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[] = "@(#)main.c 8.1 (Berkeley) 6/6/93"; 42 #endif /* not lint */ 43 44 #include "rcv.h" 45 #include <err.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, *replyto; 65 char *ef, *cp; 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 replyto = NOSTR; 94 while ((i = getopt(argc, argv, "INT:b:c:dfins:u:v")) != -1) { 95 switch (i) { 96 case 'T': 97 /* 98 * Next argument is temp file to write which 99 * articles have been read/deleted for netnews. 100 */ 101 Tflag = optarg; 102 if ((i = creat(Tflag, 0600)) < 0) { 103 perror(Tflag); 104 exit(1); 105 } 106 close(i); 107 break; 108 case 'u': 109 /* 110 * Next argument is person to pretend to be. 111 */ 112 myname = optarg; 113 break; 114 case 'i': 115 /* 116 * User wants to ignore interrupts. 117 * Set the variable "ignore" 118 */ 119 assign("ignore", ""); 120 break; 121 case 'd': 122 debug++; 123 break; 124 case 's': 125 /* 126 * Give a subject field for sending from 127 * non terminal 128 */ 129 subject = optarg; 130 break; 131 case 'f': 132 /* 133 * User is specifying file to "edit" with Mail, 134 * as opposed to reading system mailbox. 135 * If no argument is given after -f, we read his 136 * mbox file. 137 * 138 * getopt() can't handle optional arguments, so here 139 * is an ugly hack to get around it. 140 */ 141 if ((argv[optind]) && (argv[optind][0] != '-')) 142 ef = argv[optind++]; 143 else 144 ef = "&"; 145 break; 146 case 'n': 147 /* 148 * User doesn't want to source /usr/lib/Mail.rc 149 */ 150 nosrc++; 151 break; 152 case 'N': 153 /* 154 * Avoid initial header printing. 155 */ 156 assign("noheader", ""); 157 break; 158 case 'v': 159 /* 160 * Send mailer verbose flag 161 */ 162 assign("verbose", ""); 163 break; 164 case 'I': 165 /* 166 * We're interactive 167 */ 168 assign("interactive", ""); 169 break; 170 case 'c': 171 /* 172 * Get Carbon Copy Recipient list 173 */ 174 cc = cat(cc, nalloc(optarg, GCC)); 175 break; 176 case 'b': 177 /* 178 * Get Blind Carbon Copy Recipient list 179 */ 180 bcc = cat(bcc, nalloc(optarg, GBCC)); 181 break; 182 case '?': 183 fputs("\ 184 Usage: mail [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ 185 [- sendmail-options ...]\n\ 186 mail [-iInNv] -f [name]\n\ 187 mail [-iInNv] [-u user]\n", 188 stderr); 189 exit(1); 190 } 191 } 192 for (i = optind; (argv[i]) && (*argv[i] != '-'); i++) 193 to = cat(to, nalloc(argv[i], GTO)); 194 for (; argv[i]; i++) 195 smopts = cat(smopts, nalloc(argv[i], 0)); 196 /* 197 * Check for inconsistent arguments. 198 */ 199 if (to == NIL && (subject != NOSTR || cc != NIL || bcc != NIL)) { 200 fputs("You must specify direct recipients with -s, -c, or -b.\n", stderr); 201 exit(1); 202 } 203 if (ef != NOSTR && to != NIL) { 204 fprintf(stderr, "Cannot give -f and people to send to.\n"); 205 exit(1); 206 } 207 tinit(); 208 setscreensize(); 209 input = stdin; 210 rcvmode = !to; 211 spreserve(); 212 if (!nosrc) { 213 char *s, *path_rc; 214 215 path_rc = malloc(sizeof(_PATH_MASTER_RC)); 216 if (path_rc == NULL) 217 errx(1, "malloc(path_rc) failed"); 218 219 strcpy(path_rc, _PATH_MASTER_RC); 220 while ((s = strsep(&path_rc, ":")) != NULL) 221 if (*s != '\0') 222 load(s); 223 } 224 if ((cp = getenv("REPLYTO")) != NULL) 225 replyto = cp; 226 227 /* 228 * Expand returns a savestr, but load only uses the file name 229 * for fopen, so it's safe to do this. 230 */ 231 load(expand("~/.mailrc")); 232 if (!rcvmode) { 233 mail(to, cc, bcc, smopts, subject, replyto); 234 /* 235 * why wait? 236 */ 237 exit(senderr); 238 } 239 /* 240 * Ok, we are reading mail. 241 * Decide whether we are editing a mailbox or reading 242 * the system mailbox, and open up the right stuff. 243 */ 244 if (ef == NOSTR) 245 ef = "%"; 246 if (setfile(ef) < 0) 247 exit(1); /* error already reported */ 248 if (setjmp(hdrjmp) == 0) { 249 extern char *version; 250 251 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 252 signal(SIGINT, hdrstop); 253 if (value("quiet") == NOSTR) 254 printf("Mail version %s. Type ? for help.\n", 255 version); 256 announce(); 257 fflush(stdout); 258 signal(SIGINT, prevint); 259 } 260 commands(); 261 signal(SIGHUP, SIG_IGN); 262 signal(SIGINT, SIG_IGN); 263 signal(SIGQUIT, SIG_IGN); 264 quit(); 265 exit(0); 266 } 267 268 /* 269 * Interrupt printing of the headers. 270 */ 271 void 272 hdrstop(signo) 273 int signo; 274 { 275 276 fflush(stdout); 277 fprintf(stderr, "\nInterrupt\n"); 278 longjmp(hdrjmp, 1); 279 } 280 281 /* 282 * Compute what the screen size for printing headers should be. 283 * We use the following algorithm for the height: 284 * If baud rate < 1200, use 9 285 * If baud rate = 1200, use 14 286 * If baud rate > 1200, use 24 or ws_row 287 * Width is either 80 or ws_col; 288 */ 289 void 290 setscreensize() 291 { 292 struct winsize ws; 293 struct termios tio; 294 speed_t speed = 0; 295 296 if (ioctl(1, TIOCGWINSZ, (char *) &ws) < 0) 297 ws.ws_col = ws.ws_row = 0; 298 if (tcgetattr(1, &tio) != -1) 299 speed = cfgetospeed(&tio); 300 if (speed <= 0) 301 speed = B9600; 302 if (speed < B1200) 303 screenheight = 9; 304 else if (speed == B1200) 305 screenheight = 14; 306 else if (ws.ws_row != 0) 307 screenheight = ws.ws_row; 308 else 309 screenheight = 24; 310 if ((realscreenheight = ws.ws_row) == 0) 311 realscreenheight = 24; 312 if ((screenwidth = ws.ws_col) == 0) 313 screenwidth = 80; 314 } 315