Update - OpenSSL 1.1.1-pre7-dev
This commit is contained in:
+113
-39
@@ -1,5 +1,5 @@
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/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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@@ -12,10 +12,17 @@
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#include "internal/cryptlib.h"
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#include <openssl/evp.h>
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#include "evp_locl.h"
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#include "internal/evp_int.h"
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static unsigned char conv_ascii2bin(unsigned char a,
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const unsigned char *table);
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static int evp_encodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
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const unsigned char *f, int dlen);
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static int evp_decodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
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const unsigned char *f, int n);
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static unsigned char conv_ascii2bin(unsigned char a);
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#ifndef CHARSET_EBCDIC
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# define conv_bin2ascii(a) (data_bin2ascii[(a)&0x3f])
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# define conv_bin2ascii(a, table) ((table)[(a)&0x3f])
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#else
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/*
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* We assume that PEM encoded files are EBCDIC files (i.e., printable text
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@@ -23,7 +30,7 @@ static unsigned char conv_ascii2bin(unsigned char a);
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* (text) format again. (No need for conversion in the conv_bin2ascii macro,
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* as the underlying textstring data_bin2ascii[] is already EBCDIC)
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*/
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# define conv_bin2ascii(a) (data_bin2ascii[(a)&0x3f])
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# define conv_bin2ascii(a, table) ((table)[(a)&0x3f])
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#endif
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/*-
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@@ -38,8 +45,13 @@ static unsigned char conv_ascii2bin(unsigned char a);
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#define CHUNKS_PER_LINE (64/4)
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#define CHAR_PER_LINE (64+1)
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static const unsigned char data_bin2ascii[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ\
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abcdefghijklmnopqrstuvwxyz0123456789+/";
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static const unsigned char data_bin2ascii[65] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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/* SRP uses a different base64 alphabet */
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static const unsigned char srpdata_bin2ascii[65] =
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"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz./";
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/*-
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* 0xF0 is a EOLN
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@@ -76,20 +88,39 @@ static const unsigned char data_ascii2bin[128] = {
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0x31, 0x32, 0x33, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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};
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static const unsigned char srpdata_ascii2bin[128] = {
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xE0, 0xF0, 0xFF, 0xFF, 0xF1, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xE0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF2, 0x3E, 0x3F,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF,
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0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10,
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0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
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0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
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0x21, 0x22, 0x23, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A,
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0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32,
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0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
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0x3B, 0x3C, 0x3D, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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};
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#ifndef CHARSET_EBCDIC
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static unsigned char conv_ascii2bin(unsigned char a)
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static unsigned char conv_ascii2bin(unsigned char a, const unsigned char *table)
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{
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if (a & 0x80)
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return B64_ERROR;
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return data_ascii2bin[a];
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return table[a];
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}
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#else
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static unsigned char conv_ascii2bin(unsigned char a)
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static unsigned char conv_ascii2bin(unsigned char a, const unsigned char *table)
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{
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a = os_toascii[a];
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if (a & 0x80)
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return B64_ERROR;
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return data_ascii2bin[a];
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return table[a];
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}
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#endif
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@@ -115,11 +146,17 @@ int EVP_ENCODE_CTX_num(EVP_ENCODE_CTX *ctx)
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return ctx->num;
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}
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void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags)
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{
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ctx->flags = flags;
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}
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void EVP_EncodeInit(EVP_ENCODE_CTX *ctx)
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{
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ctx->length = 48;
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ctx->num = 0;
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ctx->line_num = 0;
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ctx->flags = 0;
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}
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int EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
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@@ -142,21 +179,27 @@ int EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
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memcpy(&(ctx->enc_data[ctx->num]), in, i);
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in += i;
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inl -= i;
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j = EVP_EncodeBlock(out, ctx->enc_data, ctx->length);
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j = evp_encodeblock_int(ctx, out, ctx->enc_data, ctx->length);
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ctx->num = 0;
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out += j;
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*(out++) = '\n';
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total = j;
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if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0) {
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*(out++) = '\n';
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total++;
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}
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*out = '\0';
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total = j + 1;
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}
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while (inl >= ctx->length && total <= INT_MAX) {
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j = EVP_EncodeBlock(out, in, ctx->length);
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j = evp_encodeblock_int(ctx, out, in, ctx->length);
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in += ctx->length;
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inl -= ctx->length;
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out += j;
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*(out++) = '\n';
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total += j;
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if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0) {
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*(out++) = '\n';
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total++;
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}
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*out = '\0';
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total += j + 1;
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}
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if (total > INT_MAX) {
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/* Too much output data! */
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@@ -176,35 +219,43 @@ void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl)
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unsigned int ret = 0;
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if (ctx->num != 0) {
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ret = EVP_EncodeBlock(out, ctx->enc_data, ctx->num);
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out[ret++] = '\n';
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ret = evp_encodeblock_int(ctx, out, ctx->enc_data, ctx->num);
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if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0)
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out[ret++] = '\n';
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out[ret] = '\0';
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ctx->num = 0;
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}
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*outl = ret;
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}
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int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int dlen)
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static int evp_encodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
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const unsigned char *f, int dlen)
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{
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int i, ret = 0;
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unsigned long l;
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const unsigned char *table;
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if (ctx != NULL && (ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0)
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table = srpdata_bin2ascii;
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else
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table = data_bin2ascii;
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for (i = dlen; i > 0; i -= 3) {
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if (i >= 3) {
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l = (((unsigned long)f[0]) << 16L) |
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(((unsigned long)f[1]) << 8L) | f[2];
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*(t++) = conv_bin2ascii(l >> 18L);
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*(t++) = conv_bin2ascii(l >> 12L);
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*(t++) = conv_bin2ascii(l >> 6L);
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*(t++) = conv_bin2ascii(l);
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*(t++) = conv_bin2ascii(l >> 18L, table);
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*(t++) = conv_bin2ascii(l >> 12L, table);
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*(t++) = conv_bin2ascii(l >> 6L, table);
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*(t++) = conv_bin2ascii(l, table);
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} else {
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l = ((unsigned long)f[0]) << 16L;
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if (i == 2)
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l |= ((unsigned long)f[1] << 8L);
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*(t++) = conv_bin2ascii(l >> 18L);
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*(t++) = conv_bin2ascii(l >> 12L);
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*(t++) = (i == 1) ? '=' : conv_bin2ascii(l >> 6L);
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*(t++) = conv_bin2ascii(l >> 18L, table);
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*(t++) = conv_bin2ascii(l >> 12L, table);
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*(t++) = (i == 1) ? '=' : conv_bin2ascii(l >> 6L, table);
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*(t++) = '=';
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}
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ret += 4;
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@@ -215,13 +266,18 @@ int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int dlen)
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return ret;
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}
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int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int dlen)
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{
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return evp_encodeblock_int(NULL, t, f, dlen);
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}
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void EVP_DecodeInit(EVP_ENCODE_CTX *ctx)
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{
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/* Only ctx->num is used during decoding. */
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/* Only ctx->num and ctx->flags are used during decoding. */
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ctx->num = 0;
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ctx->length = 0;
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ctx->line_num = 0;
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ctx->expect_nl = 0;
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ctx->flags = 0;
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}
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/*-
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@@ -249,6 +305,7 @@ int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
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{
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int seof = 0, eof = 0, rv = -1, ret = 0, i, v, tmp, n, decoded_len;
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unsigned char *d;
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const unsigned char *table;
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n = ctx->num;
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d = ctx->enc_data;
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@@ -265,9 +322,14 @@ int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
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goto end;
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}
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if ((ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0)
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table = srpdata_ascii2bin;
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else
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table = data_ascii2bin;
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for (i = 0; i < inl; i++) {
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tmp = *(in++);
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v = conv_ascii2bin(tmp);
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v = conv_ascii2bin(tmp, table);
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if (v == B64_ERROR) {
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rv = -1;
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goto end;
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@@ -307,7 +369,7 @@ int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
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}
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if (n == 64) {
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decoded_len = EVP_DecodeBlock(out, d, n);
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decoded_len = evp_decodeblock_int(ctx, out, d, n);
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n = 0;
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if (decoded_len < 0 || eof > decoded_len) {
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rv = -1;
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@@ -326,7 +388,7 @@ int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
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tail:
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if (n > 0) {
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if ((n & 3) == 0) {
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decoded_len = EVP_DecodeBlock(out, d, n);
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decoded_len = evp_decodeblock_int(ctx, out, d, n);
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n = 0;
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if (decoded_len < 0 || eof > decoded_len) {
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rv = -1;
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@@ -348,13 +410,20 @@ end:
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return rv;
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}
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int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n)
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static int evp_decodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
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const unsigned char *f, int n)
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{
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int i, ret = 0, a, b, c, d;
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unsigned long l;
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const unsigned char *table;
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if (ctx != NULL && (ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0)
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table = srpdata_ascii2bin;
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else
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table = data_ascii2bin;
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/* trim white space from the start of the line. */
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while ((conv_ascii2bin(*f) == B64_WS) && (n > 0)) {
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while ((conv_ascii2bin(*f, table) == B64_WS) && (n > 0)) {
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f++;
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n--;
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}
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@@ -363,17 +432,17 @@ int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n)
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* strip off stuff at the end of the line ascii2bin values B64_WS,
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* B64_EOLN, B64_EOLN and B64_EOF
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*/
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while ((n > 3) && (B64_NOT_BASE64(conv_ascii2bin(f[n - 1]))))
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while ((n > 3) && (B64_NOT_BASE64(conv_ascii2bin(f[n - 1], table))))
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n--;
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if (n % 4 != 0)
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return -1;
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for (i = 0; i < n; i += 4) {
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a = conv_ascii2bin(*(f++));
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b = conv_ascii2bin(*(f++));
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c = conv_ascii2bin(*(f++));
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d = conv_ascii2bin(*(f++));
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a = conv_ascii2bin(*(f++), table);
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b = conv_ascii2bin(*(f++), table);
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c = conv_ascii2bin(*(f++), table);
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d = conv_ascii2bin(*(f++), table);
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if ((a & 0x80) || (b & 0x80) || (c & 0x80) || (d & 0x80))
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return -1;
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l = ((((unsigned long)a) << 18L) |
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@@ -387,13 +456,18 @@ int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n)
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return ret;
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}
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int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n)
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{
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return evp_decodeblock_int(NULL, t, f, n);
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}
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int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl)
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{
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int i;
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*outl = 0;
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if (ctx->num != 0) {
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i = EVP_DecodeBlock(out, ctx->enc_data, ctx->num);
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i = evp_decodeblock_int(ctx, out, ctx->enc_data, ctx->num);
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if (i < 0)
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return -1;
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ctx->num = 0;
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