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78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routine.
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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#if ENABLE_USE_BB_CRYPT
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/*
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* DES and MD5 crypt implementations are taken from uclibc.
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* They were modified to not use static buffers.
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*/
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/* Common for them */
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static const uint8_t ascii64[] = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
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#include "pw_encrypt_des.c"
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#include "pw_encrypt_md5.c"
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/* Other advanced crypt ids: */
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/* $2$ or $2a$: Blowfish */
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/* $5$: SHA-256 */
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/* $6$: SHA-512 */
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/* TODO: implement SHA - http://people.redhat.com/drepper/SHA-crypt.txt */
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static struct const_des_ctx *des_cctx;
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static struct des_ctx *des_ctx;
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/* my_crypt returns malloc'ed data */
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static char *my_crypt(const char *key, const char *salt)
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{
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/* First, check if we are supposed to be using the MD5 replacement
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* instead of DES... */
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if (salt[0] == '$' && salt[1] == '1' && salt[2] == '$') {
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return md5_crypt(xzalloc(MD5_OUT_BUFSIZE), (unsigned char*)key, (unsigned char*)salt);
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}
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{
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if (!des_cctx)
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des_cctx = const_des_init();
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des_ctx = des_init(des_ctx, des_cctx);
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return des_crypt(des_ctx, xzalloc(DES_OUT_BUFSIZE), (unsigned char*)key, (unsigned char*)salt);
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}
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}
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/* So far nobody wants to have it public */
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static void my_crypt_cleanup(void)
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{
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free(des_cctx);
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free(des_ctx);
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des_cctx = NULL;
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des_ctx = NULL;
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}
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char* FAST_FUNC pw_encrypt(const char *clear, const char *salt, int cleanup)
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{
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char *encrypted;
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encrypted = my_crypt(clear, salt);
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if (cleanup)
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my_crypt_cleanup();
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return encrypted;
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}
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#else /* if !ENABLE_USE_BB_CRYPT */
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char* FAST_FUNC pw_encrypt(const char *clear, const char *salt, int cleanup)
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{
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return xstrdup(crypt(clear, salt));
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}
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#endif
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