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36 lines
574 B
C
36 lines
574 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <sys/wait.h>
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#include <unistd.h>
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int main(int argc, char** argv) {
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int pipes[2];
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pipe(pipes);
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int pid1 = fork();
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if (pid1 < 0) {
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printf("fork failed\n");
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return -1;
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}
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if (pid1 == 0) {
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close(pipes[0]);
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write(pipes[1], "hello world", 12);
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return 0;
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}
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char buffer[20];
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int bytes;
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close(pipes[1]);
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bytes = read(pipes[0], buffer, 12);
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buffer[bytes] = 0;
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printf("%s\n", buffer);
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waitpid(pid1, NULL, 0);
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return 0;
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}
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