usbredirparser: Add usbredirparser_caps_set_cap helper

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/usbredirparser/usbredirparser.c b/usbredirparser/usbredirparser.c
index aa128b2..c51c7c6 100644
--- a/usbredirparser/usbredirparser.c
+++ b/usbredirparser/usbredirparser.c
@@ -139,6 +139,11 @@ void usbredirparser_destroy(struct usbredirparser *parser_pub)
     free(parser);
 }
 
+void usbredirparser_caps_set_cap(uint32_t *caps, int cap)
+{
+    caps[cap / 32] |= 1 << (cap % 32);
+}
+
 int usbredirparser_peer_has_cap(struct usbredirparser *parser_pub, int cap)
 {
     struct usbredirparser_priv *parser =
diff --git a/usbredirparser/usbredirparser.h b/usbredirparser/usbredirparser.h
index e2f5ec7..620c86d 100644
--- a/usbredirparser/usbredirparser.h
+++ b/usbredirparser/usbredirparser.h
@@ -168,6 +168,11 @@ struct usbredirparser {
    usbredirparser_init */
 struct usbredirparser *usbredirparser_create(void);
 
+/* Set capability cap in the USB_REDIR_CAPS_SIZE sized caps array,
+   this is a helper function to set capabilities in the caps array
+   passed to usbredirparser_init(). */
+void usbredirparser_caps_set_cap(uint32_t *caps, int cap);
+
 /* Init the parser, this will queue an initial usb_redir_hello packet,
    sending the version and caps to the peer, as well as configure the parsing
    according to the passed in flags. */