Add a --master-key option

This lets the user override the default location for the master key
when used with --keygen

Part of 16769.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/or/config.c b/src/or/config.c
index b4a490c70f..d954316b3b 100644
--- a/src/or/config.c
+++ b/src/or/config.c
@@ -762,6 +762,7 @@ or_options_free(or_options_t *options)
   }
   tor_free(options->BridgePassword_AuthDigest_);
   tor_free(options->command_arg);
+  tor_free(options->master_key_fname);
   config_free(&options_format, options);
 }
 
@@ -1919,6 +1920,7 @@ static const struct {
   { "--list-fingerprint",     TAKES_NO_ARGUMENT },
   { "--keygen",               TAKES_NO_ARGUMENT },
   { "--newpass",              TAKES_NO_ARGUMENT },
+  { "--master-key",           ARGUMENT_NECESSARY },
   { "--no-passphrase",        TAKES_NO_ARGUMENT },
   { "--passphrase-fd",        ARGUMENT_NECESSARY },
   { "--verify-config",        TAKES_NO_ARGUMENT },
@@ -4547,6 +4549,19 @@ options_init_from_torrc(int argc, char **argv)
     }
   }
 
+  {
+    const config_line_t *key_line = config_line_find(cmdline_only_options,
+                                                     "--master-key");
+    if (key_line) {
+      if (command != CMD_KEYGEN) {
+        log_err(LD_CONFIG, "--master-key without --keygen!");
+        exit(1);
+      } else {
+        get_options_mutable()->master_key_fname = tor_strdup(key_line->value);
+      }
+    }
+  }
+
  err:
 
   tor_free(cf);