src/utils_rrdcreate.c: srrd_create: Copy the `filename' argument.

Some versions of librrd, for example the one in Debian Etch, don't have the
`const' qualifier for the first (filename) argument for `rrd_create_r'. So
we'll copy the argument first. This sucks big time, but is the only reasonable
way to get around this.

diff --git a/src/utils_rrdcreate.c b/src/utils_rrdcreate.c
index 99feda257f5533c20523728e9f46058ea38d9897..8ff025bdf848731be525e14db1ab5e49ace7abcf 100644 (file)
--- a/src/utils_rrdcreate.c
+++ b/src/utils_rrdcreate.c
@@ -253,11 +253,26 @@ static int srrd_create (const char *filename, /* {{{ */
     int argc, const char **argv)
 {
   int status;
+  char *filename_copy;
+
+  if ((filename == NULL) || (argv == NULL))
+    return (-EINVAL);
+
+  /* Some versions of librrd don't have the `const' qualifier for the first
+   * argument, so we have to copy the pointer here to avoid warnings. It sucks,
+   * but what else can we do? :(  -octo */
+  filename_copy = strdup (filename);
+  if (filename_copy == NULL)
+  {
+    ERROR ("srrd_create: strdup failed.");
+    return (-ENOMEM);
+  }
 
   optind = 0; /* bug in librrd? */
   rrd_clear_error ();
 
-  status = rrd_create_r (filename, pdp_step, last_up, argc, (void *) argv);
+  status = rrd_create_r (filename_copy, pdp_step, last_up,
+      argc, (void *) argv);
 
   if (status != 0)
   {
@@ -265,6 +280,8 @@ static int srrd_create (const char *filename, /* {{{ */
         filename, rrd_get_error ());
   }
 
+  sfree (filename_copy);
+
   return (status);
 } /* }}} int srrd_create */
 /* #endif HAVE_THREADSAFE_LIBRRD */