* cygheap.cc (creturn): Set appropriate errno when out of memory.

(ccalloc): Only issue system_printf when debugging.
* dtable.cc (dtable::extend): Only allocate 100 * the incremental growth size
max.  Set errno appropriately.
(dtable::build_fhandler): Check for error from set_name.
* fhandler.cc (fhandler_base::set_name): Set errno and return error on OOM.
* fhandler.h (fhandler_base::set_name): Change to bool.
* fhandler_process.cc (format_process_stat): Fix formatting.
* resource.cc (getrlimit): Return greater of OPEN_MAX or fd table size.
* sysconf.cc (sysconf): Ditto.

winsup/cygwin/resource.cc

@@ -137,6 +137,8 @@ getrlimit (int resource, struct rlimit *rlp)
       break;
     case RLIMIT_NOFILE:
       rlp->rlim_cur = getdtablesize ();
+      if (rlp->rlim_cur < OPEN_MAX)
+	rlp->rlim_cur = OPEN_MAX;
       break;
     case RLIMIT_CORE:
       rlp->rlim_cur = rlim_core;