From: Alexander Bainbridge-Sedivy <alex.bainbridge@inkbridge.io>
Date: Mon, 25 May 2026 16:50:32 +0000 (-0400)
Subject: backtrace.c: fix missing '#' frame prefix and NULL function pointer in dprintf
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=95102ee57726d2ec716c61409448cee1fb2623ea;p=thirdparty%2Ffreeradius-server.git

backtrace.c: fix missing '#' frame prefix and NULL function pointer in dprintf
---

diff --git a/src/lib/util/backtrace.c b/src/lib/util/backtrace.c
index bdbb0460c24..b387ae1b481 100644
--- a/src/lib/util/backtrace.c
+++ b/src/lib/util/backtrace.c
@@ -83,18 +83,18 @@ static void backtrace_info_print(fr_bt_info_frame_t *frame, int fd, bool trim_pa
 		return;
 	}
 	else if (!frame->filename) {
-		dprintf(fd, "%u: 0x%lx %s in %s()\n",
+		dprintf(fd, "#%u: 0x%lx %s in %s()\n",
 			frame->frameno,
 			(unsigned long)frame->pc,
 			trim_path ? fr_filename(frame->library) : frame->library,
-			frame->function);
+			frame->function ? frame->function : "??");
 		return;
 	}
 	dprintf(fd, "#%u: 0x%lx %s in %s() at %s:%d\n",
 		frame->frameno,
 		(unsigned long)frame->pc,
 		trim_path ? fr_filename(frame->library) : frame->library,
-		frame->function,
+		frame->function ? frame->function : "??",
 		trim_path ? fr_filename_common_trim(frame->filename, frame->library) : frame->filename,
 		frame->lineno);