Annotation of src/usr.bin/mail/main.c, Revision 1.12
1.12 ! millert 1: /* $OpenBSD: main.c,v 1.11 1998/09/27 21:16:42 millert Exp $ */
1.5 millert 2: /* $NetBSD: main.c,v 1.7 1997/05/13 06:15:57 mikel Exp $ */
1.2 deraadt 3:
1.1 deraadt 4: /*
5: * Copyright (c) 1980, 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.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: static char copyright[] =
39: "@(#) Copyright (c) 1980, 1993\n\
40: The Regents of the University of California. All rights reserved.\n";
41: #endif /* not lint */
42:
43: #ifndef lint
1.2 deraadt 44: #if 0
1.5 millert 45: static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95";
1.2 deraadt 46: #else
1.12 ! millert 47: static char rcsid[] = "$OpenBSD: main.c,v 1.11 1998/09/27 21:16:42 millert Exp $";
1.2 deraadt 48: #endif
1.1 deraadt 49: #endif /* not lint */
50:
51: #include "rcv.h"
52: #include <fcntl.h>
1.2 deraadt 53: #include <sys/ioctl.h>
1.1 deraadt 54: #include "extern.h"
55:
1.10 millert 56: int main __P((int, char **));
57:
1.1 deraadt 58: /*
59: * Mail -- a mail program
60: *
61: * Startup -- interface with user.
62: */
63:
1.7 millert 64: sigjmp_buf hdrjmp;
1.1 deraadt 65:
66: int
67: main(argc, argv)
68: int argc;
69: char *argv[];
70: {
1.10 millert 71: int i;
1.1 deraadt 72: struct name *to, *cc, *bcc, *smopts;
73: char *subject;
74: char *ef;
75: char nosrc = 0;
76: sig_t prevint;
1.5 millert 77: char *rc;
1.1 deraadt 78:
79: /*
80: * Set up a reasonable environment.
81: * Figure out whether we are being run interactively,
82: * start the SIGCHLD catcher, and so forth.
83: */
1.6 millert 84: (void)signal(SIGCHLD, sigchild);
1.1 deraadt 85: if (isatty(0))
86: assign("interactive", "");
87: image = -1;
88: /*
89: * Now, determine how we are being used.
90: * We successively pick off - flags.
91: * If there is anything left, it is the base of the list
92: * of users to mail to. Argp will be set to point to the
93: * first of these users.
94: */
1.7 millert 95: ef = NULL;
1.1 deraadt 96: to = NIL;
97: cc = NIL;
98: bcc = NIL;
99: smopts = NIL;
1.7 millert 100: subject = NULL;
1.4 millert 101: while ((i = getopt(argc, argv, "INT:b:c:dfins:u:v")) != -1) {
1.1 deraadt 102: switch (i) {
103: case 'T':
104: /*
105: * Next argument is temp file to write which
106: * articles have been read/deleted for netnews.
107: */
108: Tflag = optarg;
1.5 millert 109: if ((i = creat(Tflag, 0600)) < 0)
1.12 ! millert 110: err(1, "%s", Tflag);
1.5 millert 111: (void)close(i);
1.1 deraadt 112: break;
113: case 'u':
114: /*
115: * Next argument is person to pretend to be.
116: */
1.3 deraadt 117: unsetenv("MAIL");
1.1 deraadt 118: myname = optarg;
1.11 millert 119: uflag = 1;
1.1 deraadt 120: break;
121: case 'i':
122: /*
123: * User wants to ignore interrupts.
124: * Set the variable "ignore"
125: */
126: assign("ignore", "");
127: break;
128: case 'd':
129: debug++;
130: break;
131: case 's':
132: /*
133: * Give a subject field for sending from
134: * non terminal
135: */
136: subject = optarg;
137: break;
138: case 'f':
139: /*
140: * User is specifying file to "edit" with Mail,
141: * as opposed to reading system mailbox.
142: * If no argument is given after -f, we read his
143: * mbox file.
144: *
145: * getopt() can't handle optional arguments, so here
146: * is an ugly hack to get around it.
147: */
148: if ((argv[optind]) && (argv[optind][0] != '-'))
149: ef = argv[optind++];
150: else
151: ef = "&";
152: break;
153: case 'n':
154: /*
155: * User doesn't want to source /usr/lib/Mail.rc
156: */
157: nosrc++;
158: break;
159: case 'N':
160: /*
161: * Avoid initial header printing.
162: */
163: assign("noheader", "");
164: break;
165: case 'v':
166: /*
167: * Send mailer verbose flag
168: */
169: assign("verbose", "");
170: break;
171: case 'I':
172: /*
173: * We're interactive
174: */
175: assign("interactive", "");
176: break;
177: case 'c':
178: /*
179: * Get Carbon Copy Recipient list
180: */
181: cc = cat(cc, nalloc(optarg, GCC));
182: break;
183: case 'b':
184: /*
185: * Get Blind Carbon Copy Recipient list
186: */
187: bcc = cat(bcc, nalloc(optarg, GBCC));
188: break;
189: case '?':
1.5 millert 190: fprintf(stderr, "\
191: Usage: %s [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\
1.1 deraadt 192: [- sendmail-options ...]\n\
1.5 millert 193: %s [-iInNv] -f [name]\n\
194: %s [-iInNv] [-u user]\n", __progname, __progname, __progname);
1.1 deraadt 195: exit(1);
196: }
197: }
198: for (i = optind; (argv[i]) && (*argv[i] != '-'); i++)
199: to = cat(to, nalloc(argv[i], GTO));
200: for (; argv[i]; i++)
201: smopts = cat(smopts, nalloc(argv[i], 0));
202: /*
203: * Check for inconsistent arguments.
204: */
1.7 millert 205: if (to == NIL && (subject != NULL || cc != NIL || bcc != NIL))
1.5 millert 206: errx(1, "You must specify direct recipients with -s, -c, or -b");
1.7 millert 207: if (ef != NULL && to != NIL)
1.5 millert 208: errx(1, "Cannot give -f and people to send to");
1.1 deraadt 209: tinit();
210: setscreensize();
211: input = stdin;
212: rcvmode = !to;
213: spreserve();
214: if (!nosrc)
215: load(_PATH_MASTER_RC);
216: /*
217: * Expand returns a savestr, but load only uses the file name
218: * for fopen, so it's safe to do this.
219: */
1.5 millert 220: if ((rc = getenv("MAILRC")) == 0)
221: rc = "~/.mailrc";
222: load(expand(rc));
1.1 deraadt 223: if (!rcvmode) {
224: mail(to, cc, bcc, smopts, subject);
225: /*
226: * why wait?
227: */
228: exit(senderr);
229: }
230: /*
231: * Ok, we are reading mail.
232: * Decide whether we are editing a mailbox or reading
233: * the system mailbox, and open up the right stuff.
234: */
1.7 millert 235: if (ef == NULL)
1.1 deraadt 236: ef = "%";
237: if (setfile(ef) < 0)
238: exit(1); /* error already reported */
1.7 millert 239: if (sigsetjmp(hdrjmp, 1) == 0) {
1.1 deraadt 240: extern char *version;
241:
242: if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN)
1.9 millert 243: (void)signal(SIGINT, hdrstop);
1.7 millert 244: if (value("quiet") == NULL)
1.9 millert 245: (void)printf("Mail version %s. Type ? for help.\n",
1.1 deraadt 246: version);
247: announce();
1.9 millert 248: (void)fflush(stdout);
249: (void)signal(SIGINT, prevint);
1.1 deraadt 250: }
251: commands();
1.9 millert 252: (void)signal(SIGHUP, SIG_IGN);
253: (void)signal(SIGINT, SIG_IGN);
254: (void)signal(SIGQUIT, SIG_IGN);
1.1 deraadt 255: quit();
256: exit(0);
257: }
258:
259: /*
260: * Interrupt printing of the headers.
261: */
262: void
263: hdrstop(signo)
264: int signo;
265: {
266:
267: fflush(stdout);
1.5 millert 268: fputs("\nInterrupt\n", stderr);
1.7 millert 269: siglongjmp(hdrjmp, 1);
1.1 deraadt 270: }
271:
272: /*
273: * Compute what the screen size for printing headers should be.
274: * We use the following algorithm for the height:
275: * If baud rate < 1200, use 9
276: * If baud rate = 1200, use 14
277: * If baud rate > 1200, use 24 or ws_row
278: * Width is either 80 or ws_col;
279: */
280: void
281: setscreensize()
282: {
283: struct termios tbuf;
284: struct winsize ws;
285: speed_t ospeed;
286:
287: if (ioctl(1, TIOCGWINSZ, (char *) &ws) < 0)
288: ws.ws_col = ws.ws_row = 0;
289: if (tcgetattr(1, &tbuf) < 0)
290: ospeed = 9600;
291: else
292: ospeed = cfgetospeed(&tbuf);
1.8 millert 293: if (ospeed < B1200)
1.1 deraadt 294: screenheight = 9;
1.8 millert 295: else if (ospeed == B1200)
1.1 deraadt 296: screenheight = 14;
297: else if (ws.ws_row != 0)
298: screenheight = ws.ws_row;
299: else
300: screenheight = 24;
301: if ((realscreenheight = ws.ws_row) == 0)
302: realscreenheight = 24;
303: if ((screenwidth = ws.ws_col) == 0)
304: screenwidth = 80;
305: }
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