allow cancelling execution of commands which take long time

src/openpgp-do.c

@@ -25,6 +25,7 @@
 #include <stdint.h>
 #include <string.h>
 #include <stdlib.h>
+#include <chopstx.h>
 
 #include "config.h"
 
@@ -2059,7 +2060,10 @@ gpg_do_keygen (uint8_t kk_byte)
 
   if (attr == ALGO_RSA2K || attr == ALGO_RSA4K)
     {
+      int cs = chopstx_setcancelstate (0); /* Allow cancellation.  */
+      /* XXX: We need to free up the allocated memory on cancellation.  */
       p_q_modulus = rsa_genkey (prvkey_len);
+      chopstx_setcancelstate (cs);
       if (p_q_modulus == NULL)
 	{
 	  GPG_MEMORY_FAILURE ();