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