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/* header.h */
/* NOTICE
*
* Copyright (c) 1990,1992,1993 Britt Yenne. All rights reserved.
*
* This software is provided AS-IS. The author gives no warranty,
* real or assumed, and takes no responsibility whatsoever for any
* use or misuse of this software, or any damage created by its use
* or misuse.
*
* This software may be freely copied and distributed provided that
* no part of this NOTICE is deleted or edited in any manner.
*
*/
/* Mail comments or questions to ytalk@austin.eds.com */
#include <sys/types.h>
#ifdef LINUX
# include <linux/param.h>
#else
# include <sys/param.h>
#endif
#include <sys/socket.h>
#include <netinet/in.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#ifdef USE_X11
# include <X11/X.h>
#endif
#define VMAJOR 3 /* major version number */
#define VMINOR 0 /* minor version number */
#define VPATCH 2 /* patch level */
/* ---- YTalk protocols ---- */
/* These protocol numbers are a MAJOR HACK designed to get around the
* fact that old versions of ytalk didn't send any version information
* during handshaking. Nor did they bzero() the unused portions of the
* handshaking structures. Argh! These two protocol numbers were very
* carefully picked... do not add any others and expect them to work.
* Instead, use the "vmajor" and "vminor" fields of the y_parm structure.
*/
#define YTP_OLD 20 /* YTalk versions before 3.0 */
#define YTP_NEW 27 /* YTalk versions 3.0 and up */
/* ---- types ---- */
typedef void * yaddr; /* any 32-bit address */
typedef yaddr yterm; /* terminal cookie */
typedef u_char ychar; /* we use unsigned chars */
#ifdef Y64BIT
typedef u_int ylong; /* unsigned 32-bit */
#else
typedef u_long ylong; /* unsigned 32-bit */
#endif
typedef struct {
u_char w_rows, w_cols; /* window size FOR PROTOCOL YTP_OLD */
char protocol; /* ytalk protocol -- see above */
char pad1; /* zeroed out */
short vmajor, vminor; /* version numbers */
u_short rows, cols; /* his window size over there */
u_short my_rows, my_cols; /* my window size over there */
ylong pid; /* my process id */
char pad[44]; /* zeroed out */
} y_parm;
#define MAXARG 4 /* max ESC sequence arg count */
typedef struct _yuser {
struct _yuser *next; /* next user in group lists */
struct _yuser *unext; /* next user in full user list */
int fd; /* file descriptor */
int output_fd; /* non-zero if output is going to a file */
ylong flags; /* active FL_* flags below */
ychar edit[4]; /* edit characters */
u_short t_rows, t_cols; /* his rows and cols on window over here */
u_short rows, cols; /* his active region rows and cols over here */
y_parm remote; /* remote parms */
ychar **scr; /* screen data */
char bump; /* set if at far right */
ychar old_rub; /* my actual rub character */
char got_esc; /* received an ESC */
ychar key; /* this user's ident letter for menus */
int y, x; /* current cursor position */
int sy, sx; /* saved cursor position */
int sc_top, sc_bot; /* scrolling region */
int region_set; /* set if using a screen region */
char *full_name; /* full name (up to 50 chars) */
char *user_name; /* user name */
char *host_name; /* host name */
char *tty_name; /* tty name */
ylong host_addr; /* host inet address */
int daemon; /* daemon type to use */
ylong l_id, r_id; /* local and remote talkd invite list index */
ylong d_id; /* talk daemon process id -- see socket.c */
ylong last_invite; /* timestamp of last invitation sent */
struct sockaddr_in sock; /* communication socket */
struct sockaddr_in orig_sock; /* original socket -- another sick hack */
u_int av[MAXARG]; /* ESC sequence arguments */
u_int ac; /* ESC sequence arg count */
/* out-of-band data */
int dbuf_size; /* current buffer size */
ychar *dbuf, *dptr; /* buffer base and current pointer */
int drain; /* remaining bytes to drain */
void (*dfunc)(); /* function to call with drained data */
int got_oob; /* got OOB flag */
/* anything below this is available for the terminal interface */
yterm term; /* terminal cookie */
int ty, tx; /* terminal's idea of Y,X (optional) */
#ifdef USE_X11
Window win; /* user's window */
#endif
} yuser;
#define FL_RAW 0x00000001L /* raw input enabled */
#define FL_SCROLL 0x00000002L /* scrolling enabled */
#define FL_WRAP 0x00000004L /* word-wrap enabled */
#define FL_IMPORT 0x00000008L /* auto-import enabled */
#define FL_INVITE 0x00000010L /* auto-invite enabled */
#define FL_RING 0x00000020L /* auto-rering enabled */
#define FL_XWIN 0x00000040L /* X Windows enabled (startup opt) */
#define FL_ASIDE 0x00000080L /* multiple window input/asides */
#define FL_LOCKED 0x40000000L /* flags locked by other end */
/* ---- defines and short-cuts ---- */
#ifdef NOFILE
# define MAX_FILES NOFILE /* max open file descriptors */
#else
# define MAX_FILES 256 /* better to be too high than too low */
#endif
#define CLEAN_INTERVAL 16 /* seconds between calls to house_clean() */
#define MAXBUF 4096 /* buffer size for I/O operations */
#define MAXERR 132 /* error text buffer size */
#define MAXTEXT 50 /* text entry buffer */
#define RUB edit[0]
#define KILL edit[1]
#define WORD edit[2]
#define CLR edit[3]
#define RUBDEF 0xfe
/* ---- Ytalk version 3.* out-of-band data ---- */
/* see comm.c for a description of Ytalk 3.* OOB protocol */
#define V3_OOB 0xfd /* out-of-band marker -- see comm.c */
#define V3_MAXPACK 0xfc /* max OOB packet size -- see comm.c */
#define V3_NAMELEN 16 /* max username length */
#define V3_HOSTLEN 64 /* max hostname length */
typedef struct {
ychar code; /* V3_EXPORT, V3_IMPORT, or V3_ACCEPT */
char filler[3];
ylong host_addr; /* host address */
ylong pid; /* process id */
char name[V3_NAMELEN]; /* user name */
char host[V3_HOSTLEN]; /* host name */
} v3_pack;
#define V3_PACKLEN sizeof(v3_pack)
#define V3_EXPORT 101 /* export a user */
#define V3_IMPORT 102 /* import a user */
#define V3_ACCEPT 103 /* accept a connection from a user */
typedef struct {
ychar code; /* V3_LOCKF or V3_UNLOCKF */
char filler[3];
ylong flags; /* flags */
} v3_flags;
#define V3_FLAGSLEN sizeof(v3_flags)
#define V3_LOCKF 111 /* lock my flags */
#define V3_UNLOCKF 112 /* unlock my flags */
typedef struct {
ychar code; /* V3_YOURWIN, V3_MYWIN, or V3_REGION */
char filler[3];
u_short rows, cols; /* window size */
} v3_winch;
#define V3_WINCHLEN sizeof(v3_winch)
#define V3_YOURWIN 121 /* your window size changed over here */
#define V3_MYWIN 122 /* my window size changed over here */
#define V3_REGION 123 /* my window region changed over here */
/* ---- Ytalk version 2.* out-of-band data ---- */
#define V2_NAMELEN 12
#define V2_HOSTLEN 64
typedef struct {
ychar code; /* one of the V2_?? codes below */
char filler;
char name[V2_NAMELEN]; /* user name */
char host[V2_HOSTLEN]; /* user host */
} v2_pack;
#define V2_PACKLEN sizeof(v2_pack)
#define V2_EXPORT 130 /* export a user */
#define V2_IMPORT 131 /* import a user */
#define V2_ACCEPT 132 /* accept a connection from a user */
#define V2_AUTO 133 /* accept auto invitation */
/* ---- exit codes ---- */
#define YTE_SUCCESS 0 /* successful completion */
#define YTE_INIT 1 /* initialization error */
#define YTE_NO_MEM 2 /* out of memory */
#define YTE_SIGNAL 3 /* fatal signal received */
#define YTE_ERROR 4 /* unrecoverable error */
/* ---- global variables ---- */
extern char *sys_errlist[]; /* system errors */
extern yuser *me; /* just lil' ol' me */
extern yuser *user_list; /* full list of invited/connected users */
extern yuser *connect_list; /* list of connected users */
extern yuser *wait_list; /* list of invited users */
extern yuser *fd_to_user[MAX_FILES]; /* convert file descriptors to users */
extern yuser *key_to_user[128]; /* convert menu ident chars to users */
extern char errstr[MAXERR]; /* temporary string for errors */
extern ylong def_flags; /* default FL_* flags */
extern int user_winch; /* user window/status changed flag */
extern ychar *io_ptr; /* user input pointer */
extern int io_len; /* user input count */
extern int running_process; /* flag: is process running? */
/* ---- some machine compatibility definitions ---- */
#if defined(SYSV)
# define Y_USE_SIGHOLD 1
#endif
extern int errno;
/* ---- global functions ---- */
extern void bail ( /* int */ ); /* main.c */
extern yaddr get_mem ( /* int */ ); /* main.c */
extern char *str_copy ( /* string */ ); /* main.c */
extern yaddr realloc_mem ( /* pointer, int */ ); /* main.c */
extern void show_error ( /* str */ ); /* main.c */
extern void init_term (); /* term.c */
extern void set_terminal_size ( /* fd, rows, cols */ ); /* term.c */
extern void set_terminal_flags ( /* fd */ ); /* term.c */
extern int what_term (); /* term.c */
extern void end_term (); /* term.c */
extern int open_term ( /* yuser, title */ ); /* term.c */
extern void close_term ( /* yuser */ ); /* term.c */
extern void addch_term ( /* yuser, ch */ ); /* term.c */
extern void move_term ( /* yuser, y, x */ ); /* term.c */
extern void clreol_term ( /* yuser */ ); /* term.c */
extern void clreos_term ( /* yuser */ ); /* term.c */
extern void scroll_term ( /* yuser */ ); /* term.c */
extern void rev_scroll_term ( /* yuser */ ); /* term.c */
extern void flush_term ( /* yuser */ ); /* term.c */
extern void rub_term ( /* yuser */ ); /* term.c */
extern int word_term ( /* yuser */ ); /* term.c */
extern void kill_term ( /* yuser */ ); /* term.c */
extern void tab_term ( /* yuser */ ); /* term.c */
extern void newline_term ( /* yuser */ ); /* term.c */
extern void add_line_term ( /* yuser, num */ ); /* term.c */
extern void del_line_term ( /* yuser, num */ ); /* term.c */
extern void add_char_term ( /* yuser, num */ ); /* term.c */
extern void del_char_term ( /* yuser, num */ ); /* term.c */
extern void redraw_term ( /* yuser, start_row */ ); /* term.c */
extern void resize_win ( /* yuser, h, w */ ); /* term.c */
extern void set_win_region ( /* yuser, h, w */ ); /* term.c */
extern void end_win_region ( /* yuser */ ); /* term.c */
extern void set_scroll_region( /* yuser, top, bottom */ ); /* term.c */
extern void msg_term ( /* yuser, str */ ); /* term.c */
extern void spew_term ( /* yuser, fd, rows, cols */ ); /* term.c */
extern int center ( /* width, n */ ); /* term.c */
extern void redraw_all_terms(); /* term.c */
extern void set_raw_term (); /* term.c */
extern void set_cooked_term (); /* term.c */
extern int term_does_asides(); /* term.c */
extern void init_user (); /* user.c */
extern yuser *new_user ( /* name, host, tty */ ); /* user.c */
extern void free_user ( /* yuser */ ); /* user.c */
extern yuser *find_user ( /* name, host_addr, pid */ ); /* user.c */
extern void init_fd (); /* fd.c */
extern void add_fd ( /* fd, func */ ); /* fd.c */
extern void remove_fd ( /* fd */ ); /* fd.c */
extern int full_read ( /* fd, buf, len */ ); /* fd.c */
extern void main_loop (); /* fd.c */
extern void input_loop (); /* fd.c */
extern void invite ( /* username, announce */ ); /* comm.c */
extern void house_clean (); /* comm.c */
extern void send_winch ( /* yuser */ ); /* comm.c */
extern void send_region (); /* comm.c */
extern void send_end_region (); /* comm.c */
extern void send_users ( /* buf, len */ ); /* comm.c */
extern void show_input ( /* user, buf, len */ ); /* comm.c */
extern void my_input ( /* buf, len */ ); /* comm.c */
extern void lock_flags ( /* flags */ ); /* comm.c */
extern void unlock_flags (); /* comm.c */
extern void init_socket (); /* socket.c */
extern void close_all (); /* socket.c */
extern int send_dgram ( /* user, type */ ); /* socket.c */
extern int send_auto ( /* type */ ); /* socket.c */
extern void kill_auto (); /* socket.c */
extern int newsock ( /* yuser */ ); /* socket.c */
extern int connect_to ( /* yuser */ ); /* socket.c */
extern ylong get_host_addr ( /* hostname */ ); /* socket.c */
extern char *host_name ( /* addr */ ); /* socket.c */
extern void readdress_host ( /* from, to, on */ ); /* socket.c */
extern void read_ytalkrc (); /* rc.c */
extern void execute ( /* command */ ); /* exec.c */
extern void update_exec (); /* exec.c */
extern void kill_exec (); /* exec.c */
extern void winch_exec (); /* exec.c */
/* EOF */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.