git.marmaro.de Git - mmh/blob - uip/whatnow.c

   1 /*
   2 ** whatnow.c -- the WhatNow shell
   3 **
   4 ** This code is Copyright (c) 2002, by the authors of nmh.  See the
   5 ** COPYRIGHT file in the root directory of the nmh distribution for
   6 ** complete copyright information.
   7 **
   8 **  The inclusion of attachments is eased by
   9 **  using the header field name mechanism added to anno and send.
  10 **  The header field name for attachments is predefined.
  11 **
  12 **  Several commands have been added at the whatnow prompt:
  13 **
  14 **        cd [ directory ]        This option works just like the shell's
  15 **                                cd command and lets the user change the
  16 **                                directory from which attachments are
  17 **                                taken so that long path names are not
  18 **                                needed with every file.
  19 **
  20 **        ls [ ls-options ]       This option works just like the normal
  21 **                                ls command and exists to allow the user
  22 **                                to verify file names in the directory.
  23 **
  24 **        pwd                     This option works just like the normal
  25 **                                pwd command and exists to allow the user
  26 **                                to verify the directory.
  27 **
  28 **        attach files            This option attaches the named files to
  29 **                                the draft.
  30 **
  31 **        alist                   This option lists the attachments on the
  32 **                                draft.
  33 **
  34 **        detach files            This option removes attachments from the
  35 **        detach -n numbers       draft.  This can be done by file name or
  36 **                                by attachment number.
  37 */
  38
  39 #include <h/mh.h>
  40 #include <fcntl.h>
  41 #include <signal.h>
  42 #include <h/mime.h>
  43 #include <h/utils.h>
  44
  45 static struct swit whatnowswitches[] = {
  46 #define EDITRSW  0
  47         { "editor editor", 0 },
  48 #define PRMPTSW  1
  49         { "prompt string", 4 },
  50 #define VERSIONSW  2
  51         { "version", 0 },
  52 #define HELPSW  3
  53         { "help", 0 },
  54         { NULL, 0 }
  55 };
  56
  57 /*
  58 ** Options at the "whatnow" prompt
  59 */
  60 static struct swit aleqs[] = {
  61 #define EDITSW  0
  62         { "edit [<editor> <switches>]", 0 },
  63 #define REFILEOPT  1
  64         { "refile [<switches>] +folder", 0 },
  65 #define DISPSW  2
  66         { "display", 0 },
  67 #define LISTSW  3
  68         { "list", 0 },
  69 #define SENDSW  4
  70         { "send [<switches>]", 0 },
  71 #define QUITSW  5
  72         { "quit", 0 },
  73 #define DELETESW  6
  74         { "delete", 0 },
  75 #define CDCMDSW  7
  76         { "cd [directory]", 0 },
  77 #define PWDCMDSW  8
  78         { "pwd", 0 },
  79 #define LSCMDSW  9
  80         { "ls", 0 },
  81 #define ATTACHCMDSW  10
  82         { "attach", 0 },
  83 #define DETACHCMDSW  11
  84         { "detach [-n]", 0 },
  85 #define ALISTCMDSW  12
  86         { "alist", 0 },
  87         { NULL, 0 }
  88 };
  89
  90 static char *myprompt = "\nWhat now? ";
  91
  92 /*
  93 ** static prototypes
  94 */
  95 static int editfile(char **, char **, char *, int, struct msgs *,
  96         char *, char *);
  97 static int sendfile(char **, char *);
  98 static int refile(char **, char *);
  99 static int removefile(char *);
 100 static void writelscmd(char *, int, char **);
 101 static void writesomecmd(char *buf, int bufsz, char *cmd, char *trailcmd, char **argp);
 102 static FILE* popen_in_dir(const char *dir, const char *cmd, const char *type);
 103 static int system_in_dir(const char *dir, const char *cmd);
 104
 105
 106 #ifdef HAVE_LSTAT
 107 static int copyf(char *, char *);
 108 #endif
 109
 110
 111 int
 112 main(int argc, char **argv)
 113 {
 114         int use = 0;
 115         char *cp;
 116         char *ed = NULL, *drft = NULL, *msgnam = NULL;
 117         char buf[BUFSIZ], prompt[BUFSIZ];
 118         char **argp, **arguments;
 119         struct stat st;
 120         char cwd[MAXPATHLEN + 1];  /* current working directory */
 121         char file[MAXPATHLEN + 1];  /* file name buffer */
 122         char shell[MAXPATHLEN + 1];  /* shell response buffer */
 123         FILE *f;  /* read pointer for bgnd proc */
 124         int n;  /* set on -n to detach command */
 125
 126 #ifdef LOCALE
 127         setlocale(LC_ALL, "");
 128 #endif
 129
 130         invo_name = mhbasename(argv[0]);
 131
 132         /* read user profile/context */
 133         context_read();
 134
 135         arguments = getarguments(invo_name, argc, argv, 1);
 136         argp = arguments;
 137
 138         /*
 139         ** Get the initial current working directory.
 140         */
 141
 142         if (!getcwd(cwd, sizeof (cwd))) {
 143                 adios("getcwd", "could not get working directory");
 144         }
 145
 146         while ((cp = *argp++)) {
 147                 if (*cp == '-') {
 148                         switch (smatch(++cp, whatnowswitches)) {
 149                         case AMBIGSW:
 150                                 ambigsw(cp, whatnowswitches);
 151                                 done(1);
 152                         case UNKWNSW:
 153                                 adios(NULL, "-%s unknown", cp);
 154
 155                         case HELPSW:
 156                                 snprintf(buf, sizeof(buf),
 157                                                 "%s [switches] [file]",
 158                                                 invo_name);
 159                                 print_help(buf, whatnowswitches, 1);
 160                                 done(1);
 161                         case VERSIONSW:
 162                                 print_version(invo_name);
 163                                 done(1);
 164
 165                         case EDITRSW:
 166                                 if (!(ed = *argp++) || *ed == '-')
 167                                         adios(NULL, "missing argument to %s",
 168                                                         argp[-2]);
 169                                 continue;
 170
 171                         case PRMPTSW:
 172                                 if (!(myprompt = *argp++) || *myprompt == '-')
 173                                         adios(NULL, "missing argument to %s",
 174                                                         argp[-2]);
 175                                 continue;
 176
 177                         }
 178                 }
 179                 if (drft)
 180                         adios(NULL, "only one draft at a time!");
 181                 else
 182                         drft = cp;
 183         }
 184
 185         if ((!drft && !(drft = getenv("mhdraft"))) || !*drft)
 186                 drft = getcpy(m_draft(seq_cur));
 187
 188         msgnam = (cp = getenv("mhaltmsg")) && *cp ? getcpy(cp) : NULL;
 189
 190         if ((cp = getenv("mhuse")) && *cp)
 191                 use = atoi(cp);
 192
 193         if (!ed && !(ed = getenv("mheditor"))) {
 194                 ed = "";  /* Don't initially edit the draft */
 195         }
 196
 197         /* start editing the draft, unless editor is the empty string */
 198         if (*ed) {
 199                 if (editfile(&ed, NULL, drft, use, NULL, msgnam, NULL) <0) {
 200                         done(1);
 201                 }
 202         }
 203
 204         snprintf(prompt, sizeof(prompt), myprompt, invo_name);
 205         for (;;) {
 206                 if (!(argp = getans(prompt, aleqs))) {
 207                         unlink(altmsglink);
 208                         done(1);
 209                 }
 210                 switch (smatch(*argp, aleqs)) {
 211                 case DISPSW:
 212                         /* display the msg being replied to or distributed */
 213                         if (msgnam) {
 214                                 snprintf(buf, sizeof buf, "%s '%s'",
 215                                                 listproc, msgnam);
 216                                 system(buf);
 217                         } else {
 218                                 advise(NULL, "no alternate message to display");
 219                         }
 220                         break;
 221
 222                 case EDITSW:
 223                         /* Call an editor on the draft file */
 224                         if (*++argp)
 225                                 ed = *argp++;
 226                         if (editfile(&ed, argp, drft, NOUSE, NULL,
 227                                         msgnam, NULL) == NOTOK)
 228                                 done(1);
 229                         break;
 230
 231                 case LISTSW:
 232                         /* display the draft file */
 233                         snprintf(buf, sizeof buf, "%s '%s'", listproc, drft);
 234                         system(buf);
 235                         break;
 236
 237                 case QUITSW:
 238                         /* quit */
 239                         if (stat(drft, &st) != NOTOK) {
 240                                 advise(NULL, "draft left on %s", drft);
 241                         }
 242                         done(1);
 243
 244                 case DELETESW:
 245                         /* Delete draft and exit */
 246                         removefile(drft);
 247                         done(1);
 248
 249                 case SENDSW:
 250                         /* Send draft */
 251                         sendfile(++argp, drft);
 252                         break;
 253
 254                 case REFILEOPT:
 255                         /* Refile the draft */
 256                         if (refile(++argp, drft) == 0) {
 257                                 done(0);
 258                         }
 259                         break;
 260
 261                 case CDCMDSW:
 262                         /*
 263                         ** Change the working directory for attachments
 264                         **
 265                         ** Run the directory through the user's shell
 266                         ** so that we can take advantage of any syntax
 267                         ** that the user is accustomed to.  Read back
 268                         ** the absolute path.
 269                         */
 270
 271                         if (*(argp+1) == NULL) {
 272                                 sprintf(buf, "$SHELL -c \"cd;pwd\"");
 273                         } else {
 274                                 writesomecmd(buf, BUFSIZ, "cd", "pwd", argp);
 275                         }
 276                         if ((f = popen_in_dir(cwd, buf, "r"))) {
 277                                 fgets(cwd, sizeof (cwd), f);
 278
 279                                 if (strchr(cwd, '\n'))
 280                                         *strchr(cwd, '\n') = '\0';
 281
 282                                 pclose(f);
 283                         } else {
 284                                 advise("popen", "could not get directory");
 285                         }
 286
 287                         break;
 288
 289                 case PWDCMDSW:
 290                         /* Print the working directory for attachments */
 291                         printf("%s\n", cwd);
 292                         break;
 293
 294                 case LSCMDSW:
 295                         /*
 296                         ** List files in the current attachment working
 297                         ** directory
 298                         **
 299                         ** Use the user's shell so that we can take
 300                         ** advantage of any syntax that the user is
 301                         ** accustomed to.
 302                         */
 303                         writelscmd(buf, sizeof(buf), argp);
 304                         system_in_dir(cwd, buf);
 305                         break;
 306
 307                 case ALISTCMDSW:
 308                         /*
 309                         ** List attachments on current draft.
 310                         */
 311                         snprintf(buf, sizeof buf, "anno -list -comp '%s' "
 312                                         "-number all -text IGNORE '%s'",
 313                                         attach_hdr, drft);
 314                         if (system(buf) != 0) {
 315                                 advise(NULL, "Could not list attachment headers.");
 316                         }
 317                         break;
 318
 319                 case ATTACHCMDSW:
 320                         /*
 321                         ** Attach files to current draft.
 322                         */
 323
 324                         if (*(argp+1) == NULL) {
 325                                 advise(NULL, "attach command requires file argument(s).");
 326                                 break;
 327                         }
 328
 329                         /*
 330                         ** Build a command line that causes the user's
 331                         ** shell to list the file name arguments.
 332                         ** This handles and wildcard expansion, tilde
 333                         ** expansion, etc.
 334                         */
 335                         writelscmd(buf, sizeof(buf), argp);
 336
 337                         /*
 338                         ** Read back the response from the shell,
 339                         ** which contains a number of lines with one
 340                         ** file name per line.  Remove off the newline.
 341                         ** Determine whether we have an absolute or
 342                         ** relative path name.  Prepend the current
 343                         ** working directory to relative path names.
 344                         ** Add the attachment annotation to the draft.
 345                         */
 346                         if ((f = popen_in_dir(cwd, buf, "r"))) {
 347                                 char buf[BUFSIZ];
 348
 349                                 while (fgets(shell, sizeof(shell), f)) {
 350                                         *(strchr(shell, '\n')) = '\0';
 351
 352                                         if (*shell == '/')
 353                                                 sprintf(file, "%s", shell);
 354                                         else {
 355                                                 sprintf(file, "%s/%s", cwd,
 356                                                                 shell);
 357                                         }
 358                                         snprintf(buf, sizeof buf,
 359                                                         "anno -nodate -append "
 360                                                         "-comp '%s' -text '%s'"
 361                                                         " '%s'",
 362                                                         attach_hdr, file,
 363                                                         drft);
 364                                         if (system(buf) != 0) {
 365                                                 advise(NULL, "Could not add attachment header.");
 366                                         }
 367                                 }
 368
 369                                 pclose(f);
 370                         } else {
 371                                 advise("popen", "could not get file from shell");
 372                         }
 373
 374                         break;
 375
 376                 case DETACHCMDSW:
 377                         /*
 378                         ** Detach files from current draft.
 379                         **
 380                         ** Scan the arguments for a -n.  Mixed file
 381                         ** names and numbers aren't allowed, so this
 382                         ** catches a -n anywhere in the argument list.
 383                         */
 384                         for (n = 0, arguments = argp + 1;
 385                                         *arguments != NULL;
 386                                         arguments++) {
 387                                 if (strcmp(*arguments, "-n") == 0) {
 388                                                 n = 1;
 389                                                 break;
 390                                 }
 391                         }
 392
 393                         /*
 394                         ** A -n was found so interpret the arguments as
 395                         ** attachment numbers.  Decrement any remaining
 396                         ** argument number that is greater than the one
 397                         ** just processed after processing each one so
 398                         ** that the numbering stays correct.
 399                         */
 400                         if (n == 1) {
 401                                 for (arguments=argp+1; *arguments;
 402                                                 arguments++) {
 403                                         if (strcmp(*arguments, "-n") == 0)
 404                                                 continue;
 405
 406                                         if (**arguments != '\0') {
 407                                                 char buf[BUFSIZ];
 408
 409                                                 n = atoi(*arguments);
 410                                                 snprintf(buf, sizeof buf, "anno -delete -comp '%s' -number '%d' '%s'", attach_hdr, n, drft);
 411                                                 if (system(buf) != 0) {
 412                                                         advise(NULL, "Could not delete attachment header.");
 413                                                 }
 414
 415                                                 for (argp=arguments+1; *argp;
 416                                                                 argp++) {
 417                                                         if (atoi(*argp) > n) {
 418                                                                 if (atoi(*argp) == 1)
 419                                                                         *argp = "";
 420                                                                 else
 421                                                                         sprintf(*argp, "%d", atoi(*argp) - 1);
 422                                                         }
 423                                                 }
 424                                         }
 425                                 }
 426                                 break;
 427                         }
 428                         /* else */
 429
 430                         /*
 431                         ** The arguments are interpreted as file names.
 432                         ** Run them through the user's shell for wildcard
 433                         ** expansion and other goodies.  Do this from
 434                         ** the current working directory if the argument
 435                         ** is not an absolute path name (does not begin
 436                         ** with a /).
 437                         **
 438                         ** We feed all the file names to the shell at
 439                         ** once, otherwise you can't provide a file name
 440                         ** with a space in it.
 441                         */
 442                         writelscmd(buf, sizeof(buf), argp);
 443                         if ((f = popen_in_dir(cwd, buf, "r"))) {
 444                                 while (fgets(shell, sizeof (shell), f)) {
 445                                         *(strchr(shell, '\n')) = '\0';
 446                                         snprintf(buf, sizeof buf,
 447                                                         "anno -delete -comp "
 448                                                         "'%s' -text '%s' '%s'",
 449                                                         attach_hdr, shell,
 450                                                         drft);
 451                                         if (system(buf) != 0) {
 452                                                 advise(NULL, "Could not delete attachment header.");
 453                                         }
 454                                 }
 455                                 pclose(f);
 456                         } else {
 457                                 advise("popen", "could not get file from shell");
 458                         }
 459
 460                         break;
 461
 462                 default:
 463                         /* Unknown command */
 464                         advise(NULL, "say what?");
 465                         break;
 466                 }
 467         }
 468         /*NOTREACHED*/
 469 }
 470
 471
 472
 473 /*
 474 ** Build a command line of the form $SHELL -c "cd 'cwd'; cmd argp ... ;
 475 ** trailcmd".
 476 */
 477 static void
 478 writesomecmd(char *buf, int bufsz, char *cmd, char *trailcmd, char **argp)
 479 {
 480         char *cp;
 481         /*
 482         ** Note that we do not quote -- the argp from the user
 483         ** is assumed to be quoted as they desire. (We can't treat
 484         ** it as pure literal as that would prevent them using ~,
 485         ** wildcards, etc.) The buffer produced by this function
 486         ** should be given to popen_in_dir() or system_in_dir() so
 487         ** that the current working directory is set correctly.
 488         */
 489         int ln = snprintf(buf, bufsz, "$SHELL -c \"%s", cmd);
 490         /*
 491         ** NB that some snprintf() return -1 on overflow rather than the
 492         ** new C99 mandated 'number of chars that would have been written'
 493         */
 494         /*
 495         ** length checks here and inside the loop allow for the
 496         ** trailing ';', trailcmd, '"' and NUL
 497         */
 498         int trailln = strlen(trailcmd) + 3;
 499         if (ln < 0 || ln + trailln > bufsz)
 500                 adios(NULL, "arguments too long");
 501
 502         cp = buf + ln;
 503
 504         while (*++argp) {
 505                 ln = strlen(*argp);
 506                 /* +1 for leading space */
 507                 if (ln + trailln + 1 > bufsz - (cp-buf))
 508                         adios(NULL, "arguments too long");
 509                 *cp++ = ' ';
 510                 memcpy(cp, *argp, ln+1);
 511                 cp += ln;
 512         }
 513         if (*trailcmd) {
 514                 *cp++ = ';';
 515                 strcpy(cp, trailcmd);
 516                 cp += trailln - 3;
 517         }
 518         *cp++ = '"';
 519         *cp = 0;
 520 }
 521
 522 /*
 523 ** Build a command line that causes the user's shell to list the file name
 524 ** arguments.  This handles and wildcard expansion, tilde expansion, etc.
 525 */
 526 static void
 527 writelscmd(char *buf, int bufsz, char **argp)
 528 {
 529         writesomecmd(buf, bufsz, "ls", "", argp);
 530 }
 531
 532 /*
 533 ** Like system(), but run the command in directory dir.
 534 ** This assumes the program is single-threaded!
 535 */
 536 static int
 537 system_in_dir(const char *dir, const char *cmd)
 538 {
 539         char olddir[BUFSIZ];
 540         int r;
 541         if (getcwd(olddir, sizeof(olddir)) == 0)
 542                 adios("getcwd", "could not get working directory");
 543         if (chdir(dir) != 0)
 544                 adios("chdir", "could not change working directory");
 545         r = system(cmd);
 546         if (chdir(olddir) != 0)
 547                 adios("chdir", "could not change working directory");
 548         return r;
 549 }
 550
 551 /* ditto for popen() */
 552 static FILE*
 553 popen_in_dir(const char *dir, const char *cmd, const char *type)
 554 {
 555         char olddir[BUFSIZ];
 556         FILE *f;
 557         if (getcwd(olddir, sizeof(olddir)) == 0)
 558                 adios("getcwd", "could not get working directory");
 559         if (chdir(dir) != 0)
 560                 adios("chdir", "could not change working directory");
 561         f = popen(cmd, type);
 562         if (chdir(olddir) != 0)
 563                 adios("chdir", "could not change working directory");
 564         return f;
 565 }
 566
 567
 568 /*
 569 ** EDIT
 570 */
 571
 572 static char *edsave = NULL;  /* the editor we used previously */
 573
 574
 575 static int
 576 editfile(char **ed, char **arg, char *file, int use, struct msgs *mp,
 577         char *altmsg, char *cwd)
 578 {
 579         int pid, status, vecp;
 580         char altpath[BUFSIZ], linkpath[BUFSIZ];
 581         char *cp, *vec[MAXARGS];
 582         struct stat st;
 583
 584 #ifdef HAVE_LSTAT
 585         int slinked = 0;
 586 #endif /* HAVE_LSTAT */
 587
 588         if (!*ed || !**ed) {
 589                 /* We have no explicit editor. */
 590                 if (edsave) {
 591                         /* Use the previous editor ... */
 592                         *ed = edsave;
 593                         if (!(cp = mhbasename(*ed)))
 594                                 cp = *ed;
 595
 596                         /* but prefer one specified via "editor-next" */
 597                         cp = concat(cp, "-next", NULL);
 598                         if ((cp = context_find(cp)))
 599                                 *ed = cp;
 600                 } else {
 601                         /* set initial editor */
 602                         *ed = defaulteditor;
 603                 }
 604         }
 605
 606         if (altmsg) {
 607                 if (!mp || *altmsg == '/' || !cwd)
 608                         strncpy(altpath, altmsg, sizeof(altpath));
 609                 else
 610                         snprintf(altpath, sizeof(altpath), "%s/%s",
 611                                         mp->foldpath, altmsg);
 612                 if (!cwd)
 613                         strncpy(linkpath, altmsglink, sizeof(linkpath));
 614                 else
 615                         snprintf(linkpath, sizeof(linkpath), "%s/%s",
 616                                         cwd, altmsglink);
 617                 unlink(linkpath);
 618 #ifdef HAVE_LSTAT
 619                 if (link(altpath, linkpath) == NOTOK) {
 620                         symlink(altpath, linkpath);
 621                         slinked = 1;
 622                 } else {
 623                         slinked = 0;
 624                 }
 625 #else /* not HAVE_LSTAT */
 626                 link(altpath, linkpath);
 627 #endif /* not HAVE_LSTAT */
 628         }
 629
 630         context_save();  /* save the context file */
 631         fflush(stdout);
 632
 633         switch (pid = fork()) {
 634         case NOTOK:
 635                 advise("fork", "unable to");
 636                 status = NOTOK;
 637                 break;
 638
 639         case OK:
 640                 if (cwd)
 641                         chdir(cwd);
 642                 if (altmsg) {
 643                         if (mp)
 644                                 m_putenv("mhfolder", mp->foldpath);
 645                         m_putenv("editalt", altpath);
 646                 }
 647
 648                 vecp = 0;
 649                 vec[vecp++] = mhbasename(*ed);
 650                 if (arg)
 651                         while (*arg)
 652                                 vec[vecp++] = *arg++;
 653                 vec[vecp++] = file;
 654                 vec[vecp] = NULL;
 655
 656                 execvp(*ed, vec);
 657                 fprintf(stderr, "unable to exec ");
 658                 perror(*ed);
 659                 _exit(-1);
 660
 661         default:
 662                 if ((status = pidwait(pid, NOTOK))) {
 663                         if (((status & 0xff00) != 0xff00) &&
 664                                         (!edsave || (status & 0x00ff))) {
 665                                 if (!use && (status & 0xff00) && (rename(file, cp = m_backup(file)) != NOTOK)) {
 666                                         advise(NULL, "problems with edit--draft left in %s", cp);
 667                                 } else {
 668                                         advise(NULL, "problems with edit--%s preserved", file);
 669                                 }
 670                         }
 671                         status = -2;  /* maybe "edsave ? -2 : -1"? */
 672                         break;
 673                 }
 674
 675 #ifdef HAVE_LSTAT
 676                 if (altmsg && mp && !is_readonly(mp) && (slinked ?
 677                                 lstat (linkpath, &st) != NOTOK &&
 678                                 S_ISREG(st.st_mode) &&
 679                                 copyf(linkpath, altpath) == NOTOK :
 680                                 stat(linkpath, &st) != NOTOK &&
 681                                 st.st_nlink == 1 &&
 682                                 (unlink(altpath) == NOTOK ||
 683                                 link(linkpath, altpath) == NOTOK)))
 684                         advise(linkpath, "unable to update %s from", altmsg);
 685 #else /* HAVE_LSTAT */
 686                 if (altmsg && mp && !is_readonly(mp) &&
 687                                 stat(linkpath, &st) != NOTOK &&
 688                                 st.st_nlink == 1 &&
 689                                 (unlink(altpath) == NOTOK ||
 690                                 link(linkpath, altpath) == NOTOK))
 691                         advise(linkpath, "unable to update %s from", altmsg);
 692 #endif /* HAVE_LSTAT */
 693         }
 694
 695         /* remember which editor we used */
 696         edsave = getcpy(*ed);
 697
 698         *ed = NULL;
 699         if (altmsg)
 700                 unlink(linkpath);
 701
 702         return status;
 703 }
 704
 705
 706 #ifdef HAVE_LSTAT
 707 static int
 708 copyf(char *ifile, char *ofile)
 709 {
 710         int i, in, out;
 711         char buffer[BUFSIZ];
 712
 713         if ((in = open(ifile, O_RDONLY)) == NOTOK)
 714                 return NOTOK;
 715         if ((out = open(ofile, O_WRONLY | O_TRUNC)) == NOTOK) {
 716                 admonish(ofile, "unable to open and truncate");
 717                 close(in);
 718                 return NOTOK;
 719         }
 720
 721         while ((i = read(in, buffer, sizeof(buffer))) > OK)
 722                 if (write(out, buffer, i) != i) {
 723                         advise(ofile, "may have damaged");
 724                         i = NOTOK;
 725                         break;
 726                 }
 727
 728         close(in);
 729         close(out);
 730         return i;
 731 }
 732 #endif /* HAVE_LSTAT */
 733
 734
 735 /*
 736 ** SEND
 737 */
 738
 739 static int
 740 sendfile(char **arg, char *file)
 741 {
 742         pid_t child_id;
 743         int vecp;
 744         char *vec[MAXARGS];
 745
 746         context_save();  /* save the context file */
 747         fflush(stdout);
 748
 749         switch (child_id = fork()) {
 750         case NOTOK:
 751                 advise(NULL, "unable to fork, so sending directly...");
 752                 /* fall */
 753         case OK:
 754                 vecp = 0;
 755                 vec[vecp++] = invo_name;
 756                 if (arg)
 757                         while (*arg)
 758                                 vec[vecp++] = *arg++;
 759                 vec[vecp++] = file;
 760                 vec[vecp] = NULL;
 761
 762                 execvp("send", vec);
 763                 fprintf(stderr, "unable to exec ");
 764                 perror("send");
 765                 _exit(-1);
 766
 767         default:
 768                 if (pidwait(child_id, OK) == 0)
 769                         done(0);
 770                 return 1;
 771         }
 772 }
 773
 774
 775 /*
 776 ** refile msg into another folder
 777 */
 778 static int
 779 refile(char **arg, char *file)
 780 {
 781         pid_t pid;
 782         register int vecp;
 783         char *vec[MAXARGS];
 784
 785         vecp = 0;
 786         vec[vecp++] = "refile";
 787         vec[vecp++] = "-nolink";  /* override bad .mh_profile defaults */
 788         vec[vecp++] = "-file";
 789         vec[vecp++] = file;
 790
 791         while (arg && *arg) {
 792                 vec[vecp++] = *arg++;
 793         }
 794         vec[vecp] = NULL;
 795
 796         context_save();  /* save the context file */
 797         fflush(stdout);
 798
 799         switch (pid = fork()) {
 800         case -1:
 801                 advise("fork", "unable to");
 802                 return -1;
 803
 804         case 0:
 805                 execvp(*vec, vec);
 806                 fprintf(stderr, "unable to exec ");
 807                 perror(*vec);
 808                 _exit(-1);
 809
 810         default:
 811                 return (pidwait(pid, -1));
 812         }
 813 }
 814
 815
 816 /*
 817 ** Remove the draft file
 818 */
 819
 820 static int
 821 removefile(char *drft)
 822 {
 823         if (unlink(drft) == NOTOK)
 824                 adios(drft, "unable to unlink");
 825
 826         return OK;
 827 }