From 7f654a6a6fb5e956b996eece36ff95e590a6ad63 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Thu, 12 May 2011 19:17:48 -0400
Subject: Add a ControlPortFileGroupWritable option

---
 src/or/config.c  | 1 +
 src/or/control.c | 8 ++++++++
 src/or/or.h      | 2 ++
 3 files changed, 11 insertions(+)

(limited to 'src')

diff --git a/src/or/config.c b/src/or/config.c
index 5eb62291bc..a7ff28f462 100644
--- a/src/or/config.c
+++ b/src/or/config.c
@@ -206,6 +206,7 @@ static config_var_t _option_vars[] = {
   V(ContactInfo,                 STRING,   NULL),
   V(ControlListenAddress,        LINELIST, NULL),
   V(ControlPort,                 PORT,     "0"),
+  V(ControlPortFileGroupReadable,BOOL,     "0"),
   V(ControlPortWriteToFile,      FILENAME, NULL),
   V(ControlSocket,               LINELIST, NULL),
   V(CookieAuthentication,        BOOL,     "0"),
diff --git a/src/or/control.c b/src/or/control.c
index 634674233c..384e579f93 100644
--- a/src/or/control.c
+++ b/src/or/control.c
@@ -542,6 +542,14 @@ control_ports_write_to_file(void)
     log_warn(LD_CONTROL, "Writing %s failed: %s",
              options->ControlPortWriteToFile, strerror(errno));
   }
+#ifndef MS_WINDOWS
+  if (options->ControlPortFileGroupReadable) {
+    if (chmod(options->ControlPortWriteToFile, 0640)) {
+      log_warn(LD_FS,"Unable to make %s group-readable.",
+               options->ControlPortWriteToFile);
+    }
+  }
+#endif
   tor_free(joined);
   SMARTLIST_FOREACH(lines, char *, cp, tor_free(cp));
   smartlist_free(lines);
diff --git a/src/or/or.h b/src/or/or.h
index 412aac9822..a73d98ab74 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -2876,6 +2876,8 @@ typedef struct {
 
   /** File where we should write the ControlPort. */
   char *ControlPortWriteToFile;
+  /** Should that file be group-readable? */
+  int ControlPortFileGroupReadable;
 
 } or_options_t;
 
-- 
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