#include #include #include #include #include #include #include "Integrated.h" #include "Pish.h" // Main function for Pish program void Pish(void) { CommandStruct commandObject = {"", 0}; CommandStruct* command = &commandObject; char inputString[1000]; // Max 1000 characters int forkPID; ReadPishrc(command, inputString); while (1) { ResetCommandStruct(command); // Clean command strcpy(inputString, ""); // Clean inputString GetInput(inputString); // ParseInput(inputString, command); CheckRedirection(inputString, command); ioRedirection(command); if (IntegratedCheck(command)) continue; forkPID = fork(); // Child if (forkPID == 0) { // This is the child process // Setup the child's process environment here // E.g., where is standard I/O, how to handle signals? // execve() is recommended, execvpe() may be better execvp(command->argv[0], command->argv); // exec does not return if it succeeds printf("ERROR: Could not execute %s\n", inputString); exit(1); } // Parent // This is the parent process; Wait for the child to finish wait(&forkPID); } }