From c4fa48421916ff0777e9cf1bbb3b83634392a494 Mon Sep 17 00:00:00 2001
From: "Schanzenbach, Martin" <mschanzenbach@posteo.de>
Date: Wed, 22 Apr 2020 17:10:22 +0200
Subject: add epochs CLI parameter

---
 doc/man/gnunet-revocation.1        |  3 +++
 src/revocation/gnunet-revocation.c | 21 ++++++++++++++++-----
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/doc/man/gnunet-revocation.1 b/doc/man/gnunet-revocation.1
index 0c447a94f..05d80178a 100644
--- a/doc/man/gnunet-revocation.1
+++ b/doc/man/gnunet-revocation.1
@@ -30,6 +30,7 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl t Ar KEY | Fl -test= Ns Ar KEY
+.Op Fl e Ar EPOCHS | Fl -epochs= Ns Ar EPOCHS
 .Op Fl R Ar NAME | Fl -revoke= Ns Ar NAME
 .Op Fl p | -perform
 .Op Fl f Ar NAME | Fl -filename= Ns Ar NAME
@@ -50,6 +51,8 @@ Depending on your CPU, the calculation can take days or weeks.
 .Bl -tag -width indent
 .It Fl t Ar KEY | Fl -test= Ns Ar KEY
 Check if the given KEY (ASCII-encoded public key required) has been revoked.
+.It Fl e Ar EPOCHS | Fl -epochs= Ns Ar EPOCHS
+Number of epochs for which the revocation should be valid (default: 1)
 .It Fl R Ar NAME | Fl -revoke= Ns Ar NAME
 Calculate or perform revocation for the ego with the given NAME.
 .It Fl p | -perform
diff --git a/src/revocation/gnunet-revocation.c b/src/revocation/gnunet-revocation.c
index de9560172..19fd5ab2c 100644
--- a/src/revocation/gnunet-revocation.c
+++ b/src/revocation/gnunet-revocation.c
@@ -58,6 +58,11 @@ static char *revoke_ego;
  */
 static char *test_ego;
 
+/**
+ * -e option.
+ */
+static unsigned int epochs = 1;
+
 /**
  * Handle for revocation query.
  */
@@ -333,7 +338,7 @@ ego_callback (void *cls, const struct GNUNET_IDENTITY_Ego *ego)
   }
   GNUNET_IDENTITY_ego_get_public_key (ego, &key);
   privkey = GNUNET_IDENTITY_ego_get_private_key (ego);
-  memset(&proof_of_work, 0, sizeof (proof_of_work));
+  memset (&proof_of_work, 0, sizeof (proof_of_work));
   if ((NULL != filename) && (GNUNET_YES == GNUNET_DISK_file_test (filename)) &&
       (sizeof(proof_of_work) ==
        GNUNET_DISK_fn_read (filename, &proof_of_work, sizeof(proof_of_work))))
@@ -363,9 +368,9 @@ ego_callback (void *cls, const struct GNUNET_IDENTITY_Ego *ego)
      */
     fprintf (stderr,
              "%s",
-             _("Continuing calculation where left off...\n"));
+             _ ("Continuing calculation where left off...\n"));
     ph = GNUNET_REVOCATION_pow_start (&proof_of_work,
-                                      1, /* Epochs */
+                                      epochs,
                                       matching_bits);
   }
   fprintf (stderr,
@@ -376,7 +381,7 @@ ego_callback (void *cls, const struct GNUNET_IDENTITY_Ego *ego)
     GNUNET_REVOCATION_pow_init (privkey,
                                 &proof_of_work);
     ph = GNUNET_REVOCATION_pow_start (&proof_of_work,
-                                      1, /* Epochs */
+                                      epochs, /* Epochs */
                                       matching_bits);
   }
   pow_task = GNUNET_SCHEDULER_add_now (&calculate_pow, ph);
@@ -475,7 +480,7 @@ run (void *cls,
     {
       struct GNUNET_REVOCATION_PowCalculationHandle *ph;
       ph = GNUNET_REVOCATION_pow_start (&proof_of_work,
-                                        1, /* Epochs */
+                                        epochs, /* Epochs */
                                         matching_bits);
 
       pow_task = GNUNET_SCHEDULER_add_now (&calculate_pow, ph);
@@ -528,6 +533,12 @@ main (int argc, char *const *argv)
                                  gettext_noop (
                                    "test if the public key KEY has been revoked"),
                                  &test_ego),
+    GNUNET_GETOPT_option_uint ('e',
+                               "epochs",
+                               "EPOCHS",
+                               gettext_noop (
+                                 "number of epochs to calculate for"),
+                               &epochs),
 
     GNUNET_GETOPT_OPTION_END
   };
-- 
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