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
;
60 VL
char const n_error
[sizeof n_ERROR
] = N_(n_ERROR
);
61 VL
char const n_path_devnull
[sizeof n_PATH_DEVNULL
] = n_PATH_DEVNULL
;
62 VL
char const n_reproducible_name
[sizeof "reproducible_build"] =
64 VL
char const n_unirepl
[sizeof n_UNIREPL
] = n_UNIREPL
;
65 VL
char const n_empty
[1] = "";
66 VL
char const n_0
[2] = "0";
67 VL
char const n_1
[2] = "1";
68 VL
char const n_m1
[3] = "-1";
69 VL
char const n_qm
[2] = "?";
70 VL
char const n_em
[2] = "!";
71 VL
char const n_star
[2] = "*";
72 VL
char const n_at
[2] = "@";
73 VL
char const n_ns
[2] = "#";
74 VL ui16_t
const n_class_char
[1 + 0x7F] = {
75 #define a_BC C_BLANK | C_CNTRL
76 #define a_SC C_SPACE | C_CNTRL
77 #define a_WC C_WHITE | C_CNTRL
78 /* 000 nul 001 soh 002 stx 003 etx 004 eot 005 enq 006 ack 007 bel */
79 C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
,
80 /* 010 bs 011 ht 012 nl 013 vt 014 np 015 cr 016 so 017 si */
81 C_CNTRL
, a_BC
, a_WC
, a_SC
, a_SC
, a_SC
, C_CNTRL
, C_CNTRL
,
82 /* 020 dle 021 dc1 022 dc2 023 dc3 024 dc4 025 nak 026 syn 027 etb */
83 C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
,
84 /* 030 can 031 em 032 sub 033 esc 034 fs 035 gs 036 rs 037 us */
85 C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
, C_CNTRL
,
89 /* 040 sp 041 ! 042 " 043 # 044 $ 045 % 046 & 047 ' */
90 C_BLANK
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
91 /* 050 ( 051 ) 052 * 053 + 054 , 055 - 056 . 057 / */
92 C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
93 /* 060 0 061 1 062 2 063 3 064 4 065 5 066 6 067 7 */
94 C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
, C_OCTAL
,
95 /* 070 8 071 9 072 : 073 ; 074 < 075 = 076 > 077 ? */
96 C_DIGIT
, C_DIGIT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
97 /* 100 @ 101 A 102 B 103 C 104 D 105 E 106 F 107 G */
98 C_PUNCT
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
,
99 /* 110 H 111 I 112 J 113 K 114 L 115 M 116 N 117 O */
100 C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
,
101 /* 120 P 121 Q 122 R 123 S 124 T 125 U 126 V 127 W */
102 C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
, C_UPPER
,
103 /* 130 X 131 Y 132 Z 133 [ 134 \ 135 ] 136 ^ 137 _ */
104 C_UPPER
, C_UPPER
, C_UPPER
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
,
105 /* 140 ` 141 a 142 b 143 c 144 d 145 e 146 f 147 g */
106 C_PUNCT
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
,
107 /* 150 h 151 i 152 j 153 k 154 l 155 m 156 n 157 o */
108 C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
,
109 /* 160 p 161 q 162 r 163 s 164 t 165 u 166 v 167 w */
110 C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
, C_LOWER
,
111 /* 170 x 171 y 172 z 173 { 174 | 175 } 176 ~ 177 del */
112 C_LOWER
, C_LOWER
, C_LOWER
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_PUNCT
, C_CNTRL
115 /* Our own little getopt(3) */
116 static char const *a_main_oarg
;
117 static int a_main_oind
, /*_oerr,*/ a_main_oopt
;
119 /* Our own little getopt(3); note --help is special-treated as 'h' */
120 static int a_main_getopt(int argc
, char * const argv
[], char const *optstring
);
123 static void a_main_usage(FILE *fp
);
125 /* Perform basic startup initialization */
126 static void a_main_startup(void);
129 static size_t a_main_grow_cpp(char const ***cpp
, size_t newsize
, size_t oldcnt
);
131 /* Setup some variables which we require to be valid / verified */
132 static void a_main_setup_vars(void);
134 /* We're in an interactive session - compute what the screen size for printing
135 * headers etc. should be; notify tty upon resize if *is_sighdl* is not 0.
136 * We use the following algorithm for the height:
137 * If baud rate < 1200, use 9
138 * If baud rate = 1200, use 14
139 * If baud rate > 1200, use 24 or ws_row
140 * Width is either 80 or ws_col */
141 static void a_main_setscreensize(int is_sighdl
);
143 /* Ok, we are reading mail. Decide whether we are editing a mailbox or reading
144 * the system mailbox, and open up the right stuff */
145 static int a_main_rcv_mode(char const *folder
, char const *Larg
);
147 /* Interrupt printing of the headers */
148 static void a_main_hdrstop(int signo
);
151 a_main_getopt(int argc
, char * const argv
[], char const *optstring
){
152 static char const *lastp
;
160 /*if((colon = (optstring[0] == ':')))
167 if(a_main_oind
>= argc
|| argv
[a_main_oind
] == NULL
||
168 argv
[a_main_oind
][0] != '-' || argv
[a_main_oind
][1] == '\0')
170 if(argv
[a_main_oind
][1] == '-' && argv
[a_main_oind
][2] == '\0'){
171 /* We need this in for MTA arg detection (easier) ++a_main_oind;*/
174 curp
= &argv
[a_main_oind
][1];
177 for(a_main_oopt
= curp
[0]; optstring
[0] != '\0';){
178 if(optstring
[0] != a_main_oopt
){
179 optstring
+= 1 + (optstring
[1] == ':');
183 if(optstring
[1] == ':'){
185 a_main_oarg
= n_UNCONST(curp
+ 1);
188 if((a_main_oind
+= 2) > argc
){
189 /*if(!colon *//*&& _oerr*//*)*/{
190 n_err(_("%s: option requires an argument -- %c\n"),
191 argv
[0], (char)a_main_oopt
);
193 rv
= (/*colon ? ':' :*/ '?');
196 a_main_oarg
= argv
[a_main_oind
- 1];
208 /* Special support for --help, which is quite common */
209 if(a_main_oopt
== '-' && !strcmp(curp
, "-help") &&
210 &curp
[-1] == argv
[a_main_oind
]){
216 /* Definitive error */
217 /*if(!colon *//*&& opterr*//*)*/
218 n_err(_("%s: invalid option -- %c\n"), argv
[0], a_main_oopt
);
231 a_main_usage(FILE *fp
){
232 /* Stay in 24 lines */
237 i
= strlen(n_progname
);
238 i
= n_MIN(i
, sizeof(buf
) -1);
243 fprintf(fp
, _("%s (%s %s): send and receive Internet mail\n"),
244 n_progname
, n_uagent
, ok_vlook(version
));
246 "Send-only mode: send mail \"to-address\" receiver(s):\n"
247 " %s [-BdEFinv~#] [-: spec] [-A account] [:-C \"custom: header\":]\n"
248 " %s [:-a attachment:] [:-b bcc-address:]\n"
249 " %s [:-c cc-address:] [-M type | -m file | -q file | -t]\n"
250 " %s [-r from-address] [:-S var[=value]:] [-s subject] [:-X cmd:]\n"
251 " %s [-.] :to-address: [-- :mta-option:]\n"),
252 n_progname
, buf
, buf
, buf
, buf
);
254 "\"Receive\" mode, starting on -u user, primary *inbox* or [$MAIL]:\n"
255 " %s [-BdEeHiNnRv~#] [-: spec] [-A account] [:-C \"custom: header\":]\n"
256 " %s [-L spec] [-r from-address] [:-S var[=value]:]\n"
257 " %s [-u user] [:-X cmd:] [-- :mta-option:]\n"),
258 n_progname
, buf
, buf
);
260 "\"Receive\" mode, starting on -f (secondary $MBOX or [file]):\n"
261 " %s [-BdEeHiNnRv~#] [-: spec] [-A account] [:-C \"custom: header\":]\n"
262 " %s -f [-L spec] [-r from-address] [:-S var[=value]:]\n"
263 " %s [:-X cmd:] [file] [-- :mta-option:]\n"),
264 n_progname
, buf
, buf
);
269 ". -d sandbox, -:/ no .rc files, -. end options and force send-mode\n"
270 ". -a attachment[=input-charset[#output-charset]]\n"
271 ". -b, -c, to-address, (-r): ex@am.ple or '(Lovely) Ex <am@p.le>'\n"
272 ". -[Mmqt]: special input data (-t: template message on stdin)\n"
273 ". -e only mail check, -H header summary; both: specification via -L\n"
274 ". -S sets variables, -X executes commands, -# enters batch mode\n"
275 ". Features: \"$ %s -Xversion -Xx\", WWW: %s\n"
276 ". Bugs to/Mail contact: \"$ %s %s\"\n"),
277 n_progname
, ok_vlook(contact_web
), n_progname
, ok_vlook(contact_mail
));
282 a_main_startup(void){
291 a_main_oind
= /*_oerr =*/ 1;
293 if((cp
= strrchr(n_progname
, '/')) != NULL
)
297 safe_signal(SIGABRT
, &_nyd_oncrash
);
299 safe_signal(SIGBUS
, &_nyd_oncrash
);
301 safe_signal(SIGFPE
, &_nyd_oncrash
);
302 safe_signal(SIGILL
, &_nyd_oncrash
);
303 safe_signal(SIGSEGV
, &_nyd_oncrash
);
306 /* Initialize our input, loop and command machinery */
309 /* Set up a reasonable environment */
311 /* TODO This is wrong: interactive is STDIN/STDERR for a POSIX sh(1).
312 * TODO For now we get this wrong, all over the place, as this software
313 * TODO has always been developed with stdout as an output channel.
314 * TODO Start doing it right for at least explicit terminal-related things,
315 * TODO but v15 should use ONLY this, also for terminal input! */
316 if(isatty(STDIN_FILENO
)){
317 n_psonce
|= n_PSO_TTYIN
;
318 #if defined HAVE_MLE || defined HAVE_TERMCAP
319 if((n_tty_fp
= fdopen(fileno(n_stdin
), "w")) != NULL
)
320 setvbuf(n_tty_fp
, NULL
, _IOLBF
, 0);
323 if(isatty(STDOUT_FILENO
))
324 n_psonce
|= n_PSO_TTYOUT
;
325 if((n_psonce
& (n_PSO_TTYIN
| n_PSO_TTYOUT
)) ==
326 (n_PSO_TTYIN
| n_PSO_TTYOUT
)){
327 n_psonce
|= n_PSO_INTERACTIVE
;
328 safe_signal(SIGPIPE
, dflpipe
= SIG_IGN
);
331 /* STDOUT is always line buffered from our point of view */
332 setvbuf(n_stdout
, NULL
, _IOLBF
, 0);
338 /* We need the endianess, runtime detected due to OPT_CROSS_BUILD */
340 union {ui16_t bom
; ui8_t buf
[2];} volatile u
;
343 if(u
.buf
[1] != 0xFEu
)
344 n_psonce
|= n_PSO_BIG_ENDIAN
;
350 iconvd
= (iconv_t
)-1;
353 /* Ensure some variables get loaded and/or verified */
355 (void)ok_blook(POSIXLY_CORRECT
);
360 a_main_grow_cpp(char const ***cpp
, size_t newsize
, size_t oldcnt
){
361 /* Just use auto-reclaimed storage, it will be preserved */
365 newcpp
= n_autorec_alloc(sizeof(char*) * (newsize
+ 1));
368 memcpy(newcpp
, *cpp
, oldcnt
* sizeof(char*));
375 a_main_setup_vars(void){
376 struct passwd
*pwuid
;
380 /* Detect, verify and fixate our invoking user (environment) */
381 n_group_id
= getgid();
382 if((pwuid
= getpwuid(n_user_id
= getuid())) == NULL
)
383 n_panic(_("Cannot associate a name with uid %lu"), (ul_i
)n_user_id
);
388 if(!(doenv
= (ep
= ok_vlook(LOGNAME
)) == NULL
) &&
389 (doenv
= (strcmp(pwuid
->pw_name
, ep
) != 0)))
390 n_err(_("Warning: $LOGNAME (%s) not identical to user (%s)!\n"),
393 n_pstate
|= n_PS_ROOT
;
394 ok_vset(LOGNAME
, pwuid
->pw_name
);
395 n_pstate
&= ~n_PS_ROOT
;
399 if((ep
= ok_vlook(USER
)) != NULL
&& strcmp(pwuid
->pw_name
, ep
)){
400 n_err(_("Warning: $USER (%s) not identical to user (%s)!\n"),
402 n_pstate
|= n_PS_ROOT
;
403 ok_vset(USER
, pwuid
->pw_name
);
404 n_pstate
&= ~n_PS_ROOT
;
407 /* XXX myfullname = pw->pw_gecos[OPTIONAL!] -> GUT THAT; TODO pw_shell */
410 /* Ensure some variables get loaded and/or verified.
411 * While doing so, take special care for invocations as root */
413 /* This is not automatized just as $TMPDIR is for the initial setting, since
414 * we have the pwuid at hand and can simply use it! See accmacvar.c! */
415 if(n_user_id
== 0 || (cp
= ok_vlook(HOME
)) == NULL
){
417 n_pstate
|= n_PS_ROOT
;
419 n_pstate
&= ~n_PS_ROOT
;
422 /* Do not honour TMPDIR if root */
424 ok_vset(TMPDIR
, NULL
);
426 (void)ok_vlook(TMPDIR
);
428 /* Are we in a reproducible-builds.org environment?
429 * That special mode bends some settings (again) */
430 if(ok_vlook(SOURCE_DATE_EPOCH
) != NULL
){
431 n_psonce
|= n_PSO_REPRODUCIBLE
;
432 n_pstate
|= n_PS_ROOT
;
433 n_progname
= n_reproducible_name
;
434 ok_vset(LOGNAME
, n_reproducible_name
);
435 /* Do not care about USER at all in this special mode! */
436 n_pstate
&= ~n_PS_ROOT
;
437 cp
= savecat(n_reproducible_name
, ": ");
438 ok_vset(log_prefix
, cp
);
441 if((n_psonce
& n_PSO_INTERACTIVE
) ||
442 ((n_psonce
& (n_PSO_TTYIN
| n_PSO_TTYOUT
)) &&
443 (n_poption
& n_PO_BATCH_FLAG
))){
444 a_main_setscreensize(FAL0
);
445 if(n_psonce
& n_PSO_INTERACTIVE
){
446 /* XXX Yet WINCH after SIGWINCH/SIGCONT, but see POSIX TOSTOP flag */
448 # ifndef TTY_WANTS_SIGWINCH
449 if(safe_signal(SIGWINCH
, SIG_IGN
) != SIG_IGN
)
451 safe_signal(SIGWINCH
, &a_main_setscreensize
);
454 safe_signal(SIGCONT
, &a_main_setscreensize
);
458 n_scrnheight
= n_realscreenheight
= 24, n_scrnwidth
= 80;
463 a_main_setscreensize(int is_sighdl
){/* TODO globl policy; int wraps; minvals! */
465 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
467 #elif defined TIOCGSIZE
472 n_scrnheight
= n_realscreenheight
= n_scrnwidth
= 0;
474 /* (Also) POSIX: LINES and COLUMNS always override. Adjust this
475 * a little bit to be able to honour resizes during our lifetime and
476 * only honour it upon first run; abuse *is_sighdl* as an indicator */
480 if((cp
= ok_vlook(LINES
)) != NULL
){
481 n_idec_ui32_cp(&n_scrnheight
, cp
, 0, NULL
);
482 n_realscreenheight
= n_scrnheight
;
484 if((cp
= ok_vlook(COLUMNS
)) != NULL
)
485 n_idec_ui32_cp(&n_scrnwidth
, cp
, 0, NULL
);
487 if(n_scrnwidth
!= 0 && n_scrnheight
!= 0)
490 /* For batch mode without explicit request, stop now */
491 if(!(n_psonce
& n_PSO_INTERACTIVE
)){
492 n_scrnheight
= n_realscreenheight
= 24;
498 #ifdef HAVE_TCGETWINSIZE
499 if(tcgetwinsize(fileno(n_tty_fp
), &ws
) == -1)
500 ws
.ws_col
= ws
.ws_row
= 0;
501 #elif defined TIOCGWINSZ
502 if(ioctl(fileno(n_tty_fp
), TIOCGWINSZ
, &ws
) == -1)
503 ws
.ws_col
= ws
.ws_row
= 0;
504 #elif defined TIOCGSIZE
505 if(ioctl(fileno(n_tty_fp
), TIOCGSIZE
, &ws
) == -1)
506 ts
.ts_lines
= ts
.ts_cols
= 0;
509 if(n_scrnheight
== 0){
510 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
512 n_scrnheight
= ws
.ws_row
;
513 #elif defined TIOCGSIZE
515 n_scrnheight
= ts
.ts_lines
;
520 ospeed
= ((tcgetattr(fileno(n_tty_fp
), &tbuf
) == -1)
521 ? B9600
: cfgetospeed(&tbuf
));
525 else if(ospeed
== B1200
)
531 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ || defined TIOCGSIZE
533 # if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
534 (n_realscreenheight
= ws
.ws_row
)
536 (n_realscreenheight
= ts
.ts_lines
)
539 n_realscreenheight
= 24;
543 if(n_scrnwidth
== 0 && 0 ==
544 #if defined HAVE_TCGETWINSIZE || defined TIOCGWINSZ
545 (n_scrnwidth
= ws
.ws_col
)
546 #elif defined TIOCGSIZE
547 (n_scrnwidth
= ts
.ts_cols
)
553 n_pstate
|= n_PS_SIGWINCH_PEND
;
558 static sigjmp_buf a_main__hdrjmp
; /* XXX */
561 a_main_rcv_mode(char const *folder
, char const *Larg
){
563 sighandler_type prevint
;
569 else if(*folder
== '@'){
570 /* This must be treated specially to make possible invocation like
571 * -A imap -f @mailbox */
574 cp
= n_folder_query();
575 if(which_protocol(cp
, FAL0
, FAL0
, NULL
) == PROTO_IMAP
)
576 n_strscpy(mailname
, cp
, sizeof mailname
);
580 i
= (n_poption
& n_PO_QUICKRUN_MASK
) ? FEDIT_RDONLY
: FEDIT_NONE
;
581 i
= setfile(folder
, i
);
583 n_exit_status
= n_EXIT_ERR
; /* error already reported */
586 if(n_poption
& n_PO_QUICKRUN_MASK
){
588 if(i
== n_EXIT_OK
&& (!(n_poption
& n_PO_EXISTONLY
) ||
589 (n_poption
& n_PO_HEADERLIST
)))
590 print_header_summary(Larg
);
593 temporary_folder_hook_check(FAL0
);
595 if(i
> 0 && !ok_blook(emptystart
)){
596 n_exit_status
= n_EXIT_ERR
;
600 if(sigsetjmp(a_main__hdrjmp
, 1) == 0){
601 if((prevint
= safe_signal(SIGINT
, SIG_IGN
)) != SIG_IGN
)
602 safe_signal(SIGINT
, &a_main_hdrstop
);
604 fprintf(n_stdout
, _("%s version %s. Type `?' for help\n"),
606 (n_psonce
& n_PSO_REPRODUCIBLE
607 ? n_reproducible_name
: ok_vlook(version
)));
608 n_folder_announce(n_ANNOUNCE_MAIN_CALL
| n_ANNOUNCE_CHANGE
);
609 safe_signal(SIGINT
, prevint
);
612 /* Enter the command loop */
613 if(n_psonce
& n_PSO_INTERACTIVE
)
616 if(n_psonce
& n_PSO_INTERACTIVE
)
617 n_tty_destroy((n_psonce
& n_PSO_XIT
) != 0);
619 if(!(n_psonce
& n_PSO_XIT
)){
620 if(mb
.mb_type
== MB_FILE
|| mb
.mb_type
== MB_MAILDIR
){
621 safe_signal(SIGHUP
, SIG_IGN
);
622 safe_signal(SIGINT
, SIG_IGN
);
623 safe_signal(SIGQUIT
, SIG_IGN
);
626 save_mbox_for_possible_quitstuff();
631 return n_exit_status
;
635 a_main_hdrstop(int signo
){
636 NYD_X
; /* Signal handler */
640 n_err_sighdl(_("\nInterrupt\n"));
641 siglongjmp(a_main__hdrjmp
, 1);
645 main(int argc
, char *argv
[]){
646 /* TODO Once v15 control flow/carrier rewrite took place main() should
647 * TODO be rewritten and option parsing++ should be outsourced.
648 * TODO Like so we can get rid of some stack locals etc. */
649 /* Keep in SYNC: ./nail.1:"SYNOPSIS, main() */
650 static char const optstr
[] =
651 "A:a:Bb:C:c:dEeFfHhiL:M:m:NnO:q:Rr:S:s:tu:VvX:::~#.";
659 a_RF_ALL
= a_RF_SYSTEM
| a_RF_USER
661 size_t Xargs_size
, Xargs_cnt
, smopts_size
;
662 char const *Aarg
, *emsg
, *folder
, *Larg
, *okey
, *qf
,
663 *subject
, *uarg
, **Xargs
;
664 struct attachment
*attach
;
665 struct name
*to
, *cc
, *bcc
;
666 struct a_arg
*a_head
, *a_curr
;
670 n_UNINIT(a_curr
, NULL
);
671 to
= cc
= bcc
= NULL
;
673 Aarg
= emsg
= folder
= Larg
= okey
= qf
= subject
= uarg
= NULL
;
675 Xargs_size
= Xargs_cnt
= smopts_size
= 0;
679 * Start our lengthy setup, finalize by setting n_PSO_STARTED
682 n_progname
= argv
[0];
685 /* Command line parsing
686 * -S variable settings need to be done twice, since the user surely wants
687 * the setting to take effect immediately, but also doesn't want it to be
688 * overwritten from within resource files */
689 while((i
= a_main_getopt(argc
, argv
, optstr
)) >= 0){
692 /* Execute an account command later on */
696 /* Add an attachment */
699 n_psonce
|= n_PSO_SENDMODE
;
700 nap
= n_autorec_alloc(sizeof(struct a_arg
));
704 a_curr
->aa_next
= nap
;
706 nap
->aa_file
= a_main_oarg
;
710 n_OBSOLETE(_("-B is obsolete, please use -# as necessary"));
713 /* Add (a) blind carbon copy recipient (list) */
714 n_psonce
|= n_PSO_SENDMODE
;
715 bcc
= cat(bcc
, lextract(a_main_oarg
, GBCC
| GFULL
));
718 /* Create custom header (at list tail) */
719 struct n_header_field
**hflpp
;
721 if(*(hflpp
= &n_poption_arg_C
) != NULL
){
722 while((*hflpp
)->hf_next
!= NULL
)
723 *hflpp
= (*hflpp
)->hf_next
;
724 hflpp
= &(*hflpp
)->hf_next
;
726 if(!n_header_add_custom(hflpp
, a_main_oarg
, FAL0
)){
727 emsg
= N_("Invalid custom header data with -C");
732 /* Add (a) carbon copy recipient (list) */
733 n_psonce
|= n_PSO_SENDMODE
;
734 cc
= cat(cc
, lextract(a_main_oarg
, GCC
| GFULL
));
740 ok_bset(skipemptybody
);
743 /* Check if mail (matching -L) exists in given box, exit status */
744 n_poption
|= n_PO_EXISTONLY
;
747 /* Save msg in file named after local part of first recipient */
748 n_poption
|= n_PO_F_FLAG
;
749 n_psonce
|= n_PSO_SENDMODE
;
752 /* User is specifying file to "edit" with Mail, as opposed to reading
753 * system mailbox. If no argument is given, we read his mbox file.
754 * Check for remaining arguments later */
758 /* Display summary of headers, exit */
759 n_poption
|= n_PO_HEADERSONLY
;
762 a_main_usage(n_stdout
);
765 /* Ignore interrupts */
769 /* Display summary of headers which match given spec, exit.
770 * In conjunction with -e, only test the given spec for existence */
772 n_poption
|= n_PO_HEADERLIST
;
773 if(*Larg
== '"' || *Larg
== '\''){ /* TODO list.c:listspec_check() */
778 cp
= savestrbuf(Larg
, --j
);
784 /* Flag message body (standard input) with given MIME type */
785 if(qf
!= NULL
&& (!(n_poption
& n_PO_Mm_FLAG
) || qf
!= (char*)-1))
787 n_poption_arg_Mm
= a_main_oarg
;
792 /* Flag the given file with MIME type and use as message body */
793 if(qf
!= NULL
&& (!(n_poption
& n_PO_Mm_FLAG
) || qf
== (char*)-1))
797 n_poption
|= n_PO_Mm_FLAG
;
798 n_psonce
|= n_PSO_SENDMODE
;
801 /* Avoid initial header printing */
805 /* Don't source "unspecified system start-up file" */
806 if(resfiles
& a_RF_SET
){
807 emsg
= N_("-n cannot be used in conjunction with -:");
810 resfiles
= a_RF_USER
;
813 /* Additional options to pass-through to MTA TODO v15-compat legacy */
814 if(n_smopts_cnt
== smopts_size
)
815 smopts_size
= a_main_grow_cpp(&n_smopts
, smopts_size
+ 8,
817 n_smopts
[n_smopts_cnt
++] = a_main_oarg
;
820 /* "Quote" file: use as message body (-t without headers etc.) */
821 /* XXX Traditional. Add -Q to initialize as *quote*d content? */
822 if(qf
!= NULL
&& (n_poption
& n_PO_Mm_FLAG
)){
824 emsg
= N_("Only one of -M, -m or -q may be given");
827 n_psonce
|= n_PSO_SENDMODE
;
828 /* Allow for now, we have to special check validity of -q- later on! */
829 qf
= (a_main_oarg
[0] == '-' && a_main_oarg
[1] == '\0')
830 ? (char*)-1 : a_main_oarg
;
833 /* Open folders read-only */
834 n_poption
|= n_PO_R_FLAG
;
837 /* Set From address. */
838 n_poption
|= n_PO_r_FLAG
;
839 if(a_main_oarg
[0] != '\0'){
842 fa
= nalloc(a_main_oarg
, GSKIN
| GFULL
| GFULLEXTRA
);
843 if(is_addr_invalid(fa
, EACM_STRICT
| EACM_NOLOG
)){
844 emsg
= N_("Invalid address argument with -r");
847 n_poption_arg_r
= fa
;
848 /* TODO -r options is set in n_smopts, but may
849 * TODO be overwritten by setting from= in
850 * TODO an interactive session!
851 * TODO Maybe disable setting of from?
852 * TODO Warn user? Update manual!! */
853 a_main_oarg
= savecat("from=", fa
->n_fullname
);
858 n_poption
|= n_PO_S_FLAG_TEMPORARY
;
859 jsetvar
: /* Set variable TODO optimize v15-compat case */
861 struct n_string s
, *sp
;
865 if(!ok_blook(v15_compat
)){
866 okey
= a
[0] = a_main_oarg
;
869 enum n_shexp_state shs
;
871 n_autorec_relax_create();
872 sp
= n_string_creat_auto(&s
);
873 sin
.s
= n_UNCONST(a_main_oarg
);
875 shs
= n_shexp_parse_token((n_SHEXP_PARSE_LOG
|
876 n_SHEXP_PARSE_IGNORE_EMPTY
|
877 n_SHEXP_PARSE_QUOTE_AUTO_FIXED
|
878 n_SHEXP_PARSE_QUOTE_AUTO_DSQ
), sp
, &sin
, NULL
);
879 if((shs
& n_SHEXP_STATE_ERR_MASK
) ||
880 !(shs
& n_SHEXP_STATE_STOP
)){
881 n_autorec_relax_gut();
884 okey
= a
[0] = n_string_cp_const(sp
);
888 n_pstate
|= n_PS_ROBOT
;
890 n_pstate
&= ~(n_PS_ROOT
| n_PS_ROBOT
);
891 n_poption
&= ~n_PO_S_FLAG_TEMPORARY
;
894 n_autorec_relax_gut();
895 if(!b
&& (ok_blook(errexit
) || ok_blook(posix
))){
897 emsg
= N_("-S failed to set variable");
903 /* Subject:; take care for Debian #419840 and strip any \r and \n */
904 if(n_anyof_cp("\n\r", subject
= a_main_oarg
)){
905 n_err(_("-s: normalizing away invalid ASCII NL / CR bytes\n"));
906 for(subject
= cp
= savestr(a_main_oarg
); *cp
!= '\0'; ++cp
)
907 if(*cp
== '\n' || *cp
== '\r')
910 n_psonce
|= n_PSO_SENDMODE
;
913 /* Use the given message as send template */
914 n_poption
|= n_PO_t_FLAG
;
915 n_psonce
|= n_PSO_SENDMODE
;
918 /* Open primary mailbox of the given user */
919 uarg
= savecat("%", a_main_oarg
);
922 fprintf(n_stdout
, _("%s version %s\n"), n_uagent
, ok_vlook(version
));
923 n_exit_status
= n_EXIT_OK
;
930 /* Add to list of commands to exec before entering normal operation */
931 if(Xargs_cnt
== Xargs_size
)
932 Xargs_size
= a_main_grow_cpp(&Xargs
, Xargs_size
+ 8, Xargs_cnt
);
933 Xargs
[Xargs_cnt
++] = a_main_oarg
;
936 /* Control which resource files shall be loaded */
937 if(!(resfiles
& (a_RF_SET
| a_RF_SYSTEM
))){
938 emsg
= N_("-n cannot be used in conjunction with -:");
942 while((i
= *a_main_oarg
++) != '\0')
944 case 'S': case 's': resfiles
|= a_RF_SYSTEM
; break;
945 case 'U': case 'u': resfiles
|= a_RF_USER
; break;
946 case ':': case '/': resfiles
&= ~a_RF_ALL
; break;
948 emsg
= N_("Invalid argument of -:");
953 /* Enable command escapes even in non-interactive mode */
954 n_poption
|= n_PO_TILDE_FLAG
;
957 /* Work in batch mode, even if non-interactive */
958 if(!(n_psonce
& n_PSO_INTERACTIVE
))
959 setvbuf(n_stdin
, NULL
, _IOLBF
, 0);
960 n_poption
|= n_PO_TILDE_FLAG
| n_PO_BATCH_FLAG
;
961 folder
= n_path_devnull
;
962 n_pstate
|= n_PS_ROBOT
; /* (be silent unsetting undefined variables) */
963 ok_vset(MAIL
, folder
);
964 ok_vset(MBOX
, folder
);
968 ok_vset(inbox
, folder
);
972 ok_bset(typescript_mode
);
973 n_pstate
&= ~n_PS_ROBOT
;
976 /* Enforce send mode */
977 n_psonce
|= n_PSO_SENDMODE
;
982 n_err("%s\n", V_(emsg
));
983 a_main_usage(n_stderr
);
984 n_exit_status
= n_EXIT_USE
;
991 /* The normal arguments may be followed by MTA arguments after a "--";
992 * however, -f may take off an argument, too, and before that.
993 * Since MTA arguments after "--" require *expandargv*, delay parsing off
994 * those options until after the resource files are loaded... */
995 if((cp
= argv
[i
= a_main_oind
]) == NULL
)
997 else if(cp
[0] == '-' && cp
[1] == '-' && cp
[2] == '\0')
999 /* n_PO_BATCH_FLAG sets to /dev/null, but -f can still be used and sets & */
1000 else if(folder
!= NULL
&& /*folder[0] == '&' &&*/ folder
[1] == '\0'){
1002 if((cp
= argv
[++i
]) != NULL
){
1003 if(cp
[0] != '-' || cp
[1] != '-' || cp
[2] != '\0'){
1004 emsg
= N_("More than one file given with -f");
1010 n_psonce
|= n_PSO_SENDMODE
;
1012 to
= cat(to
, lextract(cp
, GTO
| GFULL
));
1013 if((cp
= argv
[++i
]) == NULL
)
1015 if(cp
[0] == '-' && cp
[1] == '-' && cp
[2] == '\0'){
1023 /* ...BUT, since we use n_autorec_alloc() for the MTA n_smopts storage we
1024 * need to allocate the space for them before we fixate that storage! */
1025 while(argv
[i
] != NULL
)
1027 if(n_smopts_cnt
+ i
> smopts_size
)
1029 a_main_grow_cpp(&n_smopts
, n_smopts_cnt
+ i
+ 1, n_smopts_cnt
);
1031 /* Check for inconsistent arguments, fix some temporaries */
1032 if(n_psonce
& n_PSO_SENDMODE
){
1033 /* XXX This is only because BATCH_FLAG sets *folder*=/dev/null
1034 * XXX in order to function. Ideally that would not be needed */
1035 if(folder
!= NULL
&& !(n_poption
& n_PO_BATCH_FLAG
)){
1036 emsg
= N_("Cannot give -f and people to send to.");
1040 emsg
= N_("The -u option cannot be used in send mode");
1043 if(!(n_poption
& n_PO_t_FLAG
) && to
== NULL
){
1044 emsg
= N_("Send options without primary recipient specified.");
1047 if((n_poption
& n_PO_t_FLAG
) && qf
!= NULL
){
1048 emsg
= N_("The -M, -m, -q and -t options are mutual exclusive.");
1051 if(n_poption
& (n_PO_EXISTONLY
| n_PO_HEADERSONLY
| n_PO_HEADERLIST
)){
1052 emsg
= N_("The -e, -H and -L options cannot be used in send mode.");
1055 if(n_poption
& n_PO_R_FLAG
){
1056 emsg
= N_("The -R option is meaningless in send mode.");
1060 if(n_psonce
& n_PSO_INTERACTIVE
){
1061 if(qf
== (char*)-1){
1062 if(!(n_poption
& n_PO_Mm_FLAG
))
1063 emsg
= N_("-q can't use standard input when interactive.\n");
1068 if(uarg
!= NULL
&& folder
!= NULL
){
1069 emsg
= N_("The options -u and -f (and -#) are mutually exclusive");
1072 if((n_poption
& (n_PO_EXISTONLY
| n_PO_HEADERSONLY
)) ==
1073 (n_PO_EXISTONLY
| n_PO_HEADERSONLY
)){
1074 emsg
= N_("The options -e and -H are mutual exclusive");
1077 if((n_poption
& (n_PO_HEADERSONLY
| n_PO_HEADERLIST
) /* TODO OBSOLETE */
1078 ) == (n_PO_HEADERSONLY
| n_PO_HEADERLIST
))
1079 n_OBSOLETE(_("please use \"-e -L xy\" instead of \"-H -L xy\""));
1086 * We have reached our second program state, the command line options have
1087 * been worked and verified a bit, we are likely to go, perform more setup
1089 n_psonce
|= n_PSO_STARTED_GETOPT
;
1091 a_main_setup_vars();
1093 /* Create memory pool snapshot; Memory is auto-reclaimed from now on */
1094 n_memory_pool_fixate();
1096 /* load() any resource files */
1097 if(resfiles
& a_RF_ALL
){
1098 /* *expand() returns a savestr(), but load() only uses the file name
1099 * for fopen(), so it is safe to do this */
1100 if(resfiles
& a_RF_SYSTEM
){
1103 if((nload
= ok_blook(NAIL_NO_SYSTEM_RC
)))
1104 n_OBSOLETE(_("Please use $MAILX_NO_SYSTEM_RC instead of "
1105 "$NAIL_NO_SYSTEM_RC"));
1106 if(!nload
&& !ok_blook(MAILX_NO_SYSTEM_RC
) &&
1107 !n_go_load(VAL_SYSCONFDIR
"/" VAL_SYSCONFRC
))
1111 if((resfiles
& a_RF_USER
) &&
1112 !n_go_load(fexpand(ok_vlook(MAILRC
), FEXP_LOCAL
| FEXP_NOPROTO
)))
1115 if((cp
= ok_vlook(NAIL_EXTRA_RC
)) != NULL
)
1116 n_OBSOLETE(_("Please use *mailx-extra-rc*, not *NAIL_EXTRA_RC*"));
1117 if((cp
!= NULL
|| (cp
= ok_vlook(mailx_extra_rc
)) != NULL
) &&
1118 !n_go_load(fexpand(cp
, FEXP_LOCAL
| FEXP_NOPROTO
)))
1122 /* Cause possible umask(2) to be applied, now that any setting is
1123 * established, and before we change accounts, evaluate commands etc. */
1124 (void)ok_vlook(umask
);
1126 /* Additional options to pass-through to MTA, and allowed to do so? */
1128 if((cp
= ok_vlook(expandargv
)) != NULL
){
1129 bool_t isfail
, isrestrict
;
1131 isfail
= !asccasecmp(cp
, "fail");
1132 isrestrict
= (!isfail
&& !asccasecmp(cp
, "restrict"));
1134 if((n_poption
& n_PO_D_V
) && !isfail
&& !isrestrict
&& *cp
!= '\0')
1135 n_err(_("Unknown *expandargv* value: %s\n"), cp
);
1137 if((cp
= argv
[i
]) != NULL
){
1138 if(isfail
|| (isrestrict
&& (!(n_poption
& n_PO_TILDE_FLAG
) ||
1139 !(n_psonce
& n_PSO_INTERACTIVE
)))){
1141 n_err(_("*expandargv* doesn't allow MTA arguments; consider "
1142 "using *mta-arguments*\n"));
1143 n_exit_status
= n_EXIT_USE
| n_EXIT_SEND_ERROR
;
1147 assert(n_smopts_cnt
+ 1 <= smopts_size
);
1148 n_smopts
[n_smopts_cnt
++] = cp
;
1149 }while((cp
= argv
[++i
]) != NULL
);
1151 }else if(argv
[i
] != NULL
)
1154 /* We had to wait until the resource files are loaded and any command line
1155 * setting has been restored, but get the termcap up and going before we
1156 * switch account or running commands */
1158 if((n_psonce
& n_PSO_INTERACTIVE
) && !(n_poption
& n_PO_QUICKRUN_MASK
))
1162 /* Now we can set the account */
1172 * Almost setup, only -X commands are missing!
1174 n_psonce
|= n_PSO_STARTED_CONFIG
;
1176 /* "load()" commands given on command line */
1178 if(!n_go_Xargs(Xargs
, Xargs_cnt
))
1183 if(n_poption
& n_PO_Mm_FLAG
){
1184 if(qf
== (char*)-1){
1185 if(!n_mimetype_check_mtname(n_poption_arg_Mm
)){
1186 n_err(_("Could not find `mimetype' for -M argument: %s\n"),
1188 n_exit_status
= n_EXIT_ERR
;
1191 }else if((n_poption_arg_Mm
= n_mimetype_classify_filename(qf
)) == NULL
){
1192 n_err(_("Could not `mimetype'-classify -m argument: %s\n"),
1193 n_shexp_quote_cp(qf
, FAL0
));
1194 n_exit_status
= n_EXIT_ERR
;
1196 }else if(!asccasecmp(n_poption_arg_Mm
, "text/plain")) /* TODO no: magic */
1197 n_poption_arg_Mm
= NULL
;
1201 * We're finally completely setup and ready to go!
1203 n_psonce
|= n_PSO_STARTED
;
1205 if(!(n_psonce
& n_PSO_SENDMODE
))
1206 n_exit_status
= a_main_rcv_mode(folder
, Larg
);
1208 /* Now that full mailx(1)-style file expansion is possible handle the
1209 * attachments which we had delayed due to this.
1210 * This may use savestr(), but since we won't enter the command loop we
1211 * don't need to care about that */
1212 for(; a_head
!= NULL
; a_head
= a_head
->aa_next
){
1213 enum n_attach_error aerr
;
1215 attach
= n_attachment_append(attach
, a_head
->aa_file
, &aerr
, NULL
);
1216 if(aerr
!= n_ATTACH_ERR_NONE
){
1217 n_exit_status
= n_EXIT_ERR
;
1222 if(n_psonce
& n_PSO_INTERACTIVE
)
1224 mail(to
, cc
, bcc
, subject
, attach
, qf
, ((n_poption
& n_PO_F_FLAG
) != 0));
1225 if(n_psonce
& n_PSO_INTERACTIVE
)
1226 n_tty_destroy((n_psonce
& n_PSO_XIT
) != 0);
1230 /* Be aware of identical code for `exit' command! */
1232 if((n_psonce
& n_PSO_INTERACTIVE
) && !(n_poption
& n_PO_QUICKRUN_MASK
))
1233 n_termcap_destroy();
1237 #if defined HAVE_MEMORY_DEBUG || defined HAVE_NOMEMDBG
1238 n_memory_pool_pop(NULL
);
1240 #if defined HAVE_DEBUG || defined HAVE_DEVEL || defined HAVE_NOMEMDBG
1244 return n_exit_status
;
1247 /* Source the others in that case! */
1248 #ifdef HAVE_AMALGAMATION
1249 # include <mk-config.h>