From: ethan-thompson <ethan.thompson@networkradius.com>
Date: Mon, 16 Mar 2026 16:21:51 +0000 (-0400)
Subject: restore write errno after ftruncate in partial header write path
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=985b331fd501ef0f7e05965bfbb5cb2d49d47f50;p=thirdparty%2Ffreeradius-server.git

restore write errno after ftruncate in partial header write path

Signed-off-by: ethan-thompson <ethan.thompson@networkradius.com>
---

diff --git a/src/modules/rlm_linelog/file.c b/src/modules/rlm_linelog/file.c
index e63c76db425..625db65c04c 100644
--- a/src/modules/rlm_linelog/file.c
+++ b/src/modules/rlm_linelog/file.c
@@ -190,11 +190,11 @@ static void _batch_write(rlm_linelog_file_t *file)
 	write_error = errno;
 	if (ret >= 0) {
 		if (ret < (ssize_t)(header_len)) {
-			ret = ftruncate(fd, 0);
-			if (ret < 0) {
+			if (ftruncate(fd, 0) < 0) {
 				ERROR("Failed truncating file \"%s\" after partial header write - %s",
 				      file->filename, fr_syserror(errno));
 			}
+			errno = write_error;
 
 			PERROR("Failed writing header to \"%s\"", file->filename);
 			goto error;