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 6.3 (Berkeley) 06/01/90"; 10 #endif /* LIBC_SCCS and not lint */ 11 12 #include <sys/types.h> 13 #include <sys/mount.h> 14 15 /* 16 * Return information about mounted filesystems. 17 */ 18 int 19 getmntinfo(mntbufp, flags) 20 struct statfs **mntbufp; 21 int flags; 22 { 23 static struct statfs *mntbuf; 24 static int mntsize, bufsize; 25 26 if (mntsize <= 0 && (mntsize = getfsstat(0, 0, MNT_NOWAIT)) < 0) 27 return (0); 28 if (bufsize > 0 && (mntsize = getfsstat(mntbuf, bufsize, flags)) < 0) 29 return (0); 30 while (bufsize <= mntsize * sizeof(struct statfs)) { 31 if (mntbuf) 32 free(mntbuf); 33 bufsize = (mntsize + 1) * sizeof(struct statfs); 34 if ((mntbuf = (struct statfs *)malloc(bufsize)) == 0) 35 return (0); 36 if ((mntsize = getfsstat(mntbuf, bufsize, flags)) < 0) 37 return (0); 38 } 39 *mntbufp = mntbuf; 40 return (mntsize); 41 } 42