diff options
| -rw-r--r-- | sys/opencrypto/crmbuf.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/sys/opencrypto/crmbuf.c b/sys/opencrypto/crmbuf.c deleted file mode 100644 index ca80c11..0000000 --- a/sys/opencrypto/crmbuf.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (c) 2002 Somebody. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "opt_param.h" -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#include <sys/kernel.h> - -/* - * Miscellaneous mbuf routines that belong in uipc_mbuf.c but - * are kept private to the crypto support for now. - */ -extern int m_apply(struct mbuf *m, int off, int len, - int (*f)(caddr_t, caddr_t, unsigned int), caddr_t fstate); -extern struct mbuf * m_getptr(struct mbuf *m, int loc, int *off); - -/* - * Apply function f to the data in an mbuf chain starting "off" bytes from the - * beginning, continuing for "len" bytes. - */ -int -m_apply(struct mbuf *m, int off, int len, int (*f)(caddr_t, caddr_t, unsigned int), caddr_t fstate) -{ - int rval; - unsigned int count; - - if (len < 0) - panic("m_apply: len %d < 0", len); - if (off < 0) - panic("m_apply: off %d < 0", off); - while (off > 0) { - if (m == NULL) - panic("m_apply: null mbuf in skip"); - if (off < m->m_len) - break; - off -= m->m_len; - m = m->m_next; - } - while (len > 0) { - if (m == NULL) - panic("m_apply: null mbuf"); - count = min(m->m_len - off, len); - - rval = f(fstate, mtod(m, caddr_t) + off, count); - if (rval) - return (rval); - - len -= count; - off = 0; - m = m->m_next; - } - - return (0); -} - -/* - * Return a pointer to mbuf/offset of location in mbuf chain. - */ -struct mbuf * -m_getptr(struct mbuf *m, int loc, int *off) -{ - while (loc >= 0) { - /* Normal end of search */ - if (m->m_len > loc) { - *off = loc; - return (m); - } - else { - loc -= m->m_len; - - if (m->m_next == NULL) { - if (loc == 0) { - /* Point at the end of valid data */ - *off = m->m_len; - return (m); - } - else - return (NULL); - } - else - m = m->m_next; - } - } - - return (NULL); -} |
