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 #if 0 42 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95"; 43 #endif 44 #endif /* not lint */ 45 #include <sys/cdefs.h> 46 __FBSDID("$FreeBSD$"); 47 48 #include "rcv.h" 49 #include <fcntl.h> 50 #include "extern.h" 51 52 /* 53 * Mail -- a mail program 54 * 55 * Startup -- interface with user. 56 */ 57 58 static jmp_buf hdrjmp; 59 60 extern const char *version; 61 62 int 63 main(argc, argv) 64 int argc; 65 char *argv[]; 66 { 67 int i; 68 struct name *to, *cc, *bcc, *smopts; 69 char *subject, *replyto; 70 char *ef, *rc; 71 char nosrc = 0; 72 sig_t prevint; 73 74 /* 75 * Set up a reasonable environment. 76 * Figure out whether we are being run interactively, 77 * start the SIGCHLD catcher, and so forth. 78 */ 79 (void)signal(SIGCHLD, sigchild); 80 if (isatty(0)) 81 assign("interactive", ""); 82 image = -1; 83 /* 84 * Now, determine how we are being used. 85 * We successively pick off - flags. 86 * If there is anything left, it is the base of the list 87 * of users to mail to. Argp will be set to point to the 88 * first of these users. 89 */ 90 ef = NULL; 91 to = NULL; 92 cc = NULL; 93 bcc = NULL; 94 smopts = NULL; 95 subject = NULL; 96 while ((i = getopt(argc, argv, "FEHINT:b:c:edfins:u:v")) != -1) { 97 switch (i) { 98 case 'T': 99 /* 100 * Next argument is temp file to write which 101 * articles have been read/deleted for netnews. 102 */ 103 Tflag = optarg; 104 if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 105 0600)) < 0) 106 err(1, "%s", Tflag); 107 (void)close(i); 108 break; 109 case 'u': 110 /* 111 * Next argument is person to pretend to be. 112 */ 113 myname = optarg; 114 unsetenv("MAIL"); 115 break; 116 case 'i': 117 /* 118 * User wants to ignore interrupts. 119 * Set the variable "ignore" 120 */ 121 assign("ignore", ""); 122 break; 123 case 'd': 124 debug++; 125 break; 126 case 'e': 127 /* 128 * User wants to check mail and exit. 129 */ 130 assign("checkmode", ""); 131 break; 132 case 'H': 133 /* 134 * User wants a header summary only. 135 */ 136 assign("headersummary", ""); 137 break; 138 case 'F': 139 /* 140 * User wants to record messages to files 141 * named after first recipient username. 142 */ 143 assign("recordrecip", ""); 144 break; 145 case 's': 146 /* 147 * Give a subject field for sending from 148 * non terminal 149 */ 150 subject = optarg; 151 break; 152 case 'f': 153 /* 154 * User is specifying file to "edit" with Mail, 155 * as opposed to reading system mailbox. 156 * If no argument is given after -f, we read his 157 * mbox file. 158 * 159 * getopt() can't handle optional arguments, so here 160 * is an ugly hack to get around it. 161 */ 162 if ((argv[optind] != NULL) && (argv[optind][0] != '-')) 163 ef = argv[optind++]; 164 else 165 ef = "&"; 166 break; 167 case 'n': 168 /* 169 * User doesn't want to source /usr/lib/Mail.rc 170 */ 171 nosrc++; 172 break; 173 case 'N': 174 /* 175 * Avoid initial header printing. 176 */ 177 assign("noheader", ""); 178 break; 179 case 'v': 180 /* 181 * Send mailer verbose flag 182 */ 183 assign("verbose", ""); 184 break; 185 case 'I': 186 /* 187 * We're interactive 188 */ 189 assign("interactive", ""); 190 break; 191 case 'c': 192 /* 193 * Get Carbon Copy Recipient list 194 */ 195 cc = cat(cc, nalloc(optarg, GCC)); 196 break; 197 case 'b': 198 /* 199 * Get Blind Carbon Copy Recipient list 200 */ 201 bcc = cat(bcc, nalloc(optarg, GBCC)); 202 break; 203 case 'E': 204 /* 205 * Don't send empty files. 206 */ 207 assign("dontsendempty", ""); 208 break; 209 case '?': 210 fprintf(stderr, "\ 211 Usage: %s [-dEiInv] [-s subject] [-c cc-addr] [-b bcc-addr] [-F] to-addr ...\n\ 212 %*s [-sendmail-option ...]\n\ 213 %s [-dEHiInNv] [-F] -f [name]\n\ 214 %s [-dEHiInNv] [-F] [-u user]\n\ 215 %s [-d] -e [-f name]\n", __progname, strlen(__progname), "", 216 __progname, __progname, __progname); 217 exit(1); 218 } 219 } 220 for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) 221 to = cat(to, nalloc(argv[i], GTO)); 222 for (; argv[i] != NULL; i++) 223 smopts = cat(smopts, nalloc(argv[i], 0)); 224 /* 225 * Check for inconsistent arguments. 226 */ 227 if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) 228 errx(1, "You must specify direct recipients with -s, -c, or -b."); 229 if (ef != NULL && to != NULL) 230 errx(1, "Cannot give -f and people to send to."); 231 tinit(); 232 setscreensize(); 233 input = stdin; 234 rcvmode = !to; 235 spreserve(); 236 if (!nosrc) { 237 char *s, *path_rc; 238 239 if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) 240 err(1, "malloc(path_rc) failed"); 241 242 strcpy(path_rc, _PATH_MASTER_RC); 243 while ((s = strsep(&path_rc, ":")) != NULL) 244 if (*s != '\0') 245 load(s); 246 } 247 /* 248 * Expand returns a savestr, but load only uses the file name 249 * for fopen, so it's safe to do this. 250 */ 251 if ((rc = getenv("MAILRC")) == NULL) 252 rc = "~/.mailrc"; 253 load(expand(rc)); 254 255 replyto = value("REPLYTO"); 256 if (!rcvmode) { 257 mail(to, cc, bcc, smopts, subject, replyto); 258 /* 259 * why wait? 260 */ 261 exit(senderr); 262 } 263 264 if(value("checkmode") != NULL) { 265 if (ef == NULL) 266 ef = "%"; 267 if (setfile(ef) <= 0) 268 /* Either an error has occured, or no mail */ 269 exit(1); 270 else 271 exit(0); 272 /* NOTREACHED */ 273 } 274 275 /* 276 * Ok, we are reading mail. 277 * Decide whether we are editing a mailbox or reading 278 * the system mailbox, and open up the right stuff. 279 */ 280 if (ef == NULL) 281 ef = "%"; 282 if (setfile(ef) < 0) 283 exit(1); /* error already reported */ 284 if (setjmp(hdrjmp) == 0) { 285 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 286 (void)signal(SIGINT, hdrstop); 287 if (value("quiet") == NULL) 288 printf("Mail version %s. Type ? for help.\n", 289 version); 290 announce(); 291 (void)fflush(stdout); 292 (void)signal(SIGINT, prevint); 293 } 294 295 /* If we were in header summary mode, it's time to exit. */ 296 if (value("headersummary") != NULL) 297 exit(0); 298 299 commands(); 300 (void)signal(SIGHUP, SIG_IGN); 301 (void)signal(SIGINT, SIG_IGN); 302 (void)signal(SIGQUIT, SIG_IGN); 303 quit(); 304 exit(0); 305 } 306 307 /* 308 * Interrupt printing of the headers. 309 */ 310 /*ARGSUSED*/ 311 void 312 hdrstop(signo) 313 int signo; 314 { 315 316 (void)fflush(stdout); 317 fprintf(stderr, "\nInterrupt\n"); 318 longjmp(hdrjmp, 1); 319 } 320 321 /* 322 * Compute what the screen size for printing headers should be. 323 * We use the following algorithm for the height: 324 * If baud rate < 1200, use 9 325 * If baud rate = 1200, use 14 326 * If baud rate > 1200, use 24 or ws_row 327 * Width is either 80 or ws_col; 328 */ 329 void 330 setscreensize() 331 { 332 struct termios tbuf; 333 struct winsize ws; 334 speed_t speed; 335 336 if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) 337 ws.ws_col = ws.ws_row = 0; 338 if (tcgetattr(1, &tbuf) < 0) 339 speed = B9600; 340 else 341 speed = cfgetospeed(&tbuf); 342 if (speed < B1200) 343 screenheight = 9; 344 else if (speed == B1200) 345 screenheight = 14; 346 else if (ws.ws_row != 0) 347 screenheight = ws.ws_row; 348 else 349 screenheight = 24; 350 if ((realscreenheight = ws.ws_row) == 0) 351 realscreenheight = 24; 352 if ((screenwidth = ws.ws_col) == 0) 353 screenwidth = 80; 354 } 355