NetBSD/usr.bin/mail/def.h

458 lines
14 KiB
C

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