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/*
*
* Utility for converting quota file from old to new format
*
* Sponsored by SuSE CR
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <asm/byteorder.h>
#include "pot.h"
#include "common.h"
#include "quotaio.h"
#include "quotasys.h"
#include "quota.h"
#include "bylabel.h"
char *mntpoint;
char *progname;
int ucv, gcv;
struct quota_handle *qn; /* Handle of new file */
static void usage(void)
{
errstr(_("Utility for converting quota files.\nUsage:\n\t%s [-u] [-g] mountpoint\n"), progname);
errstr(_("Bugs to %s\n"), MY_EMAIL);
exit(1);
}
void parse_options(int argcnt, char **argstr)
{
int ret;
char *slash = strrchr(argstr[0], '/'), cmdname[PATH_MAX];
if (!slash)
slash = argstr[0];
else
slash++;
sstrncpy(cmdname, slash, sizeof(cmdname));
while ((ret = getopt(argcnt, argstr, "Vugh:")) != -1) {
switch (ret) {
case '?':
case 'h':
usage();
case 'V':
version();
exit(0);
case 'u':
ucv = 1;
break;
case 'g':
gcv = 1;
break;
}
}
if (optind + 1 != argcnt) {
puts(_("Bad number of arguments."));
usage();
}
if (!(ucv | gcv))
ucv = 1;
mntpoint = argstr[optind];
}
int convert_dquot(struct dquot *dquot, char *name)
{
struct dquot newdquot;
memset(&newdquot, 0, sizeof(newdquot));
newdquot.dq_id = dquot->dq_id;
newdquot.dq_h = qn;
newdquot.dq_dqb.dqb_ihardlimit = dquot->dq_dqb.dqb_ihardlimit;
newdquot.dq_dqb.dqb_isoftlimit = dquot->dq_dqb.dqb_isoftlimit;
newdquot.dq_dqb.dqb_curinodes = dquot->dq_dqb.dqb_curinodes;
newdquot.dq_dqb.dqb_bhardlimit = dquot->dq_dqb.dqb_bhardlimit;
newdquot.dq_dqb.dqb_bsoftlimit = dquot->dq_dqb.dqb_bsoftlimit;
newdquot.dq_dqb.dqb_curspace = dquot->dq_dqb.dqb_curspace;
newdquot.dq_dqb.dqb_btime = dquot->dq_dqb.dqb_btime;
newdquot.dq_dqb.dqb_itime = dquot->dq_dqb.dqb_itime;
if (qn->qh_ops->commit_dquot(&newdquot) < 0) {
errstr(_("Can't commit dquot for id %u (%s): %s\n"),
(uint)dquot->dq_id, name, strerror(errno));
return -1;
}
return 0;
}
void convert_file(int type)
{
struct quota_handle *qo;
char *qfname, namebuf[PATH_MAX];
FILE *mntf;
struct mntent *mnt;
const char *dev;
if (!(mntf = setmntent(MOUNTED, "r")))
die(2, _("Can't open %s: %s\n"), MOUNTED, strerror(errno));
while ((mnt = getmntent(mntf))) {
if (!(dev = get_device_name(mnt->mnt_fsname)))
continue;
if (devcmp(dev, mntpoint) || dircmp(mnt->mnt_dir, mntpoint)) {
free((void *)dev);
break;
}
free((void *)dev);
}
if (!mnt)
die(1, _("Can't find given mountpoint %s\n"), mntpoint);
if (!(qo = init_io(mnt, type, QF_VFSOLD, 1))) {
errstr(_("Can't open old format file for %ss on %s\n"),
type2name(type), mntpoint);
return;
}
if (!(qn = new_io(mnt, type, QF_VFSV0))) {
errstr(_("Can't create file for %ss for new format on %s: %s\n"),
type2name(type), mntpoint, strerror(errno));
end_io(qo);
return;
}
if (qo->qh_ops->scan_dquots(qo, convert_dquot) >= 0) { /* Conversion succeeded? */
qfname = get_qf_name(mnt, type, QF_VFSV0);
strcpy(namebuf, qfname);
sstrncat(namebuf, ".new", sizeof(namebuf));
if (rename(namebuf, qfname) < 0)
errstr(_("Can't rename new quotafile %s to name %s: %s\n"),
namebuf, qfname, strerror(errno));
free(qfname);
}
endmntent(mntf);
end_io(qo);
end_io(qn);
}
int main(int argc, char **argv)
{
gettexton();
progname = basename(argv[0]);
parse_options(argc, argv);
if (ucv)
convert_file(USRQUOTA);
if (ucv)
convert_file(GRPQUOTA);
return 0;
}
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