Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

System Functions (a - d) access(2)
[EROFS] Write access is requested for a file on a read-only fileset.
[ETXTBSY] Write access is requested for a pure procedure (shared text) file that is being exe-
cuted.
RELATED INFORMATION
Commands: getacl(1), setacl(1).
Functions: acl(2), chmod(2), stat(2).
Miscellaneous topics: acl(5).
STANDARDS CONFORMANCE
The POSIX standards leave some features to the implementing vendor to define. The following
features are affected in the HP implementation:
• A process with appropriate privilege can override the file permissions of a file. For files
in unrestricted filesets, a process with the super ID has the appropriate privilege. How-
ever, for files in restricted-access filesets, such special access privileges are restricted
even for the super ID.
• The error [EINVAL] can be detected.
The following are HP extensions to the XPG4 Version 2 specification:
• The errno values [EFAULT], [EFSBAD], [EINTR], [EIO], [ENOROOT], [ENOTSUP],
[ENXIO], and [EOSSNOTRUNNING] can be returned.
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