2 * Copyright (C) 1996-2002 Michael R. Elkins <me@mutt.org>
3 * Copyright (C) 2004 g10 Code GmbH
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
28 # include <unistd.h> /* needed for SEEK_SET */
31 # include <unix.h> /* needed for snprintf on QNX. */
33 #include <sys/types.h>
42 #if defined(HAVE_WCTYPE_H) && defined(HAVE_WC_FUNCS)
46 #ifndef _POSIX_PATH_MAX
47 #include <posix1_lim.h>
61 # define MB_LEN_MAX 16
65 # define MUTT_VERSION (VERSION SUBVERSION)
67 # define MUTT_VERSION (VERSION)
70 /* nifty trick I stole from ELM 2.5alpha. */
73 #define INITVAL(x) = x
79 #include "mutt_regex.h"
81 /* flags for mutt_copy_header() */
82 #define CH_UPDATE 1 /* update the status and x-status fields? */
83 #define CH_WEED (1<<1) /* weed the headers? */
84 #define CH_DECODE (1<<2) /* do RFC1522 decoding? */
85 #define CH_XMIT (1<<3) /* transmitting this message? */
86 #define CH_FROM (1<<4) /* retain the "From " message separator? */
87 #define CH_PREFIX (1<<5) /* use Prefix string? */
88 #define CH_NOSTATUS (1<<6) /* supress the status and x-status fields */
89 #define CH_REORDER (1<<7) /* Re-order output of headers */
90 #define CH_NONEWLINE (1<<8) /* don't output terminating newline */
91 #define CH_MIME (1<<9) /* ignore MIME fields */
92 #define CH_UPDATE_LEN (1<<10) /* update Lines: and Content-Length: */
93 #define CH_TXTPLAIN (1<<11) /* generate text/plain MIME headers */
94 #define CH_NOLEN (1<<12) /* don't write Content-Length: and Lines: */
95 #define CH_WEED_DELIVERED (1<<13) /* weed eventual Delivered-To headers */
96 #define CH_FORCE_FROM (1<<14) /* give CH_FROM precedence over CH_WEED? */
97 #define CH_NOQFROM (1<<15) /* give CH_FROM precedence over CH_WEED? */
98 #define CH_UPDATE_IRT (1<<16) /* update In-Reply-To: */
99 #define CH_UPDATE_REFS (1<<17) /* update References: */
101 /* flags for mutt_enter_string() */
102 #define M_ALIAS 1 /* do alias "completion" by calling up the alias-menu */
103 #define M_FILE (1<<1) /* do file completion */
104 #define M_EFILE (1<<2) /* do file completion, plus incoming folders */
105 #define M_CMD (1<<3) /* do completion on previous word */
106 #define M_PASS (1<<4) /* password mode (no echo) */
107 #define M_CLEAR (1<<5) /* clear input if printable character is pressed */
108 #define M_COMMAND (1<<6) /* do command completion */
109 #define M_PATTERN (1<<7) /* pattern mode - only used for history classes */
110 #define M_LASTFOLDER (1<<8) /* last-folder mode - hack hack hack */
112 /* flags for mutt_get_token() */
113 #define M_TOKEN_EQUAL 1 /* treat '=' as a special */
114 #define M_TOKEN_CONDENSE (1<<1) /* ^(char) to control chars (macros) */
115 #define M_TOKEN_SPACE (1<<2) /* don't treat whitespace as a term */
116 #define M_TOKEN_QUOTE (1<<3) /* don't interpret quotes */
117 #define M_TOKEN_PATTERN (1<<4) /* !)|~ are terms (for patterns) */
118 #define M_TOKEN_COMMENT (1<<5) /* don't reap comments */
119 #define M_TOKEN_SEMICOLON (1<<6) /* don't treat ; as special */
121 /* flags for km_dokey() */
122 #define M_KM_UNBUFFERED 1 /* don't read from the key buffer */
126 char *data; /* pointer to data */
127 char *dptr; /* current read/write position */
128 size_t dsize; /* length of data */
129 int destroy; /* destroy `data' when done? */
134 int ch; /* raw key pressed */
135 int op; /* function op */
138 /* flags for _mutt_system() */
139 #define M_DETACH_PROCESS 1 /* detach subprocess from group */
141 /* flags for mutt_FormatString() */
144 M_FORMAT_FORCESUBJ = (1<<0), /* print the subject even if unchanged */
145 M_FORMAT_TREE = (1<<1), /* draw the thread tree */
146 M_FORMAT_MAKEPRINT = (1<<2), /* make sure that all chars are printable */
147 M_FORMAT_OPTIONAL = (1<<3),
148 M_FORMAT_STAT_FILE = (1<<4), /* used by mutt_attach_fmt */
149 M_FORMAT_ARROWCURSOR = (1<<5), /* reserve space for arrow_cursor */
150 M_FORMAT_INDEX = (1<<6) /* this is a main index entry */
153 /* types for mutt_add_hook() */
154 #define M_FOLDERHOOK 1
155 #define M_MBOXHOOK (1<<1)
156 #define M_SENDHOOK (1<<2)
157 #define M_FCCHOOK (1<<3)
158 #define M_SAVEHOOK (1<<4)
159 #define M_CHARSETHOOK (1<<5)
160 #define M_ICONVHOOK (1<<6)
161 #define M_MESSAGEHOOK (1<<7)
162 #define M_CRYPTHOOK (1<<8)
163 #define M_ACCOUNTHOOK (1<<9)
164 #define M_REPLYHOOK (1<<10)
165 #define M_SEND2HOOK (1<<11)
167 #ifdef USE_COMPRESSED
168 #define M_OPENHOOK (1<<12)
169 #define M_APPENDHOOK (1<<13)
170 #define M_CLOSEHOOK (1<<14)
173 /* tree characters for linearize_tree and print_enriched_string */
174 #define M_TREE_LLCORNER 1
175 #define M_TREE_ULCORNER 2
176 #define M_TREE_LTEE 3
177 #define M_TREE_HLINE 4
178 #define M_TREE_VLINE 5
179 #define M_TREE_SPACE 6
180 #define M_TREE_RARROW 7
181 #define M_TREE_STAR 8
182 #define M_TREE_HIDDEN 9
183 #define M_TREE_EQUALS 10
184 #define M_TREE_TTEE 11
185 #define M_TREE_BTEE 12
186 #define M_TREE_MISSING 13
187 #define M_TREE_MAX 14
189 #define M_THREAD_COLLAPSE (1<<0)
190 #define M_THREAD_UNCOLLAPSE (1<<1)
191 #define M_THREAD_GET_HIDDEN (1<<2)
192 #define M_THREAD_UNREAD (1<<3)
193 #define M_THREAD_NEXT_UNREAD (1<<4)
197 /* modes for mutt_view_attachment() */
202 /* action codes used by mutt_set_flag() and mutt_pattern_function() */
223 /* actions for mutt_pattern_comp/mutt_pattern_exec */
259 /* Options for Mailcap lookup */
265 /* options for socket code */
271 /* Options for mutt_save_attachment */
276 /* possible arguments to set_quadoption() */
285 /* quad-option vars */
301 OPT_PGPMIMEAUTO, /* ask to revert to PGP/MIME when inline fails */
311 #if defined(USE_SSL) || defined(USE_GNUTLS)
315 OPT_VERIFYSIG, /* verify PGP signatures */
321 OPT_FOLLOWUPTOPOSTER,
322 #endif /* USE_NNTP */
324 /* THIS MUST BE THE LAST VALUE. */
328 /* flags to ci_send_message() */
329 #define SENDREPLY (1<<0)
330 #define SENDGROUPREPLY (1<<1)
331 #define SENDLISTREPLY (1<<2)
332 #define SENDFORWARD (1<<3)
333 #define SENDPOSTPONED (1<<4)
334 #define SENDBATCH (1<<5)
335 #define SENDMAILX (1<<6)
336 #define SENDKEY (1<<7)
337 #define SENDRESEND (1<<8)
338 #define SENDNEWS (1<<9)
340 /* flags to _mutt_select_file() */
341 #define M_SEL_BUFFY (1<<0)
342 #define M_SEL_MULTI (1<<1)
343 #define M_SEL_FOLDER (1<<2)
345 /* flags for parse_spam_list */
393 OPTHIDETHREADSUBJECT,
396 OPTIGNORELISTREPLYTO,
402 # if defined(USE_SSL) || defined(USE_GNUTLS)
406 #if defined(USE_SSL) || defined(USE_NSS) || defined(USE_GNUTLS)
424 OPTMENUSCROLL, /* scroll menu instead of implicit next-page */
426 OPTMETAKEY, /* interpret ALT-x as ESC-x */
431 OPTMIMESUBJECT, /* encode subject line with RFC2047 */
479 #ifdef HAVE_GETADDRINFO
486 OPTWRITEBCC, /* write out a bcc header? */
498 OPTCRYPTREPLYENCRYPT,
500 OPTCRYPTREPLYSIGNENCRYPTED,
504 OPTSDEFAULTDECRYPTKEY,
527 #endif /* USE_NNTP */
531 OPTAUXSORT, /* (pseudo) using auxillary sort function */
532 OPTFORCEREFRESH, /* (pseudo) refresh even during macros */
533 OPTLOCALES, /* (pseudo) set if user has valid locale definition */
534 OPTNOCURSES, /* (pseudo) when sending in batch mode */
535 OPTNEEDREDRAW, /* (pseudo) to notify caller of a submenu */
536 OPTSEARCHREVERSE, /* (pseudo) used by ci_search_command */
537 OPTMSGERR, /* (pseudo) used by mutt_error/mutt_message */
538 OPTSEARCHINVALID, /* (pseudo) used to invalidate the search pat */
539 OPTSIGNALSBLOCKED, /* (pseudo) using by mutt_block_signals () */
540 OPTSYSSIGNALSBLOCKED, /* (pseudo) using by mutt_block_signals_system () */
541 OPTNEEDRESORT, /* (pseudo) used to force a re-sort */
542 OPTRESORTINIT, /* (pseudo) used to force the next resort to be from scratch */
543 OPTVIEWATTACH, /* (pseudo) signals that we are viewing attachments */
544 OPTFORCEREDRAWINDEX, /* (pseudo) used to force a redraw in the main index */
545 OPTFORCEREDRAWPAGER, /* (pseudo) used to force a redraw in the pager */
546 OPTSORTSUBTHREADS, /* (pseudo) used when $sort_aux changes */
547 OPTNEEDRESCORE, /* (pseudo) set when the `score' command is used */
548 OPTATTACHMSG, /* (pseudo) used by attach-message */
549 OPTHIDEREAD, /* (pseudo) whether or not hide read messages */
550 OPTKEEPQUIET, /* (pseudo) shut up the message and refresh
551 * functions while we are executing an
554 OPTMENUCALLER, /* (pseudo) tell menu to give caller a take */
555 OPTREDRAWTREE, /* (pseudo) redraw the thread tree */
556 OPTPGPCHECKTRUST, /* (pseudo) used by pgp_select_key () */
557 OPTDONTHANDLEPGPKEYS, /* (pseudo) used to extract PGP keys */
558 OPTUNBUFFEREDINPUT, /* (pseudo) don't use key buffer */
561 OPTNEWS, /* (pseudo) used to change reader mode */
562 OPTNEWSSEND, /* (pseudo) used to change behavior when posting */
563 OPTNEWSCACHE, /* (pseudo) used to indicate if news cache exist */
565 OPTSHORTENHIERARCHY, /* set when to shorten "hierarchies" in the sidebar */
566 OPTSIDEBARNEWMAILONLY,
570 #define mutt_bit_alloc(n) calloc ((n + 7) / 8, sizeof (char))
571 #define mutt_bit_set(v,n) v[n/8] |= (1 << (n % 8))
572 #define mutt_bit_unset(v,n) v[n/8] &= ~(1 << (n % 8))
573 #define mutt_bit_toggle(v,n) v[n/8] ^= (1 << (n % 8))
574 #define mutt_bit_isset(v,n) (v[n/8] & (1 << (n % 8)))
576 #define set_option(x) mutt_bit_set(Options,x)
577 #define unset_option(x) mutt_bit_unset(Options,x)
578 #define toggle_option(x) mutt_bit_toggle(Options,x)
579 #define option(x) mutt_bit_isset(Options,x)
581 /* Exit values used in send_msg() */
585 typedef struct list_t
591 typedef struct rx_list_t
594 struct rx_list_t *next;
597 typedef struct spam_list_t
602 struct spam_list_t *next;
606 #define mutt_new_list() safe_calloc (1, sizeof (LIST))
607 #define mutt_new_spam_list() safe_calloc (1, sizeof (SPAM_LIST))
608 #define mutt_new_rx_list() safe_calloc (1, sizeof (RX_LIST))
609 void mutt_free_list (LIST **);
610 void mutt_free_rx_list (RX_LIST **);
611 void mutt_free_spam_list (SPAM_LIST **);
612 LIST *mutt_copy_list (LIST *);
613 int mutt_matches_ignore (const char *, LIST *);
614 /* add an element to a list */
615 LIST *mutt_add_list (LIST *, const char *);
617 void mutt_init (int, LIST *);
621 struct alias *self; /* XXX - ugly hack */
630 typedef struct envelope
632 ADDRESS *return_path;
639 ADDRESS *mail_followup_to;
640 char *list_post; /* this stores a mailto URL, or nothing */
642 char *real_subj; /* offset of the real subject */
655 LIST *references; /* message references (in reverse order) */
656 LIST *in_reply_to; /* in-reply-to header content */
657 LIST *userhdrs; /* user defined headers */
660 typedef struct parameter
664 struct parameter *next;
667 /* Information that helps in determing the Content-* of an attachment */
668 typedef struct content
670 long hibin; /* 8-bit characters */
671 long lobin; /* unprintable 7-bit chars (eg., control chars) */
672 long crlf; /* '\r' and '\n' characters */
673 long ascii; /* number of ascii chars */
674 long linemax; /* length of the longest line in the file */
675 unsigned int space : 1; /* whitespace at the end of lines? */
676 unsigned int binary : 1; /* long lines, or CR not in CRLF pair */
677 unsigned int from : 1; /* has a line beginning with "From "? */
678 unsigned int dot : 1; /* has a line consisting of a single dot? */
679 unsigned int cr : 1; /* has CR, even when in a CRLF pair */
684 char *xtype; /* content-type if x-unknown */
685 char *subtype; /* content-type subtype */
686 PARAMETER *parameter; /* parameters of the content-type */
687 char *description; /* content-description */
688 char *form_name; /* Content-Disposition form-data name param */
689 long hdr_offset; /* offset in stream where the headers begin.
690 * this info is used when invoking metamail,
691 * where we need to send the headers of the
694 long offset; /* offset where the actual data begins */
695 long length; /* length (in bytes) of attachment */
696 char *filename; /* when sending a message, this is the file
697 * to which this structure refers
699 char *d_filename; /* filename to be used for the
700 * content-disposition header.
701 * If NULL, filename is used
704 char *file_charset; /* charset of attached file */
705 CONTENT *content; /* structure used to store detailed info about
706 * the content of the attachment. this is used
707 * to determine what content-transfer-encoding
708 * is required when sending mail.
710 struct body *next; /* next attachment in the list */
711 struct body *parts; /* parts of a multipart or message/rfc822 */
712 struct header *hdr; /* header information for message/rfc822 */
714 struct attachptr *aptr; /* Menu information, used in recvattach.c */
716 time_t stamp; /* time stamp of last
720 unsigned int type : 4; /* content-type primary type */
721 unsigned int encoding : 3; /* content-transfer-encoding */
722 unsigned int disposition : 2; /* content-disposition */
723 unsigned int use_disp : 1; /* Content-Disposition uses filename= ? */
724 unsigned int unlink : 1; /* flag to indicate the the file named by
725 * "filename" should be unlink()ed before
726 * free()ing this structure
728 unsigned int tagged : 1;
729 unsigned int deleted : 1; /* attachment marked for deletion */
731 unsigned int noconv : 1; /* don't do character set conversion */
732 unsigned int force_charset : 1;
733 /* send mode: don't adjust the character
734 * set when in send-mode.
736 unsigned int is_signed_data : 1; /* A lot of MUAs don't indicate
737 S/MIME signed-data correctly,
738 e.g. they use foo.p7m even for
739 the name of signed data. This
740 flag is used to keep track of
741 the actual message type. It
742 gets set during the verification
743 (which is done if the encryption
744 try failed) and check by the
745 function to figure the type of
748 unsigned int goodsig : 1; /* good cryptographic signature */
749 unsigned int warnsig : 1; /* maybe good signature */
750 unsigned int badsig : 1; /* bad cryptographic signature (needed to check encrypted s/mime-signatures) */
752 unsigned int collapsed : 1; /* used by recvattach */
756 typedef struct header
758 unsigned int security : 11; /* bit 0-6: flags, bit 7,8: application.
759 see: crypt.h pgplib.h, smime.h */
761 unsigned int mime : 1; /* has a Mime-Version header? */
762 unsigned int flagged : 1; /* marked important? */
763 unsigned int tagged : 1;
764 unsigned int appended : 1; /* has been saved */
765 unsigned int purged : 1; /* bypassing the trash folder */
766 unsigned int deleted : 1;
767 unsigned int changed : 1;
768 unsigned int attach_del : 1; /* has an attachment marked for deletion */
769 unsigned int old : 1;
770 unsigned int read : 1;
771 unsigned int expired : 1; /* already expired? */
772 unsigned int superseded : 1; /* got superseded? */
773 unsigned int replied : 1;
774 unsigned int subject_changed : 1; /* used for threading */
775 unsigned int threaded : 1; /* used for threading */
776 unsigned int display_subject : 1; /* used for threading */
777 unsigned int irt_changed : 1; /* In-Reply-To changed to link/break threads */
778 unsigned int refs_changed : 1; /* References changed to break thread */
779 unsigned int recip_valid : 1; /* is_recipient is valid */
780 unsigned int active : 1; /* message is not to be removed */
781 unsigned int trash : 1; /* message is marked as trashed on disk.
782 * This flag is used by the maildir_trash
786 /* timezone of the sender of this message */
787 unsigned int zhours : 5;
788 unsigned int zminutes : 6;
789 unsigned int zoccident : 1;
791 /* bits used for caching when searching */
792 unsigned int searched : 1;
793 unsigned int matched : 1;
795 /* the following are used to support collapsing threads */
796 unsigned int collapsed : 1; /* is this message part of a collapsed thread? */
797 unsigned int limited : 1; /* is this message in a limited view? */
798 size_t num_hidden; /* number of hidden messages in this view */
800 short recipient; /* user_is_recipient()'s return value, cached */
802 int pair; /* color-pair to use when displaying in the index */
804 time_t date_sent; /* time when the message was sent (UTC) */
805 time_t received; /* time when the message was placed in the mailbox */
806 long offset; /* where in the stream does this message begin? */
807 int lines; /* how many lines in the body of this message? */
808 int index; /* the absolute (unsorted) message number */
809 int msgno; /* number displayed to the user */
810 int virtual; /* virtual message number */
812 ENVELOPE *env; /* envelope information */
813 BODY *content; /* list of MIME parts */
819 char *tree; /* character string to print thread tree */
820 struct thread *thread;
822 ENVELOPE *new_env; /* envelope information for rethreading */
829 int refno; /* message number on server */
832 #if defined USE_POP || defined USE_IMAP || defined USE_NNTP
833 void *data; /* driver-specific data */
836 char *maildir_flags; /* unknown maildir flags */
839 typedef struct thread
841 unsigned int fake_thread : 1;
842 unsigned int duplicate_thread : 1;
843 unsigned int sort_children : 1;
844 unsigned int check_subject : 1;
845 unsigned int visible : 1;
846 unsigned int deep : 1;
847 unsigned int subtree_visible : 2;
848 unsigned int next_subtree_visible : 1;
849 struct thread *parent;
850 struct thread *child;
858 /* flag to mutt_pattern_comp() */
859 #define M_FULL_MSG 1 /* enable body and header matching */
862 M_MATCH_FULL_ADDRESS = 1
865 typedef struct pattern_t
872 struct pattern_t *next;
873 struct pattern_t *child; /* arguments to logical op */
882 time_t mtime_cur; /* used with maildir folders */
885 char *pattern; /* limit pattern string */
886 pattern_t *limit_pattern; /* compiled limit pattern */
888 HEADER *last_tag; /* last tagged msg. used to link threads */
889 THREAD *tree; /* top of thread tree */
890 HASH *id_hash; /* hash table by msg id */
891 HASH *subj_hash; /* hash table by subject */
892 HASH *thread_hash; /* hash table for threading */
893 int *v2r; /* mapping from virtual to real msgno */
894 int hdrmax; /* number of pointers in hdrs */
895 int msgcount; /* number of messages in the mailbox */
896 int vcount; /* the number of virtual messages */
897 int tagged; /* how many messages are tagged? */
898 int new; /* how many new messages? */
899 int unread; /* how many unread messages? */
900 int deleted; /* how many deleted messages */
901 int appended; /* how many saved messages? */
902 int flagged; /* how many flagged messages */
903 int msgnotreadyet; /* which msg "new" in pager, -1 if none */
904 #if defined USE_POP || defined USE_IMAP || defined USE_NNTP
905 void *data; /* driver specific data */
906 #endif /* USE_IMAP */
908 short magic; /* mailbox type */
910 #ifdef USE_COMPRESSED
911 void *compressinfo; /* compressed mbox module private data */
912 char *realpath; /* path to compressed mailbox */
913 #endif /* USE_COMPRESSED */
915 unsigned int locked : 1; /* is the mailbox locked? */
916 unsigned int changed : 1; /* mailbox has been modified */
917 unsigned int readonly : 1; /* don't allow changes to the mailbox */
918 unsigned int dontwrite : 1; /* dont write the mailbox on close */
919 unsigned int append : 1; /* mailbox is opened in append mode */
920 unsigned int quiet : 1; /* inhibit status messages? */
921 unsigned int collapsed : 1; /* are all threads collapsed? */
922 unsigned int closing : 1; /* mailbox is being closed */
925 typedef struct attachptr
942 /* used by enter.c */
954 /* flags for the STATE struct */
955 #define M_DISPLAY (1<<0) /* output is displayed to the user */
956 #define M_VERIFY (1<<1) /* perform signature verification */
957 #define M_PENDINGPREFIX (1<<2) /* prefix to write, but character must follow */
958 #define M_WEED (1<<3) /* weed headers even when not in display mode */
959 #define M_CHARCONV (1<<4) /* Do character set conversions */
960 #define M_PRINTING (1<<5) /* are we printing? - M_DISPLAY "light" */
961 #define M_REPLYING (1<<6) /* are we replying? */
962 #define M_FIRSTDONE (1<<7) /* the first attachment has been done */
964 #define state_set_prefix(s) ((s)->flags |= M_PENDINGPREFIX)
965 #define state_reset_prefix(s) ((s)->flags &= ~M_PENDINGPREFIX)
966 #define state_puts(x,y) fputs(x,(y)->fpout)
967 #define state_putc(x,y) fputc(x,(y)->fpout)
969 void state_mark_attach (STATE *);
970 void state_attach_puts (const char *, STATE *);
971 void state_prefix_putc (char, STATE *);
972 int state_printf(STATE *, const char *, ...);