889 lines
17 KiB
C
889 lines
17 KiB
C
/*
|
|
* Copyright (c) 1983, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)cmds.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
|
|
#include "tip.h"
|
|
#include "pathnames.h"
|
|
|
|
/*
|
|
* tip
|
|
*
|
|
* miscellaneous commands
|
|
*/
|
|
|
|
int quant[] = { 60, 60, 24 };
|
|
|
|
char null = '\0';
|
|
char *sep[] = { "second", "minute", "hour" };
|
|
static char *argv[10]; /* argument vector for take and put */
|
|
|
|
void timeout(); /* timeout function called on alarm */
|
|
void stopsnd(); /* SIGINT handler during file transfers */
|
|
void intcopy(); /* interrupt routine for file transfers */
|
|
|
|
/*
|
|
* FTP - remote ==> local
|
|
* get a file from the remote host
|
|
*/
|
|
getfl(c)
|
|
char c;
|
|
{
|
|
char buf[256], *cp, *expand();
|
|
|
|
putchar(c);
|
|
/*
|
|
* get the UNIX receiving file's name
|
|
*/
|
|
if (prompt("Local file name? ", copyname))
|
|
return;
|
|
cp = expand(copyname);
|
|
if ((sfd = creat(cp, 0666)) < 0) {
|
|
printf("\r\n%s: cannot creat\r\n", copyname);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* collect parameters
|
|
*/
|
|
if (prompt("List command for remote system? ", buf)) {
|
|
unlink(copyname);
|
|
return;
|
|
}
|
|
transfer(buf, sfd, value(EOFREAD));
|
|
}
|
|
|
|
/*
|
|
* Cu-like take command
|
|
*/
|
|
cu_take(cc)
|
|
char cc;
|
|
{
|
|
int fd, argc;
|
|
char line[BUFSIZ], *expand(), *cp;
|
|
|
|
if (prompt("[take] ", copyname))
|
|
return;
|
|
if ((argc = args(copyname, argv)) < 1 || argc > 2) {
|
|
printf("usage: <take> from [to]\r\n");
|
|
return;
|
|
}
|
|
if (argc == 1)
|
|
argv[1] = argv[0];
|
|
cp = expand(argv[1]);
|
|
if ((fd = creat(cp, 0666)) < 0) {
|
|
printf("\r\n%s: cannot create\r\n", argv[1]);
|
|
return;
|
|
}
|
|
sprintf(line, "cat %s;echo \01", argv[0]);
|
|
transfer(line, fd, "\01");
|
|
}
|
|
|
|
static jmp_buf intbuf;
|
|
/*
|
|
* Bulk transfer routine --
|
|
* used by getfl(), cu_take(), and pipefile()
|
|
*/
|
|
transfer(buf, fd, eofchars)
|
|
char *buf, *eofchars;
|
|
{
|
|
register int ct;
|
|
char c, buffer[BUFSIZ];
|
|
register char *p = buffer;
|
|
register int cnt, eof;
|
|
time_t start;
|
|
sig_t f;
|
|
char r;
|
|
|
|
pwrite(FD, buf, size(buf));
|
|
quit = 0;
|
|
kill(pid, SIGIOT);
|
|
read(repdes[0], (char *)&ccc, 1); /* Wait until read process stops */
|
|
|
|
/*
|
|
* finish command
|
|
*/
|
|
r = '\r';
|
|
pwrite(FD, &r, 1);
|
|
do
|
|
read(FD, &c, 1);
|
|
while ((c&0177) != '\n');
|
|
ioctl(0, TIOCSETC, &defchars);
|
|
|
|
(void) setjmp(intbuf);
|
|
f = signal(SIGINT, intcopy);
|
|
start = time(0);
|
|
for (ct = 0; !quit;) {
|
|
eof = read(FD, &c, 1) <= 0;
|
|
c &= 0177;
|
|
if (quit)
|
|
continue;
|
|
if (eof || any(c, eofchars))
|
|
break;
|
|
if (c == 0)
|
|
continue; /* ignore nulls */
|
|
if (c == '\r')
|
|
continue;
|
|
*p++ = c;
|
|
|
|
if (c == '\n' && boolean(value(VERBOSE)))
|
|
printf("\r%d", ++ct);
|
|
if ((cnt = (p-buffer)) == number(value(FRAMESIZE))) {
|
|
if (write(fd, buffer, cnt) != cnt) {
|
|
printf("\r\nwrite error\r\n");
|
|
quit = 1;
|
|
}
|
|
p = buffer;
|
|
}
|
|
}
|
|
if (cnt = (p-buffer))
|
|
if (write(fd, buffer, cnt) != cnt)
|
|
printf("\r\nwrite error\r\n");
|
|
|
|
if (boolean(value(VERBOSE)))
|
|
prtime(" lines transferred in ", time(0)-start);
|
|
ioctl(0, TIOCSETC, &tchars);
|
|
write(fildes[1], (char *)&ccc, 1);
|
|
signal(SIGINT, f);
|
|
close(fd);
|
|
}
|
|
|
|
/*
|
|
* FTP - remote ==> local process
|
|
* send remote input to local process via pipe
|
|
*/
|
|
pipefile()
|
|
{
|
|
int cpid, pdes[2];
|
|
char buf[256];
|
|
int status, p;
|
|
extern int errno;
|
|
|
|
if (prompt("Local command? ", buf))
|
|
return;
|
|
|
|
if (pipe(pdes)) {
|
|
printf("can't establish pipe\r\n");
|
|
return;
|
|
}
|
|
|
|
if ((cpid = fork()) < 0) {
|
|
printf("can't fork!\r\n");
|
|
return;
|
|
} else if (cpid) {
|
|
if (prompt("List command for remote system? ", buf)) {
|
|
close(pdes[0]), close(pdes[1]);
|
|
kill (cpid, SIGKILL);
|
|
} else {
|
|
close(pdes[0]);
|
|
signal(SIGPIPE, intcopy);
|
|
transfer(buf, pdes[1], value(EOFREAD));
|
|
signal(SIGPIPE, SIG_DFL);
|
|
while ((p = wait(&status)) > 0 && p != cpid)
|
|
;
|
|
}
|
|
} else {
|
|
register int f;
|
|
|
|
dup2(pdes[0], 0);
|
|
close(pdes[0]);
|
|
for (f = 3; f < 20; f++)
|
|
close(f);
|
|
execute(buf);
|
|
printf("can't execl!\r\n");
|
|
exit(0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Interrupt service routine for FTP
|
|
*/
|
|
void
|
|
stopsnd()
|
|
{
|
|
|
|
stop = 1;
|
|
signal(SIGINT, SIG_IGN);
|
|
}
|
|
|
|
/*
|
|
* FTP - local ==> remote
|
|
* send local file to remote host
|
|
* terminate transmission with pseudo EOF sequence
|
|
*/
|
|
sendfile(cc)
|
|
char cc;
|
|
{
|
|
FILE *fd;
|
|
char *fnamex;
|
|
char *expand();
|
|
|
|
putchar(cc);
|
|
/*
|
|
* get file name
|
|
*/
|
|
if (prompt("Local file name? ", fname))
|
|
return;
|
|
|
|
/*
|
|
* look up file
|
|
*/
|
|
fnamex = expand(fname);
|
|
if ((fd = fopen(fnamex, "r")) == NULL) {
|
|
printf("%s: cannot open\r\n", fname);
|
|
return;
|
|
}
|
|
transmit(fd, value(EOFWRITE), NULL);
|
|
if (!boolean(value(ECHOCHECK))) {
|
|
struct sgttyb buf;
|
|
|
|
ioctl(FD, TIOCGETP, &buf); /* this does a */
|
|
ioctl(FD, TIOCSETP, &buf); /* wflushtty */
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Bulk transfer routine to remote host --
|
|
* used by sendfile() and cu_put()
|
|
*/
|
|
transmit(fd, eofchars, command)
|
|
FILE *fd;
|
|
char *eofchars, *command;
|
|
{
|
|
char *pc, lastc;
|
|
int c, ccount, lcount;
|
|
time_t start_t, stop_t;
|
|
sig_t f;
|
|
|
|
kill(pid, SIGIOT); /* put TIPOUT into a wait state */
|
|
stop = 0;
|
|
f = signal(SIGINT, stopsnd);
|
|
ioctl(0, TIOCSETC, &defchars);
|
|
read(repdes[0], (char *)&ccc, 1);
|
|
if (command != NULL) {
|
|
for (pc = command; *pc; pc++)
|
|
send(*pc);
|
|
if (boolean(value(ECHOCHECK)))
|
|
read(FD, (char *)&c, 1); /* trailing \n */
|
|
else {
|
|
struct sgttyb buf;
|
|
|
|
ioctl(FD, TIOCGETP, &buf); /* this does a */
|
|
ioctl(FD, TIOCSETP, &buf); /* wflushtty */
|
|
sleep(5); /* wait for remote stty to take effect */
|
|
}
|
|
}
|
|
lcount = 0;
|
|
lastc = '\0';
|
|
start_t = time(0);
|
|
while (1) {
|
|
ccount = 0;
|
|
do {
|
|
c = getc(fd);
|
|
if (stop)
|
|
goto out;
|
|
if (c == EOF)
|
|
goto out;
|
|
if (c == 0177 && !boolean(value(RAWFTP)))
|
|
continue;
|
|
lastc = c;
|
|
if (c < 040) {
|
|
if (c == '\n') {
|
|
if (!boolean(value(RAWFTP)))
|
|
c = '\r';
|
|
}
|
|
else if (c == '\t') {
|
|
if (!boolean(value(RAWFTP))) {
|
|
if (boolean(value(TABEXPAND))) {
|
|
send(' ');
|
|
while ((++ccount % 8) != 0)
|
|
send(' ');
|
|
continue;
|
|
}
|
|
}
|
|
} else
|
|
if (!boolean(value(RAWFTP)))
|
|
continue;
|
|
}
|
|
send(c);
|
|
} while (c != '\r' && !boolean(value(RAWFTP)));
|
|
if (boolean(value(VERBOSE)))
|
|
printf("\r%d", ++lcount);
|
|
if (boolean(value(ECHOCHECK))) {
|
|
timedout = 0;
|
|
alarm((int)value(ETIMEOUT));
|
|
do { /* wait for prompt */
|
|
read(FD, (char *)&c, 1);
|
|
if (timedout || stop) {
|
|
if (timedout)
|
|
printf("\r\ntimed out at eol\r\n");
|
|
alarm(0);
|
|
goto out;
|
|
}
|
|
} while ((c&0177) != character(value(PROMPT)));
|
|
alarm(0);
|
|
}
|
|
}
|
|
out:
|
|
if (lastc != '\n' && !boolean(value(RAWFTP)))
|
|
send('\r');
|
|
for (pc = eofchars; *pc; pc++)
|
|
send(*pc);
|
|
stop_t = time(0);
|
|
fclose(fd);
|
|
signal(SIGINT, f);
|
|
if (boolean(value(VERBOSE)))
|
|
if (boolean(value(RAWFTP)))
|
|
prtime(" chars transferred in ", stop_t-start_t);
|
|
else
|
|
prtime(" lines transferred in ", stop_t-start_t);
|
|
write(fildes[1], (char *)&ccc, 1);
|
|
ioctl(0, TIOCSETC, &tchars);
|
|
}
|
|
|
|
/*
|
|
* Cu-like put command
|
|
*/
|
|
cu_put(cc)
|
|
char cc;
|
|
{
|
|
FILE *fd;
|
|
char line[BUFSIZ];
|
|
int argc;
|
|
char *expand();
|
|
char *copynamex;
|
|
|
|
if (prompt("[put] ", copyname))
|
|
return;
|
|
if ((argc = args(copyname, argv)) < 1 || argc > 2) {
|
|
printf("usage: <put> from [to]\r\n");
|
|
return;
|
|
}
|
|
if (argc == 1)
|
|
argv[1] = argv[0];
|
|
copynamex = expand(argv[0]);
|
|
if ((fd = fopen(copynamex, "r")) == NULL) {
|
|
printf("%s: cannot open\r\n", copynamex);
|
|
return;
|
|
}
|
|
if (boolean(value(ECHOCHECK)))
|
|
sprintf(line, "cat>%s\r", argv[1]);
|
|
else
|
|
sprintf(line, "stty -echo;cat>%s;stty echo\r", argv[1]);
|
|
transmit(fd, "\04", line);
|
|
}
|
|
|
|
/*
|
|
* FTP - send single character
|
|
* wait for echo & handle timeout
|
|
*/
|
|
send(c)
|
|
char c;
|
|
{
|
|
char cc;
|
|
int retry = 0;
|
|
|
|
cc = c;
|
|
pwrite(FD, &cc, 1);
|
|
#ifdef notdef
|
|
if (number(value(CDELAY)) > 0 && c != '\r')
|
|
nap(number(value(CDELAY)));
|
|
#endif
|
|
if (!boolean(value(ECHOCHECK))) {
|
|
#ifdef notdef
|
|
if (number(value(LDELAY)) > 0 && c == '\r')
|
|
nap(number(value(LDELAY)));
|
|
#endif
|
|
return;
|
|
}
|
|
tryagain:
|
|
timedout = 0;
|
|
alarm((int)value(ETIMEOUT));
|
|
read(FD, &cc, 1);
|
|
alarm(0);
|
|
if (timedout) {
|
|
printf("\r\ntimeout error (%s)\r\n", ctrl(c));
|
|
if (retry++ > 3)
|
|
return;
|
|
pwrite(FD, &null, 1); /* poke it */
|
|
goto tryagain;
|
|
}
|
|
}
|
|
|
|
void
|
|
timeout()
|
|
{
|
|
signal(SIGALRM, timeout);
|
|
timedout = 1;
|
|
}
|
|
|
|
/*
|
|
* Stolen from consh() -- puts a remote file on the output of a local command.
|
|
* Identical to consh() except for where stdout goes.
|
|
*/
|
|
pipeout(c)
|
|
{
|
|
char buf[256];
|
|
int cpid, status, p;
|
|
time_t start;
|
|
|
|
putchar(c);
|
|
if (prompt("Local command? ", buf))
|
|
return;
|
|
kill(pid, SIGIOT); /* put TIPOUT into a wait state */
|
|
signal(SIGINT, SIG_IGN);
|
|
signal(SIGQUIT, SIG_IGN);
|
|
ioctl(0, TIOCSETC, &defchars);
|
|
read(repdes[0], (char *)&ccc, 1);
|
|
/*
|
|
* Set up file descriptors in the child and
|
|
* let it go...
|
|
*/
|
|
if ((cpid = fork()) < 0)
|
|
printf("can't fork!\r\n");
|
|
else if (cpid) {
|
|
start = time(0);
|
|
while ((p = wait(&status)) > 0 && p != cpid)
|
|
;
|
|
} else {
|
|
register int i;
|
|
|
|
dup2(FD, 1);
|
|
for (i = 3; i < 20; i++)
|
|
close(i);
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
execute(buf);
|
|
printf("can't find `%s'\r\n", buf);
|
|
exit(0);
|
|
}
|
|
if (boolean(value(VERBOSE)))
|
|
prtime("away for ", time(0)-start);
|
|
write(fildes[1], (char *)&ccc, 1);
|
|
ioctl(0, TIOCSETC, &tchars);
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
}
|
|
|
|
#ifdef CONNECT
|
|
/*
|
|
* Fork a program with:
|
|
* 0 <-> remote tty in
|
|
* 1 <-> remote tty out
|
|
* 2 <-> local tty out
|
|
*/
|
|
consh(c)
|
|
{
|
|
char buf[256];
|
|
int cpid, status, p;
|
|
time_t start;
|
|
|
|
putchar(c);
|
|
if (prompt("Local command? ", buf))
|
|
return;
|
|
kill(pid, SIGIOT); /* put TIPOUT into a wait state */
|
|
signal(SIGINT, SIG_IGN);
|
|
signal(SIGQUIT, SIG_IGN);
|
|
ioctl(0, TIOCSETC, &defchars);
|
|
read(repdes[0], (char *)&ccc, 1);
|
|
/*
|
|
* Set up file descriptors in the child and
|
|
* let it go...
|
|
*/
|
|
if ((cpid = fork()) < 0)
|
|
printf("can't fork!\r\n");
|
|
else if (cpid) {
|
|
start = time(0);
|
|
while ((p = wait(&status)) > 0 && p != cpid)
|
|
;
|
|
} else {
|
|
register int i;
|
|
|
|
dup2(FD, 0);
|
|
dup2(3, 1);
|
|
for (i = 3; i < 20; i++)
|
|
close(i);
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
execute(buf);
|
|
printf("can't find `%s'\r\n", buf);
|
|
exit(0);
|
|
}
|
|
if (boolean(value(VERBOSE)))
|
|
prtime("away for ", time(0)-start);
|
|
write(fildes[1], (char *)&ccc, 1);
|
|
ioctl(0, TIOCSETC, &tchars);
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Escape to local shell
|
|
*/
|
|
shell()
|
|
{
|
|
int shpid, status;
|
|
extern char **environ;
|
|
char *cp;
|
|
|
|
printf("[sh]\r\n");
|
|
signal(SIGINT, SIG_IGN);
|
|
signal(SIGQUIT, SIG_IGN);
|
|
unraw();
|
|
if (shpid = fork()) {
|
|
while (shpid != wait(&status));
|
|
raw();
|
|
printf("\r\n!\r\n");
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
return;
|
|
} else {
|
|
signal(SIGQUIT, SIG_DFL);
|
|
signal(SIGINT, SIG_DFL);
|
|
if ((cp = rindex(value(SHELL), '/')) == NULL)
|
|
cp = value(SHELL);
|
|
else
|
|
cp++;
|
|
shell_uid();
|
|
execl(value(SHELL), cp, 0);
|
|
printf("\r\ncan't execl!\r\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* TIPIN portion of scripting
|
|
* initiate the conversation with TIPOUT
|
|
*/
|
|
setscript()
|
|
{
|
|
char c;
|
|
/*
|
|
* enable TIPOUT side for dialogue
|
|
*/
|
|
kill(pid, SIGEMT);
|
|
if (boolean(value(SCRIPT)))
|
|
write(fildes[1], value(RECORD), size(value(RECORD)));
|
|
write(fildes[1], "\n", 1);
|
|
/*
|
|
* wait for TIPOUT to finish
|
|
*/
|
|
read(repdes[0], &c, 1);
|
|
if (c == 'n')
|
|
printf("can't create %s\r\n", value(RECORD));
|
|
}
|
|
|
|
/*
|
|
* Change current working directory of
|
|
* local portion of tip
|
|
*/
|
|
chdirectory()
|
|
{
|
|
char dirname[80];
|
|
register char *cp = dirname;
|
|
|
|
if (prompt("[cd] ", dirname)) {
|
|
if (stoprompt)
|
|
return;
|
|
cp = value(HOME);
|
|
}
|
|
if (chdir(cp) < 0)
|
|
printf("%s: bad directory\r\n", cp);
|
|
printf("!\r\n");
|
|
}
|
|
|
|
tipabort(msg)
|
|
char *msg;
|
|
{
|
|
|
|
kill(pid, SIGTERM);
|
|
disconnect(msg);
|
|
if (msg != NOSTR)
|
|
printf("\r\n%s", msg);
|
|
printf("\r\n[EOT]\r\n");
|
|
daemon_uid();
|
|
(void)uu_unlock(uucplock);
|
|
unraw();
|
|
exit(0);
|
|
}
|
|
|
|
finish()
|
|
{
|
|
char *dismsg;
|
|
|
|
if ((dismsg = value(DISCONNECT)) != NOSTR) {
|
|
write(FD, dismsg, strlen(dismsg));
|
|
sleep(5);
|
|
}
|
|
tipabort(NOSTR);
|
|
}
|
|
|
|
void
|
|
intcopy()
|
|
{
|
|
raw();
|
|
quit = 1;
|
|
longjmp(intbuf, 1);
|
|
}
|
|
|
|
execute(s)
|
|
char *s;
|
|
{
|
|
register char *cp;
|
|
|
|
if ((cp = rindex(value(SHELL), '/')) == NULL)
|
|
cp = value(SHELL);
|
|
else
|
|
cp++;
|
|
shell_uid();
|
|
execl(value(SHELL), cp, "-c", s, 0);
|
|
}
|
|
|
|
args(buf, a)
|
|
char *buf, *a[];
|
|
{
|
|
register char *p = buf, *start;
|
|
register char **parg = a;
|
|
register int n = 0;
|
|
|
|
do {
|
|
while (*p && (*p == ' ' || *p == '\t'))
|
|
p++;
|
|
start = p;
|
|
if (*p)
|
|
*parg = p;
|
|
while (*p && (*p != ' ' && *p != '\t'))
|
|
p++;
|
|
if (p != start)
|
|
parg++, n++;
|
|
if (*p)
|
|
*p++ = '\0';
|
|
} while (*p);
|
|
|
|
return(n);
|
|
}
|
|
|
|
prtime(s, a)
|
|
char *s;
|
|
time_t a;
|
|
{
|
|
register i;
|
|
int nums[3];
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
nums[i] = (int)(a % quant[i]);
|
|
a /= quant[i];
|
|
}
|
|
printf("%s", s);
|
|
while (--i >= 0)
|
|
if (nums[i] || i == 0 && nums[1] == 0 && nums[2] == 0)
|
|
printf("%d %s%c ", nums[i], sep[i],
|
|
nums[i] == 1 ? '\0' : 's');
|
|
printf("\r\n!\r\n");
|
|
}
|
|
|
|
variable()
|
|
{
|
|
char buf[256];
|
|
|
|
if (prompt("[set] ", buf))
|
|
return;
|
|
vlex(buf);
|
|
if (vtable[BEAUTIFY].v_access&CHANGED) {
|
|
vtable[BEAUTIFY].v_access &= ~CHANGED;
|
|
kill(pid, SIGSYS);
|
|
}
|
|
if (vtable[SCRIPT].v_access&CHANGED) {
|
|
vtable[SCRIPT].v_access &= ~CHANGED;
|
|
setscript();
|
|
/*
|
|
* So that "set record=blah script" doesn't
|
|
* cause two transactions to occur.
|
|
*/
|
|
if (vtable[RECORD].v_access&CHANGED)
|
|
vtable[RECORD].v_access &= ~CHANGED;
|
|
}
|
|
if (vtable[RECORD].v_access&CHANGED) {
|
|
vtable[RECORD].v_access &= ~CHANGED;
|
|
if (boolean(value(SCRIPT)))
|
|
setscript();
|
|
}
|
|
if (vtable[TAND].v_access&CHANGED) {
|
|
vtable[TAND].v_access &= ~CHANGED;
|
|
if (boolean(value(TAND)))
|
|
tandem("on");
|
|
else
|
|
tandem("off");
|
|
}
|
|
if (vtable[LECHO].v_access&CHANGED) {
|
|
vtable[LECHO].v_access &= ~CHANGED;
|
|
HD = boolean(value(LECHO));
|
|
}
|
|
if (vtable[PARITY].v_access&CHANGED) {
|
|
vtable[PARITY].v_access &= ~CHANGED;
|
|
setparity();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Turn tandem mode on or off for remote tty.
|
|
*/
|
|
tandem(option)
|
|
char *option;
|
|
{
|
|
struct sgttyb rmtty;
|
|
|
|
ioctl(FD, TIOCGETP, &rmtty);
|
|
if (strcmp(option,"on") == 0) {
|
|
rmtty.sg_flags |= TANDEM;
|
|
arg.sg_flags |= TANDEM;
|
|
} else {
|
|
rmtty.sg_flags &= ~TANDEM;
|
|
arg.sg_flags &= ~TANDEM;
|
|
}
|
|
ioctl(FD, TIOCSETP, &rmtty);
|
|
ioctl(0, TIOCSETP, &arg);
|
|
}
|
|
|
|
/*
|
|
* Send a break.
|
|
*/
|
|
genbrk()
|
|
{
|
|
|
|
ioctl(FD, TIOCSBRK, NULL);
|
|
sleep(1);
|
|
ioctl(FD, TIOCCBRK, NULL);
|
|
}
|
|
|
|
/*
|
|
* Suspend tip
|
|
*/
|
|
suspend(c)
|
|
char c;
|
|
{
|
|
|
|
unraw();
|
|
kill(c == CTRL('y') ? getpid() : 0, SIGTSTP);
|
|
raw();
|
|
}
|
|
|
|
/*
|
|
* expand a file name if it includes shell meta characters
|
|
*/
|
|
|
|
char *
|
|
expand(name)
|
|
char name[];
|
|
{
|
|
static char xname[BUFSIZ];
|
|
char cmdbuf[BUFSIZ];
|
|
register int pid, l, rc;
|
|
register char *cp, *Shell;
|
|
int s, pivec[2], (*sigint)();
|
|
|
|
if (!anyof(name, "~{[*?$`'\"\\"))
|
|
return(name);
|
|
/* sigint = signal(SIGINT, SIG_IGN); */
|
|
if (pipe(pivec) < 0) {
|
|
perror("pipe");
|
|
/* signal(SIGINT, sigint) */
|
|
return(name);
|
|
}
|
|
sprintf(cmdbuf, "echo %s", name);
|
|
if ((pid = vfork()) == 0) {
|
|
Shell = value(SHELL);
|
|
if (Shell == NOSTR)
|
|
Shell = _PATH_BSHELL;
|
|
close(pivec[0]);
|
|
close(1);
|
|
dup(pivec[1]);
|
|
close(pivec[1]);
|
|
close(2);
|
|
shell_uid();
|
|
execl(Shell, Shell, "-c", cmdbuf, 0);
|
|
_exit(1);
|
|
}
|
|
if (pid == -1) {
|
|
perror("fork");
|
|
close(pivec[0]);
|
|
close(pivec[1]);
|
|
return(NOSTR);
|
|
}
|
|
close(pivec[1]);
|
|
l = read(pivec[0], xname, BUFSIZ);
|
|
close(pivec[0]);
|
|
while (wait(&s) != pid);
|
|
;
|
|
s &= 0377;
|
|
if (s != 0 && s != SIGPIPE) {
|
|
fprintf(stderr, "\"Echo\" failed\n");
|
|
return(NOSTR);
|
|
}
|
|
if (l < 0) {
|
|
perror("read");
|
|
return(NOSTR);
|
|
}
|
|
if (l == 0) {
|
|
fprintf(stderr, "\"%s\": No match\n", name);
|
|
return(NOSTR);
|
|
}
|
|
if (l == BUFSIZ) {
|
|
fprintf(stderr, "Buffer overflow expanding \"%s\"\n", name);
|
|
return(NOSTR);
|
|
}
|
|
xname[l] = 0;
|
|
for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--)
|
|
;
|
|
*++cp = '\0';
|
|
return(xname);
|
|
}
|
|
|
|
/*
|
|
* Are any of the characters in the two strings the same?
|
|
*/
|
|
|
|
anyof(s1, s2)
|
|
register char *s1, *s2;
|
|
{
|
|
register int c;
|
|
|
|
while (c = *s1++)
|
|
if (any(c, s2))
|
|
return(1);
|
|
return(0);
|
|
}
|