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36 * $Id: mount.c,v 1.4 2005/02/10 03:33:49 cpressey Exp $
40 #include <sys/param.h>
41 #include <sys/ucred.h>
42 #include <sys/mount.h>
50 #include "libaura/fspred.h"
53 #include "functions.h"
56 compare(const void *a, const void *b)
58 const struct statfs *sa = a;
59 const struct statfs *sb = b;
61 return -strcmp(sa->f_mntonname,
66 * Unmount all mountpoints under a given mountpoint in order (e.g. /var/tmp is
67 * unmounted before /var).
70 unmount_all_under(struct i_fn_args *a, struct commands *cmds, const char *fmt, ...)
72 struct statfs *mt_array;
78 vasprintf(&mtpt, fmt, args);
81 count = getmntinfo(&mt_array, MNT_WAIT);
83 /* Order mount points in reverse lexicographically order. */
84 qsort((void*)mt_array, count, sizeof(struct statfs), compare);
86 for (i = 0; i < count; i++) {
87 if (strncmp(mtpt, mt_array[i].f_mntonname, strlen(mtpt)) != 0)
89 if (strlen(mtpt) > strlen(mt_array[i].f_mntonname))
92 command_add(cmds, "%s%s %s",
93 a->os_root, cmd_name(a, "UMOUNT"), mt_array[i].f_mntonname);