From 5fc5d37330d3535a0f421632694d1e7918fc22d7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Tue, 8 Apr 2014 11:38:09 +0200 Subject: Compiles correctly: app/build-native + gradle. --- app/openssl/crypto/evp/bio_b64.c | 598 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 598 insertions(+) create mode 100644 app/openssl/crypto/evp/bio_b64.c (limited to 'app/openssl/crypto/evp/bio_b64.c') diff --git a/app/openssl/crypto/evp/bio_b64.c b/app/openssl/crypto/evp/bio_b64.c new file mode 100644 index 00000000..72a2a672 --- /dev/null +++ b/app/openssl/crypto/evp/bio_b64.c @@ -0,0 +1,598 @@ +/* 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 +#include +#include "cryptlib.h" +#include +#include + +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; + for (j=0; jtmp_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) + { + /* 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; iitmp[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)); + } -- cgit v1.2.3