Added qgetfd() to cstubs for GL.
Added new module dbm (interface to ndbm).
diff --git a/Modules/dbmmodule.c b/Modules/dbmmodule.c
new file mode 100644
index 0000000..4655979
--- /dev/null
+++ b/Modules/dbmmodule.c
@@ -0,0 +1,276 @@
+/***********************************************************
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
+Netherlands.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the names of Stichting Mathematisch
+Centrum or CWI not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+******************************************************************/
+
+/* DBM module using dictionary interface */
+
+
+#include "allobjects.h"
+#include "modsupport.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ndbm.h>
+
+typedef struct {
+ OB_HEAD
+ int di_size; /* -1 means recompute */
+ DBM *di_dbm;
+} dbmobject;
+
+extern typeobject Dbmtype; /* Really forward */
+
+#define is_dbmobject(v) ((v)->ob_type == &Dbmtype)
+
+static object *DbmError;
+
+static object *
+newdbmobject(file, flags, mode)
+ char *file;
+ int flags;
+ int mode;
+{
+ dbmobject *dp;
+
+ dp = NEWOBJ(dbmobject, &Dbmtype);
+ if (dp == NULL)
+ return NULL;
+ dp->di_size = -1;
+ if ( (dp->di_dbm = dbm_open(file, flags, mode)) == 0 ) {
+ err_errno(DbmError);
+ DECREF(dp);
+ return 0;
+ }
+ return (object *)dp;
+}
+
+/* Methods */
+
+static void
+dbm_dealloc(dp)
+ register dbmobject *dp;
+{
+ if ( dp->di_dbm )
+ dbm_close(dp->di_dbm);
+ DEL(dp);
+}
+
+static int
+dbm_length(dp)
+ dbmobject *dp;
+{
+ if ( dp->di_size < 0 ) {
+ datum key;
+ int size;
+
+ size = 0;
+ for ( key=dbm_firstkey(dp->di_dbm); key.dptr;
+ key = dbm_nextkey(dp->di_dbm))
+ size++;
+ dp->di_size = size;
+ }
+ return dp->di_size;
+}
+
+static object *
+dbm_subscript(dp, key)
+ dbmobject *dp;
+ register object *key;
+{
+ object *v;
+ datum drec, krec;
+
+ if (!getargs(key, "s#", &krec.dptr, &krec.dsize) )
+ return NULL;
+
+ drec = dbm_fetch(dp->di_dbm, krec);
+ if ( drec.dptr == 0 ) {
+ err_setstr(KeyError, GETSTRINGVALUE((stringobject *)key));
+ return 0;
+ }
+ if ( dbm_error(dp->di_dbm) ) {
+ dbm_clearerr(dp->di_dbm);
+ err_setstr(DbmError, "");
+ return 0;
+ }
+ return newsizedstringobject(drec.dptr, drec.dsize);
+}
+
+static int
+dbm_ass_sub(dp, v, w)
+ dbmobject *dp;
+ object *v, *w;
+{
+ datum krec, drec;
+
+ if ( !getargs(v, "s#", &krec.dptr, &krec.dsize) ) {
+ err_setstr(TypeError, "dbm mappings have string indices only");
+ return -1;
+ }
+ dp->di_size = -1;
+ if (w == NULL) {
+ if ( dbm_delete(dp->di_dbm, krec) < 0 ) {
+ err_setstr(KeyError, GETSTRINGVALUE((stringobject *)v));
+ return -1;
+ }
+ } else {
+ if ( !getargs(w, "s#", &drec.dptr, &drec.dsize) ) {
+ err_setstr(TypeError,
+ "dbm mappings have string elements only");
+ return -1;
+ }
+ if ( dbm_store(dp->di_dbm, krec, drec, DBM_REPLACE) < 0 ) {
+ err_setstr(DbmError, "Cannot add item to database");
+ return -1;
+ }
+ }
+ if ( dbm_error(dp->di_dbm) ) {
+ dbm_clearerr(dp->di_dbm);
+ err_setstr(DbmError, "");
+ return -1;
+ }
+ return 0;
+}
+
+static mapping_methods dbm_as_mapping = {
+ dbm_length, /*mp_length*/
+ dbm_subscript, /*mp_subscript*/
+ dbm_ass_sub, /*mp_ass_subscript*/
+};
+
+static object *
+dbm_keys(dp, args)
+ register dbmobject *dp;
+ object *args;
+{
+ register object *v, *item;
+ datum key;
+
+ if (dp == NULL || !is_dbmobject(dp)) {
+ err_badcall();
+ return NULL;
+ }
+ if (!getnoarg(args))
+ return NULL;
+ v = newlistobject(0);
+ if (v == NULL)
+ return NULL;
+ for (key = dbm_firstkey(dp->di_dbm); key.dptr;
+ key = dbm_nextkey(dp->di_dbm) ) {
+ item = newsizedstringobject(key.dptr, key.dsize);
+ if ( item == 0 )
+ return NULL;
+ addlistitem(v, item);
+ }
+ return v;
+}
+
+
+static object *
+dbm_has_key(dp, args)
+ register dbmobject *dp;
+ object *args;
+{
+ datum key, val;
+
+ if (!getargs(args, "s#", &key.dptr, &key.dsize))
+ return NULL;
+ val = dbm_fetch(dp->di_dbm, key);
+ return newintobject(val.dptr != NULL);
+}
+
+static struct methodlist dbm_methods[] = {
+ {"keys", dbm_keys},
+ {"has_key", dbm_has_key},
+ {NULL, NULL} /* sentinel */
+};
+
+static object *
+dbm_getattr(dp, name)
+ dbmobject *dp;
+ char *name;
+{
+ return findmethod(dbm_methods, (object *)dp, name);
+}
+
+typeobject Dbmtype = {
+ OB_HEAD_INIT(&Typetype)
+ 0,
+ "Dbm_dictionary",
+ sizeof(dbmobject),
+ 0,
+ dbm_dealloc, /*tp_dealloc*/
+ 0, /*tp_print*/
+ dbm_getattr, /*tp_getattr*/
+ 0, /*tp_setattr*/
+ 0, /*tp_compare*/
+ 0, /*tp_repr*/
+ 0, /*tp_as_number*/
+ 0, /*tp_as_sequence*/
+ &dbm_as_mapping, /*tp_as_mapping*/
+};
+
+/* ----------------------------------------------------------------- */
+
+static object *
+dbmopen(self, args)
+ object *self;
+ object *args;
+{
+ char *name, *flags;
+ int iflags, mode;
+
+ if ( !getargs(args, "(ssi)", &name, &flags, &mode) )
+ return 0;
+ if ( strcmp(flags, "r") == 0 )
+ iflags = O_RDONLY;
+ else if ( strcmp(flags, "w") == 0 )
+ iflags = O_WRONLY|O_CREAT;
+ else if ( strcmp(flags, "rw") == 0 )
+ iflags = O_RDWR|O_CREAT;
+ else {
+ err_setstr(DbmError,
+ "Flags should be one of 'r', 'w' or 'rw'");
+ return 0;
+ }
+ return newdbmobject(name, iflags, mode);
+}
+
+static struct methodlist dbmmodule_methods[] = {
+ { "open", dbmopen },
+ { 0, 0 },
+};
+
+void
+initdbm() {
+ object *m, *d;
+
+ m = initmodule("dbm", dbmmodule_methods);
+ d = getmoduledict(m);
+ DbmError = newstringobject("dbm.error");
+ if ( DbmError == NULL || dictinsert(d, "error", DbmError) )
+ fatal("can't define dbm.error");
+}
+
+