Throughout, change fdtab references to cygheap->fdtab.

* child_info.h (cygheap_exec_info): Eliminate special fdtab stuff.
* spawn.cc (spawn_guts): Ditto.
* cygheap.cc (cygheap_init): Initialize fdtab, if appropriate.
* cygheap.h (CYGHEAPSIZE): Include size of init_cygheap.
(_cmalloc_entry): Include fdtab here.
* dtable.h (dtable): Declare/define new methods.
* dtable.cc (dtable::vfork_child_fixup): New method.
(dtable::fixup_after_exec): Remove unneeded extra arguments.
* dcrt0.cc (dll_crt0_1): Ditto.
* environ.cc (getwinenv): Use case sensitive comparison.
(winenv): Make a copy of environment cache to avoid realloc problems when
duplicate environment variables exist in the environment.  (From Egor Duda)
* net.cc (cygwin_socket): Revert Apr 14 change.
* include/sys/file.h: Protect against previous X_OK definition.
* passwd.cc: Eliminate passwd_sem throughout.
* security.cc: Ditto.
* cygwin.din: Export New functions.
* passwd.cc (read_etc_passwd): Make race safe.
(getpwuid_r): New function.
(getpwnam_r): New function.

1 files changed, 3 insertions, 2 deletions

diff --git a/winsup/cygwin/cygheap.h b/winsup/cygwin/cygheap.h
index b807612a5..6a8e56290 100644
--- a/winsup/cygwin/cygheap.h
+++ b/winsup/cygwin/cygheap.h
@@ -24,8 +24,6 @@ enum cygheap_types
   HEAP_1_MAX = 100
 };
 
-#define CYGHEAPSIZE ((4000 * sizeof (fhandler_union)) + (2 * 65536))
-
 #define incygheap(s) (cygheap && ((char *) (s) >= (char *) cygheap) && ((char *) (s) <= ((char *) cygheap_max)))
 
 struct _cmalloc_entry
@@ -124,8 +122,11 @@ struct init_cygheap
   HANDLE shared_h;
   HANDLE console_h;
   cwdstuff cwd;
+  dtable fdtab;
 };
 
+#define CYGHEAPSIZE (sizeof (init_cygheap) + (4000 * sizeof (fhandler_union)) + (2 * 65536))
+
 extern init_cygheap *cygheap;
 extern void *cygheap_max;