BSD 4.4 Lite Usr.bin Sources

1 files changed, 510 insertions, 0 deletions

diff --git a/usr.bin/quota/quota.c b/usr.bin/quota/quota.c
new file mode 100644
index 000000000000..1d18a131a4bf
--- /dev/null
+++ b/usr.bin/quota/quota.c
@@ -0,0 +1,510 @@
+/*
+ * 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[] = "@(#)quota.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ * Disk quota reporting program.
+ */
+#include <sys/param.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <ufs/ufs/quota.h>
+#include <stdio.h>
+#include <fstab.h>
+#include <ctype.h>
+#include <pwd.h>
+#include <grp.h>
+#include <errno.h>
+
+char *qfname = QUOTAFILENAME;
+char *qfextension[] = INITQFNAMES;
+
+struct quotause {
+	struct	quotause *next;
+	long	flags;
+	struct	dqblk dqblk;
+	char	fsname[MAXPATHLEN + 1];
+} *getprivs();
+#define	FOUND	0x01
+
+int	qflag;
+int	vflag;
+
+main(argc, argv)
+	char *argv[];
+{
+	int ngroups, gidset[NGROUPS];
+	int i, gflag = 0, uflag = 0;
+	char ch;
+	extern char *optarg;
+	extern int optind, errno;
+
+	if (quotactl("/", 0, 0, (caddr_t)0) < 0 && errno == EOPNOTSUPP) {
+		fprintf(stderr, "There are no quotas on this system\n");
+		exit(0);
+	}
+	while ((ch = getopt(argc, argv, "ugvq")) != EOF) {
+		switch(ch) {
+		case 'g':
+			gflag++;
+			break;
+		case 'u':
+			uflag++;
+			break;
+		case 'v':
+			vflag++;
+			break;
+		case 'q':
+			qflag++;
+			break;
+		default:
+			usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+	if (!uflag && !gflag)
+		uflag++;
+	if (argc == 0) {
+		if (uflag)
+			showuid(getuid());
+		if (gflag) {
+			ngroups = getgroups(NGROUPS, gidset);
+			if (ngroups < 0) {
+				perror("quota: getgroups");
+				exit(1);
+			}
+			for (i = 1; i < ngroups; i++)
+				showgid(gidset[i]);
+		}
+		exit(0);
+	}
+	if (uflag && gflag)
+		usage();
+	if (uflag) {
+		for (; argc > 0; argc--, argv++) {
+			if (alldigits(*argv))
+				showuid(atoi(*argv));
+			else
+				showusrname(*argv);
+		}
+		exit(0);
+	}
+	if (gflag) {
+		for (; argc > 0; argc--, argv++) {
+			if (alldigits(*argv))
+				showgid(atoi(*argv));
+			else
+				showgrpname(*argv);
+		}
+		exit(0);
+	}
+}
+
+usage()
+{
+
+	fprintf(stderr, "%s\n%s\n%s\n",
+		"Usage: quota [-guqv]",
+		"\tquota [-qv] -u username ...",
+		"\tquota [-qv] -g groupname ...");
+	exit(1);
+}
+
+/*
+ * Print out quotas for a specified user identifier.
+ */
+showuid(uid)
+	u_long uid;
+{
+	struct passwd *pwd = getpwuid(uid);
+	u_long myuid;
+	char *name;
+
+	if (pwd == NULL)
+		name = "(no account)";
+	else
+		name = pwd->pw_name;
+	myuid = getuid();
+	if (uid != myuid && myuid != 0) {
+		printf("quota: %s (uid %d): permission denied\n", name, uid);
+		return;
+	}
+	showquotas(USRQUOTA, uid, name);
+}
+
+/*
+ * Print out quotas for a specifed user name.
+ */
+showusrname(name)
+	char *name;
+{
+	struct passwd *pwd = getpwnam(name);
+	u_long myuid;
+
+	if (pwd == NULL) {
+		fprintf(stderr, "quota: %s: unknown user\n", name);
+		return;
+	}
+	myuid = getuid();
+	if (pwd->pw_uid != myuid && myuid != 0) {
+		fprintf(stderr, "quota: %s (uid %d): permission denied\n",
+		    name, pwd->pw_uid);
+		return;
+	}
+	showquotas(USRQUOTA, pwd->pw_uid, name);
+}
+
+/*
+ * Print out quotas for a specified group identifier.
+ */
+showgid(gid)
+	u_long gid;
+{
+	struct group *grp = getgrgid(gid);
+	int ngroups, gidset[NGROUPS];
+	register int i;
+	char *name;
+
+	if (grp == NULL)
+		name = "(no entry)";
+	else
+		name = grp->gr_name;
+	ngroups = getgroups(NGROUPS, gidset);
+	if (ngroups < 0) {
+		perror("quota: getgroups");
+		return;
+	}
+	for (i = 1; i < ngroups; i++)
+		if (gid == gidset[i])
+			break;
+	if (i >= ngroups && getuid() != 0) {
+		fprintf(stderr, "quota: %s (gid %d): permission denied\n",
+		    name, gid);
+		return;
+	}
+	showquotas(GRPQUOTA, gid, name);
+}
+
+/*
+ * Print out quotas for a specifed group name.
+ */
+showgrpname(name)
+	char *name;
+{
+	struct group *grp = getgrnam(name);
+	int ngroups, gidset[NGROUPS];
+	register int i;
+
+	if (grp == NULL) {
+		fprintf(stderr, "quota: %s: unknown group\n", name);
+		return;
+	}
+	ngroups = getgroups(NGROUPS, gidset);
+	if (ngroups < 0) {
+		perror("quota: getgroups");
+		return;
+	}
+	for (i = 1; i < ngroups; i++)
+		if (grp->gr_gid == gidset[i])
+			break;
+	if (i >= ngroups && getuid() != 0) {
+		fprintf(stderr, "quota: %s (gid %d): permission denied\n",
+		    name, grp->gr_gid);
+		return;
+	}
+	showquotas(GRPQUOTA, grp->gr_gid, name);
+}
+
+showquotas(type, id, name)
+	int type;
+	u_long id;
+	char *name;
+{
+	register struct quotause *qup;
+	struct quotause *quplist, *getprivs();
+	char *msgi, *msgb, *timeprt();
+	int myuid, fd, lines = 0;
+	static int first;
+	static time_t now;
+
+	if (now == 0)
+		time(&now);
+	quplist = getprivs(id, type);
+	for (qup = quplist; qup; qup = qup->next) {
+		if (!vflag &&
+		    qup->dqblk.dqb_isoftlimit == 0 &&
+		    qup->dqblk.dqb_ihardlimit == 0 &&
+		    qup->dqblk.dqb_bsoftlimit == 0 &&
+		    qup->dqblk.dqb_bhardlimit == 0)
+			continue;
+		msgi = (char *)0;
+		if (qup->dqblk.dqb_ihardlimit &&
+		    qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_ihardlimit)
+			msgi = "File limit reached on";
+		else if (qup->dqblk.dqb_isoftlimit &&
+		    qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_isoftlimit)
+			if (qup->dqblk.dqb_itime > now)
+				msgi = "In file grace period on";
+			else
+				msgi = "Over file quota on";
+		msgb = (char *)0;
+		if (qup->dqblk.dqb_bhardlimit &&
+		    qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bhardlimit)
+			msgb = "Block limit reached on";
+		else if (qup->dqblk.dqb_bsoftlimit &&
+		    qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit)
+			if (qup->dqblk.dqb_btime > now)
+				msgb = "In block grace period on";
+			else
+				msgb = "Over block quota on";
+		if (qflag) {
+			if ((msgi != (char *)0 || msgb != (char *)0) &&
+			    lines++ == 0)
+				heading(type, id, name, "");
+			if (msgi != (char *)0)
+				printf("\t%s %s\n", msgi, qup->fsname);
+			if (msgb != (char *)0)
+				printf("\t%s %s\n", msgb, qup->fsname);
+			continue;
+		}
+		if (vflag ||
+		    qup->dqblk.dqb_curblocks ||
+		    qup->dqblk.dqb_curinodes) {
+			if (lines++ == 0)
+				heading(type, id, name, "");
+			printf("%15s%8d%c%7d%8d%8s"
+				, qup->fsname
+				, dbtob(qup->dqblk.dqb_curblocks) / 1024
+				, (msgb == (char *)0) ? ' ' : '*'
+				, dbtob(qup->dqblk.dqb_bsoftlimit) / 1024
+				, dbtob(qup->dqblk.dqb_bhardlimit) / 1024
+				, (msgb == (char *)0) ? ""
+				    : timeprt(qup->dqblk.dqb_btime));
+			printf("%8d%c%7d%8d%8s\n"
+				, qup->dqblk.dqb_curinodes
+				, (msgi == (char *)0) ? ' ' : '*'
+				, qup->dqblk.dqb_isoftlimit
+				, qup->dqblk.dqb_ihardlimit
+				, (msgi == (char *)0) ? ""
+				    : timeprt(qup->dqblk.dqb_itime)
+			);
+			continue;
+		}
+	}
+	if (!qflag && lines == 0)
+		heading(type, id, name, "none");
+}
+
+heading(type, id, name, tag)
+	int type;
+	u_long id;
+	char *name, *tag;
+{
+
+	printf("Disk quotas for %s %s (%cid %d): %s\n", qfextension[type],
+	    name, *qfextension[type], id, tag);
+	if (!qflag && tag[0] == '\0') {
+		printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n"
+			, "Filesystem"
+			, "blocks"
+			, "quota"
+			, "limit"
+			, "grace"
+			, "files"
+			, "quota"
+			, "limit"
+			, "grace"
+		);
+	}
+}
+
+/*
+ * Calculate the grace period and return a printable string for it.
+ */
+char *
+timeprt(seconds)
+	time_t seconds;
+{
+	time_t hours, minutes;
+	static char buf[20];
+	static time_t now;
+
+	if (now == 0)
+		time(&now);
+	if (now > seconds)
+		return ("none");
+	seconds -= now;
+	minutes = (seconds + 30) / 60;
+	hours = (minutes + 30) / 60;
+	if (hours >= 36) {
+		sprintf(buf, "%ddays", (hours + 12) / 24);
+		return (buf);
+	}
+	if (minutes >= 60) {
+		sprintf(buf, "%2d:%d", minutes / 60, minutes % 60);
+		return (buf);
+	}
+	sprintf(buf, "%2d", minutes);
+	return (buf);
+}
+
+/*
+ * Collect the requested quota information.
+ */
+struct quotause *
+getprivs(id, quotatype)
+	register long id;
+	int quotatype;
+{
+	register struct fstab *fs;
+	register struct quotause *qup, *quptail;
+	struct quotause *quphead;
+	char *qfpathname;
+	int qcmd, fd;
+
+	setfsent();
+	quphead = (struct quotause *)0;
+	qcmd = QCMD(Q_GETQUOTA, quotatype);
+	while (fs = getfsent()) {
+		if (strcmp(fs->fs_vfstype, "ufs"))
+			continue;
+		if (!hasquota(fs, quotatype, &qfpathname))
+			continue;
+		if ((qup = (struct quotause *)malloc(sizeof *qup)) == NULL) {
+			fprintf(stderr, "quota: out of memory\n");
+			exit(2);
+		}
+		if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) {
+			if ((fd = open(qfpathname, O_RDONLY)) < 0) {
+				perror(qfpathname);
+				free(qup);
+				continue;
+			}
+			lseek(fd, (long)(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);
+				free(qup);
+				continue;
+			}
+			close(fd);
+		}
+		strcpy(qup->fsname, fs->fs_file);
+		if (quphead == NULL)
+			quphead = qup;
+		else
+			quptail->next = qup;
+		quptail = qup;
+		qup->next = 0;
+	}
+	endfsent();
+	return (quphead);
+}
+
+/*
+ * Check to see if a particular quota is to be enabled.
+ */
+hasquota(fs, type, qfnamep)
+	register struct fstab *fs;
+	int type;
+	char **qfnamep;
+{
+	register char *opt;
+	char *cp, *index(), *strtok();
+	static char initname, usrname[100], grpname[100];
+	static char buf[BUFSIZ];
+
+	if (!initname) {
+		sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname);
+		sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname);
+		initname = 1;
+	}
+	strcpy(buf, fs->fs_mntops);
+	for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
+		if (cp = index(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);
+}
+
+alldigits(s)
+	register char *s;
+{
+	register c;
+
+	c = *s++;
+	do {
+		if (!isdigit(c))
+			return (0);
+	} while (c = *s++);
+	return (1);
+}