Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/dso/dso_dlfcn.c

Index: openssl/crypto/dso/dso_dlfcn.c
diff --git a/openssl/crypto/dso/dso_dlfcn.c b/openssl/crypto/dso/dso_dlfcn.c
deleted file mode 100644
index 5f2254806ca903d71d3f261d042db1345fcfbe4f..0000000000000000000000000000000000000000
--- a/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(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 */