1 /* 2 * Copyright (c) 1989 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #if defined(LIBC_SCCS) && !defined(lint) 9 static char sccsid[] = "@(#)getmntinfo.c 6.4 (Berkeley) 02/23/91"; 10 #endif /* LIBC_SCCS and not lint */ 11 12 #include <sys/types.h> 13 #include <sys/mount.h> 14 #include <stdlib.h> 15 16 /* 17 * Return information about mounted filesystems. 18 */ 19 int 20 getmntinfo(mntbufp, flags) 21 struct statfs **mntbufp; 22 int flags; 23 { 24 static struct statfs *mntbuf; 25 static int mntsize; 26 static long bufsize; 27 28 if (mntsize <= 0 && (mntsize = getfsstat(0, 0, MNT_NOWAIT)) < 0) 29 return (0); 30 if (bufsize > 0 && (mntsize = getfsstat(mntbuf, bufsize, flags)) < 0) 31 return (0); 32 while (bufsize <= mntsize * sizeof(struct statfs)) { 33 if (mntbuf) 34 free(mntbuf); 35 bufsize = (mntsize + 1) * sizeof(struct statfs); 36 if ((mntbuf = (struct statfs *)malloc(bufsize)) == 0) 37 return (0); 38 if ((mntsize = getfsstat(mntbuf, bufsize, flags)) < 0) 39 return (0); 40 } 41 *mntbufp = mntbuf; 42 return (mntsize); 43 } 44