1 /* $NetBSD: cmd1.c,v 1.14 2001/02/05 02:07:52 christos 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 #if 0 39 static char sccsid[] = "@(#)cmd1.c 8.2 (Berkeley) 4/20/95"; 40 #else 41 __RCSID("$NetBSD: cmd1.c,v 1.14 2001/02/05 02:07:52 christos Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include "rcv.h" 46 #include "extern.h" 47 48 /* 49 * Mail -- a mail program 50 * 51 * User commands. 52 */ 53 extern const struct cmd cmdtab[]; 54 55 /* 56 * Print the current active headings. 57 * Don't change dot if invoker didn't give an argument. 58 */ 59 60 static int screen; 61 62 int 63 headers(v) 64 void *v; 65 { 66 int *msgvec = v; 67 int n, mesg, flag; 68 struct message *mp; 69 int size; 70 71 size = screensize(); 72 n = msgvec[0]; 73 if (n != 0) 74 screen = (n-1)/size; 75 if (screen < 0) 76 screen = 0; 77 mp = &message[screen * size]; 78 if (mp >= &message[msgCount]) 79 mp = &message[msgCount - size]; 80 if (mp < &message[0]) 81 mp = &message[0]; 82 flag = 0; 83 mesg = mp - &message[0]; 84 if (dot != &message[n-1]) 85 dot = mp; 86 for (; mp < &message[msgCount]; mp++) { 87 mesg++; 88 if (mp->m_flag & MDELETED) 89 continue; 90 if (flag++ >= size) 91 break; 92 printhead(mesg); 93 } 94 if (flag == 0) { 95 printf("No more mail.\n"); 96 return(1); 97 } 98 return(0); 99 } 100 101 /* 102 * Scroll to the next/previous screen 103 */ 104 int 105 scroll(v) 106 void *v; 107 { 108 char *arg = v; 109 int s, size; 110 int cur[1]; 111 112 cur[0] = 0; 113 size = screensize(); 114 s = screen; 115 switch (*arg) { 116 case 0: 117 case '+': 118 s++; 119 if (s * size >= msgCount) { 120 printf("On last screenful of messages\n"); 121 return(0); 122 } 123 screen = s; 124 break; 125 126 case '-': 127 if (--s < 0) { 128 printf("On first screenful of messages\n"); 129 return(0); 130 } 131 screen = s; 132 break; 133 134 default: 135 printf("Unrecognized scrolling command \"%s\"\n", arg); 136 return(1); 137 } 138 return(headers(cur)); 139 } 140 141 /* 142 * Compute screen size. 143 */ 144 int 145 screensize() 146 { 147 int s; 148 char *cp; 149 150 if ((cp = value("screen")) != NOSTR && (s = atoi(cp)) > 0) 151 return s; 152 return screenheight - 4; 153 } 154 155 /* 156 * Print out the headlines for each message 157 * in the passed message list. 158 */ 159 int 160 from(v) 161 void *v; 162 { 163 int *msgvec = v; 164 int *ip; 165 166 for (ip = msgvec; *ip != 0; ip++) 167 printhead(*ip); 168 if (--ip >= msgvec) 169 dot = &message[*ip - 1]; 170 return(0); 171 } 172 173 /* 174 * Print out the header of a specific message. 175 * This is a slight improvement to the standard one. 176 */ 177 void 178 printhead(mesg) 179 int mesg; 180 { 181 struct message *mp; 182 char headline[LINESIZE], wcount[LINESIZE], *subjline, dispc, curind; 183 char pbuf[BUFSIZ]; 184 struct headline hl; 185 int subjlen; 186 char *name; 187 188 mp = &message[mesg-1]; 189 (void) readline(setinput(mp), headline, LINESIZE); 190 if ((subjline = hfield("subject", mp)) == NOSTR) 191 subjline = hfield("subj", mp); 192 /* 193 * Bletch! 194 */ 195 curind = dot == mp ? '>' : ' '; 196 dispc = ' '; 197 if (mp->m_flag & MSAVED) 198 dispc = '*'; 199 if (mp->m_flag & MPRESERVE) 200 dispc = 'P'; 201 if ((mp->m_flag & (MREAD|MNEW)) == MNEW) 202 dispc = 'N'; 203 if ((mp->m_flag & (MREAD|MNEW)) == 0) 204 dispc = 'U'; 205 if (mp->m_flag & MBOX) 206 dispc = 'M'; 207 parse(headline, &hl, pbuf); 208 snprintf(wcount, LINESIZE, "%3ld/%-5ld", mp->m_lines, mp->m_size); 209 subjlen = screenwidth - 50 - strlen(wcount); 210 name = value("show-rcpt") != NOSTR ? 211 skin(hfield("to", mp)) : nameof(mp, 0); 212 if (subjline == NOSTR || subjlen < 0) /* pretty pathetic */ 213 printf("%c%c%3d %-20.20s %16.16s %s\n", 214 curind, dispc, mesg, name, hl.l_date, wcount); 215 else 216 printf("%c%c%3d %-20.20s %16.16s %s \"%.*s\"\n", 217 curind, dispc, mesg, name, hl.l_date, wcount, 218 subjlen, subjline); 219 } 220 221 /* 222 * Print out the value of dot. 223 */ 224 int 225 pdot(v) 226 void *v; 227 { 228 printf("%d\n", (int)(dot - &message[0] + 1)); 229 return(0); 230 } 231 232 /* 233 * Print out all the possible commands. 234 */ 235 int 236 pcmdlist(v) 237 void *v; 238 { 239 const struct cmd *cp; 240 int cc; 241 242 printf("Commands are:\n"); 243 for (cc = 0, cp = cmdtab; cp->c_name != NULL; cp++) { 244 cc += strlen(cp->c_name) + 2; 245 if (cc > 72) { 246 printf("\n"); 247 cc = strlen(cp->c_name) + 2; 248 } 249 if ((cp+1)->c_name != NOSTR) 250 printf("%s, ", cp->c_name); 251 else 252 printf("%s\n", cp->c_name); 253 } 254 return(0); 255 } 256 257 /* 258 * Paginate messages, honor ignored fields. 259 */ 260 int 261 more(v) 262 void *v; 263 { 264 int *msgvec = v; 265 return (type1(msgvec, 1, 1)); 266 } 267 268 /* 269 * Paginate messages, even printing ignored fields. 270 */ 271 int 272 More(v) 273 void *v; 274 { 275 int *msgvec = v; 276 277 return (type1(msgvec, 0, 1)); 278 } 279 280 /* 281 * Type out messages, honor ignored fields. 282 */ 283 int 284 type(v) 285 void *v; 286 { 287 int *msgvec = v; 288 289 return(type1(msgvec, 1, 0)); 290 } 291 292 /* 293 * Type out messages, even printing ignored fields. 294 */ 295 int 296 Type(v) 297 void *v; 298 { 299 int *msgvec = v; 300 301 return(type1(msgvec, 0, 0)); 302 } 303 304 /* 305 * Type out the messages requested. 306 */ 307 jmp_buf pipestop; 308 int 309 type1(msgvec, doign, page) 310 int *msgvec; 311 int doign, page; 312 { 313 int *ip; 314 struct message *mp; 315 char *cp; 316 int nlines; 317 FILE *obuf; 318 #if __GNUC__ 319 /* Avoid longjmp clobbering */ 320 (void) &cp; 321 (void) &obuf; 322 #endif 323 324 obuf = stdout; 325 if (setjmp(pipestop)) 326 goto close_pipe; 327 if (value("interactive") != NOSTR && 328 (page || (cp = value("crt")) != NOSTR)) { 329 nlines = 0; 330 if (!page) { 331 for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) 332 nlines += message[*ip - 1].m_lines; 333 } 334 if (page || nlines > (*cp ? atoi(cp) : realscreenheight)) { 335 cp = value("PAGER"); 336 if (cp == NULL || *cp == '\0') 337 cp = _PATH_MORE; 338 obuf = Popen(cp, "w"); 339 if (obuf == NULL) { 340 perror(cp); 341 obuf = stdout; 342 } else 343 signal(SIGPIPE, brokpipe); 344 } 345 } 346 for (ip = msgvec; *ip && ip - msgvec < msgCount; ip++) { 347 mp = &message[*ip - 1]; 348 touch(mp); 349 dot = mp; 350 if (value("quiet") == NOSTR) 351 fprintf(obuf, "Message %d:\n", *ip); 352 (void) sendmessage(mp, obuf, doign ? ignore : 0, NOSTR); 353 } 354 close_pipe: 355 if (obuf != stdout) { 356 /* 357 * Ignore SIGPIPE so it can't cause a duplicate close. 358 */ 359 signal(SIGPIPE, SIG_IGN); 360 Pclose(obuf); 361 signal(SIGPIPE, SIG_DFL); 362 } 363 return(0); 364 } 365 366 /* 367 * Respond to a broken pipe signal -- 368 * probably caused by quitting more. 369 */ 370 void 371 brokpipe(signo) 372 int signo; 373 { 374 longjmp(pipestop, 1); 375 } 376 377 /* 378 * Print the top so many lines of each desired message. 379 * The number of lines is taken from the variable "toplines" 380 * and defaults to 5. 381 */ 382 int 383 top(v) 384 void *v; 385 { 386 int *msgvec = v; 387 int *ip; 388 struct message *mp; 389 int c, topl, lines, lineb; 390 char *valtop, linebuf[LINESIZE]; 391 FILE *ibuf; 392 393 topl = 5; 394 valtop = value("toplines"); 395 if (valtop != NOSTR) { 396 topl = atoi(valtop); 397 if (topl < 0 || topl > 10000) 398 topl = 5; 399 } 400 lineb = 1; 401 for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) { 402 mp = &message[*ip - 1]; 403 touch(mp); 404 dot = mp; 405 if (value("quiet") == NOSTR) 406 printf("Message %d:\n", *ip); 407 ibuf = setinput(mp); 408 c = mp->m_lines; 409 if (!lineb) 410 printf("\n"); 411 for (lines = 0; lines < c && lines <= topl; lines++) { 412 if (readline(ibuf, linebuf, LINESIZE) < 0) 413 break; 414 puts(linebuf); 415 lineb = blankline(linebuf); 416 } 417 } 418 return(0); 419 } 420 421 /* 422 * Touch all the given messages so that they will 423 * get mboxed. 424 */ 425 int 426 stouch(v) 427 void *v; 428 { 429 int *msgvec = v; 430 int *ip; 431 432 for (ip = msgvec; *ip != 0; ip++) { 433 dot = &message[*ip-1]; 434 dot->m_flag |= MTOUCH; 435 dot->m_flag &= ~MPRESERVE; 436 } 437 return(0); 438 } 439 440 /* 441 * Make sure all passed messages get mboxed. 442 */ 443 int 444 mboxit(v) 445 void *v; 446 { 447 int *msgvec = v; 448 int *ip; 449 450 for (ip = msgvec; *ip != 0; ip++) { 451 dot = &message[*ip-1]; 452 dot->m_flag |= MTOUCH|MBOX; 453 dot->m_flag &= ~MPRESERVE; 454 } 455 return(0); 456 } 457 458 /* 459 * List the folders the user currently has. 460 */ 461 int 462 folders(v) 463 void *v; 464 { 465 char dirname[PATHSIZE]; 466 char *cmd; 467 468 if (getfold(dirname) < 0) { 469 printf("No value set for \"folder\"\n"); 470 return 1; 471 } 472 if ((cmd = value("LISTER")) == NOSTR) 473 cmd = "ls"; 474 (void) run_command(cmd, 0, -1, -1, dirname, NOSTR, NOSTR); 475 return 0; 476 } 477 478 /* 479 * Update the mail file with any new messages that have 480 * come in since we started reading mail. 481 */ 482 int 483 inc(v) 484 void *v; 485 { 486 int nmsg, mdot; 487 488 nmsg = incfile(); 489 490 if (nmsg == 0) { 491 printf("No new mail.\n"); 492 } else if (nmsg > 0) { 493 mdot = newfileinfo(msgCount - nmsg); 494 dot = &message[mdot - 1]; 495 } else { 496 printf("\"inc\" command failed...\n"); 497 } 498 499 return 0; 500 } 501