diff options
Diffstat (limited to 'usr.bin/wall')
| -rw-r--r-- | usr.bin/wall/Makefile | 8 | ||||
| -rw-r--r-- | usr.bin/wall/ttymsg.c | 163 | ||||
| -rw-r--r-- | usr.bin/wall/wall.1 | 63 | ||||
| -rw-r--r-- | usr.bin/wall/wall.c | 201 |
4 files changed, 0 insertions, 435 deletions
diff --git a/usr.bin/wall/Makefile b/usr.bin/wall/Makefile deleted file mode 100644 index 65abb61..0000000 --- a/usr.bin/wall/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# @(#)Makefile 8.1 (Berkeley) 6/6/93 - -PROG= wall -SRCS= ttymsg.c wall.c -BINGRP= tty -BINMODE=2555 - -.include <bsd.prog.mk> diff --git a/usr.bin/wall/ttymsg.c b/usr.bin/wall/ttymsg.c deleted file mode 100644 index 6a7c3d1..0000000 --- a/usr.bin/wall/ttymsg.c +++ /dev/null @@ -1,163 +0,0 @@ -/* - * Copyright (c) 1989, 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[] = "@(#)ttymsg.c 8.2 (Berkeley) 11/16/93"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/uio.h> -#include <signal.h> -#include <fcntl.h> -#include <dirent.h> -#include <errno.h> -#include <paths.h> -#include <unistd.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -/* - * Display the contents of a uio structure on a terminal. Used by wall(1), - * syslogd(8), and talkd(8). Forks and finishes in child if write would block, - * waiting up to tmout seconds. Returns pointer to error string on unexpected - * error; string is not newline-terminated. Various "normal" errors are - * ignored (exclusive-use, lack of permission, etc.). - */ -char * -ttymsg(iov, iovcnt, line, tmout) - struct iovec *iov; - int iovcnt; - char *line; - int tmout; -{ - static char device[MAXNAMLEN] = _PATH_DEV; - static char errbuf[1024]; - register int cnt, fd, left, wret; - struct iovec localiov[6]; - int forked = 0; - - if (iovcnt > sizeof(localiov) / sizeof(localiov[0])) - return ("too many iov's (change code in wall/ttymsg.c)"); - - (void) strcpy(device + sizeof(_PATH_DEV) - 1, line); - if (strchr(device + sizeof(_PATH_DEV) - 1, '/')) { - /* A slash is an attempt to break security... */ - (void) snprintf(errbuf, sizeof(errbuf), "'/' in \"%s\"", - device); - return (errbuf); - } - - /* - * open will fail on slip lines or exclusive-use lines - * if not running as root; not an error. - */ - if ((fd = open(device, O_WRONLY|O_NONBLOCK, 0)) < 0) { - if (errno == EBUSY || errno == EACCES) - return (NULL); - (void) snprintf(errbuf, sizeof(errbuf), - "%s: %s", device, strerror(errno)); - return (errbuf); - } - - for (cnt = left = 0; cnt < iovcnt; ++cnt) - left += iov[cnt].iov_len; - - for (;;) { - wret = writev(fd, iov, iovcnt); - if (wret >= left) - break; - if (wret >= 0) { - left -= wret; - if (iov != localiov) { - bcopy(iov, localiov, - iovcnt * sizeof(struct iovec)); - iov = localiov; - } - for (cnt = 0; wret >= iov->iov_len; ++cnt) { - wret -= iov->iov_len; - ++iov; - --iovcnt; - } - if (wret) { - iov->iov_base += wret; - iov->iov_len -= wret; - } - continue; - } - if (errno == EWOULDBLOCK) { - int cpid, off = 0; - - if (forked) { - (void) close(fd); - _exit(1); - } - cpid = fork(); - if (cpid < 0) { - (void) snprintf(errbuf, sizeof(errbuf), - "fork: %s", strerror(errno)); - (void) close(fd); - return (errbuf); - } - if (cpid) { /* parent */ - (void) close(fd); - return (NULL); - } - forked++; - /* wait at most tmout seconds */ - (void) signal(SIGALRM, SIG_DFL); - (void) signal(SIGTERM, SIG_DFL); /* XXX */ - (void) sigsetmask(0); - (void) alarm((u_int)tmout); - (void) fcntl(fd, O_NONBLOCK, &off); - continue; - } - /* - * We get ENODEV on a slip line if we're running as root, - * and EIO if the line just went away. - */ - if (errno == ENODEV || errno == EIO) - break; - (void) close(fd); - if (forked) - _exit(1); - (void) snprintf(errbuf, sizeof(errbuf), - "%s: %s", device, strerror(errno)); - return (errbuf); - } - - (void) close(fd); - if (forked) - _exit(0); - return (NULL); -} diff --git a/usr.bin/wall/wall.1 b/usr.bin/wall/wall.1 deleted file mode 100644 index ed2f4c9..0000000 --- a/usr.bin/wall/wall.1 +++ /dev/null @@ -1,63 +0,0 @@ -.\" Copyright (c) 1989, 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. 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. -.\" -.\" @(#)wall.1 8.1 (Berkeley) 6/6/93 -.\" -.Dd June 6, 1993 -.Dt WALL 1 -.Os BSD 4 -.Sh NAME -.Nm wall -.Nd write a message to users -.Sh SYNOPSIS -.Nm wall -.Op Ar file -.Sh DESCRIPTION -.Nm Wall -displays the contents of -.Ar file -or, by default, its standard input, on the terminals of all -currently logged in users. -.Pp -Only the super-user can write on the -terminals of users who have chosen -to deny messages or are using a program which -automatically denies messages. -.Sh SEE ALSO -.Xr mesg 1 , -.Xr talk 1 , -.Xr write 1 , -.Xr shutdown 8 -.Sh HISTORY -A -.Nm -command appeared in -.At v7 . diff --git a/usr.bin/wall/wall.c b/usr.bin/wall/wall.c deleted file mode 100644 index 9b120ed..0000000 --- a/usr.bin/wall/wall.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * Copyright (c) 1988, 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. 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 copyright[] = -"@(#) Copyright (c) 1988, 1990, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -static char sccsid[] = "@(#)wall.c 8.2 (Berkeley) 11/16/93"; -#endif /* not lint */ - -/* - * This program is not related to David Wall, whose Stanford Ph.D. thesis - * is entitled "Mechanisms for Broadcast and Selective Broadcast". - */ - -#include <sys/param.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/uio.h> - -#include <paths.h> -#include <pwd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <utmp.h> - -void makemsg __P((char *)); - -#define IGNOREUSER "sleeper" - -int nobanner; -int mbufsize; -char *mbuf; - -/* ARGSUSED */ -int -main(argc, argv) - int argc; - char **argv; -{ - extern int optind; - int ch; - struct iovec iov; - struct utmp utmp; - FILE *fp; - char *p, *ttymsg(); - char line[sizeof(utmp.ut_line) + 1]; - - while ((ch = getopt(argc, argv, "n")) != EOF) - switch (ch) { - case 'n': - /* undoc option for shutdown: suppress banner */ - if (geteuid() == 0) - nobanner = 1; - break; - case '?': - default: -usage: - (void)fprintf(stderr, "usage: wall [file]\n"); - exit(1); - } - argc -= optind; - argv += optind; - if (argc > 1) - goto usage; - - makemsg(*argv); - - if (!(fp = fopen(_PATH_UTMP, "r"))) { - (void)fprintf(stderr, "wall: cannot read %s.\n", _PATH_UTMP); - exit(1); - } - iov.iov_base = mbuf; - iov.iov_len = mbufsize; - /* NOSTRICT */ - while (fread((char *)&utmp, sizeof(utmp), 1, fp) == 1) { - if (!utmp.ut_name[0] || - !strncmp(utmp.ut_name, IGNOREUSER, sizeof(utmp.ut_name))) - continue; - strncpy(line, utmp.ut_line, sizeof(utmp.ut_line)); - line[sizeof(utmp.ut_line)] = '\0'; - if ((p = ttymsg(&iov, 1, line, 60*5)) != NULL) - (void)fprintf(stderr, "wall: %s\n", p); - } - exit(0); -} - -void -makemsg(fname) - char *fname; -{ - register int ch, cnt; - struct tm *lt; - struct passwd *pw; - struct stat sbuf; - time_t now, time(); - FILE *fp; - int fd; - char *p, *whom, hostname[MAXHOSTNAMELEN], lbuf[100], tmpname[15]; - char *getlogin(), *strcpy(), *ttyname(); - - (void)strcpy(tmpname, _PATH_TMP); - (void)strcat(tmpname, "/wall.XXXXXX"); - if (!(fd = mkstemp(tmpname)) || !(fp = fdopen(fd, "r+"))) { - (void)fprintf(stderr, "wall: can't open temporary file.\n"); - exit(1); - } - (void)unlink(tmpname); - - if (!nobanner) { - if (!(whom = getlogin())) - whom = (pw = getpwuid(getuid())) ? pw->pw_name : "???"; - (void)gethostname(hostname, sizeof(hostname)); - (void)time(&now); - lt = localtime(&now); - - /* - * all this stuff is to blank out a square for the message; - * we wrap message lines at column 79, not 80, because some - * terminals wrap after 79, some do not, and we can't tell. - * Which means that we may leave a non-blank character - * in column 80, but that can't be helped. - */ - (void)fprintf(fp, "\r%79s\r\n", " "); - (void)sprintf(lbuf, "Broadcast Message from %s@%s", - whom, hostname); - (void)fprintf(fp, "%-79.79s\007\007\r\n", lbuf); - (void)sprintf(lbuf, " (%s) at %d:%02d ...", ttyname(2), - lt->tm_hour, lt->tm_min); - (void)fprintf(fp, "%-79.79s\r\n", lbuf); - } - (void)fprintf(fp, "%79s\r\n", " "); - - if (fname && !(freopen(fname, "r", stdin))) { - (void)fprintf(stderr, "wall: can't read %s.\n", fname); - exit(1); - } - while (fgets(lbuf, sizeof(lbuf), stdin)) - for (cnt = 0, p = lbuf; (ch = *p) != '\0'; ++p, ++cnt) { - if (cnt == 79 || ch == '\n') { - for (; cnt < 79; ++cnt) - putc(' ', fp); - putc('\r', fp); - putc('\n', fp); - cnt = 0; - } else - putc(ch, fp); - } - (void)fprintf(fp, "%79s\r\n", " "); - rewind(fp); - - if (fstat(fd, &sbuf)) { - (void)fprintf(stderr, "wall: can't stat temporary file.\n"); - exit(1); - } - mbufsize = sbuf.st_size; - if (!(mbuf = malloc((u_int)mbufsize))) { - (void)fprintf(stderr, "wall: out of memory.\n"); - exit(1); - } - if (fread(mbuf, sizeof(*mbuf), mbufsize, fp) != mbufsize) { - (void)fprintf(stderr, "wall: can't read temporary file.\n"); - exit(1); - } - (void)close(fd); -} |
