int Tcl_Access(path, mode)
int Tcl_Stat(path, statPtr)
- char *path (in)
Native name of the file to check the attributes of.
- int mode (in)
Mask consisting of one or more of R_OK, W_OK,
X_OK and F_OK. R_OK,
W_OK and X_OK request checking whether the file
exists and has read,
write and execute permissions, respectively. F_OK just requests
checking for the existence of the file.
- stat *statPtr (out)
The structure that contains the result.
There are two reasons for calling Tcl_Access() and
rather than calling system level functions access() and
directly. First, the Windows implementation of both functions fixes
some bugs in the system level calls. Second, both
and Tcl_Stat() (as well as
into a linked list of functions. This allows the possibility to reroute
file access to alternative media or access methods.
Tcl_Access() checks whether the process would be allowed to
write or test for existence of the file (or other file system object)
whose name is path. If path
is a symbolic link on UNIX,
then permissions of the file referred by this symbolic link are
On success (all requested permissions granted), zero is returned. On
error (at least one bit in mode asked for a permission that is denied,
or some other error occurred), -1 is returned.
Tcl_Stat() fills the stat structure statPtr
about the specified file. You do not need any access rights to the
file to get this information but you need search rights to all
directories named in the path leading to the file. The stat structure
includes info regarding device, inode (always 0 on Windows),
privilege mode, nlink (always 1 on Windows), user id (always 0 on
Windows), group id (always 0 on Windows), rdev (same as device on
Windows), size, last access time, last modification time, and creation
If path exists, Tcl_Stat() returns 0 and the
is filled with data. Otherwise, -1 is returned, and no stat info is
Windows 8.1. Windows Server 2012 R2. Windows 10. Windows Server 2016. Windows Server 2019. Windows 11. Windows Server 2022.
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