36 lines
671 B
C
36 lines
671 B
C
/*
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Child process output redirection Demo by Andrei Borovsky <borovsky@tochka.ru>.
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This code is freeware.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#define BUF_SIZE 0x100
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int main (int argc, char * argv[])
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{
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int pipedes[2];
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pid_t pid;
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pipe(pipedes);
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pid = fork();
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if ( pid > 0 )
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{
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char buf[BUF_SIZE];
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int len;
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close(pipedes[1]);
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while ((len = read(pipedes[0], buf, BUF_SIZE)) > 0)
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write(1, buf, len);
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close(pipedes[0]);
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}
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else
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{
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close(pipedes[0]);
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dup2(pipedes[1], 1);
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execve("/bin/netstat", NULL, NULL);
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}
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return 0;
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}
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