Add GPGME_PROTOCOL_SPAWN and gpgme_op_spawn.

* src/gpgme.h.in (GPGME_PROTOCOL_SPAWN): New.
(GPGME_SPAWN_DETACHED, GPGME_SPAWN_ALLOW_SET_FG): New.
* src/gpgme.c (gpgme_set_protocol): Add new protocol.
(gpgme_get_protocol_name): Ditto.
* src/spawn.c: New.
* src/libgpgme.vers, src/gpgme.def: Add new public functions.
* src/engine-spawn.c: New.
* src/Makefile.am: Add new files.
* src/engine-backend.h (struct engine_ops): Add OPSPAWN.
* src/engine.c (engine_ops): Add _gpgme_engine_ops_spawn.
(gpgme_get_engine_info): Add Spawn to the list of protocols.
(_gpgme_engine_op_spawn): New.

* src/gpgme-tool.c (gt_protocol_from_name): Add new protocol.
(gt_spawn, cmd_spawn): New.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/engine-backend.h b/src/engine-backend.h
index 7e6c0c12..dbb9e932 100644
--- a/src/engine-backend.h
+++ b/src/engine-backend.h
@@ -124,6 +124,14 @@ struct engine_ops
 
   /* Set the pinentry mode.  */
   gpgme_error_t (*set_pinentry_mode) (void *engine, gpgme_pinentry_mode_t mode);
+
+  /* The spawn command.  */
+  gpgme_error_t (*opspawn) (void * engine,
+                            const char *file, const char *argv[],
+                            gpgme_data_t datain,
+                            gpgme_data_t dataout,
+                            gpgme_data_t dataerr);
+
 };
 
 
@@ -135,6 +143,7 @@ extern struct engine_ops _gpgme_engine_ops_g13;         /* Crypto VFS. */
 #ifdef ENABLE_UISERVER
 extern struct engine_ops _gpgme_engine_ops_uiserver;
 #endif
+extern struct engine_ops _gpgme_engine_ops_spawn;       /* Spawn engine. */
 
 
 /* Prototypes for extra functions in engine-gpgconf.c  */