1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/bio/bss_mem.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <errno.h> 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "cryptlib.h" 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/bio.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_write(BIO *h, const char *buf, int num); 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_read(BIO *h, char *buf, int size); 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_puts(BIO *h, const char *str); 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_gets(BIO *h, char *str, int size); 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic long mem_ctrl(BIO *h, int cmd, long arg1, void *arg2); 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_new(BIO *h); 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_free(BIO *data); 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic BIO_METHOD mem_method= 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_TYPE_MEM, 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "memory buffer", 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_write, 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_read, 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_puts, 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_gets, 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_ctrl, 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_new, 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_free, 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project NULL, 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project }; 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* bio->num is used to hold the value to return on 'empty', if it is 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 0, should_retry is not set */ 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectBIO_METHOD *BIO_s_mem(void) 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(&mem_method); 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectBIO *BIO_new_mem_buf(void *buf, int len) 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO *ret; 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *b; 97221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom size_t sz; 98221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!buf) { 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIOerr(BIO_F_BIO_NEW_MEM_BUF,BIO_R_NULL_PARAMETER); 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 103221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom sz = (len<0) ? strlen(buf) : (size_t)len; 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!(ret = BIO_new(BIO_s_mem())) ) return NULL; 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b = (BUF_MEM *)ret->ptr; 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->data = buf; 107221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom b->length = sz; 108221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom b->max = sz; 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->flags |= BIO_FLAGS_MEM_RDONLY; 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Since this is static data retrying wont help */ 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num = 0; 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ret; 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project} 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_new(BIO *bi) 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *b; 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((b=BUF_MEM_new()) == NULL) 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0); 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bi->shutdown=1; 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bi->init=1; 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bi->num= -1; 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bi->ptr=(char *)b; 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_free(BIO *a) 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a == NULL) return(0); 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a->shutdown) 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((a->init) && (a->ptr != NULL)) 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *b; 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b = (BUF_MEM *)a->ptr; 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(a->flags & BIO_FLAGS_MEM_RDONLY) b->data = NULL; 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM_free(b); 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->ptr=NULL; 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_read(BIO *b, char *out, int outl) 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret= -1; 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *bm; 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bm=(BUF_MEM *)b->ptr; 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_clear_retry_flags(b); 152221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ret=(outl >=0 && (size_t)outl > bm->length)?(int)bm->length:outl; 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((out != NULL) && (ret > 0)) { 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(out,bm->data,ret); 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bm->length-=ret; 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(b->flags & BIO_FLAGS_MEM_RDONLY) bm->data += ret; 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else { 158221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom memmove(&(bm->data[0]),&(bm->data[ret]),bm->length); 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } else if (bm->length == 0) 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = b->num; 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret != 0) 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_set_retry_read(b); 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_write(BIO *b, const char *in, int inl) 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret= -1; 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int blen; 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *bm; 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bm=(BUF_MEM *)b->ptr; 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (in == NULL) 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIOerr(BIO_F_MEM_WRITE,BIO_R_NULL_PARAMETER); 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(b->flags & BIO_FLAGS_MEM_RDONLY) { 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIOerr(BIO_F_MEM_WRITE,BIO_R_WRITE_TO_READ_ONLY_BIO); 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_clear_retry_flags(b); 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project blen=bm->length; 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (BUF_MEM_grow_clean(bm,blen+inl) != (blen+inl)) 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(&(bm->data[blen]),in,inl); 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=inl; 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectend: 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic long mem_ctrl(BIO *b, int cmd, long num, void *ptr) 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long ret=1; 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char **pptr; 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *bm=(BUF_MEM *)b->ptr; 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch (cmd) 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_RESET: 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (bm->data != NULL) 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* For read only case reset to the start again */ 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(b->flags & BIO_FLAGS_MEM_RDONLY) 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bm->data -= bm->max - bm->length; 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bm->length = bm->max; 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memset(bm->data,0,bm->max); 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bm->length=0; 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_EOF: 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=(long)(bm->length == 0); 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_C_SET_BUF_MEM_EOF_RETURN: 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->num=(int)num; 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_INFO: 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=(long)bm->length; 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ptr != NULL) 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pptr=(char **)ptr; 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *pptr=(char *)&(bm->data[0]); 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_C_SET_BUF_MEM: 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mem_free(b); 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->shutdown=(int)num; 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->ptr=ptr; 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_C_GET_BUF_MEM_PTR: 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ptr != NULL) 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pptr=(char **)ptr; 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *pptr=(char *)bm; 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_GET_CLOSE: 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=(long)b->shutdown; 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_SET_CLOSE: 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->shutdown=(int)num; 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_WPENDING: 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=0L; 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_PENDING: 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=(long)bm->length; 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_DUP: 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_FLUSH: 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=1; 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_PUSH: 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_POP: 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=0; 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_gets(BIO *bp, char *buf, int size) 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i,j; 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret= -1; 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *p; 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *bm=(BUF_MEM *)bp->ptr; 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_clear_retry_flags(bp); 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=bm->length; 283e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu if ((size-1) < j) j=size-1; 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (j <= 0) 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *buf='\0'; 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=bm->data; 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; i<j; i++) 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 292e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu if (p[i] == '\n') 293e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu { 294e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu i++; 295e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu break; 296e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu } 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 298e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu 299e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu /* 300e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu * i is now the max num of bytes to copy, either j or up to 301e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu * and including the first newline 302e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu */ 303e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=mem_read(bp,buf,i); 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i > 0) buf[i]='\0'; 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=i; 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int mem_puts(BIO *bp, const char *str) 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int n,ret; 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=strlen(str); 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=mem_write(bp,str,n); 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* memory semantics is that it will always work */ 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 320