diff options
Diffstat (limited to 'usr.bin/biff')
| -rw-r--r-- | usr.bin/biff/Makefile | 3 | ||||
| -rw-r--r-- | usr.bin/biff/Makefile.depend | 15 | ||||
| -rw-r--r-- | usr.bin/biff/biff.1 | 120 | ||||
| -rw-r--r-- | usr.bin/biff/biff.c | 100 |
4 files changed, 238 insertions, 0 deletions
diff --git a/usr.bin/biff/Makefile b/usr.bin/biff/Makefile new file mode 100644 index 000000000000..6ba161554ccc --- /dev/null +++ b/usr.bin/biff/Makefile @@ -0,0 +1,3 @@ +PROG= biff + +.include <bsd.prog.mk> diff --git a/usr.bin/biff/Makefile.depend b/usr.bin/biff/Makefile.depend new file mode 100644 index 000000000000..6ef78fac5cbf --- /dev/null +++ b/usr.bin/biff/Makefile.depend @@ -0,0 +1,15 @@ +# Autogenerated - do NOT edit! + +DIRDEPS = \ + include \ + include/xlocale \ + lib/${CSU_DIR} \ + lib/libc \ + lib/libcompiler_rt \ + + +.include <dirdeps.mk> + +.if ${DEP_RELDIR} == ${_DEP_RELDIR} +# local dependencies - needed for -jN in clean tree +.endif diff --git a/usr.bin/biff/biff.1 b/usr.bin/biff/biff.1 new file mode 100644 index 000000000000..70370d41f843 --- /dev/null +++ b/usr.bin/biff/biff.1 @@ -0,0 +1,120 @@ +.\" Copyright (c) 1980, 1990, 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. 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. +.\" +.Dd April 28, 2013 +.Dt BIFF 1 +.Os +.Sh NAME +.Nm biff +.Nd "be notified if mail arrives and who it is from" +.Sh SYNOPSIS +.Nm +.Op Cm n | y | b +.Sh DESCRIPTION +The +.Nm +utility informs the system whether you want to be notified on your terminal +when mail arrives. +.Pp +Affected is the first terminal associated with the standard input, +standard output or standard error file descriptor, in that order. +Thus, it is possible to use the redirection facilities of a shell to +toggle the notification for other terminals than the one +.Nm +runs on. +.Pp +The following options are available: +.Bl -tag -width indent +.It Cm n +Disable notification. +.It Cm y +Enable header notification. +.It Cm b +Enable bell notification. +.El +.Pp +When header notification is enabled, the header and first few lines of +the message will be printed on your terminal whenever mail arrives. +A +.Dq "biff y" +command is often included in the file +.Pa .login +or +.Pa .profile +to be executed at each login. +.Pp +When bell notification is enabled, only two bell characters +.Tn ( ASCII +\\007) +will be printed on your terminal whenever mail arrives. +.Pp +If no arguments are given, +.Nm +displays the present notification status of the terminal to the +standard output. +.Pp +The +.Nm +utility operates asynchronously. +For synchronous notification use the +.Ev MAIL +variable of +.Xr sh 1 +or the +.Va mail +variable of +.Xr csh 1 . +.Sh EXIT STATUS +The +.Nm +utility exits with one of the following values: +.Bl -tag -width indent +.It 0 +Notification was enabled at the time of invocation. +.It 1 +Notification was disabled at the time of invocation. +.It >1 +An error occurred. +.El +.Sh COMPATIBILITY +Previous versions of the +.Nm +utility affected the terminal attached to standard error without first +trying the standard input or output devices. +.Sh SEE ALSO +.Xr csh 1 , +.Xr mail 1 , +.Xr sh 1 , +.Xr comsat 8 +.Sh HISTORY +The +.Nm +command appeared in +.Bx 4.0 . +It was named after the dog of Heidi Stettner. +He died +in August 1993, at 15. diff --git a/usr.bin/biff/biff.c b/usr.bin/biff/biff.c new file mode 100644 index 000000000000..b1cdd5186e7e --- /dev/null +++ b/usr.bin/biff/biff.c @@ -0,0 +1,100 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1980, 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. 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/stat.h> + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +static void usage(void) __dead2; + +int +main(int argc, char *argv[]) +{ + struct stat sb; + int ch; + char *name; + + + while ((ch = getopt(argc, argv, "")) != -1) + switch(ch) { + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if ((name = ttyname(STDIN_FILENO)) == NULL && + (name = ttyname(STDOUT_FILENO)) == NULL && + (name = ttyname(STDERR_FILENO)) == NULL) + err(2, "unknown tty"); + + if (stat(name, &sb)) + err(2, "stat"); + + if (*argv == NULL) { + (void)printf("is %s\n", + sb.st_mode & S_IXUSR ? "y" : + sb.st_mode & S_IXGRP ? "b" : "n"); + return (sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1); + + } + + switch (argv[0][0]) { + case 'n': + if (chmod(name, sb.st_mode & ~(S_IXUSR | S_IXGRP)) < 0) + err(2, "%s", name); + break; + case 'y': + if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXUSR) + < 0) + err(2, "%s", name); + break; + case 'b': + if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXGRP) + < 0) + err(2, "%s", name); + break; + default: + usage(); + } + return (sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1); +} + +static void +usage(void) +{ + (void)fprintf(stderr, "usage: biff [n | y | b]\n"); + exit(2); +} |