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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static char copyright[] = 32 "@(#) Copyright (c) 1980, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34 #endif /* not lint */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95"; 39 #endif 40 #endif /* not lint */ 41 #include <sys/cdefs.h> 42 __FBSDID("$FreeBSD$"); 43 44 #include "rcv.h" 45 #include <fcntl.h> 46 #include "extern.h" 47 48 /* 49 * Mail -- a mail program 50 * 51 * Startup -- interface with user. 52 */ 53 54 static jmp_buf hdrjmp; 55 56 extern const char *version; 57 58 int 59 main(int argc, char *argv[]) 60 { 61 int i; 62 struct name *to, *cc, *bcc, *smopts; 63 char *subject, *replyto; 64 char *ef, *rc; 65 char nosrc = 0; 66 sig_t prevint; 67 68 /* 69 * Set up a reasonable environment. 70 * Figure out whether we are being run interactively, 71 * start the SIGCHLD catcher, and so forth. 72 */ 73 (void)signal(SIGCHLD, sigchild); 74 if (isatty(0)) 75 assign("interactive", ""); 76 image = -1; 77 /* 78 * Now, determine how we are being used. 79 * We successively pick off - flags. 80 * If there is anything left, it is the base of the list 81 * of users to mail to. Argp will be set to point to the 82 * first of these users. 83 */ 84 ef = NULL; 85 to = NULL; 86 cc = NULL; 87 bcc = NULL; 88 smopts = NULL; 89 subject = NULL; 90 while ((i = getopt(argc, argv, "FEHINT:b:c:edfins:u:v")) != -1) { 91 switch (i) { 92 case 'T': 93 /* 94 * Next argument is temp file to write which 95 * articles have been read/deleted for netnews. 96 */ 97 Tflag = optarg; 98 if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 99 0600)) < 0) 100 err(1, "%s", Tflag); 101 (void)close(i); 102 break; 103 case 'u': 104 /* 105 * Next argument is person to pretend to be. 106 */ 107 myname = optarg; 108 unsetenv("MAIL"); 109 break; 110 case 'i': 111 /* 112 * User wants to ignore interrupts. 113 * Set the variable "ignore" 114 */ 115 assign("ignore", ""); 116 break; 117 case 'd': 118 debug++; 119 break; 120 case 'e': 121 /* 122 * User wants to check mail and exit. 123 */ 124 assign("checkmode", ""); 125 break; 126 case 'H': 127 /* 128 * User wants a header summary only. 129 */ 130 assign("headersummary", ""); 131 break; 132 case 'F': 133 /* 134 * User wants to record messages to files 135 * named after first recipient username. 136 */ 137 assign("recordrecip", ""); 138 break; 139 case 's': 140 /* 141 * Give a subject field for sending from 142 * non terminal 143 */ 144 subject = optarg; 145 break; 146 case 'f': 147 /* 148 * User is specifying file to "edit" with Mail, 149 * as opposed to reading system mailbox. 150 * If no argument is given after -f, we read his 151 * mbox file. 152 * 153 * getopt() can't handle optional arguments, so here 154 * is an ugly hack to get around it. 155 */ 156 if ((argv[optind] != NULL) && (argv[optind][0] != '-')) 157 ef = argv[optind++]; 158 else 159 ef = "&"; 160 break; 161 case 'n': 162 /* 163 * User doesn't want to source /usr/lib/Mail.rc 164 */ 165 nosrc++; 166 break; 167 case 'N': 168 /* 169 * Avoid initial header printing. 170 */ 171 assign("noheader", ""); 172 break; 173 case 'v': 174 /* 175 * Send mailer verbose flag 176 */ 177 assign("verbose", ""); 178 break; 179 case 'I': 180 /* 181 * We're interactive 182 */ 183 assign("interactive", ""); 184 break; 185 case 'c': 186 /* 187 * Get Carbon Copy Recipient list 188 */ 189 cc = cat(cc, nalloc(optarg, GCC)); 190 break; 191 case 'b': 192 /* 193 * Get Blind Carbon Copy Recipient list 194 */ 195 bcc = cat(bcc, nalloc(optarg, GBCC)); 196 break; 197 case 'E': 198 /* 199 * Don't send empty files. 200 */ 201 assign("dontsendempty", ""); 202 break; 203 case '?': 204 fprintf(stderr, "\ 205 Usage: %s [-dEiInv] [-s subject] [-c cc-addr] [-b bcc-addr] [-F] to-addr ...\n\ 206 %*s [-sendmail-option ...]\n\ 207 %s [-dEHiInNv] [-F] -f [name]\n\ 208 %s [-dEHiInNv] [-F] [-u user]\n\ 209 %s [-d] -e [-f name]\n", __progname, (int)strlen(__progname), "", 210 __progname, __progname, __progname); 211 exit(1); 212 } 213 } 214 for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) 215 to = cat(to, nalloc(argv[i], GTO)); 216 for (; argv[i] != NULL; i++) 217 smopts = cat(smopts, nalloc(argv[i], 0)); 218 /* 219 * Check for inconsistent arguments. 220 */ 221 if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) 222 errx(1, "You must specify direct recipients with -s, -c, or -b."); 223 if (ef != NULL && to != NULL) 224 errx(1, "Cannot give -f and people to send to."); 225 tinit(); 226 setscreensize(); 227 input = stdin; 228 rcvmode = !to; 229 spreserve(); 230 if (!nosrc) { 231 char *s, *path_rc; 232 233 if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) 234 err(1, "malloc(path_rc) failed"); 235 236 strcpy(path_rc, _PATH_MASTER_RC); 237 while ((s = strsep(&path_rc, ":")) != NULL) 238 if (*s != '\0') 239 load(s); 240 } 241 /* 242 * Expand returns a savestr, but load only uses the file name 243 * for fopen, so it's safe to do this. 244 */ 245 if ((rc = getenv("MAILRC")) == NULL) 246 rc = "~/.mailrc"; 247 load(expand(rc)); 248 249 replyto = value("REPLYTO"); 250 if (!rcvmode) { 251 mail(to, cc, bcc, smopts, subject, replyto); 252 /* 253 * why wait? 254 */ 255 exit(senderr); 256 } 257 258 if(value("checkmode") != NULL) { 259 if (ef == NULL) 260 ef = "%"; 261 if (setfile(ef) <= 0) 262 /* Either an error has occurred, or no mail */ 263 exit(1); 264 else 265 exit(0); 266 /* NOTREACHED */ 267 } 268 269 /* 270 * Ok, we are reading mail. 271 * Decide whether we are editing a mailbox or reading 272 * the system mailbox, and open up the right stuff. 273 */ 274 if (ef == NULL) 275 ef = "%"; 276 if (setfile(ef) < 0) 277 exit(1); /* error already reported */ 278 if (setjmp(hdrjmp) == 0) { 279 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 280 (void)signal(SIGINT, hdrstop); 281 if (value("quiet") == NULL) 282 printf("Mail version %s. Type ? for help.\n", 283 version); 284 announce(); 285 (void)fflush(stdout); 286 (void)signal(SIGINT, prevint); 287 } 288 289 /* If we were in header summary mode, it's time to exit. */ 290 if (value("headersummary") != NULL) 291 exit(0); 292 293 commands(); 294 (void)signal(SIGHUP, SIG_IGN); 295 (void)signal(SIGINT, SIG_IGN); 296 (void)signal(SIGQUIT, SIG_IGN); 297 quit(); 298 exit(0); 299 } 300 301 /* 302 * Interrupt printing of the headers. 303 */ 304 /*ARGSUSED*/ 305 void 306 hdrstop(int signo __unused) 307 { 308 309 (void)fflush(stdout); 310 fprintf(stderr, "\nInterrupt\n"); 311 longjmp(hdrjmp, 1); 312 } 313 314 /* 315 * Compute what the screen size for printing headers should be. 316 * We use the following algorithm for the height: 317 * If baud rate < 1200, use 9 318 * If baud rate = 1200, use 14 319 * If baud rate > 1200, use 24 or ws_row 320 * Width is either 80 or ws_col; 321 */ 322 void 323 setscreensize(void) 324 { 325 struct termios tbuf; 326 struct winsize ws; 327 speed_t speed; 328 329 if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) 330 ws.ws_col = ws.ws_row = 0; 331 if (tcgetattr(1, &tbuf) < 0) 332 speed = B9600; 333 else 334 speed = cfgetospeed(&tbuf); 335 if (speed < B1200) 336 screenheight = 9; 337 else if (speed == B1200) 338 screenheight = 14; 339 else if (ws.ws_row != 0) 340 screenheight = ws.ws_row; 341 else 342 screenheight = 24; 343 if ((realscreenheight = ws.ws_row) == 0) 344 realscreenheight = 24; 345 if ((screenwidth = ws.ws_col) == 0) 346 screenwidth = 80; 347 } 348