From dc742246151fa5a0fa3f2150e130d5122008cfae Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 5 Jan 2024 14:21:53 +0100
Subject: add option -s to the CS secmod helper for DONAU to use a different
 path

---
 src/util/crypto_helper_cs.c         | 14 +++++++++++---
 src/util/taler-exchange-secmod-cs.c | 22 ++++++++++++++++++++--
 src/util/test_helper_cs.c           |  2 ++
 3 files changed, 33 insertions(+), 5 deletions(-)

(limited to 'src/util')

diff --git a/src/util/crypto_helper_cs.c b/src/util/crypto_helper_cs.c
index dae0b6fc6..ac41f52c6 100644
--- a/src/util/crypto_helper_cs.c
+++ b/src/util/crypto_helper_cs.c
@@ -113,21 +113,27 @@ try_connect (struct TALER_CRYPTO_CsDenominationHelper *dh)
 struct TALER_CRYPTO_CsDenominationHelper *
 TALER_CRYPTO_helper_cs_connect (
   const struct GNUNET_CONFIGURATION_Handle *cfg,
+  const char *section,
   TALER_CRYPTO_CsDenominationKeyStatusCallback dkc,
   void *dkc_cls)
 {
   struct TALER_CRYPTO_CsDenominationHelper *dh;
   char *unixpath;
+  char *secname;
 
+  GNUNET_asprintf (&secname,
+                   "%s-exchange-secmod-cs",
+                   section);
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_filename (cfg,
-                                               "taler-exchange-secmod-cs",
+                                               secname,
                                                "UNIXPATH",
                                                &unixpath))
   {
     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "taler-exchange-secmod-cs",
+                               secname,
                                "UNIXPATH");
+    GNUNET_free (secname);
     return NULL;
   }
   /* we use >= here because we want the sun_path to always
@@ -135,12 +141,14 @@ TALER_CRYPTO_helper_cs_connect (
   if (strlen (unixpath) >= sizeof (dh->sa.sun_path))
   {
     GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                               "taler-exchange-secmod-cs",
+                               secname,
                                "UNIXPATH",
                                "path too long");
     GNUNET_free (unixpath);
+    GNUNET_free (secname);
     return NULL;
   }
+  GNUNET_free (secname);
   dh = GNUNET_new (struct TALER_CRYPTO_CsDenominationHelper);
   dh->dkc = dkc;
   dh->dkc_cls = dkc_cls;
diff --git a/src/util/taler-exchange-secmod-cs.c b/src/util/taler-exchange-secmod-cs.c
index a9696ee84..89d1462f2 100644
--- a/src/util/taler-exchange-secmod-cs.c
+++ b/src/util/taler-exchange-secmod-cs.c
@@ -340,6 +340,13 @@ static struct GNUNET_TIME_Timestamp now_tmp;
  */
 static char *keydir;
 
+/**
+ * Name of the configuration section prefix to use.  Usually either "taler" or
+ * "donau". The actual configuration section will then be
+ * "$SECTION-exchange-secmod-cs".
+ */
+static const char *section = "taler";
+
 /**
  * How much should coin creation (@e duration_withdraw) duration overlap
  * with the next denomination?  Basically, the starting time of two
@@ -2157,6 +2164,7 @@ run (void *cls,
     .updater = &cs_update_client_keys,
     .init = &cs_client_init
   };
+  char *secname;
 
   (void) cls;
   (void) args;
@@ -2171,18 +2179,23 @@ run (void *cls,
     /* get current time again, we may be timetraveling! */
     now = GNUNET_TIME_timestamp_get ();
   }
+  GNUNET_asprintf (&secname,
+                   "%s-exchange-secmod-cs",
+                   section);
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_filename (cfg,
-                                               "taler-exchange-secmod-cs",
+                                               secname,
                                                "KEY_DIR",
                                                &keydir))
   {
     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "taler-exchange-secmod-cs",
+                               secname,
                                "KEY_DIR");
+    GNUNET_free (secname);
     global_ret = EXIT_NOTCONFIGURED;
     return;
   }
+  GNUNET_free (secname);
   if (GNUNET_OK !=
       load_durations (cfg))
   {
@@ -2264,6 +2277,11 @@ main (int argc,
       char **argv)
 {
   struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_option_string ('s',
+                                 "section",
+                                 "SECTION",
+                                 "name of the configuration section prefix to use, default is 'taler'",
+                                 &section),
     GNUNET_GETOPT_option_timetravel ('T',
                                      "timetravel"),
     GNUNET_GETOPT_option_timestamp ('t',
diff --git a/src/util/test_helper_cs.c b/src/util/test_helper_cs.c
index 2292cbfd1..07e9907b4 100644
--- a/src/util/test_helper_cs.c
+++ b/src/util/test_helper_cs.c
@@ -970,6 +970,7 @@ par_signing (struct GNUNET_CONFIGURATION_Handle *cfg)
       int ret;
 
       dh = TALER_CRYPTO_helper_cs_connect (cfg,
+                                           "taler",
                                            &key_cb,
                                            NULL);
       GNUNET_assert (NULL != dh);
@@ -1027,6 +1028,7 @@ run_test (void)
     nanosleep (&req,
                NULL);
     dh = TALER_CRYPTO_helper_cs_connect (cfg,
+                                         "taler",
                                          &key_cb,
                                          NULL);
     if (NULL != dh)
-- 
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