NetBSD/usr.bin/mail/def.h

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1993-03-21 12:45:37 +03:00
/*
* Copyright (c) 1980 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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 5.22 (Berkeley) 6/25/90
*/
#include <sys/param.h> /* includes <sys/types.h> */
#include <sys/signal.h>
#include <stdio.h>
#include <sgtty.h>
#include <ctype.h>
#include <string.h>
#include "pathnames.h"
/*
* Mail -- a mail program
*
* Author: Kurt Shoens (UCB) March 25, 1978
*/
#define APPEND /* New mail goes to end of mailbox */
#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 STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */
#define MAXARGC 1024 /* Maximum list of raw strings */
#define NOSTR ((char *) 0) /* Null string pointer */
#define MAXEXP 25 /* Maximum expansion of aliases */
#define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
struct message {
short m_flag; /* flags, see below */
short m_block; /* block number of this message */
short m_offset; /* offset in block of message */
long m_size; /* Bytes in the message */
short m_lines; /* Lines in the message */
};
/*
* 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 MODIFY (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 */
/*
* Given a file address, determine the block number it represents.
*/
#define blockof(off) ((int) ((off) / 4096))
#define offsetof(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 {
char *c_name; /* Name of command */
int (*c_func)(); /* Implementor of the command */
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 040 /* Autoprint dot after command */
#define I 0100 /* Interactive command bit */
#define M 0200 /* Legal from send mode bit */
#define W 0400 /* Illegal when read only bit */
#define F 01000 /* Is a conditional command */
#define T 02000 /* Is a transparent command */
#define R 04000 /* Cannot be called from collect */
/*
* 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 1 /* Grab To: line */
#define GSUBJECT 2 /* Likewise, Subject: line */
#define GCC 4 /* And the Cc: line */
#define GBCC 8 /* And also the Bcc: line */
#define GMASK (GTO|GSUBJECT|GCC|GBCC)
/* Mask of places from whence */
#define GNL 16 /* Print blank line after */
#define GDEL 32 /* Entity removed from list */
#define GCOMMA 64 /* detract puts in commas */
/*
* 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 */
};
/*
* 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. */
};
#define NIL ((struct name *) 0) /* The nil pointer for namelists */
#define NONE ((struct cmd *) 0) /* The nil pointer to command tab */
#define NOVAR ((struct var *) 0) /* The nil pointer to variables */
#define NOGRP ((struct grouphead *) 0)/* The nil grouphead pointer */
#define NOGE ((struct group *) 0) /* The nil group pointer */
/*
* Structure of the hash table of ignored header fields
*/
struct ignoretab {
int 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];
};
/*
* Token values returned by the scanner used for argument lists.
* Also, sizes of scanner-related things.
*/
#define TEOL 0 /* End of the command line */
#define TNUMBER 1 /* A message number */
#define TDASH 2 /* A simple dash */
#define TSTRING 3 /* A string (possibly containing -) */
#define TDOT 4 /* A "." */
#define TUP 5 /* An "^" */
#define TDOLLAR 6 /* A "$" */
#define TSTAR 7 /* A "*" */
#define TOPEN 8 /* An '(' */
#define TCLOSE 9 /* A ')' */
#define TPLUS 10 /* A '+' */
#define TERROR 11 /* A lexical error */
#define REGDEP 2 /* Maximum regret depth. */
#define STRINGLEN 1024 /* Maximum length of string token */
/*
* Constants for conditional commands. These describe whether
* we should be executing stuff or not.
*/
#define CANY 0 /* Execute in send or receive mode */
#define CRCV 1 /* Execute in receive mode only */
#define CSEND 2 /* Execute in send mode only */
/*
* Kludges to handle the change from setexit / reset to setjmp / longjmp
*/
#define setexit() 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) ftruncate(fileno(stream), (long) ftell(stream))
/*
* Forward declarations of routine types to keep lint and cc happy.
*/
FILE *Fopen();
FILE *Fdopen();
FILE *Popen();
FILE *collect();
FILE *infix();
FILE *run_editor();
FILE *setinput();
char **unpack();
char *calloc();
char *copy();
char *copyin();
char *detract();
char *expand();
char *getdeadletter();
char *gets();
char *hfield();
char *name1();
char *nameof();
char *nextword();
char *getenv();
char *getname();
char *fgets();
char *ishfield();
char *malloc();
char *mktemp();
char *readtty();
char *reedit();
char *salloc();
char *savestr();
char *skin();
char *snarf();
char *username();
char *value();
char *vcopy();
char *yankword();
off_t fsize();
uid_t getuid();
struct cmd *lex();
struct grouphead *findgroup();
struct name *nalloc();
struct name *cat();
struct name *delname();
struct name *elide();
struct name *extract();
struct name *gexpand();
struct name *outof();
struct name *put();
struct name *usermap();
struct var *lookup();