1 /* 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1980, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 static char sccsid[] = "from: @(#)main.c 8.1 (Berkeley) 6/6/93"; 42 static char rcsid[] = "$Id: main.c,v 1.3 1994/06/29 05:09:34 deraadt Exp $"; 43 #endif /* not lint */ 44 45 #include "rcv.h" 46 #include <fcntl.h> 47 #include "extern.h" 48 49 /* 50 * Mail -- a mail program 51 * 52 * Startup -- interface with user. 53 */ 54 55 jmp_buf hdrjmp; 56 57 int 58 main(argc, argv) 59 int argc; 60 char *argv[]; 61 { 62 register int i; 63 struct name *to, *cc, *bcc, *smopts; 64 char *subject; 65 char *ef; 66 char nosrc = 0; 67 void hdrstop(); 68 sig_t prevint; 69 void sigchild(); 70 71 /* 72 * Set up a reasonable environment. 73 * Figure out whether we are being run interactively, 74 * start the SIGCHLD catcher, and so forth. 75 */ 76 (void) signal(SIGCHLD, sigchild); 77 if (isatty(0)) 78 assign("interactive", ""); 79 image = -1; 80 /* 81 * Now, determine how we are being used. 82 * We successively pick off - flags. 83 * If there is anything left, it is the base of the list 84 * of users to mail to. Argp will be set to point to the 85 * first of these users. 86 */ 87 ef = NOSTR; 88 to = NIL; 89 cc = NIL; 90 bcc = NIL; 91 smopts = NIL; 92 subject = NOSTR; 93 while ((i = getopt(argc, argv, "INT:b:c:dfins:u:v")) != EOF) { 94 switch (i) { 95 case 'T': 96 /* 97 * Next argument is temp file to write which 98 * articles have been read/deleted for netnews. 99 */ 100 Tflag = optarg; 101 if ((i = creat(Tflag, 0600)) < 0) { 102 perror(Tflag); 103 exit(1); 104 } 105 close(i); 106 break; 107 case 'u': 108 /* 109 * Next argument is person to pretend to be. 110 */ 111 myname = optarg; 112 break; 113 case 'i': 114 /* 115 * User wants to ignore interrupts. 116 * Set the variable "ignore" 117 */ 118 assign("ignore", ""); 119 break; 120 case 'd': 121 debug++; 122 break; 123 case 's': 124 /* 125 * Give a subject field for sending from 126 * non terminal 127 */ 128 subject = optarg; 129 break; 130 case 'f': 131 /* 132 * User is specifying file to "edit" with Mail, 133 * as opposed to reading system mailbox. 134 * If no argument is given after -f, we read his 135 * mbox file. 136 * 137 * getopt() can't handle optional arguments, so here 138 * is an ugly hack to get around it. 139 */ 140 if ((argv[optind]) && (argv[optind][0] != '-')) 141 ef = argv[optind++]; 142 else 143 ef = "&"; 144 break; 145 case 'n': 146 /* 147 * User doesn't want to source /usr/lib/Mail.rc 148 */ 149 nosrc++; 150 break; 151 case 'N': 152 /* 153 * Avoid initial header printing. 154 */ 155 assign("noheader", ""); 156 break; 157 case 'v': 158 /* 159 * Send mailer verbose flag 160 */ 161 assign("verbose", ""); 162 break; 163 case 'I': 164 /* 165 * We're interactive 166 */ 167 assign("interactive", ""); 168 break; 169 case 'c': 170 /* 171 * Get Carbon Copy Recipient list 172 */ 173 cc = cat(cc, nalloc(optarg, GCC)); 174 break; 175 case 'b': 176 /* 177 * Get Blind Carbon Copy Recipient list 178 */ 179 bcc = cat(bcc, nalloc(optarg, GBCC)); 180 break; 181 case '?': 182 fputs("\ 183 Usage: mail [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ 184 [- sendmail-options ...]\n\ 185 mail [-iInNv] -f [name]\n\ 186 mail [-iInNv] [-u user]\n", 187 stderr); 188 exit(1); 189 } 190 } 191 for (i = optind; (argv[i]) && (*argv[i] != '-'); i++) 192 to = cat(to, nalloc(argv[i], GTO)); 193 for (; argv[i]; i++) 194 smopts = cat(smopts, nalloc(argv[i], 0)); 195 /* 196 * Check for inconsistent arguments. 197 */ 198 if (to == NIL && (subject != NOSTR || cc != NIL || bcc != NIL)) { 199 fputs("You must specify direct recipients with -s, -c, or -b.\n", stderr); 200 exit(1); 201 } 202 if (ef != NOSTR && to != NIL) { 203 fprintf(stderr, "Cannot give -f and people to send to.\n"); 204 exit(1); 205 } 206 tinit(); 207 setscreensize(); 208 input = stdin; 209 rcvmode = !to; 210 spreserve(); 211 if (!nosrc) 212 load(_PATH_MASTER_RC); 213 /* 214 * Expand returns a savestr, but load only uses the file name 215 * for fopen, so it's safe to do this. 216 */ 217 load(expand("~/.mailrc")); 218 if (!rcvmode) { 219 mail(to, cc, bcc, smopts, subject); 220 /* 221 * why wait? 222 */ 223 exit(senderr); 224 } 225 /* 226 * Ok, we are reading mail. 227 * Decide whether we are editing a mailbox or reading 228 * the system mailbox, and open up the right stuff. 229 */ 230 if (ef == NOSTR) 231 ef = "%"; 232 if (setfile(ef) < 0) 233 exit(1); /* error already reported */ 234 if (setjmp(hdrjmp) == 0) { 235 extern char *version; 236 237 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 238 signal(SIGINT, hdrstop); 239 if (value("quiet") == NOSTR) 240 printf("Mail version %s. Type ? for help.\n", 241 version); 242 announce(); 243 fflush(stdout); 244 signal(SIGINT, prevint); 245 } 246 commands(); 247 signal(SIGHUP, SIG_IGN); 248 signal(SIGINT, SIG_IGN); 249 signal(SIGQUIT, SIG_IGN); 250 quit(); 251 exit(0); 252 } 253 254 /* 255 * Interrupt printing of the headers. 256 */ 257 void 258 hdrstop(signo) 259 int signo; 260 { 261 262 fflush(stdout); 263 fprintf(stderr, "\nInterrupt\n"); 264 longjmp(hdrjmp, 1); 265 } 266 267 /* 268 * Compute what the screen size for printing headers should be. 269 * We use the following algorithm for the height: 270 * If baud rate < 1200, use 9 271 * If baud rate = 1200, use 14 272 * If baud rate > 1200, use 24 or ws_row 273 * Width is either 80 or ws_col; 274 */ 275 void 276 setscreensize() 277 { 278 struct sgttyb tbuf; 279 struct winsize ws; 280 281 if (ioctl(1, TIOCGWINSZ, (char *) &ws) < 0) 282 ws.ws_col = ws.ws_row = 0; 283 if (ioctl(1, TIOCGETP, &tbuf) < 0) 284 tbuf.sg_ospeed = B9600; 285 if (tbuf.sg_ospeed < B1200) 286 screenheight = 9; 287 else if (tbuf.sg_ospeed == B1200) 288 screenheight = 14; 289 else if (ws.ws_row != 0) 290 screenheight = ws.ws_row; 291 else 292 screenheight = 24; 293 if ((realscreenheight = ws.ws_row) == 0) 294 realscreenheight = 24; 295 if ((screenwidth = ws.ws_col) == 0) 296 screenwidth = 80; 297 } 298