Add command trace functionality.

[libguestfs.git] / src / guestfs.c

diff --git a/src/guestfs.c b/src/guestfs.c
index 571205f..98d99b8 100644 (file)
--- a/src/guestfs.c
+++ b/src/guestfs.c
@@ -170,6 +170,7 @@ struct guestfs_h
   int cmdline_size;
 
   int verbose;
+  int trace;
   int autosync;
 
   char *path;                  /* Path to kernel, initrd. */
@@ -238,6 +239,9 @@ guestfs_create (void)
   str = getenv ("LIBGUESTFS_DEBUG");
   g->verbose = str != NULL && strcmp (str, "1") == 0;
 
+  str = getenv ("LIBGUESTFS_TRACE");
+  g->trace = str != NULL && strcmp (str, "1") == 0;
+
   str = getenv ("LIBGUESTFS_PATH");
   g->path = str != NULL ? strdup (str) : strdup (GUESTFS_DEFAULT_PATH);
   if (!g->path) goto error;
@@ -734,6 +738,19 @@ guestfs__version (guestfs_h *g)
   return r;
 }
 
+int
+guestfs__set_trace (guestfs_h *g, int t)
+{
+  g->trace = !!t;
+  return 0;
+}
+
+int
+guestfs__get_trace (guestfs_h *g)
+{
+  return g->trace;
+}
+
 /* Add a string to the current command line. */
 static void
 incr_cmdline_size (guestfs_h *g)