util/nvmutil: reset global state in one function

split it out of main. this is good hygiene and it's preparation
for a planned expansion in the future, that allows operation
on multiple files.

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 15 insertions, 9 deletions

diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c
index c1882af2..62821278 100644
--- a/util/nvmutil/nvmutil.c
+++ b/util/nvmutil/nvmutil.c
@@ -13,6 +13,7 @@
 #include <string.h>
 #include <unistd.h>
 
+static void reset_global_state(int, char **);
 static void set_cmd(int, char **);
 static void check_cmd_args(int, char **);
 static void set_io_flags(int, char **);
@@ -99,17 +100,9 @@ int
 main(int argc, char *argv[])
 {
 	argv0 = argv[0];
-
-	mac = NULL;
-	invert = 0;
-	part_modified[0] = 0;
-	part_modified[1] = 0;
-	fname = "";
-	cmd = NULL;
-
 	if (argc < 2)
 		usage();
-	fname = argv[1];
+	reset_global_state(argc, argv);
 #ifdef __OpenBSD__
 	err_if(pledge("stdio rpath wpath unveil", NULL) == -1);
 	err_if(unveil("/dev/urandom", "r") == -1);
@@ -146,6 +139,19 @@ main(int argc, char *argv[])
 }
 
 static void
+reset_global_state(int argc, char *argv[])
+{
+	mac = NULL;
+	invert = 0;
+	part_modified[0] = 0;
+	part_modified[1] = 0;
+	fname = "";
+	cmd = NULL;
+
+	fname = argv[1];
+}
+
+static void
 set_cmd(int argc, char *argv[])
 {
 	size_t i;