+++ /dev/null
-/*-
- * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $FreeBSD: src/sys/boot/common/load.c,v 1.3 2003/08/25 23:30:41 obrien Exp $
- * $DragonFly: src/sys/boot/common/load.c,v 1.4 2008/09/02 17:21:12 dillon Exp $
- */
-#include <stand.h>
-
-#define LOAD_TINYBUF 2048
-
-/*
- * Attempt to load the file at (path) into an allocated
- * area on the heap, return a pointer to it or NULL
- * on failure.
- *
- * Because in many cases it is impossible to determine the
- * true size of a file without reading it, we do just that.
- */
-char *
-filedup(const char *path, int flags)
-{
- char *buf;
- int fd;
- size_t size, result;
-
- if ((fd = rel_open(path, NULL, F_READ | flags)) == -1)
- return(NULL);
-
- printf("%s open, flags 0x%x\n", path, files[fd].f_flags);
- buf = alloc(LOAD_TINYBUF);
-
- /* Read the first buffer-full */
- size = read(fd, buf, LOAD_TINYBUF);
- if (size < 1) {
- free(buf, LOAD_TINYBUF);
- close(fd);
- return(NULL);
- }
- /* If it all fitted, then just return the buffer straight out */
- if (size < LOAD_TINYBUF) {
- close(fd);
- buf[size] = 0;
- return(buf);
- }
-
- printf("tinybuf loaded, size %d\n", size);
- getchar();
-
-
- /* Read everything until we know how big it is */
- for (;;) {
- result = read(fd, buf, LOAD_TINYBUF);
- if (size == -1) {
- free(buf, LOAD_TINYBUF);
- close(fd);
- return(NULL);
- }
- if (result == 0)
- break;
- size += result;
- }
-
- /* discard the old buffer, close the file */
- free(buf, LOAD_TINYBUF);
- close(fd);
-
- /* reopen the file, realloc the buffer */
- if ((fd = rel_open(path, NULL, F_READ | flags)) == -1)
- return(NULL);
- buf = alloc(size);
- result = read(fd, buf, size);
- close(fd);
- if (result != size) {
- free(buf, size);
- return(NULL);
- }
- return(buf);
-}
-
+++ /dev/null
-/*
- * $NetBSD: pread.c,v 1.2 1997/03/22 01:48:38 thorpej Exp $
- */
-
-/*-
- * Copyright (c) 1996
- * Matthias Drochner. 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 for the NetBSD Project
- * by Matthias Drochner.
- * 4. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
- *
- * $FreeBSD: src/sys/boot/i386/libi386/pread.c,v 1.3 2003/08/25 23:28:31 obrien Exp $
- * $DragonFly: src/sys/boot/pc32/libi386/pread.c,v 1.3 2003/11/10 06:08:36 dillon Exp $
- */
-
-/* read into destination in flat addr space */
-
-#include <stand.h>
-
-#include "libi386.h"
-
-#ifdef SAVE_MEMORY
-#define BUFSIZE (1*1024)
-#else
-#define BUFSIZE (4*1024)
-#endif
-
-static char buf[BUFSIZE];
-
-int
-pread(fd, dest, size)
- int fd;
- vm_offset_t dest;
- int size;
-{
- int rsize;
-
- rsize = size;
- while (rsize > 0) {
- int count, got;
-
- count = (rsize < BUFSIZE ? rsize : BUFSIZE);
-
- got = read(fd, buf, count);
- if (got < 0)
- return (-1);
-
- /* put to physical space */
- vpbcopy(buf, dest, got);
-
- dest += got;
- rsize -= got;
- if (got < count)
- break; /* EOF */
- }
- return (size - rsize);
-}
projects / dragonfly.git / commitdiff