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-rw-r--r--source3/smbd/pipes.c89
1 files changed, 51 insertions, 38 deletions
diff --git a/source3/smbd/pipes.c b/source3/smbd/pipes.c
index 6c7faa4c05..951c192e39 100644
--- a/source3/smbd/pipes.c
+++ b/source3/smbd/pipes.c
@@ -4,6 +4,7 @@
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Luke Kenneth Casson Leighton 1996-1998
Copyright (C) Paul Ashton 1997-1998.
+ Copyright (C) Jeremy Allison 2005.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -33,11 +34,11 @@
extern struct pipe_id_info pipe_names[];
/****************************************************************************
- reply to an open and X on a named pipe
-
- This code is basically stolen from reply_open_and_X with some
- wrinkles to handle pipes.
+ Reply to an open and X on a named pipe.
+ This code is basically stolen from reply_open_and_X with some
+ wrinkles to handle pipes.
****************************************************************************/
+
int reply_open_pipe_and_X(connection_struct *conn,
char *inbuf,char *outbuf,int length,int bufsize)
{
@@ -45,7 +46,6 @@ int reply_open_pipe_and_X(connection_struct *conn,
pstring pipe_name;
uint16 vuid = SVAL(inbuf, smb_uid);
smb_np_struct *p;
- int smb_ofun = SVAL(inbuf,smb_vwv8);
int size=0,fmode=0,mtime=0,rmode=0;
int i;
@@ -55,23 +55,26 @@ int reply_open_pipe_and_X(connection_struct *conn,
/* If the name doesn't start \PIPE\ then this is directed */
/* at a mailslot or something we really, really don't understand, */
/* not just something we really don't understand. */
- if ( strncmp(pipe_name,PIPE,PIPELEN) != 0 )
+ if ( strncmp(pipe_name,PIPE,PIPELEN) != 0 ) {
return(ERROR_DOS(ERRSRV,ERRaccess));
+ }
DEBUG(4,("Opening pipe %s.\n", pipe_name));
/* See if it is one we want to handle. */
- for( i = 0; pipe_names[i].client_pipe ; i++ )
- if( strequal(pipe_name,pipe_names[i].client_pipe) )
+ for( i = 0; pipe_names[i].client_pipe ; i++ ) {
+ if( strequal(pipe_name,pipe_names[i].client_pipe)) {
break;
+ }
+ }
- if (pipe_names[i].client_pipe == NULL)
+ if (pipe_names[i].client_pipe == NULL) {
return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
+ }
/* Strip \PIPE\ off the name. */
pstrcpy(fname, pipe_name + PIPELEN);
-
#if 0
/*
* Hack for NT printers... JRA.
@@ -83,10 +86,11 @@ int reply_open_pipe_and_X(connection_struct *conn,
/* Known pipes arrive with DIR attribs. Remove it so a regular file */
/* can be opened and add it in after the open. */
DEBUG(3,("Known pipe %s opening.\n",fname));
- smb_ofun |= FILE_CREATE_IF_NOT_EXIST;
p = open_rpc_pipe_p(fname, conn, vuid);
- if (!p) return(ERROR_DOS(ERRSRV,ERRnofids));
+ if (!p) {
+ return(ERROR_DOS(ERRSRV,ERRnofids));
+ }
/* Prepare the reply */
set_message(outbuf,15,0,True);
@@ -111,8 +115,9 @@ int reply_open_pipe_and_X(connection_struct *conn,
}
/****************************************************************************
- reply to a write on a pipe
+ Reply to a write on a pipe.
****************************************************************************/
+
int reply_pipe_write(char *inbuf,char *outbuf,int length,int dum_bufsize)
{
smb_np_struct *p = get_rpc_pipe_p(inbuf,smb_vwv0);
@@ -121,25 +126,27 @@ int reply_pipe_write(char *inbuf,char *outbuf,int length,int dum_bufsize)
int outsize;
char *data;
- if (!p)
+ if (!p) {
return(ERROR_DOS(ERRDOS,ERRbadfid));
+ }
data = smb_buf(inbuf) + 3;
- if (numtowrite == 0)
+ if (numtowrite == 0) {
nwritten = 0;
- else
+ } else {
nwritten = write_to_pipe(p, data, numtowrite);
+ }
- if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0))
+ if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0)) {
return (UNIXERROR(ERRDOS,ERRnoaccess));
+ }
outsize = set_message(outbuf,1,0,True);
SSVAL(outbuf,smb_vwv0,nwritten);
- DEBUG(3,("write-IPC pnum=%04x nwritten=%d\n",
- p->pnum, nwritten));
+ DEBUG(3,("write-IPC pnum=%04x nwritten=%d\n", p->pnum, nwritten));
return(outsize);
}
@@ -158,24 +165,25 @@ int reply_pipe_write_and_X(char *inbuf,char *outbuf,int length,int bufsize)
int nwritten = -1;
int smb_doff = SVAL(inbuf, smb_vwv11);
BOOL pipe_start_message_raw = ((SVAL(inbuf, smb_vwv7) & (PIPE_START_MESSAGE|PIPE_RAW_MODE)) ==
- (PIPE_START_MESSAGE|PIPE_RAW_MODE));
+ (PIPE_START_MESSAGE|PIPE_RAW_MODE));
char *data;
- if (!p)
+ if (!p) {
return(ERROR_DOS(ERRDOS,ERRbadfid));
+ }
data = smb_base(inbuf) + smb_doff;
- if (numtowrite == 0)
+ if (numtowrite == 0) {
nwritten = 0;
- else {
+ } else {
if(pipe_start_message_raw) {
/*
* For the start of a message in named pipe byte mode,
* the first two bytes are a length-of-pdu field. Ignore
- * them (we don't trust the client. JRA.
+ * them (we don't trust the client). JRA.
*/
- if(numtowrite < 2) {
+ if(numtowrite < 2) {
DEBUG(0,("reply_pipe_write_and_X: start of message set and not enough data sent.(%u)\n",
(unsigned int)numtowrite ));
return (UNIXERROR(ERRDOS,ERRnoaccess));
@@ -183,30 +191,30 @@ int reply_pipe_write_and_X(char *inbuf,char *outbuf,int length,int bufsize)
data += 2;
numtowrite -= 2;
- }
+ }
nwritten = write_to_pipe(p, data, numtowrite);
}
- if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0))
+ if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0)) {
return (UNIXERROR(ERRDOS,ERRnoaccess));
+ }
set_message(outbuf,6,0,True);
nwritten = (pipe_start_message_raw ? nwritten + 2 : nwritten);
SSVAL(outbuf,smb_vwv2,nwritten);
- DEBUG(3,("writeX-IPC pnum=%04x nwritten=%d\n",
- p->pnum, nwritten));
+ DEBUG(3,("writeX-IPC pnum=%04x nwritten=%d\n", p->pnum, nwritten));
return chain_reply(inbuf,outbuf,length,bufsize);
}
/****************************************************************************
- reply to a read and X
-
- This code is basically stolen from reply_read_and_X with some
- wrinkles to handle pipes.
+ Reply to a read and X.
+ This code is basically stolen from reply_read_and_X with some
+ wrinkles to handle pipes.
****************************************************************************/
+
int reply_pipe_read_and_X(char *inbuf,char *outbuf,int length,int bufsize)
{
smb_np_struct *p = get_rpc_pipe_p(inbuf,smb_vwv2);
@@ -223,16 +231,18 @@ int reply_pipe_read_and_X(char *inbuf,char *outbuf,int length,int bufsize)
uint32 smb_offs = IVAL(inbuf,smb_vwv3);
#endif
- if (!p)
+ if (!p) {
return(ERROR_DOS(ERRDOS,ERRbadfid));
+ }
set_message(outbuf,12,0,True);
data = smb_buf(outbuf);
nread = read_from_pipe(p, data, smb_maxcnt, &unused);
- if (nread < 0)
+ if (nread < 0) {
return(UNIXERROR(ERRDOS,ERRnoaccess));
+ }
SSVAL(outbuf,smb_vwv5,nread);
SSVAL(outbuf,smb_vwv6,smb_offset(data,outbuf));
@@ -247,20 +257,23 @@ int reply_pipe_read_and_X(char *inbuf,char *outbuf,int length,int bufsize)
}
/****************************************************************************
- reply to a close
+ Reply to a close.
****************************************************************************/
+
int reply_pipe_close(connection_struct *conn, char *inbuf,char *outbuf)
{
smb_np_struct *p = get_rpc_pipe_p(inbuf,smb_vwv0);
int outsize = set_message(outbuf,0,0,True);
- if (!p)
+ if (!p) {
return(ERROR_DOS(ERRDOS,ERRbadfid));
+ }
DEBUG(5,("reply_pipe_close: pnum:%x\n", p->pnum));
- if (!close_rpc_pipe_hnd(p))
+ if (!close_rpc_pipe_hnd(p)) {
return ERROR_DOS(ERRDOS,ERRbadfid);
+ }
return(outsize);
}
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