Fix build_supermin_appliance to return kernel / initrd names.

diff --git a/src/guestfs.c b/src/guestfs.c
index 8f06d3b..20fafc1 100644 (file)
--- a/src/guestfs.c
+++ b/src/guestfs.c
@@ -1148,17 +1148,26 @@ build_supermin_appliance (guestfs_h *g, const char *path,
                          char **kernel, char **initrd)
 {
   char cmd[4096];
-  int r;
+  int r, len;
+
+  len = strlen (g->tmpdir);
+  *kernel = safe_malloc (g, len + 8);
+  snprintf (*kernel, len+8, "%s/kernel", g->tmpdir);
+  *initrd = safe_malloc (g, len + 8);
+  snprintf (*initrd, len+8, "%s/initrd", g->tmpdir);
 
   snprintf (cmd, sizeof cmd,
            "PATH='%s':$PATH "
-           "guestfs-supermin-helper '%s' %s/kernel %s/initrd",
+           "guestfs-supermin-helper '%s' %s %s",
            path,
-           path, g->tmpdir, g->tmpdir);
+           path, *kernel, *initrd);
 
   r = system (cmd);
   if (r == -1 || WEXITSTATUS(r) != 0) {
     error (g, _("external command failed: %s"), cmd);
+    free (*kernel);
+    free (*initrd);
+    *kernel = *initrd = NULL;
     return -1;
   }