e292a0e3f1
1. Don't do tty stuff to stdin if stdin isn't a tty. 2. When running in non-interactive mode, don't select(2) on the standard input. This un-breaks non-interactive portupgrade. PR: bin/59036 [1] PR: bin/56166, bin/57414, ports/57415, ports/60534 [2] MFC after: 7 days Approved by: rwatson (mentor)
284 lines
6.2 KiB
C
284 lines
6.2 KiB
C
/*
|
|
* Copyright (c) 1980, 1992, 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#ifndef lint
|
|
static const char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1992, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif
|
|
|
|
#ifndef lint
|
|
static const char sccsid[] = "@(#)script.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <libutil.h>
|
|
#include <paths.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <termios.h>
|
|
#include <unistd.h>
|
|
|
|
FILE *fscript;
|
|
int master, slave;
|
|
int child;
|
|
const char *fname;
|
|
int qflg, ttyflg;
|
|
|
|
struct termios tt;
|
|
|
|
void done(int) __dead2;
|
|
void dooutput(void);
|
|
void doshell(char **);
|
|
void fail(void);
|
|
void finish(void);
|
|
static void usage(void);
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int cc;
|
|
struct termios rtt, stt;
|
|
struct winsize win;
|
|
int aflg, kflg, ch, n;
|
|
struct timeval tv, *tvp;
|
|
time_t tvec, start;
|
|
char obuf[BUFSIZ];
|
|
char ibuf[BUFSIZ];
|
|
fd_set rfd;
|
|
int flushtime = 30;
|
|
|
|
aflg = kflg = 0;
|
|
while ((ch = getopt(argc, argv, "aqkt:")) != -1)
|
|
switch(ch) {
|
|
case 'a':
|
|
aflg = 1;
|
|
break;
|
|
case 'q':
|
|
qflg = 1;
|
|
break;
|
|
case 'k':
|
|
kflg = 1;
|
|
break;
|
|
case 't':
|
|
flushtime = atoi(optarg);
|
|
if (flushtime < 0)
|
|
err(1, "invalid flush time %d", flushtime);
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc > 0) {
|
|
fname = argv[0];
|
|
argv++;
|
|
argc--;
|
|
} else
|
|
fname = "typescript";
|
|
|
|
if ((fscript = fopen(fname, aflg ? "a" : "w")) == NULL)
|
|
err(1, "%s", fname);
|
|
|
|
if (ttyflg = isatty(STDIN_FILENO)) {
|
|
if (tcgetattr(STDIN_FILENO, &tt) == -1)
|
|
err(1, "tcgetattr");
|
|
if (ioctl(STDIN_FILENO, TIOCGWINSZ, &win) == -1)
|
|
err(1, "ioctl");
|
|
if (openpty(&master, &slave, NULL, &tt, &win) == -1)
|
|
err(1, "openpty");
|
|
} else {
|
|
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
|
|
err(1, "openpty");
|
|
}
|
|
|
|
if (!qflg) {
|
|
tvec = time(NULL);
|
|
(void)printf("Script started, output file is %s\n", fname);
|
|
(void)fprintf(fscript, "Script started on %s", ctime(&tvec));
|
|
fflush(fscript);
|
|
}
|
|
if (ttyflg) {
|
|
rtt = tt;
|
|
cfmakeraw(&rtt);
|
|
rtt.c_lflag &= ~ECHO;
|
|
(void)tcsetattr(STDIN_FILENO, TCSAFLUSH, &rtt);
|
|
}
|
|
|
|
child = fork();
|
|
if (child < 0) {
|
|
warn("fork");
|
|
done(1);
|
|
}
|
|
if (child == 0)
|
|
doshell(argv);
|
|
|
|
if (flushtime > 0)
|
|
tvp = &tv;
|
|
else
|
|
tvp = NULL;
|
|
|
|
start = time(0);
|
|
FD_ZERO(&rfd);
|
|
for (;;) {
|
|
FD_SET(master, &rfd);
|
|
if (argv[0] == NULL)
|
|
FD_SET(STDIN_FILENO, &rfd);
|
|
if (flushtime > 0) {
|
|
tv.tv_sec = flushtime;
|
|
tv.tv_usec = 0;
|
|
}
|
|
n = select(master + 1, &rfd, 0, 0, tvp);
|
|
if (n < 0 && errno != EINTR)
|
|
break;
|
|
if (n > 0 && FD_ISSET(STDIN_FILENO, &rfd)) {
|
|
cc = read(STDIN_FILENO, ibuf, BUFSIZ);
|
|
if (cc <= 0)
|
|
break;
|
|
if (cc > 0) {
|
|
(void)write(master, ibuf, cc);
|
|
if (kflg && tcgetattr(master, &stt) >= 0 &&
|
|
((stt.c_lflag & ECHO) == 0)) {
|
|
(void)fwrite(ibuf, 1, cc, fscript);
|
|
}
|
|
}
|
|
}
|
|
if (n > 0 && FD_ISSET(master, &rfd)) {
|
|
cc = read(master, obuf, sizeof (obuf));
|
|
if (cc <= 0)
|
|
break;
|
|
(void)write(STDOUT_FILENO, obuf, cc);
|
|
(void)fwrite(obuf, 1, cc, fscript);
|
|
}
|
|
tvec = time(0);
|
|
if (tvec - start >= flushtime) {
|
|
fflush(fscript);
|
|
start = tvec;
|
|
}
|
|
}
|
|
finish();
|
|
done(0);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: script [-a] [-q] [-k] [-t time] [file] [command]\n");
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
finish(void)
|
|
{
|
|
pid_t pid;
|
|
int die, e, status;
|
|
|
|
die = e = 0;
|
|
while ((pid = wait3(&status, WNOHANG, 0)) > 0)
|
|
if (pid == child) {
|
|
die = 1;
|
|
if (WIFEXITED(status))
|
|
e = WEXITSTATUS(status);
|
|
else if (WIFSIGNALED(status))
|
|
e = WTERMSIG(status);
|
|
else /* can't happen */
|
|
e = 1;
|
|
}
|
|
|
|
if (die)
|
|
done(e);
|
|
}
|
|
|
|
void
|
|
doshell(char **av)
|
|
{
|
|
const char *shell;
|
|
|
|
shell = getenv("SHELL");
|
|
if (shell == NULL)
|
|
shell = _PATH_BSHELL;
|
|
|
|
(void)close(master);
|
|
(void)fclose(fscript);
|
|
login_tty(slave);
|
|
if (av[0]) {
|
|
execvp(av[0], av);
|
|
warn("%s", av[0]);
|
|
} else {
|
|
execl(shell, shell, "-i", (char *)NULL);
|
|
warn("%s", shell);
|
|
}
|
|
fail();
|
|
}
|
|
|
|
void
|
|
fail(void)
|
|
{
|
|
(void)kill(0, SIGTERM);
|
|
done(1);
|
|
}
|
|
|
|
void
|
|
done(int eno)
|
|
{
|
|
time_t tvec;
|
|
|
|
if (ttyflg)
|
|
(void)tcsetattr(STDIN_FILENO, TCSAFLUSH, &tt);
|
|
tvec = time(NULL);
|
|
if (!qflg) {
|
|
(void)fprintf(fscript,"\nScript done on %s", ctime(&tvec));
|
|
(void)printf("\nScript done, output file is %s\n", fname);
|
|
}
|
|
(void)fclose(fscript);
|
|
(void)close(master);
|
|
exit(eno);
|
|
}
|