add minimal logging framework

1 files changed, 38 insertions, 0 deletions

diff --git a/log.c b/log.c
new file mode 100644
index 0000000000..8d29213934
--- /dev/null
+++ b/log.c
@@ -0,0 +1,38 @@
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "log.h"
+
+void log_meta(
+        int level,
+        const char*file,
+        int line,
+        const char *func,
+        const char *format, ...) {
+
+        const char *prefix, *suffix;
+        va_list ap;
+
+        if (LOG_PRI(level) <= LOG_ERR) {
+                prefix = "\x1B[1;31m";
+                suffix = "\x1B[0m";
+        } else {
+                prefix = "";
+                suffix = "";
+        }
+
+        va_start(ap, format);
+
+        fprintf(stderr, "(%s:%u) %s", file, line, prefix);
+        vfprintf(stderr, format, ap);
+        fprintf(stderr, "%s\n", suffix);
+
+        va_end(ap);
+
+}