @@ -87,6 +92,23 @@ void logmsg(int pri, const char *format, ...) va_end(ap); } +/** + * logmsg_perror() - vlogmsg() wrapper with perror()-like functionality + * @pri: Facility and level map, same as priority for vsyslog() + * @format: Message + */ +void logmsg_perror(int pri, const char *format, ...) +{ + int errno_copy = errno; + va_list ap; + + va_start(ap, format); + vlogmsg(pri, format, ap); + va_end(ap); + + logmsg(pri, ": %s", strerror(errno_copy)); +} + /* Prefixes for log file messages, indexed by priority */ const char *logfile_prefix[] = { NULL, NULL, NULL, /* Unused: LOG_EMERG, LOG_ALERT, LOG_CRIT */ -- cgit v1.2.3