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Makefile
(312 B)
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Makefile.depend
(319 B)
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README
(896 B)
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bitmap.c
(3 KB)
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bitmap.h
(1.85 KB)
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cpdir.c
(3.39 KB)
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grupd.c
(2.62 KB)
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psdate.c
(5.84 KB)
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psdate.h
(1.66 KB)
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pw.8
(26.95 KB)
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pw.c
(11.78 KB)
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pw.conf.5
(8.52 KB)
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pw.h
(3.74 KB)
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pw_conf.c
(13.03 KB)
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pw_group.c
(14.65 KB)
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pw_log.c
(3.4 KB)
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pw_nis.c
(2.62 KB)
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pw_user.c
(43.84 KB)
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pw_utils.c
(2.58 KB)
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pw_vpw.c
(4.41 KB)
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pwupd.c
(3.39 KB)
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pwupd.h
(4.61 KB)
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rm_r.c
(2.42 KB)
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strtounum.c
(2.07 KB)
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tests
Editing: bitmap.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (C) 1996 * David L. Nugent. All rights reserved. * * 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. * * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT 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 DAVID L. NUGENT 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 const char rcsid[] = "$FreeBSD$"; #endif /* not lint */ #include <stdlib.h> #include <string.h> #include "bitmap.h" struct bitmap bm_alloc(int size) { struct bitmap bm; int szmap = (size / 8) + !!(size % 8); bm.size = size; bm.map = malloc(szmap); if (bm.map) memset(bm.map, 0, szmap); return bm; } void bm_dealloc(struct bitmap * bm) { free(bm->map); } static void bm_getmask(int *pos, unsigned char *bmask) { *bmask = (unsigned char) (1 << (*pos % 8)); *pos /= 8; } void bm_setbit(struct bitmap * bm, int pos) { unsigned char bmask; bm_getmask(&pos, &bmask); bm->map[pos] |= bmask; } void bm_clrbit(struct bitmap * bm, int pos) { unsigned char bmask; bm_getmask(&pos, &bmask); bm->map[pos] &= ~bmask; } int bm_isset(struct bitmap * bm, int pos) { unsigned char bmask; bm_getmask(&pos, &bmask); return !!(bm->map[pos] & bmask); } int bm_firstunset(struct bitmap * bm) { int szmap = (bm->size / 8) + !!(bm->size % 8); int at = 0; int pos = 0; while (pos < szmap) { unsigned char bmv = bm->map[pos++]; unsigned char bmask = 1; while (bmask & 0xff) { if ((bmv & bmask) == 0) return at; bmask <<= 1; ++at; } } return at; } int bm_lastset(struct bitmap * bm) { int szmap = (bm->size / 8) + !!(bm->size % 8); int at = 0; int pos = 0; int ofs = 0; while (pos < szmap) { unsigned char bmv = bm->map[pos++]; unsigned char bmask = 1; while (bmask & 0xff) { if ((bmv & bmask) != 0) ofs = at; bmask <<= 1; ++at; } } return ofs; }
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