I want to implement ping request in C language.I am working on Windows platform.Can any one suggest how to implement it or if code is already available then from where i can find it?
You can use system() to run command line instructions. So something like
system("ping 127.0.0.1")
should work.
Highly useful and open source - fping.
fping is a ping(1) like program which uses the Internet Control Message Protocol (ICMP) echo request to determine if a host is up. fping is different from ping in that you can specify any number of hosts on the command line, or specify a file containing the lists of hosts to ping. Instead of trying one host until it timeouts or replies, fping will send out a ping packet and move on to the next host in a round-robin fashion. If a host replies, it is noted and removed from the list of hosts to check. If a host does not respond within a certain time limit and/or retry limit it will be considered unreachable.
Unlike ping, fping is meant to be used in scripts and its output is easy to parse.