| 1 | # |
| 2 | |
| 3 | #include "rcv.h" |
| 4 | #include <sys/stat.h> |
| 5 | |
| 6 | /* |
| 7 | * Mail -- a mail program |
| 8 | * |
| 9 | * Still more user commands. |
| 10 | */ |
| 11 | |
| 12 | static char *SccsId = "@(#)cmd3.c 2.11 %G%"; |
| 13 | |
| 14 | /* |
| 15 | * Process a shell escape by saving signals, ignoring signals, |
| 16 | * and forking a sh -c |
| 17 | */ |
| 18 | |
| 19 | shell(str) |
| 20 | char *str; |
| 21 | { |
| 22 | int (*sig[2])(), stat[1]; |
| 23 | register int t; |
| 24 | char *Shell; |
| 25 | char cmd[BUFSIZ]; |
| 26 | |
| 27 | strcpy(cmd, str); |
| 28 | if (bangexp(cmd) < 0) |
| 29 | return(-1); |
| 30 | if ((Shell = value("SHELL")) == NOSTR) |
| 31 | Shell = SHELL; |
| 32 | for (t = 2; t < 4; t++) |
| 33 | sig[t-2] = sigset(t, SIG_IGN); |
| 34 | t = vfork(); |
| 35 | if (t == 0) { |
| 36 | sigchild(); |
| 37 | for (t = 2; t < 4; t++) |
| 38 | if (sig[t-2] != SIG_IGN) |
| 39 | sigsys(t, SIG_DFL); |
| 40 | execl(Shell, Shell, "-c", cmd, 0); |
| 41 | perror(Shell); |
| 42 | _exit(1); |
| 43 | } |
| 44 | while (wait(stat) != t) |
| 45 | ; |
| 46 | if (t == -1) |
| 47 | perror("fork"); |
| 48 | for (t = 2; t < 4; t++) |
| 49 | sigset(t, sig[t-2]); |
| 50 | printf("!\n"); |
| 51 | return(0); |
| 52 | } |
| 53 | |
| 54 | /* |
| 55 | * Fork an interactive shell. |
| 56 | */ |
| 57 | |
| 58 | dosh(str) |
| 59 | char *str; |
| 60 | { |
| 61 | int (*sig[2])(), stat[1]; |
| 62 | register int t; |
| 63 | char *Shell; |
| 64 | if ((Shell = value("SHELL")) == NOSTR) |
| 65 | Shell = SHELL; |
| 66 | for (t = 2; t < 4; t++) |
| 67 | sig[t-2] = sigset(t, SIG_IGN); |
| 68 | t = vfork(); |
| 69 | if (t == 0) { |
| 70 | sigchild(); |
| 71 | for (t = 2; t < 4; t++) |
| 72 | if (sig[t-2] != SIG_IGN) |
| 73 | sigsys(t, SIG_DFL); |
| 74 | execl(Shell, Shell, 0); |
| 75 | perror(Shell); |
| 76 | _exit(1); |
| 77 | } |
| 78 | while (wait(stat) != t) |
| 79 | ; |
| 80 | if (t == -1) |
| 81 | perror("fork"); |
| 82 | for (t = 2; t < 4; t++) |
| 83 | sigsys(t, sig[t-2]); |
| 84 | putchar('\n'); |
| 85 | return(0); |
| 86 | } |
| 87 | |
| 88 | /* |
| 89 | * Expand the shell escape by expanding unescaped !'s into the |
| 90 | * last issued command where possible. |
| 91 | */ |
| 92 | |
| 93 | char lastbang[128]; |
| 94 | |
| 95 | bangexp(str) |
| 96 | char *str; |
| 97 | { |
| 98 | char bangbuf[BUFSIZ]; |
| 99 | register char *cp, *cp2; |
| 100 | register int n; |
| 101 | int changed = 0; |
| 102 | |
| 103 | cp = str; |
| 104 | cp2 = bangbuf; |
| 105 | n = BUFSIZ; |
| 106 | while (*cp) { |
| 107 | if (*cp == '!') { |
| 108 | if (n < strlen(lastbang)) { |
| 109 | overf: |
| 110 | printf("Command buffer overflow\n"); |
| 111 | return(-1); |
| 112 | } |
| 113 | changed++; |
| 114 | strcpy(cp2, lastbang); |
| 115 | cp2 += strlen(lastbang); |
| 116 | n -= strlen(lastbang); |
| 117 | cp++; |
| 118 | continue; |
| 119 | } |
| 120 | if (*cp == '\\' && cp[1] == '!') { |
| 121 | if (--n <= 1) |
| 122 | goto overf; |
| 123 | *cp2++ = '!'; |
| 124 | cp += 2; |
| 125 | changed++; |
| 126 | } |
| 127 | if (--n <= 1) |
| 128 | goto overf; |
| 129 | *cp2++ = *cp++; |
| 130 | } |
| 131 | *cp2 = 0; |
| 132 | if (changed) { |
| 133 | printf("!%s\n", bangbuf); |
| 134 | fflush(stdout); |
| 135 | } |
| 136 | strcpy(str, bangbuf); |
| 137 | strncpy(lastbang, bangbuf, 128); |
| 138 | lastbang[127] = 0; |
| 139 | return(0); |
| 140 | } |
| 141 | |
| 142 | /* |
| 143 | * Print out a nice help message from some file or another. |
| 144 | */ |
| 145 | |
| 146 | help() |
| 147 | { |
| 148 | register c; |
| 149 | register FILE *f; |
| 150 | |
| 151 | if ((f = fopen(HELPFILE, "r")) == NULL) { |
| 152 | perror(HELPFILE); |
| 153 | return(1); |
| 154 | } |
| 155 | while ((c = getc(f)) != EOF) |
| 156 | putchar(c); |
| 157 | fclose(f); |
| 158 | return(0); |
| 159 | } |
| 160 | |
| 161 | /* |
| 162 | * Change user's working directory. |
| 163 | */ |
| 164 | |
| 165 | schdir(str) |
| 166 | char *str; |
| 167 | { |
| 168 | register char *cp; |
| 169 | |
| 170 | for (cp = str; *cp == ' '; cp++) |
| 171 | ; |
| 172 | if (*cp == '\0') |
| 173 | cp = homedir; |
| 174 | else |
| 175 | if ((cp = expand(cp)) == NOSTR) |
| 176 | return(1); |
| 177 | if (chdir(cp) < 0) { |
| 178 | perror(cp); |
| 179 | return(1); |
| 180 | } |
| 181 | return(0); |
| 182 | } |
| 183 | |
| 184 | /* |
| 185 | * Reply to a list of messages. Extract each name from the |
| 186 | * message header and send them off to mail1() |
| 187 | */ |
| 188 | |
| 189 | respond(msgvec) |
| 190 | int *msgvec; |
| 191 | { |
| 192 | struct message *mp; |
| 193 | char *cp, *cp2, *cp3, *rcv, *replyto; |
| 194 | char buf[2 * LINESIZE], **ap; |
| 195 | struct name *np; |
| 196 | struct header head; |
| 197 | |
| 198 | if (msgvec[1] != 0) { |
| 199 | printf("Sorry, can't reply to multiple messages at once\n"); |
| 200 | return(1); |
| 201 | } |
| 202 | mp = &message[msgvec[0] - 1]; |
| 203 | dot = mp; |
| 204 | rcv = nameof(mp, 1); |
| 205 | replyto = skin(hfield("reply-to", mp)); |
| 206 | strcpy(buf, ""); |
| 207 | if (replyto != NOSTR) |
| 208 | strcpy(buf, replyto); |
| 209 | else { |
| 210 | cp = hfield("to", mp); |
| 211 | if (cp != NOSTR) |
| 212 | strcpy(buf, cp); |
| 213 | } |
| 214 | np = elide(extract(buf, GTO)); |
| 215 | /* rcv = rename(rcv); */ |
| 216 | mapf(np, rcv); |
| 217 | /* |
| 218 | * Delete my name from the reply list, |
| 219 | * and with it, all my alternate names. |
| 220 | */ |
| 221 | np = delname(np, myname, icequal); |
| 222 | if (altnames) |
| 223 | for (ap = altnames; *ap; ap++) |
| 224 | np = delname(np, *ap, icequal); |
| 225 | head.h_seq = 1; |
| 226 | cp = detract(np, 0); |
| 227 | if (cp != NOSTR && replyto == NOSTR) { |
| 228 | strcpy(buf, cp); |
| 229 | strcat(buf, " "); |
| 230 | strcat(buf, rcv); |
| 231 | } |
| 232 | else { |
| 233 | if (cp == NOSTR && replyto != NOSTR) |
| 234 | printf("Empty reply-to field -- replying to author\n"); |
| 235 | if (cp == NOSTR) |
| 236 | strcpy(buf, rcv); |
| 237 | else |
| 238 | strcpy(buf, cp); |
| 239 | } |
| 240 | head.h_to = buf; |
| 241 | head.h_subject = hfield("subject", mp); |
| 242 | if (head.h_subject == NOSTR) |
| 243 | head.h_subject = hfield("subj", mp); |
| 244 | head.h_subject = reedit(head.h_subject); |
| 245 | head.h_cc = NOSTR; |
| 246 | if (replyto == NOSTR) { |
| 247 | cp = hfield("cc", mp); |
| 248 | if (cp != NOSTR) { |
| 249 | np = elide(extract(cp, GCC)); |
| 250 | mapf(np, rcv); |
| 251 | np = delname(np, myname, icequal); |
| 252 | if (altnames != 0) |
| 253 | for (ap = altnames; *ap; ap++) |
| 254 | np = delname(np, *ap, icequal); |
| 255 | head.h_cc = detract(np, 0); |
| 256 | } |
| 257 | } |
| 258 | head.h_bcc = NOSTR; |
| 259 | mail1(&head); |
| 260 | return(0); |
| 261 | } |
| 262 | |
| 263 | /* |
| 264 | * Modify the subject we are replying to to begin with Re: if |
| 265 | * it does not already. |
| 266 | */ |
| 267 | |
| 268 | char * |
| 269 | reedit(subj) |
| 270 | char *subj; |
| 271 | { |
| 272 | char sbuf[10]; |
| 273 | register char *newsubj; |
| 274 | |
| 275 | if (subj == NOSTR) |
| 276 | return(NOSTR); |
| 277 | strncpy(sbuf, subj, 3); |
| 278 | sbuf[3] = 0; |
| 279 | if (icequal(sbuf, "re:")) |
| 280 | return(subj); |
| 281 | newsubj = salloc(strlen(subj) + 6); |
| 282 | sprintf(newsubj, "Re: %s", subj); |
| 283 | return(newsubj); |
| 284 | } |
| 285 | |
| 286 | /* |
| 287 | * Preserve the named messages, so that they will be sent |
| 288 | * back to the system mailbox. |
| 289 | */ |
| 290 | |
| 291 | preserve(msgvec) |
| 292 | int *msgvec; |
| 293 | { |
| 294 | register struct message *mp; |
| 295 | register int *ip, mesg; |
| 296 | |
| 297 | if (edit) { |
| 298 | printf("Cannot \"preserve\" in edit mode\n"); |
| 299 | return(1); |
| 300 | } |
| 301 | for (ip = msgvec; *ip != NULL; ip++) { |
| 302 | mesg = *ip; |
| 303 | mp = &message[mesg-1]; |
| 304 | mp->m_flag |= MPRESERVE; |
| 305 | mp->m_flag &= ~MBOX; |
| 306 | dot = mp; |
| 307 | } |
| 308 | return(0); |
| 309 | } |
| 310 | |
| 311 | /* |
| 312 | * Print the size of each message. |
| 313 | */ |
| 314 | |
| 315 | messize(msgvec) |
| 316 | int *msgvec; |
| 317 | { |
| 318 | register struct message *mp; |
| 319 | register int *ip, mesg; |
| 320 | |
| 321 | for (ip = msgvec; *ip != NULL; ip++) { |
| 322 | mesg = *ip; |
| 323 | mp = &message[mesg-1]; |
| 324 | printf("%d: %ld\n", mesg, mp->m_size); |
| 325 | } |
| 326 | return(0); |
| 327 | } |
| 328 | |
| 329 | /* |
| 330 | * Quit quickly. If we are sourcing, just pop the input level |
| 331 | * by returning an error. |
| 332 | */ |
| 333 | |
| 334 | rexit(e) |
| 335 | { |
| 336 | if (sourcing) |
| 337 | return(1); |
| 338 | if (Tflag != NOSTR) |
| 339 | close(creat(Tflag, 0600)); |
| 340 | exit(e); |
| 341 | } |
| 342 | |
| 343 | /* |
| 344 | * Set or display a variable value. Syntax is similar to that |
| 345 | * of csh. |
| 346 | */ |
| 347 | |
| 348 | set(arglist) |
| 349 | char **arglist; |
| 350 | { |
| 351 | register struct var *vp; |
| 352 | register char *cp, *cp2; |
| 353 | char varbuf[BUFSIZ], **ap, **p; |
| 354 | int errs, h, s; |
| 355 | |
| 356 | if (argcount(arglist) == 0) { |
| 357 | for (h = 0, s = 1; h < HSHSIZE; h++) |
| 358 | for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) |
| 359 | s++; |
| 360 | ap = (char **) salloc(s * sizeof *ap); |
| 361 | for (h = 0, p = ap; h < HSHSIZE; h++) |
| 362 | for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) |
| 363 | *p++ = vp->v_name; |
| 364 | *p = NOSTR; |
| 365 | sort(ap); |
| 366 | for (p = ap; *p != NOSTR; p++) |
| 367 | printf("%s\t%s\n", *p, value(*p)); |
| 368 | return(0); |
| 369 | } |
| 370 | errs = 0; |
| 371 | for (ap = arglist; *ap != NOSTR; ap++) { |
| 372 | cp = *ap; |
| 373 | cp2 = varbuf; |
| 374 | while (*cp != '=' && *cp != '\0') |
| 375 | *cp2++ = *cp++; |
| 376 | *cp2 = '\0'; |
| 377 | if (*cp == '\0') |
| 378 | cp = ""; |
| 379 | else |
| 380 | cp++; |
| 381 | if (equal(varbuf, "")) { |
| 382 | printf("Non-null variable name required\n"); |
| 383 | errs++; |
| 384 | continue; |
| 385 | } |
| 386 | assign(varbuf, cp); |
| 387 | } |
| 388 | return(errs); |
| 389 | } |
| 390 | |
| 391 | /* |
| 392 | * Unset a bunch of variable values. |
| 393 | */ |
| 394 | |
| 395 | unset(arglist) |
| 396 | char **arglist; |
| 397 | { |
| 398 | register struct var *vp, *vp2; |
| 399 | register char *cp; |
| 400 | int errs, h; |
| 401 | char **ap; |
| 402 | |
| 403 | errs = 0; |
| 404 | for (ap = arglist; *ap != NOSTR; ap++) { |
| 405 | if ((vp2 = lookup(*ap)) == NOVAR) { |
| 406 | if (!sourcing) { |
| 407 | printf("\"%s\": undefined variable\n", *ap); |
| 408 | errs++; |
| 409 | } |
| 410 | continue; |
| 411 | } |
| 412 | h = hash(*ap); |
| 413 | if (vp2 == variables[h]) { |
| 414 | variables[h] = variables[h]->v_link; |
| 415 | vfree(vp2->v_name); |
| 416 | vfree(vp2->v_value); |
| 417 | cfree(vp2); |
| 418 | continue; |
| 419 | } |
| 420 | for (vp = variables[h]; vp->v_link != vp2; vp = vp->v_link) |
| 421 | ; |
| 422 | vp->v_link = vp2->v_link; |
| 423 | vfree(vp2->v_name); |
| 424 | vfree(vp2->v_value); |
| 425 | cfree(vp2); |
| 426 | } |
| 427 | return(errs); |
| 428 | } |
| 429 | |
| 430 | /* |
| 431 | * Put add users to a group. |
| 432 | */ |
| 433 | |
| 434 | group(argv) |
| 435 | char **argv; |
| 436 | { |
| 437 | register struct grouphead *gh; |
| 438 | register struct group *gp; |
| 439 | register int h; |
| 440 | int s; |
| 441 | char **ap, *gname, **p; |
| 442 | |
| 443 | if (argcount(argv) == 0) { |
| 444 | for (h = 0, s = 1; h < HSHSIZE; h++) |
| 445 | for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) |
| 446 | s++; |
| 447 | ap = (char **) salloc(s * sizeof *ap); |
| 448 | for (h = 0, p = ap; h < HSHSIZE; h++) |
| 449 | for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) |
| 450 | *p++ = gh->g_name; |
| 451 | *p = NOSTR; |
| 452 | sort(ap); |
| 453 | for (p = ap; *p != NOSTR; p++) |
| 454 | printgroup(*p); |
| 455 | return(0); |
| 456 | } |
| 457 | if (argcount(argv) == 1) { |
| 458 | printgroup(*argv); |
| 459 | return(0); |
| 460 | } |
| 461 | gname = *argv; |
| 462 | h = hash(gname); |
| 463 | if ((gh = findgroup(gname)) == NOGRP) { |
| 464 | gh = (struct grouphead *) calloc(sizeof *gh, 1); |
| 465 | gh->g_name = vcopy(gname); |
| 466 | gh->g_list = NOGE; |
| 467 | gh->g_link = groups[h]; |
| 468 | groups[h] = gh; |
| 469 | } |
| 470 | |
| 471 | /* |
| 472 | * Insert names from the command list into the group. |
| 473 | * Who cares if there are duplicates? They get tossed |
| 474 | * later anyway. |
| 475 | */ |
| 476 | |
| 477 | for (ap = argv+1; *ap != NOSTR; ap++) { |
| 478 | gp = (struct group *) calloc(sizeof *gp, 1); |
| 479 | gp->ge_name = vcopy(*ap); |
| 480 | gp->ge_link = gh->g_list; |
| 481 | gh->g_list = gp; |
| 482 | } |
| 483 | return(0); |
| 484 | } |
| 485 | |
| 486 | /* |
| 487 | * Sort the passed string vecotor into ascending dictionary |
| 488 | * order. |
| 489 | */ |
| 490 | |
| 491 | sort(list) |
| 492 | char **list; |
| 493 | { |
| 494 | register char **ap; |
| 495 | int diction(); |
| 496 | |
| 497 | for (ap = list; *ap != NOSTR; ap++) |
| 498 | ; |
| 499 | if (ap-list < 2) |
| 500 | return; |
| 501 | qsort(list, ap-list, sizeof *list, diction); |
| 502 | } |
| 503 | |
| 504 | /* |
| 505 | * Do a dictionary order comparison of the arguments from |
| 506 | * qsort. |
| 507 | */ |
| 508 | |
| 509 | diction(a, b) |
| 510 | register char **a, **b; |
| 511 | { |
| 512 | return(strcmp(*a, *b)); |
| 513 | } |
| 514 | |
| 515 | /* |
| 516 | * The do nothing command for comments. |
| 517 | */ |
| 518 | |
| 519 | null(e) |
| 520 | { |
| 521 | return(0); |
| 522 | } |
| 523 | |
| 524 | /* |
| 525 | * Print out the current edit file, if we are editing. |
| 526 | * Otherwise, print the name of the person who's mail |
| 527 | * we are reading. |
| 528 | */ |
| 529 | |
| 530 | file(argv) |
| 531 | char **argv; |
| 532 | { |
| 533 | register char *cp; |
| 534 | char fname[BUFSIZ]; |
| 535 | int edit; |
| 536 | |
| 537 | if (argv[0] == NOSTR) { |
| 538 | newfileinfo(); |
| 539 | return(0); |
| 540 | } |
| 541 | |
| 542 | /* |
| 543 | * Acker's! Must switch to the new file. |
| 544 | * We use a funny interpretation -- |
| 545 | * # -- gets the previous file |
| 546 | * % -- gets the invoker's post office box |
| 547 | * %user -- gets someone else's post office box |
| 548 | * & -- gets invoker's mbox file |
| 549 | * string -- reads the given file |
| 550 | */ |
| 551 | |
| 552 | cp = getfilename(argv[0], &edit); |
| 553 | if (cp == NOSTR) |
| 554 | return(-1); |
| 555 | if (setfile(cp, edit)) { |
| 556 | perror(cp); |
| 557 | return(-1); |
| 558 | } |
| 559 | newfileinfo(); |
| 560 | } |
| 561 | |
| 562 | /* |
| 563 | * Evaluate the string given as a new mailbox name. |
| 564 | * Ultimately, we want this to support a number of meta characters. |
| 565 | * Possibly: |
| 566 | * % -- for my system mail box |
| 567 | * %user -- for user's system mail box |
| 568 | * # -- for previous file |
| 569 | * & -- get's invoker's mbox file |
| 570 | * file name -- for any other file |
| 571 | */ |
| 572 | |
| 573 | char prevfile[PATHSIZE]; |
| 574 | |
| 575 | char * |
| 576 | getfilename(name, aedit) |
| 577 | char *name; |
| 578 | int *aedit; |
| 579 | { |
| 580 | register char *cp; |
| 581 | char savename[BUFSIZ]; |
| 582 | char oldmailname[BUFSIZ]; |
| 583 | |
| 584 | /* |
| 585 | * Assume we will be in "edit file" mode, until |
| 586 | * proven wrong. |
| 587 | */ |
| 588 | *aedit = 1; |
| 589 | switch (*name) { |
| 590 | case '%': |
| 591 | *aedit = 0; |
| 592 | strcpy(prevfile, mailname); |
| 593 | if (name[1] != 0) { |
| 594 | strcpy(savename, myname); |
| 595 | strcpy(oldmailname, mailname); |
| 596 | strncpy(myname, name+1, PATHSIZE-1); |
| 597 | myname[PATHSIZE-1] = 0; |
| 598 | findmail(); |
| 599 | cp = savestr(mailname); |
| 600 | strcpy(myname, savename); |
| 601 | strcpy(mailname, oldmailname); |
| 602 | return(cp); |
| 603 | } |
| 604 | strcpy(oldmailname, mailname); |
| 605 | findmail(); |
| 606 | cp = savestr(mailname); |
| 607 | strcpy(mailname, oldmailname); |
| 608 | return(cp); |
| 609 | |
| 610 | case '#': |
| 611 | if (name[1] != 0) |
| 612 | goto regular; |
| 613 | if (prevfile[0] == 0) { |
| 614 | printf("No previous file\n"); |
| 615 | return(NOSTR); |
| 616 | } |
| 617 | cp = savestr(prevfile); |
| 618 | strcpy(prevfile, mailname); |
| 619 | return(cp); |
| 620 | |
| 621 | case '&': |
| 622 | strcpy(prevfile, mailname); |
| 623 | if (name[1] == 0) |
| 624 | return(mbox); |
| 625 | /* Fall into . . . */ |
| 626 | |
| 627 | default: |
| 628 | regular: |
| 629 | strcpy(prevfile, mailname); |
| 630 | cp = expand(name); |
| 631 | return(cp); |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | /* |
| 636 | * Expand file names like echo |
| 637 | */ |
| 638 | |
| 639 | echo(argv) |
| 640 | char **argv; |
| 641 | { |
| 642 | register char **ap; |
| 643 | register char *cp; |
| 644 | |
| 645 | for (ap = argv; *ap != NOSTR; ap++) { |
| 646 | cp = *ap; |
| 647 | if ((cp = expand(cp)) != NOSTR) |
| 648 | printf("%s ", cp); |
| 649 | } |
| 650 | return(0); |
| 651 | } |
| 652 | |
| 653 | /* |
| 654 | * Reply to a series of messages by simply mailing to the senders |
| 655 | * and not messing around with the To: and Cc: lists as in normal |
| 656 | * reply. |
| 657 | */ |
| 658 | |
| 659 | Respond(msgvec) |
| 660 | int msgvec[]; |
| 661 | { |
| 662 | struct header head; |
| 663 | struct message *mp; |
| 664 | register int s, *ap; |
| 665 | register char *cp, *subject; |
| 666 | |
| 667 | for (s = 0, ap = msgvec; *ap != 0; ap++) { |
| 668 | mp = &message[*ap - 1]; |
| 669 | dot = mp; |
| 670 | s += strlen(nameof(mp, 2)) + 1; |
| 671 | } |
| 672 | if (s == 0) |
| 673 | return(0); |
| 674 | cp = salloc(s + 2); |
| 675 | head.h_to = cp; |
| 676 | for (ap = msgvec; *ap != 0; ap++) { |
| 677 | mp = &message[*ap - 1]; |
| 678 | cp = copy(nameof(mp, 2), cp); |
| 679 | *cp++ = ' '; |
| 680 | } |
| 681 | *--cp = 0; |
| 682 | mp = &message[msgvec[0] - 1]; |
| 683 | subject = hfield("subject", mp); |
| 684 | head.h_seq = 0; |
| 685 | if (subject == NOSTR) |
| 686 | subject = hfield("subj", mp); |
| 687 | head.h_subject = reedit(subject); |
| 688 | if (subject != NOSTR) |
| 689 | head.h_seq++; |
| 690 | head.h_cc = NOSTR; |
| 691 | head.h_bcc = NOSTR; |
| 692 | mail1(&head); |
| 693 | return(0); |
| 694 | } |
| 695 | |
| 696 | /* |
| 697 | * Conditional commands. These allow one to parameterize one's |
| 698 | * .mailrc and do some things if sending, others if receiving. |
| 699 | */ |
| 700 | |
| 701 | ifcmd(argv) |
| 702 | char **argv; |
| 703 | { |
| 704 | register char *cp; |
| 705 | |
| 706 | if (cond != CANY) { |
| 707 | printf("Illegal nested \"if\"\n"); |
| 708 | return(1); |
| 709 | } |
| 710 | cond = CANY; |
| 711 | cp = argv[0]; |
| 712 | switch (*cp) { |
| 713 | case 'r': case 'R': |
| 714 | cond = CRCV; |
| 715 | break; |
| 716 | |
| 717 | case 's': case 'S': |
| 718 | cond = CSEND; |
| 719 | break; |
| 720 | |
| 721 | default: |
| 722 | printf("Unrecognized if-keyword: \"%s\"\n", cp); |
| 723 | return(1); |
| 724 | } |
| 725 | return(0); |
| 726 | } |
| 727 | |
| 728 | /* |
| 729 | * Implement 'else'. This is pretty simple -- we just |
| 730 | * flip over the conditional flag. |
| 731 | */ |
| 732 | |
| 733 | elsecmd() |
| 734 | { |
| 735 | |
| 736 | switch (cond) { |
| 737 | case CANY: |
| 738 | printf("\"Else\" without matching \"if\"\n"); |
| 739 | return(1); |
| 740 | |
| 741 | case CSEND: |
| 742 | cond = CRCV; |
| 743 | break; |
| 744 | |
| 745 | case CRCV: |
| 746 | cond = CSEND; |
| 747 | break; |
| 748 | |
| 749 | default: |
| 750 | printf("Mail's idea of conditions is screwed up\n"); |
| 751 | cond = CANY; |
| 752 | break; |
| 753 | } |
| 754 | return(0); |
| 755 | } |
| 756 | |
| 757 | /* |
| 758 | * End of if statement. Just set cond back to anything. |
| 759 | */ |
| 760 | |
| 761 | endifcmd() |
| 762 | { |
| 763 | |
| 764 | if (cond == CANY) { |
| 765 | printf("\"Endif\" without matching \"if\"\n"); |
| 766 | return(1); |
| 767 | } |
| 768 | cond = CANY; |
| 769 | return(0); |
| 770 | } |
| 771 | |
| 772 | /* |
| 773 | * Set the list of alternate names. |
| 774 | */ |
| 775 | alternates(namelist) |
| 776 | char **namelist; |
| 777 | { |
| 778 | register int c; |
| 779 | register char **ap, **ap2, *cp; |
| 780 | |
| 781 | c = argcount(namelist) + 1; |
| 782 | if (c == 1) { |
| 783 | if (altnames == 0) |
| 784 | return(0); |
| 785 | for (ap = altnames; *ap; ap++) |
| 786 | printf("%s ", *ap); |
| 787 | printf("\n"); |
| 788 | return(0); |
| 789 | } |
| 790 | if (altnames != 0) |
| 791 | cfree((char *) altnames); |
| 792 | altnames = (char **) calloc(c, sizeof (char *)); |
| 793 | for (ap = namelist, ap2 = altnames; *ap; ap++, ap2++) { |
| 794 | cp = (char *) calloc(strlen(*ap) + 1, sizeof (char)); |
| 795 | strcpy(cp, *ap); |
| 796 | *ap2 = cp; |
| 797 | } |
| 798 | *ap2 = 0; |
| 799 | return(0); |
| 800 | } |