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authorBill Fumerola <billf@FreeBSD.org>2000-11-01 23:56:27 +0000
committerBill Fumerola <billf@FreeBSD.org>2000-11-01 23:56:27 +0000
commit31f088e83033ab226fa283429c2ab2fdf8fc33af (patch)
tree8cf609fdb92c516e40363009d9219b14a165d936 /sysutils
parentUpdate MASTER_SITE. Add WWW: to pkg-descr (diff)
The descr is not a place to just cram the entire README. Instead, take the
first paragraph which gives a good overview, and install the README file.
Notes
Notes: svn path=/head/; revision=34574
Diffstat (limited to 'sysutils')
-rw-r--r--sysutils/socket/Makefile5
-rw-r--r--sysutils/socket/pkg-descr137
-rw-r--r--sysutils/socket/pkg-plist2
3 files changed, 7 insertions, 137 deletions
diff --git a/sysutils/socket/Makefile b/sysutils/socket/Makefile
index fbe8345b7e9d..f4ef31a04f17 100644
--- a/sysutils/socket/Makefile
+++ b/sysutils/socket/Makefile
@@ -14,4 +14,9 @@ MAINTAINER= wosch@FreeBSD.org
MAN1= socket.1
+post-install:
+
+ @${MKDIR} ${PREFIX}/share/doc/socket
+ @${INSTALL_DATA} ${WRKSRC}/README ${PREFIX}/share/doc/socket
+
.include <bsd.port.mk>
diff --git a/sysutils/socket/pkg-descr b/sysutils/socket/pkg-descr
index ba54719621bb..7bfc326e0d98 100644
--- a/sysutils/socket/pkg-descr
+++ b/sysutils/socket/pkg-descr
@@ -1,146 +1,9 @@
-This is the README file for Socket-1.1.
-
-What is it?
-
The program Socket implements access to TCP sockets from shell level.
First written for the need to open a server socket and read and write
to the socket interactively for testing purposes, it quickly evolved
into a generic tool providing the socket interface for shell script
and interactive use.
-
-Client mode
-
-In client mode (which is the default) it connects to a given port at a
-given host. Data read from the socket is written to stdout, data read
-from stdin is written to the socket. When the peer closes the
-connection or a signal is received, the program terminates. An
-example for this is the following command:
-
- % socket coma.cs.tu-berlin.de nntp
-
-This connects to the host coma.cs.tu-berlin.de at the nntp port
-(provided these two names can be resolved through gethostbyname(3) and
-getservbyname(3)). The user can now issue commands to the NNTP
-server, any output from the server is written to the user's terminal.
-
-
-Server mode
-
-In server mode (indicated by the "-s" command line switch) it binds a
-server socket to the given port on the local host and accepts a
-connection. When a client connects to this socket, all data read from
-the socket is written to stdout, data read from stdin is written to
-the socket. For example, the command
-
- % socket -s 3917
-
-accepts a connection on port 3917.
-
-
-Restricting data flow
-
-It is not always desirable to have data flow in both directions, e.g.
-when the program is running in the background, it would be stopped if
-it tried to read from the terminal. So the user can advise the program
-only to read from the socket ("-r") or only to write to the socket
-("-w"). Especially when Socket executes a program (see below), it is
-important *not* to write to the program's stdin if the program doesn't
-read it. This is the main reason why I added this option.
-
-
-Closing connection on EOF
-
-For non-interactive use it is not always clear when to close the
-network connection; this is still an unsolved problem. But often it
-will be enough to close the connection when some data has been written
-to the socket. In this case the "quit" switch ("-q") can be used:
-when an end-of-file condition on stdin occurs, Socket closes the
-connection.
-
-
-Executing a program
-
-An interesting use of a server socket is to execute a program when a
-client connects to it. This done with the "-p" switch. Stdin,
-stdout, and stderr of the program are read from resp. written to the
-socket. Since the server is usually expected to accept another
-connection after a connection has been closed, the "loop" switch
-("-l") makes it do exactly that.
-
-
-CRLF conversion
-
-The Internet protocols specify a CRLF sequence (Carriage Return
-Linefeed) to terminate a line, whereas UNIX uses only a single LF. If
-the user specifies the "crlf" switch ("-c"), all CRLF sequences that
-are read from the socket are converted to a single LF on output. All
-single LFs on input are converted to a CRLF sequence when written to
-the socket.
-
-
-Background mode
-
-It may be desirable for a server program to run in background. For
-that purpose the "background" switch ("-b") is provided. If it is
-set, Socket runs in background, detaches itself from the controlling
-tty, closes the file descriptors associated with the tty, and changes
-it current directory to the root directory. It is still possible to
-redirect the standard file descriptors to a file.
-
-
-Forking child to handle connection
-
-Often one wants the server to be able to respond to another client
-immediately, even before the connection to the previous client has
-been closed. For this case, Socket can fork a client to handle a
-connection while the father process already accepts the next
-connection. To get this behaviour, specify the "-f" option.
-
-
-With all these options, a typical server call would look like
-
- % socket -bcfslqp program port
-
-Gee, I know that's a lot of options for the standard case, but I
-really want to make all these things *optional*.
-
-
-Verbose
-
-At last, there is also a "verbose" option ("-v"). If this option is
-specified, a message is given for each opening and closing of a
-connection. This is convenient especially in interactive use, but can
-also provide some kind of logging. See fingerd.sh for an example.
-
-
-WARNING
-
-Nothing prevents you from using Socket like this:
-
- % socket -slqp sh 5678
-
-THIS IS DANGEROUS! If your machine is connected to the Internet,
-*anyone* on the Internet can connect to this server and issue shell
-commands to your shell. These commands are executed with your user
-ID. Some people may think of this program as a BAD THING, because it
-allows its user to open his machine for world-wide access to all kinds
-of malicious crackers, crashers, etc. I don't know if I should
-consider this as a real security risk or not. Anyway, it is not my
-program which is so dangerous -- anyone with moderate programming
-skill can write a something like this.
-
-Another problem is that any server program that uses Socket may not be
-secure. I tried to avoid any holes -- especially that one that made
-fingerd vulnerable to the attack of Morris' Internet Worm, but I don't
-give any warranty. Also the program run by Socket may have security
-holes.
-
-I would like to hear your opinion about this topic. Do you consider it
-a security risk to have a program like Socket around?
-
-Comments
-
Please send any comments, suggestions, bug reports etc. to me:
Juergen Nickelsen <jn@berlin.snafu.de>
diff --git a/sysutils/socket/pkg-plist b/sysutils/socket/pkg-plist
index d7af25a6d64c..19c6bf922242 100644
--- a/sysutils/socket/pkg-plist
+++ b/sysutils/socket/pkg-plist
@@ -1 +1,3 @@
bin/socket
+share/doc/socket/README
+@dirrm share/doc/socket