Annotation of src/usr.bin/tip/cu.c, Revision 1.18
1.18 ! moritz 1: /* $OpenBSD: cu.c,v 1.17 2006/03/16 19:32:46 deraadt 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:
33: #ifndef lint
34: #if 0
35: static char sccsid[] = "@(#)cu.c 8.1 (Berkeley) 6/6/93";
36: #endif
1.18 ! moritz 37: static const char rcsid[] = "$OpenBSD: cu.c,v 1.17 2006/03/16 19:32:46 deraadt Exp $";
1.1 deraadt 38: #endif /* not lint */
39:
40: #include "tip.h"
41:
1.18 ! moritz 42: static void cuusage(void);
1.1 deraadt 43:
44: /*
45: * Botch the interface to look like cu's
46: */
1.4 deraadt 47: void
1.17 deraadt 48: cumain(int argc, char *argv[])
1.1 deraadt 49: {
1.11 miod 50: int ch, i, parity;
1.6 millert 51: long l;
52: char *cp;
1.1 deraadt 53: static char sbuf[12];
54:
1.6 millert 55: if (argc < 2)
56: cuusage();
1.1 deraadt 57: CU = DV = NOSTR;
58: BR = DEFBR;
1.11 miod 59: parity = 0; /* none */
1.6 millert 60: while ((ch = getopt(argc, argv, "a:l:s:htoe0123456789")) != -1) {
1.17 deraadt 61: switch (ch) {
1.1 deraadt 62: case 'a':
1.6 millert 63: CU = optarg;
64: break;
65: case 'l':
1.8 deraadt 66: if (DV != NULL) {
67: fprintf(stderr,
68: "%s: cannot specificy multiple -l options\n",
69: __progname);
70: exit(3);
71: }
72: if (strchr(optarg, '/'))
73: DV = optarg;
74: else
75: asprintf(&DV, "/dev/%s", optarg);
1.1 deraadt 76: break;
77: case 's':
1.6 millert 78: l = strtol(optarg, &cp, 10);
1.13 millert 79: if (*cp != '\0' || l < 0 || l >= INT_MAX) {
1.6 millert 80: fprintf(stderr, "%s: unsupported speed %s\n",
81: __progname, optarg);
1.1 deraadt 82: exit(3);
83: }
1.6 millert 84: BR = (int)l;
85: break;
86: case 'h':
1.9 millert 87: setboolean(value(LECHO), TRUE);
1.6 millert 88: HD = TRUE;
89: break;
90: case 't':
91: HW = 1, DU = -1;
1.1 deraadt 92: break;
1.6 millert 93: case 'o':
1.11 miod 94: if (parity != 0)
95: parity = 0; /* -e -o */
96: else
97: parity = 1; /* odd */
1.6 millert 98: break;
99: case 'e':
1.11 miod 100: if (parity != 0)
101: parity = 0; /* -o -e */
102: else
103: parity = -1; /* even */
1.1 deraadt 104: break;
105: case '0': case '1': case '2': case '3': case '4':
106: case '5': case '6': case '7': case '8': case '9':
107: if (CU)
1.6 millert 108: CU[strlen(CU)-1] = ch;
1.1 deraadt 109: if (DV)
1.6 millert 110: DV[strlen(DV)-1] = ch;
1.1 deraadt 111: break;
112: default:
1.10 pvalchev 113: cuusage();
1.1 deraadt 114: break;
115: }
116: }
1.6 millert 117: argc -= optind;
118: argv += optind;
119:
120: switch (argc) {
121: case 1:
122: PN = argv[0];
123: break;
124: case 0:
125: break;
126: default:
127: cuusage();
128: break;
129: }
130:
1.1 deraadt 131: signal(SIGINT, cleanup);
132: signal(SIGQUIT, cleanup);
133: signal(SIGHUP, cleanup);
134: signal(SIGTERM, cleanup);
1.16 otto 135: signal(SIGCHLD, SIG_DFL);
1.1 deraadt 136:
137: /*
138: * The "cu" host name is used to define the
139: * attributes of the generic dialer.
140: */
1.4 deraadt 141: (void)snprintf(sbuf, sizeof(sbuf), "cu%ld", BR);
1.1 deraadt 142: if ((i = hunt(sbuf)) == 0) {
143: printf("all ports busy\n");
144: exit(3);
145: }
146: if (i == -1) {
147: printf("link down\n");
148: (void)uu_unlock(uucplock);
149: exit(3);
150: }
151: setbuf(stdout, NULL);
152: loginit();
153: user_uid();
154: vinit();
1.11 miod 155: switch (parity) {
156: case -1:
157: setparity("even");
158: break;
159: case 1:
160: setparity("odd");
161: break;
162: default:
163: setparity("none");
164: break;
165: }
1.9 millert 166: setboolean(value(VERBOSE), FALSE);
1.13 millert 167: if (HW && ttysetup(BR)) {
168: fprintf(stderr, "%s: unsupported speed %ld\n",
169: __progname, BR);
170: daemon_uid();
171: (void)uu_unlock(uucplock);
172: exit(3);
173: }
1.17 deraadt 174: if (con()) {
1.1 deraadt 175: printf("Connect failed\n");
176: daemon_uid();
177: (void)uu_unlock(uucplock);
178: exit(1);
179: }
1.13 millert 180: if (!HW && ttysetup(BR)) {
181: fprintf(stderr, "%s: unsupported speed %ld\n",
182: __progname, BR);
183: daemon_uid();
184: (void)uu_unlock(uucplock);
185: exit(3);
186: }
1.6 millert 187: }
188:
1.18 ! moritz 189: static void
1.17 deraadt 190: cuusage(void)
1.6 millert 191: {
192: fprintf(stderr, "usage: cu [-ehot] [-a acu] [-l line] [-s speed] [-#] "
193: "[phone-number]\n");
194: exit(8);
1.1 deraadt 195: }
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