Add a file_exec_file_name RPC

* hurd/fs.defs (file_exec): Deprecate in favor of...
(file_exec_paths): ...this new RPC.
* TODO: Update.
* doc/hurd.texi: Update RPC name.
* hurd/hurd_types.h: Update RPC name.
* libdiskfs/boot-start.c: Update RPC name.
* configure.ac: Check for presence of RPC stubs file_exec_paths exec_exec_paths.
* exec/hashexec.c (check_hashbang): When file_exec_paths is available, use it
instead of file_exec.
* startup/startup.c (run, run_for_real, start_child): Likewise.
* utils/login.c (main): Likewise.
* libfshelp/start-translator-long.c (fshelp_start_translator_long): Likewise.
* libdiskfs/file-exec.c (diskfs_S_file_exec): Move code to
new function diskfs_S_file_exec_paths and call it.
(diskfs_S_file_exec_paths): New function, use exec_exec_paths when available
instead of exec_exec
* libnetfs/file-exec.c (netfs_S_file_exec, netfs_S_file_exec_paths): Likewise.
* trans/fakeroot.c (netfs_S_file_exec, netfs_S_file_exec_paths): Likewise.
* libtrivfs/file-exec.c (trivfs_S_file_exec_paths): New function.

1 files changed, 74 insertions, 23 deletions

diff --git a/trans/fakeroot.c b/trans/fakeroot.c
index df47b00f..711a8565 100644
--- a/trans/fakeroot.c
+++ b/trans/fakeroot.c
@@ -882,23 +882,25 @@ netfs_file_get_storage_info (struct iouser *cred,
 }
 
 kern_return_t
-netfs_S_file_exec (struct protid *user,
-                   task_t task,
-                   int flags,
-                   char *argv,
-                   size_t argvlen,
-                   char *envp,
-                   size_t envplen,
-                   mach_port_t *fds,
-                   size_t fdslen,
-                   mach_port_t *portarray,
-                   size_t portarraylen,
-                   int *intarray,
-                   size_t intarraylen,
-                   mach_port_t *deallocnames,
-                   size_t deallocnameslen,
-                   mach_port_t *destroynames,
-                   size_t destroynameslen)
+netfs_S_file_exec_paths (struct protid *user,
+			 task_t task,
+			 int flags,
+			 char *path,
+			 char *abspath,
+			 char *argv,
+			 size_t argvlen,
+			 char *envp,
+			 size_t envplen,
+			 mach_port_t *fds,
+			 size_t fdslen,
+			 mach_port_t *portarray,
+			 size_t portarraylen,
+			 int *intarray,
+			 size_t intarraylen,
+			 mach_port_t *deallocnames,
+			 size_t deallocnameslen,
+			 mach_port_t *destroynames,
+			 size_t destroynameslen)
 {
   error_t err;
   file_t file;
@@ -917,14 +919,30 @@ netfs_S_file_exec (struct protid *user,
 
   if (!err)
     {
+#ifdef HAVE_FILE_EXEC_PATHS
       /* We cannot use MACH_MSG_TYPE_MOVE_SEND because we might need to
 	 retry an interrupted call that would have consumed the rights.  */
-      err = file_exec (netfs_node_netnode (user->po->np)->file,
-		       task, flags, argv, argvlen,
-		       envp, envplen, fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
-		       portarray, MACH_MSG_TYPE_COPY_SEND, portarraylen,
-		       intarray, intarraylen, deallocnames, deallocnameslen,
-		       destroynames, destroynameslen);
+      err = file_exec_paths (netfs_node_netnode (user->po->np)->file,
+			     task, flags,
+			     path, abspath,
+			     argv, argvlen,
+			     envp, envplen,
+			     fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
+			     portarray, MACH_MSG_TYPE_COPY_SEND,
+			     portarraylen,
+			     intarray, intarraylen,
+			     deallocnames, deallocnameslen,
+			     destroynames, destroynameslen);
+      /* For backwards compatibility.  Just drop it when we kill
+	 file_exec.  */
+      if (err == MIG_BAD_ID)
+#endif
+	err = file_exec (user->po->np->nn->file, task, flags, argv, argvlen,
+			 envp, envplen, fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
+			 portarray, MACH_MSG_TYPE_COPY_SEND, portarraylen,
+			 intarray, intarraylen, deallocnames, deallocnameslen,
+			 destroynames, destroynameslen);
+
       mach_port_deallocate (mach_task_self (), file);
     }
 
@@ -940,6 +958,39 @@ netfs_S_file_exec (struct protid *user,
   return err;
 }
 
+kern_return_t
+netfs_S_file_exec (struct protid *user,
+                   task_t task,
+                   int flags,
+                   char *argv,
+                   size_t argvlen,
+                   char *envp,
+                   size_t envplen,
+                   mach_port_t *fds,
+                   size_t fdslen,
+                   mach_port_t *portarray,
+                   size_t portarraylen,
+                   int *intarray,
+                   size_t intarraylen,
+                   mach_port_t *deallocnames,
+                   size_t deallocnameslen,
+                   mach_port_t *destroynames,
+                   size_t destroynameslen)
+{
+  return netfs_S_file_exec_paths (user,
+				  task,
+				  flags,
+				  "",
+				  "",
+				  argv, argvlen,
+				  envp, envplen,
+				  fds, fdslen,
+				  portarray, portarraylen,
+				  intarray, intarraylen,
+				  deallocnames, deallocnameslen,
+				  destroynames, destroynameslen);
+}
+
 error_t
 netfs_S_io_map (struct protid *user,
 		mach_port_t *rdobj, mach_msg_type_name_t *rdobjtype,