NetBSD/usr.bin/quota/printquota.c
bouyer d9210c2405 Add a new libquota library, which contains some blocks to build and/or
parse quota plists; as well as a getfsquota() function to retrieve quotas
for a single id from a single filesystem (whatever filesystem this is:
a local quota-enabled fs or NFS). This is build on functions getufsquota()
(for local filesystems with UFS-like quotas) and getnfsquota();
which are also available to userland programs.
move functions from quota2_subr.c to libquota or libprop as appropriate,
and ajust in-tree quota tools.
move some declarations from kernel headers to either sys/quota.h or
quota/quota.h as appropriate. ufs/ufs/quota.h still installed because
it's needed by other installed ufs headers.
ufs/ufs/quota1.h still installed as a quick&dirty way to get a code
using the old quotactl() to compile (just include ufs/ufs/quota1.h instead of
ufs/ufs/quota.h - old code won't compile without this change and this is
on purpose).
Discussed on tech-kern@ and tech-net@ (long thread, but not much about
libquota itself ...)
2011-03-24 17:05:39 +00:00

287 lines
6.8 KiB
C

/* $NetBSD: printquota.c,v 1.6 2011/03/24 17:05:46 bouyer Exp $ */
/*
* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1980, 1990, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)quota.c 8.4 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: printquota.c,v 1.6 2011/03/24 17:05:46 bouyer Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
#include <inttypes.h>
#include "printquota.h"
/*
* convert 64bit value to a printable string
*/
const char *
intprt(char *buf, size_t len, uint64_t val, int flags, int hflag)
{
if (val == UQUAD_MAX)
return (len > sizeof("unlimited")) ? "unlimited" : "-";
if (flags & HN_B)
val = dbtob(val);
if (hflag) {
(void)humanize_number(buf, len, (int64_t)val, "", HN_AUTOSCALE,
flags);
return buf;
}
if (flags & HN_B) {
/* traditionnal display: blocks are in kilobytes */
val = val / 1024;
}
(void)snprintf(buf, len, "%" PRId64, val);
return buf;
}
/*
* Calculate the grace period and return a user-friendly string for it.
*/
#define MINUTE 60
#define HOUR (MINUTE * 60)
#define DAY (HOUR * 24)
#define WEEK (DAY * 7)
#define MONTH (DAY * 30)
#define YEAR (DAY * 355)
const char *
timeprt(char *buf, size_t len, time_t now, time_t seconds)
{
time_t years, months, weeks, days, hours, minutes;
if (now > seconds)
return "none";
seconds -= now;
minutes = (seconds + MINUTE / 2) / MINUTE;
hours = (seconds + HOUR / 2) / HOUR;
days = (seconds + DAY / 2) / DAY;
years = (seconds + YEAR / 2) / YEAR;
months = (seconds + MONTH / 2) / MONTH;
weeks = (seconds + WEEK / 2) / WEEK;
if (years >= 2) {
(void)snprintf(buf, len, "%" PRId64 "years", years);
return buf;
}
if (weeks > 9) {
(void)snprintf(buf, len, "%" PRId64 "months", months);
return buf;
}
if (days > 9) {
(void)snprintf(buf, len, "%" PRId64 "weeks", weeks);
return buf;
}
if (hours > 36) {
(void)snprintf(buf, len, "%" PRId64 "days", days);
return buf;
}
if (minutes > 60) {
(void)snprintf(buf, len, "%2d:%d",
(int)(minutes / 60), (int)(minutes % 60));
return buf;
}
(void)snprintf(buf, len, "%2d", (int)minutes);
return buf;
}
/*
* Calculate the grace period and return a precise string for it,
* either in seconds or in format xWyDzHtMuS
*/
const char *
timepprt(char *buf, size_t len, time_t seconds, int hflag)
{
ssize_t i = 0;
if (hflag == 0) {
(void)snprintf(buf, len, "%" PRId64, seconds);
return buf;
}
if ((seconds / WEEK) > 0) {
i += snprintf(buf + i, len - i, "%" PRId64 "W", seconds / WEEK);
seconds = seconds % WEEK;
}
if (len - i < 3 || seconds == 0)
return buf;
if ((seconds / DAY) > 0) {
i += snprintf(buf + i, len - i, "%" PRId64 "D", seconds / DAY);
seconds = seconds % DAY;
}
if (len - i < 4 || seconds == 0)
return buf;
if ((seconds / HOUR) > 0) {
i += snprintf(buf + i, len - i, "%" PRId64 "H", seconds / HOUR);
seconds = seconds % HOUR;
}
if (len - i < 4 || seconds == 0)
return buf;
if ((seconds / MINUTE) > 0) {
i += snprintf(buf + i , len - i, "%" PRId64 "M",
seconds / MINUTE);
seconds = seconds % MINUTE;
}
if (len - i < 4 || seconds == 0)
return buf;
(void)snprintf(buf + i, len - i, "%" PRId64 "S", seconds);
return buf;
}
/*
* convert a string of the form xWyDzHtMuS, or plain decimal, to
* a time in seconds
*/
int
timeprd(const char *str, time_t *valp)
{
char buf[20];
char *cur, *next, *end;
time_t val= 0;
strncpy(buf, str, sizeof(buf));
next = buf;
cur = strsep(&next, "Ww");
if (next != NULL) {
val = strtoumax(cur, &end, 10) * WEEK;
if (end[0] != '\0')
return EINVAL;
} else
next = cur;
cur = strsep(&next, "Dd");
if (next != NULL) {
val += strtoumax(cur, &end, 10) * DAY;
if (end[0] != '\0')
return EINVAL;
} else
next = cur;
cur = strsep(&next, "Hh");
if (next != NULL) {
val += strtoumax(cur, &end, 10) * HOUR;
if (end[0] != '\0')
return EINVAL;
} else
next = cur;
cur = strsep(&next, "Mm");
if (next != NULL) {
val += strtoumax(cur, &end, 10) * MINUTE;
if (end[0] != '\0')
return EINVAL;
} else
next = cur;
cur = strsep(&next, "Ss");
val += strtoumax(cur, &end, 10);
if (end[0] != '\0')
return EINVAL;
*valp = val;
return 0;
}
/*
* convert a string to a uint64 value
*/
int
intrd(char *str, uint64_t *val, u_int flags)
{
char *last = &str[strlen(str) - 1];
int ret;
if (*last >= '0' && *last <= '9') {
/* no unit provided, use default */
errno = 0;
*val = strtoumax(str, NULL, 10);
if (flags & HN_B) {
/* in kb, convert to disk blocks */
*val = btodb(*val * 1024);
}
return errno;
}
if (strcmp(str, "-") == 0 || strcmp(str, "unlimited") == 0) {
*val = UQUAD_MAX;
return 0;
}
if (flags & HN_B) {
if (*last == 'B' || *last == 'b')
*last = '\0';
}
ret = dehumanize_number(str, (int64_t *)val);
if (flags & HN_B)
*val = btodb(*val);
return ret;
}
int
alldigits(const char *s)
{
unsigned char c;
c = *s++;
do {
if (!isdigit(c))
return 0;
} while ((c = *s++) != 0);
return 1;
}