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/*
* Copyright 2014, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _VFS_PORTABLE_H
#define _VFS_PORTABLE_H
#include <stdlib.h>
#include <sys/vfs.h>
/* The kernel's __kernel_fsid_t has a 'val' member but glibc uses '__val'. */
typedef struct { int __val[2]; } __fsid_t_portable;
typedef __fsid_t_portable fsid_t_portable;
#define __STATFS64_BODY_PORTABLE \
uint64_t f_type; \
uint64_t f_bsize; \
uint64_t f_blocks; \
uint64_t f_bfree; \
uint64_t f_bavail; \
uint64_t f_files; \
uint64_t f_ffree; \
fsid_t_portable f_fsid; \
uint64_t f_namelen; \
uint64_t f_frsize; \
uint64_t f_flags; \
uint64_t f_spare[5]; \
struct statfs_portable { __STATFS64_BODY_PORTABLE };
struct statfs64_portable { __STATFS64_BODY_PORTABLE };
static inline
void statfs_ntop(struct statfs *n_statfs, struct statfs_portable *p_statfs) {
memset(p_statfs, 0, sizeof(struct statfs_portable));
p_statfs->f_type = n_statfs->f_type;
p_statfs->f_bsize = n_statfs->f_bsize;
p_statfs->f_blocks = n_statfs->f_blocks;
p_statfs->f_bfree = n_statfs->f_bfree;
p_statfs->f_bavail = n_statfs->f_bavail;
p_statfs->f_files = n_statfs->f_files;
p_statfs->f_ffree = n_statfs->f_ffree;
memcpy(&p_statfs->f_fsid, &n_statfs->f_fsid, sizeof(int)*2);
p_statfs->f_namelen = n_statfs->f_namelen;
p_statfs->f_frsize = n_statfs->f_frsize;
p_statfs->f_flags = n_statfs->f_flags;
#ifdef __mips__
memcpy(&p_statfs->f_spare, &n_statfs->f_spare, 4);
#else
memcpy(&p_statfs->f_spare, &n_statfs->f_spare, 5);
#endif
}
static inline
int WRAP(statfs)(const char* path, struct statfs_portable* stat) {
struct statfs native_stat;
int ret = REAL(statfs)(path, &native_stat);
statfs_ntop(&native_stat, stat);
return ret;
}
static inline
int WRAP(statfs64)(const char* path, struct statfs64_portable* stat) {
return WRAP(statfs)(path, (struct statfs_portable*)stat);
}
static inline
int WRAP(fstatfs)(int fd, struct statfs_portable* stat) {
struct statfs native_stat;
int ret = REAL(fstatfs)(fd, &native_stat);
statfs_ntop(&native_stat, stat);
return ret;
}
static inline
int WRAP(fstatfs64)(int fd, struct statfs64_portable* stat) {
return WRAP(fstatfs)(fd, (struct statfs_portable*)stat);
}
#endif
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