Index: tpm2-tools-5.0/tools/tpm2_getekcertificate.c
===================================================================
--- tpm2-tools-5.0.orig/tools/tpm2_getekcertificate.c
+++ tpm2-tools-5.0/tools/tpm2_getekcertificate.c
@@ -190,8 +190,8 @@ static char *base64_encode(const unsigne
     return final_string;
 }
 
-static size_t writecallback(void *contents, size_t size, size_t nitems,
-    char *CERT_BUFFER) {
+static size_t writecallback(char *contents, size_t size, size_t nitems,
+    void *CERT_BUFFER) {
 
     strncpy(CERT_BUFFER, (const char *)contents, nitems * size);
     ctx.rsa_cert_buffer_size = nitems * size;
Index: tpm2-tools-5.0/lib/tpm2_util.c
===================================================================
--- tpm2-tools-5.0.orig/lib/tpm2_util.c
+++ tpm2-tools-5.0/lib/tpm2_util.c
@@ -49,7 +49,7 @@ bool tpm2_util_concat_buffer(TPM2B_MAX_B
         return false;
     }
 
-    if ((result->size + append->size) > TPM2_MAX_DIGEST_BUFFER) {
+    if (((size_t)result->size + append->size) > TPM2_MAX_DIGEST_BUFFER) {
         return false;
     }