Update openssl to version openssl-1.0.1m

Conflicts:
	openssl/Makefile
	openssl/Makefile.bak
	openssl/crypto/cryptlib.c

1 files changed, 320 insertions, 318 deletions

diff --git a/openssl/engines/e_nuron.c b/openssl/engines/e_nuron.c
index 4c2537cbc..3437f3604 100644
--- a/openssl/engines/e_nuron.c
+++ b/openssl/engines/e_nuron.c
@@ -1,5 +1,6 @@
 /* crypto/engine/hw_nuron.c */
-/* Written by Ben Laurie for the OpenSSL Project, leaning heavily on Geoff
+/*
+ * Written by Ben Laurie for the OpenSSL Project, leaning heavily on Geoff
  * Thorpe's Atalla implementation.
  */
 /* ====================================================================
@@ -10,7 +11,7 @@
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
+ *    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
@@ -63,372 +64,373 @@
 #include <openssl/dso.h>
 #include <openssl/engine.h>
 #ifndef OPENSSL_NO_RSA
-#include <openssl/rsa.h>
+# include <openssl/rsa.h>
 #endif
 #ifndef OPENSSL_NO_DSA
-#include <openssl/dsa.h>
+# include <openssl/dsa.h>
 #endif
 #ifndef OPENSSL_NO_DH
-#include <openssl/dh.h>
+# include <openssl/dh.h>
 #endif
 #include <openssl/bn.h>
 
 #ifndef OPENSSL_NO_HW
-#ifndef OPENSSL_NO_HW_NURON
+# ifndef OPENSSL_NO_HW_NURON
 
-#define NURON_LIB_NAME "nuron engine"
-#include "e_nuron_err.c"
+#  define NURON_LIB_NAME "nuron engine"
+#  include "e_nuron_err.c"
 
 static const char *NURON_LIBNAME = NULL;
 static const char *get_NURON_LIBNAME(void)
-	{
-	if(NURON_LIBNAME)
-		return NURON_LIBNAME;
-	return "nuronssl";
-	}
+{
+    if (NURON_LIBNAME)
+        return NURON_LIBNAME;
+    return "nuronssl";
+}
+
 static void free_NURON_LIBNAME(void)
-	{
-	if(NURON_LIBNAME)
-		OPENSSL_free((void*)NURON_LIBNAME);
-	NURON_LIBNAME = NULL;
-	}
+{
+    if (NURON_LIBNAME)
+        OPENSSL_free((void *)NURON_LIBNAME);
+    NURON_LIBNAME = NULL;
+}
+
 static long set_NURON_LIBNAME(const char *name)
-	{
-	free_NURON_LIBNAME();
-	return (((NURON_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0);
-	}
+{
+    free_NURON_LIBNAME();
+    return (((NURON_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0);
+}
+
 static const char *NURON_F1 = "nuron_mod_exp";
 
 /* The definitions for control commands specific to this engine */
-#define NURON_CMD_SO_PATH		ENGINE_CMD_BASE
+#  define NURON_CMD_SO_PATH               ENGINE_CMD_BASE
 static const ENGINE_CMD_DEFN nuron_cmd_defns[] = {
-	{NURON_CMD_SO_PATH,
-		"SO_PATH",
-		"Specifies the path to the 'nuronssl' shared library",
-		ENGINE_CMD_FLAG_STRING},
-	{0, NULL, NULL, 0}
-	};
-
-typedef int tfnModExp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,const BIGNUM *m);
+    {NURON_CMD_SO_PATH,
+     "SO_PATH",
+     "Specifies the path to the 'nuronssl' shared library",
+     ENGINE_CMD_FLAG_STRING},
+    {0, NULL, NULL, 0}
+};
+
+typedef int tfnModExp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+                      const BIGNUM *m);
 static tfnModExp *pfnModExp = NULL;
 
 static DSO *pvDSOHandle = NULL;
 
 static int nuron_destroy(ENGINE *e)
-	{
-	free_NURON_LIBNAME();
-	ERR_unload_NURON_strings();
-	return 1;
-	}
+{
+    free_NURON_LIBNAME();
+    ERR_unload_NURON_strings();
+    return 1;
+}
 
 static int nuron_init(ENGINE *e)
-	{
-	if(pvDSOHandle != NULL)
-		{
-		NURONerr(NURON_F_NURON_INIT,NURON_R_ALREADY_LOADED);
-		return 0;
-		}
-
-	pvDSOHandle = DSO_load(NULL, get_NURON_LIBNAME(), NULL,
-		DSO_FLAG_NAME_TRANSLATION_EXT_ONLY);
-	if(!pvDSOHandle)
-		{
-		NURONerr(NURON_F_NURON_INIT,NURON_R_DSO_NOT_FOUND);
-		return 0;
-		}
-
-	pfnModExp = (tfnModExp *)DSO_bind_func(pvDSOHandle, NURON_F1);
-	if(!pfnModExp)
-		{
-		NURONerr(NURON_F_NURON_INIT,NURON_R_DSO_FUNCTION_NOT_FOUND);
-		return 0;
-		}
-
-	return 1;
-	}
+{
+    if (pvDSOHandle != NULL) {
+        NURONerr(NURON_F_NURON_INIT, NURON_R_ALREADY_LOADED);
+        return 0;
+    }
+
+    pvDSOHandle = DSO_load(NULL, get_NURON_LIBNAME(), NULL,
+                           DSO_FLAG_NAME_TRANSLATION_EXT_ONLY);
+    if (!pvDSOHandle) {
+        NURONerr(NURON_F_NURON_INIT, NURON_R_DSO_NOT_FOUND);
+        return 0;
+    }
+
+    pfnModExp = (tfnModExp *) DSO_bind_func(pvDSOHandle, NURON_F1);
+    if (!pfnModExp) {
+        NURONerr(NURON_F_NURON_INIT, NURON_R_DSO_FUNCTION_NOT_FOUND);
+        return 0;
+    }
+
+    return 1;
+}
 
 static int nuron_finish(ENGINE *e)
-	{
-	free_NURON_LIBNAME();
-	if(pvDSOHandle == NULL)
-		{
-		NURONerr(NURON_F_NURON_FINISH,NURON_R_NOT_LOADED);
-		return 0;
-		}
-	if(!DSO_free(pvDSOHandle))
-		{
-		NURONerr(NURON_F_NURON_FINISH,NURON_R_DSO_FAILURE);
-		return 0;
-		}
-	pvDSOHandle=NULL;
-	pfnModExp=NULL;
-	return 1;
-	}
-
-static int nuron_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
-	{
-	int initialised = ((pvDSOHandle == NULL) ? 0 : 1);
-	switch(cmd)
-		{
-	case NURON_CMD_SO_PATH:
-		if(p == NULL)
-			{
-			NURONerr(NURON_F_NURON_CTRL,ERR_R_PASSED_NULL_PARAMETER);
-			return 0;
-			}
-		if(initialised)
-			{
-			NURONerr(NURON_F_NURON_CTRL,NURON_R_ALREADY_LOADED);
-			return 0;
-			}
-		return set_NURON_LIBNAME((const char *)p);
-	default:
-		break;
-		}
-	NURONerr(NURON_F_NURON_CTRL,NURON_R_CTRL_COMMAND_NOT_IMPLEMENTED);
-	return 0;
+{
+    free_NURON_LIBNAME();
+    if (pvDSOHandle == NULL) {
+        NURONerr(NURON_F_NURON_FINISH, NURON_R_NOT_LOADED);
+        return 0;
+    }
+    if (!DSO_free(pvDSOHandle)) {
+        NURONerr(NURON_F_NURON_FINISH, NURON_R_DSO_FAILURE);
+        return 0;
+    }
+    pvDSOHandle = NULL;
+    pfnModExp = NULL;
+    return 1;
 }
 
-static int nuron_mod_exp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,
-			 const BIGNUM *m,BN_CTX *ctx)
-	{
-	if(!pvDSOHandle)
-		{
-		NURONerr(NURON_F_NURON_MOD_EXP,NURON_R_NOT_LOADED);
-		return 0;
-		}
-	return pfnModExp(r,a,p,m);
-	}
+static int nuron_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
+{
+    int initialised = ((pvDSOHandle == NULL) ? 0 : 1);
+    switch (cmd) {
+    case NURON_CMD_SO_PATH:
+        if (p == NULL) {
+            NURONerr(NURON_F_NURON_CTRL, ERR_R_PASSED_NULL_PARAMETER);
+            return 0;
+        }
+        if (initialised) {
+            NURONerr(NURON_F_NURON_CTRL, NURON_R_ALREADY_LOADED);
+            return 0;
+        }
+        return set_NURON_LIBNAME((const char *)p);
+    default:
+        break;
+    }
+    NURONerr(NURON_F_NURON_CTRL, NURON_R_CTRL_COMMAND_NOT_IMPLEMENTED);
+    return 0;
+}
 
-#ifndef OPENSSL_NO_RSA
-static int nuron_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
-	{
-	return nuron_mod_exp(r0,I,rsa->d,rsa->n,ctx);
-	}
-#endif
+static int nuron_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+                         const BIGNUM *m, BN_CTX *ctx)
+{
+    if (!pvDSOHandle) {
+        NURONerr(NURON_F_NURON_MOD_EXP, NURON_R_NOT_LOADED);
+        return 0;
+    }
+    return pfnModExp(r, a, p, m);
+}
 
-#ifndef OPENSSL_NO_DSA
-/* This code was liberated and adapted from the commented-out code in
- * dsa_ossl.c. Because of the unoptimised form of the Atalla acceleration
- * (it doesn't have a CRT form for RSA), this function means that an
- * Atalla system running with a DSA server certificate can handshake
- * around 5 or 6 times faster/more than an equivalent system running with
- * RSA. Just check out the "signs" statistics from the RSA and DSA parts
- * of "openssl speed -engine atalla dsa1024 rsa1024". */
+#  ifndef OPENSSL_NO_RSA
+static int nuron_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
+                             BN_CTX *ctx)
+{
+    return nuron_mod_exp(r0, I, rsa->d, rsa->n, ctx);
+}
+#  endif
+
+#  ifndef OPENSSL_NO_DSA
+/*
+ * This code was liberated and adapted from the commented-out code in
+ * dsa_ossl.c. Because of the unoptimised form of the Atalla acceleration (it
+ * doesn't have a CRT form for RSA), this function means that an Atalla
+ * system running with a DSA server certificate can handshake around 5 or 6
+ * times faster/more than an equivalent system running with RSA. Just check
+ * out the "signs" statistics from the RSA and DSA parts of "openssl speed
+ * -engine atalla dsa1024 rsa1024".
+ */
 static int nuron_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
-			     BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
-			     BN_CTX *ctx, BN_MONT_CTX *in_mont)
-	{
-	BIGNUM t;
-	int to_return = 0;
- 
-	BN_init(&t);
-	/* let rr = a1 ^ p1 mod m */
-	if (!nuron_mod_exp(rr,a1,p1,m,ctx))
-		goto end;
-	/* let t = a2 ^ p2 mod m */
-	if (!nuron_mod_exp(&t,a2,p2,m,ctx))
-		goto end;
-	/* let rr = rr * t mod m */
-	if (!BN_mod_mul(rr,rr,&t,m,ctx))
-		goto end;
-	to_return = 1;
-end:
-	BN_free(&t);
-	return to_return;
-	}
-
+                             BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
+                             BN_CTX *ctx, BN_MONT_CTX *in_mont)
+{
+    BIGNUM t;
+    int to_return = 0;
+
+    BN_init(&t);
+    /* let rr = a1 ^ p1 mod m */
+    if (!nuron_mod_exp(rr, a1, p1, m, ctx))
+        goto end;
+    /* let t = a2 ^ p2 mod m */
+    if (!nuron_mod_exp(&t, a2, p2, m, ctx))
+        goto end;
+    /* let rr = rr * t mod m */
+    if (!BN_mod_mul(rr, rr, &t, m, ctx))
+        goto end;
+    to_return = 1;
+ end:
+    BN_free(&t);
+    return to_return;
+}
 
 static int nuron_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
-			     const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
-			     BN_MONT_CTX *m_ctx)
-	{
-	return nuron_mod_exp(r, a, p, m, ctx);
-	}
-#endif
+                             const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+                             BN_MONT_CTX *m_ctx)
+{
+    return nuron_mod_exp(r, a, p, m, ctx);
+}
+#  endif
 
 /* This function is aliased to mod_exp (with the mont stuff dropped). */
-#ifndef OPENSSL_NO_RSA
+#  ifndef OPENSSL_NO_RSA
 static int nuron_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
-			      const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
-	{
-	return nuron_mod_exp(r, a, p, m, ctx);
-	}
-#endif
+                              const BIGNUM *m, BN_CTX *ctx,
+                              BN_MONT_CTX *m_ctx)
+{
+    return nuron_mod_exp(r, a, p, m, ctx);
+}
+#  endif
 
-#ifndef OPENSSL_NO_DH
+#  ifndef OPENSSL_NO_DH
 /* This function is aliased to mod_exp (with the dh and mont dropped). */
 static int nuron_mod_exp_dh(const DH *dh, BIGNUM *r,
-		const BIGNUM *a, const BIGNUM *p,
-		const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
-	{
-	return nuron_mod_exp(r, a, p, m, ctx);
-	}
-#endif
-
-#ifndef OPENSSL_NO_RSA
-static RSA_METHOD nuron_rsa =
-	{
-	"Nuron RSA method",
-	NULL,
-	NULL,
-	NULL,
-	NULL,
-	nuron_rsa_mod_exp,
-	nuron_mod_exp_mont,
-	NULL,
-	NULL,
-	0,
-	NULL,
-	NULL,
-	NULL,
-	NULL
-	};
-#endif
-
-#ifndef OPENSSL_NO_DSA
-static DSA_METHOD nuron_dsa =
-	{
-	"Nuron DSA method",
-	NULL, /* dsa_do_sign */
-	NULL, /* dsa_sign_setup */
-	NULL, /* dsa_do_verify */
-	nuron_dsa_mod_exp, /* dsa_mod_exp */
-	nuron_mod_exp_dsa, /* bn_mod_exp */
-	NULL, /* init */
-	NULL, /* finish */
-	0, /* flags */
-	NULL, /* app_data */
-	NULL, /* dsa_paramgen */
-	NULL /* dsa_keygen */
-	};
-#endif
-
-#ifndef OPENSSL_NO_DH
-static DH_METHOD nuron_dh =
-	{
-	"Nuron DH method",
-	NULL,
-	NULL,
-	nuron_mod_exp_dh,
-	NULL,
-	NULL,
-	0,
-	NULL,
-	NULL
-	};
-#endif
+                            const BIGNUM *a, const BIGNUM *p,
+                            const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+    return nuron_mod_exp(r, a, p, m, ctx);
+}
+#  endif
+
+#  ifndef OPENSSL_NO_RSA
+static RSA_METHOD nuron_rsa = {
+    "Nuron RSA method",
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    nuron_rsa_mod_exp,
+    nuron_mod_exp_mont,
+    NULL,
+    NULL,
+    0,
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+#  endif
+
+#  ifndef OPENSSL_NO_DSA
+static DSA_METHOD nuron_dsa = {
+    "Nuron DSA method",
+    NULL,                       /* dsa_do_sign */
+    NULL,                       /* dsa_sign_setup */
+    NULL,                       /* dsa_do_verify */
+    nuron_dsa_mod_exp,          /* dsa_mod_exp */
+    nuron_mod_exp_dsa,          /* bn_mod_exp */
+    NULL,                       /* init */
+    NULL,                       /* finish */
+    0,                          /* flags */
+    NULL,                       /* app_data */
+    NULL,                       /* dsa_paramgen */
+    NULL                        /* dsa_keygen */
+};
+#  endif
+
+#  ifndef OPENSSL_NO_DH
+static DH_METHOD nuron_dh = {
+    "Nuron DH method",
+    NULL,
+    NULL,
+    nuron_mod_exp_dh,
+    NULL,
+    NULL,
+    0,
+    NULL,
+    NULL
+};
+#  endif
 
 /* Constants used when creating the ENGINE */
 static const char *engine_nuron_id = "nuron";
 static const char *engine_nuron_name = "Nuron hardware engine support";
 
-/* This internal function is used by ENGINE_nuron() and possibly by the
- * "dynamic" ENGINE support too */
+/*
+ * This internal function is used by ENGINE_nuron() and possibly by the
+ * "dynamic" ENGINE support too
+ */
 static int bind_helper(ENGINE *e)
-	{
-#ifndef OPENSSL_NO_RSA
-	const RSA_METHOD *meth1;
-#endif
-#ifndef OPENSSL_NO_DSA
-	const DSA_METHOD *meth2;
-#endif
-#ifndef OPENSSL_NO_DH
-	const DH_METHOD *meth3;
-#endif
-	if(!ENGINE_set_id(e, engine_nuron_id) ||
-			!ENGINE_set_name(e, engine_nuron_name) ||
-#ifndef OPENSSL_NO_RSA
-			!ENGINE_set_RSA(e, &nuron_rsa) ||
-#endif
-#ifndef OPENSSL_NO_DSA
-			!ENGINE_set_DSA(e, &nuron_dsa) ||
-#endif
-#ifndef OPENSSL_NO_DH
-			!ENGINE_set_DH(e, &nuron_dh) ||
-#endif
-			!ENGINE_set_destroy_function(e, nuron_destroy) ||
-			!ENGINE_set_init_function(e, nuron_init) ||
-			!ENGINE_set_finish_function(e, nuron_finish) ||
-			!ENGINE_set_ctrl_function(e, nuron_ctrl) ||
-			!ENGINE_set_cmd_defns(e, nuron_cmd_defns))
-		return 0;
-
-#ifndef OPENSSL_NO_RSA
-	/* We know that the "PKCS1_SSLeay()" functions hook properly
-	 * to the nuron-specific mod_exp and mod_exp_crt so we use
-	 * those functions. NB: We don't use ENGINE_openssl() or
-	 * anything "more generic" because something like the RSAref
-	 * code may not hook properly, and if you own one of these
-	 * cards then you have the right to do RSA operations on it
-	 * anyway! */ 
-	meth1=RSA_PKCS1_SSLeay();
-	nuron_rsa.rsa_pub_enc=meth1->rsa_pub_enc;
-	nuron_rsa.rsa_pub_dec=meth1->rsa_pub_dec;
-	nuron_rsa.rsa_priv_enc=meth1->rsa_priv_enc;
-	nuron_rsa.rsa_priv_dec=meth1->rsa_priv_dec;
-#endif
-
-#ifndef OPENSSL_NO_DSA
-	/* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
-	 * bits. */
-	meth2=DSA_OpenSSL();
-	nuron_dsa.dsa_do_sign=meth2->dsa_do_sign;
-	nuron_dsa.dsa_sign_setup=meth2->dsa_sign_setup;
-	nuron_dsa.dsa_do_verify=meth2->dsa_do_verify;
-#endif
-
-#ifndef OPENSSL_NO_DH
-	/* Much the same for Diffie-Hellman */
-	meth3=DH_OpenSSL();
-	nuron_dh.generate_key=meth3->generate_key;
-	nuron_dh.compute_key=meth3->compute_key;
-#endif
-
-	/* Ensure the nuron error handling is set up */
-	ERR_load_NURON_strings();
-	return 1;
-	}
+{
+#  ifndef OPENSSL_NO_RSA
+    const RSA_METHOD *meth1;
+#  endif
+#  ifndef OPENSSL_NO_DSA
+    const DSA_METHOD *meth2;
+#  endif
+#  ifndef OPENSSL_NO_DH
+    const DH_METHOD *meth3;
+#  endif
+    if (!ENGINE_set_id(e, engine_nuron_id) ||
+        !ENGINE_set_name(e, engine_nuron_name) ||
+#  ifndef OPENSSL_NO_RSA
+        !ENGINE_set_RSA(e, &nuron_rsa) ||
+#  endif
+#  ifndef OPENSSL_NO_DSA
+        !ENGINE_set_DSA(e, &nuron_dsa) ||
+#  endif
+#  ifndef OPENSSL_NO_DH
+        !ENGINE_set_DH(e, &nuron_dh) ||
+#  endif
+        !ENGINE_set_destroy_function(e, nuron_destroy) ||
+        !ENGINE_set_init_function(e, nuron_init) ||
+        !ENGINE_set_finish_function(e, nuron_finish) ||
+        !ENGINE_set_ctrl_function(e, nuron_ctrl) ||
+        !ENGINE_set_cmd_defns(e, nuron_cmd_defns))
+        return 0;
+
+#  ifndef OPENSSL_NO_RSA
+    /*
+     * We know that the "PKCS1_SSLeay()" functions hook properly to the
+     * nuron-specific mod_exp and mod_exp_crt so we use those functions. NB:
+     * We don't use ENGINE_openssl() or anything "more generic" because
+     * something like the RSAref code may not hook properly, and if you own
+     * one of these cards then you have the right to do RSA operations on it
+     * anyway!
+     */
+    meth1 = RSA_PKCS1_SSLeay();
+    nuron_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
+    nuron_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
+    nuron_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
+    nuron_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
+#  endif
+
+#  ifndef OPENSSL_NO_DSA
+    /*
+     * Use the DSA_OpenSSL() method and just hook the mod_exp-ish bits.
+     */
+    meth2 = DSA_OpenSSL();
+    nuron_dsa.dsa_do_sign = meth2->dsa_do_sign;
+    nuron_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
+    nuron_dsa.dsa_do_verify = meth2->dsa_do_verify;
+#  endif
+
+#  ifndef OPENSSL_NO_DH
+    /* Much the same for Diffie-Hellman */
+    meth3 = DH_OpenSSL();
+    nuron_dh.generate_key = meth3->generate_key;
+    nuron_dh.compute_key = meth3->compute_key;
+#  endif
+
+    /* Ensure the nuron error handling is set up */
+    ERR_load_NURON_strings();
+    return 1;
+}
 
-#ifdef OPENSSL_NO_DYNAMIC_ENGINE
+#  ifdef OPENSSL_NO_DYNAMIC_ENGINE
 static ENGINE *engine_nuron(void)
-	{
-	ENGINE *ret = ENGINE_new();
-	if(!ret)
-		return NULL;
-	if(!bind_helper(ret))
-		{
-		ENGINE_free(ret);
-		return NULL;
-		}
-	return ret;
-	}
+{
+    ENGINE *ret = ENGINE_new();
+    if (!ret)
+        return NULL;
+    if (!bind_helper(ret)) {
+        ENGINE_free(ret);
+        return NULL;
+    }
+    return ret;
+}
 
 void ENGINE_load_nuron(void)
-	{
-	/* Copied from eng_[openssl|dyn].c */
-	ENGINE *toadd = engine_nuron();
-	if(!toadd) return;
-	ENGINE_add(toadd);
-	ENGINE_free(toadd);
-	ERR_clear_error();
-	}
-#endif
+{
+    /* Copied from eng_[openssl|dyn].c */
+    ENGINE *toadd = engine_nuron();
+    if (!toadd)
+        return;
+    ENGINE_add(toadd);
+    ENGINE_free(toadd);
+    ERR_clear_error();
+}
+#  endif
 
-/* This stuff is needed if this ENGINE is being compiled into a self-contained
- * shared-library. */	   
-#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+/*
+ * This stuff is needed if this ENGINE is being compiled into a
+ * self-contained shared-library.
+ */
+#  ifndef OPENSSL_NO_DYNAMIC_ENGINE
 static int bind_fn(ENGINE *e, const char *id)
-	{
-	if(id && (strcmp(id, engine_nuron_id) != 0))
-		return 0;
-	if(!bind_helper(e))
-		return 0;
-	return 1;
-	}       
-IMPLEMENT_DYNAMIC_CHECK_FN()
-IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
-#endif /* OPENSSL_NO_DYNAMIC_ENGINE */
+{
+    if (id && (strcmp(id, engine_nuron_id) != 0))
+        return 0;
+    if (!bind_helper(e))
+        return 0;
+    return 1;
+}
 
-#endif /* !OPENSSL_NO_HW_NURON */
-#endif /* !OPENSSL_NO_HW */
+IMPLEMENT_DYNAMIC_CHECK_FN()
+    IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
+#  endif                        /* OPENSSL_NO_DYNAMIC_ENGINE */
+# endif                         /* !OPENSSL_NO_HW_NURON */
+#endif                          /* !OPENSSL_NO_HW */