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- /*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#)def.h 5.18 (Berkeley) 8/17/88
- */
-
- #include <sys/param.h> /* includes <sys/types.h> */
- #include <sys/signal.h>
- #include <stdio.h>
- #include <sgtty.h>
- #include <ctype.h>
- #include <strings.h>
- #include "local.h"
-
- /*
- * Mail -- a mail program
- *
- * Author: Kurt Shoens (UCB) March 25, 1978
- */
-
-
- #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 *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();
-