ratbagd: create path if not present before installing dbus policy dir

Signed-off-by: Filipe Laíns <lains@archlinux.org>

ratbagd/ratbagd.c

@@ -29,6 +29,7 @@
 
 #include <assert.h>
 #include <errno.h>
+#include <libgen.h>
 #include <libratbag.h>
 #include <libudev.h>
 #include <stdio.h>
@@ -547,6 +548,13 @@ static bool install_ratbagd_devel_dbus_policy(void)
 		log_error("Failed to source policy file: %m\n");
 		goto out;
 	}
+
+	if (mkdir_p(dirname(strdupa(DBUS_POLICY_DST)), 0755)) {
+		log_error("Failed to create destination path: %m\n");
+		goto out;
+	}
+
+
 	out = open(DBUS_POLICY_DST, O_CREAT|O_WRONLY, 0644);
 	if (out == -1) {
 		log_error("Failed to open destination: %m\n");

src/libratbag-util.c

@@ -37,6 +37,8 @@
 #include <stdlib.h>
 #include <iconv.h>
 #include <errno.h>
+#include <libgen.h>
+#include <sys/stat.h>
 
 #include "libratbag-util.h"
 #include "libratbag-private.h"
@@ -188,3 +190,18 @@ err:
 	iconv_close(converter);
 	return ret;
 }
+
+int mkdir_p(char *dir, mode_t mode)
+{
+    struct stat sb;
+
+    if (!dir)
+        return EINVAL;
+
+    if (!stat(dir, &sb))
+        return 0;
+
+    mkdir_p(dirname(strdupa(dir)), mode);
+
+    return mkdir(dir, mode);
+}

src/libratbag-util.h

@@ -62,6 +62,8 @@ int list_empty(const struct list *list);
 	     pos = tmp,							\
 	     tmp = container_of(pos->member.next, tmp, member))
 
+int mkdir_p(char *dir, mode_t mode);
+
 static inline char*
 strncpy_safe(char *dest, const char *src, size_t n)
 {