| 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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