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No \n in syslog() strings. Add man page to Xrefs. Change null byte to NUL byte.

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This commit is contained in:
Philippe Charnier 1997-12-02 12:30:04 +00:00
parent c7c2ef669a
commit a40772799f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=31490
2 changed files with 37 additions and 23 deletions
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44
libexec/rshd/rshd.8
View File

@ -30,7 +30,7 @@
.\" SUCH DAMAGE.
.\"
.\" @(#)rshd.8 8.1 (Berkeley) 6/4/93
.\" $Id: rshd.8,v 1.8 1997/04/23 03:06:47 davidn Exp $
.\" $Id: rshd.8,v 1.9 1997/07/18 21:04:17 wosch Exp $
.\"
.Dd June 4, 1993
.Dt RSHD 8
@ -43,7 +43,7 @@
.Op Fl alnL
.Sh DESCRIPTION
The
.Nm rshd
.Nm
server
is the server for the
.Xr rcmd 3
@ -53,7 +53,7 @@ program. The server provides remote execution facilities
with authentication based on privileged port numbers from trusted hosts.
.Pp
The
.Nm rshd
.Nm
server
listens for service requests at the port indicated in
the ``cmd'' service specification; see
@ -67,7 +67,9 @@ If the port is not in the range 512-1023, the server
aborts the connection.
.It
The server reads characters from the socket up
to a null (`\e0') byte. The resultant string is
to a
.Tn NUL
(`\e0') byte. The resultant string is
interpreted as an
.Tn ASCII
number, base 10.
@ -85,7 +87,7 @@ and requests the corresponding host name (see
.Xr gethostbyaddr 3 ,
.Xr hosts 5
and
.Xr named 8 ) .
.Xr named 8 ).
If the hostname cannot be determined,
the dot-notation representation of the host address is used.
If the hostname is in the same domain as the server (according to
@ -96,7 +98,7 @@ option is given,
the addresses for the hostname are requested,
verifying that the name and address correspond.
If address verification fails, the connection is aborted
with the message, ``Host address mismatch.''
with the message: ``Host address mismatch.''.
.It
A null terminated user name of at most 16 characters
is retrieved on the initial socket. This user name
@ -126,7 +128,9 @@ file found in the user's home directory. The
.Fl l
option prevents
.Xr ruserok 3
from doing any validation based on the user's ``.rhosts'' file,
from doing any validation based on the user's
.Pa .rhosts
file,
unless the user is the superuser.
.It
If the file
@ -134,18 +138,23 @@ If the file
exists and the user is not the superuser,
the connection is closed.
The name of the nologin file may be overridden
using the nologin= capability in login.conf
using the nologin capability in
.Pa /etc/login.conf
according to the local user's login class,
which may also be used to restrict rsh access by
which may also be used to restrict
.Xr rsh 1
access by
login time (times.allow and times.deny capabilities)
and remote host (hosts.allow and hosts.deny capabilities).
.It
A null byte is returned on the initial socket
A
.Tn NUL
byte is returned on the initial socket
and the command line is passed to the normal login
shell of the user. The
shell inherits the network connections established
by
.Nm rshd .
.Nm Ns .
.El
.Pp
Transport-level keepalive messages are enabled unless the
@ -184,18 +193,20 @@ No password file entry for the user name existed
or the authentication procedure described above failed.
.It Sy Remote directory.
The
.Xr chdir
command to the home directory failed.
.Xr chdir 2
function to the home directory failed.
.It Sy Logins not available right now.
Rsh was attempted outside the allowed hours defined in
login.conf for the local user's login class.
.Xr Rsh 1
was attempted outside the allowed hours defined in
.Pa /etc/login.conf
for the local user's login class.
.It Sy Can't make pipe.
The pipe needed for the
.Em stderr ,
wasn't created.
.It Sy Can't fork; try again.
A
.Xr fork
.Xr fork 2
by the server failed.
.It Sy <shellname>: ...
The user's login shell could not be started. This message is returned
@ -220,6 +231,7 @@ and is not preceded by a flag byte.
.Bl -tag -width /etc/hosts -compact
.It Pa /etc/hosts
.It Pa /etc/hosts.equiv
.It Pa /etc/login.conf
.It Pa $HOME/.rhosts
.It Pa /etc/nologin
.El

16
libexec/rshd/rshd.c
View File

@ -29,8 +29,6 @@
* 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.
*
* $Id: rshd.c,v 1.18 1997/07/18 21:04:19 wosch Exp $
*/
#ifndef lint
@ -40,7 +38,11 @@ static const char copyright[] =
#endif /* not lint */
#ifndef lint
#if 0
static const char sccsid[] = "@(#)rshd.c 8.2 (Berkeley) 4/6/94";
#endif
static const char rcsid[] =
"$Id$";
#endif /* not lint */
/*
@ -239,7 +241,7 @@ doit(fromp)
#endif
fromp->sin_port = ntohs((u_short)fromp->sin_port);
if (fromp->sin_family != AF_INET) {
syslog(LOG_ERR, "malformed \"from\" address (af %d)\n",
syslog(LOG_ERR, "malformed \"from\" address (af %d)",
fromp->sin_family);
exit(1);
}
@ -259,7 +261,7 @@ doit(fromp)
u_char c = optbuf[i];
if (c == IPOPT_LSRR || c == IPOPT_SSRR) {
syslog(LOG_NOTICE,
"Connection refused from %s with IP option %s",
"connection refused from %s with IP option %s",
inet_ntoa(fromp->sin_addr),
c == IPOPT_LSRR ? "LSRR" : "SSRR");
exit(1);
@ -278,7 +280,7 @@ doit(fromp)
if (fromp->sin_port >= IPPORT_RESERVED ||
fromp->sin_port < IPPORT_RESERVED/2) {
syslog(LOG_NOTICE|LOG_AUTH,
"Connection from %s on illegal port %u",
"connection from %s on illegal port %u",
inet_ntoa(fromp->sin_addr),
fromp->sin_port);
exit(1);
@ -361,7 +363,7 @@ doit(fromp)
hp = gethostbyname(remotehost);
if (hp == NULL) {
syslog(LOG_INFO,
"Couldn't look up address for %s",
"couldn't look up address for %s",
remotehost);
errorstr =
"Couldn't look up address for your host (%s)\n";
@ -372,7 +374,7 @@ doit(fromp)
} else for (; ; hp->h_addr_list++) {
if (hp->h_addr_list[0] == NULL) {
syslog(LOG_NOTICE,
"Host addr %s not listed for host %s",
"host addr %s not listed for host %s",
inet_ntoa(fromp->sin_addr),
hp->h_name);
errorstr =