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warnx?/errx? paranoia (use "%s" not a bare string unless it is a
constant).  These are not security holes but it is worth fixing
them anyway both for robustness and so folks looking for examples
in the tree are not misled into doing something potentially dangerous.
Furthermore, it is a bad idea to assume that pathnames will not
include '%' in them and that error routines don't return strings
with '%' in them (especially in light of the possibility of locales).

/*
 * Copyright (c) 1980, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Robert Elz at The University of Melbourne.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1980, 1990, 1993\n\
	The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
/*static char sccsid[] = "from: @(#)edquota.c	8.1 (Berkeley) 6/6/93";*/
static char *rcsid = "$Id: edquota.c,v 1.24 2000/06/30 16:00:24 millert Exp $";
#endif /* not lint */

/*
 * Disk quota editor.
 */
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <sys/wait.h>
#include <ufs/ufs/quota.h>
#include <err.h>
#include <errno.h>
#include <fstab.h>
#include <pwd.h>
#include <grp.h>
#include <ctype.h>
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "pathnames.h"

char *qfname = QUOTAFILENAME;
char *qfextension[] = INITQFNAMES;
char *quotagroup = QUOTAGROUP;
char tmpfil[] = _PATH_TMPFILE;

struct quotause {
	struct	quotause *next;
	long	flags;
	struct	dqblk dqblk;
	char	fsname[MAXPATHLEN];
	char	qfname[1];	/* actually longer */
} *getprivs __P((u_int, int));
#define	FOUND	0x01

void	putprivs __P((long, int, struct quotause *));
void	freeprivs __P((struct quotause *));
int	writetimes __P((struct quotause *, int, int));
int	editit __P((char *));
int	readtimes __P((struct quotause *, int));
int	writeprivs __P((struct quotause *, int, char *, int));
int	alldigits __P((char *s));
int	readprivs __P((struct quotause *, int));
int	hasquota __P((struct fstab *, int, char **));
int	cvtatos __P((time_t, char *, time_t *));
int	getentry __P((char *, int, u_int *));

void
usage()
{
	(void)fprintf(stderr, "%s%s%s%s",
		"Usage: edquota [-u] [-p username] username ...\n",
		"\tedquota -g [-p groupname] groupname ...\n",
		"\tedquota [-u] -t\n", "\tedquota -g -t\n");
	exit(1);
}

int
main(argc, argv)
	register char **argv;
	int argc;
{
	register struct quotause *qup, *protoprivs, *curprivs;
	u_int id, protoid;
	register int quotatype, tmpfd;
	char *protoname = NULL;
	int ch;
	int tflag = 0, pflag = 0;

	if (argc < 2)
		usage();
	if (getuid())
		errx(1, "%s", strerror(EPERM));
	quotatype = USRQUOTA;
	while ((ch = getopt(argc, argv, "ugtp:")) != -1) {
		switch(ch) {
		case 'p':
			protoname = optarg;
			pflag++;
			break;
		case 'g':
			quotatype = GRPQUOTA;
			break;
		case 'u':
			quotatype = USRQUOTA;
			break;
		case 't':
			tflag++;
			break;
		default:
			usage();
		}
	}
	argc -= optind;
	argv += optind;
	if (pflag) {
		if (getentry(protoname, quotatype, &protoid) == -1)
			exit(1);
		protoprivs = getprivs(protoid, quotatype);
		for (qup = protoprivs; qup; qup = qup->next) {
			qup->dqblk.dqb_btime = 0;
			qup->dqblk.dqb_itime = 0;
		}
		while (argc-- > 0) {
			if (getentry(*argv++, quotatype, &id) == -1)
				continue;
			putprivs(id, quotatype, protoprivs);
		}
		exit(0);
	}
	if ((tmpfd = mkstemp(tmpfil)) == -1)
		errx(1, "%s", tmpfil);
	if (tflag) {
		protoprivs = getprivs(0, quotatype);
		if (writetimes(protoprivs, tmpfd, quotatype) == 0) {
			unlink(tmpfil);
			exit(1);
		}
		if (editit(tmpfil) && readtimes(protoprivs, tmpfd))
			putprivs(0, quotatype, protoprivs);
		freeprivs(protoprivs);
		unlink(tmpfil);
		exit(0);
	}
	for ( ; argc > 0; argc--, argv++) {
		if (getentry(*argv, quotatype, &id) == -1)
			continue;
		curprivs = getprivs(id, quotatype);
		if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0)
			continue;
		if (editit(tmpfil) && readprivs(curprivs, tmpfd))
			putprivs(id, quotatype, curprivs);
		freeprivs(curprivs);
	}
	close(tmpfd);
	unlink(tmpfil);
	exit(0);
}

/*
 * This routine converts a name for a particular quota type to
 * an identifier. This routine must agree with the kernel routine
 * getinoquota as to the interpretation of quota types.
 */
int
getentry(name, quotatype, idp)
	char *name;
	int quotatype;
	u_int *idp;
{
	struct passwd *pw;
	struct group *gr;
	u_int id;

	switch(quotatype) {
	case USRQUOTA:
		if ((pw = getpwnam(name))) {
			*idp = pw->pw_uid;
			return 0;
		} else if (alldigits(name)) {
			if ((id = strtoul(name, NULL, 10)) <= UID_MAX) {
				*idp = id;
				return 0;
			}
		}
		warnx("%s: no such user", name);
		break;
	case GRPQUOTA:
		if ((gr = getgrnam(name))) {
			*idp = gr->gr_gid;
			return 0;
		} else if (alldigits(name)) {
			if ((id = strtoul(name, NULL, 10)) <= GID_MAX) {
				*idp = id;
				return (0);
			}
		}
		warnx("%s: no such group", name);
		break;
	default:
		warnx("%d: unknown quota type", quotatype);
		break;
	}
	sleep(1);
	return(-1);
}

/*
 * Collect the requested quota information.
 */
struct quotause *
getprivs(id, quotatype)
	register u_int id;
	int quotatype;
{
	register struct fstab *fs;
	register struct quotause *qup, *quptail;
	struct quotause *quphead;
	int qcmd, qupsize, fd;
	u_int mid;
	char *qfpathname;
	static int warned = 0;

	setfsent();
	quphead = (struct quotause *)0;
	qcmd = QCMD(Q_GETQUOTA, quotatype);
	while ((fs = getfsent())) {
		if (strcmp(fs->fs_vfstype, "ffs") &&
		    strcmp(fs->fs_vfstype, "ufs") &&
		    strcmp(fs->fs_vfstype, "mfs"))
			continue;
		if (!hasquota(fs, quotatype, &qfpathname))
			continue;
		qupsize = sizeof(*qup) + strlen(qfpathname);
		if ((qup = (struct quotause *)malloc(qupsize)) == NULL)
			errx(2, "out of memory");
		if (quotactl(fs->fs_file, qcmd, id, (char *)&qup->dqblk) != 0) {
	    		if (errno == EOPNOTSUPP && !warned) {
				warned++;
				(void)fprintf(stderr, "Warning: %s\n",
				    "Quotas are not compiled into this kernel");
				sleep(3);
			}
			if (getentry(quotagroup, GRPQUOTA, &mid) == -1) {
				warned++;
				(void)fprintf(stderr, "Warning: "
				    "group %s not known, skipping %s\n",
				    quotagroup, fs->fs_file);
			}
			if ((fd = open(qfpathname, O_RDONLY)) < 0) {
				fd = open(qfpathname, O_RDWR|O_CREAT, 0640);
				if (fd < 0 && errno != ENOENT) {
					perror(qfpathname);
					free(qup);
					continue;
				}
				(void)fprintf(stderr, "Creating quota file %s\n",
				    qfpathname);
				sleep(3);
				(void)fchown(fd, getuid(), mid);
				(void)fchmod(fd, 0640);
			}
			lseek(fd, (off_t)(id * sizeof(struct dqblk)), SEEK_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 */
				warn("read error in %s", qfpathname);
				close(fd);
				free(qup);
				continue;
			}
			close(fd);
		}
		strcpy(qup->qfname, qfpathname);
		strcpy(qup->fsname, fs->fs_file);
		if (quphead == NULL)
			quphead = qup;
		else
			quptail->next = qup;
		quptail = qup;
		qup->next = 0;
	}
	endfsent();
	return(quphead);
}

/*
 * Store the requested quota information.
 */
void
putprivs(id, quotatype, quplist)
	long id;
	int quotatype;
	struct quotause *quplist;
{
	register struct quotause *qup;
	int qcmd, fd;

	qcmd = QCMD(Q_SETQUOTA, quotatype);
	for (qup = quplist; qup; qup = qup->next) {
		if (quotactl(qup->fsname, qcmd, id, (char *)&qup->dqblk) == 0)
			continue;
		if ((fd = open(qup->qfname, O_WRONLY)) < 0) {
			perror(qup->qfname);
		} else {
			lseek(fd, (off_t)(id * sizeof (struct dqblk)), 0);
			if (write(fd, &qup->dqblk, sizeof (struct dqblk)) !=
			    sizeof (struct dqblk))
				warn("%s", qup->qfname);
			close(fd);
		}
	}
}

/*
 * Take a list of priviledges and get it edited.
 */
int
editit(tmpfile)
	char *tmpfile;
{
	int omask;
	int pid, stat, xpid;
	char *argp[] = {"sh", "-c", NULL, NULL};
	register char *ed;
	char *p;

	if ((ed = getenv("EDITOR")) == (char *)0)
		ed = _PATH_VI;
	p = (char *)malloc(strlen(ed) + 1 + strlen(tmpfile) + 1);
	if (!p)
		return(0);
	(void)sprintf(p, "%s %s", ed, tmpfile);
	argp[2] = p;

	omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
 top:
	if ((pid = fork()) < 0) {
		if (errno == EPROCLIM) {
			warnx("you have too many processes");
			free(p);
			return(0);
		}
		if (errno == EAGAIN) {
			sleep(1);
			goto top;
		}
		perror("fork");
		free(p);
		return(0);
	}
	if (pid == 0) {
		sigsetmask(omask);
		setgid(getgid());
		setuid(getuid());
		execv(_PATH_BSHELL, argp);
		_exit(127);
	}
	free(p);
	for (;;) {
		xpid = waitpid(pid, (int *)&stat, WUNTRACED);
		if (WIFSTOPPED(stat))
			raise(WSTOPSIG(stat));
		else if (WIFEXITED(stat))
			break;
	}
	sigsetmask(omask);
	if (!WIFEXITED(stat) || WEXITSTATUS(stat) != 0)
		return(0);
	return(1);
}

/*
 * Convert a quotause list to an ASCII file.
 */
int
writeprivs(quplist, outfd, name, quotatype)
	struct quotause *quplist;
	int outfd;
	char *name;
	int quotatype;
{
	register struct quotause *qup;
	FILE *fd;

	ftruncate(outfd, 0);
	lseek(outfd, 0, SEEK_SET);
	if ((fd = fdopen(dup(outfd), "w")) == NULL)
		err(1, "%s", tmpfil);
	(void)fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name);
	for (qup = quplist; qup; qup = qup->next) {
		(void)fprintf(fd, "%s: %s %d, limits (soft = %d, hard = %d)\n",
		    qup->fsname, "blocks in use:",
		    dbtob(qup->dqblk.dqb_curblocks) / 1024,
		    dbtob(qup->dqblk.dqb_bsoftlimit) / 1024,
		    dbtob(qup->dqblk.dqb_bhardlimit) / 1024);
		(void)fprintf(fd, "%s %d, limits (soft = %d, hard = %d)\n",
		    "\tinodes in use:", qup->dqblk.dqb_curinodes,
		    qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit);
	}
	fclose(fd);
	return(1);
}

/*
 * Merge changes to an ASCII file into a quotause list.
 */
int
readprivs(quplist, infd)
	struct quotause *quplist;
	int infd;
{
	register struct quotause *qup;
	FILE *fd;
	int cnt;
	register char *cp;
	struct dqblk dqblk;
	char *fsp, line1[BUFSIZ], line2[BUFSIZ];

	lseek(infd, 0, SEEK_SET);
	fd = fdopen(dup(infd), "r");
	if (fd == NULL) {
		warnx("can't re-read temp file!!");
		return(0);
	}
	/*
	 * Discard title line, then read pairs of lines to process.
	 */
	(void)fgets(line1, sizeof (line1), fd);
	while (fgets(line1, sizeof (line1), fd) != NULL &&
	       fgets(line2, sizeof (line2), fd) != NULL) {
		if ((fsp = strtok(line1, " \t:")) == NULL) {
			warnx("%s: bad format", line1);
			return(0);
		}
		if ((cp = strtok((char *)0, "\n")) == NULL) {
			warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
			return(0);
		}
		cnt = sscanf(cp,
		    " blocks in use: %d, limits (soft = %d, hard = %d)",
		    &dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit,
		    &dqblk.dqb_bhardlimit);
		if (cnt != 3) {
			warnx("%s:%s: bad format", fsp, cp);
			return(0);
		}
		dqblk.dqb_curblocks = btodb(dqblk.dqb_curblocks * 1024);
		dqblk.dqb_bsoftlimit = btodb((off_t)dqblk.dqb_bsoftlimit * 1024);
		dqblk.dqb_bhardlimit = btodb((off_t)dqblk.dqb_bhardlimit * 1024);
		if ((cp = strtok(line2, "\n")) == NULL) {
			warnx("%s: %s: bad format", fsp, line2);
			return(0);
		}
		cnt = sscanf(cp,
		    "\tinodes in use: %d, limits (soft = %d, hard = %d)",
		    &dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit,
		    &dqblk.dqb_ihardlimit);
		if (cnt != 3) {
			warnx("%s: %s: bad format", fsp, line2);
			return(0);
		}
		for (qup = quplist; qup; qup = qup->next) {
			if (strcmp(fsp, qup->fsname))
				continue;
			/*
			 * Cause time limit to be reset when the quota
			 * is next used if previously had no soft limit
			 * or were under it, but now have a soft limit
			 * and are over it.
			 */
			if (dqblk.dqb_bsoftlimit &&
			    qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
			    (qup->dqblk.dqb_bsoftlimit == 0 ||
			     qup->dqblk.dqb_curblocks <
			     qup->dqblk.dqb_bsoftlimit))
				qup->dqblk.dqb_btime = 0;
			if (dqblk.dqb_isoftlimit &&
			    qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
			    (qup->dqblk.dqb_isoftlimit == 0 ||
			     qup->dqblk.dqb_curinodes <
			     qup->dqblk.dqb_isoftlimit))
				qup->dqblk.dqb_itime = 0;
			qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
			qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
			qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
			qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
			qup->flags |= FOUND;
			if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
			    dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes)
				break;
			warnx("%s: cannot change current allocationn", fsp);
			break;
		}
	}
	fclose(fd);
	/*
	 * Disable quotas for any filesystems that have not been found.
	 */
	for (qup = quplist; qup; qup = qup->next) {
		if (qup->flags & FOUND) {
			qup->flags &= ~FOUND;
			continue;
		}
		qup->dqblk.dqb_bsoftlimit = 0;
		qup->dqblk.dqb_bhardlimit = 0;
		qup->dqblk.dqb_isoftlimit = 0;
		qup->dqblk.dqb_ihardlimit = 0;
	}
	return(1);
}

/*
 * Convert a quotause list to an ASCII file of grace times.
 */
int
writetimes(quplist, outfd, quotatype)
	struct quotause *quplist;
	int outfd;
	int quotatype;
{
	register struct quotause *qup;
	char *cvtstoa();
	FILE *fd;

	ftruncate(outfd, 0);
	lseek(outfd, 0, SEEK_SET);
	if ((fd = fdopen(dup(outfd), "w")) == NULL)
		err(1, "%s", tmpfil);
	(void)fprintf(fd,
	    "Time units may be: days, hours, minutes, or seconds\n");
	(void)fprintf(fd,
	    "Grace period before enforcing soft limits for %ss:\n",
	    qfextension[quotatype]);
	for (qup = quplist; qup; qup = qup->next) {
		(void)fprintf(fd, "%s: block grace period: %s, ",
		    qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
		(void)fprintf(fd, "file grace period: %s\n",
		    cvtstoa(qup->dqblk.dqb_itime));
	}
	fclose(fd);
	return(1);
}

/*
 * Merge changes of grace times in an ASCII file into a quotause list.
 */
int
readtimes(quplist, infd)
	struct quotause *quplist;
	int infd;
{
	register struct quotause *qup;
	FILE *fd;
	int cnt;
	register char *cp;
	time_t itime, btime, iseconds, bseconds;
	char *fsp, bunits[10], iunits[10], line1[BUFSIZ];

	lseek(infd, 0, SEEK_SET);
	fd = fdopen(dup(infd), "r");
	if (fd == NULL) {
		warnx("can't re-read temp file!!");
		return(0);
	}
	/*
	 * Discard two title lines, then read lines to process.
	 */
	(void)fgets(line1, sizeof (line1), fd);
	(void)fgets(line1, sizeof (line1), fd);
	while (fgets(line1, sizeof (line1), fd) != NULL) {
		if ((fsp = strtok(line1, " \t:")) == NULL) {
			warnx("%s: bad format", line1);
			return(0);
		}
		if ((cp = strtok((char *)0, "\n")) == NULL) {
			warnx("%s: %s: bad format", fsp,
			    &fsp[strlen(fsp) + 1]);
			return(0);
		}
		cnt = sscanf(cp,
		    " block grace period: %d %s file grace period: %d %s",
		    (int *)&btime, bunits, (int *)&itime, iunits);
		if (cnt != 4) {
			warnx("%s:%s: bad format", fsp, cp);
			return(0);
		}
		if (cvtatos(btime, bunits, &bseconds) == 0)
			return(0);
		if (cvtatos(itime, iunits, &iseconds) == 0)
			return(0);
		for (qup = quplist; qup; qup = qup->next) {
			if (strcmp(fsp, qup->fsname))
				continue;
			qup->dqblk.dqb_btime = bseconds;
			qup->dqblk.dqb_itime = iseconds;
			qup->flags |= FOUND;
			break;
		}
	}
	fclose(fd);
	/*
	 * reset default grace periods for any filesystems
	 * that have not been found.
	 */
	for (qup = quplist; qup; qup = qup->next) {
		if (qup->flags & FOUND) {
			qup->flags &= ~FOUND;
			continue;
		}
		qup->dqblk.dqb_btime = 0;
		qup->dqblk.dqb_itime = 0;
	}
	return(1);
}

/*
 * Convert seconds to ASCII times.
 */
char *
cvtstoa(time)
	time_t time;
{
	static char buf[20];

	if (time % (24 * 60 * 60) == 0) {
		time /= 24 * 60 * 60;
		(void)sprintf(buf, "%d day%s", (int)time,
		    time == 1 ? "" : "s");
	} else if (time % (60 * 60) == 0) {
		time /= 60 * 60;
		(void)sprintf(buf, "%d hour%s", (int)time,
		    time == 1 ? "" : "s");
	} else if (time % 60 == 0) {
		time /= 60;
		(void)sprintf(buf, "%d minute%s", (int)time,
		    time == 1 ? "" : "s");
	} else
		(void)sprintf(buf, "%d second%s", (int)time,
		    time == 1 ? "" : "s");
	return(buf);
}

/*
 * Convert ASCII input times to seconds.
 */
int
cvtatos(time, units, seconds)
	time_t time;
	char *units;
	time_t *seconds;
{

	if (bcmp(units, "second", 6) == 0)
		*seconds = time;
	else if (bcmp(units, "minute", 6) == 0)
		*seconds = time * 60;
	else if (bcmp(units, "hour", 4) == 0)
		*seconds = time * 60 * 60;
	else if (bcmp(units, "day", 3) == 0)
		*seconds = time * 24 * 60 * 60;
	else {
		(void)printf("%s: bad units, specify %s\n", units,
		    "days, hours, minutes, or seconds");
		return(0);
	}
	return(1);
}

/*
 * Free a list of quotause structures.
 */
void
freeprivs(quplist)
	struct quotause *quplist;
{
	register struct quotause *qup, *nextqup;

	for (qup = quplist; qup; qup = nextqup) {
		nextqup = qup->next;
		free(qup);
	}
}

/*
 * Check whether a string is completely composed of digits.
 */
int
alldigits(s)
	register char *s;
{
	register int c;

	c = *s++;
	do {
		if (!isdigit(c))
			return(0);
	} while ((c = *s++));
	return(1);
}

/*
 * Check to see if a particular quota is to be enabled.
 */
int
hasquota(fs, type, qfnamep)
	register struct fstab *fs;
	int type;
	char **qfnamep;
{
	register char *opt;
	char *cp;
	static char initname, usrname[100], grpname[100];
	static char buf[BUFSIZ];

	if (!initname) {
		(void)sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname);
		(void)sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname);
		initname = 1;
	}
	strcpy(buf, fs->fs_mntops);
	for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
		if ((cp = strchr(opt, '=')))
			*cp++ = '\0';
		if (type == USRQUOTA && strcmp(opt, usrname) == 0)
			break;
		if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
			break;
	}
	if (!opt)
		return(0);
	if (cp) {
		*qfnamep = cp;
		return(1);
	}
	(void)sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]);
	*qfnamep = buf;
	return(1);
}