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.

2 files changed, 30 insertions, 8 deletions

diff --git a/hurd/fs.defs b/hurd/fs.defs
index 6c0b5731..14800d9a 100644
--- a/hurd/fs.defs
+++ b/hurd/fs.defs
@@ -1,5 +1,6 @@
 /* Definitions for the filesystem interface.
-   Copyright (C) 1994,95,96,97,98,99,2002 Free Software Foundation, Inc.
+   Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2002, 2010
+   Free Software Foundation, Inc.
 
 This file is part of the GNU Hurd.
 
@@ -35,7 +36,8 @@ INTR_INTERFACE
 /* Overlay a task with a file.  Necessary initialization, including
    authentication changes associated with set[ug]id execution must be
    handled by the filesystem.  Filesystems normally implement this by
-   using exec_newtask or exec_loadtask as appropriate.  */
+   using exec_newtask or exec_loadtask as appropriate.
+   Deprecated: use file_exec_paths instead.  */
 routine file_exec (
 	exec_file: file_t;
 	RPT
@@ -129,8 +131,8 @@ routine file_lock_stat (
    (regardless of the current open modes for this port).  ALLOWED is a
    bitwise OR of O_READ, O_WRITE, and O_EXEC.  This is not necessarily the
    same as what an open or exec would allow; O_EXEC is set for root even if
-   no executable bits are on (in which case file_exec should fail) and
-   O_WRITE is set a directory can be modified, even though it can't be
+   no executable bits are on (in which case file_exec_paths should fail)
+   and O_WRITE is set a directory can be modified, even though it can't be
    written directly.  */
 routine file_check_access (
 	file: file_t;
@@ -355,3 +357,22 @@ routine file_reparent (
 
 skip;	/* Was: file_get_children.  */
 skip;	/* Was: file_get_source.  */
+
+/* Overlay a task with a file.  Necessary initialization, including
+   authentication changes associated with set[ug]id execution must be
+   handled by the filesystem.  Filesystems normally implement this by
+   using exec_newtask or exec_loadtask as appropriate.  */
+routine file_exec_paths (
+	exec_file: file_t;
+	RPT
+	exec_task: task_t;
+	flags: int;
+	path: string_t;
+	abspath: string_t;
+	argv: data_t SCP;
+	envp: data_t SCP;
+	fdarray: portarray_t SCP;
+	portarray: portarray_t SCP;
+	intarray: intarray_t SCP;
+	deallocnames: mach_port_name_array_t SCP;
+	destroynames: mach_port_name_array_t SCP);
diff --git a/hurd/hurd_types.h b/hurd/hurd_types.h
index 2960a294..9fa9ae29 100644
--- a/hurd/hurd_types.h
+++ b/hurd/hurd_types.h
@@ -1,5 +1,6 @@
 /* C declarations for Hurd server interfaces
-   Copyright (C) 1993,94,95,96,98,99,2001,02 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2001, 2002,
+   2010 Free Software Foundation, Inc.
 
 This file is part of the GNU Hurd.
 
@@ -81,7 +82,7 @@ typedef struct timespec timespec_t;
 /* Many such parameters and flags are also defined in various libc
    headers. */
 
-/* Bits for flags in fs.defs:file_exec and exec.defs:exec_* calls: */
+/* Bits for flags in fs.defs:file_exec_paths and exec.defs:exec_* calls: */
 #define EXEC_NEWTASK	0x00000001 /* Create new task; kill old one.  */
 #define EXEC_SECURE	0x00000002 /* Use secure values of portarray, etc. */
 #define EXEC_DEFAULTS	0x00000004 /* Use defaults for unspecified ports.  */
@@ -350,7 +351,7 @@ typedef int *procinfo_t;
 #define FSTYPE_MEMFS   0x00000019 /* In-core filesystem */
 #define FSTYPE_ISO9660 0x0000001a /* ISO9660 */
 
-/* Standard port assignments for file_exec and exec_* */
+/* Standard port assignments for file_exec_paths and exec_* */
 enum
   {
     INIT_PORT_CWDIR,
@@ -364,7 +365,7 @@ enum
     INIT_PORT_MAX
   };
 
-/* Standard ints for file_exec and exec_* */
+/* Standard ints for file_exec_paths and exec_* */
 enum
   {
     INIT_UMASK,