world: Mark utilities that use out of bounds copies.
[dragonfly.git] / sbin / hammer2 / cmd_bulkfree.c
blob702962793fe39519cfed40292b98d3f76abc79c2
1 /*
2 * Copyright (c) 2015 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@dragonflybsd.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
35 #include "hammer2.h"
37 int
38 cmd_bulkfree(const char *sel_path)
40 hammer2_ioc_bulkfree_t bfi;
41 int ecode;
42 int fd;
43 int res;
44 size_t usermem;
45 size_t usermem_size = sizeof(usermem);
47 bzero(&bfi, sizeof(bfi));
48 usermem = 0;
49 if (sysctlbyname("hw.usermem", &usermem, &usermem_size, NULL, 0) == 0)
50 bfi.size = usermem / 16;
51 else
52 bfi.size = 0;
53 if (bfi.size < 8192 * 1024)
54 bfi.size = 8192 * 1024;
56 if ((fd = hammer2_ioctl_handle(sel_path)) < 0)
57 return 1;
58 res = ioctl(fd, HAMMER2IOC_BULKFREE_SCAN, &bfi);
59 if (res) {
60 perror("ioctl");
61 ecode = 1;
63 ecode = 0;
64 return ecode;
67 #if 0
68 int
69 cmd_bulkfree_async(const char *sel_path)
71 hammer2_ioc_bulkfree_t bfi;
72 int ecode;
73 int fd;
74 int res;
76 bzero(&bfi, sizeof(bfi));
77 bfi.size = 8192 * 1024;
79 if ((fd = hammer2_ioctl_handle(sel_path)) < 0)
80 return 1;
81 res = ioctl(fd, HAMMER2IOC_BULKFREE_ASYNC, &bfi);
82 if (res) {
83 perror("ioctl");
84 ecode = 1;
86 ecode = 0;
87 return ecode;
89 #endif