* exceptions.cc (interruptible): Allocate slightly more space for directory

name check.  Windows 95 seems to null-terminate the directory otherwise.
(interrupt_on_return): Issue a fatal error if we can't find the caller's stack.
* spawn.cc (find_exec): Accept a path_conv argument rather than a buffer so
that the caller can find things out about a translated path.
(perhaps_suffix): Ditto.
(spawn_guts): Allocate path_conv stuff here so that we can find out stuff about
the translated path (this is work in progress).
* environ.cc (environ_init): Accept an as-yet unused argument indicating
whether we were invoked from a cygwin parent or not.
(winenv): Ditto.
(posify): Accept an argument indicating whether the path has already been
translated.
* dlfcn.cc (check_access): Provide a path_conv buffer to find_exec.
* exec.cc (sexecvpe): Ditto.
* path.cc (path_conv::check): Rename from path_conv::path_conv.
(mount_item::getmntent): Recognize "Cygwin executable" bit.
(symlink_info::check): Remove debugging statements.
* path.h (class path_conv): Add iscygexec method.  Rewrite constructor to call
"check" method to allow multiple operations on a path_conv variable.
* pinfo.cc (pinfo_init): Pass argument to environ_init.
* shared.h: Bump PROC_MAGIC.
* winsup.h: Reflect above changes to function arguments.
* include/sys/mount.h: Add MOUNT_CYGWIN_EXEC type.

1 files changed, 12 insertions, 2 deletions

diff --git a/winsup/cygwin/path.h b/winsup/cygwin/path.h
index f3be6b542..f2dff1b98 100644
--- a/winsup/cygwin/path.h
+++ b/winsup/cygwin/path.h
@@ -31,6 +31,7 @@ enum
   PATH_SYMLINK = MOUNT_SYMLINK,
   PATH_BINARY = MOUNT_BINARY,
   PATH_EXEC = MOUNT_EXEC,
+  PATH_CYGWIN_EXEC = MOUNT_CYGWIN_EXEC,
   PATH_SOCKET =  0x40000000,
   PATH_HASACLS = 0x80000000
 };
@@ -49,6 +50,7 @@ class path_conv
   int issymlink () {return path_flags & PATH_SYMLINK;}
   int issocket () {return path_flags & PATH_SOCKET;}
   int isexec () {return path_flags & PATH_EXEC;}
+  int iscygexec () {return path_flags & PATH_CYGWIN_EXEC;}
 
   void set_binary () {path_flags |= PATH_BINARY;}
   void set_symlink () {path_flags |= PATH_SYMLINK;}
@@ -63,8 +65,16 @@ class path_conv
 
   DWORD fileattr;
 
-  path_conv (const char * const, symlink_follow follow_mode = SYMLINK_FOLLOW,
-	     int use_full_path = 0, const suffix_info *suffixes = NULL);
+  void check (const char *src, symlink_follow follow_mode = SYMLINK_FOLLOW,
+	      int use_full_path = 0, const suffix_info *suffixes = NULL);
+  path_conv (const char *src, symlink_follow follow_mode = SYMLINK_FOLLOW,
+	     int use_full_path = 0, const suffix_info *suffixes = NULL)
+  {
+    check (src, follow_mode, use_full_path, suffixes);
+  }
+
+  path_conv (): path_flags (0), known_suffix (NULL), error (0), devn (0), unit (0), fileattr (0xffffffff) {path[0] = '\0';}
+
   inline char *get_win32 () { return path; }
   operator char *() {return path; }
   BOOL is_device () {return devn != FH_BAD;}