phoned/lib/tcl/sockstuff.c

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2005-06-26 00:47:20 -04:00
/*
* Copyright (c) 2005, Dan Ponte
*
* sockstuff.c - Implement SOCK_STREAM AF_LOCAL sockets for Tcl
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $Amigan: phoned/lib/tcl/sockstuff.c,v 1.1 2005/06/26 04:47:20 dcp1990 Exp $ */
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <signal.h>
#include <sys/wait.h>
#include <sys/select.h>
/* network stuff */
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/un.h>
#include <errno.h>
#include <tcl.h>
#define CMD_ARGS (ClientData clientData, Tcl_Interp *interp, int argc, Tcl_Obj *CONST objv[])
int UdomConnectSocket (cdata, interp, argc, argv)
ClientData cdata;
Tcl_Interp *interp;
int argc;
char **argv;
{
int s;
struct sockaddr_un them;
if(argc < 2) {
return TCL_ERROR;
}
s = socket(AF_LOCAL, SOCK_STREAM, 0);
strcpy(them.sun_path, sockfile);
them.sun_family = AF_LOCAL;
if(connect(s, (struct sockaddr *)&them, 1 + strlen(them.sun_path) + sizeof(them.sun_family)) == -1) {
return TCL_ERROR;
}
}
int UdomClose(idata, interp)
ClientData idata;
Tcl_Interp *interp;
{
close(socket);
}
int UdomInput(idata, buf, sizebuf, errorptr)
ClientData idata;
char *buf;
int sizebuf;
int *errorptr;
{
int ec;
ec = read((int)idata, buf, sizebuf);
if(ec == -1) {
*errorptr = errno;
return -1;
} else {
return ec;
}
}
int UdomOutput(idata, buf, towrite, ecptr)
ClientData idata;
CONST char *buf;
int towrite;
int *ecptr;
{
int rc;
rc = write((int)idata, buf, towrite);
if(rc == -1) {
*ecptr = errno;
return -1;
} else {
return rc;
}
}
/* write watcher */
Tcl_ChannelType ourchan = {
"udomain",
TCL_CHANNEL_VERSION_3,
&UdomClose,
&UdomInput,
&UdomOutput,
NULL, /* seek */
NULL, /* set and getoption, might do later */
NULL,
&UdomWatch,
&UdomGetHandle,
NULL, /* close2proc */
NULL, /* block mode */
&UdomFlush,
&UdomHandler,
&UdomWideSeek /* return EINVAL */
};