Untitled
Posted by Anonymous on Fri 14th Oct 2011 09:04
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view followups (newest first): UPDATED UPON10/14/09:04PM [BY:VIN] by Anonymous
modification of post by Anonymous (view diff)

/* CODE WILL TAKE A COMMAND, PASS IT TO CREATEPROCESS(),
 * FORK A CHILD AND EXECUTE COMMAND
 *
 *
 */

#include <unistd.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>

char* buffer;
pid_t pid;

void startProcess( char* );

int main ()
{
        char* input = (char*)malloc( 128 );
        buffer = NULL;

        while( 1 )
        {
                printf( "EECE315_Shell - %s$ ", getcwd(NULL, 0) );
                gets( input );
                if( strcmp(input, "exit") == 0 )
                {
                        printf( "Terminating shell...\n" );
                        return 0;
                }
                else if( strcmp(input, "") != 0 )
                {
                        startProcess( input );
                }
        }
}

void startProcess( char* input )
{
        pid = fork();

        if( pid == 0 )
        {
                execvp( input, NULL );
        }
        else if( pid > 0 )
        {
                //parent wait
        }
        else
        {
                printf( "Fork returned error code, no child" );
        }
}