Re: [PATCH 3/10] xattr syscalls

[Isaac Dunham <idunham@lavabit.com>]

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On Sun, 22 Jul 2012 18:13:32 -0700
Isaac Dunham <idunham@lavabit.com> wrote:

> This patch series is basically a reworked version of orc's previous
> patch.
> From what orc said, the first patch should provide enough to build
> Xorg; I haven't tested this yet.
> A few more patches are syscall wrappers (splice) or trivial
> functions (finite).

Here's support for the xattr syscalls. orc probably knows better than I
what these are needed for...

Isaac Dunham

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diff --git a/include/sys/xattr.h b/include/sys/xattr.h
new file mode 100644
index 0000000..0599cb3
--- /dev/null
+++ b/include/sys/xattr.h
@@ -0,0 +1,11 @@
+#define XATTR_CREATE 1
+#define XATTR_REPLACE 2
+ssize_t getxattr(const char *path, const char *name, void *value, size_t size)
+ssize_t lgetxattr(const char *path, const char *name, void *value, size_t size)
+ssize_t fgetxattr(int filedes, const char *name, void *value, size_t size)
+ssize_t listxattr(const char *path, char *list, size_t size)
+ssize_t llistxattr(const char *path, char *list, size_t size)
+ssize_t flistxattr(int filedes, char *list, size_t size)
+int setxattr(const char *path, const char *name, const void *value, size_t size, int flags)
+int lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags)
+int fsetxattr(int filedes, const char *name, const void *value, size_t size, int flags)
diff --git a/src/linux/xattr.c b/src/linux/xattr.c
new file mode 100644
index 0000000..75b5015
--- /dev/null
+++ b/src/linux/xattr.c
@@ -0,0 +1,48 @@
+#include <sys/types.h>
+#include <sys/xattr.h>
+#include "syscall.h"
+
+ssize_t getxattr(const char *path, const char *name, void *value, size_t size)
+{
+	return syscall(SYS_getxattr, path, name, value, size);
+}
+
+ssize_t lgetxattr(const char *path, const char *name, void *value, size_t size)
+{
+	return syscall(SYS_lgetxattr, path, name, value, size);
+}
+
+ssize_t fgetxattr(int filedes, const char *name, void *value, size_t size)
+{
+	return syscall(SYS_fgetxattr, filedes, name, value, size);
+}
+
+ssize_t listxattr(const char *path, char *list, size_t size)
+{
+	return syscall(SYS_listxattr, path, list, size);
+}
+
+ssize_t llistxattr(const char *path, char *list, size_t size)
+{
+	return syscall(SYS_llistxattr, path, list, size);
+}
+
+ssize_t flistxattr(int filedes, char *list, size_t size)
+{
+	return syscall(SYS_flistxattr, filedes, list, size);
+}
+
+int setxattr(const char *path, const char *name, const void *value, size_t size, int flags)
+{
+	return syscall(SYS_setxattr, path, name, value, size, flags);
+}
+
+int lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags)
+{
+	return syscall(SYS_lsetxattr, path, name, value, size, flags);
+}
+
+int fsetxattr(int filedes, const char *name, const void *value, size_t size, int flags)
+{
+	return syscall(SYS_fsetxattr, filedes, name, value, size, flags);
+}