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.Dd November 30, 2022 .Dt FHREADLINK 2 .Os .Sh NAME .Nm fhreadlink .Nd read value of a symbolic link .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/param.h n sys/mount.h .Ft int .Fn fhreadlink "fhandle_t *fhp" "char *buf" "size_t bufsize" .Fc .Sh DESCRIPTION The .Fn fhreadlink system call places the contents of the symbolic link .Fa fhp in the buffer .Fa buf , which has size .Fa bufsiz . The .Fn fhreadlink system call does not append a .Dv NUL character to .Fa buf .
p .Sh RETURN VALUES The call returns the count of characters placed in the buffer if it succeeds, or a -1 if an error occurs, placing the error code in the global variable .Va errno . .Sh ERRORS The .Fn readlink system call will fail if: l -tag -width Er t Bq Er ENOENT The named file does not exist. t Bq Er ELOOP Too many symbolic links were encountered in translating the file handle .Fa fhp . t Bq Er EINVAL The named file is not a symbolic link. t Bq Er EIO An I/O error occurred while reading from the file system. t Bq Er EINTEGRITY Corrupted data was detected while reading from the file system. t Bq Er EFAULT The .Fa buf argument extends outside the process's allocated address space. t Bq Er ESTALE The file handle .Fa fhp is no longer valid .El .El .Sh SEE ALSO .Xr fhstat 2 , .Xr fhlink 2 , .Sh HISTORY The .Fn fhreadlink system call first appeared in .Fx 12.1 .