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2dd8d5e1b8
musl does not support legacy 32-bit-off_t whatsoever. off_t is always 64 bit, and correct programs that use off_t and the standard functions will just work out of the box. (on glibc, they would require -D_FILE_OFFSET_BITS=64 to work.) however, some programs instead define _LARGEFILE64_SOURCE and use alternate versions of all the standard types and functions with "64" appended to their names. we do not want code to actually get linked against these functions (it's ugly and inconsistent), so macros are used instead of prototypes with weak aliases in the library itself. eventually the weak aliases may be added at the library level for the sake of using code that was originally built against glibc, but the macros will still be the desired solution in the headers.
106 lines
1.9 KiB
C
106 lines
1.9 KiB
C
#ifndef _FCNTL_H
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#define _FCNTL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define __NEED_off_t
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#define __NEED_pid_t
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#define __NEED_mode_t
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#include <bits/alltypes.h>
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#include <bits/fcntl.h>
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struct flock
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{
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short l_type;
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short l_whence;
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off_t l_start;
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off_t l_len;
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pid_t l_pid;
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};
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int creat(const char *, mode_t);
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int fcntl(int, int, ...);
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int open(const char *, int, ...);
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int openat(int, const char *, int, ...);
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int posix_fadvise(int, off_t, off_t, int);
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int posix_fallocate(int, off_t, off_t);
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#define O_ACCMODE 03
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#define O_RDONLY 00
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#define O_WRONLY 01
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#define O_RDWR 02
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#define F_DUPFD_CLOEXEC 1030
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#define F_RDLCK 0
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#define F_WRLCK 1
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#define F_UNLCK 2
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#define FD_CLOEXEC 1
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#define AT_FDCWD (-100)
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#define AT_SYMLINK_NOFOLLOW 0x100
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#define AT_REMOVEDIR 0x200
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#define AT_SYMLINK_FOLLOW 0x400
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#define AT_EACCESS 0x200
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#define POSIX_FADV_NORMAL 0
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#define POSIX_FADV_RANDOM 1
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#define POSIX_FADV_SEQUENTIAL 2
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#define POSIX_FADV_WILLNEED 3
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#define POSIX_FADV_DONTNEED 4
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#define POSIX_FADV_NOREUSE 5
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#undef SEEK_SET
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#undef SEEK_CUR
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#undef SEEK_END
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#define SEEK_SET 0
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#define SEEK_CUR 1
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#define SEEK_END 2
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#ifndef S_IRUSR
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#define S_ISUID 04000
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#define S_ISGID 02000
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#define S_ISVTX 01000
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#define S_IRUSR 0400
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#define S_IWUSR 0200
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#define S_IXUSR 0100
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#define S_IRWXU 0700
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#define S_IRGRP 0040
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#define S_IWGRP 0020
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#define S_IXGRP 0010
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#define S_IRWXG 0070
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#define S_IROTH 0004
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#define S_IWOTH 0002
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#define S_IXOTH 0001
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#define S_IRWXO 0007
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#endif
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#ifdef _GNU_SOURCE
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#define FAPPEND O_APPEND
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#define FFSYNC O_FSYNC
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#define FASYNC O_ASYNC
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#define FNONBLOCK O_NONBLOCK
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#define FNDELAY O_NDELAY
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#endif
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#ifdef _LARGEFILE64_SOURCE
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#define open64 open
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#define openat64 openat
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#define creat64 creat
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#define lockf64 lockf
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#define posix_fadvise64 posix_fadvise
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#define posix_fallocate64 posix_fallocate
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#define off64_t off_t
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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