[Qemu-devel] [PATCH v2 4/6] qemu-img amend: Support multiple -o options

[Kevin Wolf <kwolf@redhat.com>]

Instead of ignoring all option values but the last one, multiple -o
options now have the same meaning as having a single option with all
settings in the order of their respective -o options.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 qemu-img.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/qemu-img.c b/qemu-img.c
index ba6e82d..d6dc7ec 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2658,7 +2658,13 @@ static int img_amend(int argc, char **argv)
                 help();
                 break;
             case 'o':
-                options = optarg;
+                if (!options) {
+                    options = g_strdup(optarg);
+                } else {
+                    char *old_options = options;
+                    options = g_strdup_printf("%s,%s", options, optarg);
+                    g_free(old_options);
+                }
                 break;
             case 'f':
                 fmt = optarg;
@@ -2688,7 +2694,7 @@ static int img_amend(int argc, char **argv)
 
     fmt = bs->drv->format_name;
 
-    if (is_help_option(options)) {
+    if (has_help_option(options)) {
         ret = print_block_option_help(filename, fmt);
         goto out;
     }
@@ -2715,6 +2721,8 @@ out:
     }
     free_option_parameters(create_options);
     free_option_parameters(options_param);
+    g_free(options);
+
     if (ret) {
         return 1;
     }
-- 
1.8.1.4