Restoring authorship annotation for <deshevoy@yandex-team.ru>. Commit 1 of 2.

1 files changed, 474 insertions, 474 deletions

diff --git a/contrib/libs/openssl/crypto/evp/encode.c b/contrib/libs/openssl/crypto/evp/encode.c
index 85926434c3..0dee71ccd6 100644
--- a/contrib/libs/openssl/crypto/evp/encode.c
+++ b/contrib/libs/openssl/crypto/evp/encode.c
@@ -1,478 +1,478 @@
-/*
+/* 
  * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License").  You may not use
- * this file except in compliance with the License.  You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-#include <stdio.h>
-#include <limits.h>
-#include "internal/cryptlib.h"
-#include <openssl/evp.h>
+ * 
+ * Licensed under the OpenSSL license (the "License").  You may not use 
+ * this file except in compliance with the License.  You can obtain a copy 
+ * in the file LICENSE in the source distribution or at 
+ * https://www.openssl.org/source/license.html 
+ */ 
+ 
+#include <stdio.h> 
+#include <limits.h> 
+#include "internal/cryptlib.h" 
+#include <openssl/evp.h> 
 #include "evp_local.h"
 #include "crypto/evp.h"
-
-static unsigned char conv_ascii2bin(unsigned char a,
-                                    const unsigned char *table);
-static int evp_encodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
-                               const unsigned char *f, int dlen);
-static int evp_decodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
-                               const unsigned char *f, int n);
-
-#ifndef CHARSET_EBCDIC
-# define conv_bin2ascii(a, table)       ((table)[(a)&0x3f])
-#else
-/*
- * We assume that PEM encoded files are EBCDIC files (i.e., printable text
- * files). Convert them here while decoding. When encoding, output is EBCDIC
- * (text) format again. (No need for conversion in the conv_bin2ascii macro,
- * as the underlying textstring data_bin2ascii[] is already EBCDIC)
- */
-# define conv_bin2ascii(a, table)       ((table)[(a)&0x3f])
-#endif
-
-/*-
- * 64 char lines
- * pad input with 0
- * left over chars are set to =
- * 1 byte  => xx==
- * 2 bytes => xxx=
- * 3 bytes => xxxx
- */
-#define BIN_PER_LINE    (64/4*3)
-#define CHUNKS_PER_LINE (64/4)
-#define CHAR_PER_LINE   (64+1)
-
-static const unsigned char data_bin2ascii[65] =
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-/* SRP uses a different base64 alphabet */
-static const unsigned char srpdata_bin2ascii[65] =
-    "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz./";
-
-
-/*-
- * 0xF0 is a EOLN
- * 0xF1 is ignore but next needs to be 0xF0 (for \r\n processing).
- * 0xF2 is EOF
- * 0xE0 is ignore at start of line.
- * 0xFF is error
- */
-
-#define B64_EOLN                0xF0
-#define B64_CR                  0xF1
-#define B64_EOF                 0xF2
-#define B64_WS                  0xE0
-#define B64_ERROR               0xFF
-#define B64_NOT_BASE64(a)       (((a)|0x13) == 0xF3)
-#define B64_BASE64(a)           (!B64_NOT_BASE64(a))
-
-static const unsigned char data_ascii2bin[128] = {
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0xE0, 0xF0, 0xFF, 0xFF, 0xF1, 0xFF, 0xFF,
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xE0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0xFF, 0xFF, 0x3E, 0xFF, 0xF2, 0xFF, 0x3F,
-    0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
-    0x3C, 0x3D, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF,
-    0xFF, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
-    0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
-    0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
-    0x17, 0x18, 0x19, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
-    0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
-    0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30,
-    0x31, 0x32, 0x33, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-};
-
-static const unsigned char srpdata_ascii2bin[128] = {
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0xE0, 0xF0, 0xFF, 0xFF, 0xF1, 0xFF, 0xFF,
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xE0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF2, 0x3E, 0x3F,
-    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-    0x08, 0x09, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF,
-    0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10,
-    0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
-    0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
-    0x21, 0x22, 0x23, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A,
-    0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32,
-    0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
-    0x3B, 0x3C, 0x3D, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-};
-
-#ifndef CHARSET_EBCDIC
-static unsigned char conv_ascii2bin(unsigned char a, const unsigned char *table)
-{
-    if (a & 0x80)
-        return B64_ERROR;
-    return table[a];
-}
-#else
-static unsigned char conv_ascii2bin(unsigned char a, const unsigned char *table)
-{
-    a = os_toascii[a];
-    if (a & 0x80)
-        return B64_ERROR;
-    return table[a];
-}
-#endif
-
-EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void)
-{
-    return OPENSSL_zalloc(sizeof(EVP_ENCODE_CTX));
-}
-
-void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx)
-{
-    OPENSSL_free(ctx);
-}
-
-int EVP_ENCODE_CTX_copy(EVP_ENCODE_CTX *dctx, EVP_ENCODE_CTX *sctx)
-{
-    memcpy(dctx, sctx, sizeof(EVP_ENCODE_CTX));
-
-    return 1;
-}
-
-int EVP_ENCODE_CTX_num(EVP_ENCODE_CTX *ctx)
-{
-    return ctx->num;
-}
-
-void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags)
-{
-    ctx->flags = flags;
-}
-
-void EVP_EncodeInit(EVP_ENCODE_CTX *ctx)
-{
-    ctx->length = 48;
-    ctx->num = 0;
-    ctx->line_num = 0;
-    ctx->flags = 0;
-}
-
-int EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
-                      const unsigned char *in, int inl)
-{
-    int i, j;
-    size_t total = 0;
-
-    *outl = 0;
-    if (inl <= 0)
-        return 0;
-    OPENSSL_assert(ctx->length <= (int)sizeof(ctx->enc_data));
-    if (ctx->length - ctx->num > inl) {
-        memcpy(&(ctx->enc_data[ctx->num]), in, inl);
-        ctx->num += inl;
-        return 1;
-    }
-    if (ctx->num != 0) {
-        i = ctx->length - ctx->num;
-        memcpy(&(ctx->enc_data[ctx->num]), in, i);
-        in += i;
-        inl -= i;
-        j = evp_encodeblock_int(ctx, out, ctx->enc_data, ctx->length);
-        ctx->num = 0;
-        out += j;
-        total = j;
-        if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0) {
-            *(out++) = '\n';
-            total++;
-        }
-        *out = '\0';
-    }
-    while (inl >= ctx->length && total <= INT_MAX) {
-        j = evp_encodeblock_int(ctx, out, in, ctx->length);
-        in += ctx->length;
-        inl -= ctx->length;
-        out += j;
-        total += j;
-        if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0) {
-            *(out++) = '\n';
-            total++;
-        }
-        *out = '\0';
-    }
-    if (total > INT_MAX) {
-        /* Too much output data! */
-        *outl = 0;
-        return 0;
-    }
-    if (inl != 0)
-        memcpy(&(ctx->enc_data[0]), in, inl);
-    ctx->num = inl;
-    *outl = total;
-
-    return 1;
-}
-
-void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl)
-{
-    unsigned int ret = 0;
-
-    if (ctx->num != 0) {
-        ret = evp_encodeblock_int(ctx, out, ctx->enc_data, ctx->num);
-        if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0)
-            out[ret++] = '\n';
-        out[ret] = '\0';
-        ctx->num = 0;
-    }
-    *outl = ret;
-}
-
-static int evp_encodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
-                               const unsigned char *f, int dlen)
-{
-    int i, ret = 0;
-    unsigned long l;
-    const unsigned char *table;
-
-    if (ctx != NULL && (ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0)
-        table = srpdata_bin2ascii;
-    else
-        table = data_bin2ascii;
-
-    for (i = dlen; i > 0; i -= 3) {
-        if (i >= 3) {
-            l = (((unsigned long)f[0]) << 16L) |
-                (((unsigned long)f[1]) << 8L) | f[2];
-            *(t++) = conv_bin2ascii(l >> 18L, table);
-            *(t++) = conv_bin2ascii(l >> 12L, table);
-            *(t++) = conv_bin2ascii(l >> 6L, table);
-            *(t++) = conv_bin2ascii(l, table);
-        } else {
-            l = ((unsigned long)f[0]) << 16L;
-            if (i == 2)
-                l |= ((unsigned long)f[1] << 8L);
-
-            *(t++) = conv_bin2ascii(l >> 18L, table);
-            *(t++) = conv_bin2ascii(l >> 12L, table);
-            *(t++) = (i == 1) ? '=' : conv_bin2ascii(l >> 6L, table);
-            *(t++) = '=';
-        }
-        ret += 4;
-        f += 3;
-    }
-
-    *t = '\0';
-    return ret;
-}
-
-int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int dlen)
-{
-    return evp_encodeblock_int(NULL, t, f, dlen);
-}
-
-void EVP_DecodeInit(EVP_ENCODE_CTX *ctx)
-{
-    /* Only ctx->num and ctx->flags are used during decoding. */
-    ctx->num = 0;
-    ctx->length = 0;
-    ctx->line_num = 0;
-    ctx->flags = 0;
-}
-
-/*-
- * -1 for error
- *  0 for last line
- *  1 for full line
- *
- * Note: even though EVP_DecodeUpdate attempts to detect and report end of
- * content, the context doesn't currently remember it and will accept more data
- * in the next call. Therefore, the caller is responsible for checking and
- * rejecting a 0 return value in the middle of content.
- *
- * Note: even though EVP_DecodeUpdate has historically tried to detect end of
- * content based on line length, this has never worked properly. Therefore,
- * we now return 0 when one of the following is true:
- *   - Padding or B64_EOF was detected and the last block is complete.
- *   - Input has zero-length.
- * -1 is returned if:
- *   - Invalid characters are detected.
- *   - There is extra trailing padding, or data after padding.
- *   - B64_EOF is detected after an incomplete base64 block.
- */
-int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
-                     const unsigned char *in, int inl)
-{
-    int seof = 0, eof = 0, rv = -1, ret = 0, i, v, tmp, n, decoded_len;
-    unsigned char *d;
-    const unsigned char *table;
-
-    n = ctx->num;
-    d = ctx->enc_data;
-
-    if (n > 0 && d[n - 1] == '=') {
-        eof++;
-        if (n > 1 && d[n - 2] == '=')
-            eof++;
-    }
-
-     /* Legacy behaviour: an empty input chunk signals end of input. */
-    if (inl == 0) {
-        rv = 0;
-        goto end;
-    }
-
-    if ((ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0)
-        table = srpdata_ascii2bin;
-    else
-        table = data_ascii2bin;
-
-    for (i = 0; i < inl; i++) {
-        tmp = *(in++);
-        v = conv_ascii2bin(tmp, table);
-        if (v == B64_ERROR) {
-            rv = -1;
-            goto end;
-        }
-
-        if (tmp == '=') {
-            eof++;
-        } else if (eof > 0 && B64_BASE64(v)) {
-            /* More data after padding. */
-            rv = -1;
-            goto end;
-        }
-
-        if (eof > 2) {
-            rv = -1;
-            goto end;
-        }
-
-        if (v == B64_EOF) {
-            seof = 1;
-            goto tail;
-        }
-
-        /* Only save valid base64 characters. */
-        if (B64_BASE64(v)) {
-            if (n >= 64) {
-                /*
-                 * We increment n once per loop, and empty the buffer as soon as
-                 * we reach 64 characters, so this can only happen if someone's
-                 * manually messed with the ctx. Refuse to write any more data.
-                 */
-                rv = -1;
-                goto end;
-            }
-            OPENSSL_assert(n < (int)sizeof(ctx->enc_data));
-            d[n++] = tmp;
-        }
-
-        if (n == 64) {
-            decoded_len = evp_decodeblock_int(ctx, out, d, n);
-            n = 0;
-            if (decoded_len < 0 || eof > decoded_len) {
-                rv = -1;
-                goto end;
-            }
-            ret += decoded_len - eof;
-            out += decoded_len - eof;
-        }
-    }
-
-    /*
-     * Legacy behaviour: if the current line is a full base64-block (i.e., has
-     * 0 mod 4 base64 characters), it is processed immediately. We keep this
-     * behaviour as applications may not be calling EVP_DecodeFinal properly.
-     */
-tail:
-    if (n > 0) {
-        if ((n & 3) == 0) {
-            decoded_len = evp_decodeblock_int(ctx, out, d, n);
-            n = 0;
-            if (decoded_len < 0 || eof > decoded_len) {
-                rv = -1;
-                goto end;
-            }
-            ret += (decoded_len - eof);
-        } else if (seof) {
-            /* EOF in the middle of a base64 block. */
-            rv = -1;
-            goto end;
-        }
-    }
-
-    rv = seof || (n == 0 && eof) ? 0 : 1;
-end:
-    /* Legacy behaviour. This should probably rather be zeroed on error. */
-    *outl = ret;
-    ctx->num = n;
-    return rv;
-}
-
-static int evp_decodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
-                               const unsigned char *f, int n)
-{
-    int i, ret = 0, a, b, c, d;
-    unsigned long l;
-    const unsigned char *table;
-
-    if (ctx != NULL && (ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0)
-        table = srpdata_ascii2bin;
-    else
-        table = data_ascii2bin;
-
-    /* trim white space from the start of the line. */
+ 
+static unsigned char conv_ascii2bin(unsigned char a, 
+                                    const unsigned char *table); 
+static int evp_encodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t, 
+                               const unsigned char *f, int dlen); 
+static int evp_decodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t, 
+                               const unsigned char *f, int n); 
+ 
+#ifndef CHARSET_EBCDIC 
+# define conv_bin2ascii(a, table)       ((table)[(a)&0x3f]) 
+#else 
+/* 
+ * We assume that PEM encoded files are EBCDIC files (i.e., printable text 
+ * files). Convert them here while decoding. When encoding, output is EBCDIC 
+ * (text) format again. (No need for conversion in the conv_bin2ascii macro, 
+ * as the underlying textstring data_bin2ascii[] is already EBCDIC) 
+ */ 
+# define conv_bin2ascii(a, table)       ((table)[(a)&0x3f]) 
+#endif 
+ 
+/*- 
+ * 64 char lines 
+ * pad input with 0 
+ * left over chars are set to = 
+ * 1 byte  => xx== 
+ * 2 bytes => xxx= 
+ * 3 bytes => xxxx 
+ */ 
+#define BIN_PER_LINE    (64/4*3) 
+#define CHUNKS_PER_LINE (64/4) 
+#define CHAR_PER_LINE   (64+1) 
+ 
+static const unsigned char data_bin2ascii[65] = 
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; 
+ 
+/* SRP uses a different base64 alphabet */ 
+static const unsigned char srpdata_bin2ascii[65] = 
+    "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz./"; 
+ 
+ 
+/*- 
+ * 0xF0 is a EOLN 
+ * 0xF1 is ignore but next needs to be 0xF0 (for \r\n processing). 
+ * 0xF2 is EOF 
+ * 0xE0 is ignore at start of line. 
+ * 0xFF is error 
+ */ 
+ 
+#define B64_EOLN                0xF0 
+#define B64_CR                  0xF1 
+#define B64_EOF                 0xF2 
+#define B64_WS                  0xE0 
+#define B64_ERROR               0xFF 
+#define B64_NOT_BASE64(a)       (((a)|0x13) == 0xF3) 
+#define B64_BASE64(a)           (!B64_NOT_BASE64(a)) 
+ 
+static const unsigned char data_ascii2bin[128] = { 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xE0, 0xF0, 0xFF, 0xFF, 0xF1, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xE0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0x3E, 0xFF, 0xF2, 0xFF, 0x3F, 
+    0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 
+    0x3C, 0x3D, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 
+    0xFF, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 
+    0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 
+    0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 
+    0x17, 0x18, 0x19, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 
+    0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 
+    0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 
+    0x31, 0x32, 0x33, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+}; 
+ 
+static const unsigned char srpdata_ascii2bin[128] = { 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xE0, 0xF0, 0xFF, 0xFF, 0xF1, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xE0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF2, 0x3E, 0x3F, 
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+    0x08, 0x09, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 
+    0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 
+    0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 
+    0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 
+    0x21, 0x22, 0x23, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 
+    0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 
+    0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 
+    0x3B, 0x3C, 0x3D, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+}; 
+ 
+#ifndef CHARSET_EBCDIC 
+static unsigned char conv_ascii2bin(unsigned char a, const unsigned char *table) 
+{ 
+    if (a & 0x80) 
+        return B64_ERROR; 
+    return table[a]; 
+} 
+#else 
+static unsigned char conv_ascii2bin(unsigned char a, const unsigned char *table) 
+{ 
+    a = os_toascii[a]; 
+    if (a & 0x80) 
+        return B64_ERROR; 
+    return table[a]; 
+} 
+#endif 
+ 
+EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void) 
+{ 
+    return OPENSSL_zalloc(sizeof(EVP_ENCODE_CTX)); 
+} 
+ 
+void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx) 
+{ 
+    OPENSSL_free(ctx); 
+} 
+ 
+int EVP_ENCODE_CTX_copy(EVP_ENCODE_CTX *dctx, EVP_ENCODE_CTX *sctx) 
+{ 
+    memcpy(dctx, sctx, sizeof(EVP_ENCODE_CTX)); 
+ 
+    return 1; 
+} 
+ 
+int EVP_ENCODE_CTX_num(EVP_ENCODE_CTX *ctx) 
+{ 
+    return ctx->num; 
+} 
+ 
+void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags) 
+{ 
+    ctx->flags = flags; 
+} 
+ 
+void EVP_EncodeInit(EVP_ENCODE_CTX *ctx) 
+{ 
+    ctx->length = 48; 
+    ctx->num = 0; 
+    ctx->line_num = 0; 
+    ctx->flags = 0; 
+} 
+ 
+int EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl, 
+                      const unsigned char *in, int inl) 
+{ 
+    int i, j; 
+    size_t total = 0; 
+ 
+    *outl = 0; 
+    if (inl <= 0) 
+        return 0; 
+    OPENSSL_assert(ctx->length <= (int)sizeof(ctx->enc_data)); 
+    if (ctx->length - ctx->num > inl) { 
+        memcpy(&(ctx->enc_data[ctx->num]), in, inl); 
+        ctx->num += inl; 
+        return 1; 
+    } 
+    if (ctx->num != 0) { 
+        i = ctx->length - ctx->num; 
+        memcpy(&(ctx->enc_data[ctx->num]), in, i); 
+        in += i; 
+        inl -= i; 
+        j = evp_encodeblock_int(ctx, out, ctx->enc_data, ctx->length); 
+        ctx->num = 0; 
+        out += j; 
+        total = j; 
+        if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0) { 
+            *(out++) = '\n'; 
+            total++; 
+        } 
+        *out = '\0'; 
+    } 
+    while (inl >= ctx->length && total <= INT_MAX) { 
+        j = evp_encodeblock_int(ctx, out, in, ctx->length); 
+        in += ctx->length; 
+        inl -= ctx->length; 
+        out += j; 
+        total += j; 
+        if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0) { 
+            *(out++) = '\n'; 
+            total++; 
+        } 
+        *out = '\0'; 
+    } 
+    if (total > INT_MAX) { 
+        /* Too much output data! */ 
+        *outl = 0; 
+        return 0; 
+    } 
+    if (inl != 0) 
+        memcpy(&(ctx->enc_data[0]), in, inl); 
+    ctx->num = inl; 
+    *outl = total; 
+ 
+    return 1; 
+} 
+ 
+void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl) 
+{ 
+    unsigned int ret = 0; 
+ 
+    if (ctx->num != 0) { 
+        ret = evp_encodeblock_int(ctx, out, ctx->enc_data, ctx->num); 
+        if ((ctx->flags & EVP_ENCODE_CTX_NO_NEWLINES) == 0) 
+            out[ret++] = '\n'; 
+        out[ret] = '\0'; 
+        ctx->num = 0; 
+    } 
+    *outl = ret; 
+} 
+ 
+static int evp_encodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t, 
+                               const unsigned char *f, int dlen) 
+{ 
+    int i, ret = 0; 
+    unsigned long l; 
+    const unsigned char *table; 
+ 
+    if (ctx != NULL && (ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0) 
+        table = srpdata_bin2ascii; 
+    else 
+        table = data_bin2ascii; 
+ 
+    for (i = dlen; i > 0; i -= 3) { 
+        if (i >= 3) { 
+            l = (((unsigned long)f[0]) << 16L) | 
+                (((unsigned long)f[1]) << 8L) | f[2]; 
+            *(t++) = conv_bin2ascii(l >> 18L, table); 
+            *(t++) = conv_bin2ascii(l >> 12L, table); 
+            *(t++) = conv_bin2ascii(l >> 6L, table); 
+            *(t++) = conv_bin2ascii(l, table); 
+        } else { 
+            l = ((unsigned long)f[0]) << 16L; 
+            if (i == 2) 
+                l |= ((unsigned long)f[1] << 8L); 
+ 
+            *(t++) = conv_bin2ascii(l >> 18L, table); 
+            *(t++) = conv_bin2ascii(l >> 12L, table); 
+            *(t++) = (i == 1) ? '=' : conv_bin2ascii(l >> 6L, table); 
+            *(t++) = '='; 
+        } 
+        ret += 4; 
+        f += 3; 
+    } 
+ 
+    *t = '\0'; 
+    return ret; 
+} 
+ 
+int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int dlen) 
+{ 
+    return evp_encodeblock_int(NULL, t, f, dlen); 
+} 
+ 
+void EVP_DecodeInit(EVP_ENCODE_CTX *ctx) 
+{ 
+    /* Only ctx->num and ctx->flags are used during decoding. */ 
+    ctx->num = 0; 
+    ctx->length = 0; 
+    ctx->line_num = 0; 
+    ctx->flags = 0; 
+} 
+ 
+/*- 
+ * -1 for error 
+ *  0 for last line 
+ *  1 for full line 
+ * 
+ * Note: even though EVP_DecodeUpdate attempts to detect and report end of 
+ * content, the context doesn't currently remember it and will accept more data 
+ * in the next call. Therefore, the caller is responsible for checking and 
+ * rejecting a 0 return value in the middle of content. 
+ * 
+ * Note: even though EVP_DecodeUpdate has historically tried to detect end of 
+ * content based on line length, this has never worked properly. Therefore, 
+ * we now return 0 when one of the following is true: 
+ *   - Padding or B64_EOF was detected and the last block is complete. 
+ *   - Input has zero-length. 
+ * -1 is returned if: 
+ *   - Invalid characters are detected. 
+ *   - There is extra trailing padding, or data after padding. 
+ *   - B64_EOF is detected after an incomplete base64 block. 
+ */ 
+int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl, 
+                     const unsigned char *in, int inl) 
+{ 
+    int seof = 0, eof = 0, rv = -1, ret = 0, i, v, tmp, n, decoded_len; 
+    unsigned char *d; 
+    const unsigned char *table; 
+ 
+    n = ctx->num; 
+    d = ctx->enc_data; 
+ 
+    if (n > 0 && d[n - 1] == '=') { 
+        eof++; 
+        if (n > 1 && d[n - 2] == '=') 
+            eof++; 
+    } 
+ 
+     /* Legacy behaviour: an empty input chunk signals end of input. */ 
+    if (inl == 0) { 
+        rv = 0; 
+        goto end; 
+    } 
+ 
+    if ((ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0) 
+        table = srpdata_ascii2bin; 
+    else 
+        table = data_ascii2bin; 
+ 
+    for (i = 0; i < inl; i++) { 
+        tmp = *(in++); 
+        v = conv_ascii2bin(tmp, table); 
+        if (v == B64_ERROR) { 
+            rv = -1; 
+            goto end; 
+        } 
+ 
+        if (tmp == '=') { 
+            eof++; 
+        } else if (eof > 0 && B64_BASE64(v)) { 
+            /* More data after padding. */ 
+            rv = -1; 
+            goto end; 
+        } 
+ 
+        if (eof > 2) { 
+            rv = -1; 
+            goto end; 
+        } 
+ 
+        if (v == B64_EOF) { 
+            seof = 1; 
+            goto tail; 
+        } 
+ 
+        /* Only save valid base64 characters. */ 
+        if (B64_BASE64(v)) { 
+            if (n >= 64) { 
+                /* 
+                 * We increment n once per loop, and empty the buffer as soon as 
+                 * we reach 64 characters, so this can only happen if someone's 
+                 * manually messed with the ctx. Refuse to write any more data. 
+                 */ 
+                rv = -1; 
+                goto end; 
+            } 
+            OPENSSL_assert(n < (int)sizeof(ctx->enc_data)); 
+            d[n++] = tmp; 
+        } 
+ 
+        if (n == 64) { 
+            decoded_len = evp_decodeblock_int(ctx, out, d, n); 
+            n = 0; 
+            if (decoded_len < 0 || eof > decoded_len) { 
+                rv = -1; 
+                goto end; 
+            } 
+            ret += decoded_len - eof; 
+            out += decoded_len - eof; 
+        } 
+    } 
+ 
+    /* 
+     * Legacy behaviour: if the current line is a full base64-block (i.e., has 
+     * 0 mod 4 base64 characters), it is processed immediately. We keep this 
+     * behaviour as applications may not be calling EVP_DecodeFinal properly. 
+     */ 
+tail: 
+    if (n > 0) { 
+        if ((n & 3) == 0) { 
+            decoded_len = evp_decodeblock_int(ctx, out, d, n); 
+            n = 0; 
+            if (decoded_len < 0 || eof > decoded_len) { 
+                rv = -1; 
+                goto end; 
+            } 
+            ret += (decoded_len - eof); 
+        } else if (seof) { 
+            /* EOF in the middle of a base64 block. */ 
+            rv = -1; 
+            goto end; 
+        } 
+    } 
+ 
+    rv = seof || (n == 0 && eof) ? 0 : 1; 
+end: 
+    /* Legacy behaviour. This should probably rather be zeroed on error. */ 
+    *outl = ret; 
+    ctx->num = n; 
+    return rv; 
+} 
+ 
+static int evp_decodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t, 
+                               const unsigned char *f, int n) 
+{ 
+    int i, ret = 0, a, b, c, d; 
+    unsigned long l; 
+    const unsigned char *table; 
+ 
+    if (ctx != NULL && (ctx->flags & EVP_ENCODE_CTX_USE_SRP_ALPHABET) != 0) 
+        table = srpdata_ascii2bin; 
+    else 
+        table = data_ascii2bin; 
+ 
+    /* trim white space from the start of the line. */ 
     while ((n > 0) && (conv_ascii2bin(*f, table) == B64_WS)) {
-        f++;
-        n--;
-    }
-
-    /*
-     * strip off stuff at the end of the line ascii2bin values B64_WS,
-     * B64_EOLN, B64_EOLN and B64_EOF
-     */
-    while ((n > 3) && (B64_NOT_BASE64(conv_ascii2bin(f[n - 1], table))))
-        n--;
-
-    if (n % 4 != 0)
-        return -1;
-
-    for (i = 0; i < n; i += 4) {
-        a = conv_ascii2bin(*(f++), table);
-        b = conv_ascii2bin(*(f++), table);
-        c = conv_ascii2bin(*(f++), table);
-        d = conv_ascii2bin(*(f++), table);
-        if ((a & 0x80) || (b & 0x80) || (c & 0x80) || (d & 0x80))
-            return -1;
-        l = ((((unsigned long)a) << 18L) |
-             (((unsigned long)b) << 12L) |
-             (((unsigned long)c) << 6L) | (((unsigned long)d)));
-        *(t++) = (unsigned char)(l >> 16L) & 0xff;
-        *(t++) = (unsigned char)(l >> 8L) & 0xff;
-        *(t++) = (unsigned char)(l) & 0xff;
-        ret += 3;
-    }
-    return ret;
-}
-
-int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n)
-{
-    return evp_decodeblock_int(NULL, t, f, n);
-}
-
-int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl)
-{
-    int i;
-
-    *outl = 0;
-    if (ctx->num != 0) {
-        i = evp_decodeblock_int(ctx, out, ctx->enc_data, ctx->num);
-        if (i < 0)
-            return -1;
-        ctx->num = 0;
-        *outl = i;
-        return 1;
-    } else
-        return 1;
-}
+        f++; 
+        n--; 
+    } 
+ 
+    /* 
+     * strip off stuff at the end of the line ascii2bin values B64_WS, 
+     * B64_EOLN, B64_EOLN and B64_EOF 
+     */ 
+    while ((n > 3) && (B64_NOT_BASE64(conv_ascii2bin(f[n - 1], table)))) 
+        n--; 
+ 
+    if (n % 4 != 0) 
+        return -1; 
+ 
+    for (i = 0; i < n; i += 4) { 
+        a = conv_ascii2bin(*(f++), table); 
+        b = conv_ascii2bin(*(f++), table); 
+        c = conv_ascii2bin(*(f++), table); 
+        d = conv_ascii2bin(*(f++), table); 
+        if ((a & 0x80) || (b & 0x80) || (c & 0x80) || (d & 0x80)) 
+            return -1; 
+        l = ((((unsigned long)a) << 18L) | 
+             (((unsigned long)b) << 12L) | 
+             (((unsigned long)c) << 6L) | (((unsigned long)d))); 
+        *(t++) = (unsigned char)(l >> 16L) & 0xff; 
+        *(t++) = (unsigned char)(l >> 8L) & 0xff; 
+        *(t++) = (unsigned char)(l) & 0xff; 
+        ret += 3; 
+    } 
+    return ret; 
+} 
+ 
+int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n) 
+{ 
+    return evp_decodeblock_int(NULL, t, f, n); 
+} 
+ 
+int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl) 
+{ 
+    int i; 
+ 
+    *outl = 0; 
+    if (ctx->num != 0) { 
+        i = evp_decodeblock_int(ctx, out, ctx->enc_data, ctx->num); 
+        if (i < 0) 
+            return -1; 
+        ctx->num = 0; 
+        *outl = i; 
+        return 1; 
+    } else 
+        return 1; 
+}