Contents
What is socat tool?
The socat utility is a relay for bidirectional data transfers between two independent data channels. There are many different types of channels socat can connect, including: Files. Pipes. Devices (serial line, pseudo-terminal, etc)
What is fork system call what will happen to the child process if parent process get terminated?
Zombie state: When a process is created in UNIX using fork() system call, the address space of the Parent process is replicated. If the parent process calls wait() system call, then the execution of parent is suspended until the child is terminated. When parent collects the status, this entry is deleted.
Does exit kill child processes?
The child process is spawned in the background. The shell waits for a newline (or an EOF) then kills the child. When the parent dies–no matter what the reason–it will close its end of the pipe. The child shell will get an EOF from the read and proceed to kill the backgrounded child process.
How do I uninstall Socat?
For uninstalling this package you can easily use the apt command and remove the package from Linux Operating System. This will remove socat and all its dependent packages which is no longer needed in the system. Above command will remove all the configuration files and data associated with socat package.
When does SOCAT exit on Fatals what happens?
Even with this option, socat will exit on fatals, and will abort connection attempts when security checks failed. When one channel has reached EOF, the write part of the other channel is shut down.
What does SOCAT do if socket does not exist?
In case of a UNIX domain socket, socat connects; if connecting fails, socat assumes a datagram socket and uses CWsendto () calls. If the entry is not a socket, socat opens it applying the CWO_APPEND flag. If it does not exist, it is opened with flag CWO_CREAT as a regular file (example).
Why is SOCAT used for many different purposes?
Because the streams can be constructed from a large set of different types of data sinks and sources (see address types), and because lots of address options may be applied to the streams, socat can be used for many different purposes. Filan is a utility that prints information about its active file descriptors to stdout.
What happens if LockFile does not exist in SOCAT?
If lockfile exists, exits with error. If lockfile does not exist, creates it and continues, unlinks lockfile on exit. If lockfile exists, waits until it disappears. When lockfile does not exist, creates it and continues, unlinks lockfile on exit.