util: Add len arg to mkdir_p()

3 files changed, 7 insertions, 6 deletions

diff --git a/libkmod/libkmod-util.c b/libkmod/libkmod-util.c
index 43d8b02..1cbc849 100644
--- a/libkmod/libkmod-util.c
+++ b/libkmod/libkmod-util.c
@@ -320,11 +320,12 @@ static inline int is_dir(const char *path)
 	return -errno;
 }
 
-int mkdir_p(const char *path, mode_t mode)
+int mkdir_p(const char *path, int len, mode_t mode)
 {
-	char *start = strdupa(path);
-	int len = strlen(path);
-	char *end = start + len;
+	char *start, *end;
+
+	start = strndupa(path, len);
+	end = start + len;
 
 	/*
 	 * scan backwards, replacing '/' with '\0' while the component doesn't
diff --git a/libkmod/libkmod-util.h b/libkmod/libkmod-util.h
index 83c975c..4c45416 100644
--- a/libkmod/libkmod-util.h
+++ b/libkmod/libkmod-util.h
@@ -20,7 +20,7 @@ int read_str_ulong(int fd, unsigned long *value, int base) _must_check_ __attrib
 char *strchr_replace(char *s, int c, char r);
 bool path_is_absolute(const char *p) _must_check_ __attribute__((nonnull(1)));
 char *path_make_absolute_cwd(const char *p) _must_check_ __attribute__((nonnull(1)));
-int mkdir_p(const char *path, mode_t mode);
+int mkdir_p(const char *path, int len, mode_t mode);
 int alias_normalize(const char *alias, char buf[PATH_MAX], size_t *len) _must_check_ __attribute__((nonnull(1,2)));
 char *modname_normalize(const char *modname, char buf[PATH_MAX], size_t *len) __attribute__((nonnull(1, 2)));
 char *path_to_modname(const char *path, char buf[PATH_MAX], size_t *len) __attribute__((nonnull(2)));
diff --git a/testsuite/init_module.c b/testsuite/init_module.c
index ebf1b94..42177e7 100644
--- a/testsuite/init_module.c
+++ b/testsuite/init_module.c
@@ -155,7 +155,7 @@ static int create_sysfs_files(const char *modname)
 	strcpy(buf + len, modname);
 	len += strlen(modname);
 
-	assert(mkdir_p(buf, 0755) >= 0);
+	assert(mkdir_p(buf, len, 0755) >= 0);
 
 	strcpy(buf + len, "/initstate");
 	return write_one_line_file(buf, "live\n", strlen("live\n"));