1 /*- 2 * Copyright (c) 2017 M. Warner Losh <[email protected]> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 #include "namespace.h" 30 #include <sys/param.h> 31 #include "compat-ino64.h" 32 #include <sys/errno.h> 33 #include <sys/syscall.h> 34 #include <stdlib.h> 35 #include <unistd.h> 36 37 #include "libc_private.h" 38 39 int 40 getfsstat(struct statfs *buf, long bufsize, int flags) 41 { 42 struct freebsd11_statfs *statfs11 = NULL; 43 ssize_t len = 0; 44 int rv, i; 45 46 if (__getosreldate() >= INO64_FIRST) 47 return (__sys_getfsstat(buf, bufsize, flags)); 48 if (buf != NULL) { 49 len = sizeof(struct freebsd11_statfs) * /* Round down on purpose to avoid */ 50 (bufsize / sizeof(struct statfs)); /* overflow on translation. */ 51 statfs11 = malloc(len); 52 if (statfs11 == NULL) { 53 errno = ENOMEM; 54 return (-1); 55 } 56 } 57 rv = syscall(SYS_freebsd11_getfsstat, statfs11, len, flags); 58 if (rv != -1 && buf != NULL) { 59 for (i = 0; i < rv; i++) 60 __statfs11_to_statfs(&statfs11[i], &buf[i]); 61 } 62 free(statfs11); 63 return (rv); 64 } 65