Bug 1855952 - nss_secutil.c: Resource leak: input r=andi

Differential Revision: https://phabricator.services.mozilla.com/D190110

Author: anonymous0000007

modules/libmar/sign/nss_secutil.c

@@ -76,6 +76,11 @@ char* GetPasswordString(void* arg, char* prompt) {
 
   if (!QUIET_FGETS(phrase, sizeof(phrase), input)) {
     fprintf(stderr, "QUIET_FGETS failed\n");
+#ifndef _WINDOWS
+    if (isInputTerminal) {
+      fclose(input);
+    }
+#endif
     return NULL;
   }