1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* dso_dl.c -*- mode:C; c-file-style: "eay" -*- */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * project 2000. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 2000 The OpenSSL Project. All rights reserved. 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * licensing@OpenSSL.org. 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "cryptlib.h" 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/dso.h> 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef DSO_DL 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectDSO_METHOD *DSO_METHOD_dl(void) 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <dl.h> 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Part of the hack in "dl_load" ... */ 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DSO_MAX_TRANSLATED_SIZE 256 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_load(DSO *dso); 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_unload(DSO *dso); 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic void *dl_bind_var(DSO *dso, const char *symname); 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname); 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 0 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_unbind_var(DSO *dso, char *symname, void *symptr); 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr); 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_init(DSO *dso); 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_finish(DSO *dso); 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_ctrl(DSO *dso, int cmd, long larg, void *parg); 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic char *dl_name_converter(DSO *dso, const char *filename); 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic char *dl_merger(DSO *dso, const char *filespec1, const char *filespec2); 88221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic int dl_pathbyaddr(void *addr,char *path,int sz); 89221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void *dl_globallookup(const char *name); 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic DSO_METHOD dso_meth_dl = { 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "OpenSSL 'dl' shared library method", 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dl_load, 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dl_unload, 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dl_bind_var, 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dl_bind_func, 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* For now, "unbind" doesn't exist */ 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 0 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project NULL, /* unbind_var */ 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project NULL, /* unbind_func */ 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project NULL, /* ctrl */ 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dl_name_converter, 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dl_merger, 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project NULL, /* init */ 106221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom NULL, /* finish */ 107221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom dl_pathbyaddr, 108221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom dl_globallookup 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project }; 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectDSO_METHOD *DSO_METHOD_dl(void) 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(&dso_meth_dl); 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* For this DSO_METHOD, our meth_data STACK will contain; 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (i) the handle (shl_t) returned from shl_load(). 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NB: I checked on HPUX11 and shl_t is itself a pointer 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * type so the cast is safe. 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_load(DSO *dso) 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl_t ptr = NULL; 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We don't do any fancy retries or anything, just take the method's 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (or DSO's if it has the callback set) best translation of the 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * platform-independant filename and try once with that. */ 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *filename= DSO_convert_filename(dso, NULL); 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(filename == NULL) 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_LOAD,DSO_R_NO_FILENAME); 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ptr = shl_load(filename, BIND_IMMEDIATE | 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (dso->flags&DSO_FLAG_NO_NAME_TRANSLATION?0:DYNAMIC_PATH), 0L); 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ptr == NULL) 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_LOAD,DSO_R_LOAD_FAILED); 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_add_error_data(4, "filename(", filename, "): ", 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strerror(errno)); 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!sk_push(dso->meth_data, (char *)ptr)) 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_LOAD,DSO_R_STACK_ERROR); 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Success, stick the converted filename we've loaded under into the DSO 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (it also serves as the indicator that we are currently loaded). */ 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dso->loaded_filename = filename; 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr: 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Cleanup! */ 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(filename != NULL) 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(filename); 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ptr != NULL) 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl_unload(ptr); 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0); 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dl_unload(DSO *dso) 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl_t ptr; 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(dso == NULL) 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_UNLOAD,ERR_R_PASSED_NULL_PARAMETER); 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0); 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(sk_num(dso->meth_data) < 1) 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Is this statement legal? */ 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ptr = (shl_t)sk_pop(dso->meth_data); 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ptr == NULL) 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_UNLOAD,DSO_R_NULL_HANDLE); 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Should push the value back onto the stack in 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * case of a retry. */ 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sk_push(dso->meth_data, (char *)ptr); 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0); 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl_unload(ptr); 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic void *dl_bind_var(DSO *dso, const char *symname) 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl_t ptr; 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project void *sym; 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((dso == NULL) || (symname == NULL)) 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER); 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(sk_num(dso->meth_data) < 1) 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_VAR,DSO_R_STACK_ERROR); 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ptr = (shl_t)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1); 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ptr == NULL) 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_VAR,DSO_R_NULL_HANDLE); 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0) 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_VAR,DSO_R_SYM_FAILURE); 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_add_error_data(4, "symname(", symname, "): ", 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strerror(errno)); 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(sym); 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname) 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl_t ptr; 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project void *sym; 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((dso == NULL) || (symname == NULL)) 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_FUNC,ERR_R_PASSED_NULL_PARAMETER); 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(sk_num(dso->meth_data) < 1) 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_FUNC,DSO_R_STACK_ERROR); 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ptr = (shl_t)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1); 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ptr == NULL) 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_FUNC,DSO_R_NULL_HANDLE); 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0) 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_BIND_FUNC,DSO_R_SYM_FAILURE); 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_add_error_data(4, "symname(", symname, "): ", 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strerror(errno)); 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return((DSO_FUNC_TYPE)sym); 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic char *dl_merger(DSO *dso, const char *filespec1, const char *filespec2) 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *merged; 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!filespec1 && !filespec2) 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_MERGER, 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_PASSED_NULL_PARAMETER); 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If the first file specification is a rooted path, it rules. 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project same goes if the second file specification is missing. */ 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!filespec2 || filespec1[0] == '/') 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project merged = OPENSSL_malloc(strlen(filespec1) + 1); 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!merged) 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_MERGER, 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_MALLOC_FAILURE); 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strcpy(merged, filespec1); 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If the first file specification is missing, the second one rules. */ 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if (!filespec1) 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project merged = OPENSSL_malloc(strlen(filespec2) + 1); 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!merged) 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_MERGER, 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_MALLOC_FAILURE); 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strcpy(merged, filespec2); 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* This part isn't as trivial as it looks. It assumes that 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project the second file specification really is a directory, and 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project makes no checks whatsoever. Therefore, the result becomes 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project the concatenation of filespec2 followed by a slash followed 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project by filespec1. */ 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int spec2len, len; 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project spec2len = (filespec2 ? strlen(filespec2) : 0); 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project len = spec2len + (filespec1 ? strlen(filespec1) : 0); 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(filespec2 && filespec2[spec2len - 1] == '/') 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project spec2len--; 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project len--; 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project merged = OPENSSL_malloc(len + 2); 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!merged) 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_MERGER, 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_MALLOC_FAILURE); 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strcpy(merged, filespec2); 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project merged[spec2len] = '/'; 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strcpy(&merged[spec2len + 1], filespec1); 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(merged); 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* This function is identical to the one in dso_dlfcn.c, but as it is highly 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * unlikely that both the "dl" *and* "dlfcn" variants are being compiled at the 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * same time, there's no great duplicating the code. Figuring out an elegant 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * way to share one copy of the code would be more difficult and would not 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * leave the implementations independant. */ 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if defined(__hpux) 320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic const char extension[] = ".sl"; 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic const char extension[] = ".so"; 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic char *dl_name_converter(DSO *dso, const char *filename) 325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *translated; 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int len, rsize, transform; 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project len = strlen(filename); 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rsize = len + 1; 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project transform = (strstr(filename, "/") == NULL); 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We will convert this to "%s.s?" or "lib%s.s?" */ 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rsize += strlen(extension);/* The length of ".s?" */ 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rsize += 3; /* The length of "lib" */ 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project translated = OPENSSL_malloc(rsize); 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(translated == NULL) 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSOerr(DSO_F_DL_NAME_CONVERTER, 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO_R_NAME_TRANSLATION_FAILED); 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(transform) 346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) 348656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sprintf(translated, "lib%s%s", filename, extension); 349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sprintf(translated, "%s%s", filename, extension); 351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sprintf(translated, "%s", filename); 354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(translated); 355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 357221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic int dl_pathbyaddr(void *addr,char *path,int sz) 358221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 359221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom struct shl_descriptor inf; 360221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom int i,len; 361221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 362221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (addr == NULL) 363221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 364221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom union { int(*f)(void*,char*,int); void *p; } t = 365221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { dl_pathbyaddr }; 366221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom addr = t.p; 367221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 368221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 369221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom for (i=-1;shl_get_r(i,&inf)==0;i++) 370221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 371221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (((size_t)addr >= inf.tstart && (size_t)addr < inf.tend) || 372221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ((size_t)addr >= inf.dstart && (size_t)addr < inf.dend)) 373221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 374221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom len = (int)strlen(inf.filename); 375221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (sz <= 0) return len+1; 376221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (len >= sz) len=sz-1; 377221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom memcpy(path,inf.filename,len); 378221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom path[len++] = 0; 379221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return len; 380221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 381221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 382221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 383221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return -1; 384221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 385221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 386221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void *dl_globallookup(const char *name) 387221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 388221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom void *ret; 389221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom shl_t h = NULL; 390221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 391221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return shl_findsym(&h,name,TYPE_UNDEFINED,&ret) ? NULL : ret; 392221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif /* DSO_DL */ 394