/* getmountlist.c - Get a linked list of mount points, with stat information. * * Copyright 2006 Rob Landley <rob@landley.net> */ #include "toys.h" #include <mntent.h> // Get list of mounted filesystems, including stat and statvfs info. // Returns a reversed list, which is good for finding overmounts and such. struct mtab_list *xgetmountlist(char *path) { struct mtab_list *mtlist = 0, *mt; struct mntent *me; FILE *fp; char *p = path ? path : "/proc/mounts"; if (!(fp = setmntent(p, "r"))) perror_exit("bad %s", p); // The "test" part of the loop is done before the first time through and // again after each "increment", so putting the actual load there avoids // duplicating it. If the load was NULL, the loop stops. while ((me = getmntent(fp))) { mt = xzalloc(sizeof(struct mtab_list) + strlen(me->mnt_fsname) + strlen(me->mnt_dir) + strlen(me->mnt_type) + strlen(me->mnt_opts) + 4); dlist_add_nomalloc((void *)&mtlist, (void *)mt); // Collect details about mounted filesystem // Don't report errors, just leave data zeroed if (!path) { stat(me->mnt_dir, &(mt->stat)); statvfs(me->mnt_dir, &(mt->statvfs)); } // Remember information from /proc/mounts mt->dir = stpcpy(mt->type, me->mnt_type)+1; mt->device = stpcpy(mt->dir, me->mnt_dir)+1; mt->opts = stpcpy(mt->device, me->mnt_fsname)+1; strcpy(mt->opts, me->mnt_opts); } endmntent(fp); return mtlist; }