From 72a6efc4d59568868fc6bbe05d343f777fc1a159 Mon Sep 17 00:00:00 2001
From: mdw <mdw>
Date: Thu, 8 Apr 2004 16:27:49 +0000
Subject: [PATCH] Slightly better factoring.

---
 dsig.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/dsig.c b/dsig.c
index 6e624c6..5a60444 100644
--- a/dsig.c
+++ b/dsig.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: dsig.c,v 1.10 2004/04/08 01:36:15 mdw Exp $
+ * $Id: dsig.c,v 1.11 2004/04/08 16:27:49 mdw Exp $
  *
  * Verify signatures on distribuitions of files
  *
@@ -266,6 +266,15 @@ typedef struct dsa_sigctx {
   gdsa g;
 } dsa_sigctx;
 
+static void dsa_initcommon(dsa_sigctx *ds, const gchash *hc,
+			   const char *ktag)
+{
+  ds->g.r = &rand_global;
+  ds->g.h = hc;
+  ds->g.u = MP_NEW;
+  ds->s.h = 0;
+}
+
 static dsa_sigctx *dsa_doinit(key *k, const gprime_param *gp,
 			      mp *y, const gchash *hc)
 {
@@ -275,13 +284,10 @@ static dsa_sigctx *dsa_doinit(key *k, const gprime_param *gp,
   key_fulltag(k, &t);
   if ((ds->g.g = group_prime(gp)) == 0)
     die(EXIT_FAILURE, "bad prime group in key `%s'", t.buf);
-  ds->g.u = MP_NEW;
   ds->g.p = G_CREATE(ds->g.g);
   if (G_FROMINT(ds->g.g, ds->g.p, y))
     die(EXIT_FAILURE, "bad public key in key `%s'", t.buf);
-  ds->g.r = &rand_global;
-  ds->g.h = hc;
-  ds->s.h = 0;
+  dsa_initcommon(ds, hc, t.buf);
   dstr_destroy(&t);
   return (ds);
 }
@@ -298,13 +304,10 @@ static dsa_sigctx *ecdsa_doinit(key *k, const char *cstr,
   if ((e = ec_getinfo(&ei, cstr)) != 0)
     die(EXIT_FAILURE, "bad curve in key `%s': %s", t.buf, e);
   ds->g.g = group_ec(&ei);
-  ds->g.u = MP_NEW;
   ds->g.p = G_CREATE(ds->g.g);
   if (G_FROMEC(ds->g.g, ds->g.p, y))
     die(EXIT_FAILURE, "bad public key in key `%s'", t.buf);
-  ds->g.r = &rand_global;
-  ds->g.h = hc;
-  ds->s.h = 0;
+  dsa_initcommon(ds, hc, t.buf);
   dstr_destroy(&t);
   return (ds);
 }
-- 
2.11.0