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    a_main_oind = /*_oerr =*/ 1;
 237
 238    if((cp = strrchr(n_progname, '/')) != NULL)
 239       n_progname = ++cp;
 240
 241    /* Set up a reasonable environment */
 242
 243 #ifdef HAVE_NYD
 244    safe_signal(SIGABRT, &_nyd_oncrash);
 245 # ifdef SIGBUS
 246    safe_signal(SIGBUS, &_nyd_oncrash);
 247 # endif
 248    safe_signal(SIGFPE, &_nyd_oncrash);
 249    safe_signal(SIGILL, &_nyd_oncrash);
 250    safe_signal(SIGSEGV, &_nyd_oncrash);
 251 #endif
 252    command_manager_start();
 253
 254    /* TODO This is wrong: interactive is STDIN/STDERR for a POSIX sh(1).
 255     * TODO For now we get this wrong, all over the place, as this software
 256     * TODO has always been developed with stdout as an output channel.
 257     * TODO Start doing it right for at least explicit terminal-related things,
 258     * TODO but v15 should use ONLY this, also for terminal input! */
 259    if(isatty(STDIN_FILENO)){
 260       n_psonce |= n_PSO_TTYIN;
 261 #if defined HAVE_MLE || defined HAVE_TERMCAP
 262       n_tty_fp = fdopen(fileno(n_stdin), "w");
 263       setvbuf(n_tty_fp, NULL, _IOLBF, 0);
 264 #endif
 265    }
 266    if(isatty(STDOUT_FILENO))
 267       n_psonce |= n_PSO_TTYOUT;
 268    if((n_psonce & (n_PSO_TTYIN | n_PSO_TTYOUT)) ==
 269          (n_PSO_TTYIN | n_PSO_TTYOUT)){
 270       n_psonce |= n_PSO_INTERACTIVE;
 271       safe_signal(SIGPIPE, dflpipe = SIG_IGN);
 272    }
 273
 274    /* STDOUT is always line buffered from our point of view */
 275    setvbuf(n_stdout, NULL, _IOLBF, 0);
 276    if(n_tty_fp == NULL)
 277       n_tty_fp = n_stdout;
 278
 279    /*  --  >8  --  8<  --  */
 280
 281 #ifndef HAVE_SETLOCALE
 282    n_mb_cur_max = 1;
 283 #else
 284    setlocale(LC_ALL, n_empty);
 285    n_mb_cur_max = MB_CUR_MAX;
 286 # ifdef HAVE_NL_LANGINFO
 287    if((cp = nl_langinfo(CODESET)) != NULL)
 288       ok_vset(ttycharset, cp);
 289 # endif
 290
 291 # ifdef HAVE_C90AMEND1
 292    if(n_mb_cur_max > 1){
 293 #  ifdef HAVE_ALWAYS_UNICODE_LOCALE
 294       n_psonce |= n_PSO_UNICODE;
 295 #  else
 296       wchar_t wc;
 297       if(mbtowc(&wc, "\303\266", 2) == 2 && wc == 0xF6 &&
 298             mbtowc(&wc, "\342\202\254", 3) == 3 && wc == 0x20AC)
 299          n_psonce |= n_PSO_UNICODE;
 300       /* Reset possibly messed up state; luckily this also gives us an
 301        * indication whether the encoding has locking shift state sequences */
 302       if(mbtowc(&wc, NULL, n_mb_cur_max))
 303          n_psonce |= n_PSO_ENC_MBSTATE;
 304 #  endif
 305    }
 306 # endif
 307 #endif
 308
 309 #ifdef HAVE_ICONV
 310    iconvd = (iconv_t)-1;
 311 #endif
 312    NYD_LEAVE;
 313 }
 314
 315 static size_t
 316 a_main_grow_cpp(char const ***cpp, size_t newsize, size_t oldcnt){
 317    /* Just use auto-reclaimed storage, it will be preserved */
 318    char const **newcpp;
 319    NYD_ENTER;
 320
 321    newcpp = salloc(sizeof(char*) * newsize);
 322
 323    if(oldcnt > 0)
 324       memcpy(newcpp, *cpp, oldcnt * sizeof(char*));
 325    *cpp = newcpp;
 326    NYD_LEAVE;
 327    return newsize;
 328 }
 329
 330 static void
 331 a_main_setup_vars(void){
 332    struct passwd *pwuid;
 333    char const *cp;
 334    NYD_ENTER;
 335
 336    n_group_id = getgid();
 337    if((pwuid = getpwuid(n_user_id = getuid())) == NULL)
 338       n_panic(_("Cannot associate a name with uid %lu"), (ul_i)n_user_id);
 339
 340    /* C99 */{
 341       char const *ep;
 342       bool_t doenv;
 343
 344       if(!(doenv = (ep = ok_vlook(LOGNAME)) == NULL) &&
 345             (doenv = strcmp(pwuid->pw_name, ep)))
 346          n_err(_("Warning: $LOGNAME (%s) not identical to user (%s)!\n"),
 347             ep, pwuid->pw_name);
 348       if(doenv){
 349          n_pstate |= n_PS_ROOT;
 350          ok_vset(LOGNAME, pwuid->pw_name);
 351          n_pstate &= ~n_PS_ROOT;
 352       }
 353
 354       if((ep = ok_vlook(USER)) != NULL && strcmp(pwuid->pw_name, ep)){
 355          n_err(_("Warning: $USER (%s) not identical to user (%s)!\n"),
 356             ep, pwuid->pw_name);
 357          n_pstate |= n_PS_ROOT;
 358          ok_vset(USER, pwuid->pw_name);
 359          n_pstate &= ~n_PS_ROOT;
 360       }
 361    }
 362
 363    /* XXX myfullname = pw->pw_gecos[OPTIONAL!] -> GUT THAT; TODO pw_shell */
 364
 365    /* */
 366    if((cp = ok_vlook(HOME)) == NULL ||
 367          !is_dir(cp) || access(cp, R_OK | W_OK | X_OK)){
 368       cp = pwuid->pw_dir;
 369       n_pstate |= n_PS_ROOT;
 370       ok_vset(HOME, cp);
 371       n_pstate &= ~n_PS_ROOT;
 372    }
 373
 374    cp = ok_vlook(TMPDIR);
 375    assert(cp != NULL);
 376    if(!is_dir(cp) || access(cp, R_OK | W_OK | X_OK)){
 377       n_err(_("$TMPDIR is not a directory or not accessible: %s\n"),
 378          n_shexp_quote_cp(cp, FAL0));
 379       ok_vclear(TMPDIR);
 380    }
 381
 382    /* Ensure some variables get loaded */
 383    (void)ok_blook(POSIXLY_CORRECT);
 384    NYD_LEAVE;
 385 }
 386
 387 static void
 388 a_main_setscreensize(int is_sighdl){/* TODO globl policy; int wraps; minvals! */
 389    struct termios tbuf;
 390 #ifdef TIOCGWINSZ
 391    struct winsize ws;
 392 #elif defined TIOCGSIZE
 393    struct ttysize ts;
 394 #endif
 395    NYD_ENTER;
 396
 397    n_scrnheight = n_realscreenheight = n_scrnwidth = 0;
 398
 399    /* (Also) POSIX: LINES and COLUMNS always override.  Adjust this
 400     * a little bit to be able to honour resizes during our lifetime and
 401     * only honour it upon first run; abuse *is_sighdl* as an indicator */
 402    if(!is_sighdl){
 403       char const *cp;
 404
 405       /* We manage those variables for our child processes, so ensure they
 406        * are up to date, always */
 407       assert(n_psonce & n_PSO_INTERACTIVE);
 408       n_pstate |= n_PS_SIGWINCH_PEND;
 409
 410       if((cp = ok_vlook(LINES)) != NULL){
 411          n_idec_ui32_cp(&n_scrnheight, cp, 0, NULL);
 412          n_realscreenheight = n_scrnheight;
 413       }
 414       if((cp = ok_vlook(COLUMNS)) != NULL)
 415          n_idec_ui32_cp(&n_scrnwidth, cp, 0, NULL);
 416
 417       if(n_scrnwidth != 0 && n_scrnheight != 0)
 418          goto jleave;
 419    }
 420
 421 #ifdef TIOCGWINSZ
 422    if(ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1)
 423       ws.ws_col = ws.ws_row = 0;
 424 #elif defined TIOCGSIZE
 425    if(ioctl(STDOUT_FILENO, TIOCGSIZE, &ws) == -1)
 426       ts.ts_lines = ts.ts_cols = 0;
 427 #endif
 428
 429    if(n_scrnheight == 0){
 430       speed_t ospeed;
 431
 432       ospeed = ((tcgetattr(fileno(n_tty_fp), &tbuf) == -1)
 433             ? B9600 : cfgetospeed(&tbuf));
 434
 435       if(ospeed < B1200)
 436          n_scrnheight = 9;
 437       else if(ospeed == B1200)
 438          n_scrnheight = 14;
 439 #ifdef TIOCGWINSZ
 440       else if(ws.ws_row != 0)
 441          n_scrnheight = ws.ws_row;
 442 #elif defined TIOCGSIZE
 443       else if(ts.ts_lines != 0)
 444          n_scrnheight = ts.ts_lines;
 445 #endif
 446       else
 447          n_scrnheight = 24;
 448
 449 #if defined TIOCGWINSZ || defined TIOCGSIZE
 450       if(0 ==
 451 # ifdef TIOCGWINSZ
 452             (n_realscreenheight = ws.ws_row)
 453 # else
 454             (n_realscreenheight = ts.ts_lines)
 455 # endif
 456       )
 457          n_realscreenheight = 24;
 458 #endif
 459    }
 460
 461    if(n_scrnwidth == 0 && 0 ==
 462 #ifdef TIOCGWINSZ
 463          (n_scrnwidth = ws.ws_col)
 464 #elif defined TIOCGSIZE
 465          (n_scrnwidth = ts.ts_cols)
 466 #endif
 467    )
 468       n_scrnwidth = 80;
 469
 470 jleave:
 471 #ifdef SIGWINCH
 472    if(is_sighdl){
 473       assert(n_psonce & n_PSO_INTERACTIVE);
 474       n_pstate |= n_PS_SIGWINCH_PEND; /* XXX Not atomic */
 475       n_tty_signal(SIGWINCH);
 476    }
 477 #endif
 478    NYD_LEAVE;
 479 }
 480
 481 static sigjmp_buf a_main__hdrjmp; /* XXX */
 482
 483 static int
 484 a_main_rcv_mode(char const *folder, char const *Larg){
 485    int i;
 486    sighandler_type prevint;
 487    NYD_ENTER;
 488
 489    if(folder == NULL)
 490       folder = "%";
 491
 492    i = (n_poption & n_PO_QUICKRUN_MASK) ? FEDIT_RDONLY : FEDIT_NONE;
 493    i = setfile(folder, i);
 494    if(i < 0){
 495       n_exit_status = n_EXIT_ERR; /* error already reported */
 496       goto jquit;
 497    }
 498    if(n_poption & n_PO_QUICKRUN_MASK){
 499       n_exit_status = i;
 500       if(i == n_EXIT_OK && (!(n_poption & n_PO_EXISTONLY) ||
 501             (n_poption & n_PO_HEADERLIST)))
 502          print_header_summary(Larg);
 503       goto jquit;
 504    }
 505    temporary_folder_hook_check(FAL0);
 506
 507    if(i > 0 && !ok_blook(emptystart)){
 508       n_exit_status = n_EXIT_ERR;
 509       goto jleave;
 510    }
 511
 512    if(sigsetjmp(a_main__hdrjmp, 1) == 0){
 513       if((prevint = safe_signal(SIGINT, SIG_IGN)) != SIG_IGN)
 514          safe_signal(SIGINT, &a_main_hdrstop);
 515       if(!(n_poption & n_PO_N_FLAG)){
 516          if(!ok_blook(quiet))
 517             fprintf(n_stdout, _("%s version %s.  Type `?' for help\n"),
 518                (ok_blook(bsdcompat) ? "Mail" : n_uagent), ok_vlook(version));
 519          announce(1);
 520          fflush(n_stdout);
 521       }
 522       safe_signal(SIGINT, prevint);
 523    }
 524
 525    /* Enter the command loop */
 526    if(n_psonce & n_PSO_INTERACTIVE)
 527       n_tty_init();
 528    n_commands();
 529    if(n_psonce & n_PSO_INTERACTIVE)
 530       n_tty_destroy();
 531
 532    if(mb.mb_type == MB_FILE || mb.mb_type == MB_MAILDIR){
 533       safe_signal(SIGHUP, SIG_IGN);
 534       safe_signal(SIGINT, SIG_IGN);
 535       safe_signal(SIGQUIT, SIG_IGN);
 536    }
 537 jquit:
 538    save_mbox_for_possible_quitstuff();
 539    quit(FAL0);
 540 jleave:
 541    NYD_LEAVE;
 542    return n_exit_status;
 543 }
 544
 545 static void
 546 a_main_hdrstop(int signo){
 547    NYD_X; /* Signal handler */
 548    n_UNUSED(signo);
 549
 550    fflush(n_stdout);
 551    n_err_sighdl(_("\nInterrupt\n"));
 552    siglongjmp(a_main__hdrjmp, 1);
 553 }
 554
 555 int
 556 main(int argc, char *argv[]){
 557    /* Keep in SYNC: ./nail.1:"SYNOPSIS, main() */
 558    static char const
 559       optstr[] = "A:a:Bb:c:dEeFfHhiL:M:m:NnO:q:Rr:S:s:tu:VvX:::~#.",
 560       usagestr[] = N_(
 561          "Synopsis:\n"
 562          "  %s -h\n"
 563
 564          "  %s [-BdEFintv~] [-: spec] [-A account]\n"
 565          "\t [-a attachment] [-b bcc-addr] [-c cc-addr]\n"
 566          "\t [-M type | -m file | -q file | -t]\n"
 567          "\t [-r from-addr] [-S var[=value]..]\n"
 568          "\t [-s subject] [-X cmd] [-.] to-addr.. [-- mta-option..]\n"
 569
 570          "  %s [-BdEeHiNnRv~] [-: spec] [-A account]\n"
 571          "\t [-L spec-list] [-r from-addr] [-S var[=value]..]\n"
 572          "\t [-u user] [-X cmd] [-- mta-option..]\n"
 573
 574          "  %s [-BdEeHiNnRv~#] [-: spec] [-A account] -f\n"
 575          "\t [-L spec-list] [-r from-addr] [-S var[=value]..]\n"
 576          "\t [-X cmd] [file] [-- mta-option..]\n"
 577       );
 578 #define _USAGE_ARGS , n_progname, n_progname, n_progname, n_progname
 579
 580    int i;
 581    char *cp;
 582    enum{
 583       a_RF_NONE = 0,
 584       a_RF_SET = 1<<0,
 585       a_RF_SYSTEM = 1<<1,
 586       a_RF_USER = 1<<2,
 587       a_RF_ALL = a_RF_SYSTEM | a_RF_USER
 588    } resfiles;
 589    size_t oargs_size, oargs_cnt, Xargs_size, Xargs_cnt, smopts_size;
 590    char const *Aarg, *emsg, *folder, *Larg, *okey, **oargs, *qf,
 591       *subject, *uarg, **Xargs;
 592    struct attachment *attach;
 593    struct name *to, *cc, *bcc;
 594    struct a_arg *a_head, *a_curr;
 595    NYD_ENTER;
 596
 597    a_head = NULL;
 598    n_UNINIT(a_curr, NULL);
 599    to = cc = bcc = NULL;
 600    attach = NULL;
 601    Aarg = emsg = folder = Larg = okey = qf = subject = uarg = NULL;
 602    oargs = Xargs = NULL;
 603    oargs_size = oargs_cnt = Xargs_size = Xargs_cnt = smopts_size = 0;
 604    resfiles = a_RF_ALL;
 605
 606    /*
 607     * Start our lengthy setup, finalize by setting n_PSO_STARTED
 608     */
 609
 610    n_progname = argv[0];
 611    a_main_startup();
 612
 613    /* Command line parsing
 614     * Variable settings need to be done twice, since the user surely wants the
 615     * setting to take effect immediately, but also doesn't want it to be
 616     * overwritten from within resource files */
 617    while((i = a_main_getopt(argc, argv, optstr)) >= 0){
 618       switch(i){
 619       case 'A':
 620          /* Execute an account command later on */
 621          Aarg = a_main_oarg;
 622          break;
 623       case 'a':{
 624          struct a_arg *nap;
 625
 626          n_psonce |= n_PSO_SENDMODE;
 627          nap = salloc(sizeof(struct a_arg));
 628          if(a_head == NULL)
 629             a_head = nap;
 630          else
 631             a_curr->aa_next = nap;
 632          nap->aa_next = NULL;
 633          nap->aa_file = a_main_oarg;
 634          a_curr = nap;
 635       }  break;
 636       case 'B':
 637          n_OBSOLETE(_("-B is obsolete, please use -# as necessary"));
 638          break;
 639       case 'b':
 640          /* Get Blind Carbon Copy Recipient list */
 641          n_psonce |= n_PSO_SENDMODE;
 642          bcc = cat(bcc, lextract(a_main_oarg, GBCC | GFULL));
 643          break;
 644       case 'c':
 645          /* Get Carbon Copy Recipient list */
 646          n_psonce |= n_PSO_SENDMODE;
 647          cc = cat(cc, lextract(a_main_oarg, GCC | GFULL));
 648          break;
 649       case 'd':
 650          ok_bset(debug);
 651          okey = "debug";
 652          goto joarg;
 653       case 'E':
 654          n_OBSOLETE(_("-E will be removed, please use \"-Sskipemptybody\""));
 655          ok_bset(skipemptybody);
 656          okey = "skipemptybody";
 657          goto joarg;
 658       case 'e':
 659          n_poption |= n_PO_EXISTONLY;
 660          break;
 661       case 'F':
 662          n_poption |= n_PO_F_FLAG;
 663          n_psonce |= n_PSO_SENDMODE;
 664          break;
 665       case 'f':
 666          /* User is specifying file to "edit" with Mail, as opposed to reading
 667           * system mailbox.  If no argument is given, we read his mbox file.
 668           * Check for remaining arguments later */
 669          folder = "&";
 670          break;
 671       case 'H':
 672          n_poption |= n_PO_HEADERSONLY;
 673          break;
 674       case 'h':
 675          n_err(V_(usagestr) _USAGE_ARGS);
 676          goto j_leave;
 677       case 'i':
 678          /* Ignore interrupts */
 679          ok_bset(ignore);
 680          okey = "ignore";
 681          goto joarg;
 682       case 'L':
 683          Larg = a_main_oarg;
 684          n_poption |= n_PO_HEADERLIST;
 685          if(*Larg == '"' || *Larg == '\''){ /* TODO list.c:listspec_check() */
 686             size_t j;
 687
 688             j = strlen(++Larg);
 689             if(j > 0){
 690                cp = savestrbuf(Larg, --j);
 691                Larg = cp;
 692             }
 693          }
 694          break;
 695       case 'M':
 696          if(qf != NULL && (!(n_poption & n_PO_Mm_FLAG) || qf != (char*)-1))
 697             goto jeMmq;
 698          n_poption_arg_Mm = a_main_oarg;
 699          qf = (char*)-1;
 700          if(0){
 701             /* FALLTHRU*/
 702       case 'm':
 703             if(qf != NULL && (!(n_poption & n_PO_Mm_FLAG) || qf == (char*)-1))
 704                goto jeMmq;
 705             qf = a_main_oarg;
 706          }
 707          n_poption |= n_PO_Mm_FLAG;
 708          n_psonce |= n_PSO_SENDMODE;
 709          break;
 710       case 'N':
 711          /* Avoid initial header printing */
 712          ok_bclear(header);
 713          okey = "noheader";
 714          goto joarg;
 715       case 'n':
 716          /* Don't source "unspecified system start-up file" */
 717          if(resfiles & a_RF_SET){
 718             emsg = N_("-n cannot be used in conjunction with -:");
 719             goto jusage;
 720          }
 721          resfiles = a_RF_USER;
 722          break;
 723       case 'O':
 724          /* Additional options to pass-through to MTA TODO v15-compat legacy */
 725          if(n_smopts_cnt == smopts_size)
 726             smopts_size = a_main_grow_cpp(&n_smopts, smopts_size + 8,
 727                   n_smopts_cnt);
 728          n_smopts[n_smopts_cnt++] = a_main_oarg;
 729          break;
 730       case 'q':
 731          if(qf != NULL && (n_poption & n_PO_Mm_FLAG)){
 732 jeMmq:
 733             emsg = N_("Only one of -M, -m or -q may be given");
 734             goto jusage;
 735          }
 736          /* Quote file TODO drop? -Q with real quote?? what ? */
 737          n_psonce |= n_PSO_SENDMODE;
 738          /* Allow for now, we have to special check validity of -q- later on! */
 739          qf = (a_main_oarg[0] == '-' && a_main_oarg[1] == '\0')
 740                ? (char*)-1 : a_main_oarg;
 741          break;
 742       case 'R':
 743          /* Open folders read-only */
 744          n_poption |= n_PO_R_FLAG;
 745          break;
 746       case 'r':
 747          /* Set From address. */
 748          n_poption |= n_PO_r_FLAG;
 749          if(a_main_oarg[0] != '\0'){
 750             struct name *fa;
 751
 752             fa = nalloc(a_main_oarg, GSKIN | GFULL | GFULLEXTRA);
 753             if(is_addr_invalid(fa, EACM_STRICT | EACM_NOLOG)){
 754                emsg = N_("Invalid address argument with -r");
 755                goto jusage;
 756             }
 757             n_poption_arg_r = fa;
 758             /* TODO -r options is set in n_smopts, but may
 759              * TODO be overwritten by setting from= in
 760              * TODO an interactive session!
 761              * TODO Maybe disable setting of from?
 762              * TODO Warn user?  Update manual!! */
 763             okey = savecat("from=", fa->n_fullname);
 764             goto joarg;
 765          }
 766          break;
 767       case 'S':
 768          /* Set variable (TODO twice [only if successful]) */
 769          {  char const *a[2];
 770             bool_t b;
 771
 772             okey = a[0] = a_main_oarg;
 773             a[1] = NULL;
 774             n_pstate |= n_PS_ROBOT;
 775             b = (c_set(a) == 0);
 776             n_pstate &= ~n_PS_ROBOT;
 777             if(!b)
 778                break;
 779          }
 780 joarg:
 781          if(oargs_cnt == oargs_size)
 782             oargs_size = a_main_grow_cpp(&oargs, oargs_size + 8, oargs_cnt);
 783          oargs[oargs_cnt++] = okey;
 784          break;
 785       case 's':
 786          /* Subject:; take care for Debian #419840 and strip any \r and \n */
 787          if(n_anyof_cp("\n\r", subject = a_main_oarg)){
 788             n_err(_("-s: normalizing away invalid ASCII NL / CR bytes\n"));
 789             for(subject = cp = savestr(a_main_oarg); *cp != '\0'; ++cp)
 790                if(*cp == '\n' || *cp == '\r')
 791                   *cp = ' ';
 792          }
 793          n_psonce |= n_PSO_SENDMODE;
 794          break;
 795       case 't':
 796          /* Read defined set of headers from mail to be sent */
 797          n_poption |= n_PO_t_FLAG;
 798          n_psonce |= n_PSO_SENDMODE;
 799          break;
 800       case 'u':
 801          uarg = savecat("%", a_main_oarg);
 802          break;
 803       case 'V':
 804          fprintf(n_stdout, _("%s version %s\n"), n_uagent, ok_vlook(version));
 805          n_exit_status = n_EXIT_OK;
 806          goto j_leave;
 807       case 'v':
 808          /* Be verbose */
 809          ok_bset(verbose);
 810          okey = "verbose";
 811          goto joarg;
 812       case 'X':
 813          /* Add to list of commands to exec before entering normal operation */
 814          if(Xargs_cnt == Xargs_size)
 815             Xargs_size = a_main_grow_cpp(&Xargs, Xargs_size + 8, Xargs_cnt);
 816          Xargs[Xargs_cnt++] = a_main_oarg;
 817          break;
 818       case ':':
 819          /* Control which resource files shall be loaded */
 820          if(!(resfiles & (a_RF_SET | a_RF_SYSTEM))){
 821             emsg = N_("-n cannot be used in conjunction with -:");
 822             goto jusage;
 823          }
 824          resfiles = a_RF_SET;
 825          while((i = *a_main_oarg++) != '\0')
 826             switch(i){
 827             case 'S': case 's': resfiles |= a_RF_SYSTEM; break;
 828             case 'U': case 'u': resfiles |= a_RF_USER; break;
 829             case ':': case '/': resfiles &= ~a_RF_ALL; break;
 830             default:
 831                emsg = N_("Invalid argument of -:");
 832                goto jusage;
 833             }
 834          break;
 835       case '~':
 836          /* Enable command escapes even in non-interactive mode */
 837          n_poption |= n_PO_TILDE_FLAG;
 838          break;
 839       case '#':
 840          /* Work in batch mode, even if non-interactive */
 841          if(!(n_psonce & n_PSO_INTERACTIVE))
 842             setvbuf(n_stdin, NULL, _IOLBF, 0);
 843          n_poption |= n_PO_TILDE_FLAG | n_PO_BATCH_FLAG;
 844          if (oargs_cnt + 8 >= oargs_size)
 845             oargs_size = a_main_grow_cpp(&oargs, oargs_size + 9, oargs_cnt);
 846          folder = "/dev/null";
 847          ok_vset(MAIL, folder);
 848          ok_vset(MBOX, folder);
 849          ok_bset(emptystart);
 850          ok_bclear(header);
 851          ok_vset(inbox, folder);
 852          ok_bset(quiet);
 853          ok_bset(sendwait);
 854          ok_bset(typescript_mode);
 855          oargs[oargs_cnt + 0] = "MAIL=/dev/null";
 856          oargs[oargs_cnt + 1] = "MBOX=/dev/null";
 857          oargs[oargs_cnt + 2] = "emptystart";
 858          oargs[oargs_cnt + 3] = "noheader";
 859          oargs[oargs_cnt + 4] = "inbox=/dev/null";
 860          oargs[oargs_cnt + 5] = "quiet";
 861          oargs[oargs_cnt + 6] = "sendwait";
 862          oargs[oargs_cnt + 7] = "typescript-mode";
 863          oargs_cnt += 8;
 864          break;
 865       case '.':
 866          n_psonce |= n_PSO_SENDMODE;
 867          goto jgetopt_done;
 868       case '?':
 869 jusage:
 870          if(emsg != NULL)
 871             n_err("%s\n", V_(emsg));
 872          n_err(V_(usagestr) _USAGE_ARGS);
 873 #undef _USAGE_ARGS
 874          n_exit_status = n_EXIT_USE;
 875          goto j_leave;
 876       }
 877    }
 878 jgetopt_done:
 879    ;
 880
 881    /* The normal arguments may be followed by MTA arguments after a "--";
 882     * however, -f may take off an argument, too, and before that.
 883     * Since MTA arguments after "--" require *expandargv*, delay parsing off
 884     * those options until after the resource files are loaded... */
 885    if((cp = argv[i = a_main_oind]) == NULL)
 886       ;
 887    else if(cp[0] == '-' && cp[1] == '-' && cp[2] == '\0')
 888       ++i;
 889    /* n_PO_BATCH_FLAG sets to /dev/null, but -f can still be used and sets & */
 890    else if(folder != NULL && /*folder[0] == '&' &&*/ folder[1] == '\0'){
 891       folder = cp;
 892       if((cp = argv[++i]) != NULL){
 893          if(cp[0] != '-' || cp[1] != '-' || cp[2] != '\0'){
 894             emsg = N_("More than one file given with -f");
 895             goto jusage;
 896          }
 897          ++i;
 898       }
 899    }else{
 900       n_psonce |= n_PSO_SENDMODE;
 901       for(;;){
 902          to = cat(to, lextract(cp, GTO | GFULL));
 903          if((cp = argv[++i]) == NULL)
 904             break;
 905          if(cp[0] == '-' && cp[1] == '-' && cp[2] == '\0'){
 906             ++i;
 907             break;
 908          }
 909       }
 910    }
 911    a_main_oind = i;
 912
 913    /* ...BUT, since we use salloc() for the MTA n_smopts storage we need to
 914     * allocate the necessary space for them before we fixate that storage! */
 915    while(argv[i] != NULL)
 916       ++i;
 917    if(n_smopts_cnt + i > smopts_size)
 918       DBG(smopts_size =)
 919       a_main_grow_cpp(&n_smopts, n_smopts_cnt + i + 1, n_smopts_cnt);
 920
 921    /* Check for inconsistent arguments, fix some temporaries */
 922    if(n_psonce & n_PSO_SENDMODE){
 923       /* XXX This is only because BATCH_FLAG sets *folder*=/dev/null
 924        * XXX in order to function.  Ideally that would not be needed */
 925       if(folder != NULL && !(n_poption & n_PO_BATCH_FLAG)){
 926          emsg = N_("Cannot give -f and people to send to.");
 927          goto jusage;
 928       }
 929       if(uarg != NULL){
 930          emsg = N_("The -u option cannot be used in send mode");
 931          goto jusage;
 932       }
 933       if(!(n_poption & n_PO_t_FLAG) && to == NULL){
 934          emsg = N_("Send options without primary recipient specified.");
 935          goto jusage;
 936       }
 937       if((n_poption & n_PO_t_FLAG) && qf != NULL){
 938          emsg = N_("The -M, -m, -q and -t options are mutual exclusive.");
 939          goto jusage;
 940       }
 941       if(n_poption & (n_PO_EXISTONLY | n_PO_HEADERSONLY | n_PO_HEADERLIST)){
 942          emsg = N_("The -e, -H and -L options cannot be used in send mode.");
 943          goto jusage;
 944       }
 945       if(n_poption & n_PO_R_FLAG){
 946          emsg = N_("The -R option is meaningless in send mode.");
 947          goto jusage;
 948       }
 949
 950       if(n_psonce & n_PSO_INTERACTIVE){
 951          if(qf == (char*)-1){
 952             if(!(n_poption & n_PO_Mm_FLAG))
 953                emsg = N_("-q can't use standard input when interactive.\n");
 954             goto jusage;
 955          }
 956       }
 957    }else{
 958       if(uarg != NULL && folder != NULL){
 959          emsg = N_("The options -u and -f (and -#) are mutually exclusive");
 960          goto jusage;
 961       }
 962       if((n_poption & (n_PO_EXISTONLY | n_PO_HEADERSONLY)) ==
 963             (n_PO_EXISTONLY | n_PO_HEADERSONLY)){
 964          emsg = N_("The options -e and -H are mutual exclusive");
 965          goto jusage;
 966       }
 967       if((n_poption & (n_PO_HEADERSONLY | n_PO_HEADERLIST) /* TODO OBSOLETE */
 968             ) == (n_PO_HEADERSONLY | n_PO_HEADERLIST))
 969          n_OBSOLETE(_("please use \"-e -L xy\" instead of \"-H -L xy\""));
 970
 971       if(uarg != NULL)
 972          folder = uarg;
 973    }
 974
 975    /*
 976     * Likely to go, perform more setup
 977     */
 978
 979    a_main_setup_vars();
 980
 981    if(n_psonce & n_PSO_INTERACTIVE){
 982       a_main_setscreensize(0);
 983 #ifdef SIGWINCH
 984 # ifndef TTY_WANTS_SIGWINCH
 985       if(safe_signal(SIGWINCH, SIG_IGN) != SIG_IGN)
 986 # endif
 987          safe_signal(SIGWINCH, &a_main_setscreensize);
 988 #endif
 989    }else
 990       n_scrnheight = n_realscreenheight = 24, n_scrnwidth = 80;
 991
 992    /* Fixate the current snapshot of our global auto-reclaimed storage instance.
 993     * Memory is auto-reclaimed from now on */
 994    n_memory_autorec_fixate();
 995
 996    /* load() any resource files */
 997    if(resfiles & a_RF_ALL){
 998       /* *expand() returns a savestr(), but load only uses the file name for
 999        * fopen(), so it's safe to do this */
1000       if(resfiles & a_RF_SYSTEM){
1001          bool_t nload;
1002
1003          if((nload = ok_blook(NAIL_NO_SYSTEM_RC)))
1004             n_OBSOLETE(_("Please use $MAILX_NO_SYSTEM_RC instead of "
1005                "$NAIL_NO_SYSTEM_RC"));
1006          if(!nload && !ok_blook(MAILX_NO_SYSTEM_RC))
1007             n_load(VAL_SYSCONFDIR "/" VAL_SYSCONFRC);
1008       }
1009
1010       if(resfiles & a_RF_USER)
1011          n_load(fexpand(ok_vlook(MAILRC), FEXP_LOCAL | FEXP_NOPROTO));
1012
1013       if((cp = ok_vlook(NAIL_EXTRA_RC)) != NULL)
1014          n_OBSOLETE(_("Please use *mailx-extra-rc*, not *NAIL_EXTRA_RC*"));
1015       if(cp != NULL || (cp = ok_vlook(mailx_extra_rc)) != NULL)
1016          n_load(fexpand(cp, FEXP_LOCAL | FEXP_NOPROTO));
1017    }
1018
1019    /* Ensure the -S and other command line options take precedence over
1020     * anything that may have been placed in resource files.
1021     * Our "ternary binary" option *verbose* needs special treament */
1022    if((n_poption & (n_PO_VERB | n_PO_VERBVERB)) == n_PO_VERB)
1023       n_poption &= ~n_PO_VERB;
1024    /* ..and be silent when unsetting an undefined variable */
1025    n_pstate |= n_PS_ROBOT;
1026    for(i = 0; UICMP(z, i, <, oargs_cnt); ++i){
1027       char const *a[2];
1028
1029       a[0] = oargs[i];
1030       a[1] = NULL;
1031       c_set(a);
1032    }
1033    n_pstate &= ~n_PS_ROBOT;
1034
1035    /* Cause possible umask(2), now that any setting is established, and before
1036     * we change accounts, evaluate commands etc. */
1037    (void)ok_vlook(umask);
1038
1039    /* Additional options to pass-through to MTA, and allowed to do so? */
1040    if((cp = ok_vlook(expandargv)) != NULL){
1041       bool_t isfail, isrestrict;
1042
1043       isfail = !asccasecmp(cp, "fail");
1044       isrestrict = (!isfail && !asccasecmp(cp, "restrict"));
1045
1046       if((n_poption & n_PO_D_V) && !isfail && !isrestrict && *cp != '\0')
1047          n_err(_("Unknown *expandargv* value: %s\n"), cp);
1048
1049       if((cp = argv[i = a_main_oind]) != NULL){
1050          if(isfail || (isrestrict && (!(n_poption & n_PO_TILDE_FLAG) ||
1051                   !(n_psonce & n_PSO_INTERACTIVE)))){
1052             n_err(_("*expandargv* doesn't allow MTA arguments; consider "
1053                "using *sendmail-arguments*\n"));
1054             n_exit_status = n_EXIT_USE | n_EXIT_SEND_ERROR;
1055             goto jleave;
1056          }
1057          do{
1058             assert(n_smopts_cnt + 1 <= smopts_size);
1059             n_smopts[n_smopts_cnt++] = cp;
1060          }while((cp = argv[++i]) != NULL);
1061       }
1062    }
1063
1064    /* We had to wait until the resource files are loaded and any command line
1065     * setting has been restored, but get the termcap up and going before we
1066     * switch account or running commands */
1067 #ifdef n_HAVE_TCAP
1068    if((n_psonce & n_PSO_INTERACTIVE) && !(n_poption & n_PO_QUICKRUN_MASK))
1069       n_termcap_init();
1070 #endif
1071
1072    /* Now we can set the account */
1073    if(Aarg != NULL){
1074       char const *a[2];
1075
1076       a[0] = Aarg;
1077       a[1] = NULL;
1078       c_account(a);
1079    }
1080
1081    /* "load()" commands given on command line */
1082    if(Xargs_cnt > 0)
1083       n_load_Xargs(Xargs, Xargs_cnt);
1084
1085    /* Final tests */
1086    if(n_poption & n_PO_Mm_FLAG){
1087       if(qf == (char*)-1){
1088          if(!mime_type_check_mtname(n_poption_arg_Mm)){
1089             n_err(_("Could not find `mimetype' for -M argument: %s\n"),
1090                n_poption_arg_Mm);
1091             n_exit_status = n_EXIT_ERR;
1092             goto jleave;
1093          }
1094       }else if((n_poption_arg_Mm = mime_type_classify_filename(qf)) == NULL){
1095          n_err(_("Could not `mimetype'-classify -m argument: %s\n"),
1096             n_shexp_quote_cp(qf, FAL0));
1097          n_exit_status = n_EXIT_ERR;
1098          goto jleave;
1099       }else if(!asccasecmp(n_poption_arg_Mm, "text/plain")) /* TODO no: magic */
1100          n_poption_arg_Mm = NULL;
1101    }
1102
1103    /*
1104     * We're finally completely setup and ready to go
1105     */
1106    n_psonce |= n_PSO_STARTED;
1107
1108    if(!(n_psonce & n_PSO_SENDMODE)){
1109       n_exit_status = a_main_rcv_mode(folder, Larg);
1110       goto jleave;
1111    }
1112
1113    /* Now that full mailx(1)-style file expansion is possible handle the
1114     * attachments which we had delayed due to this.
1115     * This may use savestr(), but since we won't enter the command loop we
1116     * don't need to care about that */
1117    for(; a_head != NULL; a_head = a_head->aa_next){
1118       enum n_attach_error aerr;
1119
1120       attach = n_attachment_append(attach, a_head->aa_file, &aerr, NULL);
1121       if(aerr != n_ATTACH_ERR_NONE){
1122          n_exit_status = n_EXIT_ERR;
1123          goto jleave;
1124       }
1125    }
1126
1127    if(n_psonce & n_PSO_INTERACTIVE)
1128       n_tty_init();
1129    mail(to, cc, bcc, subject, attach, qf, ((n_poption & n_PO_F_FLAG) != 0));
1130    if(n_psonce & n_PSO_INTERACTIVE)
1131       n_tty_destroy();
1132
1133 jleave:
1134   /* Be aware of identical code for `exit' command! */
1135 #ifdef n_HAVE_TCAP
1136    if((n_psonce & n_PSO_INTERACTIVE) && !(n_poption & n_PO_QUICKRUN_MASK))
1137       n_termcap_destroy();
1138 #endif
1139
1140 j_leave:
1141 #ifdef HAVE_MEMORY_DEBUG
1142    n_memory_autorec_pop(NULL);
1143 #endif
1144 #if (defined HAVE_DEBUG || defined HAVE_DEVEL)
1145    n_memory_reset();
1146 #endif
1147    NYD_LEAVE;
1148    return n_exit_status;
1149 }
1150
1151 /* Source the others in that case! */
1152 #ifdef HAVE_AMALGAMATION
1153 # include "config.h"
1154 #endif
1155
1156 /* s-it-mode */