From 8d6e110914e4a3fa6f9091eb98d9865f48b0de95 Mon Sep 17 00:00:00 2001
From: Kalo Zsombor <bibi@andrews.hu>
Date: Thu, 4 Sep 2025 23:09:11 +0200
Subject: [PATCH 1/3] logging with timestamp

---
 sockssrv.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/sockssrv.c b/sockssrv.c
index d59fc27..52fb6e0 100644
--- a/sockssrv.c
+++ b/sockssrv.c
@@ -35,6 +35,8 @@
 #include <limits.h>
 #include "server.h"
 #include "sblist.h"
+#include <time.h>
+#include <stdarg.h>
 
 /* timeout in microseconds on resource exhaustion to prevent excessive
    cpu usage. */
@@ -111,7 +113,20 @@ struct thread {
 /* we log to stderr because it's not using line buffering, i.e. malloc which would need
    locking when called from different threads. for the same reason we use dprintf,
    which writes directly to an fd. */
-#define dolog(...) do { if(!quiet) dprintf(2, __VA_ARGS__); } while(0)
+static inline void dolog(const char *fmt, ...) {
+    char t[32] = {};
+    struct tm tm_buf;
+    time_t secs = time(NULL);
+
+    va_list args;
+    va_start(args, fmt);
+
+    strftime(t, sizeof(t), "[%Y-%m-%d %T] ", localtime_r(&secs, &tm_buf));
+    dprintf(fileno(stderr), "%s", t);
+    vdprintf(fileno(stderr), fmt, args);
+
+    va_end(args);
+}
 #else
 static void dolog(const char* fmt, ...) { }
 #endif

From 0a5f9bfc206e48595e829442b1316321ba34923a Mon Sep 17 00:00:00 2001
From: Kalo Zsombor <bibi@andrews.hu>
Date: Thu, 4 Sep 2025 23:48:38 +0200
Subject: [PATCH 2/3] add startup message

---
 sockssrv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sockssrv.c b/sockssrv.c
index 52fb6e0..3193606 100644
--- a/sockssrv.c
+++ b/sockssrv.c
@@ -494,6 +494,7 @@ int main(int argc, char** argv) {
 		return 1;
 	}
 	server = &s;
+	dolog("Listening on %s:%d\n", listenip, port);
 
 	while(1) {
 		collect(threads);

From bfb9e17bdadb8479a64bfcaf959ad517f0c13c13 Mon Sep 17 00:00:00 2001
From: Kalo Zsombor <bibi@andrews.hu>
Date: Thu, 3 Sep 2026 22:27:03 +0200
Subject: [PATCH 3/3] use localtime for strftime when logging

---
 sockssrv.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/sockssrv.c b/sockssrv.c
index e4fd707..db5b54a 100644
--- a/sockssrv.c
+++ b/sockssrv.c
@@ -113,15 +113,22 @@ struct thread {
 /* we log to stderr because it's not using line buffering, i.e. malloc which would need
    locking when called from different threads. for the same reason we use dprintf,
    which writes directly to an fd. */
-static inline void dolog(const char *fmt, ...) {
-    char t[32] = {};
-    struct tm tm_buf;
+static void dolog(const char *fmt, ...) {
+    char t[32];
+    struct tm *tm_buf;
     time_t secs = time(NULL);
 
+    if (quiet)
+        return;
+
     va_list args;
     va_start(args, fmt);
 
-    strftime(t, sizeof(t), "[%Y-%m-%d %T] ", localtime_r(&secs, &tm_buf));
+    tm_buf = localtime(&secs);
+    if (tm_buf)
+        strftime(t, sizeof(t), "[%Y-%m-%d %T] ", tm_buf);
+    else
+        t[0] = '\0';
     dprintf(fileno(stderr), "%s", t);
     vdprintf(fileno(stderr), fmt, args);