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assuan-listen.c
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assuan-listen.c
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/* assuan-listen.c - Wait for a connection (server)
* Copyright (C) 2001, 2002 Free Software Foundation, Inc.
*
* This file is part of Assuan.
*
* Assuan is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Assuan is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include
<config.h>
#include
<stdlib.h>
#include
<stdio.h>
#include
<string.h>
#include
<unistd.h>
#include
"assuan-defs.h"
AssuanError
assuan_set_hello_line
(
ASSUAN_CONTEXT
ctx
,
const
char
*
line
)
{
if
(
!
ctx
)
return
ASSUAN_Invalid_Value
;
if
(
!
line
)
{
xfree
(
ctx
->
hello_line
);
ctx
->
hello_line
=
NULL
;
}
else
{
char
*
buf
=
xtrymalloc
(
3
+
strlen
(
line
)
+
1
);
if
(
!
buf
)
return
ASSUAN_Out_Of_Core
;
strcpy
(
buf
,
"OK "
);
strcpy
(
buf
+
3
,
line
);
xfree
(
ctx
->
hello_line
);
ctx
->
hello_line
=
buf
;
}
return
0
;
}
/**
* assuan_accept:
* @ctx: context
*
* Cancel any existing connection and wait for a connection from a
* client. The initial handshake is performed which may include an
* initial authentication or encryption negotiation.
*
* Return value: 0 on success or an error if the connection could for
* some reason not be established.
**/
AssuanError
assuan_accept
(
ASSUAN_CONTEXT
ctx
)
{
int
rc
;
if
(
!
ctx
)
return
ASSUAN_Invalid_Value
;
if
(
ctx
->
pipe_mode
>
1
)
return
-1
;
/* second invocation for pipemode -> terminate */
ctx
->
finish_handler
(
ctx
);
rc
=
ctx
->
accept_handler
(
ctx
);
if
(
rc
)
return
rc
;
/* send the hello */
rc
=
assuan_write_line
(
ctx
,
ctx
->
hello_line
?
ctx
->
hello_line
:
"OK Your orders please"
);
if
(
rc
)
return
rc
;
if
(
ctx
->
pipe_mode
)
ctx
->
pipe_mode
=
2
;
return
0
;
}
int
assuan_get_input_fd
(
ASSUAN_CONTEXT
ctx
)
{
return
ctx
?
ctx
->
input_fd
:
-1
;
}
int
assuan_get_output_fd
(
ASSUAN_CONTEXT
ctx
)
{
return
ctx
?
ctx
->
output_fd
:
-1
;
}
/* Close the fd descriptor set by the command INPUT FD=n. We handle
this fd inside assuan so that we can do some initial checks */
AssuanError
assuan_close_input_fd
(
ASSUAN_CONTEXT
ctx
)
{
if
(
!
ctx
||
ctx
->
input_fd
==
-1
)
return
ASSUAN_Invalid_Value
;
close
(
ctx
->
input_fd
);
ctx
->
input_fd
=
-1
;
return
0
;
}
/* Close the fd descriptor set by the command OUTPUT FD=n. We handle
this fd inside assuan so that we can do some initial checks */
AssuanError
assuan_close_output_fd
(
ASSUAN_CONTEXT
ctx
)
{
if
(
!
ctx
||
ctx
->
output_fd
==
-1
)
return
ASSUAN_Invalid_Value
;
close
(
ctx
->
output_fd
);
ctx
->
output_fd
=
-1
;
return
0
;
}
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