Error return codes common to
truncate() and
ftruncate() are:
[EISDIR]
The named file is a directory.
[EROFS]
The named file resides on a read-only file system.
[ETXTBSY]
The file is a pure procedure (shared text) file that is being executed.
[EIO]
An I/O error occurred updating the inode.
[ENOSPC]
There was no space in the filesystem to complete the operation.
Error codes specific to
truncate() are:
[ENOTDIR]
A component of the path prefix is not a directory.
[ENAMETOOLONG]
A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters.
[ENOENT]
The named file does not exist.
[EACCES]
Search permission is denied for a component of the path prefix, or the named file is not writable by the user.
[ELOOP]
Too many symbolic links were encountered in translating the pathname.
[EFAULT]
path points outside the process's allocated address space.
Error codes specific to
ftruncate() are:
[EBADF]
The fd is not a valid descriptor.
[EINVAL]
The fd references a socket, not a file, or the fd is not open for writing.