source: MondoRescue/branches/2.2.5/mindi-busybox/libbb/match_fstype.c@ 1765

/* vi: set sw=4 ts=4: */
/*
 * Match fstypes for use in mount unmount
 * We accept notmpfs,nfs but not notmpfs,nonfs
 * This allows us to match fstypes that start with no like so
 *   mount -at ,noddy
 *
 * Returns 0 for a match, otherwise -1
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include "libbb.h"

int match_fstype(const struct mntent *mt, const char *fstype)
{
    int no = 0;
    int len;

    if (!mt)
        return -1;

    if (!fstype)
        return 0;

    if (fstype[0] == 'n' && fstype[1] == 'o') {
        no = -1;
        fstype += 2;
    }

    len = strlen(mt->mnt_type);
    while (fstype) {
        if (!strncmp(mt->mnt_type, fstype, len)
         && (!fstype[len] || fstype[len] == ',')
        ) {
            return no;
        }
        fstype = strchr(fstype, ',');
        if (fstype)
            fstype++;
    }

    return -(no + 1);
}