diff options
Diffstat (limited to 'rt')
| -rw-r--r-- | rt/shm_unlink.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/rt/shm_unlink.c b/rt/shm_unlink.c index 27c10d9dee..a5af5ac147 100644 --- a/rt/shm_unlink.c +++ b/rt/shm_unlink.c @@ -1,4 +1,5 @@ -/* Copyright (C) 2000-2021 Free Software Foundation, Inc. +/* shm_unlink -- remove a POSIX shared memory object. Generic POSIX version. + Copyright (C) 2001-2021 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 @@ -16,13 +17,23 @@ <https://www.gnu.org/licenses/>. */ #include <errno.h> -#include <sys/mman.h> +#include <shm-directory.h> +#include <string.h> +#include <unistd.h> /* Remove shared memory object. */ int shm_unlink (const char *name) { - __set_errno (ENOSYS); - return -1; + struct shmdir_name dirname; + if (__shm_get_name (&dirname, name, false) != 0) + { + __set_errno (ENOENT); + return -1; + } + + int result = unlink (dirname.name); + if (result < 0 && errno == EPERM) + __set_errno (EACCES); + return result; } -stub_warning (shm_unlink) |