[unix-history] / usr / src / usr.bin / mail / def.h

#

#include "local.h"
#include <sys/types.h>
#include <signal.h>
#include <stdio.h>

#undef isalpha
#undef isdigit

/*
 * Sccs Id = "@(#)def.h	2.2 %G%";
 */

/*
 * 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	BUFSIZ		/* 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	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 */
	unsigned	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 */

/*
 * 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		/* Illegal 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 {
	char	*h_to;			/* Dynamic "To:" string */
	char	*h_subject;		/* Subject string */
	char	*h_cc;			/* Carbon copies string */
	char	*h_bcc;			/* Blind carbon copies */
	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 */
	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 */

/*
 * 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	REGDEP	2			/* Maximum regret depth. */
#define	STRINGLEN	64		/* 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)

/*
 * VM/UNIX has a vfork system call which is faster than forking.  If we
 * don't have it, fork(2) will do . . .
 */

#ifndef VMUNIX
#define	vfork()	fork()
#endif

/*
 * Forward declarations of routine types to keep lint and cc happy.
 */

FILE	*Fdopen();
FILE	*collect();
FILE	*infix();
FILE	*mesedit();
FILE	*mespipe();
FILE	*popen();
FILE	*setinput();
char	**unpack();
char	*addto();
char	*arpafix();
char	*calloc();
char	*copy();
char	*copyin();
char	*detract();
char	*expand();
char	*gets();
char	*hfield();
char	*index();
char	*name1();
char	*nameof();
char	*nextword();
char	*getenv();
char	*getfilename();
char	*hcontents();
char	*netmap();
char	*netname();
char	*readtty();
char	*reedit();
char	*rename();
char	*revarpa();
char	*rindex();
char	*rpair();
char	*salloc();
char	*savestr();
char	*savestr();
char	*skin();
char	*snarf();
char	*value();
char	*vcopy();
char	*yankword();
off_t	fsize();
int	(*sigset())();
struct	cmd	*lex();
struct	grouphead	*findgroup();
struct	name	*cat();
struct	name	*delname();
struct	name	*elide();
struct	name	*extract();
struct	name	*gexpand();
struct	name	*map();
struct	name	*outof();
struct	name	*put();
struct	name	*usermap();
struct	name	*verify();
struct	var	*lookup();
unsigned	int	msize();
Commit	Line	Data
43101bb9 KS	1	#
	2
	3	#include "local.h"
	4	#include <sys/types.h>
	5	#include <signal.h>
	6	#include <stdio.h>
	7
	8	#undef isalpha
	9	#undef isdigit
	10
	11	/*
74f7ed29	12	* Sccs Id = "@(#)def.h 2.2 %G%";
43101bb9 KS	13	*/
	14
	15	/*
	16	* Mail -- a mail program
	17	*
	18	* Commands are:
	19	* t <message list> print out these messages
	20	* r <message list> reply to messages
	21	* m <user list> mail to users (analogous to send)
	22	* e <message list> edit messages
	23	* c [directory] chdir to dir or home if none
	24	* x exit quickly
	25	* w <message list> file save messages in file
	26	* q quit, save remaining stuff in mbox
	27	* d <message list> delete messages
	28	* u <message list> undelete messages
	29	* h print message headers
	30	*
	31	* Author: Kurt Shoens (UCB) March 25, 1978
	32	*/
	33
	34
	35	#define ESCAPE '~' /* Default escape for sending */
	36	#define NMLSIZE 20 /* max names in a message list */
	37	#define PATHSIZE 35 /* Size of pathnames throughout */
	38	#define NAMESIZE 20 /* Max size of user name */
	39	#define HSHSIZE 19 /* Hash size for aliases and vars */
	40	#define HDRFIELDS 3 /* Number of header fields */
74f7ed29	41	#define LINESIZE BUFSIZ /* max readable line width */
43101bb9 KS	42	#define SCREEN 18 /* screen size in lines (effective) */
	43	#define STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */
	44	#define MAXARGC 20 /* Maximum list of raw strings */
	45	#define NOSTR ((char ) 0) / Null string pointer */
	46	#define MAXEXP 25 /* Maximum expansion of aliases */
	47	#define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
	48
	49	struct message {
	50	short m_flag; /* flags, see below */
	51	short m_block; /* block number of this message */
	52	short m_offset; /* offset in block of message */
	53	unsigned m_size; /* Bytes in the message */
	54	short m_lines; /* Lines in the message */
	55	};
	56
	57	/*
	58	* flag bits.
	59	*/
	60
8a23b6e3 KS	61	#define MUSED (1<<0) /* entry is used, but this bit isn't */
	62	#define MDELETED (1<<1) /* entry has been deleted */
	63	#define MSAVED (1<<2) /* entry has been saved */
	64	#define MTOUCH (1<<3) /* entry has been noticed */
	65	#define MPRESERVE (1<<4) /* keep entry in sys mailbox */
	66	#define MMARK (1<<5) /* message is marked! */
	67	#define MODIFY (1<<6) /* message has been modified */
	68	#define MNEW (1<<7) /* message has never been seen */
	69	#define MREAD (1<<8) /* message has been read sometime. */
	70	#define MSTATUS (1<<9) /* message status has changed */
	71	#define MBOX (1<<10) /* Send this to mbox, regardless */
43101bb9 KS	72
	73	/*
	74	* Format of the command description table.
	75	* The actual table is declared and initialized
	76	* in lex.c
	77	*/
	78
	79	struct cmd {
	80	char c_name; / Name of command */
	81	int (c_func)(); / Implementor of the command */
	82	short c_argtype; /* Type of arglist (see below) */
	83	short c_msgflag; /* Required flags of messages */
	84	short c_msgmask; /* Relevant flags of messages */
	85	};
	86
	87	/* Yechh, can't initialize unions */
	88
	89	#define c_minargs c_msgflag /* Minimum argcount for RAWLIST */
	90	#define c_maxargs c_msgmask /* Max argcount for RAWLIST */
	91
	92	/*
	93	* Argument types.
	94	*/
	95
	96	#define MSGLIST 0 /* Message list type */
	97	#define STRLIST 1 /* A pure string */
	98	#define RAWLIST 2 /* Shell string list */
	99	#define NOLIST 3 /* Just plain 0 */
	100	#define NDMLIST 4 /* Message list, no defaults */
	101
	102	#define P 040 /* Autoprint dot after command */
	103	#define I 0100 /* Interactive command bit */
	104	#define M 0200 /* Illegal from send mode bit */
6fff2fd5	105	#define W 0400 /* Illegal when read only bit */
726904d6	106	#define F 01000 /* Is a conditional command */
6c0822ea	107	#define T 02000 /* Is a transparent command */
a642148b	108	#define R 04000 /* Cannot be called from collect */
43101bb9 KS	109
	110	/*
	111	* Oft-used mask values
	112	*/
	113
	114	#define MMNORM (MDELETED\|MSAVED)/* Look at both save and delete bits */
	115	#define MMNDEL MDELETED /* Look only at deleted bit */
	116
	117	/*
	118	* Structure used to return a break down of a head
	119	* line (hats off to Bill Joy!)
	120	*/
	121
	122	struct headline {
	123	char l_from; / The name of the sender */
	124	char l_tty; / His tty string (if any) */
	125	char l_date; / The entire date string */
	126	};
	127
	128	#define GTO 1 /* Grab To: line */
	129	#define GSUBJECT 2 /* Likewise, Subject: line */
	130	#define GCC 4 /* And the Cc: line */
	131	#define GBCC 8 /* And also the Bcc: line */
	132	#define GMASK (GTO\|GSUBJECT\|GCC\|GBCC)
	133	/* Mask of places from whence */
	134
	135	#define GNL 16 /* Print blank line after */
	136	#define GDEL 32 /* Entity removed from list */
	137	#define GCOMMA 64 /* detract puts in commas */
	138
	139	/*
	140	* Structure used to pass about the current
	141	* state of the user-typed message header.
	142	*/
	143
	144	struct header {
	145	char h_to; / Dynamic "To:" string */
	146	char h_subject; / Subject string */
	147	char h_cc; / Carbon copies string */
	148	char h_bcc; / Blind carbon copies */
	149	int h_seq; /* Sequence for optimization */
	150	};
	151
	152	/*
	153	* Structure of namelist nodes used in processing
	154	* the recipients of mail and aliases and all that
	155	* kind of stuff.
	156	*/
	157
	158	struct name {
	159	struct name n_flink; / Forward link in list. */
	160	struct name n_blink; / Backward list link */
	161	short n_type; /* From which list it came */
	162	char n_name; / This fella's name */
	163	};
	164
	165	/*
	166	* Structure of a variable node. All variables are
	167	* kept on a singly-linked list of these, rooted by
	168	* "variables"
	169	*/
	170
	171	struct var {
	172	struct var v_link; / Forward link to next variable */
173	char v_name; / The variable's name */
174	char v_value; / And it's current value */
175	};
176
177	struct group {
178	struct group ge_link; / Next person in this group */
179	char ge_name; / This person's user name */
180	};
181
182	struct grouphead {
183	struct grouphead g_link; / Next grouphead in list */
184	char g_name; / Name of this group */
185	struct group g_list; / Users in group. */
186	};
187
188	#define NIL ((struct name ) 0) / The nil pointer for namelists */
189	#define NONE ((struct cmd ) 0) / The nil pointer to command tab */
190	#define NOVAR ((struct var ) 0) / The nil pointer to variables */
191	#define NOGRP ((struct grouphead ) 0)/ The nil grouphead pointer */
192	#define NOGE ((struct group ) 0) / The nil group pointer */
193
194	/*
195	* Token values returned by the scanner used for argument lists.
196	* Also, sizes of scanner-related things.
197	*/
198
199	#define TEOL 0 /* End of the command line */
200	#define TNUMBER 1 /* A message number */
201	#define TDASH 2 /* A simple dash */
202	#define TSTRING 3 /* A string (possibly containing -) */
203	#define TDOT 4 /* A "." */
204	#define TUP 5 /* An "^" */
205	#define TDOLLAR 6 /* A "$" */
206	#define TSTAR 7 /* A "" /
207	#define TOPEN 8 /* An '(' */
208	#define TCLOSE 9 /* A ')' */
209	#define TPLUS 10 /* A '+' */
210
211	#define REGDEP 2 /* Maximum regret depth. */
2d5b401e	212	#define STRINGLEN 64 /* Maximum length of string token */
43101bb9	213
6c0822ea KS	214	/*
	215	* Constants for conditional commands. These describe whether
	216	* we should be executing stuff or not.
	217	*/
	218
	219	#define CANY 0 /* Execute in send or receive mode */
	220	#define CRCV 1 /* Execute in receive mode only */
	221	#define CSEND 2 /* Execute in send mode only */
	222
43101bb9 KS	223	/*
	224	* Kludges to handle the change from setexit / reset to setjmp / longjmp
	225	*/
	226
	227	#define setexit() setjmp(srbuf)
	228	#define reset(x) longjmp(srbuf, x)
	229
	230	/*
	231	* VM/UNIX has a vfork system call which is faster than forking. If we
	232	* don't have it, fork(2) will do . . .
	233	*/
	234
	235	#ifndef VMUNIX
	236	#define vfork() fork()
	237	#endif
	238
	239	/*
	240	* Forward declarations of routine types to keep lint and cc happy.
	241	*/
	242
	243	FILE *Fdopen();
	244	FILE *collect();
	245	FILE *infix();
	246	FILE *mesedit();
	247	FILE *mespipe();
0dfdcc73	248	FILE *popen();
43101bb9 KS	249	FILE *setinput();
	250	char **unpack();
	251	char *addto();
	252	char *arpafix();
	253	char *calloc();
	254	char *copy();
	255	char *copyin();
	256	char *detract();
	257	char *expand();
	258	char *gets();
	259	char *hfield();
	260	char *index();
d1cc2242	261	char *name1();
43101bb9 KS	262	char *nameof();
	263	char *nextword();
	264	char *getenv();
6fff2fd5	265	char *getfilename();
43101bb9 KS	266	char *hcontents();
	267	char *netmap();
	268	char *netname();
	269	char *readtty();
5959bcea	270	char *reedit();
43101bb9 KS	271	char *rename();
	272	char *revarpa();
	273	char *rindex();
	274	char *rpair();
	275	char *salloc();
	276	char *savestr();
	277	char *savestr();
d1cc2242	278	char *skin();
43101bb9 KS	279	char *snarf();
	280	char *value();
	281	char *vcopy();
	282	char *yankword();
	283	off_t fsize();
91a7b595	284	int (*sigset())();
43101bb9 KS	285	struct cmd *lex();
	286	struct grouphead *findgroup();
	287	struct name *cat();
	288	struct name *delname();
	289	struct name *elide();
	290	struct name *extract();
	291	struct name *gexpand();
	292	struct name *map();
	293	struct name *outof();
	294	struct name *put();
	295	struct name *usermap();
	296	struct name *verify();
	297	struct var *lookup();
	298	unsigned int msize();