1 files changed, 68 insertions, 0 deletions
diff --git a/lib/ss/request_tbl.c b/lib/ss/request_tbl.c
new file mode 100644
index 0000000..135cb28
--- /dev/null
+++ b/lib/ss/request_tbl.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright 1987, 1988 by MIT Student Information Processing Board
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose is hereby granted, provided that
+ * the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  M.I.T. and the
+ * M.I.T. S.I.P.B. make no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without
+ * express or implied warranty.
+ */
+
+#include "config.h"
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
+#include "ss_internal.h"
+
+#define ssrt ss_request_table	/* for some readable code... */
+
+void ss_add_request_table(int sci_idx, ssrt *rqtbl_ptr, int position, int *code_ptr)
+{
+	register ss_data *info;
+	register int i, size;
+	ssrt **t;
+
+	info = ss_info(sci_idx);
+	for (size=0; info->rqt_tables[size] != (ssrt *)NULL; size++)
+		;
+	/* size == C subscript of NULL == #elements */
+	size += 2;		/* new element, and NULL */
+	t = (ssrt **)realloc(info->rqt_tables, (unsigned)size*sizeof(ssrt *));
+	if (t == (ssrt **)NULL) {
+		*code_ptr = errno;
+		return;
+	}
+	info->rqt_tables = t;
+	if (position > size - 2)
+		position = size - 2;
+
+	if (size > 1)
+		for (i = size - 2; i >= position; i--)
+			info->rqt_tables[i+1] = info->rqt_tables[i];
+
+	info->rqt_tables[position] = rqtbl_ptr;
+	info->rqt_tables[size-1] = (ssrt *)NULL;
+	*code_ptr = 0;
+}
+
+void ss_delete_request_table(int sci_idx, ssrt *rqtbl_ptr, int *code_ptr)
+{
+     register ss_data *info;
+     register ssrt **rt1, **rt2;
+
+     *code_ptr = SS_ET_TABLE_NOT_FOUND;
+     info = ss_info(sci_idx);
+     rt1 = info->rqt_tables;
+     for (rt2 = rt1; *rt1; rt1++) {
+	  if (*rt1 != rqtbl_ptr) {
+	       *rt2++ = *rt1;
+	       *code_ptr = 0;
+	  }
+     }
+     *rt2 = (ssrt *)NULL;
+     return;
+}