sys_futimesat [fs/open.c]
Changes the access and modification times of an file realtive to a directory desriptor. The function sys_utimes allows specification of time stamps with a resolution of 1 microsecond. Arguments
eax | 299
ebx | Directory descriptor.
ecx | Pointer to a null-terminated string specifying the pathname of the file. If the pathname is relative, then it is interpreted relative to the directory referred to by the file descriptor ebx (rather than relative to the current working directory of the calling process, as is done by sys_ utimes for a relative pathname). If the pathname is relative and ebx is the special value AT_FDCWD, then pathname is interpreted relative to the current working directory of the calling process. If the pathname is absolute, then ebx is ignored.
edx | Pointer to a timeval structure containing new access and modification times:
`struc timeval { tv_sec rd 1 tv_usec rd 1 }`
Where tv_sec refers to access time and tv_usec refers to modification time.
Return values If the system call succeeds the return value is 0. If the system call fails the return value is one of the following errno values:
`-EACCES` | `Search permission is denied for one of the directories in the path prefix of pathname. -or- ecx is NULL and the process does not have permission to change the time stamps.`
`-ENOENT` | `Pathanme pointed by ebx does not exist.`
`-EPERM` | `ecxis not NULL and the process does not have permission to change the time stamps.`
`-EROFS` | `Pathname pointed by ebx resides on a read-only file system.`
`-EBADF` | `ebx is not a valid file descriptor.`
`-ENOTDIR` | `Pathname is a relative path and ebx is a file descriptor referring to a file other than a directory.`
Remarks Linux does not allow changing the time stamps on an immutable file, or setting the time stamps to something other than the current time on an append-only file. Compatibility Available since 2.6.16.