wifi: Add command buffer length parameter to wifi_command()

Change-Id: I832bc51279e0fb7d3002298f87a35b816b666ad5
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

2 files changed, 6 insertions, 3 deletions

diff --git a/include/hardware_legacy/wifi.h b/include/hardware_legacy/wifi.h
index be6a83e..a437617 100644
--- a/include/hardware_legacy/wifi.h
+++ b/include/hardware_legacy/wifi.h
@@ -97,7 +97,8 @@ int wifi_wait_for_event(const char *iface, char *buf, size_t len);
  * driver commands that are supported
  *
  * @param iface is the interface on which command is sent
- * @param command is the string command
+ * @param command is the string command (preallocated with 32 bytes)
+ * @param commandlen is command buffer length
  * @param reply is a buffer to receive a reply string
  * @param reply_len on entry, this is the maximum length of
  *        the reply buffer. On exit, the number of
@@ -105,7 +106,8 @@ int wifi_wait_for_event(const char *iface, char *buf, size_t len);
  *
  * @return 0 if successful, < 0 if an error.
  */
-int wifi_command(const char *iface, const char *command, char *reply, size_t *reply_len);
+int wifi_command(const char *iface, char *command, size_t commandlen,
+                 char *reply, size_t *reply_len);
 
 /**
  * do_dhcp_request() issues a dhcp request and returns the acquired
diff --git a/wifi/wifi.c b/wifi/wifi.c
index c8142b7..485cd7d 100644
--- a/wifi/wifi.c
+++ b/wifi/wifi.c
@@ -834,7 +834,8 @@ void wifi_close_supplicant_connection(const char *ifname)
     }
 }
 
-int wifi_command(const char *ifname, const char *command, char *reply, size_t *reply_len)
+int wifi_command(const char *ifname, char *command, size_t commandlen,
+                 char *reply, size_t *reply_len)
 {
     if (is_primary_interface(ifname)) {
         return wifi_send_command(PRIMARY, command, reply, reply_len);