2BSD/src/Mail/def.h
/* Copyright (c) 1979 Regents of the University of California */
#
#include <local.h>
#include <sys/types.h>
#include <signal.h>
#include <stdio.h>
#undef isalpha
#undef isdigit
/*
* Mail -- a mail program
*
* Commands are:
* t <message list> print out these messages
* r <message list> reply to messages
* m <user list> mail to users (analogous to send)
* e <message list> edit messages
* c [directory] chdir to dir or home if none
* x exit quickly
* w <message list> file save messages in file
* q quit, save remaining stuff in mbox
* d <message list> delete messages
* u <message list> undelete messages
* h print message headers
*
* Author: Kurt Shoens (UCB) March 25, 1978
*/
#define ESCAPE '~' /* Default escape for sending */
#define NMLSIZE 20 /* max names in a message list */
#define PATHSIZE 35 /* Size of pathnames throughout */
#define NAMESIZE 20 /* Max size of user name */
#define HSHSIZE 19 /* Hash size for aliases and vars */
#define HDRFIELDS 3 /* Number of header fields */
#define LINESIZE 512 /* max readable line width */
#define SCREEN 18 /* screen size in lines (effective) */
#define STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */
#define MAXARGC 20 /* Maximum list of raw strings */
#define NOSTR ((char *) 0) /* Null string pointer */
#define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
struct message {
flag_t m_flag; /* flags, see below */
int m_block; /* block number of this message */
int m_offset; /* offset in block of message */
unsigned m_size; /* Bytes in the message */
int m_lines; /* Lines in the message */
};
/*
* flag bits.
*/
#define MUSED 1 /* entry is used, but this bit isn't */
#define MDELETED 2 /* entry has been deleted */
#define MSAVED 4 /* entry has been saved */
#define MTOUCH 8 /* entry has been noticed */
#define MPRESERVE 16 /* keep entry in sys mailbox */
#define MMARK 32 /* message is marked! */
#define MODIFY 64 /* message has been modified */
/*
* 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 */
flag_t c_argtype; /* Type of arglist (see below) */
flag_t c_msgflag; /* Required flags of messages */
flag_t 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 /* Illegal from send mode bit */
/*
* 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 GSUBJ 2 /* Likewise, Subj: line */
#define GCC 4 /* And the Cc: line */
/*
* Structure used to pass about the current
* state of the user-typed message header.
*/
struct header {
char *h_to; /* Dynamic "To:" string */
char *h_subj; /* Subject string */
char *h_cc; /* Carbon copies string */
int h_seq; /* Sequence for optimization */
};
/*
* 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 */
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 */
/*
* 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 REGDEP 2 /* Maximum regret depth. */
#define STRINGLEN 16 /* Maximum length of string token */
/*
* Forward declarations of routine types to keep lint and cc happy.
*/
FILE *collect();
FILE *infix();
FILE *mesedit();
FILE *mespipe();
FILE *setinput();
char **unpack();
char *addto();
char *calloc();
char *copy();
char *gets();
char *hfield();
char *nameof();
char *nextword();
char *getenv();
char *readtty();
char *salloc();
char *savestr();
char *savestr();
char *snarf();
char *value();
char *vcopy();
char *yankword();
off_t fsize();
struct cmd *lex();
struct grouphead *findgroup();
struct name *cat();
struct name *elide();
struct name *extract();
struct name *map();
struct name *outof();
struct name *put();
struct name *usermap();
struct name *verify();
struct var *lookup();
unsigned int msize();