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, 1 deletions

diff --git a/winsup/cygwin/dtable.h b/winsup/cygwin/dtable.h
index 9ec6dfa..b67cfbc 100644
--- a/winsup/cygwin/dtable.h
+++ b/winsup/cygwin/dtable.h
@@ -21,6 +21,7 @@ public:
   size_t size;
 
   dtable () : first_fd_for_open(3), cnt_need_fixup_before(0) {}
+  void init () {first_fd_for_open = 3;}
 
   void dec_need_fixup_before ()
     { if (cnt_need_fixup_before > 0) --cnt_need_fixup_before; }
@@ -31,6 +32,7 @@ public:
 
   int vfork_child_dup ();
   void vfork_parent_restore ();
+  void vfork_child_fixup ();
   fhandler_base *dup_worker (fhandler_base *oldfh);
   int extend (int howmuch);
   void fixup_before_exec (DWORD win_proc_id);
@@ -45,7 +47,7 @@ public:
   void release (int fd);
   void init_std_file_from_handle (int fd, HANDLE handle, DWORD access, const char *name);
   int dup2 (int oldfd, int newfd);
-  void fixup_after_exec (HANDLE, size_t, fhandler_base **);
+  void fixup_after_exec (HANDLE);
   inline fhandler_base *operator [](int fd) { return fds[fd]; }
   select_record *select_read (int fd, select_record *s);
   select_record *select_write (int fd, select_record *s);