-/* $NetBSD: script.c,v 1.6 1998/04/02 11:08:34 kleink Exp $ */
-
/*
* Copyright (c) 1980, 1992, 1993
* The Regents of the University of California. All rights reserved.
*/
#include <sys/cdefs.h>
+
+__FBSDID("$FreeBSD: src/usr.bin/script/script.c,v 1.24 2004/02/15 17:30:13 cperciva Exp $");
+
#ifndef lint
-__COPYRIGHT("@(#) Copyright (c) 1980, 1992, 1993\n\
- The Regents of the University of California. All rights reserved.\n");
-#endif /* not lint */
+static const char copyright[] =
+"@(#) Copyright (c) 1980, 1992, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif
#ifndef lint
-#if 0
-static char sccsid[] = "@(#)script.c 8.1 (Berkeley) 6/6/93";
+static const char sccsid[] = "@(#)script.c 8.1 (Berkeley) 6/6/93";
#endif
-__RCSID("$NetBSD: script.c,v 1.6 1998/04/02 11:08:34 kleink Exp $");
-#endif /* not lint */
#include <sys/types.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
+#ifndef __APPLE__
+#include <libutil.h>
+#endif /* !__APPLE__ */
#include <paths.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
-#include <time.h>
-#include <tzfile.h>
#include <unistd.h>
+#ifdef __APPLE__
#include <util.h>
+#endif /* __APPLE__ */
FILE *fscript;
int master, slave;
-int child, subchild;
-int outcc;
-char *fname;
+int child;
+const char *fname;
+int qflg, ttyflg;
struct termios tt;
-void done __P((void));
-void dooutput __P((void));
-void doshell __P((void));
-void fail __P((void));
-void finish __P((int));
-int main __P((int, char **));
-void scriptflush __P((int));
+void done(int) __dead2;
+void dooutput(void);
+void doshell(char **);
+void fail(void);
+void finish(void);
+static void usage(void);
int
-main(argc, argv)
- int argc;
- char *argv[];
+main(int argc, char *argv[])
{
int cc;
- struct termios rtt;
+ struct termios rtt, stt;
struct winsize win;
- int aflg, ch;
+ 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 = 0;
- while ((ch = getopt(argc, argv, "a")) != -1)
+ 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:
- (void)fprintf(stderr, "usage: script [-a] [file]\n");
- exit(1);
+ usage();
}
argc -= optind;
argv += optind;
- if (argc > 0)
+ if (argc > 0) {
fname = argv[0];
- else
+ argv++;
+ argc--;
+ } else
fname = "typescript";
if ((fscript = fopen(fname, aflg ? "a" : "w")) == NULL)
- err(1, "fopen %s", fname);
+ err(1, "%s", fname);
- (void)tcgetattr(STDIN_FILENO, &tt);
- (void)ioctl(STDIN_FILENO, TIOCGWINSZ, &win);
- if (openpty(&master, &slave, NULL, &tt, &win) == -1)
- err(1, "openpty");
+ 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");
+ }
- (void)printf("Script started, output file is %s\n", fname);
- rtt = tt;
- cfmakeraw(&rtt);
- rtt.c_lflag &= ~ECHO;
- (void)tcsetattr(STDIN_FILENO, TCSAFLUSH, &rtt);
+ 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);
+ }
- (void)signal(SIGCHLD, finish);
child = fork();
if (child < 0) {
warn("fork");
- fail();
+ done(1);
}
- if (child == 0) {
- subchild = child = fork();
- if (child < 0) {
- warn("fork");
- fail();
+ if (child == 0)
+ doshell(argv);
+#ifdef __APPLE__
+ (void)close(slave);
+#endif /* __APPLE__ */
+
+ if (flushtime > 0)
+ tvp = &tv;
+ else
+ tvp = NULL;
+
+ start = time(0);
+ FD_ZERO(&rfd);
+ for (;;) {
+ FD_SET(master, &rfd);
+ 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, 0);
+ 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;
}
- if (child)
- dooutput();
- else
- doshell();
}
-
- (void)fclose(fscript);
- while ((cc = read(STDIN_FILENO, ibuf, BUFSIZ)) > 0)
- (void)write(master, ibuf, cc);
- done();
- /* NOTREACHED */
- return (0);
+ finish();
+ done(0);
}
-void
-finish(signo)
- int signo;
+static void
+usage(void)
{
- int die, pid;
- union wait status;
-
- die = 0;
- while ((pid = wait3((int *)&status, WNOHANG, 0)) > 0)
- if (pid == child)
- die = 1;
-
- if (die)
- done();
+ (void)fprintf(stderr,
+ "usage: script [-akq] [-t time] [file [command ...]]\n");
+ exit(1);
}
void
-dooutput()
+finish(void)
{
- struct itimerval value;
- int cc;
- time_t tvec;
- char obuf[BUFSIZ];
-
- (void)close(STDIN_FILENO);
- tvec = time(NULL);
- (void)fprintf(fscript, "Script started on %s", ctime(&tvec));
+ pid_t pid;
+ int die, e, status;
- (void)signal(SIGALRM, scriptflush);
- value.it_interval.tv_sec = SECSPERMIN / 2;
- value.it_interval.tv_usec = 0;
- value.it_value = value.it_interval;
- (void)setitimer(ITIMER_REAL, &value, NULL);
- for (;;) {
- cc = read(master, obuf, sizeof (obuf));
- if (cc <= 0)
- break;
- (void)write(1, obuf, cc);
- (void)fwrite(obuf, 1, cc, fscript);
- outcc += cc;
- }
- done();
-}
+ 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;
+ }
-void
-scriptflush(signo)
- int signo;
-{
- if (outcc) {
- (void)fflush(fscript);
- outcc = 0;
- }
+ if (die)
+ done(e);
}
void
-doshell()
+doshell(char **av)
{
- char *shell;
+ const char *shell;
shell = getenv("SHELL");
if (shell == NULL)
(void)close(master);
(void)fclose(fscript);
login_tty(slave);
- execl(shell, shell, "-i", NULL);
- warn("execl %s", shell);
+ if (av[0]) {
+ execvp(av[0], av);
+ warn("%s", av[0]);
+ } else {
+ execl(shell, shell, "-i", (char *)NULL);
+ warn("%s", shell);
+ }
fail();
}
void
-fail()
+fail(void)
{
-
(void)kill(0, SIGTERM);
- done();
+ done(1);
}
void
-done()
+done(int eno)
{
time_t tvec;
- if (subchild) {
- tvec = time(NULL);
- (void)fprintf(fscript,"\nScript done on %s", ctime(&tvec));
- (void)fclose(fscript);
- (void)close(master);
- } else {
+ if (ttyflg)
(void)tcsetattr(STDIN_FILENO, TCSAFLUSH, &tt);
- (void)printf("Script done, output file is %s\n", fname);
+ tvec = time(NULL);
+ if (!qflg) {
+ (void)fprintf(fscript,"\nScript done on %s", ctime(&tvec));
+ (void)printf("\nScript done, output file is %s\n", fname);
}
- exit(0);
+ (void)fclose(fscript);
+ (void)close(master);
+ exit(eno);
}
projects / apple / shell_cmds.git / blobdiff