X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/251b9eb4698f569864c35127ddb7c309b92ccecb..d12746bc15d83ab821be36975da0179672708bc1:/src/src/auths/heimdal_gssapi.c

diff --git a/src/src/auths/heimdal_gssapi.c b/src/src/auths/heimdal_gssapi.c
index 381898050..11a7d399d 100644
--- a/src/src/auths/heimdal_gssapi.c
+++ b/src/src/auths/heimdal_gssapi.c
@@ -534,31 +534,30 @@ exim_gssapi_error_defer(uschar *store_reset_point,
     const char *format, ...)
 {
   va_list ap;
-  uschar buffer[STRING_SPRINTF_BUFFER_SIZE];
   OM_uint32 maj_stat, min_stat;
   OM_uint32 msgcontext = 0;
   gss_buffer_desc status_string;
+  gstring * g;
 
-  va_start(ap, format);
-  if (!string_vformat(buffer, sizeof(buffer), format, ap))
-    log_write(0, LOG_MAIN|LOG_PANIC_DIE,
-        "exim_gssapi_error_defer expansion larger than %lu",
-        sizeof(buffer));
-  va_end(ap);
+  HDEBUG(D_auth)
+    {
+    va_start(ap, format);
+    g = string_vformat(NULL, TRUE, format, ap);
+    va_end(ap);
+    }
 
   auth_defer_msg = NULL;
 
   do {
     maj_stat = gss_display_status(&min_stat,
-        major, GSS_C_GSS_CODE, GSS_C_NO_OID,
-        &msgcontext, &status_string);
+        major, GSS_C_GSS_CODE, GSS_C_NO_OID, &msgcontext, &status_string);
 
-    if (auth_defer_msg == NULL) {
+    if (!auth_defer_msg)
       auth_defer_msg = string_copy(US status_string.value);
-    }
 
     HDEBUG(D_auth) debug_printf("heimdal %s: %.*s\n",
-        buffer, (int)status_string.length, CS status_string.value);
+        string_from_gstring(g), (int)status_string.length,
+	CS status_string.value);
     gss_release_buffer(&min_stat, &status_string);
 
   } while (msgcontext != 0);