NAME | SYNOPSIS | LIBRARY | API RESTRICTIONS | DESCRIPTION | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO
#include <sys/stat.h> #include <unistd.h>int chflags(const char * path, u_long flags);
Standard C Library (lic, -lc).
The function or functions documented here may not be used safely in all application contexts with all APIs provided in the ChorusOS 5.0 product.
See API(5FEA) for details.
The file whose name is given by path or referenced by the descriptor fd has its flags changed to flags .
The flags specified are formed by or'ing the following values:
Does not dump the file.
The file may not be changed.
The file may only be appended to.
The file may not be renamed or deleted.
The directory is opaque when viewed through a union stack.
The file may not be changed.
The file may only be appended to.
The file may not be renamed or deleted.
The UF_IMMUTABLE, UF_APPEND and UF_NOUNLINK flags may be set or unset by either the owner of a file or the super-user.
The SF_IMMUTABLE, SF_APPEND and SF_NOUNLINK flags may only be set or unset by the super-user. Attempts by someone other than the super-user to set the super-user only flags are silently ignored. These flags can be set at any time, but usually can only be unset when the system is in single-user mode.
On successful completion, a value of 0 is returned. Otherwise, -1 is returned and the global variable errno is set to indicate the error.
chflags() will fail if:
A component of the path prefix is not a directory.
A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.
The named file does not exist.
Search permission is denied for a component of the path prefix.
Too many symbolic links were encountered in translating the pathname.
The effective user ID does not match the owner of the file and the effective user ID is not the super-user.
The named file resides on a read-only file system.
Path points outside the process's allocated address space.
An I/O error occurred while reading from or writing to the file system.
The underlying file system does not support file flags.
fchflags() will fail if:
The descriptor is not valid.
Refers to a socket, not to a file.
The effective user ID does not match the owner of the file and the effective user ID is not the super-user.
The file resides on a read-only file system.
An I/O error occurred while reading from or writing to the file system.
The underlying file system does not support file flags.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
Interface Stability | Evolving |
MT-Level | Async-Signal-Safe |
NAME | SYNOPSIS | LIBRARY | API RESTRICTIONS | DESCRIPTION | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO