diff options
Diffstat (limited to 'app/openssl/crypto/dso/dso_dlfcn.c')
| -rw-r--r-- | app/openssl/crypto/dso/dso_dlfcn.c | 484 |
1 files changed, 0 insertions, 484 deletions
diff --git a/app/openssl/crypto/dso/dso_dlfcn.c b/app/openssl/crypto/dso/dso_dlfcn.c deleted file mode 100644 index 4a56aace..00000000 --- a/app/openssl/crypto/dso/dso_dlfcn.c +++ /dev/null @@ -1,484 +0,0 @@ -/* dso_dlfcn.c -*- mode:C; c-file-style: "eay" -*- */ -/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL - * project 2000. - */ -/* ==================================================================== - * Copyright (c) 2000 The OpenSSL Project. All rights reserved. - * - * 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 above 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 acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED 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 OpenSSL PROJECT OR - * ITS 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -/* We need to do this early, because stdio.h includes the header files - that handle _GNU_SOURCE and other similar macros. Defining it later - is simply too late, because those headers are protected from re- - inclusion. */ -#ifdef __linux -# ifndef _GNU_SOURCE -# define _GNU_SOURCE /* make sure dladdr is declared */ -# endif -#endif - -#include <stdio.h> -#include "cryptlib.h" -#include <openssl/dso.h> - -#ifndef DSO_DLFCN -DSO_METHOD *DSO_METHOD_dlfcn(void) - { - return NULL; - } -#else - -#ifdef HAVE_DLFCN_H -# ifdef __osf__ -# define __EXTENSIONS__ -# endif -# include <dlfcn.h> -# define HAVE_DLINFO 1 -# if defined(_AIX) || defined(__CYGWIN__) || \ - defined(__SCO_VERSION__) || defined(_SCO_ELF) || \ - (defined(__osf__) && !defined(RTLD_NEXT)) || \ - (defined(__OpenBSD__) && !defined(RTLD_SELF)) || \ - defined(__ANDROID__) -# undef HAVE_DLINFO -# endif -#endif - -/* Part of the hack in "dlfcn_load" ... */ -#define DSO_MAX_TRANSLATED_SIZE 256 - -static int dlfcn_load(DSO *dso); -static int dlfcn_unload(DSO *dso); -static void *dlfcn_bind_var(DSO *dso, const char *symname); -static DSO_FUNC_TYPE dlfcn_bind_func(DSO *dso, const char *symname); -#if 0 -static int dlfcn_unbind(DSO *dso, char *symname, void *symptr); -static int dlfcn_init(DSO *dso); -static int dlfcn_finish(DSO *dso); -static long dlfcn_ctrl(DSO *dso, int cmd, long larg, void *parg); -#endif -static char *dlfcn_name_converter(DSO *dso, const char *filename); -static char *dlfcn_merger(DSO *dso, const char *filespec1, - const char *filespec2); -static int dlfcn_pathbyaddr(void *addr,char *path,int sz); -static void *dlfcn_globallookup(const char *name); - -static DSO_METHOD dso_meth_dlfcn = { - "OpenSSL 'dlfcn' shared library method", - dlfcn_load, - dlfcn_unload, - dlfcn_bind_var, - dlfcn_bind_func, -/* For now, "unbind" doesn't exist */ -#if 0 - NULL, /* unbind_var */ - NULL, /* unbind_func */ -#endif - NULL, /* ctrl */ - dlfcn_name_converter, - dlfcn_merger, - NULL, /* init */ - NULL, /* finish */ - dlfcn_pathbyaddr, - dlfcn_globallookup - }; - -DSO_METHOD *DSO_METHOD_dlfcn(void) - { - return(&dso_meth_dlfcn); - } - -/* Prior to using the dlopen() function, we should decide on the flag - * we send. There's a few different ways of doing this and it's a - * messy venn-diagram to match up which platforms support what. So - * as we don't have autoconf yet, I'm implementing a hack that could - * be hacked further relatively easily to deal with cases as we find - * them. Initially this is to cope with OpenBSD. */ -#if defined(__OpenBSD__) || defined(__NetBSD__) -# ifdef DL_LAZY -# define DLOPEN_FLAG DL_LAZY -# else -# ifdef RTLD_NOW -# define DLOPEN_FLAG RTLD_NOW -# else -# define DLOPEN_FLAG 0 -# endif -# endif -#else -# ifdef OPENSSL_SYS_SUNOS -# define DLOPEN_FLAG 1 -# else -# define DLOPEN_FLAG RTLD_NOW /* Hope this works everywhere else */ -# endif -#endif - -/* For this DSO_METHOD, our meth_data STACK will contain; - * (i) the handle (void*) returned from dlopen(). - */ - -static int dlfcn_load(DSO *dso) - { - void *ptr = NULL; - /* See applicable comments in dso_dl.c */ - char *filename = DSO_convert_filename(dso, NULL); - int flags = DLOPEN_FLAG; - - if(filename == NULL) - { - DSOerr(DSO_F_DLFCN_LOAD,DSO_R_NO_FILENAME); - goto err; - } - -#ifdef RTLD_GLOBAL - if (dso->flags & DSO_FLAG_GLOBAL_SYMBOLS) - flags |= RTLD_GLOBAL; -#endif - ptr = dlopen(filename, flags); - if(ptr == NULL) - { - DSOerr(DSO_F_DLFCN_LOAD,DSO_R_LOAD_FAILED); - ERR_add_error_data(4, "filename(", filename, "): ", dlerror()); - goto err; - } - if(!sk_void_push(dso->meth_data, (char *)ptr)) - { - DSOerr(DSO_F_DLFCN_LOAD,DSO_R_STACK_ERROR); - goto err; - } - /* Success */ - dso->loaded_filename = filename; - return(1); -err: - /* Cleanup! */ - if(filename != NULL) - OPENSSL_free(filename); - if(ptr != NULL) - dlclose(ptr); - return(0); -} - -static int dlfcn_unload(DSO *dso) - { - void *ptr; - if(dso == NULL) - { - DSOerr(DSO_F_DLFCN_UNLOAD,ERR_R_PASSED_NULL_PARAMETER); - return(0); - } - if(sk_void_num(dso->meth_data) < 1) - return(1); - ptr = sk_void_pop(dso->meth_data); - if(ptr == NULL) - { - DSOerr(DSO_F_DLFCN_UNLOAD,DSO_R_NULL_HANDLE); - /* Should push the value back onto the stack in - * case of a retry. */ - sk_void_push(dso->meth_data, ptr); - return(0); - } - /* For now I'm not aware of any errors associated with dlclose() */ - dlclose(ptr); - return(1); - } - -static void *dlfcn_bind_var(DSO *dso, const char *symname) - { - void *ptr, *sym; - - if((dso == NULL) || (symname == NULL)) - { - DSOerr(DSO_F_DLFCN_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER); - return(NULL); - } - if(sk_void_num(dso->meth_data) < 1) - { - DSOerr(DSO_F_DLFCN_BIND_VAR,DSO_R_STACK_ERROR); - return(NULL); - } - ptr = sk_void_value(dso->meth_data, sk_void_num(dso->meth_data) - 1); - if(ptr == NULL) - { - DSOerr(DSO_F_DLFCN_BIND_VAR,DSO_R_NULL_HANDLE); - return(NULL); - } - sym = dlsym(ptr, symname); - if(sym == NULL) - { - DSOerr(DSO_F_DLFCN_BIND_VAR,DSO_R_SYM_FAILURE); - ERR_add_error_data(4, "symname(", symname, "): ", dlerror()); - return(NULL); - } - return(sym); - } - -static DSO_FUNC_TYPE dlfcn_bind_func(DSO *dso, const char *symname) - { - void *ptr; - union { - DSO_FUNC_TYPE sym; - void *dlret; - } u; - - if((dso == NULL) || (symname == NULL)) - { - DSOerr(DSO_F_DLFCN_BIND_FUNC,ERR_R_PASSED_NULL_PARAMETER); - return(NULL); - } - if(sk_void_num(dso->meth_data) < 1) - { - DSOerr(DSO_F_DLFCN_BIND_FUNC,DSO_R_STACK_ERROR); - return(NULL); - } - ptr = sk_void_value(dso->meth_data, sk_void_num(dso->meth_data) - 1); - if(ptr == NULL) - { - DSOerr(DSO_F_DLFCN_BIND_FUNC,DSO_R_NULL_HANDLE); - return(NULL); - } - u.dlret = dlsym(ptr, symname); - if(u.dlret == NULL) - { - DSOerr(DSO_F_DLFCN_BIND_FUNC,DSO_R_SYM_FAILURE); - ERR_add_error_data(4, "symname(", symname, "): ", dlerror()); - return(NULL); - } - return u.sym; - } - -static char *dlfcn_merger(DSO *dso, const char *filespec1, - const char *filespec2) - { - char *merged; - - if(!filespec1 && !filespec2) - { - DSOerr(DSO_F_DLFCN_MERGER, - ERR_R_PASSED_NULL_PARAMETER); - return(NULL); - } - /* If the first file specification is a rooted path, it rules. - same goes if the second file specification is missing. */ - if (!filespec2 || (filespec1 != NULL && filespec1[0] == '/')) - { - merged = OPENSSL_malloc(strlen(filespec1) + 1); - if(!merged) - { - DSOerr(DSO_F_DLFCN_MERGER, ERR_R_MALLOC_FAILURE); - return(NULL); - } - strcpy(merged, filespec1); - } - /* If the first file specification is missing, the second one rules. */ - else if (!filespec1) - { - merged = OPENSSL_malloc(strlen(filespec2) + 1); - if(!merged) - { - DSOerr(DSO_F_DLFCN_MERGER, - ERR_R_MALLOC_FAILURE); - return(NULL); - } - strcpy(merged, filespec2); - } - else - /* This part isn't as trivial as it looks. It assumes that - the second file specification really is a directory, and - makes no checks whatsoever. Therefore, the result becomes - the concatenation of filespec2 followed by a slash followed - by filespec1. */ - { - int spec2len, len; - - spec2len = strlen(filespec2); - len = spec2len + (filespec1 ? strlen(filespec1) : 0); - - if(filespec2 && filespec2[spec2len - 1] == '/') - { - spec2len--; - len--; - } - merged = OPENSSL_malloc(len + 2); - if(!merged) - { - DSOerr(DSO_F_DLFCN_MERGER, - ERR_R_MALLOC_FAILURE); - return(NULL); - } - strcpy(merged, filespec2); - merged[spec2len] = '/'; - strcpy(&merged[spec2len + 1], filespec1); - } - return(merged); - } - -#ifdef OPENSSL_SYS_MACOSX -#define DSO_ext ".dylib" -#define DSO_extlen 6 -#else -#define DSO_ext ".so" -#define DSO_extlen 3 -#endif - - -static char *dlfcn_name_converter(DSO *dso, const char *filename) - { - char *translated; - int len, rsize, transform; - - len = strlen(filename); - rsize = len + 1; - transform = (strstr(filename, "/") == NULL); - if(transform) - { - /* We will convert this to "%s.so" or "lib%s.so" etc */ - rsize += DSO_extlen; /* The length of ".so" */ - if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) - rsize += 3; /* The length of "lib" */ - } - translated = OPENSSL_malloc(rsize); - if(translated == NULL) - { - DSOerr(DSO_F_DLFCN_NAME_CONVERTER, - DSO_R_NAME_TRANSLATION_FAILED); - return(NULL); - } - if(transform) - { - if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) - sprintf(translated, "lib%s" DSO_ext, filename); - else - sprintf(translated, "%s" DSO_ext, filename); - } - else - sprintf(translated, "%s", filename); - return(translated); - } - -#ifdef __sgi -/* -This is a quote from IRIX manual for dladdr(3c): - - <dlfcn.h> does not contain a prototype for dladdr or definition of - Dl_info. The #include <dlfcn.h> in the SYNOPSIS line is traditional, - but contains no dladdr prototype and no IRIX library contains an - implementation. Write your own declaration based on the code below. - - The following code is dependent on internal interfaces that are not - part of the IRIX compatibility guarantee; however, there is no future - intention to change this interface, so on a practical level, the code - below is safe to use on IRIX. -*/ -#include <rld_interface.h> -#ifndef _RLD_INTERFACE_DLFCN_H_DLADDR -#define _RLD_INTERFACE_DLFCN_H_DLADDR -typedef struct Dl_info { - const char * dli_fname; - void * dli_fbase; - const char * dli_sname; - void * dli_saddr; - int dli_version; - int dli_reserved1; - long dli_reserved[4]; -} Dl_info; -#else -typedef struct Dl_info Dl_info; -#endif -#define _RLD_DLADDR 14 - -static int dladdr(void *address, Dl_info *dl) -{ - void *v; - v = _rld_new_interface(_RLD_DLADDR,address,dl); - return (int)v; -} -#endif /* __sgi */ - -static int dlfcn_pathbyaddr(void *addr,char *path,int sz) - { -#ifdef HAVE_DLINFO - Dl_info dli; - int len; - - if (addr == NULL) - { - union { int(*f)(void*,char*,int); void *p; } t = - { dlfcn_pathbyaddr }; - addr = t.p; - } - - if (dladdr(addr,&dli)) - { - len = (int)strlen(dli.dli_fname); - if (sz <= 0) return len+1; - if (len >= sz) len=sz-1; - memcpy(path,dli.dli_fname,len); - path[len++]=0; - return len; - } - - ERR_add_error_data(2, "dlfcn_pathbyaddr(): ", dlerror()); -#endif - return -1; - } - -static void *dlfcn_globallookup(const char *name) - { - void *ret = NULL,*handle = dlopen(NULL,RTLD_LAZY); - - if (handle) - { - ret = dlsym(handle,name); - dlclose(handle); - } - - return ret; - } -#endif /* DSO_DLFCN */ |