utils: add lxc_iterate_parts()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/utils.h b/src/lxc/utils.h
index f09bc90181ad9989fd6c728d8573a568ac85059c..7d672b7779b12c9c410c929fefce47ea3796853b 100644 (file)
--- a/src/lxc/utils.h
+++ b/src/lxc/utils.h
@@ -620,4 +620,9 @@ extern int lxc_set_death_signal(int signal);
 extern int fd_cloexec(int fd, bool cloexec);
 extern int recursive_destroy(char *dirname);
 
+#define lxc_iterate_parts(__iterator, __splitme, __separators)                  \
+       for (char *__p = NULL, *__it = strtok_r(__splitme, __separators, &__p); \
+            (__iterator = __it);                                               \
+            __iterator = __it = strtok_r(NULL, __separators, &__p))
+
 #endif /* __LXC_UTILS_H */