698 lines
17 KiB
C
698 lines
17 KiB
C
/*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1980, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Robert Elz at The University of Melbourne.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1980, 1990, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif
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#ifndef lint
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static const char sccsid[] = "from: @(#)quota.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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/*
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* Disk quota reporting program.
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <sys/socket.h>
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#include <rpc/rpc.h>
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#include <rpc/pmap_prot.h>
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#include <rpcsvc/rquota.h>
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#include <ufs/ufs/quota.h>
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#include <ctype.h>
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#include <err.h>
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#include <fstab.h>
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#include <grp.h>
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#include <libutil.h>
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#include <netdb.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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static const char *qfextension[] = INITQFNAMES;
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struct quotause {
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struct quotause *next;
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long flags;
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struct dqblk dqblk;
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char fsname[MAXPATHLEN + 1];
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};
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static char *timeprt(int64_t seconds);
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static struct quotause *getprivs(long id, int quotatype);
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static void usage(void) __dead2;
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static int showuid(u_long uid);
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static int showgid(u_long gid);
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static int showusrname(char *name);
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static int showgrpname(char *name);
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static int showquotas(int type, u_long id, const char *name);
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static void showrawquotas(int type, u_long id, struct quotause *qup);
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static void heading(int type, u_long id, const char *name, const char *tag);
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static int getufsquota(struct fstab *fs, struct quotause *qup, long id,
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int quotatype);
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static int getnfsquota(struct statfs *fst, struct quotause *qup, long id,
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int quotatype);
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static enum clnt_stat callaurpc(char *host, int prognum, int versnum, int procnum,
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xdrproc_t inproc, char *in, xdrproc_t outproc, char *out);
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static int alldigits(char *s);
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static int hflag;
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static int lflag;
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static int rflag;
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static int qflag;
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static int vflag;
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static char *filename = NULL;
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int
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main(int argc, char *argv[])
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{
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int ngroups;
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gid_t mygid, gidset[NGROUPS];
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int i, ch, gflag = 0, uflag = 0, errflag = 0;
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while ((ch = getopt(argc, argv, "f:ghlrquv")) != -1) {
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switch(ch) {
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case 'f':
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filename = optarg;
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break;
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case 'g':
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gflag++;
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break;
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case 'h':
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hflag++;
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break;
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case 'l':
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lflag++;
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break;
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case 'q':
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qflag++;
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break;
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case 'r':
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rflag++;
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break;
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case 'u':
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uflag++;
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break;
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case 'v':
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vflag++;
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (!uflag && !gflag)
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uflag++;
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if (argc == 0) {
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if (uflag)
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errflag += showuid(getuid());
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if (gflag) {
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mygid = getgid();
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ngroups = getgroups(NGROUPS, gidset);
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if (ngroups < 0)
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err(1, "getgroups");
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errflag += showgid(mygid);
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for (i = 0; i < ngroups; i++)
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if (gidset[i] != mygid)
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errflag += showgid(gidset[i]);
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}
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return(errflag);
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}
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if (uflag && gflag)
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usage();
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if (uflag) {
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for (; argc > 0; argc--, argv++) {
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if (alldigits(*argv))
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errflag += showuid(atoi(*argv));
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else
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errflag += showusrname(*argv);
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}
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return(errflag);
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}
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if (gflag) {
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for (; argc > 0; argc--, argv++) {
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if (alldigits(*argv))
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errflag += showgid(atoi(*argv));
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else
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errflag += showgrpname(*argv);
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}
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}
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return(errflag);
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}
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static void
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usage(void)
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{
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fprintf(stderr, "%s\n%s\n%s\n",
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"usage: quota [-ghlu] [-f path] [-v | -q | -r]",
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" quota [-hlu] [-f path] [-v | -q | -r] user ...",
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" quota -g [-hl] [-f path] [-v | -q | -r] group ...");
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exit(1);
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}
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/*
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* Print out quotas for a specified user identifier.
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*/
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static int
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showuid(u_long uid)
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{
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struct passwd *pwd = getpwuid(uid);
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const char *name;
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if (pwd == NULL)
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name = "(no account)";
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else
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name = pwd->pw_name;
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return(showquotas(USRQUOTA, uid, name));
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}
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/*
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* Print out quotas for a specified user name.
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*/
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static int
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showusrname(char *name)
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{
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struct passwd *pwd = getpwnam(name);
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if (pwd == NULL) {
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warnx("%s: unknown user", name);
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return(1);
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}
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return(showquotas(USRQUOTA, pwd->pw_uid, name));
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}
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/*
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* Print out quotas for a specified group identifier.
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*/
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static int
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showgid(u_long gid)
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{
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struct group *grp = getgrgid(gid);
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const char *name;
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if (grp == NULL)
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name = "(no entry)";
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else
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name = grp->gr_name;
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return(showquotas(GRPQUOTA, gid, name));
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}
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/*
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* Print out quotas for a specified group name.
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*/
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static int
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showgrpname(char *name)
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{
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struct group *grp = getgrnam(name);
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if (grp == NULL) {
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warnx("%s: unknown group", name);
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return(1);
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}
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return(showquotas(GRPQUOTA, grp->gr_gid, name));
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}
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static void
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prthumanval(int len, u_int64_t bytes)
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{
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char buf[len + 1];
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/*
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* Limit the width to 5 bytes as that is what users expect.
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*/
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humanize_number(buf, MIN(sizeof(buf), 5), bytes, "",
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HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
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(void)printf(" %*s", len, buf);
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}
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static int
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showquotas(int type, u_long id, const char *name)
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{
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struct quotause *qup;
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struct quotause *quplist;
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const char *msgi, *msgb;
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const char *nam;
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char *bgrace = NULL, *igrace = NULL;
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int lines = 0, overquota = 0;
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static time_t now;
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if (now == 0)
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time(&now);
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quplist = getprivs(id, type);
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for (qup = quplist; qup; qup = qup->next) {
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msgi = NULL;
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if (qup->dqblk.dqb_ihardlimit &&
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qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_ihardlimit) {
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overquota++;
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msgi = "File limit reached on";
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}
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else if (qup->dqblk.dqb_isoftlimit &&
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qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_isoftlimit) {
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overquota++;
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if (qup->dqblk.dqb_itime > now)
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msgi = "In file grace period on";
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else
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msgi = "Over file quota on";
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}
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msgb = NULL;
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if (qup->dqblk.dqb_bhardlimit &&
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qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bhardlimit) {
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overquota++;
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msgb = "Block limit reached on";
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}
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else if (qup->dqblk.dqb_bsoftlimit &&
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qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit) {
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overquota++;
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if (qup->dqblk.dqb_btime > now)
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msgb = "In block grace period on";
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else
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msgb = "Over block quota on";
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}
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if (rflag) {
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showrawquotas(type, id, qup);
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continue;
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}
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if (!vflag &&
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qup->dqblk.dqb_isoftlimit == 0 &&
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qup->dqblk.dqb_ihardlimit == 0 &&
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qup->dqblk.dqb_bsoftlimit == 0 &&
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qup->dqblk.dqb_bhardlimit == 0)
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continue;
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if (qflag) {
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if ((msgi != NULL || msgb != NULL) &&
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lines++ == 0)
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heading(type, id, name, "");
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if (msgi != NULL)
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printf("\t%s %s\n", msgi, qup->fsname);
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if (msgb != NULL)
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printf("\t%s %s\n", msgb, qup->fsname);
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continue;
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}
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if (!vflag &&
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qup->dqblk.dqb_curblocks == 0 &&
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qup->dqblk.dqb_curinodes == 0)
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continue;
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if (lines++ == 0)
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heading(type, id, name, "");
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nam = qup->fsname;
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if (strlen(qup->fsname) > 15) {
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printf("%s\n", qup->fsname);
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nam = "";
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}
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printf("%-15s", nam);
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if (hflag) {
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prthumanval(7, dbtob(qup->dqblk.dqb_curblocks));
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printf("%c", (msgb == NULL) ? ' ' : '*');
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prthumanval(7, dbtob(qup->dqblk.dqb_bsoftlimit));
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prthumanval(7, dbtob(qup->dqblk.dqb_bhardlimit));
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} else {
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printf(" %7ju%c %7ju %7ju",
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(uintmax_t)dbtob(qup->dqblk.dqb_curblocks)
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/ 1024,
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(msgb == NULL) ? ' ' : '*',
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(uintmax_t)dbtob(qup->dqblk.dqb_bsoftlimit)
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/ 1024,
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(uintmax_t)dbtob(qup->dqblk.dqb_bhardlimit)
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/ 1024);
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}
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if (msgb != NULL)
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bgrace = timeprt(qup->dqblk.dqb_btime);
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if (msgi != NULL)
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igrace = timeprt(qup->dqblk.dqb_itime);
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printf("%8s %6ju%c %6ju %6ju%8s\n"
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, (msgb == NULL) ? "" : bgrace
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, (uintmax_t)qup->dqblk.dqb_curinodes
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, (msgi == NULL) ? ' ' : '*'
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, (uintmax_t)qup->dqblk.dqb_isoftlimit
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, (uintmax_t)qup->dqblk.dqb_ihardlimit
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, (msgi == NULL) ? "" : igrace
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);
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if (msgb != NULL)
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free(bgrace);
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if (msgi != NULL)
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free(igrace);
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}
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if (!qflag && !rflag && lines == 0)
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heading(type, id, name, "none");
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return (overquota);
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}
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static void
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showrawquotas(int type, u_long id, struct quotause *qup)
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{
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time_t t;
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printf("Raw %s quota information for id %lu on %s\n",
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type == USRQUOTA ? "user" : "group", id, qup->fsname);
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printf("block hard limit: %ju\n",
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(uintmax_t)qup->dqblk.dqb_bhardlimit);
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printf("block soft limit: %ju\n",
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(uintmax_t)qup->dqblk.dqb_bsoftlimit);
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printf("current block count: %ju\n",
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(uintmax_t)qup->dqblk.dqb_curblocks);
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printf("i-node hard limit: %ju\n",
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(uintmax_t)qup->dqblk.dqb_ihardlimit);
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printf("i-node soft limit: %ju\n",
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(uintmax_t)qup->dqblk.dqb_isoftlimit);
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printf("current i-node count: %ju\n",
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(uintmax_t)qup->dqblk.dqb_curinodes);
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printf("block grace time: %jd",
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(intmax_t)qup->dqblk.dqb_btime);
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if (qup->dqblk.dqb_btime != 0) {
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t = qup->dqblk.dqb_btime;
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printf(" %s", ctime(&t));
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} else {
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printf("\n");
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}
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printf("i-node grace time: %jd", (intmax_t)qup->dqblk.dqb_itime);
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if (qup->dqblk.dqb_itime != 0) {
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t = qup->dqblk.dqb_itime;
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printf(" %s", ctime(&t));
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} else {
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printf("\n");
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}
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}
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static void
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heading(int type, u_long id, const char *name, const char *tag)
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{
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printf("Disk quotas for %s %s (%cid %lu): %s\n", qfextension[type],
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name, *qfextension[type], id, tag);
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if (!qflag && tag[0] == '\0') {
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printf("%-15s %7s %8s %7s %7s %6s %7s %6s%8s\n"
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, "Filesystem"
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, "usage"
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, "quota"
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, "limit"
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, "grace"
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, "files"
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, "quota"
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, "limit"
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, "grace"
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);
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}
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}
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/*
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* Calculate the grace period and return a printable string for it.
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*/
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static char *
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timeprt(int64_t seconds)
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{
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time_t hours, minutes;
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char *buf;
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static time_t now;
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if (now == 0)
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time(&now);
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if (now > seconds) {
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if ((buf = strdup("none")) == NULL)
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errx(1, "strdup() failed in timeprt()");
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return (buf);
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}
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seconds -= now;
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minutes = (seconds + 30) / 60;
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hours = (minutes + 30) / 60;
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if (hours >= 36) {
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if (asprintf(&buf, "%lddays", ((long)hours + 12) / 24) < 0)
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errx(1, "asprintf() failed in timeprt(1)");
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return (buf);
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}
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if (minutes >= 60) {
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if (asprintf(&buf, "%2ld:%ld", (long)minutes / 60,
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(long)minutes % 60) < 0)
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errx(1, "asprintf() failed in timeprt(2)");
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return (buf);
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}
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if (asprintf(&buf, "%2ld", (long)minutes) < 0)
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errx(1, "asprintf() failed in timeprt(3)");
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return (buf);
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}
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/*
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* Collect the requested quota information.
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*/
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static struct quotause *
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getprivs(long id, int quotatype)
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{
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struct quotause *qup, *quptail = NULL;
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struct fstab *fs;
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struct quotause *quphead;
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struct statfs *fst;
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int nfst, i;
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struct statfs sfb;
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qup = quphead = (struct quotause *)0;
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if (filename != NULL && statfs(filename, &sfb) != 0)
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err(1, "cannot statfs %s", filename);
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nfst = getmntinfo(&fst, MNT_NOWAIT);
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if (nfst == 0)
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errx(2, "no filesystems mounted!");
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setfsent();
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for (i = 0; i < nfst; i++) {
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if (qup == NULL) {
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if ((qup = (struct quotause *)malloc(sizeof *qup))
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== NULL)
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errx(2, "out of memory");
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}
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/*
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* See if the user requested a specific file system
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* or specified a file inside a mounted file system.
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*/
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if (filename != NULL &&
|
|
strcmp(sfb.f_mntonname, fst[i].f_mntonname) != 0)
|
|
continue;
|
|
if (strcmp(fst[i].f_fstypename, "nfs") == 0) {
|
|
if (lflag)
|
|
continue;
|
|
if (getnfsquota(&fst[i], qup, id, quotatype) == 0)
|
|
continue;
|
|
} else if (strcmp(fst[i].f_fstypename, "ufs") == 0) {
|
|
/*
|
|
* XXX
|
|
* UFS filesystems must be in /etc/fstab, and must
|
|
* indicate that they have quotas on (?!) This is quite
|
|
* unlike SunOS where quotas can be enabled/disabled
|
|
* on a filesystem independent of /etc/fstab, and it
|
|
* will still print quotas for them.
|
|
*/
|
|
if ((fs = getfsspec(fst[i].f_mntfromname)) == NULL)
|
|
continue;
|
|
if (getufsquota(fs, qup, id, quotatype) == 0)
|
|
continue;
|
|
} else
|
|
continue;
|
|
strcpy(qup->fsname, fst[i].f_mntonname);
|
|
if (quphead == NULL)
|
|
quphead = qup;
|
|
else
|
|
quptail->next = qup;
|
|
quptail = qup;
|
|
quptail->next = 0;
|
|
qup = NULL;
|
|
}
|
|
if (qup)
|
|
free(qup);
|
|
endfsent();
|
|
return (quphead);
|
|
}
|
|
|
|
/*
|
|
* Check to see if a particular quota is available.
|
|
*/
|
|
static int
|
|
getufsquota(struct fstab *fs, struct quotause *qup, long id, int quotatype)
|
|
{
|
|
struct quotafile *qf;
|
|
|
|
if ((qf = quota_open(fs, quotatype, O_RDONLY)) == NULL)
|
|
return (0);
|
|
if (quota_read(qf, &qup->dqblk, id) != 0)
|
|
return (0);
|
|
quota_close(qf);
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
getnfsquota(struct statfs *fst, struct quotause *qup, long id, int quotatype)
|
|
{
|
|
struct ext_getquota_args gq_args;
|
|
struct getquota_args old_gq_args;
|
|
struct getquota_rslt gq_rslt;
|
|
struct dqblk *dqp = &qup->dqblk;
|
|
struct timeval tv;
|
|
char *cp, host[NI_MAXHOST];
|
|
enum clnt_stat call_stat;
|
|
|
|
if (fst->f_flags & MNT_LOCAL)
|
|
return (0);
|
|
|
|
/*
|
|
* must be some form of "hostname:/path"
|
|
*/
|
|
cp = fst->f_mntfromname;
|
|
do {
|
|
cp = strrchr(cp, ':');
|
|
} while (cp != NULL && *(cp + 1) != '/');
|
|
if (cp == NULL) {
|
|
warnx("cannot find hostname for %s", fst->f_mntfromname);
|
|
return (0);
|
|
}
|
|
memset(host, 0, sizeof(host));
|
|
memcpy(host, fst->f_mntfromname, cp - fst->f_mntfromname);
|
|
host[sizeof(host) - 1] = '\0';
|
|
|
|
/* Avoid attempting the RPC for special amd(8) filesystems. */
|
|
if (strncmp(fst->f_mntfromname, "pid", 3) == 0 &&
|
|
strchr(fst->f_mntfromname, '@') != NULL)
|
|
return (0);
|
|
|
|
gq_args.gqa_pathp = cp + 1;
|
|
gq_args.gqa_id = id;
|
|
gq_args.gqa_type = quotatype;
|
|
|
|
call_stat = callaurpc(host, RQUOTAPROG, EXT_RQUOTAVERS,
|
|
RQUOTAPROC_GETQUOTA, (xdrproc_t)xdr_ext_getquota_args, (char *)&gq_args,
|
|
(xdrproc_t)xdr_getquota_rslt, (char *)&gq_rslt);
|
|
if (call_stat == RPC_PROGVERSMISMATCH || call_stat == RPC_PROGNOTREGISTERED) {
|
|
if (quotatype == USRQUOTA) {
|
|
old_gq_args.gqa_pathp = cp + 1;
|
|
old_gq_args.gqa_uid = id;
|
|
call_stat = callaurpc(host, RQUOTAPROG, RQUOTAVERS,
|
|
RQUOTAPROC_GETQUOTA, (xdrproc_t)xdr_getquota_args, (char *)&old_gq_args,
|
|
(xdrproc_t)xdr_getquota_rslt, (char *)&gq_rslt);
|
|
} else {
|
|
/* Old rpc quota does not support group type */
|
|
return (0);
|
|
}
|
|
}
|
|
if (call_stat != 0)
|
|
return (call_stat);
|
|
|
|
switch (gq_rslt.status) {
|
|
case Q_NOQUOTA:
|
|
break;
|
|
case Q_EPERM:
|
|
warnx("quota permission error, host: %s",
|
|
fst->f_mntfromname);
|
|
break;
|
|
case Q_OK:
|
|
gettimeofday(&tv, NULL);
|
|
/* blocks*/
|
|
dqp->dqb_bhardlimit =
|
|
((uint64_t)gq_rslt.getquota_rslt_u.gqr_rquota.rq_bhardlimit *
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize) / DEV_BSIZE;
|
|
dqp->dqb_bsoftlimit =
|
|
((uint64_t)gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsoftlimit *
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize) / DEV_BSIZE;
|
|
dqp->dqb_curblocks =
|
|
((uint64_t)gq_rslt.getquota_rslt_u.gqr_rquota.rq_curblocks *
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize) / DEV_BSIZE;
|
|
/* inodes */
|
|
dqp->dqb_ihardlimit =
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_fhardlimit;
|
|
dqp->dqb_isoftlimit =
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_fsoftlimit;
|
|
dqp->dqb_curinodes =
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_curfiles;
|
|
/* grace times */
|
|
dqp->dqb_btime =
|
|
tv.tv_sec + gq_rslt.getquota_rslt_u.gqr_rquota.rq_btimeleft;
|
|
dqp->dqb_itime =
|
|
tv.tv_sec + gq_rslt.getquota_rslt_u.gqr_rquota.rq_ftimeleft;
|
|
return (1);
|
|
default:
|
|
warnx("bad rpc result, host: %s", fst->f_mntfromname);
|
|
break;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static enum clnt_stat
|
|
callaurpc(char *host, int prognum, int versnum, int procnum,
|
|
xdrproc_t inproc, char *in, xdrproc_t outproc, char *out)
|
|
{
|
|
enum clnt_stat clnt_stat;
|
|
struct timeval timeout, tottimeout;
|
|
|
|
CLIENT *client = NULL;
|
|
|
|
client = clnt_create(host, prognum, versnum, "udp");
|
|
if (client == NULL)
|
|
return ((int)rpc_createerr.cf_stat);
|
|
timeout.tv_usec = 0;
|
|
timeout.tv_sec = 6;
|
|
CLNT_CONTROL(client, CLSET_RETRY_TIMEOUT, (char *)(void *)&timeout);
|
|
|
|
client->cl_auth = authunix_create_default();
|
|
tottimeout.tv_sec = 25;
|
|
tottimeout.tv_usec = 0;
|
|
clnt_stat = clnt_call(client, procnum, inproc, in,
|
|
outproc, out, tottimeout);
|
|
return (clnt_stat);
|
|
}
|
|
|
|
static int
|
|
alldigits(char *s)
|
|
{
|
|
int c;
|
|
|
|
c = *s++;
|
|
do {
|
|
if (!isdigit(c))
|
|
return (0);
|
|
} while ((c = *s++));
|
|
return (1);
|
|
}
|