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New stat structure.

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* VFS and installed MFSes must be in sync before and after this change *

Use struct stat from NetBSD. It requires adding new STAT, FSTAT and LSTAT
syscalls. Libc modification is both backward and forward compatible.

Also new struct stat uses modern field sizes to avoid ABI
incompatibility, when we update uid_t, gid_t and company.
Exceptions are ino_t and off_t in old libc (though paddings added).
This commit is contained in:
Evgeniy Ivanov
2011-07-01 23:35:54 +04:00
committed by Ben Gras
parent 48331843ea
commit ef0a265086
34 changed files with 533 additions and 417 deletions
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15
include/minix/types.h
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@@ -99,17 +99,28 @@ typedef long key_t;
typedef long useconds_t; /* Time in microseconds */
typedef short dev_t; /* holds (major|minor) device pair */
typedef u32_t big_dev_t;
/* Types used in disk, inode, etc. data structures. */
/* Types used in disk, inode, etc. data structures.
* Some u64_t should be i64_t, but anyway with old libc we use .lo only.
*/
typedef char gid_t; /* group id */
typedef u32_t big_gid_t; /* group id */
typedef unsigned long ino_t; /* i-node number (V3 filesystem) */
typedef u64_t big_ino_t; /* i-node number (V3 filesystem) */
typedef unsigned short mode_t; /* file type and permissions bits */
typedef short nlink_t; /* number of links to a file */
typedef u32_t big_mode_t; /* file type and permissions bits */
typedef short nlink_t; /* number of links to a file */
typedef u32_t big_nlink_t;/* number of links to a file */
typedef long off_t; /* offset within a file */
typedef u64_t big_off_t; /* offset within a file */
typedef int pid_t; /* process id (must be signed) */
typedef short uid_t; /* user id */
typedef u32_t big_uid_t; /* user id */
typedef unsigned long fsblkcnt_t; /* File system block count */
typedef unsigned long fsfilcnt_t; /* File system file count */
typedef u32_t blkcnt_t; /* File system block count */
typedef unsigned long blksize_t; /* File system block size */
/* Signal handler type, e.g. SIG_IGN */
typedef void _PROTOTYPE( (*sighandler_t), (int) );