substitute format chars in RUN after rule matching

Apply substitutions before running a program, not while the rule
is parsed. It allows to use environment variables set during rule
processing as command arguments.

1 files changed, 7 insertions, 2 deletions

diff --git a/udev.c b/udev.c
index 4762ab1cef..f808abf427 100644
--- a/udev.c
+++ b/udev.c
@@ -161,8 +161,13 @@ int main(int argc, char *argv[], char *envp[])
 		list_for_each_entry(name_loop, &udev->run_list, node) {
 			if (strncmp(name_loop->name, "socket:", strlen("socket:")) == 0)
 				pass_env_to_socket(&name_loop->name[strlen("socket:")], devpath, action);
-			else
-				run_program(name_loop->name, udev->dev->subsystem, NULL, 0, NULL, (udev_log_priority >= LOG_INFO));
+			else {
+				char program[PATH_SIZE];
+
+				strlcpy(program, name_loop->name, sizeof(program));
+				apply_format(udev, program, sizeof(program));
+				run_program(program, udev->dev->subsystem, NULL, 0, NULL, (udev_log_priority >= LOG_INFO));
+			}
 		}
 	}