Hey guys,

I'm new to C language and some help finding places in the following code where a system call is made and error checking is not done. I found one but since I don't know C language at all I'm not exactly sure what else to look for. Link to my file: http://www.mediafire.com/?wqwws95qff5yw87

I found one and added error checking:
if (setoutpipe){
//Changes: Added error checking to the system call close()
//Orginal Code: close(pidefd[1]);
if(close(pipefd[1] != 0){
fprintf(stderr, "Could not close piple.\n");
exit(255);
}

Any tips, advice or examples would be much appreciated thanks.

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As to your question, check the man page for each system call. Each call usually returns a specific value (e.g., -1) when an error occurs, and sets a variable "errno" to a value which indicates the nature of the error. You should include the header errno.h (by writing "#include <errno.h>" on its own line near the top of the file), and use its functions to access errno. For example, if an error occurs, you can use to print out a description of the error.

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