1 /* $NetBSD: main.c,v 1.9 1998/10/08 17:36:56 wsanchez Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95"; 45 #else 46 __RCSID("$NetBSD: main.c,v 1.9 1998/10/08 17:36:56 wsanchez Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #define EXTERN 51 #include "rcv.h" 52 #undef EXTERN 53 54 #include "extern.h" 55 56 int main __P((int, char **)); 57 58 /* 59 * Mail -- a mail program 60 * 61 * Startup -- interface with user. 62 */ 63 64 jmp_buf hdrjmp; 65 66 int 67 main(argc, argv) 68 int argc; 69 char *argv[]; 70 { 71 int i; 72 struct name *to, *cc, *bcc, *smopts; 73 char *subject; 74 char *ef; 75 char nosrc = 0; 76 sig_t prevint; 77 char *rc; 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 */ 84 (void) signal(SIGCHLD, sigchild); 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 */ 95 ef = NOSTR; 96 to = NIL; 97 cc = NIL; 98 bcc = NIL; 99 smopts = NIL; 100 subject = NOSTR; 101 while ((i = getopt(argc, argv, "INT:b:c:dfins:u:v")) != -1) { 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; 109 if ((i = creat(Tflag, 0600)) < 0) { 110 perror(Tflag); 111 exit(1); 112 } 113 close(i); 114 break; 115 case 'u': 116 /* 117 * Next argument is person to pretend to be. 118 */ 119 myname = optarg; 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 '?': 190 fputs("\ 191 Usage: mail [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ 192 [- sendmail-options ...]\n\ 193 mail [-iInNv] -f [name]\n\ 194 mail [-iInNv] [-u user]\n", 195 stderr); 196 exit(1); 197 } 198 } 199 for (i = optind; (argv[i]) && (*argv[i] != '-'); i++) 200 to = cat(to, nalloc(argv[i], GTO)); 201 for (; argv[i]; i++) 202 smopts = cat(smopts, nalloc(argv[i], 0)); 203 /* 204 * Check for inconsistent arguments. 205 */ 206 if (to == NIL && (subject != NOSTR || cc != NIL || bcc != NIL)) { 207 fputs("You must specify direct recipients with -s, -c, or -b.\n", stderr); 208 exit(1); 209 } 210 if (ef != NOSTR && to != NIL) { 211 fprintf(stderr, "Cannot give -f and people to send to.\n"); 212 exit(1); 213 } 214 tinit(); 215 setscreensize(); 216 input = stdin; 217 rcvmode = !to; 218 spreserve(); 219 if (!nosrc) 220 load(_PATH_MASTER_RC); 221 /* 222 * Expand returns a savestr, but load only uses the file name 223 * for fopen, so it's safe to do this. 224 */ 225 if ((rc = getenv("MAILRC")) == 0) 226 rc = "~/.mailrc"; 227 load(expand(rc)); 228 if (!rcvmode) { 229 mail(to, cc, bcc, smopts, subject); 230 /* 231 * why wait? 232 */ 233 exit(senderr); 234 } 235 /* 236 * Ok, we are reading mail. 237 * Decide whether we are editing a mailbox or reading 238 * the system mailbox, and open up the right stuff. 239 */ 240 if (ef == NOSTR) 241 ef = "%"; 242 if (setfile(ef) < 0) 243 exit(1); /* error already reported */ 244 if (setjmp(hdrjmp) == 0) { 245 extern char *version; 246 247 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 248 signal(SIGINT, hdrstop); 249 if (value("quiet") == NOSTR) 250 printf("Mail version %s. Type ? for help.\n", 251 version); 252 announce(); 253 fflush(stdout); 254 signal(SIGINT, prevint); 255 } 256 commands(); 257 signal(SIGHUP, SIG_IGN); 258 signal(SIGINT, SIG_IGN); 259 signal(SIGQUIT, SIG_IGN); 260 quit(); 261 exit(0); 262 } 263 264 /* 265 * Interrupt printing of the headers. 266 */ 267 void 268 hdrstop(signo) 269 int signo; 270 { 271 272 fflush(stdout); 273 fprintf(stderr, "\nInterrupt\n"); 274 longjmp(hdrjmp, 1); 275 } 276 277 /* 278 * Compute what the screen size for printing headers should be. 279 * We use the following algorithm for the height: 280 * If baud rate < 1200, use 9 281 * If baud rate = 1200, use 14 282 * If baud rate > 1200, use 24 or ws_row 283 * Width is either 80 or ws_col; 284 */ 285 void 286 setscreensize() 287 { 288 struct termios tbuf; 289 struct winsize ws; 290 speed_t ospeed; 291 292 if (ioctl(1, TIOCGWINSZ, (char *) &ws) < 0) 293 ws.ws_col = ws.ws_row = 0; 294 if (tcgetattr(1, &tbuf) < 0) 295 ospeed = 9600; 296 else 297 ospeed = cfgetospeed(&tbuf); 298 if (ospeed < 1200) 299 screenheight = 9; 300 else if (ospeed == 1200) 301 screenheight = 14; 302 else if (ws.ws_row != 0) 303 screenheight = ws.ws_row; 304 else 305 screenheight = 24; 306 if ((realscreenheight = ws.ws_row) == 0) 307 realscreenheight = 24; 308 if ((screenwidth = ws.ws_col) == 0) 309 screenwidth = 80; 310 } 311