Fix wolfTPM2_NVReadCert on success case.

dgarske · dgarske · commit f1ebd4320af2 · 2024-03-26T10:06:44.000-07:00
diff --git a/src/tpm2_wrap.c b/src/tpm2_wrap.c
@@ -4435,13 +4435,14 @@ int wolfTPM2_NVReadCert(WOLFTPM2_DEV* dev, TPM_HANDLE handle,
     rc = wolfTPM2_NVReadPublic(dev, handle, &nvPublic);
     if (rc == 0) {
         if (buffer == NULL) {
-            /* just return size */
+            /* just set size and return success */
             *len = nvPublic.dataSize;
             return 0;
         }
         if (nvPublic.dataSize > *len) {
             return BUFFER_E;
         }
+        *len = nvPublic.dataSize;
     }
     else {
     #ifdef DEBUG_WOLFTPM

Original file line number	Diff line number	Diff line change
`@@ -4435,13 +4435,14 @@ int wolfTPM2_NVReadCert(WOLFTPM2_DEV* dev, TPM_HANDLE handle,`
`4435`	`4435`	`rc = wolfTPM2_NVReadPublic(dev, handle, &nvPublic);`
`4436`	`4436`	`if (rc == 0) {`
`4437`	`4437`	`if (buffer == NULL) {`
`4438`		`- /* just return size */`
	`4438`	`+ /* just set size and return success */`
`4439`	`4439`	`*len = nvPublic.dataSize;`
`4440`	`4440`	`return 0;`
`4441`	`4441`	`}`
`4442`	`4442`	`if (nvPublic.dataSize > *len) {`
`4443`	`4443`	`return BUFFER_E;`
`4444`	`4444`	`}`
	`4445`	`+ *len = nvPublic.dataSize;`
`4445`	`4446`	`}`
`4446`	`4447`	`else {`
`4447`	`4448`	`#ifdef DEBUG_WOLFTPM`