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/* Copyright 2019, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "test_skel.h"
int main(int argc, char *argv[]) {
int fd = 0, mode = 0;
loff_t offset = 0, len = 0;
// Bad file descriptor.
fd = -1;
assert(sys_fallocate(fd, mode, offset, len) == -1);
assert(errno == EBADF);
char filename[] = "tempfile.XXXXXX";
fd = mkstemp(filename);
assert(fd >= 0);
// Invalid len.
assert(sys_fallocate(fd, mode, offset, len) == -1);
assert(errno == EINVAL);
// Small offset and length succeeds.
len = 4096;
assert(sys_fallocate(fd, mode, offset, len) == 0);
// Large offset succeeds and isn't truncated.
offset = 1llu + UINT32_MAX;
assert(sys_fallocate(fd, mode , offset, len) == 0);
#if defined(__NR_fstat64)
struct kernel_stat64 st;
assert(sys_fstat64(fd, &st) == 0);
#else
struct kernel_stat st;
assert(sys_fstat(fd, &st) == 0);
#endif
assert(st.st_size == offset + len);
return 0;
}
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