diff options
author | Fabio Alessandrelli <fabio.alessandrelli@gmail.com> | 2018-02-08 19:17:31 +0100 |
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committer | Fabio Alessandrelli <fabio.alessandrelli@gmail.com> | 2018-02-14 01:26:34 +0100 |
commit | 6fcc8b7e1f415db55c6627630f622a37f6973714 (patch) | |
tree | 80c267a7a5b36b5537d9bb4038687f391ce159e5 /thirdparty/openssl/crypto/evp/bio_b64.c | |
parent | 308b03b377fc0001542ad4cfe876fca3c2f49a00 (diff) |
Deleting OpenSSL module and library
Diffstat (limited to 'thirdparty/openssl/crypto/evp/bio_b64.c')
-rw-r--r-- | thirdparty/openssl/crypto/evp/bio_b64.c | 573 |
1 files changed, 0 insertions, 573 deletions
diff --git a/thirdparty/openssl/crypto/evp/bio_b64.c b/thirdparty/openssl/crypto/evp/bio_b64.c deleted file mode 100644 index 538b520264..0000000000 --- a/thirdparty/openssl/crypto/evp/bio_b64.c +++ /dev/null @@ -1,573 +0,0 @@ -/* crypto/evp/bio_b64.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include <stdio.h> -#include <errno.h> -#include "cryptlib.h" -#include <openssl/buffer.h> -#include <openssl/evp.h> - -static int b64_write(BIO *h, const char *buf, int num); -static int b64_read(BIO *h, char *buf, int size); -static int b64_puts(BIO *h, const char *str); -/* - * static int b64_gets(BIO *h, char *str, int size); - */ -static long b64_ctrl(BIO *h, int cmd, long arg1, void *arg2); -static int b64_new(BIO *h); -static int b64_free(BIO *data); -static long b64_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp); -#define B64_BLOCK_SIZE 1024 -#define B64_BLOCK_SIZE2 768 -#define B64_NONE 0 -#define B64_ENCODE 1 -#define B64_DECODE 2 - -typedef struct b64_struct { - /* - * BIO *bio; moved to the BIO structure - */ - int buf_len; - int buf_off; - int tmp_len; /* used to find the start when decoding */ - int tmp_nl; /* If true, scan until '\n' */ - int encode; - int start; /* have we started decoding yet? */ - int cont; /* <= 0 when finished */ - EVP_ENCODE_CTX base64; - char buf[EVP_ENCODE_LENGTH(B64_BLOCK_SIZE) + 10]; - char tmp[B64_BLOCK_SIZE]; -} BIO_B64_CTX; - -static BIO_METHOD methods_b64 = { - BIO_TYPE_BASE64, "base64 encoding", - b64_write, - b64_read, - b64_puts, - NULL, /* b64_gets, */ - b64_ctrl, - b64_new, - b64_free, - b64_callback_ctrl, -}; - -BIO_METHOD *BIO_f_base64(void) -{ - return (&methods_b64); -} - -static int b64_new(BIO *bi) -{ - BIO_B64_CTX *ctx; - - ctx = (BIO_B64_CTX *)OPENSSL_malloc(sizeof(BIO_B64_CTX)); - if (ctx == NULL) - return (0); - - ctx->buf_len = 0; - ctx->tmp_len = 0; - ctx->tmp_nl = 0; - ctx->buf_off = 0; - ctx->cont = 1; - ctx->start = 1; - ctx->encode = 0; - - bi->init = 1; - bi->ptr = (char *)ctx; - bi->flags = 0; - bi->num = 0; - return (1); -} - -static int b64_free(BIO *a) -{ - if (a == NULL) - return (0); - OPENSSL_free(a->ptr); - a->ptr = NULL; - a->init = 0; - a->flags = 0; - return (1); -} - -static int b64_read(BIO *b, char *out, int outl) -{ - int ret = 0, i, ii, j, k, x, n, num, ret_code = 0; - BIO_B64_CTX *ctx; - unsigned char *p, *q; - - if (out == NULL) - return (0); - ctx = (BIO_B64_CTX *)b->ptr; - - if ((ctx == NULL) || (b->next_bio == NULL)) - return (0); - - BIO_clear_retry_flags(b); - - if (ctx->encode != B64_DECODE) { - ctx->encode = B64_DECODE; - ctx->buf_len = 0; - ctx->buf_off = 0; - ctx->tmp_len = 0; - EVP_DecodeInit(&(ctx->base64)); - } - - /* First check if there are bytes decoded/encoded */ - if (ctx->buf_len > 0) { - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - i = ctx->buf_len - ctx->buf_off; - if (i > outl) - i = outl; - OPENSSL_assert(ctx->buf_off + i < (int)sizeof(ctx->buf)); - memcpy(out, &(ctx->buf[ctx->buf_off]), i); - ret = i; - out += i; - outl -= i; - ctx->buf_off += i; - if (ctx->buf_len == ctx->buf_off) { - ctx->buf_len = 0; - ctx->buf_off = 0; - } - } - - /* - * At this point, we have room of outl bytes and an empty buffer, so we - * should read in some more. - */ - - ret_code = 0; - while (outl > 0) { - if (ctx->cont <= 0) - break; - - i = BIO_read(b->next_bio, &(ctx->tmp[ctx->tmp_len]), - B64_BLOCK_SIZE - ctx->tmp_len); - - if (i <= 0) { - ret_code = i; - - /* Should we continue next time we are called? */ - if (!BIO_should_retry(b->next_bio)) { - ctx->cont = i; - /* If buffer empty break */ - if (ctx->tmp_len == 0) - break; - /* Fall through and process what we have */ - else - i = 0; - } - /* else we retry and add more data to buffer */ - else - break; - } - i += ctx->tmp_len; - ctx->tmp_len = i; - - /* - * We need to scan, a line at a time until we have a valid line if we - * are starting. - */ - if (ctx->start && (BIO_get_flags(b) & BIO_FLAGS_BASE64_NO_NL)) { - /* ctx->start=1; */ - ctx->tmp_len = 0; - } else if (ctx->start) { - q = p = (unsigned char *)ctx->tmp; - num = 0; - for (j = 0; j < i; j++) { - if (*(q++) != '\n') - continue; - - /* - * due to a previous very long line, we need to keep on - * scanning for a '\n' before we even start looking for - * base64 encoded stuff. - */ - if (ctx->tmp_nl) { - p = q; - ctx->tmp_nl = 0; - continue; - } - - k = EVP_DecodeUpdate(&(ctx->base64), - (unsigned char *)ctx->buf, - &num, p, q - p); - if ((k <= 0) && (num == 0) && (ctx->start)) - EVP_DecodeInit(&ctx->base64); - else { - if (p != (unsigned char *) - &(ctx->tmp[0])) { - i -= (p - (unsigned char *) - &(ctx->tmp[0])); - for (x = 0; x < i; x++) - ctx->tmp[x] = p[x]; - } - EVP_DecodeInit(&ctx->base64); - ctx->start = 0; - break; - } - p = q; - } - - /* we fell off the end without starting */ - if ((j == i) && (num == 0)) { - /* - * Is this is one long chunk?, if so, keep on reading until a - * new line. - */ - if (p == (unsigned char *)&(ctx->tmp[0])) { - /* Check buffer full */ - if (i == B64_BLOCK_SIZE) { - ctx->tmp_nl = 1; - ctx->tmp_len = 0; - } - } else if (p != q) { /* finished on a '\n' */ - n = q - p; - for (ii = 0; ii < n; ii++) - ctx->tmp[ii] = p[ii]; - ctx->tmp_len = n; - } - /* else finished on a '\n' */ - continue; - } else { - ctx->tmp_len = 0; - } - } else if ((i < B64_BLOCK_SIZE) && (ctx->cont > 0)) { - /* - * If buffer isn't full and we can retry then restart to read in - * more data. - */ - continue; - } - - if (BIO_get_flags(b) & BIO_FLAGS_BASE64_NO_NL) { - int z, jj; - -#if 0 - jj = (i >> 2) << 2; -#else - jj = i & ~3; /* process per 4 */ -#endif - z = EVP_DecodeBlock((unsigned char *)ctx->buf, - (unsigned char *)ctx->tmp, jj); - if (jj > 2) { - if (ctx->tmp[jj - 1] == '=') { - z--; - if (ctx->tmp[jj - 2] == '=') - z--; - } - } - /* - * z is now number of output bytes and jj is the number consumed - */ - if (jj != i) { - memmove(ctx->tmp, &ctx->tmp[jj], i - jj); - ctx->tmp_len = i - jj; - } - ctx->buf_len = 0; - if (z > 0) { - ctx->buf_len = z; - } - i = z; - } else { - i = EVP_DecodeUpdate(&(ctx->base64), - (unsigned char *)ctx->buf, &ctx->buf_len, - (unsigned char *)ctx->tmp, i); - ctx->tmp_len = 0; - } - ctx->buf_off = 0; - if (i < 0) { - ret_code = 0; - ctx->buf_len = 0; - break; - } - - if (ctx->buf_len <= outl) - i = ctx->buf_len; - else - i = outl; - - memcpy(out, ctx->buf, i); - ret += i; - ctx->buf_off = i; - if (ctx->buf_off == ctx->buf_len) { - ctx->buf_len = 0; - ctx->buf_off = 0; - } - outl -= i; - out += i; - } - /* BIO_clear_retry_flags(b); */ - BIO_copy_next_retry(b); - return ((ret == 0) ? ret_code : ret); -} - -static int b64_write(BIO *b, const char *in, int inl) -{ - int ret = 0; - int n; - int i; - BIO_B64_CTX *ctx; - - ctx = (BIO_B64_CTX *)b->ptr; - BIO_clear_retry_flags(b); - - if (ctx->encode != B64_ENCODE) { - ctx->encode = B64_ENCODE; - ctx->buf_len = 0; - ctx->buf_off = 0; - ctx->tmp_len = 0; - EVP_EncodeInit(&(ctx->base64)); - } - - OPENSSL_assert(ctx->buf_off < (int)sizeof(ctx->buf)); - OPENSSL_assert(ctx->buf_len <= (int)sizeof(ctx->buf)); - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - n = ctx->buf_len - ctx->buf_off; - while (n > 0) { - i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n); - if (i <= 0) { - BIO_copy_next_retry(b); - return (i); - } - OPENSSL_assert(i <= n); - ctx->buf_off += i; - OPENSSL_assert(ctx->buf_off <= (int)sizeof(ctx->buf)); - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - n -= i; - } - /* at this point all pending data has been written */ - ctx->buf_off = 0; - ctx->buf_len = 0; - - if ((in == NULL) || (inl <= 0)) - return (0); - - while (inl > 0) { - n = (inl > B64_BLOCK_SIZE) ? B64_BLOCK_SIZE : inl; - - if (BIO_get_flags(b) & BIO_FLAGS_BASE64_NO_NL) { - if (ctx->tmp_len > 0) { - OPENSSL_assert(ctx->tmp_len <= 3); - n = 3 - ctx->tmp_len; - /* - * There's a theoretical possibility for this - */ - if (n > inl) - n = inl; - memcpy(&(ctx->tmp[ctx->tmp_len]), in, n); - ctx->tmp_len += n; - ret += n; - if (ctx->tmp_len < 3) - break; - ctx->buf_len = - EVP_EncodeBlock((unsigned char *)ctx->buf, - (unsigned char *)ctx->tmp, ctx->tmp_len); - OPENSSL_assert(ctx->buf_len <= (int)sizeof(ctx->buf)); - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - /* - * Since we're now done using the temporary buffer, the - * length should be 0'd - */ - ctx->tmp_len = 0; - } else { - if (n < 3) { - memcpy(ctx->tmp, in, n); - ctx->tmp_len = n; - ret += n; - break; - } - n -= n % 3; - ctx->buf_len = - EVP_EncodeBlock((unsigned char *)ctx->buf, - (const unsigned char *)in, n); - OPENSSL_assert(ctx->buf_len <= (int)sizeof(ctx->buf)); - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - ret += n; - } - } else { - EVP_EncodeUpdate(&(ctx->base64), - (unsigned char *)ctx->buf, &ctx->buf_len, - (unsigned char *)in, n); - OPENSSL_assert(ctx->buf_len <= (int)sizeof(ctx->buf)); - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - ret += n; - } - inl -= n; - in += n; - - ctx->buf_off = 0; - n = ctx->buf_len; - while (n > 0) { - i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n); - if (i <= 0) { - BIO_copy_next_retry(b); - return ((ret == 0) ? i : ret); - } - OPENSSL_assert(i <= n); - n -= i; - ctx->buf_off += i; - OPENSSL_assert(ctx->buf_off <= (int)sizeof(ctx->buf)); - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - } - ctx->buf_len = 0; - ctx->buf_off = 0; - } - return (ret); -} - -static long b64_ctrl(BIO *b, int cmd, long num, void *ptr) -{ - BIO_B64_CTX *ctx; - long ret = 1; - int i; - - ctx = (BIO_B64_CTX *)b->ptr; - - switch (cmd) { - case BIO_CTRL_RESET: - ctx->cont = 1; - ctx->start = 1; - ctx->encode = B64_NONE; - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); - break; - case BIO_CTRL_EOF: /* More to read */ - if (ctx->cont <= 0) - ret = 1; - else - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); - break; - case BIO_CTRL_WPENDING: /* More to write in buffer */ - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - ret = ctx->buf_len - ctx->buf_off; - if ((ret == 0) && (ctx->encode != B64_NONE) - && (ctx->base64.num != 0)) - ret = 1; - else if (ret <= 0) - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); - break; - case BIO_CTRL_PENDING: /* More to read in buffer */ - OPENSSL_assert(ctx->buf_len >= ctx->buf_off); - ret = ctx->buf_len - ctx->buf_off; - if (ret <= 0) - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); - break; - case BIO_CTRL_FLUSH: - /* do a final write */ - again: - while (ctx->buf_len != ctx->buf_off) { - i = b64_write(b, NULL, 0); - if (i < 0) - return i; - } - if (BIO_get_flags(b) & BIO_FLAGS_BASE64_NO_NL) { - if (ctx->tmp_len != 0) { - ctx->buf_len = EVP_EncodeBlock((unsigned char *)ctx->buf, - (unsigned char *)ctx->tmp, - ctx->tmp_len); - ctx->buf_off = 0; - ctx->tmp_len = 0; - goto again; - } - } else if (ctx->encode != B64_NONE && ctx->base64.num != 0) { - ctx->buf_off = 0; - EVP_EncodeFinal(&(ctx->base64), - (unsigned char *)ctx->buf, &(ctx->buf_len)); - /* push out the bytes */ - goto again; - } - /* Finally flush the underlying BIO */ - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); - break; - - case BIO_C_DO_STATE_MACHINE: - BIO_clear_retry_flags(b); - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); - BIO_copy_next_retry(b); - break; - - case BIO_CTRL_DUP: - break; - case BIO_CTRL_INFO: - case BIO_CTRL_GET: - case BIO_CTRL_SET: - default: - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); - break; - } - return (ret); -} - -static long b64_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp) -{ - long ret = 1; - - if (b->next_bio == NULL) - return (0); - switch (cmd) { - default: - ret = BIO_callback_ctrl(b->next_bio, cmd, fp); - break; - } - return (ret); -} - -static int b64_puts(BIO *b, const char *str) -{ - return b64_write(b, str, strlen(str)); -} |