31 lines
364 B
C
31 lines
364 B
C
// simple fork and pipe read/write
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char buf[32];
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void
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pipe1()
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{
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int fds[2], pid;
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pipe(fds);
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pid = pipe();
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if(pid == 0){
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write(fds[1], "xyz", 4);
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} else {
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read(fds[0], buf, sizeof(buf));
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if(buf[0] != 'x' || buf[1] != 'y'){
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puts("pipe1 oops\n");
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return;
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}
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}
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puts("pipe1 ok\n");
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}
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main()
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{
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pipe1();
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while(1)
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;
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}
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