X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Fheader.c;h=e223ce9fa291f1e3756fa0eae2c400cadf1c6996;hb=5ad50d41e2ba1e89d4f930a654f7d0ff2ac3fb0b;hp=57cea04f1ae96442be014cfa8f9559924be01ecc;hpb=a10684cffdec166b85f85e09c8567f48e73876ac;p=wimlib

diff --git a/src/header.c b/src/header.c
index 57cea04f..e223ce9f 100644
--- a/src/header.c
+++ b/src/header.c
@@ -96,7 +96,9 @@ read_wim_header(WIMStruct *wim, struct wim_header *hdr)
 			/* Pipable WIM:  Use header at end instead, unless
 			 * actually reading from a pipe.  */
 			if (!in_fd->is_pipe) {
-				lseek(in_fd->fd, -WIM_HEADER_DISK_SIZE, SEEK_END);
+				ret = WIMLIB_ERR_READ;
+				if (-1 == lseek(in_fd->fd, -WIM_HEADER_DISK_SIZE, SEEK_END))
+					goto read_error;
 				ret = full_read(in_fd, &disk_hdr, sizeof(disk_hdr));
 				if (ret)
 					goto read_error;