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1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef __LIB_UTILS_COMPAT_H
18 #define __LIB_UTILS_COMPAT_H
19 
20 #include <unistd.h>
21 
22 /* Compatibility definitions for non-Linux (i.e., BSD-based) hosts. */
23 #ifndef HAVE_OFF64_T
24 #if _FILE_OFFSET_BITS < 64
25 #error "_FILE_OFFSET_BITS < 64; large files are not supported on this platform"
26 #endif /* _FILE_OFFSET_BITS < 64 */
27 
28 typedef off_t off64_t;
29 
lseek64(int fd,off64_t offset,int whence)30 static inline off64_t lseek64(int fd, off64_t offset, int whence) {
31     return lseek(fd, offset, whence);
32 }
33 
34 #ifdef HAVE_PREAD
pread64(int fd,void * buf,size_t nbytes,off64_t offset)35 static inline ssize_t pread64(int fd, void* buf, size_t nbytes, off64_t offset) {
36     return pread(fd, buf, nbytes, offset);
37 }
38 #endif
39 
40 #endif /* !HAVE_OFF64_T */
41 
42 #endif /* __LIB_UTILS_COMPAT_H */
43