treewide: replace local mkdir_p implementations

Replace local implementations of mkdir_p in favour of using the
more robust implementation now added to libubox.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

jail/cgroups.c

@@ -39,8 +39,8 @@
 #include <libubox/avl-cmp.h>
 #include <libubox/blobmsg.h>
 #include <libubox/list.h>
+#include <libubox/utils.h>
 
-#include "fs.h"
 #include "log.h"
 #include "cgroups.h"
 

jail/fs.c

@@ -32,6 +32,7 @@
 #include <libubox/avl-cmp.h>
 #include <libubox/blobmsg.h>
 #include <libubox/list.h>
+#include <libubox/utils.h>
 
 #include "elf.h"
 #include "fs.h"
@@ -54,31 +55,6 @@ struct mount {
 
 struct avl_tree mounts;
 
-int mkdir_p(char *dir, mode_t mask)
-{
-	char *l = strrchr(dir, '/');
-	int ret;
-
-	if (!l)
-		return 0;
-
-	*l = '\0';
-
-	if (mkdir_p(dir, mask))
-		return -1;
-
-	*l = '/';
-
-	ret = mkdir(dir, mask);
-	if (ret && errno == EEXIST)
-		return 0;
-
-	if (ret)
-		ERROR("mkdir(%s, %d) failed: %m\n", dir, mask);
-
-	return ret;
-}
-
 static int do_mount(const char *root, const char *orig_source, const char *target, const char *filesystemtype,
 		    unsigned long orig_mountflags, unsigned long propflags, const char *optstr, int error, bool inner)
 {

jail/fs.h

@@ -16,7 +16,6 @@
 #include <sys/mount.h>
 #include <libubox/blobmsg.h>
 
-int mkdir_p(char *dir, mode_t mask);
 int add_mount(const char *source, const char *target, const char *filesystemtype,
 	      unsigned long mountflags, unsigned long propflags, const char *optstr, int error);
 int add_mount_inner(const char *source, const char *target, const char *filesystemtype,

jail/jail.c

@@ -55,12 +55,12 @@
 #include "seccomp-oci.h"
 #include "cgroups.h"
 
-#include <libubox/utils.h>
 #include <libubox/blobmsg.h>
 #include <libubox/blobmsg_json.h>
 #include <libubox/list.h>
 #include <libubox/vlist.h>
 #include <libubox/uloop.h>
+#include <libubox/utils.h>
 #include <libubus.h>
 
 #ifndef CLONE_NEWCGROUP

plug/hotplug.c

@@ -23,6 +23,7 @@
 #include <libubox/blobmsg_json.h>
 #include <libubox/json_script.h>
 #include <libubox/uloop.h>
+#include <libubox/utils.h>
 #include <json-c/json.h>
 
 #include <errno.h>
@@ -108,18 +109,6 @@ static char *hotplug_msg_find_var(struct blob_attr *msg, const char *name)
 	return NULL;
 }
 
-static void mkdir_p(char *dir)
-{
-	char *l = strrchr(dir, '/');
-
-	if (l) {
-		*l = '\0';
-		mkdir_p(dir);
-		*l = '/';
-		mkdir(dir, 0755);
-	}
-}
-
 static void chgrp_error(const char *group, const char *target, const char *failed)
 {
 	ERROR("cannot set group %s for %s (%s: %d)\n",
@@ -163,7 +152,7 @@ static void handle_makedev(struct blob_attr *msg, struct blob_attr *data)
 		char *d = strdup(blobmsg_get_string(tb[0]));
 
 		d = dirname(d);
-		mkdir_p(d);
+		mkdir_p(d, 0755);
 		free(d);
 
 		if (!strcmp(subsystem, "block"))