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Add usage(). Use err(3) instead of local redefinition.

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This commit is contained in:
Philippe Charnier 1997-08-08 12:24:49 +00:00
parent 2545677c14
commit 236d2f5583
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=27980
2 changed files with 24 additions and 42 deletions
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6
usr.bin/script/script.1
View File

@ -38,7 +38,7 @@
.Nm script
.Nd make typescript of terminal session
.Sh SYNOPSIS
.Nm script
.Nm
.Op Fl a
.Op Ar file
.Sh DESCRIPTION
@ -99,7 +99,7 @@ The following environment variable is utilized by
If the variable
.Ev SHELL
exists, the shell forked by
.Nm script
.Nm
will be that shell. If
.Ev SHELL
is not set, the Bourne shell
@ -112,7 +112,7 @@ is assumed. (Most shells set this variable automatically).
mechanism).
.Sh HISTORY
The
.Nm script
.Nm
command appeared in
.Bx 3.0 .
.Sh BUGS

60
usr.bin/script/script.c
View File

@ -32,13 +32,17 @@
*/
#ifndef lint
static char copyright[] =
static const char copyright[] =
"@(#) Copyright (c) 1980, 1992, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)script.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id$";
#endif /* not lint */
#include <sys/types.h>
@ -47,8 +51,9 @@ static char sccsid[] = "@(#)script.c 8.1 (Berkeley) 6/6/93";
#include <sys/ioctl.h>
#include <sys/time.h>
#include <errno.h>
#include <err.h>
#include <fcntl.h>
#include <libutil.h>
#include <paths.h>
#include <signal.h>
#include <stdio.h>
@ -68,10 +73,10 @@ struct termios tt;
void done __P((void)) __dead2;
void dooutput __P((void));
void doshell __P((void));
void err __P((const char *, ...));
void fail __P((void));
void finish __P((int));
void scriptflush __P((int));
static void usage __P((void));
int
main(argc, argv)
@ -92,8 +97,7 @@ main(argc, argv)
break;
case '?':
default:
(void)fprintf(stderr, "usage: script [-a] [file]\n");
exit(1);
usage();
}
argc -= optind;
argv += optind;
@ -104,12 +108,12 @@ main(argc, argv)
fname = "typescript";
if ((fscript = fopen(fname, aflg ? "a" : "w")) == NULL)
err("%s: %s", fname, strerror(errno));
err(1, "%s", fname);
(void)tcgetattr(STDIN_FILENO, &tt);
(void)ioctl(STDIN_FILENO, TIOCGWINSZ, &win);
if (openpty(&master, &slave, NULL, &tt, &win) == -1)
err("openpty: %s", strerror(errno));
err(1, "openpty");
(void)printf("Script started, output file is %s\n", fname);
rtt = tt;
@ -120,13 +124,13 @@ main(argc, argv)
(void)signal(SIGCHLD, finish);
child = fork();
if (child < 0) {
perror("fork");
warn("fork");
fail();
}
if (child == 0) {
subchild = child = fork();
if (child < 0) {
perror("fork");
warn("fork");
fail();
}
if (child)
@ -141,6 +145,13 @@ main(argc, argv)
done();
}
static void
usage()
{
(void)fprintf(stderr, "usage: script [-a] [file]\n");
exit(1);
}
void
finish(signo)
int signo;
@ -208,7 +219,7 @@ doshell()
(void)fclose(fscript);
login_tty(slave);
execl(shell, "sh", "-i", NULL);
perror(shell);
warn(shell);
fail();
}
@ -236,32 +247,3 @@ done()
}
exit(0);
}
#if __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
void
#if __STDC__
err(const char *fmt, ...)
#else
err(fmt, va_alist)
char *fmt;
va_dcl
#endif
{
va_list ap;
#if __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
(void)fprintf(stderr, "script: ");
(void)vfprintf(stderr, fmt, ap);
va_end(ap);
(void)fprintf(stderr, "\n");
exit(1);
/* NOTREACHED */
}