Guardian Native C Library Calls Reference Manual (G06.28+, H06.05+)

__ns_backup_fopen64(3) Guardian Native C Library Calls Ref
erence Manual
RETURN VALUES
Upon successful completion, a pointer to the FILE structure denoting the file is returned. Other-
wise, a null pointer is returned.
ERRORS
If any of these conditions occurs, the __ns_backup_fopen64()
function sets errno to the
corresponding value:
• [ENOIMEM], if insufficient memory is available.
• An fopen64( ) function errno value, if an error occurs on the file open.
• A Guardian file system error code, if a file system error occurs. (Error 12 indicates the
backup open cannot obtain the same file number assigned to the primary open.)
An error detected in the backup process is not automatically sent to the primary process. User
code must handle such processing.
RELATED INFORMATION
Functions: __ns_backup_fopen(3), __ns_fget_file_open_state(3), __ns_fget_file_state(3),
__ns_fopen64_special(3), __ns_fset_file_state(3), __ns_start_backup(3).
STANDARDS CONFORMANCE
The __ns_backup_fopen64( ) function is an HP extension to the XPG4 Version 2 specification.
5−10 Hewlett-Packard Company 527192-007