improved prompting

diff --git a/bin/dnssec/dnssectool.c b/bin/dnssec/dnssectool.c
index 22a15b9032f4d53e2e4a6ce7e2be4280c6a73520..a76be3fe7ba9f68621eec8055874f692efd6aa7a 100644 (file)
--- a/bin/dnssec/dnssectool.c
+++ b/bin/dnssec/dnssectool.c
@@ -174,12 +174,19 @@ setup_logging(int verbose, isc_mem_t *mctx, isc_log_t **logp) {
 static isc_result_t
 kbdstart(isc_entropysource_t *source, void *arg, isc_boolean_t blocking) {
        isc_keyboard_t *kbd = (isc_keyboard_t *)arg;
+       static isc_boolean_t first = ISC_TRUE;
 
        UNUSED(source);
 
        if (!blocking)
                return (ISC_R_NOENTROPY);
-       printf("start typing\n");
+       if (first) {
+               fprintf(stderr, "You must use the keyboard to create entropy, "
+                       "since your system is lacking\n");
+               fprintf(stderr, "/dev/random\n\n");
+               first = ISC_FALSE;
+       }
+       fprintf(stderr, "start typing:\n");
        return (isc_keyboard_open(kbd));
 }
 
@@ -189,7 +196,7 @@ kbdstop(isc_entropysource_t *source, void *arg) {
 
        UNUSED(source);
 
-       printf("stop typing\r\n");
+       fprintf(stderr, "stop typing.\r\n");
        (void)isc_keyboard_close(kbd, 3);
 }
 
@@ -218,12 +225,12 @@ kbdget(isc_entropysource_t *source, void *arg, isc_boolean_t blocking) {
 
        result = isc_entropy_addcallbacksample(source, sample, extra);
        if (result != ISC_R_SUCCESS) {
-               printf("\r\n");
+               fprintf(stderr, "\r\n");
                return (result);
        }
 
-       printf(".");
-       fflush(stdout);
+       fprintf(stderr, ".");
+       fflush(stderr);
 
        return (result);
 }