summaryrefslogtreecommitdiff
path: root/app/openssl/crypto/dso/dso_dlfcn.c
diff options
context:
space:
mode:
Diffstat (limited to 'app/openssl/crypto/dso/dso_dlfcn.c')
-rw-r--r--app/openssl/crypto/dso/dso_dlfcn.c483
1 files changed, 0 insertions, 483 deletions
diff --git a/app/openssl/crypto/dso/dso_dlfcn.c b/app/openssl/crypto/dso/dso_dlfcn.c
deleted file mode 100644
index c2bc6176..00000000
--- a/app/openssl/crypto/dso/dso_dlfcn.c
+++ /dev/null
@@ -1,483 +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))
-# 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(4, "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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 00:11:12 +0000