program must take a port# as an argument from the CmdLine Socket prog

Asked Nov 20 '20 at 19:00

Active Nov 20 '20 at 19:00

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I am new to C Network programming and I need to update the program to take port# as argument from the command line but I keep getting a segmentation fault error. Not sure how to fix. any help will be appreciated.

Here is the Server program code where the port number is hard coded

serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
serv_addr.sin_port = htons(5000);

This is the Client program code

serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(5000);

How to do I change it to start receiving port # as input from cmdline

asked Nov 20 '20 at 19:00

SBHK

https://www.tutorialspoint.com/cprogramming/c_command_line_arguments.htm – Robert Harvey Nov 20 '20 at 19:01
Does this answer your question? [Parsing command-line arguments in C?](https://stackoverflow.com/questions/9642732/parsing-command-line-arguments-in-c) – Robert Harvey Nov 20 '20 at 19:03

program must take a port# as an argument from the CmdLine Socket prog

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