Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
688 lines
17 KiB
C
688 lines
17 KiB
C
/*
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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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__FBSDID("$FreeBSD$");
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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);
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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 int 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 specifed 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 specifed 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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/*
|
|
* See if the user requested a specific file system
|
|
* or specified a file inside a mounted file system.
|
|
*/
|
|
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 getquota_args gq_args;
|
|
struct getquota_rslt gq_rslt;
|
|
struct dqblk *dqp = &qup->dqblk;
|
|
struct timeval tv;
|
|
char *cp, host[NI_MAXHOST];
|
|
|
|
if (fst->f_flags & MNT_LOCAL)
|
|
return (0);
|
|
|
|
/*
|
|
* rpc.rquotad does not support group quotas
|
|
*/
|
|
if (quotatype != USRQUOTA)
|
|
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_uid = id;
|
|
if (callaurpc(host, RQUOTAPROG, RQUOTAVERS,
|
|
RQUOTAPROC_GETQUOTA, (xdrproc_t)xdr_getquota_args, (char *)&gq_args,
|
|
(xdrproc_t)xdr_getquota_rslt, (char *)&gq_rslt) != 0)
|
|
return (0);
|
|
|
|
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 =
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_bhardlimit *
|
|
(gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE);
|
|
dqp->dqb_bsoftlimit =
|
|
gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsoftlimit *
|
|
(gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE);
|
|
dqp->dqb_curblocks =
|
|
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 int
|
|
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 ((int) clnt_stat);
|
|
}
|
|
|
|
static int
|
|
alldigits(char *s)
|
|
{
|
|
int c;
|
|
|
|
c = *s++;
|
|
do {
|
|
if (!isdigit(c))
|
|
return (0);
|
|
} while ((c = *s++));
|
|
return (1);
|
|
}
|