[PATCH 2/2] tools/fit_check_sign: make key optional

[Daniel Golle]

Allow invoking fit_check_sig without the key parameter, allowing to
validate only checksums and hashes for unsigned images.

Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 tools/fit_check_sign.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/tools/fit_check_sign.c b/tools/fit_check_sign.c
index 3d1d33fdab1..bac299a70e5 100644
--- a/tools/fit_check_sign.c
+++ b/tools/fit_check_sign.c
@@ -45,7 +45,7 @@ int main(int argc, char **argv)
 	char *config_name = NULL;
 	char cmdname[256];
 	int ret;
-	void *key_blob;
+	void *key_blob = NULL;
 	int c;
 
 	strncpy(cmdname, *argv, sizeof(cmdname) - 1);
@@ -70,18 +70,15 @@ int main(int argc, char **argv)
 		fprintf(stderr, "%s: Missing fdt file\n", *argv);
 		usage(*argv);
 	}
-	if (!keyfile) {
-		fprintf(stderr, "%s: Missing key file\n", *argv);
-		usage(*argv);
-	}
 
 	ffd = mmap_fdt(cmdname, fdtfile, 0, &fit_blob, &fsbuf, false, true);
 	if (ffd < 0)
 		return EXIT_FAILURE;
-	kfd = mmap_fdt(cmdname, keyfile, 0, &key_blob, &ksbuf, false, true);
-	if (kfd < 0)
-		return EXIT_FAILURE;
-
+	if (keyfile) {
+		kfd = mmap_fdt(cmdname, keyfile, 0, &key_blob, &ksbuf, false, true);
+		if (kfd < 0)
+			return EXIT_FAILURE;
+	}
 	image_set_host_blob(key_blob);
 	ret = fit_check_sign(fit_blob, key_blob, config_name);
 	if (!ret) {
-- 
2.49.0