3 * Copyright (C) 1996-2002 Michael R. Elkins <me@mutt.org>
4 * Copyright (C) 2004 g10 Code GmbH
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
29 # include <unistd.h> /* needed for SEEK_SET */
32 # include <unix.h> /* needed for snprintf on QNX. */
34 #include <sys/types.h>
43 #if defined(HAVE_WCTYPE_H) && defined(HAVE_WC_FUNCS)
47 #ifndef _POSIX_PATH_MAX
48 #include <posix1_lim.h>
62 # define MB_LEN_MAX 16
66 # define MUTT_VERSION (VERSION SUBVERSION)
68 # define MUTT_VERSION (VERSION)
71 /* nifty trick I stole from ELM 2.5alpha. */
74 #define INITVAL(x) = x
80 #include "mutt_regex.h"
82 /* flags for mutt_copy_header() */
83 #define CH_UPDATE 1 /* update the status and x-status fields? */
84 #define CH_WEED (1<<1) /* weed the headers? */
85 #define CH_DECODE (1<<2) /* do RFC1522 decoding? */
86 #define CH_XMIT (1<<3) /* transmitting this message? */
87 #define CH_FROM (1<<4) /* retain the "From " message separator? */
88 #define CH_PREFIX (1<<5) /* use Prefix string? */
89 #define CH_NOSTATUS (1<<6) /* supress the status and x-status fields */
90 #define CH_REORDER (1<<7) /* Re-order output of headers */
91 #define CH_NONEWLINE (1<<8) /* don't output terminating newline */
92 #define CH_MIME (1<<9) /* ignore MIME fields */
93 #define CH_UPDATE_LEN (1<<10) /* update Lines: and Content-Length: */
94 #define CH_TXTPLAIN (1<<11) /* generate text/plain MIME headers */
95 #define CH_NOLEN (1<<12) /* don't write Content-Length: and Lines: */
96 #define CH_WEED_DELIVERED (1<<13) /* weed eventual Delivered-To headers */
97 #define CH_FORCE_FROM (1<<14) /* give CH_FROM precedence over CH_WEED? */
98 #define CH_NOQFROM (1<<15) /* give CH_FROM precedence over CH_WEED? */
99 #define CH_UPDATE_IRT (1<<16) /* update In-Reply-To: */
100 #define CH_UPDATE_REFS (1<<17) /* update References: */
102 /* flags for mutt_enter_string() */
103 #define M_ALIAS 1 /* do alias "completion" by calling up the alias-menu */
104 #define M_FILE (1<<1) /* do file completion */
105 #define M_EFILE (1<<2) /* do file completion, plus incoming folders */
106 #define M_CMD (1<<3) /* do completion on previous word */
107 #define M_PASS (1<<4) /* password mode (no echo) */
108 #define M_CLEAR (1<<5) /* clear input if printable character is pressed */
109 #define M_COMMAND (1<<6) /* do command completion */
110 #define M_PATTERN (1<<7) /* pattern mode - only used for history classes */
111 #define M_LASTFOLDER (1<<8) /* last-folder mode - hack hack hack */
113 /* flags for mutt_get_token() */
114 #define M_TOKEN_EQUAL 1 /* treat '=' as a special */
115 #define M_TOKEN_CONDENSE (1<<1) /* ^(char) to control chars (macros) */
116 #define M_TOKEN_SPACE (1<<2) /* don't treat whitespace as a term */
117 #define M_TOKEN_QUOTE (1<<3) /* don't interpret quotes */
118 #define M_TOKEN_PATTERN (1<<4) /* !)|~ are terms (for patterns) */
119 #define M_TOKEN_COMMENT (1<<5) /* don't reap comments */
120 #define M_TOKEN_SEMICOLON (1<<6) /* don't treat ; as special */
122 /* flags for km_dokey() */
123 #define M_KM_UNBUFFERED 1 /* don't read from the key buffer */
127 char *data; /* pointer to data */
128 char *dptr; /* current read/write position */
129 size_t dsize; /* length of data */
130 int destroy; /* destroy `data' when done? */
135 int ch; /* raw key pressed */
136 int op; /* function op */
139 /* flags for _mutt_system() */
140 #define M_DETACH_PROCESS 1 /* detach subprocess from group */
142 /* flags for mutt_FormatString() */
145 M_FORMAT_FORCESUBJ = (1<<0), /* print the subject even if unchanged */
146 M_FORMAT_TREE = (1<<1), /* draw the thread tree */
147 M_FORMAT_MAKEPRINT = (1<<2), /* make sure that all chars are printable */
148 M_FORMAT_OPTIONAL = (1<<3),
149 M_FORMAT_STAT_FILE = (1<<4), /* used by mutt_attach_fmt */
150 M_FORMAT_ARROWCURSOR = (1<<5), /* reserve space for arrow_cursor */
151 M_FORMAT_INDEX = (1<<6) /* this is a main index entry */
154 /* types for mutt_add_hook() */
155 #define M_FOLDERHOOK 1
156 #define M_MBOXHOOK (1<<1)
157 #define M_SENDHOOK (1<<2)
158 #define M_FCCHOOK (1<<3)
159 #define M_SAVEHOOK (1<<4)
160 #define M_CHARSETHOOK (1<<5)
161 #define M_ICONVHOOK (1<<6)
162 #define M_MESSAGEHOOK (1<<7)
163 #define M_CRYPTHOOK (1<<8)
164 #define M_ACCOUNTHOOK (1<<9)
165 #define M_REPLYHOOK (1<<10)
166 #define M_SEND2HOOK (1<<11)
168 #ifdef USE_COMPRESSED
169 #define M_OPENHOOK (1<<12)
170 #define M_APPENDHOOK (1<<13)
171 #define M_CLOSEHOOK (1<<14)
174 /* tree characters for linearize_tree and print_enriched_string */
175 #define M_TREE_LLCORNER 1
176 #define M_TREE_ULCORNER 2
177 #define M_TREE_LTEE 3
178 #define M_TREE_HLINE 4
179 #define M_TREE_VLINE 5
180 #define M_TREE_SPACE 6
181 #define M_TREE_RARROW 7
182 #define M_TREE_STAR 8
183 #define M_TREE_HIDDEN 9
184 #define M_TREE_EQUALS 10
185 #define M_TREE_TTEE 11
186 #define M_TREE_BTEE 12
187 #define M_TREE_MISSING 13
188 #define M_TREE_MAX 14
190 #define M_THREAD_COLLAPSE (1<<0)
191 #define M_THREAD_UNCOLLAPSE (1<<1)
192 #define M_THREAD_GET_HIDDEN (1<<2)
193 #define M_THREAD_UNREAD (1<<3)
194 #define M_THREAD_NEXT_UNREAD (1<<4)
198 /* modes for mutt_view_attachment() */
203 /* 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 */
392 OPTHIDETHREADSUBJECT,
395 OPTIGNORELISTREPLYTO,
401 # if defined(USE_SSL) || defined(USE_GNUTLS)
405 #if defined(USE_SSL) || defined(USE_NSS) || defined(USE_GNUTLS)
423 OPTMENUSCROLL, /* scroll menu instead of implicit next-page */
424 OPTMETAKEY, /* interpret ALT-x as ESC-x */
429 OPTMIMESUBJECT, /* encode subject line with RFC2047 */
471 #ifdef HAVE_GETADDRINFO
478 OPTWRITEBCC, /* write out a bcc header? */
490 OPTCRYPTREPLYENCRYPT,
492 OPTCRYPTREPLYSIGNENCRYPTED,
496 OPTSDEFAULTDECRYPTKEY,
518 #endif /* USE_NNTP */
522 OPTAUXSORT, /* (pseudo) using auxillary sort function */
523 OPTFORCEREFRESH, /* (pseudo) refresh even during macros */
524 OPTLOCALES, /* (pseudo) set if user has valid locale definition */
525 OPTNOCURSES, /* (pseudo) when sending in batch mode */
526 OPTNEEDREDRAW, /* (pseudo) to notify caller of a submenu */
527 OPTSEARCHREVERSE, /* (pseudo) used by ci_search_command */
528 OPTMSGERR, /* (pseudo) used by mutt_error/mutt_message */
529 OPTSEARCHINVALID, /* (pseudo) used to invalidate the search pat */
530 OPTSIGNALSBLOCKED, /* (pseudo) using by mutt_block_signals () */
531 OPTSYSSIGNALSBLOCKED, /* (pseudo) using by mutt_block_signals_system () */
532 OPTNEEDRESORT, /* (pseudo) used to force a re-sort */
533 OPTRESORTINIT, /* (pseudo) used to force the next resort to be from scratch */
534 OPTVIEWATTACH, /* (pseudo) signals that we are viewing attachments */
535 OPTFORCEREDRAWINDEX, /* (pseudo) used to force a redraw in the main index */
536 OPTFORCEREDRAWPAGER, /* (pseudo) used to force a redraw in the pager */
537 OPTSORTSUBTHREADS, /* (pseudo) used when $sort_aux changes */
538 OPTNEEDRESCORE, /* (pseudo) set when the `score' command is used */
539 OPTATTACHMSG, /* (pseudo) used by attach-message */
540 OPTHIDEREAD, /* (pseudo) whether or not hide read messages */
541 OPTKEEPQUIET, /* (pseudo) shut up the message and refresh
542 * functions while we are executing an
545 OPTMENUCALLER, /* (pseudo) tell menu to give caller a take */
546 OPTREDRAWTREE, /* (pseudo) redraw the thread tree */
547 OPTPGPCHECKTRUST, /* (pseudo) used by pgp_select_key () */
548 OPTDONTHANDLEPGPKEYS, /* (pseudo) used to extract PGP keys */
549 OPTUNBUFFEREDINPUT, /* (pseudo) don't use key buffer */
552 OPTNEWS, /* (pseudo) used to change reader mode */
553 OPTNEWSSEND, /* (pseudo) used to change behavior when posting */
554 OPTNEWSCACHE, /* (pseudo) used to indicate if news cache exist */
560 #define mutt_bit_alloc(n) calloc ((n + 7) / 8, sizeof (char))
561 #define mutt_bit_set(v,n) v[n/8] |= (1 << (n % 8))
562 #define mutt_bit_unset(v,n) v[n/8] &= ~(1 << (n % 8))
563 #define mutt_bit_toggle(v,n) v[n/8] ^= (1 << (n % 8))
564 #define mutt_bit_isset(v,n) (v[n/8] & (1 << (n % 8)))
566 #define set_option(x) mutt_bit_set(Options,x)
567 #define unset_option(x) mutt_bit_unset(Options,x)
568 #define toggle_option(x) mutt_bit_toggle(Options,x)
569 #define option(x) mutt_bit_isset(Options,x)
571 /* Exit values used in send_msg() */
575 typedef struct list_t
581 typedef struct rx_list_t
584 struct rx_list_t *next;
587 typedef struct spam_list_t
592 struct spam_list_t *next;
596 #define mutt_new_list() safe_calloc (1, sizeof (LIST))
597 #define mutt_new_spam_list() safe_calloc (1, sizeof (SPAM_LIST))
598 #define mutt_new_rx_list() safe_calloc (1, sizeof (RX_LIST))
599 void mutt_free_list (LIST **);
600 void mutt_free_rx_list (RX_LIST **);
601 void mutt_free_spam_list (SPAM_LIST **);
602 LIST *mutt_copy_list (LIST *);
603 int mutt_matches_ignore (const char *, LIST *);
604 /* add an element to a list */
605 LIST *mutt_add_list (LIST *, const char *);
607 void mutt_init (int, LIST *);
611 struct alias *self; /* XXX - ugly hack */
620 typedef struct envelope
622 ADDRESS *return_path;
629 ADDRESS *mail_followup_to;
630 char *list_post; /* this stores a mailto URL, or nothing */
632 char *real_subj; /* offset of the real subject */
645 LIST *references; /* message references (in reverse order) */
646 LIST *in_reply_to; /* in-reply-to header content */
647 LIST *userhdrs; /* user defined headers */
650 typedef struct parameter
654 struct parameter *next;
657 /* Information that helps in determing the Content-* of an attachment */
658 typedef struct content
660 long hibin; /* 8-bit characters */
661 long lobin; /* unprintable 7-bit chars (eg., control chars) */
662 long crlf; /* '\r' and '\n' characters */
663 long ascii; /* number of ascii chars */
664 long linemax; /* length of the longest line in the file */
665 unsigned int space : 1; /* whitespace at the end of lines? */
666 unsigned int binary : 1; /* long lines, or CR not in CRLF pair */
667 unsigned int from : 1; /* has a line beginning with "From "? */
668 unsigned int dot : 1; /* has a line consisting of a single dot? */
669 unsigned int cr : 1; /* has CR, even when in a CRLF pair */
674 char *xtype; /* content-type if x-unknown */
675 char *subtype; /* content-type subtype */
676 PARAMETER *parameter; /* parameters of the content-type */
677 char *description; /* content-description */
678 char *form_name; /* Content-Disposition form-data name param */
679 long hdr_offset; /* offset in stream where the headers begin.
680 * this info is used when invoking metamail,
681 * where we need to send the headers of the
684 long offset; /* offset where the actual data begins */
685 long length; /* length (in bytes) of attachment */
686 char *filename; /* when sending a message, this is the file
687 * to which this structure refers
689 char *d_filename; /* filename to be used for the
690 * content-disposition header.
691 * If NULL, filename is used
694 CONTENT *content; /* structure used to store detailed info about
695 * the content of the attachment. this is used
696 * to determine what content-transfer-encoding
697 * is required when sending mail.
699 struct body *next; /* next attachment in the list */
700 struct body *parts; /* parts of a multipart or message/rfc822 */
701 struct header *hdr; /* header information for message/rfc822 */
703 struct attachptr *aptr; /* Menu information, used in recvattach.c */
705 time_t stamp; /* time stamp of last
709 unsigned int type : 4; /* content-type primary type */
710 unsigned int encoding : 3; /* content-transfer-encoding */
711 unsigned int disposition : 2; /* content-disposition */
712 unsigned int use_disp : 1; /* Content-Disposition uses filename= ? */
713 unsigned int unlink : 1; /* flag to indicate the the file named by
714 * "filename" should be unlink()ed before
715 * free()ing this structure
717 unsigned int tagged : 1;
718 unsigned int deleted : 1; /* attachment marked for deletion */
720 unsigned int noconv : 1; /* don't do character set conversion */
721 unsigned int force_charset : 1;
722 /* send mode: don't adjust the character
723 * set when in send-mode.
725 unsigned int is_signed_data : 1; /* A lot of MUAs don't indicate
726 S/MIME signed-data correctly,
727 e.g. they use foo.p7m even for
728 the name of signed data. This
729 flag is used to keep track of
730 the actual message type. It
731 gets set during the verification
732 (which is done if the encryption
733 try failed) and check by the
734 function to figure the type of
737 unsigned int goodsig : 1; /* good cryptographic signature */
738 unsigned int warnsig : 1; /* maybe good signature */
739 unsigned int badsig : 1; /* bad cryptographic signature (needed to check encrypted s/mime-signatures) */
741 unsigned int collapsed : 1; /* used by recvattach */
745 typedef struct header
747 unsigned int security : 11; /* bit 0-6: flags, bit 7,8: application.
748 see: crypt.h pgplib.h, smime.h */
750 unsigned int mime : 1; /* has a Mime-Version header? */
751 unsigned int flagged : 1; /* marked important? */
752 unsigned int tagged : 1;
753 unsigned int appended : 1; /* has been saved */
754 unsigned int purged : 1; /* bypassing the trash folder */
755 unsigned int deleted : 1;
756 unsigned int changed : 1;
757 unsigned int attach_del : 1; /* has an attachment marked for deletion */
758 unsigned int old : 1;
759 unsigned int read : 1;
760 unsigned int expired : 1; /* already expired? */
761 unsigned int superseded : 1; /* got superseded? */
762 unsigned int replied : 1;
763 unsigned int subject_changed : 1; /* used for threading */
764 unsigned int threaded : 1; /* used for threading */
765 unsigned int display_subject : 1; /* used for threading */
766 unsigned int irt_changed : 1; /* In-Reply-To changed to link/break threads */
767 unsigned int refs_changed : 1; /* References changed to break thread */
768 unsigned int recip_valid : 1; /* is_recipient is valid */
769 unsigned int active : 1; /* message is not to be removed */
770 unsigned int trash : 1; /* message is marked as trashed on disk.
771 * This flag is used by the maildir_trash
775 /* timezone of the sender of this message */
776 unsigned int zhours : 5;
777 unsigned int zminutes : 6;
778 unsigned int zoccident : 1;
780 /* bits used for caching when searching */
781 unsigned int searched : 1;
782 unsigned int matched : 1;
784 /* the following are used to support collapsing threads */
785 unsigned int collapsed : 1; /* is this message part of a collapsed thread? */
786 unsigned int limited : 1; /* is this message in a limited view? */
787 size_t num_hidden; /* number of hidden messages in this view */
789 short recipient; /* user_is_recipient()'s return value, cached */
791 int pair; /* color-pair to use when displaying in the index */
793 time_t date_sent; /* time when the message was sent (UTC) */
794 time_t received; /* time when the message was placed in the mailbox */
795 long offset; /* where in the stream does this message begin? */
796 int lines; /* how many lines in the body of this message? */
797 int index; /* the absolute (unsorted) message number */
798 int msgno; /* number displayed to the user */
799 int virtual; /* virtual message number */
801 ENVELOPE *env; /* envelope information */
802 BODY *content; /* list of MIME parts */
808 char *tree; /* character string to print thread tree */
809 struct thread *thread;
811 #ifdef IMAP_EDIT_THREADS
812 ENVELOPE *new_env; /* envelope information for rethreading */
820 int refno; /* message number on server */
823 #if defined USE_POP || defined USE_IMAP || defined USE_NNTP
824 void *data; /* driver-specific data */
827 char *maildir_flags; /* unknown maildir flags */
830 typedef struct thread
832 unsigned int fake_thread : 1;
833 unsigned int duplicate_thread : 1;
834 unsigned int sort_children : 1;
835 unsigned int check_subject : 1;
836 unsigned int visible : 1;
837 unsigned int deep : 1;
838 unsigned int subtree_visible : 2;
839 unsigned int next_subtree_visible : 1;
840 struct thread *parent;
841 struct thread *child;
849 /* flag to mutt_pattern_comp() */
850 #define M_FULL_MSG 1 /* enable body and header matching */
853 M_MATCH_FULL_ADDRESS = 1
856 typedef struct pattern_t
863 struct pattern_t *next;
864 struct pattern_t *child; /* arguments to logical op */
873 time_t mtime_cur; /* used with maildir folders */
876 char *pattern; /* limit pattern string */
877 pattern_t *limit_pattern; /* compiled limit pattern */
879 HEADER *last_tag; /* last tagged msg. used to link threads */
880 THREAD *tree; /* top of thread tree */
881 HASH *id_hash; /* hash table by msg id */
882 HASH *subj_hash; /* hash table by subject */
883 HASH *thread_hash; /* hash table for threading */
884 int *v2r; /* mapping from virtual to real msgno */
885 int hdrmax; /* number of pointers in hdrs */
886 int msgcount; /* number of messages in the mailbox */
887 int vcount; /* the number of virtual messages */
888 int tagged; /* how many messages are tagged? */
889 int new; /* how many new messages? */
890 int unread; /* how many unread messages? */
891 int deleted; /* how many deleted messages */
892 int appended; /* how many saved messages? */
893 int flagged; /* how many flagged messages */
894 int msgnotreadyet; /* which msg "new" in pager, -1 if none */
895 #if defined USE_POP || defined USE_IMAP || defined USE_NNTP
896 void *data; /* driver specific data */
897 #endif /* USE_IMAP */
899 short magic; /* mailbox type */
901 #ifdef USE_COMPRESSED
902 void *compressinfo; /* compressed mbox module private data */
903 char *realpath; /* path to compressed mailbox */
904 #endif /* USE_COMPRESSED */
906 unsigned int locked : 1; /* is the mailbox locked? */
907 unsigned int changed : 1; /* mailbox has been modified */
908 unsigned int readonly : 1; /* don't allow changes to the mailbox */
909 unsigned int dontwrite : 1; /* dont write the mailbox on close */
910 unsigned int append : 1; /* mailbox is opened in append mode */
911 unsigned int quiet : 1; /* inhibit status messages? */
912 unsigned int collapsed : 1; /* are all threads collapsed? */
913 unsigned int closing : 1; /* mailbox is being closed */
916 typedef struct attachptr
933 /* used by enter.c */
945 /* flags for the STATE struct */
946 #define M_DISPLAY (1<<0) /* output is displayed to the user */
947 #define M_VERIFY (1<<1) /* perform signature verification */
948 #define M_PENDINGPREFIX (1<<2) /* prefix to write, but character must follow */
949 #define M_WEED (1<<3) /* weed headers even when not in display mode */
950 #define M_CHARCONV (1<<4) /* Do character set conversions */
951 #define M_PRINTING (1<<5) /* are we printing? - M_DISPLAY "light" */
952 #define M_REPLYING (1<<6) /* are we replying? */
953 #define M_FIRSTDONE (1<<7) /* the first attachment has been done */
955 #define state_set_prefix(s) ((s)->flags |= M_PENDINGPREFIX)
956 #define state_reset_prefix(s) ((s)->flags &= ~M_PENDINGPREFIX)
957 #define state_puts(x,y) fputs(x,(y)->fpout)
958 #define state_putc(x,y) fputc(x,(y)->fpout)
960 void state_mark_attach (STATE *);
961 void state_attach_puts (const char *, STATE *);
962 void state_prefix_putc (char, STATE *);
963 int state_printf(STATE *, const char *, ...);