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Makefile
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Makefile.depend
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__main.c
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abort.c
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amd64
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arp.c
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assert.c
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bcd.c
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bootp.c
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bootp.h
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bootparam.c
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bootparam.h
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bzipfs.c
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cd9660.c
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cd9660read.c
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close.c
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closeall.c
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crc32_libkern.c
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dev.c
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dosfs.c
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dosfs.h
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environment.c
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ether.c
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ext2fs.c
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fstat.c
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geli
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getopt.c
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gets.c
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globals.c
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gpt.c
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gpt.h
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gzipfs.c
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hexdump.c
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i386
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in_cksum.c
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inet_ntoa.c
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ioctl.c
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iodesc.h
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ip.c
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libsa.3
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lseek.c
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mips
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net.c
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net.h
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netif.c
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netif.h
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nfs.c
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nfsv2.h
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nullfs.c
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open.c
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pager.c
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panic.c
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pkgfs.c
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powerpc
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printf.c
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random.c
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rarp.c
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read.c
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readdir.c
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rpc.c
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rpc.h
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rpcv2.h
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saioctl.h
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sbrk.c
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smbios.c
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smbios.h
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splitfs.c
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stand.h
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stat.c
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strcasecmp.c
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strdup.c
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strerror.c
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tftp.c
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tftp.h
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time.c
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twiddle.c
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udp.c
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ufs.c
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ufsread.c
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uuid_from_string.c
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uuid_to_string.c
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write.c
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x86
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xlocale_private.h
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zalloc.c
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zalloc_defs.h
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zalloc_malloc.c
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zalloc_mem.h
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zalloc_protos.h
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zfs
Editing: uuid_from_string.c
/*- * Copyright (c) 2015 M. Warner Losh <imp@FreeBSD.org> * * 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 THE AUTHOR 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 AUTHOR 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. * * $FreeBSD$ */ /* * Note: some comments taken from lib/libc/uuid/uuid_from_string.c * Copyright (c) 2002 Marcel Moolenaar * Copyright (c) 2002 Hiten Mahesh Pandya */ #include <stand.h> #include <uuid.h> static int hex2int(int ch) { if (ch >= '0' && ch <= '9') return ch - '0'; if (ch >= 'a' && ch <= 'f') return 10 + ch - 'a'; if (ch >= 'A' && ch <= 'F') return 10 + ch - 'A'; return 16; } static uint32_t fromhex(const char *s, int len, int *ok) { uint32_t v; int i, h; if (!*ok) return 0; v = 0; for (i = 0; i < len; i++) { h = hex2int(s[i]); if (h == 16) { *ok = 0; return v; } v = (v << 4) | h; } return v; } /* * uuid_from_string() - convert a string representation of an UUID into * a binary representation. * See also: * http://www.opengroup.org/onlinepubs/009629399/uuid_from_string.htm * * NOTE: The sequence field is in big-endian, while the time fields are in * native byte order. * * 01234567-89ab-cdef-0123-456789abcdef * 000000000011111111112222222222333333 * 012345678901234567890123456789012345 * - - - - * hhhhhhhh-hhhh-hhhh-bbbb-bbbbbbbbbbbb * */ void uuid_from_string(const char *s, uuid_t *u, uint32_t *status) { int ok = 1; int n; if (s == NULL || *s == '\0') { uuid_create_nil(u, status); return; } if (status != NULL) *status = uuid_s_invalid_string_uuid; if (strlen(s) != 36) return; /* Only support new format, check for all the right dashes */ if (s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-') return; /* native byte order */ u->time_low = fromhex(s , 8, &ok); u->time_mid = fromhex(s + 9, 4, &ok); u->time_hi_and_version = fromhex(s + 14, 4, &ok); /* Big endian, but presented as a whole number so decode as such */ u->clock_seq_hi_and_reserved = fromhex(s + 19, 2, &ok); u->clock_seq_low = fromhex(s + 21, 2, &ok); u->node[0] = fromhex(s + 24, 2, &ok); u->node[1] = fromhex(s + 26, 2, &ok); u->node[2] = fromhex(s + 28, 2, &ok); u->node[3] = fromhex(s + 30, 2, &ok); u->node[4] = fromhex(s + 32, 2, &ok); u->node[5] = fromhex(s + 34, 2, &ok); if (!ok) return; /* We have a successful scan. Check semantics... */ n = u->clock_seq_hi_and_reserved; if ((n & 0x80) != 0x00 && /* variant 0? */ (n & 0xc0) != 0x80 && /* variant 1? */ (n & 0xe0) != 0xc0) { /* variant 2? */ if (status != NULL) *status = uuid_s_bad_version; } else { if (status != NULL) *status = uuid_s_ok; } }
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