added wolf_log_strerror and fixed itoa prototype

1 files changed, 28 insertions, 1 deletions

diff --git a/src/log/log.c b/src/log/log.c
index 56001a1..d8b7e20 100644
--- a/src/log/log.c
+++ b/src/log/log.c
@@ -24,6 +24,7 @@
 					   strlcat */
 #include "port/time.h"			/* for localtime_r, strftime, time
 					 * time_t, struct tm */
+#include "port/stdlib.h"		/* for abort, itoa */
 #include "port/unused.h"		/* for WOLF_UNUSED */
 #define DEFAULT_TEXT_DOMAIN "libwolf"
 #include "port/gettext.h"		/* for i18n */
@@ -31,7 +32,6 @@
 #include <stdarg.h>			/* for variable arguments */
 #include <errno.h>			/* for errno */
 #include <assert.h>			/* for assertions */
-#include <stdlib.h>			/* for abort */
 
 #if defined HAVE_SYSLOG_H
 #include <syslog.h>			/* for syslog, closelog and levels */
@@ -823,4 +823,31 @@ void wolf_log_win32_ap( wolf_log_level_t level, int category_id, int message_id,
 
 	wolf_log_ap( level, category_id, message_id, new_format, ap );
 }
+
 #endif /* defined _WIN32 */
+
+void wolf_log_strerror( wolf_log_level_t level, int category_id, int message_id, const char *format, ... ) {
+	va_list ap;
+
+	va_start( ap, format );
+	wolf_log_strerror_ap( level, category_id, message_id, format, ap );
+	va_end( ap );
+}
+
+void wolf_log_strerror_ap( wolf_log_level_t level, int category_id, int message_id, const char *format, va_list ap ) {
+	int error_no = errno;
+	char errbuf[512];
+	char new_format[1024];
+	char int_buf[20];
+
+	(void)strerror_r( error_no, errbuf, 1024 );
+
+	strlcpy( new_format, format, 1024 );
+	strlcat( new_format, ": ", 1024 );
+	strlcat( new_format, errbuf, 1024 );
+	strlcat( new_format, " (", 1024 );
+	strlcat( new_format, itoa( error_no, int_buf, 10 ), 1024 );
+	strlcat( new_format, ")", 1024 );
+
+	wolf_log_ap( level, category_id, message_id, new_format, ap );
+}