1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Utility routine.
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4 | *
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5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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6 | *
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7 | * This program is free software; you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation; either version 2 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * This program is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | * General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 | *
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21 | */
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22 |
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23 | #include "libbb.h"
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24 | #include <string.h>
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25 | #include <crypt.h>
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26 |
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27 |
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28 | char *pw_encrypt(const char *clear, const char *salt)
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29 | {
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30 | static char cipher[128];
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31 | char *cp;
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32 |
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33 | #ifdef CONFIG_FEATURE_SHA1_PASSWORDS
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34 | if (strncmp(salt, "$2$", 3) == 0) {
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35 | return sha1_crypt(clear);
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36 | }
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37 | #endif
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38 | cp = (char *) crypt(clear, salt);
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39 | /* if crypt (a nonstandard crypt) returns a string too large,
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40 | truncate it so we don't overrun buffers and hope there is
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41 | enough security in what's left */
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42 | safe_strncpy(cipher, cp, sizeof(cipher));
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43 | return cipher;
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44 | }
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45 |
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