From 0b3366f6a93ac0f7e2028745ea557c0acd8722c6 Mon Sep 17 00:00:00 2001 From: "\"Steven J. Hill\"" Date: Sat, 7 May 2005 02:04:55 +0000 Subject: Import in NPTL code from glibc. For further information please consult the 'README.NPTL' file. --- libpthread/nptl/sem_unlink.c | 67 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 libpthread/nptl/sem_unlink.c (limited to 'libpthread/nptl/sem_unlink.c') diff --git a/libpthread/nptl/sem_unlink.c b/libpthread/nptl/sem_unlink.c new file mode 100644 index 000000000..17074774d --- /dev/null +++ b/libpthread/nptl/sem_unlink.c @@ -0,0 +1,67 @@ +/* Copyright (C) 2002, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2002. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include +#include +#include +#include "semaphoreP.h" + + +int +sem_unlink (name) + const char *name; +{ + char *fname; + size_t namelen; + + /* Determine where the shmfs is mounted. */ + INTUSE(__pthread_once) (&__namedsem_once, __where_is_shmfs); + + /* If we don't know the mount points there is nothing we can do. Ever. */ + if (mountpoint.dir == NULL) + { + __set_errno (ENOSYS); + return -1; + } + + /* Construct the filename. */ + while (name[0] == '/') + ++name; + + if (name[0] == '\0') + { + /* The name "/" is not supported. */ + __set_errno (ENOENT); + return -1; + } + namelen = strlen (name); + + /* Create the name of the file. */ + fname = (char *) alloca (mountpoint.dirlen + namelen + 1); + __mempcpy (__mempcpy (fname, mountpoint.dir, mountpoint.dirlen), + name, namelen + 1); + + /* Now try removing it. */ + int ret = unlink (fname); + if (ret < 0 && errno == EPERM) + __set_errno (EACCES); + return ret; +} -- cgit v1.2.3