1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if defined(LIBC_SCCS) && !defined(lint) 31 static char sccsid[] = "@(#)getmntinfo.c 8.1 (Berkeley) 6/4/93"; 32 #endif /* LIBC_SCCS and not lint */ 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <sys/param.h> 37 #include <sys/ucred.h> 38 #define _WANT_FREEBSD11_STATFS 39 #include <sys/mount.h> 40 #include <stdlib.h> 41 #include "gen-compat.h" 42 43 /* 44 * Return information about mounted filesystems. 45 */ 46 int 47 freebsd11_getmntinfo(struct freebsd11_statfs **mntbufp, int flags) 48 { 49 static struct freebsd11_statfs *mntbuf; 50 static int mntsize; 51 static long bufsize; 52 53 if (mntsize <= 0 && 54 (mntsize = freebsd11_getfsstat(0, 0, MNT_NOWAIT)) < 0) 55 return (0); 56 if (bufsize > 0 && 57 (mntsize = freebsd11_getfsstat(mntbuf, bufsize, flags)) < 0) 58 return (0); 59 while (bufsize <= mntsize * sizeof(struct freebsd11_statfs)) { 60 if (mntbuf) 61 free(mntbuf); 62 bufsize = (mntsize + 1) * sizeof(struct freebsd11_statfs); 63 if ((mntbuf = (struct freebsd11_statfs *)malloc(bufsize)) == 0) 64 return (0); 65 if ((mntsize = freebsd11_getfsstat(mntbuf, bufsize, flags)) < 0) 66 return (0); 67 } 68 *mntbufp = mntbuf; 69 return (mntsize); 70 } 71 72 __sym_compat(getmntinfo, freebsd11_getmntinfo, FBSD_1.0); 73