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authorPetr Vorel <petr.vorel@gmail.com>2020-08-18 16:56:26 (GMT)
committerWaldemar Brodkorb <wbx@openadk.org>2020-08-19 11:48:46 (GMT)
commit8bc41f131b8d70c84c300f14cd64abd448126b43 (patch)
treeb4d9b893583b909469e23409ac42bceba1fd8399
parent8b1f6b2e08ed3c15484c2ca0c3f0a45125c559c1 (diff)
Add {name, open}_to_handle_at() implementation
copied from musl 1.2.1. Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
-rw-r--r--include/fcntl.h12
-rw-r--r--libc/sysdeps/linux/common/Makefile.in2
-rw-r--r--libc/sysdeps/linux/common/name_to_handle_at.c36
-rw-r--r--libc/sysdeps/linux/common/open_by_handle_at.c34
4 files changed, 84 insertions, 0 deletions
diff --git a/include/fcntl.h b/include/fcntl.h
index e8a781f..02d4b01 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -281,6 +281,18 @@ extern int fallocate64 (int __fd, int __mode, __off64_t __offset, __off64_t __le
# endif
#endif
+#if (defined __UCLIBC_LINUX_SPECIFIC__ && defined __USE_GNU)
+struct file_handle {
+ unsigned handle_bytes;
+ int handle_type;
+ unsigned char f_handle[];
+};
+
+int name_to_handle_at(int dirfd, const char *pathname,
+ struct file_handle *handle, int *mount_id, int flags);
+int open_by_handle_at(int mount_fd, struct file_handle *handle, int flags);
+#endif
+
__END_DECLS
#endif /* fcntl.h */
diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
index f114a5b..9562de5 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -32,6 +32,8 @@ CSRC-$(UCLIBC_LINUX_SPECIFIC) += \
iopl.c \
modify_ldt.c \
module.c \
+ name_to_handle_at.c \
+ open_by_handle_at.c \
personality.c \
pipe2.c \
ppoll.c \
diff --git a/libc/sysdeps/linux/common/name_to_handle_at.c b/libc/sysdeps/linux/common/name_to_handle_at.c
new file mode 100644
index 0000000..20c67cb
--- /dev/null
+++ b/libc/sysdeps/linux/common/name_to_handle_at.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2005-2020 Rich Felker, et al.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Imported from musl C library
+ */
+
+#include <sys/syscall.h>
+
+#ifdef __NR_open_by_handle_at
+#include <fcntl.h>
+int name_to_handle_at(int dirfd, const char *pathname,
+ struct file_handle *handle, int *mount_id, int flags)
+{
+ return INLINE_SYSCALL(name_to_handle_at, 5, dirfd, pathname, handle,
+ mount_id, flags);
+}
+#endif
diff --git a/libc/sysdeps/linux/common/open_by_handle_at.c b/libc/sysdeps/linux/common/open_by_handle_at.c
new file mode 100644
index 0000000..5e65648
--- /dev/null
+++ b/libc/sysdeps/linux/common/open_by_handle_at.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright © 2005-2020 Rich Felker, et al.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Imported from musl C library
+ */
+
+#include <sys/syscall.h>
+
+#ifdef __NR_open_by_handle_at
+#include <fcntl.h>
+int open_by_handle_at(int mount_fd, struct file_handle *handle, int flags)
+{
+ return INLINE_SYSCALL(open_by_handle_at, 3, mount_fd, handle, flags);
+}
+#endif