forked from OSchip/llvm-project
29 lines
605 B
C
29 lines
605 B
C
#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdio.h>
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int
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main (int argc, char const **argv)
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{
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struct stat buf;
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int i, rv = 0; // Set breakpoint here.
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// Make sure stdin/stdout/stderr exist.
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for (i = 0; i <= 2; ++i) {
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if (fstat(i, &buf) != 0)
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return 1;
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}
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// Make sure no other file descriptors are open.
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for (i = 3; i <= 256; ++i) {
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if (fstat(i, &buf) == 0 || errno != EBADF) {
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fprintf(stderr, "File descriptor %d is open.\n", i);
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rv = 2;
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}
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}
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return rv;
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}
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