From: Konrad Kuchciak <k.kuchciak@samsung.com>
Date: Wed, 13 Sep 2017 14:00:24 +0000 (+0200)
Subject: Add possibility to log to /dev/kmsg
X-Git-Tag: submit/tizen/20170919.135738~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0a811a044e0cf6df29e7f62ccc98d8c91a1ae9f1;p=platform%2Fcore%2Fsystem%2Ffaultd.git

Add possibility to log to /dev/kmsg

Change-Id: I531f80e6506f1379b3542abc57801c453daad500
Signed-off-by: Konrad Kuchciak <k.kuchciak@samsung.com>
---

diff --git a/src/util/log.c b/src/util/log.c
index ffe2dac..2317d9e 100644
--- a/src/util/log.c
+++ b/src/util/log.c
@@ -97,3 +97,36 @@ int log_internal(int level,
 	fflush(stderr);
 	return -error;
 }
+
+int log_kmsg(const char *format, ...)
+{
+	FILE *fd = NULL;
+	char *buffer = NULL;
+	va_list ap;
+	int ret;
+
+	va_start(ap, format);
+	ret = vasprintf(&buffer, format, ap);
+	va_end(ap);
+
+	if (ret < 0) {
+		ret = errno;
+		goto cleanup;
+	}
+
+	fd = fopen("/dev/kmsg", "w");
+	if (!fd) {
+		ret = errno;
+		goto cleanup;
+	}
+
+	fprintf(fd, "faultd: %s\n", buffer);
+	fclose(fd);
+	ret = 0;
+
+cleanup:
+	if (buffer)
+		free(buffer);
+
+	return ret;
+}
diff --git a/src/util/log.h b/src/util/log.h
index 3537514..5c89a57 100644
--- a/src/util/log.h
+++ b/src/util/log.h
@@ -29,4 +29,5 @@ int log_get_max_level(void);
 void log_set_max_level(int level);
 int log_internal(int level, int error, const char *file, int __line, const char *func, const char *format, ...) __attribute__ ((format (printf, 6, 7)));
 int log_parse_level_name(const char *name);
+int log_kmsg(const char *format, ...);
 #endif  /* _FAUTLD_LOG_H */