23 lines
517 B
C
Executable file
23 lines
517 B
C
Executable file
/* Maps and unmaps a file and verifies that the mapped region is
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inaccessible afterward. */
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#include <syscall.h>
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#include "tests/vm/sample.inc"
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#include "tests/lib.h"
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#include "tests/main.h"
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#define ACTUAL ((void *) 0x10000000)
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void
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test_main (void)
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{
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int handle;
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mapid_t map;
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CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
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CHECK ((map = mmap (handle, ACTUAL)) != MAP_FAILED, "mmap \"sample.txt\"");
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munmap (map);
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fail ("unmapped memory is readable (%d)", *(int *) ACTUAL);
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}
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