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att
GitHub Repository: att/ast
 Path: blob/master/src/cmd/cs/6263.c
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1990-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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 * Glenn Fowler

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 * AT&T Research

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 *

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 * simple name service on port 6263 (use the phone keypad luke)

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 * client sends cs connect stream path

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 * server sends back /dev/tcp/.../... path

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 */

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static const char id[] = "@(#)$Id: cs.6263 (AT&T Research) 2000-05-11 $\0\n";

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#include <css.h>

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#include <error.h>

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static int

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actionf(register Css_t* css, register Cssfd_t* fp, Cssdisc_t* disc)

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{

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	register ssize_t	n;

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	register char*		s;

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	register char*		t;

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	int			ud;

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	static char		path[PATH_MAX];

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	if (fp->status == CS_POLL_READ)

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	{

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		if ((n = csread(css->state, fp->fd, path, sizeof(path) - 1, CS_LINE)) <= 1)

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			return -1;

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		path[n - 1] = 0;

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		if ((ud = csopen(css->state, path, CS_OPEN_READ)) >= 0)

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		{

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			s = cspath(css->state, ud, 0);

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			if (t = strrchr(s, '.'))

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				*t = 0;

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			close(ud);

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		}

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		else

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			s = 0;

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		if (s)

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			n = strlen(s);

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		else

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		{

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			s = path;

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			n = 0;

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		}

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		s[n++] = '\n';

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		cswrite(css->state, fp->fd, s, n);

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	}

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	return -1;

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}

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static int

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exceptf(Css_t* css, unsigned long op, unsigned long arg, Cssdisc_t* disc)

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{

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	switch (op)

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	{

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	case CSS_INTERRUPT:

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		error(ERROR_SYSTEM|3, "%s: interrupt exit", fmtsignal(arg));

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		return 0;

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	case CSS_DORMANT:

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		error(2, "dormant exit");

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		exit(0);

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	}

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	error(ERROR_SYSTEM|3, "poll error op=0x%08x arg=0x%08x", op, arg);

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	return -1;

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}

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int

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main(int argc, char** argv)

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{

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	Css_t*		css;

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	Cssdisc_t	disc;

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	NoP(argc);

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	memset(&disc, 0, sizeof(disc));

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	disc.version = CSS_VERSION;

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	disc.flags = CSS_DAEMON|CSS_ERROR|CSS_DORMANT|CSS_INTERRUPT;

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	disc.timeout = 20 * 60 * 1000L;

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	disc.actionf = actionf;

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	disc.errorf = errorf;

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	disc.exceptf = exceptf;

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	if (!(css = cssopen(argv[1], &disc)))

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		exit(1);

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	error_info.id = css->id;

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	csspoll(CS_NEVER, 0);

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	exit(1);

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}

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