/* $OpenBSD: def.h,v 1.17 2022/01/28 06:18:41 guenther Exp $ */ /* $NetBSD: def.h,v 1.9 1996/12/28 07:11:00 tls 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 * $OpenBSD: def.h,v 1.17 2022/01/28 06:18:41 guenther Exp $ */ /* * Mail -- a mail program * * Author: Kurt Shoens (UCB) March 25, 1978 */ #ifndef MAIL_DEF_H #define MAIL_DEF_H #include <sys/stat.h> #include <ctype.h> #include <err.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <termios.h> #include <unistd.h> #include <limits.h> #include <vis.h> #include "pathnames.h" #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 PATH_MAX /* 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 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 */ int m_offset; /* offset in block of message */ int m_block; /* block number of this message */ int m_size; /* Bytes in the message */ int 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 */ union { int (*c_func1)(void *); int (*c_func2)(void *, void *); } cfunc; /* Implementor of the command */ #define c_func cfunc.c_func1 #define c_func2 cfunc.c_func2 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 0x0001 /* Message list type */ #define STRLIST 0x0002 /* A pure string */ #define RAWLIST 0x0004 /* Shell string list */ #define NOLIST 0x0008 /* Just plain 0 */ #define NDMLIST 0x0010 /* Message list, no defaults */ #define P 0x0020 /* Autoprint dot after command */ #define I 0x0040 /* Interactive command bit */ #define M 0x0080 /* Legal from send mode bit */ #define W 0x0100 /* Illegal when read only bit */ #define F 0x0200 /* Is a conditional command */ #define T 0x0400 /* Is a transparent command */ #define R 0x0800 /* 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_from; /* User-specified "From:" 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 its 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. */ }; /* * 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 */ /* * 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) do { \ (void)fflush(stream); \ (void)ftruncate(fileno(stream), (off_t)ftell(stream)); \ } while(0) #endif /* MAIL_DEF_H */
