Path: utzoo!mnetor!uunet!ccicpg!felix!dhw68k!macintosh
From: jdb@mordor.s1.gov (John Bruner)
Newsgroups: comp.sources.mac
Subject: UW v4.2 (part 4 of 9)
Message-ID: <6538@dhw68k.cts.com>
Date: 6 Apr 88 02:12:37 GMT
References: <6493@dhw68k.cts.com> <6497@dhw68k.cts.com> <6515@dhw68k.cts.com>
Sender: macintosh@dhw68k.cts.com
Organization: Lawrence Livermore National Laboratory, S-1 Project
Lines: 1430
Approved: bytebug@dhw68k.cts.com (Roger L. Long)

[UW v4.2 - part 4 of 9]

---
#! /bin/sh
# This is a shell archive, meaning:
# 1. Remove everything above the #! /bin/sh line.
# 2. Save the resulting text in a file.
# 3. Execute the file with /bin/sh (not csh) to create the files:
#	lib/Makefile_4.2
#	lib/Makefile_4.3
#	lib/uw_close.c
#	lib/uw_cmd.c
#	lib/uw_detach.c
#	lib/uw_fork.c
#	lib/uw_gpos.c
#	lib/uw_gtitle.c
#	lib/uw_gtype.c
#	lib/uw_gvis.c
#	lib/uw_gwsize.c
#	lib/uw_kill.c
#	lib/uw_netadj.c
#	lib/uw_new.c
#	lib/uw_optcmd.c
# This archive created: Mon Apr  4 07:51:53 1988
# By:	Roger L. Long (macintosh@dhw68k.cts.com)
export PATH; PATH=/bin:$PATH
if test ! -d lib
then
	echo shar: mkdir lib
	mkdir lib
fi
echo shar: extracting "'lib/Makefile_4.2'" '(1710 characters)'
if test -f 'lib/Makefile_4.2'
then
	echo shar: will not over-write existing file "'lib/Makefile_4.2'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/Makefile_4.2'
X#! /bin/make -f
X#
X#	uw library makefile (4.2BSD)
X#
X# INCDIR names the directory in which header files are located.
X# SERVERDIR names the directory containing the server source.
X# SERVER_OBJS names the object files derived from sources in SERVERDIR.
X# OBJECTS names all of the object files required for the library.
X#
XINCDIR	=	../h
X
XSERVERDIR =	../server
X
XSERVER_OBJS =	$(SERVERDIR)/openpty.o $(SERVERDIR)/uw_env.o
X
XOBJECTS	=	uw_cmd.o uw_close.o uw_detach.o uw_fork.o uw_kill.o \
X		uw_netadj.o uw_new.o uw_optcmd.o uw_optfn.o uw_options.o \
X		uw_perror.o uw_ttype.o \
X		uw_rsetopt.o uw_shell.o \
X		uw_gvis.o uw_gtype.o uw_gtitle.o uw_gwsize.o uw_gpos.o \
X		$(SERVER_OBJS)
X
XSOURCES	=	`echo $(OBJECTS) | sed -e 's/\\.o/\\.c/g'`
X
XDEFINES	=	`cat ../DEFINES`
X
XCFLAGS	=	-O -I$(INCDIR) $(DEFINES)
X
XTARGET	=	libuw.a
X
X$(TARGET):	$(OBJECTS)
X	ar cr $(TARGET) `lorder $(OBJECTS) | tsort`
X	ranlib $(TARGET)
X	-if [ ! -f uwlib.a ];then ln -s libuw.a uwlib.a;fi
X
X$(SERVER_OBJS):
X	cd $(SERVERDIR); make `basename $@`
X
Xlint:
X	lint -uhbx -I$(INCDIR) $(DEFINES) $(SOURCES)
X
Xtags:
X	ctags $(SOURCES)
X
Xdepend: 
X	grep '^#include' $(SOURCES) | \
X	sed -e '/</d' \
X	    -e 's/:[^"]*"\([^"]*\)".*/: ..\/h\/\1/' \
X	    -e 's,^../[a-zA-Z0-9]*/\([^\.]*\)\.[cs],\1.o \1.L,' | \
X	awk ' { if ($$1 != prev) { print rec; rec = $$0; prev = $$1; } \
X		else { if (length(rec $$3) > 78) { print rec; rec = $$0; } \
X		       else rec = rec " " $$3 } } \
X	      END { print rec } ' > makedep
X	echo '/^# DO NOT DELETE THIS LINE/+1,$$d' >eddep
X	echo '$$r makedep' >>eddep
X	echo 'w' >>eddep
X	cp Makefile Makefile.bak
X	ex - Makefile < eddep
X	rm eddep makedep
X
Xclean:
X	-rm *.o
X
X# DO NOT DELETE THIS LINE (or the following blank line) -- make depend uses it
X
SHAR_EOF
if test 1710 -ne "`wc -c < 'lib/Makefile_4.2'`"
then
	echo shar: error transmitting "'lib/Makefile_4.2'" '(should have been 1710 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/Makefile_4.3'" '(1678 characters)'
if test -f 'lib/Makefile_4.3'
then
	echo shar: will not over-write existing file "'lib/Makefile_4.3'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/Makefile_4.3'
X#! /bin/make -f
X#
X#	uw library makefile (4.3BSD)
X#
X# INCDIR names the directory in which header files are located.
X# SERVERDIR names the directory containing the server source.
X# SERVER_OBJS names the object files derived from sources in SERVERDIR.
X# OBJECTS names all of the object files required for the library.
X#
X
XINCDIR	=	../h
X
XSERVERDIR =	../server
X
XSERVER_OBJS =	$(SERVERDIR)/openpty.o $(SERVERDIR)/uw_env.o
X
XOBJECTS	=	uw_cmd.o uw_close.o uw_detach.o uw_fork.o uw_kill.o \
X		uw_netadj.o uw_new.o uw_optcmd.o uw_optfn.o uw_options.o \
X		uw_perror.o uw_ttype.o \
X		uw_rsetopt.o uw_shell.o \
X		uw_gvis.o uw_gtype.o uw_gtitle.o uw_gwsize.o uw_gpos.o \
X		$(SERVER_OBJS)
X
XSOURCES	=	`echo $(OBJECTS) | sed -e 's/\\.o/\\.c/g'`
X
XDEFINES	=	`cat ../DEFINES`
X
XCFLAGS	=	-O -I$(INCDIR) $(DEFINES)
X
XTARGET	=	libuw.a
X
X$(TARGET):	$(OBJECTS)
X	ar cr $(TARGET) `lorder $(OBJECTS) | tsort`
X	ranlib $(TARGET)
X	-if [ ! -f uwlib.a ];then ln -s libuw.a uwlib.a;fi
X
X$(SERVER_OBJS):
X	cd $(SERVERDIR); make `basename $@`
X
Xlint:
X	lint -uhbx -I$(INCDIR) $(DEFINES) $(SOURCES)
X
Xtags:
X	ctags $(SOURCES)
X
Xdepend: 
X	$(CC) -M -I$(INCDIR) $(DEFINES) $(SOURCES) | \
X	sed -e ':loop' \
X	    -e 's/\.\.\/[^ /]*\/\.\./../' \
X	    -e 't loop' | \
X	awk ' { if ($$1 != prev) { print rec; rec = $$0; prev = $$1; } \
X		else { if (length(rec $$2) > 78) { print rec; rec = $$0; } \
X		       else rec = rec " " $$2 } } \
X	      END { print rec } ' >> makedep
X	echo '/^# DO NOT DELETE THIS LINE/+1,$$d' >eddep
X	echo '$$r makedep' >>eddep
X	echo 'w' >>eddep
X	cp Makefile Makefile.bak
X	ex - Makefile < eddep
X	rm eddep makedep
X
Xclean:
X	-rm *.o
X
X# DO NOT DELETE THIS LINE (or the following blank line) -- make depend uses it
X
SHAR_EOF
if test 1678 -ne "`wc -c < 'lib/Makefile_4.3'`"
then
	echo shar: error transmitting "'lib/Makefile_4.3'" '(should have been 1678 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_close.c'" '(575 characters)'
if test -f 'lib/uw_close.c'
then
	echo shar: will not over-write existing file "'lib/uw_close.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_close.c'
X/*
X *	uw library - uw_close
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include "uwlib.h"
X
Xuw_close(uwin)
XUWIN uwin;
X{
X	/*
X	 * Close all connections to an existing window, but do not kill it.
X	 */
X	if (uwin != (UWIN)0) {
X		if (uwin->uwi_ctlfd >= 0)
X			(void)uw_detach(uwin);
X		if (uwin->uwi_datafd >= 0)
X			(void)close(uwin->uwi_datafd);
X		free((char *)uwin);
X		return(0);
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 575 -ne "`wc -c < 'lib/uw_close.c'`"
then
	echo shar: error transmitting "'lib/uw_close.c'" '(should have been 575 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_cmd.c'" '(799 characters)'
if test -f 'lib/uw_cmd.c'
then
	echo shar: will not over-write existing file "'lib/uw_cmd.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_cmd.c'
X/*
X *	uw library - uw_cmd
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X
X#include "uwlib.h"
X
Xuwid_t
Xuw_cmd(wtype, file, argv)
Xuwtype_t wtype;
Xchar *file;
Xchar **argv;
X{
X	register uwid_t uwid;
X
X	/*
X	 * Create a new window (using uw_fork()) and run the specified
X	 * command in it.  Returns the window ID of the new window
X	 * (or -1 if the window creation failed).  There is no way to
X	 * determine if the executed command failed (e.g. if the
X	 * executable file did not exist).
X	 */
X	if ((uwid = uw_fork(wtype, (int *)0)) == 0) {
X		(void)execvp(file, argv);
X		uwerrno = UWE_ERRNO;
X		perror(file);
X		_exit(1);
X		/*NOTREACHED*/
X	} else
X		return(uwid);
X}
SHAR_EOF
if test 799 -ne "`wc -c < 'lib/uw_cmd.c'`"
then
	echo shar: error transmitting "'lib/uw_cmd.c'" '(should have been 799 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_detach.c'" '(677 characters)'
if test -f 'lib/uw_detach.c'
then
	echo shar: will not over-write existing file "'lib/uw_detach.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_detach.c'
X/*
X *	uw library - uw_detach
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include "uwlib.h"
X
Xuw_detach(uwin)
XUWIN uwin;
X{
X	/*
X	 * Detach the control file descriptor for a window, while still
X	 * retaining access to the data file descriptor.
X	 */
X	if (uwin != (UWIN)0) {
X		if (uwin->uwi_ctlfd >= 0) {
X			uw_optdone(uwin->uwi_ctlfd);
X			(void)close(uwin->uwi_ctlfd);
X			uwin->uwi_ctlfd = -1;
X			return(0);
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_NOCTL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 677 -ne "`wc -c < 'lib/uw_detach.c'`"
then
	echo shar: error transmitting "'lib/uw_detach.c'" '(should have been 677 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_fork.c'" '(4704 characters)'
if test -f 'lib/uw_fork.c'
then
	echo shar: will not over-write existing file "'lib/uw_fork.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_fork.c'
X/*
X *	uw library - uw_fork
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include <sys/types.h>
X#include <sys/socket.h>
X#include <sys/un.h>
X#include <sys/ioctl.h>
X#include <sys/uio.h>
X#include <sys/file.h>
X#include <strings.h>
X#include <signal.h>
X#include "openpty.h"
X
X#include "uwlib.h"
X
Xextern char *malloc();
Xextern char *getenv();
X
Xuwid_t
Xuw_fork(wtype, pidp)
Xuwtype_t wtype;
Xint *pidp;
X{
X	register int pid;
X	register int sd;
X	register struct uwipc *uwip;
X	register uwid_t wid;
X	auto int fd;
X	char *portal;
X	int lmode, ldisc;
X	struct sgttyb sg;
X	struct tchars tc;
X	struct ltchars ltc;
X	struct iovec iov;
X	struct msghdr msg;
X	struct sockaddr_un sa;
X	struct ptydesc pt;
X	char idstr[20];
X	char *env[2];
X	extern char *ltoa();
X
X	/*
X	 * Create a new window attached to a pseudo-terminal.  This routine
X	 * returns twice -- once in the parent and once in the (new) child.
X	 * The parent receives the window ID of the child (or -1 if the
X	 * window creation failed).  Zero is returned to the child.
X	 * If "pidp" is a non-NULL pointer, the process ID from the fork()
X	 * is stored there.
X	 */
X
X	/*
X	 * Get the terminal configuration for this tty.  For now we
X	 * assume that "/dev/tty" is defined.  Eventually we'll have to
X	 * provide defaults in case it is not.
X	 */
X	if ((fd = open("/dev/tty", O_RDWR)) >= 0) {
X		(void)ioctl(fd, (int)TIOCGETP, (char *)&sg);
X		(void)ioctl(fd, (int)TIOCGETC, (char *)&tc);
X		(void)ioctl(fd, (int)TIOCGLTC, (char *)&ltc);
X		(void)ioctl(fd, (int)TIOCLGET, (char *)&lmode);
X		(void)ioctl(fd, (int)TIOCGETD, (char *)&ldisc);
X		(void)close(fd);
X	} else {
X		/* ... */
X	}
X
X	/*
X	 * Create a UNIX-domain socket.
X	 */
X	if (!(portal=getenv("UW_UIPC"))) {
X		uwerrno = UWE_NXSERV;
X		return(-1);
X	}
X
X	if ((sd=socket(AF_UNIX, SOCK_DGRAM, 0)) < 0) {
X		uwerrno = UWE_ERRNO;
X		return(-1);
X	}
X	sa.sun_family = AF_UNIX;
X	(void)strncpy(sa.sun_path, portal, sizeof sa.sun_path-1);
X	sa.sun_path[sizeof sa.sun_path-1] = '\0';
X
X
X	/*
X	 * Obtain a pseudo-tty and construct the datagram we will send later.
X	 */
X	if (openpty(&pt) < 0) {
X		uwerrno = UWE_ERRNO;
X		return(-1);
X	}
X	uwip = (struct uwipc *)malloc(sizeof(struct uwipc)+strlen(pt.pt_pname));
X	env[0] = malloc(sizeof "UW_ID=" + sizeof idstr);
X	if (uwip == (struct uwipc *)0 || env[0] == (char *)0) {
X		uwerrno = UWE_NOMEM;
X		return(-1);
X	}
X	uwip->uwip_cmd = UWC_NEWT;
X	uwip->uwip_len = (char *)&uwip->uwip_newt - (char *)uwip +
X	    sizeof(struct uwnewt) + strlen(pt.pt_pname);
X	uwip->uwip_newt.uwnt_type = wtype;
X	(void)strcpy(uwip->uwip_newt.uwnt_pty, pt.pt_pname);
X
X
X	/* 
X	 * Fork a child process using this pseudo-tty.  Initialize the
X	 * terminal modes on the pseudo-tty to match those of the parent
X	 * tty.  We really want a fork() here, not a vfork().
X	 */
X	while ((pid=fork()) < 0)
X		sleep(5);
X	if (pidp != (int *)0)
X		*pidp = pid;
X	if (pid) {
X		wid = (long)pid << 16;
X		uwip->uwip_newt.uwnt_id = wid;
X	} else {
X		(void)setgid(getgid());
X		(void)setuid(getuid());
X		wid = (long)getpid() << 16;
X		(void)strcat(strcpy(env[0], "UW_ID="),
X		     ltoa(wid, idstr, sizeof idstr));
X		env[1] = (char *)0;
X		env_set(env);
X		(void)signal(SIGTSTP, SIG_IGN);
X		(void)ioctl(open("/dev/tty", 2), (int)TIOCNOTTY, (char *)0);
X		(void)close(open(pt.pt_tname, 0)); /*set new ctrl tty */
X		(void)dup2(pt.pt_tfd, 0);
X		(void)dup2(0, 1);
X		(void)dup2(0, 2);
X		fd = getdtablesize();
X		while (--fd > 2)
X			(void)close(fd);
X		(void)ioctl(fd, (int)TIOCSETD, (char *)&ldisc);
X		(void)ioctl(0, (int)TIOCSETN, (char *)&sg);
X		(void)ioctl(0, (int)TIOCSETC, (char *)&tc);
X		(void)ioctl(0, (int)TIOCSLTC, (char *)&ltc);
X		(void)ioctl(0, (int)TIOCLSET, (char *)&lmode);
X		uwerrno = UWE_NONE;
X		return(0);
X	}
X
X
X	/*
X	 * Pass the file descriptor to the window server.
X	 */
X	iov.iov_base = (char *)uwip;
X	iov.iov_len = uwip->uwip_len;
X	msg.msg_name = (caddr_t)&sa;
X	msg.msg_namelen = sizeof sa.sun_family + strlen(sa.sun_path);
X	msg.msg_iov = &iov;
X	msg.msg_iovlen = 1;
X	msg.msg_accrights = (caddr_t)&pt.pt_pfd;
X	msg.msg_accrightslen = sizeof pt.pt_pfd;
X	if (sendmsg(sd, &msg, 0) < 0) {
X		free((char *)uwip);
X		uwerrno = UWE_ERRNO;
X		return(-1);
X	}
X	free((char *)uwip);
X	uwerrno = UWE_NONE;
X	return(wid);
X}
X
Xstatic
Xchar *
Xltoa(l, buf, buflen)
Xlong l;
Xchar *buf;
Xint buflen;
X{
X	register char *cp;
X	register unsigned long ul;
X	static char digits[] = "0123456789";
X
X	/*
X	 * This routine replaces a call to sprintf() so that the library
X	 * is independent of stdio.
X	 */
X	cp = buf+buflen;
X	*--cp = '\0';
X	ul = l;
X	if (cp > buf) {
X		do {
X			*--cp = digits[ul%10];
X			ul /= 10;
X		} while (cp > buf && ul != 0);
X	}
X	return(cp);
X}
SHAR_EOF
if test 4704 -ne "`wc -c < 'lib/uw_fork.c'`"
then
	echo shar: error transmitting "'lib/uw_fork.c'" '(should have been 4704 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_gpos.c'" '(1224 characters)'
if test -f 'lib/uw_gpos.c'
then
	echo shar: will not over-write existing file "'lib/uw_gpos.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_gpos.c'
X/*
X *	uw library - uw_gpos, uw_spos
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include "uwlib.h"
X
Xuw_gpos(uwin, pp)
Xregister UWIN uwin;
Xregister struct uwpoint *pp;
X{
X	/*
X	 * Get the position of window "uwin" and store it in the point
X	 * whose address is "pp".
X	 */
X	if (uwin != (UWIN)0) {
X		if (pp != (struct uwpoint *)0) {
X			*pp = uwin->uwi_pos;
X			if (uwin->uwi_ctlfd > 0) {
X				return(0);
X			} else {
X				uwerrno = uwin->uwi_uwerr = UWE_NOCTL;
X				return(-1);
X			}
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_INVAL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
X
Xuw_spos(uwin, pp)
Xregister UWIN uwin;
Xstruct uwpoint *pp;
X{
X	union uwoptval optval;
X
X	/*
X	 * Set the position of window "uwin" to "pp".
X	 */
X	if (uwin != (UWIN)0) {
X		if (pp != (struct uwpoint *)0) {
X			uwin->uwi_pos = *pp;
X			optval.uwov_point.v = pp->uwp_v;
X			optval.uwov_point.h = pp->uwp_h;
X			return(uw_optcmd(uwin, UWOP_POS, UWOC_SET, &optval));
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_INVAL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 1224 -ne "`wc -c < 'lib/uw_gpos.c'`"
then
	echo shar: error transmitting "'lib/uw_gpos.c'" '(should have been 1224 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_gtitle.c'" '(1162 characters)'
if test -f 'lib/uw_gtitle.c'
then
	echo shar: will not over-write existing file "'lib/uw_gtitle.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_gtitle.c'
X/*
X *	uw library - uw_gtitle, uw_stitle
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include <strings.h>
X#include "uwlib.h"
X
Xuw_gtitle(uwin, ttl)
Xregister UWIN uwin;
Xuwtitle_t ttl;
X{
X	/*
X	 * Get the title of window "uwin" and put it in "ttl".
X	 */
X	if (uwin != (UWIN)0) {
X		(void)strncpy(ttl, uwin->uwi_title, sizeof(uwtitle_t));
X		if (uwin->uwi_ctlfd > 0) {
X			return(0);
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_NOCTL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
X
Xuw_stitle(uwin, ttl)
Xregister UWIN uwin;
Xuwtitle_t ttl;
X{
X	union uwoptval optval;
X
X	/*
X	 * Set the title of window "uwin" to "ttl".
X	 */
X	if (uwin != (UWIN)0) {
X		(void)strncpy(uwin->uwi_title, ttl, sizeof uwin->uwi_title);
X		uwin->uwi_title[sizeof uwin->uwi_title - 1] = '\0';
X		(void)strncpy(optval.uwov_string,ttl,sizeof optval.uwov_string);
X		optval.uwov_string[sizeof optval.uwov_string - 1] = '\0';
X		return(uw_optcmd(uwin, UWOP_TITLE, UWOC_SET, &optval));
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 1162 -ne "`wc -c < 'lib/uw_gtitle.c'`"
then
	echo shar: error transmitting "'lib/uw_gtitle.c'" '(should have been 1162 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_gtype.c'" '(1182 characters)'
if test -f 'lib/uw_gtype.c'
then
	echo shar: will not over-write existing file "'lib/uw_gtype.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_gtype.c'
X/*
X *	uw library - uw_gtype, uw_stype
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include "uwlib.h"
X
Xuw_gtype(uwin, tp)
Xregister UWIN uwin;
Xregister uwtype_t *tp;
X{
X	/*
X	 * Get the type of the window "uwin".  The window type is stored
X	 * in the variable whose address is passed in "tp".
X	 */
X	if (uwin != (UWIN)0) {
X		if (tp != (uwtype_t *)0) {
X			*tp = uwin->uwi_type;
X			if (uwin->uwi_ctlfd > 0) {
X				return(0);
X			} else {
X				uwerrno = uwin->uwi_uwerr = UWE_NOCTL;
X				return(-1);
X			}
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_INVAL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
X
Xuw_stype(uwin, t)
Xregister UWIN uwin;
Xint t;
X{
X	union uwoptval optval;
X
X	/*
X	 * Set the type of window "uwin" to "t".
X	 */
X
X	if (uwin != (UWIN)0) {
X		if (t < UW_NWTYPES) {
X			uwin->uwi_type = t;
X			optval.uwov_6bit = uwin->uwi_type;
X			return(uw_optcmd(uwin, UWOP_TYPE, UWOC_SET, &optval));
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_INVAL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 1182 -ne "`wc -c < 'lib/uw_gtype.c'`"
then
	echo shar: error transmitting "'lib/uw_gtype.c'" '(should have been 1182 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_gvis.c'" '(1093 characters)'
if test -f 'lib/uw_gvis.c'
then
	echo shar: will not over-write existing file "'lib/uw_gvis.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_gvis.c'
X/*
X *	uw library - uw_gvis, uw_svis
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include "uwlib.h"
X
Xuw_gvis(uwin, vp)
Xregister UWIN uwin;
Xregister int *vp;
X{
X	/*
X	 * Get the visibility status of the window "uwin".  "vp" is a
X	 * pointer to the integer where the status is returned.
X	 */
X	if (uwin != (UWIN)0) {
X		if (vp != (int *)0) {
X			*vp = uwin->uwi_vis;
X			if (uwin->uwi_ctlfd > 0) {
X				return(0);
X			} else {
X				uwerrno = uwin->uwi_uwerr = UWE_NOCTL;
X				return(-1);
X			}
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_INVAL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
X
Xuw_svis(uwin, v)
Xregister UWIN uwin;
Xint v;
X{
X	union uwoptval optval;
X
X	/*
X	 * Make window "uwin" visible (v != 0) or invisible (v == 0).
X	 */
X	if (uwin != (UWIN)0) {
X		uwin->uwi_vis = (v != 0);
X		optval.uwov_1bit = uwin->uwi_vis;
X		return(uw_optcmd(uwin, UWOP_VIS, UWOC_SET, &optval));
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 1093 -ne "`wc -c < 'lib/uw_gvis.c'`"
then
	echo shar: error transmitting "'lib/uw_gvis.c'" '(should have been 1093 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_gwsize.c'" '(1246 characters)'
if test -f 'lib/uw_gwsize.c'
then
	echo shar: will not over-write existing file "'lib/uw_gwsize.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_gwsize.c'
X/*
X *	uw library - uw_gwsize, uw_swsize
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include "uwlib.h"
X
Xuw_gwsize(uwin, pp)
Xregister UWIN uwin;
Xregister struct uwpoint *pp;
X{
X	/*
X	 * Get the (pixel) size of window "uwin" and store it in the
X	 * point whose address is "pp".
X	 */
X	if (uwin != (UWIN)0) {
X		if (pp != (struct uwpoint *)0) {
X			*pp = uwin->uwi_wsize;
X			if (uwin->uwi_ctlfd > 0) {
X				return(0);
X			} else {
X				uwerrno = uwin->uwi_uwerr = UWE_NOCTL;
X				return(-1);
X			}
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_INVAL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
X
Xuw_swsize(uwin, pp)
Xregister UWIN uwin;
Xstruct uwpoint *pp;
X{
X	union uwoptval optval;
X
X	/*
X	 * Set the (pixel) size of window "uwin" to "pp".
X	 */
X	if (uwin != (UWIN)0) {
X		if (pp != (struct uwpoint *)0) {
X			uwin->uwi_wsize = *pp;
X			optval.uwov_point.v = pp->uwp_v;
X			optval.uwov_point.h = pp->uwp_h;
X			return(uw_optcmd(uwin, UWOP_WSIZE, UWOC_SET, &optval));
X		} else {
X			uwerrno = uwin->uwi_uwerr = UWE_INVAL;
X			return(-1);
X		}
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 1246 -ne "`wc -c < 'lib/uw_gwsize.c'`"
then
	echo shar: error transmitting "'lib/uw_gwsize.c'" '(should have been 1246 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_kill.c'" '(1341 characters)'
if test -f 'lib/uw_kill.c'
then
	echo shar: will not over-write existing file "'lib/uw_kill.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_kill.c'
X/*
X *	uw library - uw_kill
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include <sys/types.h>
X#include <netinet/in.h>
X
X#include "uwlib.h"
X
X#ifndef htons
X/* These should have been defined in <netinet/in.h>, but weren't (in 4.2BSD) */
Xextern unsigned short htons(), ntohs();
Xextern unsigned long htonl(), ntohl();
X#endif
X
Xuw_kill(uwin)
XUWIN uwin;
X{
X	register int len;
X	struct uwipc uwip;
X	extern int errno;
X
X	/*
X	 * Kill the window "uwin".  After putting out the contract,
X	 * destroy the evidence by closing all existing connections
X	 * to the window.
X	 */
X	if (uwin != (UWIN)0) {
X		if (uwin->uwi_ctlfd >= 0) {
X			len = sizeof uwip.uwip_killw +
X			    (char *)&uwip.uwip_killw - (char *)&uwip;
X			uwip.uwip_len = htons(len);
X			uwip.uwip_cmd = htons(UWC_KILLW);
X			uwip.uwip_killw.uwkw_id = htonl(uwin->uwi_id);
X			if (write(uwin->uwi_ctlfd, (char *)&uwip, len) < 0) {
X				uwin->uwi_errno = errno;
X				uwerrno = uwin->uwi_uwerr = UWE_ERRNO;
X			} else
X				uwerrno = uwin->uwi_uwerr = UWE_NONE;
X			(void)uw_detach(uwin);
X		} else
X			uwerrno = uwin->uwi_uwerr = UWE_NOCTL;
X		if (uwin->uwi_uwerr == UWE_NONE)
X			return(0);
X		else
X			return(-1);
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 1341 -ne "`wc -c < 'lib/uw_kill.c'`"
then
	echo shar: error transmitting "'lib/uw_kill.c'" '(should have been 1341 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_netadj.c'" '(4215 characters)'
if test -f 'lib/uw_netadj.c'
then
	echo shar: will not over-write existing file "'lib/uw_netadj.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_netadj.c'
X/*
X *	uw library - uw_netadj
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include <sys/types.h>
X#include <sys/socket.h>
X#include <sys/un.h>
X#include <sys/ioctl.h>
X#include <sys/wait.h>
X#include <sys/time.h>
X#include <sys/resource.h>
X#include <sys/uio.h>
X#include <sys/file.h>
X#include <netinet/in.h>
X#include <strings.h>
X#include <signal.h>
X#include "openpty.h"
X
X#include "uw_opt.h"	/* I had hoped to avoid including this */
X#include "uwlib.h"
X
Xstatic woptarg_t woa_vis[] = { WOA_UDATA(1), WOA_END };
Xstatic woptarg_t woa_type[] = { WOA_UDATA(6), WOA_END };
Xstatic woptarg_t woa_pos[] = { WOA_UDATA(12), WOA_UDATA(12), WOA_END };
Xstatic woptarg_t woa_title[] = { WOA_STRING(255), WOA_END };
Xstatic woptarg_t woa_size[] = { WOA_UDATA(12), WOA_UDATA(12), WOA_END };
Xstatic woptarg_t woa_tsize[] = { WOA_UDATA(12), WOA_UDATA(12), WOA_END };
Xstatic woptarg_t woa_fontsz[] = { WOA_UDATA(6), WOA_END };
Xstatic woptarg_t woa_clipb[] = { WOA_UDATA(1), WOA_END };
Xstatic woptarg_t woa_bell[] = { WOA_UDATA(2), WOA_END };
Xstatic woptarg_t woa_curs[] = { WOA_UDATA(1), WOA_END };
Xstatic woptarg_t woa_chgsz[] = { WOA_UDATA(1), WOA_END };
X
Xstatic woptarg_t *optargs[][WONUM_MAX+1] = {
X	/* window type 0 == adm31 */
X	{
X		0, woa_vis, woa_type, woa_pos, woa_title, woa_size, 0, 0,
X		woa_tsize, woa_fontsz, woa_clipb, woa_bell, woa_curs, woa_chgsz
X	},
X	/* window type 1 == vt52 */
X	{
X		0, woa_vis, woa_type, woa_pos, woa_title, woa_size, 0, 0,
X		woa_tsize, woa_fontsz, woa_clipb, woa_bell, woa_curs, woa_chgsz
X	},
X	/* window type 2 == ansi */
X	{
X		0, woa_vis, woa_type, woa_pos, woa_title, woa_size, 0, 0,
X		woa_tsize, woa_fontsz, woa_clipb, woa_bell, woa_curs, woa_chgsz
X	},
X	/* window type 3 = tek4010 */
X	{
X		0, woa_vis, woa_type, woa_pos, woa_title, woa_size, 0, 0,
X	},
X	/* window type 4 = file transfer */
X	{
X		0, woa_vis, woa_type, woa_pos, woa_title, woa_size, 0, 0,
X	},
X	/* window type 5 = printer */
X	{
X		0, woa_vis, woa_type, woa_pos, woa_title, woa_size, 0, 0,
X	},
X	/* window type 6 = plot */
X	{
X		0, woa_vis, woa_type, woa_pos, woa_title, woa_size, 0, 0,
X	},
X};
X
X#ifdef htons
Xuw_hton(wtype, optnum, data)
Xuwtype_t wtype;
Xuwopt_t optnum;
Xchar *data;
X{
X}
X
Xuw_ntoh(wtype, optnum, data)
Xuwtype_t wtype;
Xuwopt_t optnum;
Xchar *data;
X{
X}
X
X#else
X/* These should have been defined in <netinet/in.h> but weren't (in 4.2BSD) */
Xextern unsigned short htons(), ntohs();
Xextern unsigned long htonl(), ntohl();
X
Xuw_hton(wtype, optnum, data)
Xuwtype_t wtype;
Xuwopt_t optnum;
Xchar *data;
X{
X	static struct netadj na = {
X		(short (*)())htons, (long (*)())htonl, htons, htonl
X	};
X	if (data != (char *)0 && wtype < sizeof optargs / sizeof optargs[0] &&
X	    optnum <= WONUM_MAX && optargs[wtype][optnum] != (woptarg_t *)0) {
X		netadj(optargs[wtype][optnum], data, &na);
X	}
X}
X
Xuw_ntoh(wtype, optnum, data)
Xuwtype_t wtype;
Xuwopt_t optnum;
Xchar *data;
X{
X	static struct netadj na = {
X		(short (*)())ntohs, (long (*)())ntohl, ntohs, ntohl
X	};
X	if (data != (char *)0 && wtype < sizeof optargs / sizeof optargs[0] &&
X	    optnum <= WONUM_MAX && optargs[wtype][optnum] != (woptarg_t *)0) {
X		netadj(optargs[wtype][optnum], data, &na);
X	}
X}
X
Xstatic
Xnetadj(woa, data, na)
Xregister woptarg_t *woa;
Xchar *data;
Xregister struct netadj *na;
X{
X	register char *cp;
X	register int cnt;
X	union {
X		struct {
X			char	c1;
X			short	s;
X		}	cs;
X		struct {
X			char	c2;
X			long	l;
X		}	cl;
X	} u;
X
X	/*
X	 * Convert an option between host byte order and network byte order.
X	 */
X	if (data && na) {
X		for (cp=data; *woa != WOA_END; woa++) {
X			cnt = *woa & ~WOA_CMDMASK;
X			switch (*woa & WOA_CMDMASK) {
X			case WOA_CHARS(0):
X			case WOA_STRING(0):
X				cp += cnt;
X				break;
X			case WOA_UDATA(0):
X				if (cnt <= NBBY) {
X					cp++;
X				} else if (cnt <= sizeof(short)*NBBY) {
X					while ((int)cp & ((char *)&u.cs.s-&u.cs.c1-1))
X						cp++;
X					*(u_short *)cp =
X					    (*na->na_ushort)(*(u_short *)cp);
X					cp += sizeof(short);
X				} else {
X					while ((int)cp & ((char *)&u.cl.l-&u.cl.c2-1))
X						cp++;
X					*(u_short *)cp =
X					    (*na->na_ushort)(*(u_short *)cp);
X					cp += sizeof(long);
X				}
X			}
X		}
X	}
X}
X#endif
SHAR_EOF
if test 4215 -ne "`wc -c < 'lib/uw_netadj.c'`"
then
	echo shar: error transmitting "'lib/uw_netadj.c'" '(should have been 4215 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_new.c'" '(5791 characters)'
if test -f 'lib/uw_new.c'
then
	echo shar: will not over-write existing file "'lib/uw_new.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_new.c'
X/*
X *	uw library - uw_new
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include <sys/types.h>
X#include <sys/socket.h>
X#include <netinet/in.h>
X#include <sys/uio.h>
X#include <strings.h>
X#include <signal.h>
X#include <netdb.h>
X#include <ctype.h>
X#include "openpty.h"
X
X#include "uwlib.h"
X
Xextern char *malloc();
Xextern char *getenv();
X
X#ifndef htons
X/* These should have been defined in <netinet/in.h>, but weren't (in 4.2BSD) */
Xextern unsigned short htons(), ntohs();
Xextern unsigned long htonl(), ntohl();
X#endif
X
XUWIN
Xuw_new(uwtype, sin)
Xuwtype_t uwtype;
Xstruct sockaddr_in *sin;
X{
X	register UWIN uwin;
X	register char *cp, c;
X	register int len;
X	register int ctlfd;
X	int rdsz;
X	auto int namelen;
X	auto struct sockaddr_in sa, datasin, ctlsin;
X	auto struct uwipc uwip;
X	extern int errno;
X
X	/*
X	 * If our caller didn't supply an address for us to contact,
X	 * look in the environment to find it.
X	 */
X	if (sin == (struct sockaddr_in *)0) {
X		if ((cp = getenv(INET_ENV)) == (char *)0) {
X			uwerrno = UWE_NXSERV;
X			return((UWIN)0);
X		}
X		sin = &sa;
X		sa.sin_family = AF_INET;
X		sa.sin_addr.s_addr = 0;
X		sa.sin_port = 0;
X		bzero(sa.sin_zero, sizeof sa.sin_zero);
X		for ( ; isxdigit(c = *cp); cp++) {
X			/* Pyramid compiler blows this, must use left shift */
X			/* sa.sin_addr.s_addr *= 16; */
X			sa.sin_addr.s_addr <<= 4;
X			if (isdigit(c))
X				sa.sin_addr.s_addr += c-'0';
X			else if (islower(c))
X				sa.sin_addr.s_addr += c-'a' + 10;
X			else
X				sa.sin_addr.s_addr += c-'A' + 10;
X		}
X		if (c == '.') {
X			for (cp++; isdigit(c = *cp); cp++)
X				sa.sin_port = sa.sin_port*10 + c-'0';
X		}
X		if (sa.sin_addr.s_addr == 0 || sa.sin_port == 0 ||
X		    c != '\0') {
X			/* bad address */
X			uwerrno = UWE_INVAL;
X			return((UWIN)0);
X		}
X		sa.sin_addr.s_addr = htonl(sa.sin_addr.s_addr);
X		sa.sin_port = htons(sa.sin_port);
X	}
X
X	/*
X	 * Allocate space for a new window structure.
X	 */
X	if ((uwin = (UWIN)malloc(sizeof(*uwin))) == (UWIN)0) {
X		uwerrno = UWE_NOMEM;
X		return((UWIN)0);
X	}
X	uwin->uwi_type = uwtype;
X	for (len=0; len < UW_NUMOPTS; len++) /* "len" is a convenient "int" */
X		uwin->uwi_options[len].uwi_optfn = (uwfnptr_t)0;
X	
X	/*
X	 * Create sockets for the data and control file descriptors.
X	 */
X	if ((uwin->uwi_datafd = socket(AF_INET, SOCK_STREAM, 0)) < 0 ||
X	    (uwin->uwi_ctlfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
X		if (uwin->uwi_datafd >= 0)
X			(void)close(uwin->uwi_datafd);
X		return((UWIN)0);
X	}
X
X	/*
X	 * Bind these sockets to a local address.  We figure out the
X	 * local machine's host number and use it if possible; otherwise,
X	 * we fall back to 127.0.0.1 (loopback device).  After binding,
X	 * we determine the port number for the control socket, since we
X	 * must send that to the server.  Connect to the server.
X	 */
X	datasin.sin_family = AF_INET;
X	datasin.sin_port = 0;
X	bzero(datasin.sin_zero, sizeof datasin.sin_zero);
X	getmyaddr(&datasin.sin_addr);
X	ctlsin.sin_family = AF_INET;
X	ctlsin.sin_port = 0;
X	bzero(ctlsin.sin_zero, sizeof ctlsin.sin_zero);
X	getmyaddr(&ctlsin.sin_addr);
X	if (bind(uwin->uwi_datafd, (struct sockaddr *)&datasin, sizeof datasin) < 0 ||
X	    bind(uwin->uwi_ctlfd, (struct sockaddr *)&ctlsin, sizeof ctlsin) < 0 ||
X	    listen(uwin->uwi_ctlfd, 1) < 0) {
X		uwerrno = UWE_ERRNO;
X		goto error;
X	}
X	namelen = sizeof ctlsin;
X	(void)getsockname(uwin->uwi_ctlfd, (char *)&ctlsin, &namelen);
X
X	if (connect(uwin->uwi_datafd, sin, sizeof(struct sockaddr_in)) < 0) {
X		uwerrno = UWE_ERRNO;
X		goto error;
X	}
X
X	/*
X	 * Now we have enough information to build the new-window command
X	 * and send it to the server.  The initial command is sent to the
X	 * data port.  Next, we wait for a connection from the server to
X	 * our data socket.  Finally, we expect the server to send us a
X	 * new window status message on the data fd.
X	 */
X	len = sizeof uwip.uwip_neww + (char *)&uwip.uwip_neww - (char *)&uwip;
X	uwip.uwip_len = htons(len);
X	uwip.uwip_cmd = htons(UWC_NEWW);
X	uwip.uwip_neww.uwnw_id = 0;	/* let server choose this */
X	uwip.uwip_neww.uwnw_type = htons(uwtype);
X	uwip.uwip_neww.uwnw_ctlport = ctlsin.sin_port;/* byte order correct */
X	if (write(uwin->uwi_datafd, (char *)&uwip, len) < 0) {
X		uwerrno = UWE_ERRNO;
X		goto error;
X	}
X	
X	namelen = sizeof ctlsin;
X	if ((ctlfd = accept(uwin->uwi_ctlfd, (struct sockaddr_in *)&ctlsin, &namelen)) < 0) {
X		uwerrno = UWE_ERRNO;
X		goto error;
X	}
X	(void)close(uwin->uwi_ctlfd);
X	uwin->uwi_ctlfd = ctlfd;
X	uw_optinit(ctlfd, uwin);
X
X	cp = (char *)&uwip.uwip_len;
X	rdsz = sizeof uwip.uwip_len;
X	while (rdsz > 0 && (len=read(uwin->uwi_datafd, cp, rdsz)) > 0) {
X		cp += len;
X		rdsz -= len;
X	}
X	if (len > 0) {
X		rdsz = htons(uwip.uwip_len) - sizeof uwip.uwip_len;
X		while (rdsz > 0 && (len=read(uwin->uwi_datafd, cp, rdsz)) > 0) {
X			cp += len;
X			rdsz -= len;
X		}
X	}
X	if (len <= 0) {
X		uwerrno = UWE_ERRNO;
X		goto error;
X	}
X	uwerrno = uwin->uwi_uwerr = ntohs(uwip.uwip_status.uwst_err);
X	errno = uwin->uwi_errno = ntohs(uwip.uwip_status.uwst_errno);
X	if (uwin->uwi_uwerr != UWE_NONE)
X		goto error;
X	uwin->uwi_id = ntohl(uwip.uwip_status.uwst_id);
X	return(uwin);
X
Xerror:
X	(void)close(uwin->uwi_datafd);
X	(void)close(uwin->uwi_ctlfd);
X	free((char *)uwin);
X	return((UWIN)0);
X}
X
Xstatic
Xgetmyaddr(addr)
Xstruct in_addr *addr;
X{
X	register struct hostent *h;
X	char hostname[32];
X	static int once = 1;
X	static struct in_addr myaddr;
X
X	if (once) {
X		if (gethostname(hostname, sizeof hostname) < 0) {
X			(void)strncpy(hostname, "localhost", sizeof hostname-1);
X			hostname[sizeof hostname-1] = '\0';
X		}
X		if ((h = gethostbyname(hostname)) != (struct hostent *)0)
X			myaddr = *(struct in_addr *)h->h_addr;
X		else
X			myaddr.s_addr = htonl(0x7f000001L);
X		once = 0;
X	}
X	*addr = myaddr;
X}
SHAR_EOF
if test 5791 -ne "`wc -c < 'lib/uw_new.c'`"
then
	echo shar: error transmitting "'lib/uw_new.c'" '(should have been 5791 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'lib/uw_optcmd.c'" '(1899 characters)'
if test -f 'lib/uw_optcmd.c'
then
	echo shar: will not over-write existing file "'lib/uw_optcmd.c'"
else
sed 's/^X//' << \SHAR_EOF > 'lib/uw_optcmd.c'
X/*
X *	uw library - uw_optcmd
X *
X * Copyright 1986 by John D. Bruner.  All rights reserved.  Permission to
X * copy this program is given provided that the copy is not sold and that
X * this copyright notice is included.
X */
X#include <sys/types.h>
X#include <netinet/in.h>
X
X#include "uwlib.h"
X
X#ifndef htons
X/* These should have been defined in <netinet/in.h>, but weren't (in 4.2BSD) */
Xextern unsigned short htons(), ntohs();
Xextern unsigned long htonl(), ntohl();
X#endif
X
Xuw_optcmd(uwin, optnum, optcmd, optval)
XUWIN uwin;
Xuwopt_t optnum;
Xuwoptcmd_t optcmd;
Xunion uwoptval *optval;
X{
X	register int len;
X	struct uwipc uwip;
X	extern int errno;
X
X	/*
X	 * Send an option command string to the server (and eventually
X	 * to the Macintosh).
X	 */
X	if (uwin != (UWIN)0) {
X		if (uwin->uwi_ctlfd >= 0) {
X			if (optnum < UW_NUMOPTS) {
X				len = sizeof uwip;
X				uwip.uwip_len = htons(len);
X				uwip.uwip_cmd = htons(UWC_OPTION);
X				uwip.uwip_option.uwop_id = htonl(uwin->uwi_id);
X				uwip.uwip_option.uwop_opt = htons(optnum);
X				uwip.uwip_option.uwop_cmd = htons(optcmd);
X				switch (optcmd) {
X				case UWOC_SET:
X					if (optval == (union uwoptval *)0) {
X						uwin->uwi_uwerr = UWE_INVAL;
X						break;
X					} 
X					uwip.uwip_option.uwop_val = *optval;
X					uw_hton(uwin->uwi_type, optnum,
X					    (char *)&uwip.uwip_option.uwop_val);
X					/* no break */
X				case UWOC_ASK:
X				case UWOC_DO:
X				case UWOC_DONT:
X				case UWOC_WILL:
X				case UWOC_WONT:
X					if (write(uwin->uwi_ctlfd, (char *)&uwip,
X					    len) < 0) {
X						uwin->uwi_uwerr = UWE_ERRNO;
X						uwin->uwi_errno = errno;
X					} else
X						uwin->uwi_uwerr = UWE_NONE;
X					break;
X				default:
X					uwin->uwi_uwerr = UWE_INVAL;
X					break;
X				}
X			} else
X				uwin->uwi_uwerr = UWE_INVAL;
X		}
X		uwerrno = uwin->uwi_uwerr;
X		if (uwin->uwi_uwerr == UWE_NONE)
X			return(0);
X		else
X			return(-1);
X	} else {
X		uwerrno = UWE_INVAL;
X		return(-1);
X	}
X}
SHAR_EOF
if test 1899 -ne "`wc -c < 'lib/uw_optcmd.c'`"
then
	echo shar: error transmitting "'lib/uw_optcmd.c'" '(should have been 1899 characters)'
fi
fi # end of overwriting check
#	End of shell archive
exit 0
--- end of part 4 ---