Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/edquota/edquota.c	Lines:	0	364	0.0 %
Date:	2017-11-07	Branches:	0	225	0.0 %


/*
 * 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. 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.
 */

/*
 * Disk quota editor.
 */
#include <sys/param.h>	/* btodb dbtob */
#include <sys/stat.h>
#include <sys/file.h>
#include <sys/wait.h>
#include <ufs/ufs/quota.h>

#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fstab.h>
#include <grp.h>
#include <paths.h>
#include <pwd.h>
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>

char *qfname = QUOTAFILENAME;
char *qfextension[] = INITQFNAMES;
char *quotagroup = QUOTAGROUP;
char tmpfil[] = "/tmp/edquota.XXXXXXXXXX";

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

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

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

int
main(int argc, char *argv[])
{
	struct quotause *qup, *protoprivs, *curprivs;
	u_int id, protoid;
	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 = 1;
			break;
		case 'g':
			quotatype = GRPQUOTA;
			break;
		case 'u':
			quotatype = USRQUOTA;
			break;
		case 't':
			tflag = 1;
			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) == -1) {
			int saved_errno = errno;
			unlink(tmpfil);
			errc(1, saved_errno, "error starting editor");
		}
		if (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) == -1) {
			warn("error starting editor");
			continue;
		}
		if (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(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(u_int id, int quotatype)
{
	struct fstab *fs;
	struct quotause *qup, *quptail;
	struct quotause *quphead;
	int qcmd, qupsize, fd;
	u_int mid;
	char *qfpathname;
	static int warned = 0;
	size_t qfpathnamelen;

	setfsent();
	quphead = NULL;
	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;
		qfpathnamelen = strlen(qfpathname);
		qupsize = sizeof(*qup) + qfpathnamelen;
		if ((qup = 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);
		}
		strlcpy(qup->qfname, qfpathname, qfpathnamelen + 1);
		strlcpy(qup->fsname, fs->fs_file, sizeof qup->fsname);
		if (quphead == NULL)
			quphead = qup;
		else
			quptail->next = qup;
		quptail = qup;
		qup->next = NULL;
	}
	endfsent();
	return(quphead);
}

/*
 * Store the requested quota information.
 */
void
putprivs(long id, int quotatype, struct quotause *quplist)
{
	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)), SEEK_SET);
			if (write(fd, &qup->dqblk, sizeof (struct dqblk)) !=
			    sizeof (struct dqblk))
				warn("%s", qup->qfname);
			close(fd);
		}
	}
}

/*
 * Execute an editor on the specified pathname, which is interpreted
 * from the shell.  This means flags may be included.
 *
 * Returns -1 on error, or the exit value on success.
 */
int
editit(const char *pathname)
{
	char *argp[] = {"sh", "-c", NULL, NULL}, *ed, *p;
	sig_t sighup, sigint, sigquit, sigchld;
	pid_t pid;
	int saved_errno, st, ret = -1;

	ed = getenv("VISUAL");
	if (ed == NULL || ed[0] == '\0')
		ed = getenv("EDITOR");
	if (ed == NULL || ed[0] == '\0')
		ed = _PATH_VI;
	if (asprintf(&p, "%s %s", ed, pathname) == -1)
		return (-1);
	argp[2] = p;

	sighup = signal(SIGHUP, SIG_IGN);
	sigint = signal(SIGINT, SIG_IGN);
	sigquit = signal(SIGQUIT, SIG_IGN);
	sigchld = signal(SIGCHLD, SIG_DFL);
	if ((pid = fork()) == -1)
		goto fail;
	if (pid == 0) {
		execv(_PATH_BSHELL, argp);
		_exit(127);
	}
	while (waitpid(pid, &st, 0) == -1)
		if (errno != EINTR)
			goto fail;
	if (!WIFEXITED(st))
		errno = EINTR;
	else
		ret = WEXITSTATUS(st);

 fail:
	saved_errno = errno;
	(void)signal(SIGHUP, sighup);
	(void)signal(SIGINT, sigint);
	(void)signal(SIGQUIT, sigquit);
	(void)signal(SIGCHLD, sigchld);
	free(p);
	errno = saved_errno;
	return (ret);
}

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

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

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

	lseek(infd, 0, SEEK_SET);
	fp = fdopen(dup(infd), "r");
	if (fp == 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), fp);
	while (fgets(line1, sizeof (line1), fp) != NULL &&
	       fgets(line2, sizeof (line2), fp) != NULL) {
		if ((fsp = strtok(line1, " \t:")) == NULL) {
			warnx("%s: bad format", line1);
			return(0);
		}
		if ((cp = strtok(NULL, "\n")) == NULL) {
			warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
			return(0);
		}
		cnt = sscanf(cp,
		    " KBytes 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((u_quad_t)
		    dqblk.dqb_curblocks * 1024);
		dqblk.dqb_bsoftlimit = btodb((u_quad_t)
		    dqblk.dqb_bsoftlimit * 1024);
		dqblk.dqb_bhardlimit = btodb((u_quad_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 allocation", fsp);
			break;
		}
	}
	fclose(fp);
	/*
	 * 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(struct quotause *quplist, int outfd, int quotatype)
{
	struct quotause *qup;
	FILE *fp;

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

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

	lseek(infd, 0, SEEK_SET);
	fp = fdopen(dup(infd), "r");
	if (fp == NULL) {
		warnx("can't re-read temp file!!");
		return(0);
	}
	/*
	 * Discard two title lines, then read lines to process.
	 */
	(void)fgets(line1, sizeof (line1), fp);
	(void)fgets(line1, sizeof (line1), fp);
	while (fgets(line1, sizeof (line1), fp) != NULL) {
		if ((fsp = strtok(line1, " \t:")) == NULL) {
			warnx("%s: bad format", line1);
			return(0);
		}
		if ((cp = strtok(NULL, "\n")) == NULL) {
			warnx("%s: %s: bad format", fsp,
			    &fsp[strlen(fsp) + 1]);
			return(0);
		}
		cnt = sscanf(cp,
		    " block grace period: %lld %9s file grace period: %lld %9s",
		    &btime, bunits, &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(fp);
	/*
	 * 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_t time)
{
	static char buf[20];

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

/*
 * Convert ASCII input times to seconds.
 */
int
cvtatos(long long 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(struct quotause *quplist)
{
	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(char *s)
{
	int c;

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

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

	if (!initname) {
		(void)snprintf(usrname, sizeof usrname, "%s%s",
		    qfextension[USRQUOTA], qfname);
		(void)snprintf(grpname, sizeof grpname, "%s%s",
		    qfextension[GRPQUOTA], qfname);
		initname = 1;
	}
	strlcpy(buf, fs->fs_mntops, sizeof buf);
	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)snprintf(buf, sizeof buf, "%s/%s.%s",
	    fs->fs_file, qfname, qfextension[type]);
	*qfnamep = buf;
	return(1);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 1980, 1990, 1993
3			* The Regents of the University of California. All rights reserved.
4			*
5			* This code is derived from software contributed to Berkeley by
6			* Robert Elz at The University of Melbourne.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			/*
34			* Disk quota editor.
35			*/
36			#include <sys/param.h> /* btodb dbtob */
37			#include <sys/stat.h>
38			#include <sys/file.h>
39			#include <sys/wait.h>
40			#include <ufs/ufs/quota.h>
41
42			#include <ctype.h>
43			#include <err.h>
44			#include <errno.h>
45			#include <fstab.h>
46			#include <grp.h>
47			#include <paths.h>
48			#include <pwd.h>
49			#include <stdio.h>
50			#include <signal.h>
51			#include <stdlib.h>
52			#include <string.h>
53			#include <unistd.h>
54			#include <limits.h>
55
56			char *qfname = QUOTAFILENAME;
57			char *qfextension[] = INITQFNAMES;
58			char *quotagroup = QUOTAGROUP;
59			char tmpfil[] = "/tmp/edquota.XXXXXXXXXX";
60
61			struct quotause {
62			struct quotause *next;
63			long flags;
64			struct dqblk dqblk;
65			char fsname[PATH_MAX];
66			char qfname[1]; /* actually longer */
67			} *getprivs(u_int, int);
68			#define FOUND 0x01
69
70			void usage(void);
71			int getentry(char , int, u_int );
72			struct quotause *
73			getprivs(u_int, int);
74			void putprivs(long, int, struct quotause *);
75			int editit(const char *);
76			int writeprivs(struct quotause , int, char , int);
77			int readprivs(struct quotause *, int);
78			int writetimes(struct quotause *, int, int);
79			int readtimes(struct quotause *, int);
80			char * cvtstoa(time_t);
81			int cvtatos(long long, char , time_t );
82			void freeprivs(struct quotause *);
83			int alldigits(char *s);
84			int hasquota(struct fstab , int, char *);
85
86			void
87			usage(void)
88			{
89			(void)fprintf(stderr, "%s%s%s%s",
90			"usage: edquota [-u] [-p proto-username] username \| uid ...\n",
91			" edquota -g [-p proto-groupname] groupname \| gid ...\n",
92			" edquota -t [-u]\n",
93			" edquota -g -t\n");
94			exit(1);
95			}
96
97			int
98			main(int argc, char *argv[])
99			{
100			struct quotause qup, protoprivs, *curprivs;
101			u_int id, protoid;
102			int quotatype, tmpfd;
103			char *protoname = NULL;
104			int ch;
105			int tflag = 0, pflag = 0;
106
107			if (argc < 2)
108			usage();
109			if (getuid())
110			errx(1, "%s", strerror(EPERM));
111			quotatype = USRQUOTA;
112			while ((ch = getopt(argc, argv, "ugtp:")) != -1) {
113			switch(ch) {
114			case 'p':
115			protoname = optarg;
116			pflag = 1;
117			break;
118			case 'g':
119			quotatype = GRPQUOTA;
120			break;
121			case 'u':
122			quotatype = USRQUOTA;
123			break;
124			case 't':
125			tflag = 1;
126			break;
127			default:
128			usage();
129			}
130			}
131			argc -= optind;
132			argv += optind;
133			if (pflag) {
134			if (getentry(protoname, quotatype, &protoid) == -1)
135			exit(1);
136			protoprivs = getprivs(protoid, quotatype);
137			for (qup = protoprivs; qup; qup = qup->next) {
138			qup->dqblk.dqb_btime = 0;
139			qup->dqblk.dqb_itime = 0;
140			}
141			while (argc-- > 0) {
142			if (getentry(*argv++, quotatype, &id) == -1)
143			continue;
144			putprivs(id, quotatype, protoprivs);
145			}
146			exit(0);
147			}
148			if ((tmpfd = mkstemp(tmpfil)) == -1)
149			errx(1, "%s", tmpfil);
150			if (tflag) {
151			protoprivs = getprivs(0, quotatype);
152			if (writetimes(protoprivs, tmpfd, quotatype) == 0) {
153			unlink(tmpfil);
154			exit(1);
155			}
156			if (editit(tmpfil) == -1) {
157			int saved_errno = errno;
158			unlink(tmpfil);
159			errc(1, saved_errno, "error starting editor");
160			}
161			if (readtimes(protoprivs, tmpfd))
162			putprivs(0, quotatype, protoprivs);
163			freeprivs(protoprivs);
164			unlink(tmpfil);
165			exit(0);
166			}
167			for ( ; argc > 0; argc--, argv++) {
168			if (getentry(*argv, quotatype, &id) == -1)
169			continue;
170			curprivs = getprivs(id, quotatype);
171			if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0)
172			continue;
173			if (editit(tmpfil) == -1) {
174			warn("error starting editor");
175			continue;
176			}
177			if (readprivs(curprivs, tmpfd))
178			putprivs(id, quotatype, curprivs);
179			freeprivs(curprivs);
180			}
181			close(tmpfd);
182			unlink(tmpfil);
183			exit(0);
184			}
185
186			/*
187			* This routine converts a name for a particular quota type to
188			* an identifier. This routine must agree with the kernel routine
189			* getinoquota as to the interpretation of quota types.
190			*/
191			int
192			getentry(char name, int quotatype, u_int idp)
193			{
194			struct passwd *pw;
195			struct group *gr;
196			u_int id;
197
198			switch(quotatype) {
199			case USRQUOTA:
200			if ((pw = getpwnam(name))) {
201			*idp = pw->pw_uid;
202			return 0;
203			} else if (alldigits(name)) {
204			if ((id = strtoul(name, NULL, 10)) <= UID_MAX) {
205			*idp = id;
206			return 0;
207			}
208			}
209			warnx("%s: no such user", name);
210			break;
211			case GRPQUOTA:
212			if ((gr = getgrnam(name))) {
213			*idp = gr->gr_gid;
214			return 0;
215			} else if (alldigits(name)) {
216			if ((id = strtoul(name, NULL, 10)) <= GID_MAX) {
217			*idp = id;
218			return (0);
219			}
220			}
221			warnx("%s: no such group", name);
222			break;
223			default:
224			warnx("%d: unknown quota type", quotatype);
225			break;
226			}
227			sleep(1);
228			return(-1);
229			}
230
231			/*
232			* Collect the requested quota information.
233			*/
234			struct quotause *
235			getprivs(u_int id, int quotatype)
236			{
237			struct fstab *fs;
238			struct quotause qup, quptail;
239			struct quotause *quphead;
240			int qcmd, qupsize, fd;
241			u_int mid;
242			char *qfpathname;
243			static int warned = 0;
244			size_t qfpathnamelen;
245
246			setfsent();
247			quphead = NULL;
248			qcmd = QCMD(Q_GETQUOTA, quotatype);
249			while ((fs = getfsent())) {
250			if (strcmp(fs->fs_vfstype, "ffs") &&
251			strcmp(fs->fs_vfstype, "ufs") &&
252			strcmp(fs->fs_vfstype, "mfs"))
253			continue;
254			if (!hasquota(fs, quotatype, &qfpathname))
255			continue;
256			qfpathnamelen = strlen(qfpathname);
257			qupsize = sizeof(*qup) + qfpathnamelen;
258			if ((qup = malloc(qupsize)) == NULL)
259			errx(2, "out of memory");
260			if (quotactl(fs->fs_file, qcmd, id, (char *)&qup->dqblk) != 0) {
261			if (errno == EOPNOTSUPP && !warned) {
262			warned++;
263			(void)fprintf(stderr, "Warning: %s\n",
264			"Quotas are not compiled into this kernel");
265			sleep(3);
266			}
267			if (getentry(quotagroup, GRPQUOTA, &mid) == -1) {
268			warned++;
269			(void)fprintf(stderr, "Warning: "
270			"group %s not known, skipping %s\n",
271			quotagroup, fs->fs_file);
272			}
273			if ((fd = open(qfpathname, O_RDONLY)) < 0) {
274			fd = open(qfpathname, O_RDWR\|O_CREAT, 0640);
275			if (fd < 0 && errno != ENOENT) {
276			perror(qfpathname);
277			free(qup);
278			continue;
279			}
280			(void)fprintf(stderr, "Creating quota file %s\n",
281			qfpathname);
282			sleep(3);
283			(void)fchown(fd, getuid(), mid);
284			(void)fchmod(fd, 0640);
285			}
286			lseek(fd, (off_t)(id * sizeof(struct dqblk)), SEEK_SET);
287			switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) {
288			case 0: /* EOF */
289			/*
290			* Convert implicit 0 quota (EOF)
291			* into an explicit one (zero'ed dqblk)
292			*/
293			bzero((caddr_t)&qup->dqblk,
294			sizeof(struct dqblk));
295			break;
296
297			case sizeof(struct dqblk): /* OK */
298			break;
299
300			default: /* ERROR */
301			warn("read error in %s", qfpathname);
302			close(fd);
303			free(qup);
304			continue;
305			}
306			close(fd);
307			}
308			strlcpy(qup->qfname, qfpathname, qfpathnamelen + 1);
309			strlcpy(qup->fsname, fs->fs_file, sizeof qup->fsname);
310			if (quphead == NULL)
311			quphead = qup;
312			else
313			quptail->next = qup;
314			quptail = qup;
315			qup->next = NULL;
316			}
317			endfsent();
318			return(quphead);
319			}
320
321			/*
322			* Store the requested quota information.
323			*/
324			void
325			putprivs(long id, int quotatype, struct quotause *quplist)
326			{
327			struct quotause *qup;
328			int qcmd, fd;
329
330			qcmd = QCMD(Q_SETQUOTA, quotatype);
331			for (qup = quplist; qup; qup = qup->next) {
332			if (quotactl(qup->fsname, qcmd, id, (char *)&qup->dqblk) == 0)
333			continue;
334			if ((fd = open(qup->qfname, O_WRONLY)) < 0) {
335			perror(qup->qfname);
336			} else {
337			lseek(fd, (off_t)(id * sizeof (struct dqblk)), SEEK_SET);
338			if (write(fd, &qup->dqblk, sizeof (struct dqblk)) !=
339			sizeof (struct dqblk))
340			warn("%s", qup->qfname);
341			close(fd);
342			}
343			}
344			}
345
346			/*
347			* Execute an editor on the specified pathname, which is interpreted
348			* from the shell. This means flags may be included.
349			*
350			* Returns -1 on error, or the exit value on success.
351			*/
352			int
353			editit(const char *pathname)
354			{
355			char argp[] = {"sh", "-c", NULL, NULL}, ed, *p;
356			sig_t sighup, sigint, sigquit, sigchld;
357			pid_t pid;
358			int saved_errno, st, ret = -1;
359
360			ed = getenv("VISUAL");
361			if (ed == NULL \|\| ed[0] == '\0')
362			ed = getenv("EDITOR");
363			if (ed == NULL \|\| ed[0] == '\0')
364			ed = _PATH_VI;
365			if (asprintf(&p, "%s %s", ed, pathname) == -1)
366			return (-1);
367			argp[2] = p;
368
369			sighup = signal(SIGHUP, SIG_IGN);
370			sigint = signal(SIGINT, SIG_IGN);
371			sigquit = signal(SIGQUIT, SIG_IGN);
372			sigchld = signal(SIGCHLD, SIG_DFL);
373			if ((pid = fork()) == -1)
374			goto fail;
375			if (pid == 0) {
376			execv(_PATH_BSHELL, argp);
377			_exit(127);
378			}
379			while (waitpid(pid, &st, 0) == -1)
380			if (errno != EINTR)
381			goto fail;
382			if (!WIFEXITED(st))
383			errno = EINTR;
384			else
385			ret = WEXITSTATUS(st);
386
387			fail:
388			saved_errno = errno;
389			(void)signal(SIGHUP, sighup);
390			(void)signal(SIGINT, sigint);
391			(void)signal(SIGQUIT, sigquit);
392			(void)signal(SIGCHLD, sigchld);
393			free(p);
394			errno = saved_errno;
395			return (ret);
396			}
397
398			/*
399			* Convert a quotause list to an ASCII file.
400			*/
401			int
402			writeprivs(struct quotause quplist, int outfd, char name, int quotatype)
403			{
404			struct quotause *qup;
405			FILE *fp;
406
407			ftruncate(outfd, 0);
408			lseek(outfd, 0, SEEK_SET);
409			if ((fp = fdopen(dup(outfd), "w")) == NULL)
410			err(1, "%s", tmpfil);
411			(void)fprintf(fp, "Quotas for %s %s:\n", qfextension[quotatype], name);
412			for (qup = quplist; qup; qup = qup->next) {
413			(void)fprintf(fp, "%s: %s %d, limits (soft = %d, hard = %d)\n",
414			qup->fsname, "KBytes in use:",
415			(int)(dbtob((u_quad_t)qup->dqblk.dqb_curblocks) / 1024),
416			(int)(dbtob((u_quad_t)qup->dqblk.dqb_bsoftlimit) / 1024),
417			(int)(dbtob((u_quad_t)qup->dqblk.dqb_bhardlimit) / 1024));
418			(void)fprintf(fp, "%s %d, limits (soft = %d, hard = %d)\n",
419			"\tinodes in use:", qup->dqblk.dqb_curinodes,
420			qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit);
421			}
422			fclose(fp);
423			return(1);
424			}
425
426			/*
427			* Merge changes to an ASCII file into a quotause list.
428			*/
429			int
430			readprivs(struct quotause *quplist, int infd)
431			{
432			struct quotause *qup;
433			FILE *fp;
434			int cnt;
435			char *cp;
436			struct dqblk dqblk;
437			char *fsp, line1[BUFSIZ], line2[BUFSIZ];
438
439			lseek(infd, 0, SEEK_SET);
440			fp = fdopen(dup(infd), "r");
441			if (fp == NULL) {
442			warnx("can't re-read temp file!!");
443			return(0);
444			}
445			/*
446			* Discard title line, then read pairs of lines to process.
447			*/
448			(void)fgets(line1, sizeof (line1), fp);
449			while (fgets(line1, sizeof (line1), fp) != NULL &&
450			fgets(line2, sizeof (line2), fp) != NULL) {
451			if ((fsp = strtok(line1, " \t:")) == NULL) {
452			warnx("%s: bad format", line1);
453			return(0);
454			}
455			if ((cp = strtok(NULL, "\n")) == NULL) {
456			warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
457			return(0);
458			}
459			cnt = sscanf(cp,
460			" KBytes in use: %d, limits (soft = %d, hard = %d)",
461			&dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit,
462			&dqblk.dqb_bhardlimit);
463			if (cnt != 3) {
464			warnx("%s:%s: bad format", fsp, cp);
465			return(0);
466			}
467			dqblk.dqb_curblocks = btodb((u_quad_t)
468			dqblk.dqb_curblocks * 1024);
469			dqblk.dqb_bsoftlimit = btodb((u_quad_t)
470			dqblk.dqb_bsoftlimit * 1024);
471			dqblk.dqb_bhardlimit = btodb((u_quad_t)
472			dqblk.dqb_bhardlimit * 1024);
473			if ((cp = strtok(line2, "\n")) == NULL) {
474			warnx("%s: %s: bad format", fsp, line2);
475			return(0);
476			}
477			cnt = sscanf(cp,
478			"\tinodes in use: %d, limits (soft = %d, hard = %d)",
479			&dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit,
480			&dqblk.dqb_ihardlimit);
481			if (cnt != 3) {
482			warnx("%s: %s: bad format", fsp, line2);
483			return(0);
484			}
485			for (qup = quplist; qup; qup = qup->next) {
486			if (strcmp(fsp, qup->fsname))
487			continue;
488			/*
489			* Cause time limit to be reset when the quota
490			* is next used if previously had no soft limit
491			* or were under it, but now have a soft limit
492			* and are over it.
493			*/
494			if (dqblk.dqb_bsoftlimit &&
495			qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
496			(qup->dqblk.dqb_bsoftlimit == 0 \|\|
497			qup->dqblk.dqb_curblocks <
498			qup->dqblk.dqb_bsoftlimit))
499			qup->dqblk.dqb_btime = 0;
500			if (dqblk.dqb_isoftlimit &&
501			qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
502			(qup->dqblk.dqb_isoftlimit == 0 \|\|
503			qup->dqblk.dqb_curinodes <
504			qup->dqblk.dqb_isoftlimit))
505			qup->dqblk.dqb_itime = 0;
506			qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
507			qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
508			qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
509			qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
510			qup->flags \|= FOUND;
511			if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
512			dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes)
513			break;
514			warnx("%s: cannot change current allocation", fsp);
515			break;
516			}
517			}
518			fclose(fp);
519			/*
520			* Disable quotas for any filesystems that have not been found.
521			*/
522			for (qup = quplist; qup; qup = qup->next) {
523			if (qup->flags & FOUND) {
524			qup->flags &= ~FOUND;
525			continue;
526			}
527			qup->dqblk.dqb_bsoftlimit = 0;
528			qup->dqblk.dqb_bhardlimit = 0;
529			qup->dqblk.dqb_isoftlimit = 0;
530			qup->dqblk.dqb_ihardlimit = 0;
531			}
532			return(1);
533			}
534
535			/*
536			* Convert a quotause list to an ASCII file of grace times.
537			*/
538			int
539			writetimes(struct quotause *quplist, int outfd, int quotatype)
540			{
541			struct quotause *qup;
542			FILE *fp;
543
544			ftruncate(outfd, 0);
545			lseek(outfd, 0, SEEK_SET);
546			if ((fp = fdopen(dup(outfd), "w")) == NULL)
547			err(1, "%s", tmpfil);
548			(void)fprintf(fp,
549			"Time units may be: days, hours, minutes, or seconds\n");
550			(void)fprintf(fp,
551			"Grace period before enforcing soft limits for %ss:\n",
552			qfextension[quotatype]);
553			for (qup = quplist; qup; qup = qup->next) {
554			(void)fprintf(fp, "%s: block grace period: %s, ",
555			qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
556			(void)fprintf(fp, "file grace period: %s\n",
557			cvtstoa(qup->dqblk.dqb_itime));
558			}
559			fclose(fp);
560			return(1);
561			}
562
563			/*
564			* Merge changes of grace times in an ASCII file into a quotause list.
565			*/
566			int
567			readtimes(struct quotause *quplist, int infd)
568			{
569			struct quotause *qup;
570			FILE *fp;
571			int cnt;
572			char *cp;
573			long long itime, btime;
574			time_t iseconds, bseconds;
575			char *fsp, bunits[10], iunits[10], line1[BUFSIZ];
576
577			lseek(infd, 0, SEEK_SET);
578			fp = fdopen(dup(infd), "r");
579			if (fp == NULL) {
580			warnx("can't re-read temp file!!");
581			return(0);
582			}
583			/*
584			* Discard two title lines, then read lines to process.
585			*/
586			(void)fgets(line1, sizeof (line1), fp);
587			(void)fgets(line1, sizeof (line1), fp);
588			while (fgets(line1, sizeof (line1), fp) != NULL) {
589			if ((fsp = strtok(line1, " \t:")) == NULL) {
590			warnx("%s: bad format", line1);
591			return(0);
592			}
593			if ((cp = strtok(NULL, "\n")) == NULL) {
594			warnx("%s: %s: bad format", fsp,
595			&fsp[strlen(fsp) + 1]);
596			return(0);
597			}
598			cnt = sscanf(cp,
599			" block grace period: %lld %9s file grace period: %lld %9s",
600			&btime, bunits, &itime, iunits);
601			if (cnt != 4) {
602			warnx("%s:%s: bad format", fsp, cp);
603			return(0);
604			}
605			if (cvtatos(btime, bunits, &bseconds) == 0)
606			return(0);
607			if (cvtatos(itime, iunits, &iseconds) == 0)
608			return(0);
609			for (qup = quplist; qup; qup = qup->next) {
610			if (strcmp(fsp, qup->fsname))
611			continue;
612			qup->dqblk.dqb_btime = bseconds;
613			qup->dqblk.dqb_itime = iseconds;
614			qup->flags \|= FOUND;
615			break;
616			}
617			}
618			fclose(fp);
619			/*
620			* reset default grace periods for any filesystems
621			* that have not been found.
622			*/
623			for (qup = quplist; qup; qup = qup->next) {
624			if (qup->flags & FOUND) {
625			qup->flags &= ~FOUND;
626			continue;
627			}
628			qup->dqblk.dqb_btime = 0;
629			qup->dqblk.dqb_itime = 0;
630			}
631			return(1);
632			}
633
634			/*
635			* Convert seconds to ASCII times.
636			*/
637			char *
638			cvtstoa(time_t time)
639			{
640			static char buf[20];
641
642			if (time % (24 * 60 * 60) == 0) {
643			time /= 24 * 60 * 60;
644			(void)snprintf(buf, sizeof buf, "%lld day%s", (long long)time,
645			time == 1 ? "" : "s");
646			} else if (time % (60 * 60) == 0) {
647			time /= 60 * 60;
648			(void)snprintf(buf, sizeof buf, "%lld hour%s", (long long)time,
649			time == 1 ? "" : "s");
650			} else if (time % 60 == 0) {
651			time /= 60;
652			(void)snprintf(buf, sizeof buf, "%lld minute%s",
653			(long long)time, time == 1 ? "" : "s");
654			} else
655			(void)snprintf(buf, sizeof buf, "%lld second%s",
656			(long long)time, time == 1 ? "" : "s");
657			return(buf);
658			}
659
660			/*
661			* Convert ASCII input times to seconds.
662			*/
663			int
664			cvtatos(long long time, char units, time_t seconds)
665			{
666
667			if (bcmp(units, "second", 6) == 0)
668			*seconds = time;
669			else if (bcmp(units, "minute", 6) == 0)
670			seconds = time 60;
671			else if (bcmp(units, "hour", 4) == 0)
672			seconds = time 60 * 60;
673			else if (bcmp(units, "day", 3) == 0)
674			seconds = time 24 * 60 * 60;
675			else {
676			(void)printf("%s: bad units, specify %s\n", units,
677			"days, hours, minutes, or seconds");
678			return(0);
679			}
680			return(1);
681			}
682
683			/*
684			* Free a list of quotause structures.
685			*/
686			void
687			freeprivs(struct quotause *quplist)
688			{
689			struct quotause qup, nextqup;
690
691			for (qup = quplist; qup; qup = nextqup) {
692			nextqup = qup->next;
693			free(qup);
694			}
695			}
696
697			/*
698			* Check whether a string is completely composed of digits.
699			*/
700			int
701			alldigits(char *s)
702			{
703			int c;
704
705			c = (unsigned char)*s++;
706			do {
707			if (!isdigit(c))
708			return(0);
709			} while ((c = (unsigned char)*s++));
710			return(1);
711			}
712
713			/*
714			* Check to see if a particular quota is to be enabled.
715			*/
716			int
717			hasquota(struct fstab fs, int type, char *qfnamep)
718			{
719			char *opt;
720			char *cp;
721			static char initname, usrname[100], grpname[100];
722			static char buf[BUFSIZ];
723
724			if (!initname) {
725			(void)snprintf(usrname, sizeof usrname, "%s%s",
726			qfextension[USRQUOTA], qfname);
727			(void)snprintf(grpname, sizeof grpname, "%s%s",
728			qfextension[GRPQUOTA], qfname);
729			initname = 1;
730			}
731			strlcpy(buf, fs->fs_mntops, sizeof buf);
732			for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
733			if ((cp = strchr(opt, '=')))
734			*cp++ = '\0';
735			if (type == USRQUOTA && strcmp(opt, usrname) == 0)
736			break;
737			if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
738			break;
739			}
740			if (!opt)
741			return(0);
742			if (cp) {
743			*qfnamep = cp;
744			return(1);
745			}
746			(void)snprintf(buf, sizeof buf, "%s/%s.%s",
747			fs->fs_file, qfname, qfextension[type]);
748			*qfnamep = buf;
749			return(1);
750			}