40 lines
739 B
C
40 lines
739 B
C
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//
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// Written for Computer Networks and Systems lab classes
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// AUTHOR : Sergiusz Warga
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sys/wait.h>
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int child_task(int a, int b) {
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return a + b;
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}
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int main() {
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srandom(time(NULL));
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int a = random() % 11;
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int b = random() % 11 + 20;
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int sum = 0;
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pid_t pid;
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pid = fork();
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if (pid == -1) { // If something went wrong.
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perror("Fork: ");
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exit(EXIT_FAILURE);
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}
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if (pid == 0) { // If this is a child process.
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sum = child_task(a, b);
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exit(sum);
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}
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wait(&sum);
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while (!(WIFEXITED(sum)));
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printf("%d\n", WEXITSTATUS(sum));
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return 0;
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}
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