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authorJeremy Allison <jra@samba.org>2013-04-08 10:32:10 -0700
committerJeremy Allison <jra@samba.org>2013-04-19 14:11:27 -0700
commit1ed710c2ffc91d8b33b87e572a6075e0126b5826 (patch)
tree811f53a4378eed727602d9f3652a76749e4bc5c5 /source3
parent1b46db7b24a4f064706c2c7e712452135a3fed34 (diff)
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Ensure the RECVFILE path in vfs_write_data() operates on a blocking socket.
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Stefan (metze) Metzmacher <metze@samba.org>
Diffstat (limited to 'source3')
-rw-r--r--source3/smbd/vfs.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/source3/smbd/vfs.c b/source3/smbd/vfs.c
index 856e090ed3..dd74d79880 100644
--- a/source3/smbd/vfs.c
+++ b/source3/smbd/vfs.c
@@ -428,14 +428,25 @@ ssize_t vfs_write_data(struct smb_request *req,
ssize_t ret;
if (req && req->unread_bytes) {
+ int sockfd = req->sconn->sock;
+ int old_flags;
SMB_ASSERT(req->unread_bytes == N);
/* VFS_RECVFILE must drain the socket
* before returning. */
req->unread_bytes = 0;
- return SMB_VFS_RECVFILE(req->sconn->sock,
+ /* Ensure the socket is blocking. */
+ old_flags = fcntl(sockfd, F_GETFL, 0);
+ if (set_blocking(sockfd, true) == -1) {
+ return (ssize_t)-1;
+ }
+ ret = SMB_VFS_RECVFILE(sockfd,
fsp,
(off_t)-1,
N);
+ if (fcntl(sockfd, F_SETFL, old_flags) == -1) {
+ return (ssize_t)-1;
+ }
+ return ret;
}
while (total < N) {