diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/link.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/link.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/link.c b/REORG.TODO/sysdeps/mach/hurd/link.c new file mode 100644 index 0000000000..b9e00b2e1b --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/link.c @@ -0,0 +1,58 @@ +/* Copyright (C) 1991-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <stddef.h> +#include <unistd.h> +#include <hurd.h> + +/* Make a link to FROM called TO. */ +int +__link (const char *from, const char *to) +{ + error_t err; + file_t oldfile, linknode, todir; + char *toname; + + oldfile = __file_name_lookup (from, 0, 0); + if (oldfile == MACH_PORT_NULL) + return -1; + + /* The file_getlinknode RPC returns the port that should be passed to + the receiving filesystem (the one containing TODIR) in dir_link. */ + + err = __file_getlinknode (oldfile, &linknode); + __mach_port_deallocate (__mach_task_self (), oldfile); + if (err) + return __hurd_fail (err); + + todir = __file_name_split (to, &toname); + if (todir != MACH_PORT_NULL) + { + err = __dir_link (todir, linknode, toname, 1); + __mach_port_deallocate (__mach_task_self (), todir); + } + __mach_port_deallocate (__mach_task_self (), linknode); + if (todir == MACH_PORT_NULL) + return -1; + + if (err) + return __hurd_fail (err); + return 0; +} + +weak_alias (__link, link) |