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/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* 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 Intel Corporation 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 "spdk/stdinc.h"
#include "spdk/fd.h"
#ifdef __linux__
#include <linux/fs.h>
#endif
static uint64_t
dev_get_size(int fd)
{
#if defined(DIOCGMEDIASIZE) /* FreeBSD */
off_t size;
if (ioctl(fd, DIOCGMEDIASIZE, &size) == 0) {
return size;
}
#elif defined(__linux__) && defined(BLKGETSIZE64)
uint64_t size;
if (ioctl(fd, BLKGETSIZE64, &size) == 0) {
return size;
}
#endif
return 0;
}
uint32_t
spdk_fd_get_blocklen(int fd)
{
#if defined(DKIOCGETBLOCKSIZE) /* FreeBSD */
uint32_t blocklen;
if (ioctl(fd, DKIOCGETBLOCKSIZE, &blocklen) == 0) {
return blocklen;
}
#elif defined(__linux__) && defined(BLKSSZGET)
uint32_t blocklen;
if (ioctl(fd, BLKSSZGET, &blocklen) == 0) {
return blocklen;
}
#endif
return 0;
}
uint64_t
spdk_fd_get_size(int fd)
{
struct stat st;
if (fstat(fd, &st) != 0) {
return 0;
}
if (S_ISLNK(st.st_mode)) {
return 0;
}
if (S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode)) {
return dev_get_size(fd);
} else if (S_ISREG(st.st_mode)) {
return st.st_size;
}
/* Not REG, CHR or BLK */
return 0;
}
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