Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/conf/conf_mod.c

Index: openssl/crypto/conf/conf_mod.c
diff --git a/openssl/crypto/conf/conf_mod.c b/openssl/crypto/conf/conf_mod.c
deleted file mode 100644
index df1642a0a56216f3dff4bdd04ed6a96126af1f8b..0000000000000000000000000000000000000000
--- a/openssl/crypto/conf/conf_mod.c
+++ /dev/null
@@ -1,623 +0,0 @@
-/* conf_mod.c */
-/* Written by Stephen Henson (steve@openssl.org) for the OpenSSL
- * project 2001.
- */
-/* ====================================================================
- * Copyright (c) 2001 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).
- *
- */
-
-#include <stdio.h>
-#include <ctype.h>
-#include <openssl/crypto.h>
-#include "cryptlib.h"
-#include <openssl/conf.h>
-#include <openssl/dso.h>
-#include <openssl/x509.h>
-
-
-#define DSO_mod_init_name "OPENSSL_init"
-#define DSO_mod_finish_name "OPENSSL_finish"
-
-
-/* This structure contains a data about supported modules.
- * entries in this table correspond to either dynamic or
- * static modules.
- */
-
-struct conf_module_st
-	{
-	/* DSO of this module or NULL if static */
-	DSO *dso;
-	/* Name of the module */
-	char *name;
-	/* Init function */
-	conf_init_func *init; 
-	/* Finish function */
-	conf_finish_func *finish;
-	/* Number of successfully initialized modules */
-	int links;
-	void *usr_data;
-	};
-
-
-/* This structure contains information about modules that have been
- * successfully initialized. There may be more than one entry for a
- * given module.
- */
-
-struct conf_imodule_st
-	{
-	CONF_MODULE *pmod;
-	char *name;
-	char *value;
-	unsigned long flags;
-	void *usr_data;
-	};
-
-static STACK_OF(CONF_MODULE) *supported_modules = NULL;
-static STACK_OF(CONF_IMODULE) *initialized_modules = NULL;
-
-static void module_free(CONF_MODULE *md);
-static void module_finish(CONF_IMODULE *imod);
-static int module_run(const CONF *cnf, char *name, char *value,
-					  unsigned long flags);
-static CONF_MODULE *module_add(DSO *dso, const char *name,
-			conf_init_func *ifunc, conf_finish_func *ffunc);
-static CONF_MODULE *module_find(char *name);
-static int module_init(CONF_MODULE *pmod, char *name, char *value,
-					   const CONF *cnf);
-static CONF_MODULE *module_load_dso(const CONF *cnf, char *name, char *value,
-									unsigned long flags);
-
-/* Main function: load modules from a CONF structure */
-
-int CONF_modules_load(const CONF *cnf, const char *appname,
-		      unsigned long flags)
-	{
-	STACK_OF(CONF_VALUE) *values;
-	CONF_VALUE *vl;
-	char *vsection = NULL;
-
-	int ret, i;
-
-	if (!cnf)
-		return 1;
-
-	if (appname)
-		vsection = NCONF_get_string(cnf, NULL, appname);
-
-	if (!appname || (!vsection && (flags & CONF_MFLAGS_DEFAULT_SECTION)))
-		vsection = NCONF_get_string(cnf, NULL, "openssl_conf");
-
-	if (!vsection)
-		{
-		ERR_clear_error();
-		return 1;
-		}
-
-	values = NCONF_get_section(cnf, vsection);
-
-	if (!values)
-		return 0;
-
-	for (i = 0; i < sk_CONF_VALUE_num(values); i++)
-		{
-		vl = sk_CONF_VALUE_value(values, i);
-		ret = module_run(cnf, vl->name, vl->value, flags);
-		if (ret <= 0)
-			if(!(flags & CONF_MFLAGS_IGNORE_ERRORS))
-				return ret;
-		}
-
-	return 1;
-
-	}
-
-int CONF_modules_load_file(const char *filename, const char *appname,
-			   unsigned long flags)
-	{
-	char *file = NULL;
-	CONF *conf = NULL;
-	int ret = 0;
-	conf = NCONF_new(NULL);
-	if (!conf)
-		goto err;
-
-	if (filename == NULL)
-		{
-		file = CONF_get1_default_config_file();
-		if (!file)
-			goto err;
-		}
-	else
-		file = (char *)filename;
-
-	if (NCONF_load(conf, file, NULL) <= 0)
-		{
-		if ((flags & CONF_MFLAGS_IGNORE_MISSING_FILE) &&
-		  (ERR_GET_REASON(ERR_peek_last_error()) == CONF_R_NO_SUCH_FILE))
-			{
-			ERR_clear_error();
-			ret = 1;
-			}
-		goto err;
-		}
-
-	ret = CONF_modules_load(conf, appname, flags);
-
-	err:
-	if (filename == NULL)
-		OPENSSL_free(file);
-	NCONF_free(conf);
-
-	return ret;
-	}
-
-static int module_run(const CONF *cnf, char *name, char *value,
-		      unsigned long flags)
-	{
-	CONF_MODULE *md;
-	int ret;
-
-	md = module_find(name);
-
-	/* Module not found: try to load DSO */
-	if (!md && !(flags & CONF_MFLAGS_NO_DSO))
-		md = module_load_dso(cnf, name, value, flags);
-
-	if (!md)
-		{
-		if (!(flags & CONF_MFLAGS_SILENT))
-			{
-			CONFerr(CONF_F_MODULE_RUN, CONF_R_UNKNOWN_MODULE_NAME);
-			ERR_add_error_data(2, "module=", name);
-			}
-		return -1;
-		}
-
-	ret = module_init(md, name, value, cnf);
-
-	if (ret <= 0)
-		{
-		if (!(flags & CONF_MFLAGS_SILENT))
-			{
-			char rcode[DECIMAL_SIZE(ret)+1];
-			CONFerr(CONF_F_MODULE_RUN, CONF_R_MODULE_INITIALIZATION_ERROR);
-			BIO_snprintf(rcode, sizeof rcode, "%-8d", ret);
-			ERR_add_error_data(6, "module=", name, ", value=", value, ", retcode=", rcode);
-			}
-		}
-
-	return ret;
-	}
-
-/* Load a module from a DSO */
-static CONF_MODULE *module_load_dso(const CONF *cnf, char *name, char *value,
-				    unsigned long flags)
-	{
-	DSO *dso = NULL;
-	conf_init_func *ifunc;
-	conf_finish_func *ffunc;
-	char *path = NULL;
-	int errcode = 0;
-	CONF_MODULE *md;
-	/* Look for alternative path in module section */
-	path = NCONF_get_string(cnf, value, "path");
-	if (!path)
-		{
-		ERR_clear_error();
-		path = name;
-		}
-	dso = DSO_load(NULL, path, NULL, 0);
-	if (!dso)
-		{
-		errcode = CONF_R_ERROR_LOADING_DSO;
-		goto err;
-		}
-        ifunc = (conf_init_func *)DSO_bind_func(dso, DSO_mod_init_name);
-	if (!ifunc)
-		{
-		errcode = CONF_R_MISSING_INIT_FUNCTION;
-		goto err;
-		}
-        ffunc = (conf_finish_func *)DSO_bind_func(dso, DSO_mod_finish_name);
-	/* All OK, add module */
-	md = module_add(dso, name, ifunc, ffunc);
-
-	if (!md)
-		goto err;
-
-	return md;
-
-	err:
-	if (dso)
-		DSO_free(dso);
-	CONFerr(CONF_F_MODULE_LOAD_DSO, errcode);
-	ERR_add_error_data(4, "module=", name, ", path=", path);
-	return NULL;
-	}
-
-/* add module to list */
-static CONF_MODULE *module_add(DSO *dso, const char *name,
-			       conf_init_func *ifunc, conf_finish_func *ffunc)
-	{
-	CONF_MODULE *tmod = NULL;
-	if (supported_modules == NULL)
-		supported_modules = sk_CONF_MODULE_new_null();
-	if (supported_modules == NULL)
-		return NULL;
-	tmod = OPENSSL_malloc(sizeof(CONF_MODULE));
-	if (tmod == NULL)
-		return NULL;
-
-	tmod->dso = dso;
-	tmod->name = BUF_strdup(name);
-	tmod->init = ifunc;
-	tmod->finish = ffunc;
-	tmod->links = 0;
-
-	if (!sk_CONF_MODULE_push(supported_modules, tmod))
-		{
-		OPENSSL_free(tmod);
-		return NULL;
-		}
-
-	return tmod;
-	}
-
-/* Find a module from the list. We allow module names of the
- * form modname.XXXX to just search for modname to allow the
- * same module to be initialized more than once.
- */
-
-static CONF_MODULE *module_find(char *name)
-	{
-	CONF_MODULE *tmod;
-	int i, nchar;
-	char *p;
-	p = strrchr(name, '.');
-
-	if (p)
-		nchar = p - name;
-	else 
-		nchar = strlen(name);
-
-	for (i = 0; i < sk_CONF_MODULE_num(supported_modules); i++)
-		{
-		tmod = sk_CONF_MODULE_value(supported_modules, i);
-		if (!strncmp(tmod->name, name, nchar))
-			return tmod;
-		}
-
-	return NULL;
-
-	}
-
-/* initialize a module */
-static int module_init(CONF_MODULE *pmod, char *name, char *value,
-		       const CONF *cnf)
-	{
-	int ret = 1;
-	int init_called = 0;
-	CONF_IMODULE *imod = NULL;
-
-	/* Otherwise add initialized module to list */
-	imod = OPENSSL_malloc(sizeof(CONF_IMODULE));
-	if (!imod)
-		goto err;
-
-	imod->pmod = pmod;
-	imod->name = BUF_strdup(name);
-	imod->value = BUF_strdup(value);
-	imod->usr_data = NULL;
-
-	if (!imod->name || !imod->value)
-		goto memerr;
-
-	/* Try to initialize module */
-	if(pmod->init)
-		{
-		ret = pmod->init(imod, cnf);
-		init_called = 1;
-		/* Error occurred, exit */
-		if (ret <= 0)
-			goto err;
-		}
-
-	if (initialized_modules == NULL)
-		{
-		initialized_modules = sk_CONF_IMODULE_new_null();
-		if (!initialized_modules)
-			{
-			CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE);
-			goto err;
-			}
-		}
-
-	if (!sk_CONF_IMODULE_push(initialized_modules, imod))
-		{
-		CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-
-	pmod->links++;
-
-	return ret;
-
-	err:
-
-	/* We've started the module so we'd better finish it */
-	if (pmod->finish && init_called)
-		pmod->finish(imod);
-
-	memerr:
-	if (imod)
-		{
-		if (imod->name)
-			OPENSSL_free(imod->name);
-		if (imod->value)
-			OPENSSL_free(imod->value);
-		OPENSSL_free(imod);
-		}
-
-	return -1;
-
-	}
-
-/* Unload any dynamic modules that have a link count of zero:
- * i.e. have no active initialized modules. If 'all' is set
- * then all modules are unloaded including static ones.
- */
-
-void CONF_modules_unload(int all)
-	{
-	int i;
-	CONF_MODULE *md;
-	CONF_modules_finish();
-	/* unload modules in reverse order */
-	for (i = sk_CONF_MODULE_num(supported_modules) - 1; i >= 0; i--)
-		{
-		md = sk_CONF_MODULE_value(supported_modules, i);
-		/* If static or in use and 'all' not set ignore it */
-		if (((md->links > 0) || !md->dso) && !all)
-			continue;
-		/* Since we're working in reverse this is OK */
-		(void)sk_CONF_MODULE_delete(supported_modules, i);
-		module_free(md);
-		}
-	if (sk_CONF_MODULE_num(supported_modules) == 0)
-		{
-		sk_CONF_MODULE_free(supported_modules);
-		supported_modules = NULL;
-		}
-	}
-
-/* unload a single module */
-static void module_free(CONF_MODULE *md)
-	{
-	if (md->dso)
-		DSO_free(md->dso);
-	OPENSSL_free(md->name);
-	OPENSSL_free(md);
-	}
-
-/* finish and free up all modules instances */
-
-void CONF_modules_finish(void)
-	{
-	CONF_IMODULE *imod;
-	while (sk_CONF_IMODULE_num(initialized_modules) > 0)
-		{
-		imod = sk_CONF_IMODULE_pop(initialized_modules);
-		module_finish(imod);
-		}
-	sk_CONF_IMODULE_free(initialized_modules);
-	initialized_modules = NULL;
-	}
-
-/* finish a module instance */
-
-static void module_finish(CONF_IMODULE *imod)
-	{
-	if (imod->pmod->finish)
-		imod->pmod->finish(imod);
-	imod->pmod->links--;
-	OPENSSL_free(imod->name);
-	OPENSSL_free(imod->value);
-	OPENSSL_free(imod);
-	}
-
-/* Add a static module to OpenSSL */
-
-int CONF_module_add(const char *name, conf_init_func *ifunc, 
-		    conf_finish_func *ffunc)
-	{
-	if (module_add(NULL, name, ifunc, ffunc))
-		return 1;
-	else
-		return 0;
-	}
-
-void CONF_modules_free(void)
-	{
-	CONF_modules_finish();
-	CONF_modules_unload(1);
-	}
-
-/* Utility functions */
-
-const char *CONF_imodule_get_name(const CONF_IMODULE *md)
-	{
-	return md->name;
-	}
-
-const char *CONF_imodule_get_value(const CONF_IMODULE *md)
-	{
-	return md->value;
-	}
-
-void *CONF_imodule_get_usr_data(const CONF_IMODULE *md)
-	{
-	return md->usr_data;
-	}
-
-void CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data)
-	{
-	md->usr_data = usr_data;
-	}
-
-CONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md)
-	{
-	return md->pmod;
-	}
-
-unsigned long CONF_imodule_get_flags(const CONF_IMODULE *md)
-	{
-	return md->flags;
-	}
-
-void CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags)
-	{
-	md->flags = flags;
-	}
-
-void *CONF_module_get_usr_data(CONF_MODULE *pmod)
-	{
-	return pmod->usr_data;
-	}
-
-void CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data)
-	{
-	pmod->usr_data = usr_data;
-	}
-
-/* Return default config file name */
-
-char *CONF_get1_default_config_file(void)
-	{
-	char *file;
-	int len;
-
-	file = getenv("OPENSSL_CONF");
-	if (file) 
-		return BUF_strdup(file);
-
-	len = strlen(X509_get_default_cert_area());
-#ifndef OPENSSL_SYS_VMS
-	len++;
-#endif
-	len += strlen(OPENSSL_CONF);
-
-	file = OPENSSL_malloc(len + 1);
-
-	if (!file)
-		return NULL;
-	BUF_strlcpy(file,X509_get_default_cert_area(),len + 1);
-#ifndef OPENSSL_SYS_VMS
-	BUF_strlcat(file,"/",len + 1);
-#endif
-	BUF_strlcat(file,OPENSSL_CONF,len + 1);
-
-	return file;
-	}
-
-/* This function takes a list separated by 'sep' and calls the
- * callback function giving the start and length of each member
- * optionally stripping leading and trailing whitespace. This can
- * be used to parse comma separated lists for example.
- */
-
-int CONF_parse_list(const char *list_, int sep, int nospc,
-	int (*list_cb)(const char *elem, int len, void *usr), void *arg)
-	{
-	int ret;
-	const char *lstart, *tmpend, *p;
-
-	if(list_ == NULL)
-		{
-		CONFerr(CONF_F_CONF_PARSE_LIST, CONF_R_LIST_CANNOT_BE_NULL);
-		return 0;
-		}
-
-	lstart = list_;
-	for(;;)
-		{
-		if (nospc)
-			{
-			while(*lstart && isspace((unsigned char)*lstart))
-				lstart++;
-			}
-		p = strchr(lstart, sep);
-		if (p == lstart || !*lstart)
-			ret = list_cb(NULL, 0, arg);
-		else
-			{
-			if (p)
-				tmpend = p - 1;
-			else 
-				tmpend = lstart + strlen(lstart) - 1;
-			if (nospc)
-				{
-				while(isspace((unsigned char)*tmpend))
-					tmpend--;
-				}
-			ret = list_cb(lstart, tmpend - lstart + 1, arg);
-			}
-		if (ret <= 0)
-			return ret;
-		if (p == NULL)
-			return 1;
-		lstart = p + 1;
-		}
-	}
-