Annotation of src/usr.bin/tip/cu.c, Revision 1.37
1.37 ! nicm 1: /* $OpenBSD: cu.c,v 1.36 2010/07/02 07:40:03 nicm Exp $ */
1.3 millert 2: /* $NetBSD: cu.c,v 1.5 1997/02/11 09:24:05 mrg Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.14 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
1.21 ray 33: #include <err.h>
34: #include <paths.h>
1.32 chl 35: #include <util.h>
1.21 ray 36:
1.1 deraadt 37: #include "tip.h"
38:
1.18 moritz 39: static void cuusage(void);
1.1 deraadt 40:
41: /*
42: * Botch the interface to look like cu's
43: */
1.4 deraadt 44: void
1.17 deraadt 45: cumain(int argc, char *argv[])
1.1 deraadt 46: {
1.29 nicm 47: int ch, i, parity, baudrate;
1.20 millert 48: const char *errstr;
1.1 deraadt 49: static char sbuf[12];
1.33 nicm 50: char *device;
1.1 deraadt 51:
1.6 millert 52: if (argc < 2)
53: cuusage();
1.33 nicm 54: vsetnum(BAUDRATE, DEFBR);
1.11 miod 55: parity = 0; /* none */
1.20 millert 56:
57: /*
58: * Convert obsolecent -### speed to modern -s### syntax which
59: * getopt() can handle.
60: */
61: for (i = 1; i < argc; i++) {
62: if (argv[i][0] == '-') {
63: switch (argv[i][1]) {
64: case '0': case '1': case '2': case '3': case '4':
65: case '5': case '6': case '7': case '8': case '9':
66: ch = snprintf(sbuf, sizeof(sbuf), "-s%s",
67: &argv[i][1]);
68: if (ch <= 0 || ch >= sizeof(sbuf)) {
69: errx(3, "invalid speed: %s",
70: &argv[i][1]);
71: }
72: argv[i] = sbuf;
73: break;
74: case '-':
75: /* if we get "--" stop processing args */
76: if (argv[i][2] == '\0')
77: goto getopt;
78: break;
79: }
80: }
81: }
82:
83: getopt:
1.26 nicm 84: while ((ch = getopt(argc, argv, "l:s:htoe")) != -1) {
1.17 deraadt 85: switch (ch) {
1.6 millert 86: case 'l':
1.33 nicm 87: if (vgetstr(DEVICE) != NULL) {
1.8 deraadt 88: fprintf(stderr,
1.23 martynas 89: "%s: cannot specify multiple -l options\n",
1.8 deraadt 90: __progname);
91: exit(3);
92: }
93: if (strchr(optarg, '/'))
1.33 nicm 94: vsetstr(DEVICE, optarg);
1.31 nicm 95: else {
1.33 nicm 96: if (asprintf(&device,
1.31 nicm 97: "%s%s", _PATH_DEV, optarg) == -1)
1.21 ray 98: err(3, "asprintf");
1.33 nicm 99: vsetstr(DEVICE, device);
1.31 nicm 100: }
1.1 deraadt 101: break;
102: case 's':
1.29 nicm 103: baudrate = (int)strtonum(optarg, 0, INT_MAX, &errstr);
1.20 millert 104: if (errstr)
105: errx(3, "speed is %s: %s", errstr, optarg);
1.33 nicm 106: vsetnum(BAUDRATE, baudrate);
1.6 millert 107: break;
108: case 'h':
1.33 nicm 109: vsetnum(LECHO, 1);
110: vsetnum(HALFDUPLEX, 1);
1.6 millert 111: break;
112: case 't':
1.27 nicm 113: /* Was for a hardwired dial-up connection. */
1.1 deraadt 114: break;
1.6 millert 115: case 'o':
1.11 miod 116: if (parity != 0)
117: parity = 0; /* -e -o */
118: else
119: parity = 1; /* odd */
1.6 millert 120: break;
121: case 'e':
1.11 miod 122: if (parity != 0)
123: parity = 0; /* -o -e */
124: else
125: parity = -1; /* even */
1.1 deraadt 126: break;
127: default:
1.10 pvalchev 128: cuusage();
1.1 deraadt 129: break;
130: }
131: }
1.6 millert 132: argc -= optind;
133: argv += optind;
134:
135: switch (argc) {
136: case 1:
1.30 nicm 137: /* Was phone number but now ignored. */
1.6 millert 138: case 0:
139: break;
140: default:
141: cuusage();
142: break;
143: }
144:
1.1 deraadt 145: signal(SIGINT, cleanup);
146: signal(SIGQUIT, cleanup);
147: signal(SIGHUP, cleanup);
148: signal(SIGTERM, cleanup);
1.16 otto 149: signal(SIGCHLD, SIG_DFL);
1.36 nicm 150:
1.1 deraadt 151: /*
152: * The "cu" host name is used to define the
153: * attributes of the generic dialer.
154: */
1.36 nicm 155: snprintf(sbuf, sizeof(sbuf), "cu%d", vgetnum(BAUDRATE));
1.35 nicm 156: FD = hunt(sbuf);
1.1 deraadt 157: setbuf(stdout, NULL);
1.36 nicm 158:
1.1 deraadt 159: loginit();
1.36 nicm 160:
1.11 miod 161: switch (parity) {
162: case -1:
163: setparity("even");
164: break;
165: case 1:
166: setparity("odd");
167: break;
168: default:
169: setparity("none");
170: break;
171: }
1.33 nicm 172: vsetnum(VERBOSE, 0);
173: if (ttysetup(vgetnum(BAUDRATE))) {
1.34 nicm 174: fprintf(stderr, "%s: unsupported speed %d\n",
1.33 nicm 175: __progname, vgetnum(BAUDRATE));
1.13 millert 176: (void)uu_unlock(uucplock);
177: exit(3);
178: }
1.26 nicm 179: con();
1.6 millert 180: }
181:
1.18 moritz 182: static void
1.17 deraadt 183: cuusage(void)
1.6 millert 184: {
1.30 nicm 185: fprintf(stderr, "usage: cu [-eho] [-l line] [-s speed | -speed]\n");
1.6 millert 186: exit(8);
1.1 deraadt 187: }
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