From: Tobias Stoeckmann <tobias@stoeckmann.org>
Date: Sun, 7 Jun 2026 14:44:36 +0000 (+0200)
Subject: read_data_into_fd: Print correct error code
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ffbc3a0a1e2f5f391f1374c8ca8280fa73ff218;p=thirdparty%2Flibarchive.git

read_data_into_fd: Print correct error code

If lseek fails to seek to correct position, e.g. because the descriptor
is in append mode, do not use errno because it's not set.

In such a case, fall back to ARCHIVE_ERRNO_MISC.

Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
---

diff --git a/libarchive/archive_read_data_into_fd.c b/libarchive/archive_read_data_into_fd.c
index 8fd5e1244..8d56d7042 100644
--- a/libarchive/archive_read_data_into_fd.c
+++ b/libarchive/archive_read_data_into_fd.c
@@ -56,7 +56,9 @@ pad_to(struct archive *a, int fd, int can_lseek,
 		actual_offset = lseek(fd,
 		    target_offset - actual_offset, SEEK_CUR);
 		if (actual_offset != target_offset) {
-			archive_set_error(a, errno, "Seek error");
+			archive_set_error(a,
+			    actual_offset == -1 ? errno : ARCHIVE_ERRNO_MISC,
+			    "Seek error");
 			return (ARCHIVE_FATAL);
 		}
 		return (ARCHIVE_OK);