+++ /dev/null
-/* -*-c-*-
- *
- * $Id: mptext-string.c,v 1.5 2004/04/08 01:36:15 mdw Exp $
- *
- * Reading and writing large integers on strings
- *
- * (c) 1999 Straylight/Edgeware
- */
-
-/*----- Licensing notice --------------------------------------------------*
- *
- * This file is part of Catacomb.
- *
- * Catacomb is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Library General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * Catacomb is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with Catacomb; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- */
-
-/*----- Header files ------------------------------------------------------*/
-
-#include <string.h>
-
-#include "mptext.h"
-
-/*----- Main code ---------------------------------------------------------*/
-
-/* --- Operations table --- */
-
-static int get(void *p)
-{
- mptext_stringctx *c = p;
- if (c->buf >= c->lim)
- return (EOF);
- return ((unsigned char)*c->buf++);
-}
-
-static void unget(int ch, void *p)
-{
- mptext_stringctx *c = p;
- if (ch != EOF)
- c->buf--;
-}
-
-static int put(const char *s, size_t sz, void *p)
-{
- mptext_stringctx *c = p;
- int rc = 0;
- if (sz > c->lim - c->buf) {
- sz = c->lim - c->buf;
- rc = EOF;
- }
- if (sz) {
- memcpy(c->buf, s, sz);
- c->buf += sz;
- }
- return (rc);
-}
-
-const mptext_ops mptext_stringops = { get, unget, put };
-
-/* --- Convenience functions --- */
-
-mp *mp_readstring(mp *m, const char *p, char **end, int radix)
-{
- mptext_stringctx c;
- c.buf = (/*unconst */ char *)p;
- c.lim = c.buf + strlen(p);
- m = mp_read(m, radix, &mptext_stringops, &c);
- if (end)
- *end = c.buf;
- return (m);
-}
-
-int mp_writestring(mp *m, char *p, size_t sz, int radix)
-{
- mptext_stringctx c;
- int rc;
- if (!sz)
- return (0);
- c.buf = p;
- c.lim = p + sz - 1;
- rc = mp_write(m, radix, &mptext_stringops, &c);
- *c.buf = 0;
- return (rc);
-}
-
-/*----- That's all, folks -------------------------------------------------*/