458 lines
14 KiB
C
458 lines
14 KiB
C
/* $NetBSD: def.h,v 1.26 2007/10/27 15:14:50 christos Exp $ */
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/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)def.h 8.4 (Berkeley) 4/20/95
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* $NetBSD: def.h,v 1.26 2007/10/27 15:14:50 christos Exp $
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*/
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/*
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* Mail -- a mail program
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*
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* Author: Kurt Shoens (UCB) March 25, 1978
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*/
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#ifndef __DEF_H__
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#define __DEF_H__
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#include <sys/types.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <time.h>
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#include <unistd.h>
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#include "pathnames.h"
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#define APPEND /* New mail goes to end of mailbox */
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#define COMMENT_CHAR '#' /* Comment character when sourcing */
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#define ESCAPE '~' /* Default escape for sending */
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#define NMLSIZE 1024 /* max names in a message list */
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#define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */
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#define HSHSIZE 59 /* Hash size for aliases and vars */
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#define LINESIZE BUFSIZ /* max readable line width */
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#define MAXARGC 1024 /* Maximum list of raw strings */
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#define MAXEXP 25 /* Maximum expansion of aliases */
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#define PUBLIC /* make it easy to find the entry points */
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/*
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* User environment variable names.
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* See complete.h, mime.h, and thread.h for names specific to those modules.
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*/
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#define ENAME_INDENT_POSTSCRIPT "indentpostscript"
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#define ENAME_INDENT_PREAMBLE "indentpreamble"
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#define ENAME_APPEND "append"
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#define ENAME_ASK "ask"
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#define ENAME_ASKBCC "askbcc"
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#define ENAME_ASKCC "askcc"
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#define ENAME_ASKSUB "asksub"
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#define ENAME_AUTOINC "autoinc"
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#define ENAME_AUTOPRINT "autoprint"
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#define ENAME_CRT "crt"
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#define ENAME_DEAD "DEAD"
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#define ENAME_DEBUG "debug"
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#define ENAME_DONTSENDEMPTY "dontsendempty"
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#define ENAME_DOT "dot"
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#define ENAME_EDITOR "EDITOR"
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#define ENAME_ENABLE_PIPES "enable-pipes"
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#define ENAME_ESCAPE "escape"
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#define ENAME_FOLDER "folder"
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#define ENAME_HEADER_FORMAT "header-format"
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#define ENAME_HOLD "hold"
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#define ENAME_IGNORE "ignore"
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#define ENAME_IGNOREEOF "ignoreeof"
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#define ENAME_INDENTPREFIX "indentprefix"
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#define ENAME_INTERACTIVE "interactive"
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#define ENAME_KEEP "keep"
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#define ENAME_KEEPSAVE "keepsave"
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#define ENAME_LISTER "LISTER"
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#define ENAME_MBOX "MBOX"
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#define ENAME_METOO "metoo"
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#define ENAME_NOHEADER "noheader"
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#define ENAME_NOSAVE "nosave"
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#define ENAME_PAGER "PAGER"
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#define ENAME_PAGER_OFF "pager-off"
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#define ENAME_PROMPT "prompt"
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#define ENAME_QUIET "quiet"
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#define ENAME_RECORD "record"
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#define ENAME_REGEX_SEARCH "regex-search"
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#define ENAME_REPLYALL "Replyall"
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#define ENAME_REPLYASRECIPIENT "ReplyAsRecipient"
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#define ENAME_SCREEN "screen"
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#define ENAME_SCREENHEIGHT "screenheight"
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#define ENAME_SCREENWIDTH "screenwidth"
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#define ENAME_SEARCHHEADERS "searchheaders"
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#define ENAME_SENDMAIL "sendmail"
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#define ENAME_SHELL "SHELL"
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#define ENAME_SHOW_RCPT "show-rcpt"
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#define ENAME_SMOPTS_VERIFY "smopts-verify"
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#define ENAME_TOPLINES "toplines"
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#define ENAME_VERBOSE "verbose"
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#define ENAME_VISUAL "VISUAL"
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#define sizeofarray(a) (sizeof(a)/sizeof(*a))
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#define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
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struct message {
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short m_flag; /* flags, see below */
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short m_offset; /* offset in block of message */
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long m_block; /* block number of this message */
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long m_lines; /* Lines in the message */
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off_t m_size; /* Bytes in the message */
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long m_blines; /* Body (non-header) lines */
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/*
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* threading fields
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*/
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int m_index; /* message index in this thread */
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int m_depth; /* depth in thread */
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struct message *m_flink; /* link to next message */
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struct message *m_blink; /* link to previous message */
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struct message *m_clink; /* link to child of this message */
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struct message *m_plink; /* link to parent of thread */
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};
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typedef struct mime_info mime_info_t; /* phantom structure only to attach.c */
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/*
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* flag bits.
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*/
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#define MUSED (1<<0) /* entry is used, but this bit isn't */
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#define MDELETED (1<<1) /* entry has been deleted */
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#define MSAVED (1<<2) /* entry has been saved */
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#define MTOUCH (1<<3) /* entry has been noticed */
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#define MPRESERVE (1<<4) /* keep entry in sys mailbox */
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#define MMARK (1<<5) /* message is marked! */
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#define MMODIFY (1<<6) /* message has been modified */
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#define MNEW (1<<7) /* message has never been seen */
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#define MREAD (1<<8) /* message has been read sometime. */
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#define MSTATUS (1<<9) /* message status has changed */
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#define MBOX (1<<10) /* Send this to mbox, regardless */
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#define MTAGGED (1<<11) /* message has been tagged */
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/*
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* Given a file address, determine the block number it represents.
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*/
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#define blockof(off) ((int) ((off) / 4096))
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#define blkoffsetof(off) ((int) ((off) % 4096))
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#define positionof(block, offset) ((off_t)(block) * 4096 + (offset))
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/*
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* Format of the command description table.
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* The actual table is declared and initialized
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* in lex.c
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*/
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struct cmd {
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const char *c_name; /* Name of command */
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int (*c_func)(void *); /* Implementor of the command */
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int c_pipe; /* Pipe output through the pager */
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# define C_PIPE_PAGER 1 /* enable use of pager */
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# define C_PIPE_CRT 2 /* use the pager if CRT is defined */
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# define C_PIPE_SHELL 4 /* enable shell pipes */
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#ifdef USE_EDITLINE
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const char *c_complete; /* String describing completion */
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#endif
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short c_argtype; /* Type of arglist (see below) */
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short c_msgflag; /* Required flags of messages */
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short c_msgmask; /* Relevant flags of messages */
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};
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/* Yechh, can't initialize unions */
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#define c_minargs c_msgflag /* Minimum argcount for RAWLIST */
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#define c_maxargs c_msgmask /* Max argcount for RAWLIST */
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/*
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* Argument types.
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*/
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#define MSGLIST 0 /* Message list type */
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#define STRLIST 1 /* A pure string */
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#define RAWLIST 2 /* Shell string list */
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#define NOLIST 3 /* Just plain 0 */
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#define NDMLIST 4 /* Message list, no defaults */
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#define P 0x010 /* Autoprint dot after command */
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#define I 0x020 /* Interactive command bit */
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#define M 0x040 /* Legal from send mode bit */
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#define W 0x080 /* Illegal when read only bit */
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#define F 0x100 /* Is a conditional command */
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#define T 0x200 /* Is a transparent command */
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#define R 0x400 /* Cannot be called from collect */
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#define ARGTYPE_MASK ~(P|I|M|W|F|T|R)
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/*
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* Oft-used mask values
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*/
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#define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */
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#define MMNDEL MDELETED /* Look only at deleted bit */
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/*
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* Structure used to return a break down of a head
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* line (hats off to Bill Joy!)
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*/
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struct headline {
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char *l_from; /* The name of the sender */
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char *l_tty; /* His tty string (if any) */
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char *l_date; /* The entire date string */
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};
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#define GTO 0x001 /* Grab To: line */
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#define GSUBJECT 0x002 /* Likewise, Subject: line */
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#define GCC 0x004 /* And the Cc: line */
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#define GBCC 0x008 /* And also the Bcc: line */
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#define GSMOPTS 0x010 /* Grab the sendmail options */
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#define GMISC 0x020 /* miscellaneous extra fields for sending */
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#ifdef MIME_SUPPORT
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#define GMIME 0x040 /* mime flag */
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#endif
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#define GMASK (GTO|GSUBJECT|GCC|GBCC|GSMOPTS)
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/* Mask of places from whence */
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#define GNL 0x100 /* Print blank line after */
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#define GDEL 0x200 /* Entity removed from list */
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#define GCOMMA 0x400 /* detract puts in commas */
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#ifdef MIME_SUPPORT
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/*
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* Structure of MIME content.
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*/
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struct Content {
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const char *C_type; /* content type */
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const char *C_encoding; /* content transfer encoding */
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const char *C_disposition; /* content disposition */
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const char *C_description; /* content description */
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const char *C_id; /* content id */
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};
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/* Header strings corresponding to the above Content fields. */
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#define MIME_HDR_TYPE "Content-Type"
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#define MIME_HDR_ENCODING "Content-Transfer-Encoding"
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#define MIME_HDR_DISPOSITION "Content-Disposition"
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#define MIME_HDR_ID "Content-ID"
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#define MIME_HDR_DESCRIPTION "Content-Description"
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#define MIME_HDR_VERSION "MIME-Version"
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/* the value of the MIME-Version field */
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#define MIME_VERSION "1.0"
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typedef enum {
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ATTACH_INVALID = 0, /* do not use! */
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ATTACH_FNAME = 1,
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ATTACH_MSG = 2,
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ATTACH_FILENO = 3
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} attach_t;
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/*
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* Structure of a MIME attachment.
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*/
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struct attachment {
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struct attachment *a_flink; /* Forward link in list. */
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struct attachment *a_blink; /* Backward list link */
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attach_t a_type; /* attachment type */
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#if 1
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union {
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char *u_name; /* file name */
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struct message *u_msg; /* message */
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int u_fileno; /* file number */
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} a_u;
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#define a_name a_u.u_name
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#define a_msg a_u.u_msg
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#define a_fileno a_u.u_fileno
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#else
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char *a_name; /* file name */
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struct message *a_msg; /* message */
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int a_fileno; /* file number */
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#endif
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struct Content a_Content; /* MIME content strings */
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};
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#endif /* MIME_SUPPORT */
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/*
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* Structure used to pass about the current
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* state of the user-typed message header.
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*/
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struct header {
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struct name *h_to; /* Dynamic "To:" string */
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char *h_subject; /* Subject string */
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struct name *h_cc; /* Carbon copies string */
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struct name *h_bcc; /* Blind carbon copies */
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struct name *h_smopts; /* Sendmail options */
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char *h_in_reply_to;
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struct name *h_references;
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char *h_extra; /* extra lines to output */
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#ifdef MIME_SUPPORT
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char *h_mime_boundary; /* MIME multipart boundary string */
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struct Content h_Content; /* MIME content for message */
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struct attachment *h_attach; /* MIME attachments */
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#endif
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};
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/*
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* Structure of namelist nodes used in processing
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* the recipients of mail and aliases and all that
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* kind of stuff.
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*/
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struct name {
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struct name *n_flink; /* Forward link in list. */
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struct name *n_blink; /* Backward list link */
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short n_type; /* From which list it came */
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char *n_name; /* This fella's name */
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};
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/*
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* Structure of a variable node. All variables are
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* kept on a singly-linked list of these, rooted by
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* "variables"
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*/
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struct var {
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struct var *v_link; /* Forward link to next variable */
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char *v_name; /* The variable's name */
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char *v_value; /* And it's current value */
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};
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struct group {
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struct group *ge_link; /* Next person in this group */
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char *ge_name; /* This person's user name */
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};
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struct grouphead {
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struct grouphead *g_link; /* Next grouphead in list */
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char *g_name; /* Name of this group */
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struct group *g_list; /* Users in group. */
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};
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struct smopts_s {
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struct smopts_s *s_link; /* Link to next smopts_s in list */
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char *s_name; /* Name of this smopts_s */
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struct name *s_smopts; /* sendmail options name list */
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};
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/*
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* Structure of the hash table of ignored header fields
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*/
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struct ignoretab {
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size_t i_count; /* Number of entries */
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struct ignore {
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struct ignore *i_link; /* Next ignored field in bucket */
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char *i_field; /* This ignored field */
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} *i_head[HSHSIZE];
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};
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/*
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* Constants for conditional commands. These control whether we
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* should be executing commands or not.
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*/
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struct cond_stack_s {
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struct cond_stack_s *c_next;
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int c_cond;
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};
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#define CNONE 0x00 /* Execute everything */
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#define CSKIP 0x01 /* Do not execute commands */
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#define CIF 0x02 /* Inside if/endif block */
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#define CELSE 0x04 /* The last conditional was else */
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#define CIGN 0x08 /* Conditional in a skipped block */
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enum mailmode_e {
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mm_receiving, /* receiving mail mode */
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mm_sending, /* sending mail mode */
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mm_hdrsonly /* headers only mode */
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};
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/*
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* Kludges to handle the change from setexit / reset to setjmp / longjmp
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*/
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#define setexit() (void)setjmp(srbuf)
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#define reset(x) longjmp(srbuf, x)
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/*
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* Truncate a file to the last character written. This is
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* useful just before closing an old file that was opened
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* for read/write.
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*/
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#define trunc(stream) { \
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(void)fflush(stream); \
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(void)ftruncate(fileno(stream), (off_t)ftell(stream)); \
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}
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/*
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* White Space (WSP) as specified in see RFC 2822.
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*
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* NOTE: Use this in place of isblank() so it is inline. Also, unlike
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* the table implemented ctype(3) routines, this does not have input
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* range issues caused by sign extensions.
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*
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* See mime_header.h for the related is_FWS().
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*/
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static inline int
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is_WSP(int c)
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{
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return c == ' ' || c == '\t';
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}
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static inline char*
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skip_WSP(const char *cp)
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{
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while (is_WSP(*cp))
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cp++;
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return __UNCONST(cp);
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}
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static inline char*
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skip_space(char *p)
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{
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while (isspace((unsigned char)*p))
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p++;
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return p;
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}
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#endif /* __DEF_H__ */
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