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authorVolker Lendecke <vlendec@samba.org>2007-08-12 11:40:27 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 12:29:31 -0500
commita0ad547ccbf5316862bd8f7b8ae9e76c4386b62c (patch)
treee42097210d9b1ea3359deee4324db4524f6ea394 /source3
parent6dcf0c64cfcf905e55e46b423d8e153918da862c (diff)
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r24348: Do not use inbuf/outbuf in the sendfile path of read_and_X
(This used to be commit 595ea708ee8c9b6f86648dfdb5ff5a3feafe1f07)
Diffstat (limited to 'source3')
-rw-r--r--source3/smbd/reply.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/source3/smbd/reply.c b/source3/smbd/reply.c
index 9119ec1e0b..1698a0e7b1 100644
--- a/source3/smbd/reply.c
+++ b/source3/smbd/reply.c
@@ -2731,7 +2731,10 @@ Returning short read of maximum allowed for compatibility with Windows 2000.\n",
static int setup_readX_header(char *inbuf, char *outbuf, size_t smb_maxcnt)
{
int outsize;
- char *data = smb_buf(outbuf);
+ char *data;
+
+ outsize = set_message(inbuf, outbuf,12,smb_maxcnt,False);
+ data = smb_buf(outbuf);
SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
SSVAL(outbuf,smb_vwv5,smb_maxcnt);
@@ -2739,7 +2742,6 @@ static int setup_readX_header(char *inbuf, char *outbuf, size_t smb_maxcnt)
SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
SSVAL(smb_buf(outbuf),-2,smb_maxcnt);
SCVAL(outbuf,smb_vwv0,0xFF);
- outsize = set_message(inbuf, outbuf,12,smb_maxcnt,False);
/* Reset the outgoing length, set_message truncates at 0x1FFFF. */
_smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
return outsize;
@@ -2759,15 +2761,6 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
char *inbuf, *outbuf;
int length, len_outbuf;
- if (!reply_prep_legacy(req, &inbuf, &outbuf, &length, &len_outbuf)) {
- reply_nterror(req, NT_STATUS_NO_MEMORY);
- return;
- }
-
- set_message(inbuf, outbuf, 12, 0, True);
-
- data = smb_buf(outbuf);
-
if(SMB_VFS_FSTAT(fsp,fsp->fh->fd, &sbuf) == -1) {
reply_unixerror(req, ERRDOS, ERRnoaccess);
return;
@@ -2790,8 +2783,9 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
* on a train in Germany :-). JRA.
*/
- if ((chain_size == 0) && (CVAL(inbuf,smb_vwv0) == 0xFF) &&
+ if ((chain_size == 0) && (CVAL(req->inbuf,smb_vwv0) == 0xFF) &&
lp_use_sendfile(SNUM(conn)) && (fsp->wcp == NULL) ) {
+ char headerbuf[smb_size + 12 * 2];
DATA_BLOB header;
/*
@@ -2800,11 +2794,10 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
* correct amount of data).
*/
- setup_readX_header(inbuf,outbuf,smb_maxcnt);
- set_message(inbuf,outbuf,12,smb_maxcnt,False);
- header.data = (uint8 *)outbuf;
- header.length = data - outbuf;
- header.free = NULL;
+ header = data_blob_const(headerbuf, sizeof(headerbuf));
+
+ construct_reply_common((char *)req->inbuf, headerbuf);
+ setup_readX_header((char *)req->inbuf, headerbuf, smb_maxcnt);
if ((nread = SMB_VFS_SENDFILE( smbd_server_fd(), fsp, fsp->fh->fd, &header, startpos, smb_maxcnt)) == -1) {
/* Returning ENOSYS means no data at all was sent. Do this as a normal read. */
@@ -2852,6 +2845,15 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
normal_read:
+ if (!reply_prep_legacy(req, &inbuf, &outbuf, &length, &len_outbuf)) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+
+ set_message(inbuf, outbuf, 12, 0, True);
+
+ data = smb_buf(outbuf);
+
if ((smb_maxcnt & 0xFF0000) > 0x10000) {
int sendlen = setup_readX_header(inbuf,outbuf,smb_maxcnt) - smb_maxcnt;
/* Send out the header. */