1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
2 *@ Startup and initialization.
3 *@ This file is also used to materialize externals.
5 * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
6 * Copyright (c) 2012 - 2018 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
9 * Copyright (c) 1980, 1993
10 * The Regents of the University of California. All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
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.
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
42 #include <sys/ioctl.h>
47 struct a_arg
*aa_next
;
51 /* (extern, but not with amalgamation, so define here) */
52 VL
char const n_weekday_names
[7 + 1][4] = {
53 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", ""
55 VL
char const n_month_names
[12 + 1][4] = {
56 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
57 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", ""
59 VL
char const n_uagent
[sizeof VAL_UAGENT
] = VAL_UAGENT
;
61 VL
char const n_error
[sizeof n_ERROR
] = N_(n_ERROR
);
63 VL
char const n_path_devnull
[sizeof n_PATH_DEVNULL
] = n_PATH_DEVNULL
;
64 VL
char const n_reproducible_name
[sizeof "reproducible_build"] =
66 VL
char const n_unirepl
[sizeof n_UNIREPL
] = n_UNIREPL
;
67 VL
char const n_empty
[1] = "";
68 VL
char const n_0
[2] = "0";
69 VL
char const n_1
[2] = "1";
70 VL
char const n_m1
[3] = "-1";
71 VL
char const n_em
[2] = "!";
72 VL
char const n_ns
[2] = "#";
73 VL
char const n_star
[2] = "*";
74 VL
char const n_hy
[2] = "-";
75 VL
char const n_qm
[2] = "?";
76 VL
char const n_at
[2] = "@";
77 VL ui16_t
const n_class_char
[1 + 0x7F] = {
78 #define a_BC C_BLANK | C_CNTRL
79 #define a_SC C_SPACE | C_CNTRL
80 #define a_WC C_WHITE | C_CNTRL
81 /* 000 nul 001 soh 002 stx 003 etx 004 eot 005 enq 006 ack 007 bel */
82 C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
,
83 /* 010 bs 011 ht 012 nl 013 vt 014 np 015 cr 016 so 017 si */
84 C_CNTRL
, a_BC
, a_WC
, a_SC
, a_SC
, a_SC
, C_CNTRL
, C_CNTRL
,
85 /* 020 dle 021 dc1 022 dc2 023 dc3 024 dc4 025 nak 026 syn 027 etb */
86 C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
,
87 /* 030 can 031 em 032 sub 033 esc 034 fs 035 gs 036 rs 037 us */
88 C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
,
92 /* 040 sp 041 ! 042 " 043 # 044 $ 045 % 046 & 047 ' */
93 C_BLANK
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
94 /* 050 ( 051 ) 052 * 053 + 054 , 055 - 056 . 057 / */
95 C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
96 /* 060 0 061 1 062 2 063 3 064 4 065 5 066 6 067 7 */
97 C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
,
98 /* 070 8 071 9 072 : 073 ; 074 < 075 = 076 > 077 ? */
99 C_DIGIT
, C_DIGIT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
100 /* 100 @ 101 A 102 B 103 C 104 D 105 E 106 F 107 G */
101 C_PUNCT
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
,
102 /* 110 H 111 I 112 J 113 K 114 L 115 M 116 N 117 O */
103 C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
,
104 /* 120 P 121 Q 122 R 123 S 124 T 125 U 126 V 127 W */
105 C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
,
106 /* 130 X 131 Y 132 Z 133 [ 134 \ 135 ] 136 ^ 137 _ */
107 C_UPPER
, C_UPPER
, C_UPPER
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
108 /* 140 ` 141 a 142 b 143 c 144 d 145 e 146 f 147 g */
109 C_PUNCT
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
,
110 /* 150 h 151 i 152 j 153 k 154 l 155 m 156 n 157 o */
111 C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
,
112 /* 160 p 161 q 162 r 163 s 164 t 165 u 166 v 167 w */
113 C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
,
114 /* 170 x 171 y 172 z 173 { 174 | 175 } 176 ~ 177 del */
115 C_LOWER
, C_LOWER
, C_LOWER
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_CNTRL
118 /* Our own little getopt(3) */
119 static char const *a_main_oarg
;
120 static int a_main_oind
, /*_oerr,*/ a_main_oopt
;
122 /* A little getopt(3). Note: --help/--version == -h/-v */
123 static int a_main_getopt(int argc
, char * const argv
[], char const *optstring
);
126 static void a_main_usage(FILE *fp
);
128 /* Perform basic startup initialization */
129 static void a_main_startup(void);
132 static size_t a_main_grow_cpp(char const ***cpp
, size_t newsize
, size_t oldcnt
);
134 /* Setup some variables which we require to be valid / verified */
135 static void a_main_setup_vars(void);
137 /* We're in an interactive session - compute what the screen size for printing
138 * headers etc. should be; notify tty upon resize if *is_sighdl* is not 0.
139 * We use the following algorithm for the height:
140 * If baud rate < 1200, use 9
141 * If baud rate = 1200, use 14
142 * If baud rate > 1200, use 24 or ws_row
143 * Width is either 80 or ws_col */
144 static void a_main_setscreensize(int is_sighdl
);
146 /* Ok, we are reading mail. Decide whether we are editing a mailbox or reading
147 * the system mailbox, and open up the right stuff */
148 static int a_main_rcv_mode(char const *folder
, char const *Larg
);
150 /* Interrupt printing of the headers */
151 static void a_main_hdrstop(int signo
);
154 a_main_getopt(int argc
, char * const argv
[], char const *optstring
){
155 static char const *lastp
;
163 /*if((colon = (optstring[0] == ':')))
170 if(a_main_oind
>= argc
|| argv
[a_main_oind
] == NULL
||
171 argv
[a_main_oind
][0] != '-' || argv
[a_main_oind
][1] == '\0')
173 if(argv
[a_main_oind
][1] == '-' && argv
[a_main_oind
][2] == '\0'){
174 /* We need this in for MTA arg detection (easier) ++a_main_oind;*/
177 curp
= &argv
[a_main_oind
][1];
180 for(a_main_oopt
= curp
[0]; optstring
[0] != '\0';){
181 if(optstring
[0] != a_main_oopt
){
182 optstring
+= 1 + (optstring
[1] == ':');
186 if(optstring
[1] == ':'){
188 a_main_oarg
= n_UNCONST(curp
+ 1);
191 if((a_main_oind
+= 2) > argc
){
192 /*if(!colon *//*&& _oerr*//*)*/{
193 n_err(_("%s: option requires an argument -- %c\n"),
194 argv
[0], (char)a_main_oopt
);
196 rv
= (/*colon ? ':' :*/ '?');
199 a_main_oarg
= argv
[a_main_oind
- 1];
211 /* Special support for --help and --version, which are quite common */
212 if(a_main_oopt
== '-' && &curp
[-1] == argv
[a_main_oind
]){
215 if(!strcmp(curp
, "-help"))
218 if(!strcmp(curp
, "-version"))
223 /* Definitive error */
224 /*if(!colon *//*&& opterr*//*)*/
225 n_err(_("%s: invalid option -- %c\n"), argv
[0], a_main_oopt
);
238 a_main_usage(FILE *fp
){
239 /* Stay in 24 lines */
244 i
= strlen(n_progname
);
245 i
= n_MIN(i
, sizeof(buf
) -1);
250 fprintf(fp
, _("%s (%s %s): send and receive Internet mail\n"),
251 n_progname
, n_uagent
, ok_vlook(version
));
253 "Send-only mode: send mail \"to-address\" receiver(s):\n"
254 " %s [-BDdEFinv~#] [-: spec] [-A account] [:-C \"custom: header\":]\n"
255 " %s [:-a attachment:] [:-b bcc-address:]\n"
256 " %s [:-c cc-address:] [-M type | -m file | -q file | -t]\n"
257 " %s [-r from-address] [:-S var[=value]:] [-s subject] [:-X cmd:]\n"
258 " %s [-.] :to-address: [-- :mta-option:]\n"),
259 n_progname
, buf
, buf
, buf
, buf
);
261 "\"Receive\" mode, starting on -u user, primary *inbox* or [$MAIL]:\n"
262 " %s [-BDdEeHiNnRv~#] [-: spec] [-A account] [:-C \"custom: header\":]\n"
263 " %s [-L spec] [-r from-address] [:-S var[=value]:]\n"
264 " %s [-u user] [:-X cmd:] [-- :mta-option:]\n"),
265 n_progname
, buf
, buf
);
267 "\"Receive\" mode, starting on -f (secondary $MBOX or [file]):\n"
268 " %s [-BDdEeHiNnRv~#] [-: spec] [-A account] [:-C \"custom: header\":]\n"
269 " %s -f [-L spec] [-r from-address] [:-S var[=value]:]\n"
270 " %s [:-X cmd:] [file] [-- :mta-option:]\n"),
271 n_progname
, buf
, buf
);
276 ". -d sandbox, -:/ no .rc files, -. end options and force send-mode\n"
277 ". -a attachment[=input-charset[#output-charset]]\n"
278 ". -b, -c, to-address, (-r): ex@am.ple or '(Lovely) Ex <am@p.le>'\n"
279 ". -[Mmqt]: special input data (-t: template message on stdin)\n"
280 ". -e only mail check, -H header summary; both: specification via -L\n"
281 ". -S sets variables, -X executes commands, -# enters batch mode\n"
282 ". Features: \"$ %s -Xversion -Xx\", WWW: %s\n"
283 ". Bugs to/Mail contact: \"$ %s %s\"\n"),
284 n_progname
, ok_vlook(contact_web
), n_progname
, ok_vlook(contact_mail
));
289 a_main_startup(void){
298 a_main_oind
= /*_oerr =*/ 1;
300 if((cp
= strrchr(n_progname
, '/')) != NULL
)
304 safe_signal(SIGABRT
, &_nyd_oncrash
);
306 safe_signal(SIGBUS
, &_nyd_oncrash
);
308 safe_signal(SIGFPE
, &_nyd_oncrash
);
309 safe_signal(SIGILL
, &_nyd_oncrash
);
310 safe_signal(SIGSEGV
, &_nyd_oncrash
);
313 /* Initialize our input, loop and command machinery */
316 /* Set up a reasonable environment */
318 /* TODO This is wrong: interactive is STDIN/STDERR for a POSIX sh(1).
319 * TODO For now we get this wrong, all over the place, as this software
320 * TODO has always been developed with stdout as an output channel.
321 * TODO Start doing it right for at least explicit terminal-related things,
322 * TODO but v15 should use ONLY this, also for terminal input! */
323 if(isatty(STDIN_FILENO
)){
324 n_psonce
|= n_PSO_TTYIN
;
325 #if defined HAVE_MLE || defined HAVE_TERMCAP
326 if((n_tty_fp
= fdopen(fileno(n_stdin
), "w")) != NULL
)
327 setvbuf(n_tty_fp
, NULL
, _IOLBF
, 0);
330 if(isatty(STDOUT_FILENO
))
331 n_psonce
|= n_PSO_TTYOUT
;
332 if((n_psonce
& (n_PSO_TTYIN
| n_PSO_TTYOUT
)) ==
333 (n_PSO_TTYIN
| n_PSO_TTYOUT
)){
334 n_psonce
|= n_PSO_INTERACTIVE
;
335 safe_signal(SIGPIPE
, dflpipe
= SIG_IGN
);
338 /* STDOUT is always line buffered from our point of view */
339 setvbuf(n_stdout
, NULL
, _IOLBF
, 0);
345 /* We need the endianess, runtime detected due to OPT_CROSS_BUILD */
347 union {ui16_t bom
; ui8_t buf
[2];} volatile u
;
350 if(u
.buf
[1] != 0xFEu
)
351 n_psonce
|= n_PSO_BIG_ENDIAN
;
357 iconvd
= (iconv_t
)-1;
360 /* Ensure some variables get loaded and/or verified */
362 (void)ok_blook(POSIXLY_CORRECT
);
367 a_main_grow_cpp(char const ***cpp
, size_t newsize
, size_t oldcnt
){
368 /* Just use auto-reclaimed storage, it will be preserved */
372 newcpp
= n_autorec_alloc(sizeof(char*) * (newsize
+ 1));
375 memcpy(newcpp
, *cpp
, oldcnt
* sizeof(char*));
382 a_main_setup_vars(void){
383 struct passwd
*pwuid
;
387 /* Detect, verify and fixate our invoking user (environment) */
388 n_group_id
= getgid();
389 if((pwuid
= getpwuid(n_user_id
= getuid())) == NULL
)
390 n_panic(_("Cannot associate a name with uid %lu"), (ul_i
)n_user_id
);
395 if(!(doenv
= (ep
= ok_vlook(LOGNAME
)) == NULL
) &&
396 (doenv
= (strcmp(pwuid
->pw_name
, ep
) != 0)))
397 n_err(_("Warning: $LOGNAME (%s) not identical to user (%s)!\n"),
400 n_pstate
|= n_PS_ROOT
;
401 ok_vset(LOGNAME
, pwuid
->pw_name
);
402 n_pstate
&= ~n_PS_ROOT
;
406 if((ep
= ok_vlook(USER
)) != NULL
&& strcmp(pwuid
->pw_name
, ep
)){
407 n_err(_("Warning: $USER (%s) not identical to user (%s)!\n"),
409 n_pstate
|= n_PS_ROOT
;
410 ok_vset(USER
, pwuid
->pw_name
);
411 n_pstate
&= ~n_PS_ROOT
;
414 /* XXX myfullname = pw->pw_gecos[OPTIONAL!] -> GUT THAT; TODO pw_shell */
417 /* Ensure some variables get loaded and/or verified.
418 * While doing so, take special care for invocations as root */
420 /* This is not automatized just as $TMPDIR is for the initial setting, since
421 * we have the pwuid at hand and can simply use it! See accmacvar.c! */
422 if(n_user_id
== 0 || (cp
= ok_vlook(HOME
)) == NULL
){
424 n_pstate
|= n_PS_ROOT
;
426 n_pstate
&= ~n_PS_ROOT
;
429 /* Do not honour TMPDIR if root */
431 ok_vset(TMPDIR
, NULL
);
433 (void)ok_vlook(TMPDIR
);
435 /* Are we in a reproducible-builds.org environment?
436 * That special mode bends some settings (again) */
437 if(ok_vlook(SOURCE_DATE_EPOCH
) != NULL
){
438 n_psonce
|= n_PSO_REPRODUCIBLE
;
439 n_pstate
|= n_PS_ROOT
;
440 n_progname
= n_reproducible_name
;
441 ok_vset(LOGNAME
, n_reproducible_name
);
442 /* Do not care about USER at all in this special mode! */
443 n_pstate
&= ~n_PS_ROOT
;
444 cp
= savecat(n_reproducible_name
, ": ");
445 ok_vset(log_prefix
, cp
);
448 if((n_psonce
& n_PSO_INTERACTIVE
) ||
449 ((n_psonce
& (n_PSO_TTYIN
| n_PSO_TTYOUT
)) &&
450 (n_poption
& n_PO_BATCH_FLAG
))){
451 a_main_setscreensize(FAL0
);
452 if(n_psonce
& n_PSO_INTERACTIVE
){
453 /* XXX Yet WINCH after SIGWINCH/SIGCONT, but see POSIX TOSTOP flag */
455 # ifndef TTY_WANTS_SIGWINCH
456 if(safe_signal(SIGWINCH
, SIG_IGN
) != SIG_IGN
)
458 safe_signal(SIGWINCH
, &a_main_setscreensize
);
461 safe_signal(SIGCONT
, &a_main_setscreensize
);
465 n_scrnheight
= n_realscreenheight
= 24, n_scrnwidth
= 80;
470 a_main_setscreensize(int is_sighdl
){/* TODO globl policy; int wraps; minvals! */
472 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
474 #elif defined TIOCGSIZE
479 n_scrnheight
= n_realscreenheight
= n_scrnwidth
= 0;
481 /* (Also) POSIX: LINES and COLUMNS always override. Adjust this
482 * a little bit to be able to honour resizes during our lifetime and
483 * only honour it upon first run; abuse *is_sighdl* as an indicator */
487 if((cp
= ok_vlook(LINES
)) != NULL
){
488 n_idec_ui32_cp(&n_scrnheight
, cp
, 0, NULL
);
489 n_realscreenheight
= n_scrnheight
;
491 if((cp
= ok_vlook(COLUMNS
)) != NULL
)
492 n_idec_ui32_cp(&n_scrnwidth
, cp
, 0, NULL
);
494 if(n_scrnwidth
!= 0 && n_scrnheight
!= 0)
497 /* For batch mode without explicit request, stop now */
498 if(!(n_psonce
& n_PSO_INTERACTIVE
)){
499 n_scrnheight
= n_realscreenheight
= 24;
505 #ifdef HAVE_TCGETWINSIZE
506 if(tcgetwinsize(fileno(n_tty_fp
), &ws
) == -1)
507 ws
.ws_col
= ws
.ws_row
= 0;
508 #elif defined TIOCGWINSZ
509 if(ioctl(fileno(n_tty_fp
), TIOCGWINSZ
, &ws
) == -1)
510 ws
.ws_col
= ws
.ws_row
= 0;
511 #elif defined TIOCGSIZE
512 if(ioctl(fileno(n_tty_fp
), TIOCGSIZE
, &ws
) == -1)
513 ts
.ts_lines
= ts
.ts_cols
= 0;
516 if(n_scrnheight
== 0){
517 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
519 n_scrnheight
= ws
.ws_row
;
520 #elif defined TIOCGSIZE
522 n_scrnheight
= ts
.ts_lines
;
527 ospeed
= ((tcgetattr(fileno(n_tty_fp
), &tbuf
) == -1)
528 ? B9600
: cfgetospeed(&tbuf
));
532 else if(ospeed
== B1200
)
538 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ || defined TIOCGSIZE
540 # if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
541 (n_realscreenheight
= ws
.ws_row
)
543 (n_realscreenheight
= ts
.ts_lines
)
546 n_realscreenheight
= 24;
550 if(n_scrnwidth
== 0 && 0 ==
551 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
552 (n_scrnwidth
= ws
.ws_col
)
553 #elif defined TIOCGSIZE
554 (n_scrnwidth
= ts
.ts_cols
)
560 n_pstate
|= n_PS_SIGWINCH_PEND
;
565 static sigjmp_buf a_main__hdrjmp
; /* XXX */
568 a_main_rcv_mode(char const *folder
, char const *Larg
){
570 sighandler_type prevint
;
576 else if(*folder
== '@'){
577 /* This must be treated specially to make possible invocation like
578 * -A imap -f @mailbox */
581 cp
= n_folder_query();
582 if(which_protocol(cp
, FAL0
, FAL0
, NULL
) == PROTO_IMAP
)
583 n_strscpy(mailname
, cp
, sizeof mailname
);
587 i
= (n_poption
& n_PO_QUICKRUN_MASK
) ? FEDIT_RDONLY
: FEDIT_NONE
;
588 i
= setfile(folder
, i
);
590 n_exit_status
= n_EXIT_ERR
; /* error already reported */
593 if(n_poption
& n_PO_QUICKRUN_MASK
){
595 if(i
== n_EXIT_OK
&& (!(n_poption
& n_PO_EXISTONLY
) ||
596 (n_poption
& n_PO_HEADERLIST
)))
597 print_header_summary(Larg
);
600 temporary_folder_hook_check(FAL0
);
602 if(i
> 0 && !ok_blook(emptystart
)){
603 n_exit_status
= n_EXIT_ERR
;
607 if(sigsetjmp(a_main__hdrjmp
, 1) == 0){
608 if((prevint
= safe_signal(SIGINT
, SIG_IGN
)) != SIG_IGN
)
609 safe_signal(SIGINT
, &a_main_hdrstop
);
611 fprintf(n_stdout
, _("%s version %s. Type `?' for help\n"),
613 (n_psonce
& n_PSO_REPRODUCIBLE
614 ? n_reproducible_name
: ok_vlook(version
)));
615 n_folder_announce(n_ANNOUNCE_MAIN_CALL
| n_ANNOUNCE_CHANGE
);
616 safe_signal(SIGINT
, prevint
);
619 /* Enter the command loop */
620 if(n_psonce
& n_PSO_INTERACTIVE
)
623 if(n_psonce
& n_PSO_INTERACTIVE
)
624 n_tty_destroy((n_psonce
& n_PSO_XIT
) != 0);
626 if(!(n_psonce
& n_PSO_XIT
)){
627 if(mb
.mb_type
== MB_FILE
|| mb
.mb_type
== MB_MAILDIR
){
628 safe_signal(SIGHUP
, SIG_IGN
);
629 safe_signal(SIGINT
, SIG_IGN
);
630 safe_signal(SIGQUIT
, SIG_IGN
);
633 save_mbox_for_possible_quitstuff();
638 return n_exit_status
;
642 a_main_hdrstop(int signo
){
643 NYD_X
; /* Signal handler */
647 n_err_sighdl(_("\nInterrupt\n"));
648 siglongjmp(a_main__hdrjmp
, 1);
652 main(int argc
, char *argv
[]){
653 /* TODO Once v15 control flow/carrier rewrite took place main() should
654 * TODO be rewritten and option parsing++ should be outsourced.
655 * TODO Like so we can get rid of some stack locals etc. */
656 /* Keep in SYNC: ./nail.1:"SYNOPSIS, main() */
657 static char const optstr
[] =
658 "A:a:Bb:C:c:DdEeFfHhiL:M:m:NnO:q:Rr:S:s:tu:VvX:::~#.";
666 a_RF_ALL
= a_RF_SYSTEM
| a_RF_USER
668 size_t Xargs_size
, Xargs_cnt
, smopts_size
;
669 char const *Aarg
, *emsg
, *folder
, *Larg
, *okey
, *qf
,
670 *subject
, *uarg
, **Xargs
;
671 struct attachment
*attach
;
672 struct name
*to
, *cc
, *bcc
;
673 struct a_arg
*a_head
, *a_curr
;
677 n_UNINIT(a_curr
, NULL
);
678 to
= cc
= bcc
= NULL
;
680 Aarg
= emsg
= folder
= Larg
= okey
= qf
= subject
= uarg
= NULL
;
682 Xargs_size
= Xargs_cnt
= smopts_size
= 0;
686 * Start our lengthy setup, finalize by setting n_PSO_STARTED
689 n_progname
= argv
[0];
692 /* Command line parsing
693 * -S variable settings need to be done twice, since the user surely wants
694 * the setting to take effect immediately, but also doesn't want it to be
695 * overwritten from within resource files */
696 while((i
= a_main_getopt(argc
, argv
, optstr
)) >= 0){
699 /* Execute an account command later on */
703 /* Add an attachment */
706 n_psonce
|= n_PSO_SENDMODE
;
707 nap
= n_autorec_alloc(sizeof(struct a_arg
));
711 a_curr
->aa_next
= nap
;
713 nap
->aa_file
= a_main_oarg
;
717 n_OBSOLETE(_("-B is obsolete, please use -# as necessary"));
720 /* Add (a) blind carbon copy recipient (list) */
721 n_psonce
|= n_PSO_SENDMODE
;
722 bcc
= cat(bcc
, lextract(a_main_oarg
, GBCC
| GFULL
));
725 /* Create custom header (at list tail) */
726 struct n_header_field
**hflpp
;
728 if(*(hflpp
= &n_poption_arg_C
) != NULL
){
729 while((*hflpp
)->hf_next
!= NULL
)
730 *hflpp
= (*hflpp
)->hf_next
;
731 hflpp
= &(*hflpp
)->hf_next
;
733 if(!n_header_add_custom(hflpp
, a_main_oarg
, FAL0
)){
734 emsg
= N_("Invalid custom header data with -C");
739 /* Add (a) carbon copy recipient (list) */
740 n_psonce
|= n_PSO_SENDMODE
;
741 cc
= cat(cc
, lextract(a_main_oarg
, GCC
| GFULL
));
745 ok_bset(disconnected
);
752 ok_bset(skipemptybody
);
755 /* Check if mail (matching -L) exists in given box, exit status */
756 n_poption
|= n_PO_EXISTONLY
;
759 /* Save msg in file named after local part of first recipient */
760 n_poption
|= n_PO_F_FLAG
;
761 n_psonce
|= n_PSO_SENDMODE
;
764 /* User is specifying file to "edit" with Mail, as opposed to reading
765 * system mailbox. If no argument is given, we read his mbox file.
766 * Check for remaining arguments later */
770 /* Display summary of headers, exit */
771 n_poption
|= n_PO_HEADERSONLY
;
774 a_main_usage(n_stdout
);
777 /* Ignore interrupts */
781 /* Display summary of headers which match given spec, exit.
782 * In conjunction with -e, only test the given spec for existence */
784 n_poption
|= n_PO_HEADERLIST
;
785 if(*Larg
== '"' || *Larg
== '\''){ /* TODO list.c:listspec_check() */
790 cp
= savestrbuf(Larg
, --j
);
796 /* Flag message body (standard input) with given MIME type */
797 if(qf
!= NULL
&& (!(n_poption
& n_PO_Mm_FLAG
) || qf
!= (char*)-1))
799 n_poption_arg_Mm
= a_main_oarg
;
804 /* Flag the given file with MIME type and use as message body */
805 if(qf
!= NULL
&& (!(n_poption
& n_PO_Mm_FLAG
) || qf
== (char*)-1))
809 n_poption
|= n_PO_Mm_FLAG
;
810 n_psonce
|= n_PSO_SENDMODE
;
813 /* Avoid initial header printing */
817 /* Don't source "unspecified system start-up file" */
818 if(resfiles
& a_RF_SET
){
819 emsg
= N_("-n cannot be used in conjunction with -:");
822 resfiles
= a_RF_USER
;
825 /* Additional options to pass-through to MTA TODO v15-compat legacy */
826 if(n_smopts_cnt
== smopts_size
)
827 smopts_size
= a_main_grow_cpp(&n_smopts
, smopts_size
+ 8,
829 n_smopts
[n_smopts_cnt
++] = a_main_oarg
;
832 /* "Quote" file: use as message body (-t without headers etc.) */
833 /* XXX Traditional. Add -Q to initialize as *quote*d content? */
834 if(qf
!= NULL
&& (n_poption
& n_PO_Mm_FLAG
)){
836 emsg
= N_("Only one of -M, -m or -q may be given");
839 n_psonce
|= n_PSO_SENDMODE
;
840 /* Allow for now, we have to special check validity of -q- later on! */
841 qf
= (a_main_oarg
[0] == '-' && a_main_oarg
[1] == '\0')
842 ? (char*)-1 : a_main_oarg
;
845 /* Open folders read-only */
846 n_poption
|= n_PO_R_FLAG
;
849 /* Set From address. */
850 n_poption
|= n_PO_r_FLAG
;
851 if(a_main_oarg
[0] == '\0')
856 fa
= nalloc(a_main_oarg
, GSKIN
| GFULL
| GFULLEXTRA
);
857 if(is_addr_invalid(fa
, EACM_STRICT
| EACM_NOLOG
)){
858 emsg
= N_("Invalid address argument with -r");
861 n_poption_arg_r
= fa
;
862 /* TODO -r options is set in n_smopts, but may
863 * TODO be overwritten by setting from= in
864 * TODO an interactive session!
865 * TODO Maybe disable setting of from?
866 * TODO Warn user? Update manual!! */
867 a_main_oarg
= savecat("from=", fa
->n_fullname
);
872 struct n_string s
, *sp
;
876 if(!ok_blook(v15_compat
)){
877 okey
= a
[0] = a_main_oarg
;
880 enum n_shexp_state shs
;
882 n_autorec_relax_create();
883 sp
= n_string_creat_auto(&s
);
884 sin
.s
= n_UNCONST(a_main_oarg
);
886 shs
= n_shexp_parse_token((n_SHEXP_PARSE_LOG
|
887 n_SHEXP_PARSE_IGNORE_EMPTY
|
888 n_SHEXP_PARSE_QUOTE_AUTO_FIXED
|
889 n_SHEXP_PARSE_QUOTE_AUTO_DSQ
), sp
, &sin
, NULL
);
890 if((shs
& n_SHEXP_STATE_ERR_MASK
) ||
891 !(shs
& n_SHEXP_STATE_STOP
)){
892 n_autorec_relax_gut();
895 okey
= a
[0] = n_string_cp_const(sp
);
899 n_poption
|= n_PO_S_FLAG_TEMPORARY
;
900 n_pstate
|= n_PS_ROBOT
;
902 n_pstate
&= ~n_PS_ROBOT
;
903 n_poption
&= ~n_PO_S_FLAG_TEMPORARY
;
906 n_autorec_relax_gut();
907 if(!b
&& (ok_blook(errexit
) || ok_blook(posix
))){
909 emsg
= N_("-S failed to set variable");
915 /* Subject:; take care for Debian #419840 and strip any \r and \n */
916 if(n_anyof_cp("\n\r", subject
= a_main_oarg
)){
917 n_err(_("-s: normalizing away invalid ASCII NL / CR bytes\n"));
918 for(subject
= cp
= savestr(a_main_oarg
); *cp
!= '\0'; ++cp
)
919 if(*cp
== '\n' || *cp
== '\r')
922 n_psonce
|= n_PSO_SENDMODE
;
925 /* Use the given message as send template */
926 n_poption
|= n_PO_t_FLAG
;
927 n_psonce
|= n_PSO_SENDMODE
;
930 /* Open primary mailbox of the given user */
931 uarg
= savecat("%", a_main_oarg
);
934 fprintf(n_stdout
, _("%s version %s\n"), n_uagent
, ok_vlook(version
));
935 n_exit_status
= n_EXIT_OK
;
942 /* Add to list of commands to exec before entering normal operation */
943 if(Xargs_cnt
== Xargs_size
)
944 Xargs_size
= a_main_grow_cpp(&Xargs
, Xargs_size
+ 8, Xargs_cnt
);
945 Xargs
[Xargs_cnt
++] = a_main_oarg
;
948 /* Control which resource files shall be loaded */
949 if(!(resfiles
& (a_RF_SET
| a_RF_SYSTEM
))){
950 emsg
= N_("-n cannot be used in conjunction with -:");
954 while((i
= *a_main_oarg
++) != '\0')
956 case 'S': case 's': resfiles
|= a_RF_SYSTEM
; break;
957 case 'U': case 'u': resfiles
|= a_RF_USER
; break;
958 case ':': case '/': resfiles
&= ~a_RF_ALL
; break;
960 emsg
= N_("Invalid argument of -:");
965 /* Enable command escapes even in non-interactive mode */
966 n_poption
|= n_PO_TILDE_FLAG
;
969 /* Work in batch mode, even if non-interactive */
970 if(!(n_psonce
& n_PSO_INTERACTIVE
))
971 setvbuf(n_stdin
, NULL
, _IOLBF
, 0);
972 n_poption
|= n_PO_TILDE_FLAG
| n_PO_BATCH_FLAG
;
973 folder
= n_path_devnull
;
974 n_pstate
|= n_PS_ROBOT
; /* (be silent unsetting undefined variables) */
975 ok_vset(MAIL
, folder
);
976 ok_vset(MBOX
, folder
);
980 ok_vset(inbox
, folder
);
984 ok_bset(typescript_mode
);
985 n_pstate
&= ~n_PS_ROBOT
;
988 /* Enforce send mode */
989 n_psonce
|= n_PSO_SENDMODE
;
994 n_err("%s\n", V_(emsg
));
995 a_main_usage(n_stderr
);
996 n_exit_status
= n_EXIT_USE
;
1003 /* The normal arguments may be followed by MTA arguments after a "--";
1004 * however, -f may take off an argument, too, and before that.
1005 * Since MTA arguments after "--" require *expandargv*, delay parsing off
1006 * those options until after the resource files are loaded... */
1007 if((cp
= argv
[i
= a_main_oind
]) == NULL
)
1009 else if(cp
[0] == '-' && cp
[1] == '-' && cp
[2] == '\0')
1011 /* n_PO_BATCH_FLAG sets to /dev/null, but -f can still be used and sets & */
1012 else if(folder
!= NULL
&& /*folder[0] == '&' &&*/ folder
[1] == '\0'){
1014 if((cp
= argv
[++i
]) != NULL
){
1015 if(cp
[0] != '-' || cp
[1] != '-' || cp
[2] != '\0'){
1016 emsg
= N_("More than one file given with -f");
1022 n_psonce
|= n_PSO_SENDMODE
;
1024 to
= cat(to
, lextract(cp
, GTO
| GFULL
));
1025 if((cp
= argv
[++i
]) == NULL
)
1027 if(cp
[0] == '-' && cp
[1] == '-' && cp
[2] == '\0'){
1035 /* ...BUT, since we use n_autorec_alloc() for the MTA n_smopts storage we
1036 * need to allocate the space for them before we fixate that storage! */
1037 while(argv
[i
] != NULL
)
1039 if(n_smopts_cnt
+ i
> smopts_size
)
1041 a_main_grow_cpp(&n_smopts
, n_smopts_cnt
+ i
+ 1, n_smopts_cnt
);
1043 /* Check for inconsistent arguments, fix some temporaries */
1044 if(n_psonce
& n_PSO_SENDMODE
){
1045 /* XXX This is only because BATCH_FLAG sets *folder*=/dev/null
1046 * XXX in order to function. Ideally that would not be needed */
1047 if(folder
!= NULL
&& !(n_poption
& n_PO_BATCH_FLAG
)){
1048 emsg
= N_("Cannot give -f and people to send to.");
1052 emsg
= N_("The -u option cannot be used in send mode");
1055 if(!(n_poption
& n_PO_t_FLAG
) && to
== NULL
){
1056 emsg
= N_("Send options without primary recipient specified.");
1059 if((n_poption
& n_PO_t_FLAG
) && qf
!= NULL
){
1060 emsg
= N_("The -M, -m, -q and -t options are mutual exclusive.");
1063 if(n_poption
& (n_PO_EXISTONLY
| n_PO_HEADERSONLY
| n_PO_HEADERLIST
)){
1064 emsg
= N_("The -e, -H and -L options cannot be used in send mode.");
1067 if(n_poption
& n_PO_R_FLAG
){
1068 emsg
= N_("The -R option is meaningless in send mode.");
1072 if(n_psonce
& n_PSO_INTERACTIVE
){
1073 if(qf
== (char*)-1){
1074 if(!(n_poption
& n_PO_Mm_FLAG
))
1075 emsg
= N_("-q can't use standard input when interactive.\n");
1080 if(uarg
!= NULL
&& folder
!= NULL
){
1081 emsg
= N_("The options -u and -f (and -#) are mutually exclusive");
1084 if((n_poption
& (n_PO_EXISTONLY
| n_PO_HEADERSONLY
)) ==
1085 (n_PO_EXISTONLY
| n_PO_HEADERSONLY
)){
1086 emsg
= N_("The options -e and -H are mutual exclusive");
1089 if((n_poption
& (n_PO_HEADERSONLY
| n_PO_HEADERLIST
) /* TODO OBSOLETE */
1090 ) == (n_PO_HEADERSONLY
| n_PO_HEADERLIST
))
1091 n_OBSOLETE(_("please use \"-e -L xy\" instead of \"-H -L xy\""));
1098 * We have reached our second program state, the command line options have
1099 * been worked and verified a bit, we are likely to go, perform more setup
1101 n_psonce
|= n_PSO_STARTED_GETOPT
;
1103 a_main_setup_vars();
1105 /* Create memory pool snapshot; Memory is auto-reclaimed from now on */
1106 n_memory_pool_fixate();
1108 /* load() any resource files */
1109 if(resfiles
& a_RF_ALL
){
1110 /* *expand() returns a savestr(), but load() only uses the file name
1111 * for fopen(), so it is safe to do this */
1112 if(resfiles
& a_RF_SYSTEM
){
1115 if((nload
= ok_blook(NAIL_NO_SYSTEM_RC
)))
1116 n_OBSOLETE(_("Please use $MAILX_NO_SYSTEM_RC instead of "
1117 "$NAIL_NO_SYSTEM_RC"));
1118 if(!nload
&& !ok_blook(MAILX_NO_SYSTEM_RC
) &&
1119 !n_go_load(ok_vlook(system_mailrc
)))
1123 if((resfiles
& a_RF_USER
) &&
1124 !n_go_load(fexpand(ok_vlook(MAILRC
), FEXP_LOCAL
| FEXP_NOPROTO
)))
1127 if((cp
= ok_vlook(NAIL_EXTRA_RC
)) != NULL
)
1128 n_OBSOLETE(_("Please use *mailx-extra-rc*, not *NAIL_EXTRA_RC*"));
1129 if((cp
!= NULL
|| (cp
= ok_vlook(mailx_extra_rc
)) != NULL
) &&
1130 !n_go_load(fexpand(cp
, FEXP_LOCAL
| FEXP_NOPROTO
)))
1134 /* Cause possible umask(2) to be applied, now that any setting is
1135 * established, and before we change accounts, evaluate commands etc. */
1136 (void)ok_vlook(umask
);
1138 /* Additional options to pass-through to MTA, and allowed to do so? */
1140 if((cp
= ok_vlook(expandargv
)) != NULL
){
1141 bool_t isfail
, isrestrict
;
1143 isfail
= !asccasecmp(cp
, "fail");
1144 isrestrict
= (!isfail
&& !asccasecmp(cp
, "restrict"));
1146 if((n_poption
& n_PO_D_V
) && !isfail
&& !isrestrict
&& *cp
!= '\0')
1147 n_err(_("Unknown *expandargv* value: %s\n"), cp
);
1149 if((cp
= argv
[i
]) != NULL
){
1150 if(isfail
|| (isrestrict
&& (!(n_poption
& n_PO_TILDE_FLAG
) ||
1151 !(n_psonce
& n_PSO_INTERACTIVE
)))){
1153 n_err(_("*expandargv* doesn't allow MTA arguments; consider "
1154 "using *mta-arguments*\n"));
1155 n_exit_status
= n_EXIT_USE
| n_EXIT_SEND_ERROR
;
1159 assert(n_smopts_cnt
+ 1 <= smopts_size
);
1160 n_smopts
[n_smopts_cnt
++] = cp
;
1161 }while((cp
= argv
[++i
]) != NULL
);
1163 }else if(argv
[i
] != NULL
)
1166 /* We had to wait until the resource files are loaded and any command line
1167 * setting has been restored, but get the termcap up and going before we
1168 * switch account or running commands */
1170 if((n_psonce
& n_PSO_INTERACTIVE
) && !(n_poption
& n_PO_QUICKRUN_MASK
))
1174 /* Now we can set the account */
1180 if(c_account(a
) && (!(n_psonce
& n_PSO_INTERACTIVE
) ||
1181 ok_blook(errexit
) || ok_blook(posix
))){
1182 n_exit_status
= n_EXIT_USE
| n_EXIT_SEND_ERROR
;
1188 * Almost setup, only -X commands are missing!
1190 n_psonce
|= n_PSO_STARTED_CONFIG
;
1192 /* "load()" commands given on command line */
1194 if(!n_go_Xargs(Xargs
, Xargs_cnt
))
1199 if(n_poption
& n_PO_Mm_FLAG
){
1200 if(qf
== (char*)-1){
1201 if(!n_mimetype_check_mtname(n_poption_arg_Mm
)){
1202 n_err(_("Could not find `mimetype' for -M argument: %s\n"),
1204 n_exit_status
= n_EXIT_ERR
;
1207 }else if((n_poption_arg_Mm
= n_mimetype_classify_filename(qf
)) == NULL
){
1208 n_err(_("Could not `mimetype'-classify -m argument: %s\n"),
1209 n_shexp_quote_cp(qf
, FAL0
));
1210 n_exit_status
= n_EXIT_ERR
;
1212 }else if(!asccasecmp(n_poption_arg_Mm
, "text/plain")) /* TODO no: magic */
1213 n_poption_arg_Mm
= NULL
;
1217 * We're finally completely setup and ready to go!
1219 n_psonce
|= n_PSO_STARTED
;
1221 if(!(n_psonce
& n_PSO_SENDMODE
))
1222 n_exit_status
= a_main_rcv_mode(folder
, Larg
);
1224 /* Now that full mailx(1)-style file expansion is possible handle the
1225 * attachments which we had delayed due to this.
1226 * This may use savestr(), but since we won't enter the command loop we
1227 * don't need to care about that */
1228 for(; a_head
!= NULL
; a_head
= a_head
->aa_next
){
1229 enum n_attach_error aerr
;
1231 attach
= n_attachment_append(attach
, a_head
->aa_file
, &aerr
, NULL
);
1232 if(aerr
!= n_ATTACH_ERR_NONE
){
1233 n_exit_status
= n_EXIT_ERR
;
1238 if(n_psonce
& n_PSO_INTERACTIVE
)
1240 mail(to
, cc
, bcc
, subject
, attach
, qf
, ((n_poption
& n_PO_F_FLAG
) != 0));
1241 if(n_psonce
& n_PSO_INTERACTIVE
)
1242 n_tty_destroy((n_psonce
& n_PSO_XIT
) != 0);
1246 /* Be aware of identical code for `exit' command! */
1248 if((n_psonce
& n_PSO_INTERACTIVE
) && !(n_poption
& n_PO_QUICKRUN_MASK
))
1249 n_termcap_destroy();
1253 #if defined HAVE_MEMORY_DEBUG || defined HAVE_NOMEMDBG
1254 n_memory_pool_pop(NULL
);
1256 #if defined HAVE_DEBUG || defined HAVE_DEVEL || defined HAVE_NOMEMDBG
1260 return n_exit_status
;
1263 /* Source the others in that case! */
1264 #ifdef HAVE_AMALGAMATION
1265 # include <mk-config.h>