main.c

   1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
   2  *@ Startup and initialization.
   3  *@ This file is also used to materialize externals.
   4  *
   5  * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
   6  * Copyright (c) 2012 - 2017 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
   7  */
   8 /*
   9  * Copyright (c) 1980, 1993
  10  *      The Regents of the University of California.  All rights reserved.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  */
  36 #undef n_FILE
  37 #define n_FILE main
  38 #define n_MAIN_SOURCE
  39
  40 #include "nail.h"
  41
  42 #include <sys/ioctl.h>
  43
  44 #include <pwd.h>
  45
  46 #ifdef HAVE_NL_LANGINFO
  47 # include <langinfo.h>
  48 #endif
  49 #ifdef HAVE_SETLOCALE
  50 # include <locale.h>
  51 #endif
  52
  53 struct a_arg{
  54    struct a_arg *aa_next;
  55    char const *aa_file;
  56 };
  57
  58 /* (extern, but not with amalgamation, so define here) */
  59 VL char const n_weekday_names[7 + 1][4] = {
  60    "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", ""
  61 };
  62 VL char const n_month_names[12 + 1][4] = {
  63    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  64    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", ""
  65 };
  66 VL char const n_uagent[sizeof VAL_UAGENT] = VAL_UAGENT;
  67 VL char const n_error[sizeof n_ERROR] = N_(n_ERROR);
  68 VL char const n_unirepl[sizeof n_UNIREPL] = n_UNIREPL;
  69 VL char const n_empty[1] = "";
  70 VL char const n_0[2] = "0";
  71 VL char const n_1[2] = "1";
  72 VL char const n_m1[3] = "-1";
  73 VL ui16_t const n_class_char[1 + 0x7F] = {
  74 #define a_BC C_BLANK | C_CNTRL
  75 #define a_SC C_SPACE | C_CNTRL
  76 #define a_WC C_WHITE | C_CNTRL
  77 /* 000 nul  001 soh  002 stx  003 etx  004 eot  005 enq  006 ack  007 bel */
  78    C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL,
  79 /* 010 bs   011 ht   012 nl   013 vt   014 np   015 cr   016 so   017 si */
  80    C_CNTRL, a_BC,    a_WC,    a_SC,    a_SC,    a_SC,    C_CNTRL, C_CNTRL,
  81 /* 020 dle  021 dc1  022 dc2  023 dc3  024 dc4  025 nak  026 syn  027 etb */
  82    C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL,
  83 /* 030 can  031 em   032 sub  033 esc  034 fs   035 gs   036 rs   037 us */
  84    C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL, C_CNTRL,
  85 #undef a_WC
  86 #undef a_SC
  87 #undef a_BC
  88 /* 040 sp   041  !   042  "   043  #   044  $   045  %   046  &   047  ' */
  89    C_BLANK, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT,
  90 /* 050  (   051  )   052  *   053  +   054  ,    055  -   056  .   057  / */
  91    C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT,
  92 /* 060  0   061  1   062  2   063  3   064  4   065  5   066  6   067  7 */
  93    C_OCTAL, C_OCTAL, C_OCTAL, C_OCTAL, C_OCTAL, C_OCTAL, C_OCTAL, C_OCTAL,
  94 /* 070  8   071  9   072  :   073  ;   074  <   075  =   076  >   077  ? */
  95    C_DIGIT, C_DIGIT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT,
  96 /* 100  @   101  A   102  B   103  C   104  D   105  E   106  F   107  G */
  97    C_PUNCT, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER,
  98 /* 110  H   111  I   112  J   113  K   114  L   115  M   116  N   117  O */
  99    C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER,
 100 /* 120  P   121  Q   122  R   123  S   124  T   125  U   126  V   127  W */
 101    C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER, C_UPPER,
 102 /* 130  X   131  Y   132  Z   133  [   134  \   135  ]   136  ^   137  _ */
 103    C_UPPER, C_UPPER, C_UPPER, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT,
 104 /* 140  `   141  a   142  b   143  c   144  d   145  e   146  f   147  g */
 105    C_PUNCT, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER,
 106 /* 150  h   151  i   152  j   153  k   154  l   155  m   156  n   157  o */
 107    C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER,
 108 /* 160  p   161  q   162  r   163  s   164  t   165  u   166  v   167  w */
 109    C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER, C_LOWER,
 110 /* 170  x   171  y   172  z   173  {   174  |   175  }   176  ~   177 del */
 111    C_LOWER, C_LOWER, C_LOWER, C_PUNCT, C_PUNCT, C_PUNCT, C_PUNCT, C_CNTRL
 112 };
 113
 114 /* Our own little getopt(3) */
 115 static char const *a_main_oarg;
 116 static int a_main_oind, /*_oerr,*/ a_main_oopt;
 117
 118 /* Our own little getopt(3); note --help is special-treated as 'h' */
 119 static int a_main_getopt(int argc, char * const argv[], char const *optstring);
 120
 121 /* Perform basic startup initialization */
 122 static void a_main_startup(void);
 123
 124 /* Grow a char** */
 125 static size_t a_main_grow_cpp(char const ***cpp, size_t newsize, size_t oldcnt);
 126
 127 /* Setup some variables which we require to be valid / verified */
 128 static void a_main_setup_vars(void);
 129
 130 /* We're in an interactive session - compute what the screen size for printing
 131  * headers etc. should be; notify tty upon resize if *is_sighdl* is not 0.
 132  * We use the following algorithm for the height:
 133  * If baud rate < 1200, use  9
 134  * If baud rate = 1200, use 14
 135  * If baud rate > 1200, use 24 or ws_row
 136  * Width is either 80 or ws_col */
 137 static void a_main_setscreensize(int is_sighdl);
 138
 139 /* Ok, we are reading mail.  Decide whether we are editing a mailbox or reading
 140  * the system mailbox, and open up the right stuff */
 141 static int a_main_rcv_mode(char const *folder, char const *Larg);
 142
 143 /* Interrupt printing of the headers */
 144 static void a_main_hdrstop(int signo);
 145
 146 static int
 147 a_main_getopt(int argc, char * const argv[], char const *optstring){
 148    static char const *lastp;
 149
 150    char const *curp;
 151    int rv/*, colon*/;
 152    NYD_ENTER;
 153
 154    a_main_oarg = NULL;
 155    rv = -1;
 156
 157    /*if((colon = (optstring[0] == ':')))
 158       ++optstring;*/
 159
 160    if(lastp != NULL){
 161       curp = lastp;
 162       lastp = NULL;
 163    }else{
 164       if(a_main_oind >= argc || argv[a_main_oind] == NULL ||
 165             argv[a_main_oind][0] != '-' || argv[a_main_oind][1] == '\0')
 166          goto jleave;
 167       if(argv[a_main_oind][1] == '-' && argv[a_main_oind][2] == '\0'){
 168          /* We need this in for MTA arg detection (easier) ++a_main_oind;*/
 169          goto jleave;
 170       }
 171       curp = &argv[a_main_oind][1];
 172    }
 173
 174    for(a_main_oopt = curp[0]; optstring[0] != '\0';){
 175       if(optstring[0] != a_main_oopt){
 176          optstring += 1 + (optstring[1] == ':');
 177          continue;
 178       }
 179
 180       if(optstring[1] == ':'){
 181          if(curp[1] != '\0'){
 182             a_main_oarg = n_UNCONST(curp + 1);
 183             ++a_main_oind;
 184          }else{
 185             if((a_main_oind += 2) > argc){
 186                /*if(!colon *//*&& _oerr*//*)*/{
 187                   n_err(_("%s: option requires an argument -- %c\n"),
 188                      argv[0], (char)a_main_oopt);
 189                }
 190                rv = (/*colon ? ':' :*/ '?');
 191                goto jleave;
 192             }
 193             a_main_oarg = argv[a_main_oind - 1];
 194          }
 195       }else{
 196          if(curp[1] != '\0')
 197             lastp = curp + 1;
 198          else
 199             ++a_main_oind;
 200       }
 201       rv = a_main_oopt;
 202       goto jleave;
 203    }
 204
 205    /* Special support for --help, which is quite common */
 206    if(a_main_oopt == '-' && !strcmp(curp, "-help") &&
 207          &curp[-1] == argv[a_main_oind]){
 208       ++a_main_oind;
 209       rv = 'h';
 210       goto jleave;
 211    }
 212
 213    /* Definitive error */
 214    /*if(!colon *//*&& opterr*//*)*/
 215       n_err(_("%s: invalid option -- %c\n"), argv[0], a_main_oopt);
 216    if(curp[1] != '\0')
 217       lastp = curp + 1;
 218    else
 219       ++a_main_oind;
 220    a_main_oarg = NULL;
 221    rv = '?';
 222 jleave:
 223    NYD_LEAVE;
 224    return rv;
 225 }
 226
 227 static void
 228 a_main_startup(void){
 229    char *cp;
 230    NYD_ENTER;
 231
 232    n_stdin = stdin;
 233    n_stdout = stdout;
 234    n_stderr = stderr;
 235    dflpipe = SIG_DFL;
 236
 237    a_main_oind = /*_oerr =*/ 1;
 238
 239    if((cp = strrchr(n_progname, '/')) != NULL)
 240       n_progname = ++cp;
 241
 242 #ifdef HAVE_NYD
 243    safe_signal(SIGABRT, &_nyd_oncrash);
 244 # ifdef SIGBUS
 245    safe_signal(SIGBUS, &_nyd_oncrash);
 246 # endif
 247    safe_signal(SIGFPE, &_nyd_oncrash);
 248    safe_signal(SIGILL, &_nyd_oncrash);
 249    safe_signal(SIGSEGV, &_nyd_oncrash);
 250 #endif
 251
 252    /* Initialize our input, loop and command machinery */
 253    n_go_init();
 254
 255    /* Set up a reasonable environment */
 256
 257    /* TODO This is wrong: interactive is STDIN/STDERR for a POSIX sh(1).
 258     * TODO For now we get this wrong, all over the place, as this software
 259     * TODO has always been developed with stdout as an output channel.
 260     * TODO Start doing it right for at least explicit terminal-related things,
 261     * TODO but v15 should use ONLY this, also for terminal input! */
 262    if(isatty(STDIN_FILENO)){
 263       n_psonce |= n_PSO_TTYIN;
 264 #if defined HAVE_MLE || defined HAVE_TERMCAP
 265       n_tty_fp = fdopen(fileno(n_stdin), "w");
 266       setvbuf(n_tty_fp, NULL, _IOLBF, 0);
 267 #endif
 268    }
 269    if(isatty(STDOUT_FILENO))
 270       n_psonce |= n_PSO_TTYOUT;
 271    if((n_psonce & (n_PSO_TTYIN | n_PSO_TTYOUT)) ==
 272          (n_PSO_TTYIN | n_PSO_TTYOUT)){
 273       n_psonce |= n_PSO_INTERACTIVE;
 274       safe_signal(SIGPIPE, dflpipe = SIG_IGN);
 275    }
 276
 277    /* STDOUT is always line buffered from our point of view */
 278    setvbuf(n_stdout, NULL, _IOLBF, 0);
 279    if(n_tty_fp == NULL)
 280       n_tty_fp = n_stdout;
 281
 282    /*  --  >8  --  8<  --  */
 283
 284 #ifndef HAVE_SETLOCALE
 285    n_mb_cur_max = 1;
 286 #else
 287    setlocale(LC_ALL, n_empty);
 288    n_mb_cur_max = MB_CUR_MAX;
 289 # ifdef HAVE_NL_LANGINFO
 290    if((cp = nl_langinfo(CODESET)) != NULL)
 291       ok_vset(ttycharset, cp);
 292 # endif
 293
 294 # ifdef HAVE_C90AMEND1
 295    if(n_mb_cur_max > 1){
 296 #  ifdef HAVE_ALWAYS_UNICODE_LOCALE
 297       n_psonce |= n_PSO_UNICODE;
 298 #  else
 299       wchar_t wc;
 300       if(mbtowc(&wc, "\303\266", 2) == 2 && wc == 0xF6 &&
 301             mbtowc(&wc, "\342\202\254", 3) == 3 && wc == 0x20AC)
 302          n_psonce |= n_PSO_UNICODE;
 303       /* Reset possibly messed up state; luckily this also gives us an
 304        * indication whether the encoding has locking shift state sequences */
 305       if(mbtowc(&wc, NULL, n_mb_cur_max))
 306          n_psonce |= n_PSO_ENC_MBSTATE;
 307 #  endif
 308    }
 309 # endif
 310 #endif
 311
 312 #ifdef HAVE_ICONV
 313    iconvd = (iconv_t)-1;
 314 #endif
 315    NYD_LEAVE;
 316 }
 317
 318 static size_t
 319 a_main_grow_cpp(char const ***cpp, size_t newsize, size_t oldcnt){
 320    /* Just use auto-reclaimed storage, it will be preserved */
 321    char const **newcpp;
 322    NYD_ENTER;
 323
 324    newcpp = salloc(sizeof(char*) * newsize);
 325
 326    if(oldcnt > 0)
 327       memcpy(newcpp, *cpp, oldcnt * sizeof(char*));
 328    *cpp = newcpp;
 329    NYD_LEAVE;
 330    return newsize;
 331 }
 332
 333 static void
 334 a_main_setup_vars(void){
 335    struct passwd *pwuid;
 336    char const *cp;
 337    NYD_ENTER;
 338
 339    n_group_id = getgid();
 340    if((pwuid = getpwuid(n_user_id = getuid())) == NULL)
 341       n_panic(_("Cannot associate a name with uid %lu"), (ul_i)n_user_id);
 342
 343    /* C99 */{
 344       char const *ep;
 345       bool_t doenv;
 346
 347       if(!(doenv = (ep = ok_vlook(LOGNAME)) == NULL) &&
 348             (doenv = strcmp(pwuid->pw_name, ep)))
 349          n_err(_("Warning: $LOGNAME (%s) not identical to user (%s)!\n"),
 350             ep, pwuid->pw_name);
 351       if(doenv){
 352          n_pstate |= n_PS_ROOT;
 353          ok_vset(LOGNAME, pwuid->pw_name);
 354          n_pstate &= ~n_PS_ROOT;
 355       }
 356
 357       if((ep = ok_vlook(USER)) != NULL && strcmp(pwuid->pw_name, ep)){
 358          n_err(_("Warning: $USER (%s) not identical to user (%s)!\n"),
 359             ep, pwuid->pw_name);
 360          n_pstate |= n_PS_ROOT;
 361          ok_vset(USER, pwuid->pw_name);
 362          n_pstate &= ~n_PS_ROOT;
 363       }
 364    }
 365
 366    /* XXX myfullname = pw->pw_gecos[OPTIONAL!] -> GUT THAT; TODO pw_shell */
 367
 368    /* Ensure some variables get loaded and/or verified */
 369
 370    /* This is not automatized just as $TMPDIR is for the initial setting, since
 371     * we have the pwuid at hand and can simply use it!  See accmacvar.c! */
 372    if((cp = ok_vlook(HOME)) == NULL){
 373       cp = pwuid->pw_dir;
 374       n_pstate |= n_PS_ROOT;
 375       ok_vset(HOME, cp);
 376       n_pstate &= ~n_PS_ROOT;
 377    }
 378
 379    (void)ok_vlook(TMPDIR);
 380    (void)ok_blook(POSIXLY_CORRECT);
 381    NYD_LEAVE;
 382 }
 383
 384 static void
 385 a_main_setscreensize(int is_sighdl){/* TODO globl policy; int wraps; minvals! */
 386    struct termios tbuf;
 387 #ifdef TIOCGWINSZ
 388    struct winsize ws;
 389 #elif defined TIOCGSIZE
 390    struct ttysize ts;
 391 #endif
 392    NYD_ENTER;
 393
 394    n_scrnheight = n_realscreenheight = n_scrnwidth = 0;
 395
 396    /* (Also) POSIX: LINES and COLUMNS always override.  Adjust this
 397     * a little bit to be able to honour resizes during our lifetime and
 398     * only honour it upon first run; abuse *is_sighdl* as an indicator */
 399    if(!is_sighdl){
 400       char const *cp;
 401
 402       /* We manage those variables for our child processes, so ensure they
 403        * are up to date, always */
 404       assert(n_psonce & n_PSO_INTERACTIVE);
 405       n_pstate |= n_PS_SIGWINCH_PEND;
 406
 407       if((cp = ok_vlook(LINES)) != NULL){
 408          n_idec_ui32_cp(&n_scrnheight, cp, 0, NULL);
 409          n_realscreenheight = n_scrnheight;
 410       }
 411       if((cp = ok_vlook(COLUMNS)) != NULL)
 412          n_idec_ui32_cp(&n_scrnwidth, cp, 0, NULL);
 413
 414       if(n_scrnwidth != 0 && n_scrnheight != 0)
 415          goto jleave;
 416    }
 417
 418 #ifdef TIOCGWINSZ
 419    if(ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1)
 420       ws.ws_col = ws.ws_row = 0;
 421 #elif defined TIOCGSIZE
 422    if(ioctl(STDOUT_FILENO, TIOCGSIZE, &ws) == -1)
 423       ts.ts_lines = ts.ts_cols = 0;
 424 #endif
 425
 426    if(n_scrnheight == 0){
 427       speed_t ospeed;
 428
 429       ospeed = ((tcgetattr(fileno(n_tty_fp), &tbuf) == -1)
 430             ? B9600 : cfgetospeed(&tbuf));
 431
 432       if(ospeed < B1200)
 433          n_scrnheight = 9;
 434       else if(ospeed == B1200)
 435          n_scrnheight = 14;
 436 #ifdef TIOCGWINSZ
 437       else if(ws.ws_row != 0)
 438          n_scrnheight = ws.ws_row;
 439 #elif defined TIOCGSIZE
 440       else if(ts.ts_lines != 0)
 441          n_scrnheight = ts.ts_lines;
 442 #endif
 443       else
 444          n_scrnheight = 24;
 445
 446 #if defined TIOCGWINSZ || defined TIOCGSIZE
 447       if(0 ==
 448 # ifdef TIOCGWINSZ
 449             (n_realscreenheight = ws.ws_row)
 450 # else
 451             (n_realscreenheight = ts.ts_lines)
 452 # endif
 453       )
 454          n_realscreenheight = 24;
 455 #endif
 456    }
 457
 458    if(n_scrnwidth == 0 && 0 ==
 459 #ifdef TIOCGWINSZ
 460          (n_scrnwidth = ws.ws_col)
 461 #elif defined TIOCGSIZE
 462          (n_scrnwidth = ts.ts_cols)
 463 #endif
 464    )
 465       n_scrnwidth = 80;
 466
 467 jleave:
 468 #ifdef SIGWINCH
 469    if(is_sighdl){
 470       assert(n_psonce & n_PSO_INTERACTIVE);
 471       n_pstate |= n_PS_SIGWINCH_PEND; /* XXX Not atomic */
 472       n_tty_signal(SIGWINCH);
 473    }
 474 #endif
 475    NYD_LEAVE;
 476 }
 477
 478 static sigjmp_buf a_main__hdrjmp; /* XXX */
 479
 480 static int
 481 a_main_rcv_mode(char const *folder, char const *Larg){
 482    int i;
 483    sighandler_type prevint;
 484    NYD_ENTER;
 485
 486    if(folder == NULL)
 487       folder = "%";
 488
 489    i = (n_poption & n_PO_QUICKRUN_MASK) ? FEDIT_RDONLY : FEDIT_NONE;
 490    i = setfile(folder, i);
 491    if(i < 0){
 492       n_exit_status = n_EXIT_ERR; /* error already reported */
 493       goto jquit;
 494    }
 495    if(n_poption & n_PO_QUICKRUN_MASK){
 496       n_exit_status = i;
 497       if(i == n_EXIT_OK && (!(n_poption & n_PO_EXISTONLY) ||
 498             (n_poption & n_PO_HEADERLIST)))
 499          print_header_summary(Larg);
 500       goto jquit;
 501    }
 502    temporary_folder_hook_check(FAL0);
 503
 504    if(i > 0 && !ok_blook(emptystart)){
 505       n_exit_status = n_EXIT_ERR;
 506       goto jleave;
 507    }
 508
 509    if(sigsetjmp(a_main__hdrjmp, 1) == 0){
 510       if((prevint = safe_signal(SIGINT, SIG_IGN)) != SIG_IGN)
 511          safe_signal(SIGINT, &a_main_hdrstop);
 512       if(ok_blook(header)){
 513          if(!ok_blook(quiet))
 514             fprintf(n_stdout, _("%s version %s.  Type `?' for help\n"),
 515                (ok_blook(bsdcompat) ? "Mail" : n_uagent), ok_vlook(version));
 516          announce(1);
 517          fflush(n_stdout);
 518       }
 519       safe_signal(SIGINT, prevint);
 520    }
 521
 522    /* Enter the command loop */
 523    if(n_psonce & n_PSO_INTERACTIVE)
 524       n_tty_init();
 525    n_go_main_loop();
 526    if(!(n_psonce & n_PSO_XIT)){
 527       if(n_psonce & n_PSO_INTERACTIVE)
 528          n_tty_destroy();
 529
 530       if(mb.mb_type == MB_FILE || mb.mb_type == MB_MAILDIR){
 531          safe_signal(SIGHUP, SIG_IGN);
 532          safe_signal(SIGINT, SIG_IGN);
 533          safe_signal(SIGQUIT, SIG_IGN);
 534       }
 535 jquit:
 536       save_mbox_for_possible_quitstuff();
 537       quit(FAL0);
 538    }
 539 jleave:
 540    NYD_LEAVE;
 541    return n_exit_status;
 542 }
 543
 544 static void
 545 a_main_hdrstop(int signo){
 546    NYD_X; /* Signal handler */
 547    n_UNUSED(signo);
 548
 549    fflush(n_stdout);
 550    n_err_sighdl(_("\nInterrupt\n"));
 551    siglongjmp(a_main__hdrjmp, 1);
 552 }
 553
 554 int
 555 main(int argc, char *argv[]){
 556    /* Keep in SYNC: ./nail.1:"SYNOPSIS, main() */
 557    static char const
 558       optstr[] = "A:a:Bb:c:dEeFfHhiL:M:m:NnO:q:Rr:S:s:tu:VvX:::~#.",
 559       usagestr[] = N_(
 560          "Synopsis:\n"
 561          "  %s -h\n"
 562
 563          "  %s [-BdEFintv~] [-: spec] [-A account]\n"
 564          "\t [-a attachment] [-b bcc-addr] [-c cc-addr]\n"
 565          "\t [-M type | -m file | -q file | -t]\n"
 566          "\t [-r from-addr] [-S var[=value]..]\n"
 567          "\t [-s subject] [-X cmd] [-.] to-addr.. [-- mta-option..]\n"
 568
 569          "  %s [-BdEeHiNnRv~] [-: spec] [-A account]\n"
 570          "\t [-L spec-list] [-r from-addr] [-S var[=value]..]\n"
 571          "\t [-u user] [-X cmd] [-- mta-option..]\n"
 572
 573          "  %s [-BdEeHiNnRv~#] [-: spec] [-A account] -f\n"
 574          "\t [-L spec-list] [-r from-addr] [-S var[=value]..]\n"
 575          "\t [-X cmd] [file] [-- mta-option..]\n"
 576       );
 577 #define _USAGE_ARGS , n_progname, n_progname, n_progname, n_progname
 578
 579    int i;
 580    char *cp;
 581    enum{
 582       a_RF_NONE = 0,
 583       a_RF_SET = 1<<0,
 584       a_RF_SYSTEM = 1<<1,
 585       a_RF_USER = 1<<2,
 586       a_RF_ALL = a_RF_SYSTEM | a_RF_USER
 587    } resfiles;
 588    size_t oargs_size, oargs_cnt, Xargs_size, Xargs_cnt, smopts_size;
 589    char const *Aarg, *emsg, *folder, *Larg, *okey, **oargs, *qf,
 590       *subject, *uarg, **Xargs;
 591    struct attachment *attach;
 592    struct name *to, *cc, *bcc;
 593    struct a_arg *a_head, *a_curr;
 594    NYD_ENTER;
 595
 596    a_head = NULL;
 597    n_UNINIT(a_curr, NULL);
 598    to = cc = bcc = NULL;
 599    attach = NULL;
 600    Aarg = emsg = folder = Larg = okey = qf = subject = uarg = NULL;
 601    oargs = Xargs = NULL;
 602    oargs_size = oargs_cnt = Xargs_size = Xargs_cnt = smopts_size = 0;
 603    resfiles = a_RF_ALL;
 604
 605    /*
 606     * Start our lengthy setup, finalize by setting n_PSO_STARTED
 607     */
 608
 609    n_progname = argv[0];
 610    a_main_startup();
 611
 612    /* Command line parsing
 613     * Variable settings need to be done twice, since the user surely wants the
 614     * setting to take effect immediately, but also doesn't want it to be
 615     * overwritten from within resource files */
 616    while((i = a_main_getopt(argc, argv, optstr)) >= 0){
 617       switch(i){
 618       case 'A':
 619          /* Execute an account command later on */
 620          Aarg = a_main_oarg;
 621          break;
 622       case 'a':{
 623          struct a_arg *nap;
 624
 625          n_psonce |= n_PSO_SENDMODE;
 626          nap = salloc(sizeof(struct a_arg));
 627          if(a_head == NULL)
 628             a_head = nap;
 629          else
 630             a_curr->aa_next = nap;
 631          nap->aa_next = NULL;
 632          nap->aa_file = a_main_oarg;
 633          a_curr = nap;
 634       }  break;
 635       case 'B':
 636          n_OBSOLETE(_("-B is obsolete, please use -# as necessary"));
 637          break;
 638       case 'b':
 639          /* Get Blind Carbon Copy Recipient list */
 640          n_psonce |= n_PSO_SENDMODE;
 641          bcc = cat(bcc, lextract(a_main_oarg, GBCC | GFULL));
 642          break;
 643       case 'c':
 644          /* Get Carbon Copy Recipient list */
 645          n_psonce |= n_PSO_SENDMODE;
 646          cc = cat(cc, lextract(a_main_oarg, GCC | GFULL));
 647          break;
 648       case 'd':
 649          ok_bset(debug);
 650          okey = "debug";
 651          goto joarg;
 652       case 'E':
 653          n_OBSOLETE(_("-E will be removed, please use \"-Sskipemptybody\""));
 654          ok_bset(skipemptybody);
 655          okey = "skipemptybody";
 656          goto joarg;
 657       case 'e':
 658          n_poption |= n_PO_EXISTONLY;
 659          break;
 660       case 'F':
 661          n_poption |= n_PO_F_FLAG;
 662          n_psonce |= n_PSO_SENDMODE;
 663          break;
 664       case 'f':
 665          /* User is specifying file to "edit" with Mail, as opposed to reading
 666           * system mailbox.  If no argument is given, we read his mbox file.
 667           * Check for remaining arguments later */
 668          folder = "&";
 669          break;
 670       case 'H':
 671          n_poption |= n_PO_HEADERSONLY;
 672          break;
 673       case 'h':
 674          n_err(V_(usagestr) _USAGE_ARGS);
 675          goto j_leave;
 676       case 'i':
 677          /* Ignore interrupts */
 678          ok_bset(ignore);
 679          okey = "ignore";
 680          goto joarg;
 681       case 'L':
 682          Larg = a_main_oarg;
 683          n_poption |= n_PO_HEADERLIST;
 684          if(*Larg == '"' || *Larg == '\''){ /* TODO list.c:listspec_check() */
 685             size_t j;
 686
 687             j = strlen(++Larg);
 688             if(j > 0){
 689                cp = savestrbuf(Larg, --j);
 690                Larg = cp;
 691             }
 692          }
 693          break;
 694       case 'M':
 695          if(qf != NULL && (!(n_poption & n_PO_Mm_FLAG) || qf != (char*)-1))
 696             goto jeMmq;
 697          n_poption_arg_Mm = a_main_oarg;
 698          qf = (char*)-1;
 699          if(0){
 700             /* FALLTHRU*/
 701       case 'm':
 702             if(qf != NULL && (!(n_poption & n_PO_Mm_FLAG) || qf == (char*)-1))
 703                goto jeMmq;
 704             qf = a_main_oarg;
 705          }
 706          n_poption |= n_PO_Mm_FLAG;
 707          n_psonce |= n_PSO_SENDMODE;
 708          break;
 709       case 'N':
 710          /* Avoid initial header printing */
 711          ok_bclear(header);
 712          okey = "noheader";
 713          goto joarg;
 714       case 'n':
 715          /* Don't source "unspecified system start-up file" */
 716          if(resfiles & a_RF_SET){
 717             emsg = N_("-n cannot be used in conjunction with -:");
 718             goto jusage;
 719          }
 720          resfiles = a_RF_USER;
 721          break;
 722       case 'O':
 723          /* Additional options to pass-through to MTA TODO v15-compat legacy */
 724          if(n_smopts_cnt == smopts_size)
 725             smopts_size = a_main_grow_cpp(&n_smopts, smopts_size + 8,
 726                   n_smopts_cnt);
 727          n_smopts[n_smopts_cnt++] = a_main_oarg;
 728          break;
 729       case 'q':
 730          if(qf != NULL && (n_poption & n_PO_Mm_FLAG)){
 731 jeMmq:
 732             emsg = N_("Only one of -M, -m or -q may be given");
 733             goto jusage;
 734          }
 735          /* Quote file TODO drop? -Q with real quote?? what ? */
 736          n_psonce |= n_PSO_SENDMODE;
 737          /* Allow for now, we have to special check validity of -q- later on! */
 738          qf = (a_main_oarg[0] == '-' && a_main_oarg[1] == '\0')
 739                ? (char*)-1 : a_main_oarg;
 740          break;
 741       case 'R':
 742          /* Open folders read-only */
 743          n_poption |= n_PO_R_FLAG;
 744          break;
 745       case 'r':
 746          /* Set From address. */
 747          n_poption |= n_PO_r_FLAG;
 748          if(a_main_oarg[0] != '\0'){
 749             struct name *fa;
 750
 751             fa = nalloc(a_main_oarg, GSKIN | GFULL | GFULLEXTRA);
 752             if(is_addr_invalid(fa, EACM_STRICT | EACM_NOLOG)){
 753                emsg = N_("Invalid address argument with -r");
 754                goto jusage;
 755             }
 756             n_poption_arg_r = fa;
 757             /* TODO -r options is set in n_smopts, but may
 758              * TODO be overwritten by setting from= in
 759              * TODO an interactive session!
 760              * TODO Maybe disable setting of from?
 761              * TODO Warn user?  Update manual!! */
 762             okey = savecat("from=", fa->n_fullname);
 763             goto joarg;
 764          }
 765          break;
 766       case 'S':
 767          /* Set variable (TODO twice [only if successful]) */
 768          {  char const *a[2];
 769             bool_t b;
 770
 771             okey = a[0] = a_main_oarg;
 772             a[1] = NULL;
 773             n_pstate |= n_PS_ROBOT;
 774             b = (c_set(a) == 0);
 775             n_pstate &= ~n_PS_ROBOT;
 776             if(!b)
 777                break;
 778          }
 779 joarg:
 780          if(oargs_cnt == oargs_size)
 781             oargs_size = a_main_grow_cpp(&oargs, oargs_size + 8, oargs_cnt);
 782          oargs[oargs_cnt++] = okey;
 783          break;
 784       case 's':
 785          /* Subject:; take care for Debian #419840 and strip any \r and \n */
 786          if(n_anyof_cp("\n\r", subject = a_main_oarg)){
 787             n_err(_("-s: normalizing away invalid ASCII NL / CR bytes\n"));
 788             for(subject = cp = savestr(a_main_oarg); *cp != '\0'; ++cp)
 789                if(*cp == '\n' || *cp == '\r')
 790                   *cp = ' ';
 791          }
 792          n_psonce |= n_PSO_SENDMODE;
 793          break;
 794       case 't':
 795          /* Read defined set of headers from mail to be sent */
 796          n_poption |= n_PO_t_FLAG;
 797          n_psonce |= n_PSO_SENDMODE;
 798          break;
 799       case 'u':
 800          uarg = savecat("%", a_main_oarg);
 801          break;
 802       case 'V':
 803          fprintf(n_stdout, _("%s version %s\n"), n_uagent, ok_vlook(version));
 804          n_exit_status = n_EXIT_OK;
 805          goto j_leave;
 806       case 'v':
 807          /* Be verbose */
 808          ok_bset(verbose);
 809          okey = "verbose";
 810          goto joarg;
 811       case 'X':
 812          /* Add to list of commands to exec before entering normal operation */
 813          if(Xargs_cnt == Xargs_size)
 814             Xargs_size = a_main_grow_cpp(&Xargs, Xargs_size + 8, Xargs_cnt);
 815          Xargs[Xargs_cnt++] = a_main_oarg;
 816          break;
 817       case ':':
 818          /* Control which resource files shall be loaded */
 819          if(!(resfiles & (a_RF_SET | a_RF_SYSTEM))){
 820             emsg = N_("-n cannot be used in conjunction with -:");
 821             goto jusage;
 822          }
 823          resfiles = a_RF_SET;
 824          while((i = *a_main_oarg++) != '\0')
 825             switch(i){
 826             case 'S': case 's': resfiles |= a_RF_SYSTEM; break;
 827             case 'U': case 'u': resfiles |= a_RF_USER; break;
 828             case ':': case '/': resfiles &= ~a_RF_ALL; break;
 829             default:
 830                emsg = N_("Invalid argument of -:");
 831                goto jusage;
 832             }
 833          break;
 834       case '~':
 835          /* Enable command escapes even in non-interactive mode */
 836          n_poption |= n_PO_TILDE_FLAG;
 837          break;
 838       case '#':
 839          /* Work in batch mode, even if non-interactive */
 840          if(!(n_psonce & n_PSO_INTERACTIVE))
 841             setvbuf(n_stdin, NULL, _IOLBF, 0);
 842          n_poption |= n_PO_TILDE_FLAG | n_PO_BATCH_FLAG;
 843          folder = "/dev/null";
 844          if(oargs_cnt + 10 >= oargs_size)
 845             oargs_size = a_main_grow_cpp(&oargs, oargs_size + 11, oargs_cnt);
 846
 847          ok_vset(MAIL, folder), oargs[oargs_cnt++] = "MAIL=/dev/null";
 848          ok_vset(MBOX, folder), oargs[oargs_cnt++] = "MBOX=/dev/null";
 849          ok_bset(emptystart), oargs[oargs_cnt++] = "emptystart";
 850          ok_bclear(errexit), oargs[oargs_cnt++] = "noerrexit";
 851          ok_bclear(header), oargs[oargs_cnt++] = "noheader";
 852
 853          ok_vset(inbox, folder), oargs[oargs_cnt++] = "inbox=/dev/null";
 854          ok_bclear(posix), oargs[oargs_cnt++] = "noposix";
 855          ok_bset(quiet), oargs[oargs_cnt++] = "quiet";
 856          ok_bset(sendwait), oargs[oargs_cnt++] = "sendwait";
 857          ok_bset(typescript_mode), oargs[oargs_cnt++] = "typescript-mode";
 858
 859          break;
 860       case '.':
 861          n_psonce |= n_PSO_SENDMODE;
 862          goto jgetopt_done;
 863       case '?':
 864 jusage:
 865          if(emsg != NULL)
 866             n_err("%s\n", V_(emsg));
 867          n_err(V_(usagestr) _USAGE_ARGS);
 868 #undef _USAGE_ARGS
 869          n_exit_status = n_EXIT_USE;
 870          goto j_leave;
 871       }
 872    }
 873 jgetopt_done:
 874    ;
 875
 876    /* The normal arguments may be followed by MTA arguments after a "--";
 877     * however, -f may take off an argument, too, and before that.
 878     * Since MTA arguments after "--" require *expandargv*, delay parsing off
 879     * those options until after the resource files are loaded... */
 880    if((cp = argv[i = a_main_oind]) == NULL)
 881       ;
 882    else if(cp[0] == '-' && cp[1] == '-' && cp[2] == '\0')
 883       ++i;
 884    /* n_PO_BATCH_FLAG sets to /dev/null, but -f can still be used and sets & */
 885    else if(folder != NULL && /*folder[0] == '&' &&*/ folder[1] == '\0'){
 886       folder = cp;
 887       if((cp = argv[++i]) != NULL){
 888          if(cp[0] != '-' || cp[1] != '-' || cp[2] != '\0'){
 889             emsg = N_("More than one file given with -f");
 890             goto jusage;
 891          }
 892          ++i;
 893       }
 894    }else{
 895       n_psonce |= n_PSO_SENDMODE;
 896       for(;;){
 897          to = cat(to, lextract(cp, GTO | GFULL));
 898          if((cp = argv[++i]) == NULL)
 899             break;
 900          if(cp[0] == '-' && cp[1] == '-' && cp[2] == '\0'){
 901             ++i;
 902             break;
 903          }
 904       }
 905    }
 906    a_main_oind = i;
 907
 908    /* ...BUT, since we use salloc() for the MTA n_smopts storage we need to
 909     * allocate the necessary space for them before we fixate that storage! */
 910    while(argv[i] != NULL)
 911       ++i;
 912    if(n_smopts_cnt + i > smopts_size)
 913       DBG(smopts_size =)
 914       a_main_grow_cpp(&n_smopts, n_smopts_cnt + i + 1, n_smopts_cnt);
 915
 916    /* Check for inconsistent arguments, fix some temporaries */
 917    if(n_psonce & n_PSO_SENDMODE){
 918       /* XXX This is only because BATCH_FLAG sets *folder*=/dev/null
 919        * XXX in order to function.  Ideally that would not be needed */
 920       if(folder != NULL && !(n_poption & n_PO_BATCH_FLAG)){
 921          emsg = N_("Cannot give -f and people to send to.");
 922          goto jusage;
 923       }
 924       if(uarg != NULL){
 925          emsg = N_("The -u option cannot be used in send mode");
 926          goto jusage;
 927       }
 928       if(!(n_poption & n_PO_t_FLAG) && to == NULL){
 929          emsg = N_("Send options without primary recipient specified.");
 930          goto jusage;
 931       }
 932       if((n_poption & n_PO_t_FLAG) && qf != NULL){
 933          emsg = N_("The -M, -m, -q and -t options are mutual exclusive.");
 934          goto jusage;
 935       }
 936       if(n_poption & (n_PO_EXISTONLY | n_PO_HEADERSONLY | n_PO_HEADERLIST)){
 937          emsg = N_("The -e, -H and -L options cannot be used in send mode.");
 938          goto jusage;
 939       }
 940       if(n_poption & n_PO_R_FLAG){
 941          emsg = N_("The -R option is meaningless in send mode.");
 942          goto jusage;
 943       }
 944
 945       if(n_psonce & n_PSO_INTERACTIVE){
 946          if(qf == (char*)-1){
 947             if(!(n_poption & n_PO_Mm_FLAG))
 948                emsg = N_("-q can't use standard input when interactive.\n");
 949             goto jusage;
 950          }
 951       }
 952    }else{
 953       if(uarg != NULL && folder != NULL){
 954          emsg = N_("The options -u and -f (and -#) are mutually exclusive");
 955          goto jusage;
 956       }
 957       if((n_poption & (n_PO_EXISTONLY | n_PO_HEADERSONLY)) ==
 958             (n_PO_EXISTONLY | n_PO_HEADERSONLY)){
 959          emsg = N_("The options -e and -H are mutual exclusive");
 960          goto jusage;
 961       }
 962       if((n_poption & (n_PO_HEADERSONLY | n_PO_HEADERLIST) /* TODO OBSOLETE */
 963             ) == (n_PO_HEADERSONLY | n_PO_HEADERLIST))
 964          n_OBSOLETE(_("please use \"-e -L xy\" instead of \"-H -L xy\""));
 965
 966       if(uarg != NULL)
 967          folder = uarg;
 968    }
 969
 970    /*
 971     * Likely to go, perform more setup
 972     */
 973
 974    a_main_setup_vars();
 975
 976    if(n_psonce & n_PSO_INTERACTIVE){
 977       a_main_setscreensize(0);
 978 #ifdef SIGWINCH
 979 # ifndef TTY_WANTS_SIGWINCH
 980       if(safe_signal(SIGWINCH, SIG_IGN) != SIG_IGN)
 981 # endif
 982          safe_signal(SIGWINCH, &a_main_setscreensize);
 983 #endif
 984    }else
 985       n_scrnheight = n_realscreenheight = 24, n_scrnwidth = 80;
 986
 987    /* Fixate the current memory pool snapshot.
 988     * Memory is auto-reclaimed from now on */
 989    n_memory_pool_fixate();
 990
 991    /* load() any resource files */
 992    if(resfiles & a_RF_ALL){
 993       /* *expand() returns a savestr(), but load only uses the file name for
 994        * fopen(), so it's safe to do this */
 995       if(resfiles & a_RF_SYSTEM){
 996          bool_t nload;
 997
 998          if((nload = ok_blook(NAIL_NO_SYSTEM_RC)))
 999             n_OBSOLETE(_("Please use $MAILX_NO_SYSTEM_RC instead of "
1000                "$NAIL_NO_SYSTEM_RC"));
1001          if(!nload && !ok_blook(MAILX_NO_SYSTEM_RC)){
1002             n_go_load(VAL_SYSCONFDIR "/" VAL_SYSCONFRC);
1003             if(n_psonce & n_PSO_EXIT_MASK)
1004                goto j_leave;
1005          }
1006       }
1007
1008       if(resfiles & a_RF_USER){
1009          n_go_load(fexpand(ok_vlook(MAILRC), FEXP_LOCAL | FEXP_NOPROTO));
1010          if(n_psonce & n_PSO_EXIT_MASK)
1011             goto j_leave;
1012       }
1013
1014       if((cp = ok_vlook(NAIL_EXTRA_RC)) != NULL)
1015          n_OBSOLETE(_("Please use *mailx-extra-rc*, not *NAIL_EXTRA_RC*"));
1016       if(cp != NULL || (cp = ok_vlook(mailx_extra_rc)) != NULL){
1017          n_go_load(fexpand(cp, FEXP_LOCAL | FEXP_NOPROTO));
1018          if(n_psonce & n_PSO_EXIT_MASK)
1019             goto j_leave;
1020       }
1021    }
1022
1023    /* Ensure the -S and other command line options take precedence over
1024     * anything that may have been placed in resource files.
1025     * Our "ternary binary" option *verbose* needs special treament */
1026    if((n_poption & (n_PO_VERB | n_PO_VERBVERB)) == n_PO_VERB)
1027       n_poption &= ~n_PO_VERB;
1028    /* ..and be silent when unsetting an undefined variable */
1029    n_pstate |= n_PS_ROBOT;
1030    for(i = 0; UICMP(z, i, <, oargs_cnt); ++i){
1031       char const *a[2];
1032
1033       a[0] = oargs[i];
1034       a[1] = NULL;
1035       c_set(a);
1036    }
1037    n_pstate &= ~n_PS_ROBOT;
1038
1039    /* Cause possible umask(2), now that any setting is established, and before
1040     * we change accounts, evaluate commands etc. */
1041    (void)ok_vlook(umask);
1042
1043    /* Additional options to pass-through to MTA, and allowed to do so? */
1044    if((cp = ok_vlook(expandargv)) != NULL){
1045       bool_t isfail, isrestrict;
1046
1047       isfail = !asccasecmp(cp, "fail");
1048       isrestrict = (!isfail && !asccasecmp(cp, "restrict"));
1049
1050       if((n_poption & n_PO_D_V) && !isfail && !isrestrict && *cp != '\0')
1051          n_err(_("Unknown *expandargv* value: %s\n"), cp);
1052
1053       if((cp = argv[i = a_main_oind]) != NULL){
1054          if(isfail || (isrestrict && (!(n_poption & n_PO_TILDE_FLAG) ||
1055                   !(n_psonce & n_PSO_INTERACTIVE)))){
1056             n_err(_("*expandargv* doesn't allow MTA arguments; consider "
1057                "using *sendmail-arguments*\n"));
1058             n_exit_status = n_EXIT_USE | n_EXIT_SEND_ERROR;
1059             goto jleave;
1060          }
1061          do{
1062             assert(n_smopts_cnt + 1 <= smopts_size);
1063             n_smopts[n_smopts_cnt++] = cp;
1064          }while((cp = argv[++i]) != NULL);
1065       }
1066    }
1067
1068    /* We had to wait until the resource files are loaded and any command line
1069     * setting has been restored, but get the termcap up and going before we
1070     * switch account or running commands */
1071 #ifdef n_HAVE_TCAP
1072    if((n_psonce & n_PSO_INTERACTIVE) && !(n_poption & n_PO_QUICKRUN_MASK))
1073       n_termcap_init();
1074 #endif
1075
1076    /* Now we can set the account */
1077    if(Aarg != NULL){
1078       char const *a[2];
1079
1080       a[0] = Aarg;
1081       a[1] = NULL;
1082       c_account(a);
1083    }
1084
1085    /* "load()" commands given on command line */
1086    if(Xargs_cnt > 0){
1087       n_go_Xargs(Xargs, Xargs_cnt);
1088       if(n_psonce & n_PSO_EXIT_MASK)
1089          goto jleave;
1090    }
1091
1092    /* Final tests */
1093    if(n_poption & n_PO_Mm_FLAG){
1094       if(qf == (char*)-1){
1095          if(!mime_type_check_mtname(n_poption_arg_Mm)){
1096             n_err(_("Could not find `mimetype' for -M argument: %s\n"),
1097                n_poption_arg_Mm);
1098             n_exit_status = n_EXIT_ERR;
1099             goto jleave;
1100          }
1101       }else if((n_poption_arg_Mm = mime_type_classify_filename(qf)) == NULL){
1102          n_err(_("Could not `mimetype'-classify -m argument: %s\n"),
1103             n_shexp_quote_cp(qf, FAL0));
1104          n_exit_status = n_EXIT_ERR;
1105          goto jleave;
1106       }else if(!asccasecmp(n_poption_arg_Mm, "text/plain")) /* TODO no: magic */
1107          n_poption_arg_Mm = NULL;
1108    }
1109
1110    /*
1111     * We're finally completely setup and ready to go
1112     */
1113    n_psonce |= n_PSO_STARTED;
1114
1115    if(!(n_psonce & n_PSO_SENDMODE)){
1116       n_exit_status = a_main_rcv_mode(folder, Larg);
1117       goto jleave;
1118    }
1119
1120    /* Now that full mailx(1)-style file expansion is possible handle the
1121     * attachments which we had delayed due to this.
1122     * This may use savestr(), but since we won't enter the command loop we
1123     * don't need to care about that */
1124    for(; a_head != NULL; a_head = a_head->aa_next){
1125       enum n_attach_error aerr;
1126
1127       attach = n_attachment_append(attach, a_head->aa_file, &aerr, NULL);
1128       if(aerr != n_ATTACH_ERR_NONE){
1129          n_exit_status = n_EXIT_ERR;
1130          goto jleave;
1131       }
1132    }
1133
1134    if(n_psonce & n_PSO_INTERACTIVE)
1135       n_tty_init();
1136    mail(to, cc, bcc, subject, attach, qf, ((n_poption & n_PO_F_FLAG) != 0));
1137    if((n_psonce & (n_PSO_XIT | n_PSO_INTERACTIVE)) == n_PSO_INTERACTIVE)
1138       n_tty_destroy();
1139
1140 jleave:
1141   /* Be aware of identical code for `exit' command! */
1142 #ifdef n_HAVE_TCAP
1143    if((n_psonce & n_PSO_INTERACTIVE) && !(n_poption & n_PO_QUICKRUN_MASK))
1144       n_termcap_destroy();
1145 #endif
1146
1147 j_leave:
1148 #ifdef HAVE_MEMORY_DEBUG
1149    n_memory_pool_pop(NULL);
1150 #endif
1151 #if (defined HAVE_DEBUG || defined HAVE_DEVEL)
1152    n_memory_reset();
1153 #endif
1154    NYD_LEAVE;
1155    return n_exit_status;
1156 }
1157
1158 /* Source the others in that case! */
1159 #ifdef HAVE_AMALGAMATION
1160 # include "config.h"
1161 #endif
1162
1163 /* s-it-mode */