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