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/* Copyright (C) 2002-2021 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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <semaphore.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "semaphoreP.h"
#include <shm-directory.h>
#if !PTHREAD_IN_LIBC
/* The private name is not exported from libc. */
# define __unlink unlink
#endif
int
__sem_unlink (const char *name)
{
struct shmdir_name dirname;
if (__shm_get_name (&dirname, name, true) != 0)
{
__set_errno (ENOENT);
return -1;
}
/* Now try removing it. */
int ret = __unlink (dirname.name);
if (ret < 0 && errno == EPERM)
__set_errno (EACCES);
return ret;
}
#if PTHREAD_IN_LIBC
versioned_symbol (libc, __sem_unlink, sem_unlink, GLIBC_2_34);
# if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1_1, GLIBC_2_34)
compat_symbol (libpthread, __sem_unlink, sem_unlink, GLIBC_2_1_1);
# endif
#else /* !PTHREAD_IN_LIBC */
strong_alias (__sem_unlink, sem_unlink)
#endif
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