From: Michael Tremer <michael.tremer@ipfire.org>
Date: Mon, 11 May 2026 09:02:28 +0000 (+0000)
Subject: main: Create a basic logger
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99cc33a8c99c45cc60f1933d48e818f84f0fc003;p=zone-sync.git

main: Create a basic logger

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/main.c b/main.c
index 4feebc0..443dd28 100644
--- a/main.c
+++ b/main.c
@@ -19,6 +19,7 @@
 #############################################################################*/
 
 #include <argp.h>
+#include <stdio.h>
 #include <syslog.h>
 
 #include <isc/mem.h>
@@ -30,6 +31,51 @@ typedef struct ctx {
 	isc_mem_t* memctx;
 } ctx_t;
 
+static void logger(ctx_t* ctx, int priority, const char* format, ...) {
+	char buffer[4096];
+	FILE* f = NULL;
+	ssize_t length;
+	va_list args;
+
+	// Don't log if below log level
+	if (priority > ctx->log_level)
+		return;
+
+	// Format the log message
+	va_start(args, format);
+	length = vsnprintf(buffer, sizeof(buffer), format, args);
+	va_end(args);
+
+	// Fail if we could not format the string
+	if (length < 0)
+		return;
+
+	// Select the output stream
+	switch (priority) {
+		case LOG_ERR:
+			f = stderr;
+			break;
+
+		default:
+			f = stdout;
+			break;
+	}
+
+	// Write to the output stream
+	fwrite(buffer, 1, length, f);
+}
+
+// Logging functions
+#define INFO(ctx, ...) logger(ctx, LOG_INFO, __VA_ARGS__)
+#define ERROR(ctx, ...) logger(ctx, LOG_ERR, __VA_ARGS__)
+#define DEBUG(ctx, ...) logger(ctx, LOG_DEBUG, __VA_ARGS__)
+
+static void run_loop(void* data) {
+	ctx_t* ctx = data;
+
+	DEBUG(ctx, "Event loop started\n");
+}
+
 const char* argp_program_version = PACKAGE_VERSION;
 
 static const char* args_doc = "TODO";