lib/libutil/quotafile.c

117 	struct quotafile *qf;
124 	if ((qf = calloc(1, sizeof(*qf))) == NULL)
126 	qf->fd = -1;
127 	qf->quotatype = quotatype;
128 	strlcpy(qf->fsname, fs->fs_file, sizeof(qf->fsname));
129 	if (stat(qf->fsname, &st) != 0)
131 	qf->dev = st.st_dev;
135 	 * On UFS, hasquota() fills in qf->qfname. But we only care about
139 		serrno = hasquota(fs, quotatype, qf->qfname,
140 		    sizeof(qf->qfname));
142 	if (quotactl(qf->fsname, qcmd, 0, &qf->wordsize) == 0)
143 		return (qf);
151 	qf->accmode = openflags & O_ACCMODE;
152 	if ((qf->fd = open(qf->qfname, qf->accmode|O_CLOEXEC)) < 0 &&
156 	if (qf->fd != -1) {
157 		qf->wordsize = 32;
158 		switch (read(qf->fd, &dqh, sizeof(dqh))) {
164 				qf->wordsize = 32;
165 				return (qf);
174 			qf->wordsize = 64;
175 			return (qf);
177 			qf->wordsize = 32;
178 			return (qf);
183 	if ((qf->fd = open(qf->qfname, O_RDWR|O_CREAT|O_TRUNC|O_CLOEXEC, 0)) <
186 	qf->wordsize = 64;
192 	if (write(qf->fd, &dqh, sizeof(dqh)) != sizeof(dqh)) {
194 		unlink(qf->qfname);
198 	fchown(qf->fd, 0, grp ? grp->gr_gid : 0);
199 	fchmod(qf->fd, 0640);
200 	return (qf);
204 	if (qf->fd != -1)
205 		close(qf->fd);
206 	free(qf);
212 quota_close(struct quotafile *qf)
215 	if (qf->fd != -1)
216 		close(qf->fd);
217 	free(qf);
221 quota_on(struct quotafile *qf)
225 	qcmd = QCMD(Q_QUOTAON, qf->quotatype);
226 	return (quotactl(qf->fsname, qcmd, 0, qf->qfname));
230 quota_off(struct quotafile *qf)
233 	return (quotactl(qf->fsname, QCMD(Q_QUOTAOFF, qf->quotatype), 0, 0));
237 quota_fsname(const struct quotafile *qf)
240 	return (qf->fsname);
244 quota_qfname(const struct quotafile *qf)
247 	return (qf->qfname);
251 quota_check_path(const struct quotafile *qf, const char *path)
257 	return (st.st_dev == qf->dev);
261 quota_maxid(struct quotafile *qf)
266 	if (stat(qf->qfname, &st) < 0)
268 	switch (qf->wordsize) {
283 quota_read32(struct quotafile *qf, struct dqblk *dqb, int id)
289 	if (lseek(qf->fd, off, SEEK_SET) == -1)
291 	switch (read(qf->fd, &dqb32, sizeof(dqb32))) {
311 quota_read64(struct quotafile *qf, struct dqblk *dqb, int id)
317 	if (lseek(qf->fd, off, SEEK_SET) == -1)
319 	switch (read(qf->fd, &dqb64, sizeof(dqb64))) {
339 quota_read(struct quotafile *qf, struct dqblk *dqb, int id)
343 	if (qf->fd == -1) {
344 		qcmd = QCMD(Q_GETQUOTA, qf->quotatype);
345 		return (quotactl(qf->fsname, qcmd, id, dqb));
347 	switch (qf->wordsize) {
349 		return (quota_read32(qf, dqb, id));
351 		return (quota_read64(qf, dqb, id));
362 quota_write32(struct quotafile *qf, const struct dqblk *dqb, int id)
377 	if (lseek(qf->fd, off, SEEK_SET) == -1)
379 	if (write(qf->fd, &dqb32, sizeof(dqb32)) == sizeof(dqb32))
385 quota_write64(struct quotafile *qf, const struct dqblk *dqb, int id)
400 	if (lseek(qf->fd, off, SEEK_SET) == -1)
402 	if (write(qf->fd, &dqb64, sizeof(dqb64)) == sizeof(dqb64))
408 quota_write_usage(struct quotafile *qf, struct dqblk *dqb, int id)
413 	if (qf->fd == -1) {
414 		qcmd = QCMD(Q_SETUSE, qf->quotatype);
415 		return (quotactl(qf->fsname, qcmd, id, dqb));
420 	if ((qf->accmode & O_RDWR) != O_RDWR) {
424 	if (quota_read(qf, &dqbuf, id) != 0)
443 	switch (qf->wordsize) {
445 		return (quota_write32(qf, &dqbuf, id));
447 		return (quota_write64(qf, &dqbuf, id));
456 quota_write_limits(struct quotafile *qf, struct dqblk *dqb, int id)
461 	if (qf->fd == -1) {
462 		qcmd = QCMD(Q_SETQUOTA, qf->quotatype);
463 		return (quotactl(qf->fsname, qcmd, id, dqb));
468 	if ((qf->accmode & O_RDWR) != O_RDWR) {
472 	if (quota_read(qf, &dqbuf, id) != 0)
501 	switch (qf->wordsize) {
503 		return (quota_write32(qf, dqb, id));
505 		return (quota_write64(qf, dqb, id));
517 quota_convert(struct quotafile *qf, int wordsize)
529 	if ((qf->accmode & O_RDWR) != O_RDWR || qf->fd == -1) {
534 	     wordsize == qf->wordsize) {
538 	maxid = quota_maxid(qf);
539 	if ((newqf = calloc(1, sizeof(*qf))) == NULL) {
543 	*newqf = *qf;
544 	snprintf(newqf->qfname, MAXPATHLEN + 1, "%s_%d.orig", qf->qfname,
545 	    qf->wordsize);
546 	if (rename(qf->qfname, newqf->qfname) < 0) {
550 	if ((newqf->fd = open(qf->qfname, O_RDWR|O_CREAT|O_TRUNC|O_CLOEXEC,
571 		if ((quota_read(qf, &dqblk, id)) < 0)
595 	fd = qf->fd;
596 	qf->fd = newqf->fd;
598 	qf->wordsize = newqf->wordsize;
603 	(void) rename(newqf->qfname, qf->qfname);