GETFH(2) System Calls Manual GETFH(2)

getfh — get file handle

#include <sys/types.h>
#include <sys/mount.h>

int
getfh(const char *path, fhandle_t *fhp);

() returns a file handle for the specified file or directory in the file handle pointed to by fhp. This system call is restricted to the super-user and is used by an NFS server's nfsd(8) daemon to obtain file handles used in NFS MOUNT service replies.

Upon successful completion, a value of 0 is returned. Otherwise, -1 is returned and the global variable errno is set to indicate the error.

getfh() fails if one or more of the following are true:

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A component of the path prefix of path names an existing file that is neither a directory nor a symbolic link to a directory, or path contains at least one non-<slash> character and ends with one or more trailing <slash> characters and the last pathname component names an existing file that is neither a directory nor a symbolic link to a directory.
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The length of a component of path exceeds {NAME_MAX} characters, or the length of path exceeds {PATH_MAX} characters.
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The file referred to by path does not exist.
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The caller is not the super-user.
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Search permission is denied for a component of the path prefix of path.
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Too many symbolic links were encountered in translating path.
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Fhp points to an invalid address.
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An I/O error occurred while reading from or writing to the file system.

nfsd(8)

The getfh() function first appeared in 4.4BSD.

January 9, 2007 Mac OS X 12