1 files changed, 63 insertions, 0 deletions
diff --git a/tools/xenstore/xs_lib.h b/tools/xenstore/xs_lib.h
new file mode 100644
index 0000000000..a946ab0b19
--- /dev/null
+++ b/tools/xenstore/xs_lib.h
@@ -0,0 +1,63 @@
+#ifndef _XR_LIB_H
+#define _XR_LIB_H
+/* 
+    Common routines between Xen store user library and daemon.
+    Copyright (C) 2005 Rusty Russell IBM Corporation
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+#include <stdbool.h>
+#include <limits.h>
+#include <xc.h>
+
+/* Bitmask of permissions. */
+enum xs_perm_type {
+	XS_PERM_NONE = 0,
+	XS_PERM_READ = 1,
+	XS_PERM_WRITE = 2,
+	/* Internal use. */
+	XS_PERM_CREATE = 4,
+	XS_PERM_OWNER = 8,
+};
+
+struct xs_permissions
+{
+	domid_t id;
+	enum xs_perm_type perms;
+};
+
+/* Each 10 bits takes ~ 3 digits, plus one, plus one for nul terminator. */
+#define MAX_STRLEN(x) ((sizeof(x) * CHAR_BIT + CHAR_BIT-1) / 10 * 3 + 2)
+
+/* Path for various daemon things: env vars can override. */
+const char *xs_daemon_socket(void);
+const char *xs_daemon_socket_ro(void);
+const char *xs_daemon_store(void);
+const char *xs_daemon_transactions(void);
+
+/* Simple write function: loops for you. */
+bool write_all(int fd, const void *data, unsigned int len);
+
+/* Convert strings to permissions.  False if a problem. */
+bool strings_to_perms(struct xs_permissions *perms, unsigned int num,
+		      const char *strings);
+
+/* Convert permissions to a string (up to len MAX_STRLEN(domid_t)+1). */
+bool perm_to_string(const struct xs_permissions *perm, char *buffer);
+
+/* Given a string and a length, count how many strings (nul terms). */
+unsigned int count_strings(const char *strings, unsigned int len);
+
+#endif /* _XS_LIB_H */