Implement some of the missing LFS64 support.

This gives us:

* <dirent.h>
  struct dirent64
  readdir64, readdir64_r, alphasort64, scandir64

* <fcntl.h>
  creat64, openat64, open64.

* <sys/stat.h>
  struct stat64
  fstat64, fstatat64, lstat64, stat64.

* <sys/statvfs.h>
  struct statvfs64
  statvfs64, fstatvfs64.

* <sys/vfs.h>
  struct statfs64
  statfs64, fstatfs64.

This also removes some of the incorrect #define hacks we've had in the
past (for stat64, for example, which we promised to clean up way back
in bug 8472078).

Bug: 11865851
Bug: 8472078
Change-Id: Ia46443521918519f2dfa64d4621027dfd13ac566

1 files changed, 106 insertions, 107 deletions

diff --git a/libc/include/sys/stat.h b/libc/include/sys/stat.h
index 37b8dc2c8..10bd01f4b 100644
--- a/libc/include/sys/stat.h
+++ b/libc/include/sys/stat.h
@@ -38,101 +38,101 @@
 __BEGIN_DECLS
 
 #if defined(__aarch64__)
-struct stat {
-  unsigned long st_dev;
-  unsigned long st_ino;
-  unsigned int st_mode;
-  unsigned int st_nlink;
-  unsigned int st_uid;
-  unsigned int st_gid;
-  unsigned long st_rdev;
-  unsigned long __pad1;
-  long st_size;
-  int st_blksize;
-  int __pad2;
-  long st_blocks;
-  long st_atime;
-  unsigned long st_atime_nsec;
-  long st_mtime;
-  unsigned long st_mtime_nsec;
-  long st_ctime;
-  unsigned long st_ctime_nsec;
-  unsigned int __unused4;
-  unsigned int __unused5;
-};
+#define __STAT64_BODY \
+  unsigned long st_dev; \
+  unsigned long st_ino; \
+  unsigned int st_mode; \
+  unsigned int st_nlink; \
+  unsigned int st_uid; \
+  unsigned int st_gid; \
+  unsigned long st_rdev; \
+  unsigned long __pad1; \
+  long st_size; \
+  int st_blksize; \
+  int __pad2; \
+  long st_blocks; \
+  long st_atime; \
+  unsigned long st_atime_nsec; \
+  long st_mtime; \
+  unsigned long st_mtime_nsec; \
+  long st_ctime; \
+  unsigned long st_ctime_nsec; \
+  unsigned int __unused4; \
+  unsigned int __unused5; \
+
 #elif defined(__mips__)
-struct stat {
-  unsigned int st_dev;
-  unsigned int __pad0[3];
-  unsigned long long st_ino;
-  unsigned int st_mode;
-  unsigned int st_nlink;
-  unsigned int st_uid;
-  unsigned int st_gid;
-  unsigned int st_rdev;
-  unsigned int __pad1[3];
-  long long st_size;
-  unsigned int st_atime;
-  unsigned int st_atime_nsec;
-  unsigned int st_mtime;
-  unsigned int st_mtime_nsec;
-  unsigned int st_ctime;
-  unsigned int st_ctime_nsec;
-  unsigned int st_blksize;
-  unsigned int __pad2;
-  unsigned long long st_blocks;
-};
+#define __STAT64_BODY \
+  unsigned int st_dev; \
+  unsigned int __pad0[3]; \
+  unsigned long long st_ino; \
+  unsigned int st_mode; \
+  unsigned int st_nlink; \
+  unsigned int st_uid; \
+  unsigned int st_gid; \
+  unsigned int st_rdev; \
+  unsigned int __pad1[3]; \
+  long long st_size; \
+  unsigned int st_atime; \
+  unsigned int st_atime_nsec; \
+  unsigned int st_mtime; \
+  unsigned int st_mtime_nsec; \
+  unsigned int st_ctime; \
+  unsigned int st_ctime_nsec; \
+  unsigned int st_blksize; \
+  unsigned int __pad2; \
+  unsigned long long st_blocks; \
+
 #elif defined(__x86_64__)
-struct stat {
-  unsigned long st_dev;
-  unsigned long st_ino;
-  unsigned long st_nlink;
-  unsigned int st_mode;
-  unsigned int st_uid;
-  unsigned int st_gid;
-  unsigned int __pad0;
-  unsigned long st_rdev;
-  long st_size;
-  long st_blksize;
-  long st_blocks;
-  unsigned long st_atime;
-  unsigned long st_atime_nsec;
-  unsigned long st_mtime;
-  unsigned long st_mtime_nsec;
-  unsigned long st_ctime;
-  unsigned long st_ctime_nsec;
-  long __pad3[3];
-};
+#define __STAT64_BODY \
+  unsigned long st_dev; \
+  unsigned long st_ino; \
+  unsigned long st_nlink; \
+  unsigned int st_mode; \
+  unsigned int st_uid; \
+  unsigned int st_gid; \
+  unsigned int __pad0; \
+  unsigned long st_rdev; \
+  long st_size; \
+  long st_blksize; \
+  long st_blocks; \
+  unsigned long st_atime; \
+  unsigned long st_atime_nsec; \
+  unsigned long st_mtime; \
+  unsigned long st_mtime_nsec; \
+  unsigned long st_ctime; \
+  unsigned long st_ctime_nsec; \
+  long __pad3[3]; \
+
 #else
-struct stat {
-  unsigned long long st_dev;
-  unsigned char __pad0[4];
-  unsigned long __st_ino;
-  unsigned int st_mode;
-  unsigned int st_nlink;
-  unsigned long st_uid;
-  unsigned long st_gid;
-  unsigned long long st_rdev;
-  unsigned char __pad3[4];
-  long long st_size;
-  unsigned long st_blksize;
-  unsigned long long st_blocks;
-  unsigned long st_atime;
-  unsigned long st_atime_nsec;
-  unsigned long st_mtime;
-  unsigned long st_mtime_nsec;
-  unsigned long st_ctime;
-  unsigned long st_ctime_nsec;
-  unsigned long long st_ino;
-};
+#define __STAT64_BODY \
+  unsigned long long st_dev; \
+  unsigned char __pad0[4]; \
+  unsigned long __st_ino; \
+  unsigned int st_mode; \
+  unsigned int st_nlink; \
+  unsigned long st_uid; \
+  unsigned long st_gid; \
+  unsigned long long st_rdev; \
+  unsigned char __pad3[4]; \
+  long long st_size; \
+  unsigned long st_blksize; \
+  unsigned long long st_blocks; \
+  unsigned long st_atime; \
+  unsigned long st_atime_nsec; \
+  unsigned long st_mtime; \
+  unsigned long st_mtime_nsec; \
+  unsigned long st_ctime; \
+  unsigned long st_ctime_nsec; \
+  unsigned long long st_ino; \
+
 #endif
 
-/* For compatibility with GLibc, we provide macro aliases
- * for the non-Posix nano-seconds accessors.
- */
-#define  st_atimensec  st_atime_nsec
-#define  st_mtimensec  st_mtime_nsec
-#define  st_ctimensec  st_ctime_nsec
+struct stat { __STAT64_BODY };
+struct stat64 { __STAT64_BODY };
+
+#define st_atimensec st_atime_nsec
+#define st_mtimensec st_mtime_nsec
+#define st_ctimensec st_ctime_nsec
 
 #ifdef __USE_BSD
 /* Permission macros provided by glibc for compatibility with BSDs. */
@@ -141,21 +141,26 @@ struct stat {
 #define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) /* 0666 */
 #endif
 
-extern int    chmod(const char *, mode_t);
-extern int    fchmod(int, mode_t);
-extern int    mkdir(const char *, mode_t);
+extern int chmod(const char*, mode_t);
+extern int fchmod(int, mode_t);
+extern int mkdir(const char*, mode_t);
 
-extern int    stat(const char *, struct stat *);
-extern int    fstat(int, struct stat *);
-extern int    lstat(const char *, struct stat *);
-extern int    mknod(const char *, mode_t, dev_t);
+extern int fstat(int, struct stat*);
+extern int fstat64(int, struct stat64*);
+extern int fstatat(int, const char*, struct stat*, int);
+extern int fstatat64(int, const char*, struct stat64*, int);
+extern int lstat(const char*, struct stat*);
+extern int lstat64(const char*, struct stat64*);
+extern int stat(const char*, struct stat*);
+extern int stat64(const char*, struct stat64*);
+
+extern int mknod(const char*, mode_t, dev_t);
 extern mode_t umask(mode_t);
 
 #if defined(__BIONIC_FORTIFY)
 
 extern mode_t __umask_chk(mode_t);
-extern mode_t __umask_real(mode_t)
-    __asm__(__USER_LABEL_PREFIX__ "umask");
+extern mode_t __umask_real(mode_t) __asm__(__USER_LABEL_PREFIX__ "umask");
 __errordecl(__umask_invalid_mode, "umask called with invalid mode");
 
 __BIONIC_FORTIFY_INLINE
@@ -172,20 +177,14 @@ mode_t umask(mode_t mode) {
 }
 #endif /* defined(__BIONIC_FORTIFY) */
 
-
-#define  stat64    stat
-#define  fstat64   fstat
-#define  lstat64   lstat
-
 extern int mkfifo(const char*, mode_t);
 
 extern int fchmodat(int, const char*, mode_t, int);
-extern int fstatat(int, const char*, struct stat*, int);
 extern int mkdirat(int, const char*, mode_t);
 extern int mknodat(int, const char*, mode_t, dev_t);
 
-# define UTIME_NOW      ((1l << 30) - 1l)
-# define UTIME_OMIT     ((1l << 30) - 2l)
+#define UTIME_NOW  ((1L << 30) - 1L)
+#define UTIME_OMIT ((1L << 30) - 2L)
 extern int utimensat(int fd, const char *path, const struct timespec times[2], int flags);
 extern int futimens(int fd, const struct timespec times[2]);