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/* $OpenBSD: cu.c,v 1.37 2010/07/03 03:33:12 nicm Exp $ */
/* $NetBSD: cu.c,v 1.5 1997/02/11 09:24:05 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. 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 REGENTS 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 REGENTS 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.
*/
#include <err.h>
#include <paths.h>
#include <util.h>
#include "tip.h"
static void cuusage(void);
/*
* Botch the interface to look like cu's
*/
void
cumain(int argc, char *argv[])
{
int ch, i, parity, baudrate;
const char *errstr;
static char sbuf[12];
char *device;
if (argc < 2)
cuusage();
vsetnum(BAUDRATE, DEFBR);
parity = 0; /* none */
/*
* Convert obsolecent -### speed to modern -s### syntax which
* getopt() can handle.
*/
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
ch = snprintf(sbuf, sizeof(sbuf), "-s%s",
&argv[i][1]);
if (ch <= 0 || ch >= sizeof(sbuf)) {
errx(3, "invalid speed: %s",
&argv[i][1]);
}
argv[i] = sbuf;
break;
case '-':
/* if we get "--" stop processing args */
if (argv[i][2] == '\0')
goto getopt;
break;
}
}
}
getopt:
while ((ch = getopt(argc, argv, "l:s:htoe")) != -1) {
switch (ch) {
case 'l':
if (vgetstr(DEVICE) != NULL) {
fprintf(stderr,
"%s: cannot specify multiple -l options\n",
__progname);
exit(3);
}
if (strchr(optarg, '/'))
vsetstr(DEVICE, optarg);
else {
if (asprintf(&device,
"%s%s", _PATH_DEV, optarg) == -1)
err(3, "asprintf");
vsetstr(DEVICE, device);
}
break;
case 's':
baudrate = (int)strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr)
errx(3, "speed is %s: %s", errstr, optarg);
vsetnum(BAUDRATE, baudrate);
break;
case 'h':
vsetnum(LECHO, 1);
vsetnum(HALFDUPLEX, 1);
break;
case 't':
/* Was for a hardwired dial-up connection. */
break;
case 'o':
if (parity != 0)
parity = 0; /* -e -o */
else
parity = 1; /* odd */
break;
case 'e':
if (parity != 0)
parity = 0; /* -o -e */
else
parity = -1; /* even */
break;
default:
cuusage();
break;
}
}
argc -= optind;
argv += optind;
switch (argc) {
case 1:
/* Was phone number but now ignored. */
case 0:
break;
default:
cuusage();
break;
}
signal(SIGINT, cleanup);
signal(SIGQUIT, cleanup);
signal(SIGHUP, cleanup);
signal(SIGTERM, cleanup);
signal(SIGCHLD, SIG_DFL);
/*
* The "cu" host name is used to define the
* attributes of the generic dialer.
*/
snprintf(sbuf, sizeof(sbuf), "cu%d", vgetnum(BAUDRATE));
FD = hunt(sbuf);
setbuf(stdout, NULL);
loginit();
switch (parity) {
case -1:
setparity("even");
break;
case 1:
setparity("odd");
break;
default:
setparity("none");
break;
}
vsetnum(VERBOSE, 0);
if (ttysetup(vgetnum(BAUDRATE))) {
fprintf(stderr, "%s: unsupported speed %d\n",
__progname, vgetnum(BAUDRATE));
(void)uu_unlock(uucplock);
exit(3);
}
con();
}
static void
cuusage(void)
{
fprintf(stderr, "usage: cu [-eho] [-l line] [-s speed | -speed]\n");
exit(8);
}
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