689 lines
16 KiB
C
689 lines
16 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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 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 /* not lint */
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#ifndef lint
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/*static char sccsid[] = "from: @(#)quota.c 8.1 (Berkeley) 6/6/93";*/
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static char rcsid[] = "$Id: quota.c,v 1.6 1994/06/28 07:47:25 deraadt Exp $";
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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/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 <ufs/ufs/quota.h>
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#include <stdio.h>
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#include <fstab.h>
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#include <ctype.h>
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#include <string.h>
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#include <pwd.h>
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#include <grp.h>
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#include <errno.h>
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#include <netdb.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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char *qfname = QUOTAFILENAME;
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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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#define FOUND 0x01
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char *timeprt __P((time_t seconds));
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struct quotause *getprivs __P((long id, int quotatype));
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int qflag;
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int vflag;
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main(argc, argv)
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char *argv[];
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{
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int ngroups;
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gid_t gidset[NGROUPS];
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int i, gflag = 0, uflag = 0;
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char ch;
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extern char *optarg;
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extern int optind, errno;
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while ((ch = getopt(argc, argv, "ugvq")) != EOF) {
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switch(ch) {
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case 'g':
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gflag++;
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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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case 'q':
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qflag++;
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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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showuid(getuid());
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if (gflag) {
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ngroups = getgroups(NGROUPS, gidset);
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if (ngroups < 0) {
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perror("quota: getgroups");
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exit(1);
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}
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for (i = 1; i < ngroups; i++)
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showgid(gidset[i]);
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}
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exit(0);
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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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showuid(atoi(*argv));
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else
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showusrname(*argv);
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}
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exit(0);
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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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showgid(atoi(*argv));
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else
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showgrpname(*argv);
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}
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exit(0);
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}
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}
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usage()
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{
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fprintf(stderr, "%s\n%s\n%s\n",
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"Usage: quota [-guqv]",
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"\tquota [-qv] -u username ...",
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"\tquota [-qv] -g groupname ...");
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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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showuid(uid)
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u_long uid;
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{
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struct passwd *pwd = getpwuid(uid);
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u_long myuid;
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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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myuid = getuid();
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if (uid != myuid && myuid != 0) {
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printf("quota: %s (uid %d): permission denied\n", name, uid);
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return;
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}
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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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showusrname(name)
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char *name;
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{
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struct passwd *pwd = getpwnam(name);
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u_long myuid;
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if (pwd == NULL) {
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fprintf(stderr, "quota: %s: unknown user\n", name);
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return;
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}
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myuid = getuid();
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if (pwd->pw_uid != myuid && myuid != 0) {
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fprintf(stderr, "quota: %s (uid %d): permission denied\n",
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name, pwd->pw_uid);
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return;
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}
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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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showgid(gid)
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u_long gid;
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{
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struct group *grp = getgrgid(gid);
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int ngroups;
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gid_t gidset[NGROUPS];
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register int i;
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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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ngroups = getgroups(NGROUPS, gidset);
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if (ngroups < 0) {
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perror("quota: getgroups");
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return;
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}
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for (i = 1; i < ngroups; i++)
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if (gid == gidset[i])
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break;
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if (i >= ngroups && getuid() != 0) {
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fprintf(stderr, "quota: %s (gid %d): permission denied\n",
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name, gid);
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return;
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}
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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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showgrpname(name)
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char *name;
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{
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struct group *grp = getgrnam(name);
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int ngroups;
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gid_t gidset[NGROUPS];
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register int i;
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if (grp == NULL) {
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fprintf(stderr, "quota: %s: unknown group\n", name);
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return;
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}
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ngroups = getgroups(NGROUPS, gidset);
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if (ngroups < 0) {
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perror("quota: getgroups");
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return;
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}
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for (i = 1; i < ngroups; i++)
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if (grp->gr_gid == gidset[i])
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break;
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if (i >= ngroups && getuid() != 0) {
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fprintf(stderr, "quota: %s (gid %d): permission denied\n",
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name, grp->gr_gid);
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return;
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}
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showquotas(GRPQUOTA, grp->gr_gid, name);
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}
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showquotas(type, id, name)
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int type;
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u_long id;
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char *name;
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{
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register struct quotause *qup;
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struct quotause *quplist;
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char *msgi, *msgb, *nam;
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int myuid, fd, lines = 0;
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static int first;
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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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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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msgi = (char *)0;
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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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msgi = "File limit reached on";
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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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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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msgb = (char *)0;
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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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msgb = "Block limit reached on";
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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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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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if (qflag) {
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if ((msgi != (char *)0 || msgb != (char *)0) &&
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lines++ == 0)
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heading(type, id, name, "");
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if (msgi != (char *)0)
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printf("\t%s %s\n", msgi, qup->fsname);
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if (msgb != (char *)0)
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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 ||
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qup->dqblk.dqb_curinodes) {
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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%8d%c%7d%8d%8s"
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, nam
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, dbtob(qup->dqblk.dqb_curblocks) / 1024
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, (msgb == (char *)0) ? ' ' : '*'
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, dbtob(qup->dqblk.dqb_bsoftlimit) / 1024
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, dbtob(qup->dqblk.dqb_bhardlimit) / 1024
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, (msgb == (char *)0) ? ""
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: timeprt(qup->dqblk.dqb_btime));
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printf("%8d%c%7d%8d%8s\n"
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, qup->dqblk.dqb_curinodes
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, (msgi == (char *)0) ? ' ' : '*'
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, qup->dqblk.dqb_isoftlimit
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, qup->dqblk.dqb_ihardlimit
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, (msgi == (char *)0) ? ""
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: timeprt(qup->dqblk.dqb_itime)
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);
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continue;
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}
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}
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if (!qflag && lines == 0)
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heading(type, id, name, "none");
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}
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heading(type, id, name, tag)
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int type;
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u_long id;
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char *name, *tag;
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{
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printf("Disk quotas for %s %s (%cid %d): %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%8s %7s%8s%8s%8s %7s%8s%8s\n"
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, "Filesystem"
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, "blocks"
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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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char *
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timeprt(seconds)
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time_t seconds;
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{
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time_t hours, minutes;
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static char buf[20];
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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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return ("none");
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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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sprintf(buf, "%ddays", (hours + 12) / 24);
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return (buf);
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}
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if (minutes >= 60) {
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sprintf(buf, "%2d:%d", minutes / 60, minutes % 60);
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return (buf);
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}
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sprintf(buf, "%2d", minutes);
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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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struct quotause *
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getprivs(id, quotatype)
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register long id;
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int quotatype;
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{
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register struct quotause *qup, *quptail;
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register 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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qup = quphead = (struct quotause *)0;
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nfst = getmntinfo(&fst, MNT_WAIT);
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if (nfst == 0) {
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fprintf(stderr, "quota: no filesystems mounted!\n");
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exit(2);
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}
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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)) == NULL) {
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fprintf(stderr, "quota: out of memory\n");
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exit(2);
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}
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}
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if (strcmp(fst[i].f_fstypename, "nfs") == 0) {
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if (getnfsquota(&fst[i], NULL, qup, id, quotatype) == 0)
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continue;
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} else if (strcmp(fst[i].f_fstypename, "ufs") == 0) {
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/*
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* XXX
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* UFS filesystems must be in /etc/fstab, and must
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* indicate that they have quotas on (?!) This is quite
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* unlike SunOS where quotas can be enabled/disabled
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* on a filesystem independent of /etc/fstab, and it
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* will still print quotas for them.
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*/
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if ((fs = getfsspec(fst[i].f_mntfromname)) == NULL)
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continue;
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if (getufsquota(&fst[i], fs, qup, id, quotatype) == 0)
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continue;
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} else
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continue;
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strcpy(qup->fsname, fst[i].f_mntonname);
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if (quphead == NULL)
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quphead = qup;
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else
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quptail->next = qup;
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quptail = qup;
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quptail->next = 0;
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qup = NULL;
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}
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if (qup)
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free(qup);
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endfsent();
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return (quphead);
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}
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/*
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* Check to see if a particular quota is to be enabled.
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*/
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ufshasquota(fs, type, qfnamep)
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register struct fstab *fs;
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int type;
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char **qfnamep;
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{
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static char initname, usrname[100], grpname[100];
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static char buf[BUFSIZ];
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char *opt, *cp;
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if (!initname) {
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sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname);
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sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname);
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initname = 1;
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}
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strcpy(buf, fs->fs_mntops);
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for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
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if (cp = index(opt, '='))
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*cp++ = '\0';
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if (type == USRQUOTA && strcmp(opt, usrname) == 0)
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break;
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if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
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break;
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}
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if (!opt)
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return (0);
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if (cp) {
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*qfnamep = cp;
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return (1);
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}
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(void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]);
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*qfnamep = buf;
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return (1);
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}
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int
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getufsquota(fst, fs, qup, id, quotatype)
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struct statfs *fst;
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struct fstab *fs;
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struct quotause *qup;
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long id;
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int quotatype;
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{
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char *qfpathname;
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int fd, qcmd;
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qcmd = QCMD(Q_GETQUOTA, quotatype);
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if (!ufshasquota(fs, quotatype, &qfpathname))
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return (0);
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if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) {
|
|
if ((fd = open(qfpathname, O_RDONLY)) < 0) {
|
|
perror(qfpathname);
|
|
return (0);
|
|
}
|
|
(void) lseek(fd, (off_t)(id * sizeof(struct dqblk)), L_SET);
|
|
switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) {
|
|
case 0: /* EOF */
|
|
/*
|
|
* Convert implicit 0 quota (EOF)
|
|
* into an explicit one (zero'ed dqblk)
|
|
*/
|
|
bzero((caddr_t)&qup->dqblk, sizeof(struct dqblk));
|
|
break;
|
|
case sizeof(struct dqblk): /* OK */
|
|
break;
|
|
default: /* ERROR */
|
|
fprintf(stderr, "quota: read error");
|
|
perror(qfpathname);
|
|
close(fd);
|
|
return (0);
|
|
}
|
|
close(fd);
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
getnfsquota(fst, fs, qup, id, quotatype)
|
|
struct statfs *fst;
|
|
struct fstab *fs;
|
|
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;
|
|
|
|
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 = strchr(fst->f_mntfromname, ':');
|
|
if (cp == NULL) {
|
|
fprintf(stderr, "cannot find hostname for %s\n",
|
|
fst->f_mntfromname);
|
|
return (0);
|
|
}
|
|
|
|
*cp = '\0';
|
|
if (*(cp+1) != '/') {
|
|
*cp = ':';
|
|
return (0);
|
|
}
|
|
|
|
gq_args.gqa_pathp = cp + 1;
|
|
gq_args.gqa_uid = id;
|
|
if (callaurpc(fst->f_mntfromname, RQUOTAPROG, RQUOTAVERS,
|
|
RQUOTAPROC_GETQUOTA, xdr_getquota_args, &gq_args,
|
|
xdr_getquota_rslt, &gq_rslt) != 0) {
|
|
*cp = ':';
|
|
return (0);
|
|
}
|
|
|
|
switch (gq_rslt.status) {
|
|
case Q_NOQUOTA:
|
|
break;
|
|
case Q_EPERM:
|
|
fprintf(stderr, "quota permission error, host: %s\n",
|
|
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;
|
|
*cp = ':';
|
|
return (1);
|
|
default:
|
|
fprintf(stderr, "bad rpc result, host: %s\n",
|
|
fst->f_mntfromname);
|
|
break;
|
|
}
|
|
*cp = ':';
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
callaurpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
|
|
char *host;
|
|
xdrproc_t inproc, outproc;
|
|
char *in, *out;
|
|
{
|
|
struct sockaddr_in server_addr;
|
|
enum clnt_stat clnt_stat;
|
|
struct hostent *hp;
|
|
struct timeval timeout, tottimeout;
|
|
|
|
CLIENT *client = NULL;
|
|
int socket = RPC_ANYSOCK;
|
|
|
|
if ((hp = gethostbyname(host)) == NULL)
|
|
return ((int) RPC_UNKNOWNHOST);
|
|
timeout.tv_usec = 0;
|
|
timeout.tv_sec = 6;
|
|
bcopy(hp->h_addr, &server_addr.sin_addr, hp->h_length);
|
|
server_addr.sin_family = AF_INET;
|
|
server_addr.sin_port = 0;
|
|
|
|
if ((client = clntudp_create(&server_addr, prognum,
|
|
versnum, timeout, &socket)) == NULL)
|
|
return ((int) rpc_createerr.cf_stat);
|
|
|
|
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);
|
|
}
|
|
|
|
alldigits(s)
|
|
register char *s;
|
|
{
|
|
register c;
|
|
|
|
c = *s++;
|
|
do {
|
|
if (!isdigit(c))
|
|
return (0);
|
|
} while (c = *s++);
|
|
return (1);
|
|
}
|