From cdb7ee7e3365841bd944b897328cebe441083b9c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20H=C3=B6glund?= <jonas.hoglund@embeddednation.com>
Date: Tue, 6 Apr 2021 14:53:19 +0200
Subject: [PATCH] Check hash algo.
---
fdtextract.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/fdtextract.c b/fdtextract.c
index a810d4f..4308645 100644
--- a/fdtextract.c
+++ b/fdtextract.c
@@ -158,10 +158,17 @@ static int get_hash(char *buf, char *name)
return -1;
}
+ val = (uint8_t *)fdt_getprop(buf, noffset, "algo", NULL);
+ if (strcmp((const char *)val, "sha256")) {
+ printf("Error: unknown hash algorithm %s\n", val);
+ return -1;
+ }
+
val = (uint8_t *)fdt_getprop(buf, noffset, "value", NULL);
for (i=0; i<SHA_256_LEN; i++)
printf("%x", val[i]);
- printf("\n");
+
+ return 0;
}
int main(int argc, char *argv[])
--
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