From: tb <tb@openbsd.org>
Date: Wed, 4 May 2022 18:56:34 +0000 (+0000)
Subject: KNF according to knfmt(1)
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=e3343a650a7c958842a276eda92f854f0b85ec68;p=openbsd

KNF according to knfmt(1)
---

diff --git a/lib/libcrypto/kdf/hkdf_evp.c b/lib/libcrypto/kdf/hkdf_evp.c
index 033718c6263..85ed2d5e42d 100644
--- a/lib/libcrypto/kdf/hkdf_evp.c
+++ b/lib/libcrypto/kdf/hkdf_evp.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hkdf_evp.c,v 1.4 2022/05/04 18:49:50 tb Exp $ */
+/*	$OpenBSD: hkdf_evp.c,v 1.5 2022/05/04 18:56:34 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 2016-2018 The OpenSSL Project.  All rights reserved.
  *
@@ -58,335 +58,347 @@
 #define HKDF_MAXBUF 1024
 
 static unsigned char *HKDF(const EVP_MD *evp_md,
-                           const unsigned char *salt, size_t salt_len,
-                           const unsigned char *key, size_t key_len,
-                           const unsigned char *info, size_t info_len,
-                           unsigned char *okm, size_t okm_len);
+    const unsigned char *salt, size_t salt_len,
+    const unsigned char *key, size_t key_len,
+    const unsigned char *info, size_t info_len,
+    unsigned char *okm, size_t okm_len);
 
 static unsigned char *HKDF_Extract(const EVP_MD *evp_md,
-                                   const unsigned char *salt, size_t salt_len,
-                                   const unsigned char *key, size_t key_len,
-                                   unsigned char *prk, size_t *prk_len);
+    const unsigned char *salt, size_t salt_len,
+    const unsigned char *key, size_t key_len,
+    unsigned char *prk, size_t *prk_len);
 
 static unsigned char *HKDF_Expand(const EVP_MD *evp_md,
-                                  const unsigned char *prk, size_t prk_len,
-                                  const unsigned char *info, size_t info_len,
-                                  unsigned char *okm, size_t okm_len);
+    const unsigned char *prk, size_t prk_len,
+    const unsigned char *info, size_t info_len,
+    unsigned char *okm, size_t okm_len);
 
 typedef struct {
-    int mode;
-    const EVP_MD *md;
-    unsigned char *salt;
-    size_t salt_len;
-    unsigned char *key;
-    size_t key_len;
-    unsigned char info[HKDF_MAXBUF];
-    size_t info_len;
+	int mode;
+	const EVP_MD *md;
+	unsigned char *salt;
+	size_t salt_len;
+	unsigned char *key;
+	size_t key_len;
+	unsigned char info[HKDF_MAXBUF];
+	size_t info_len;
 } HKDF_PKEY_CTX;
 
-static int pkey_hkdf_init(EVP_PKEY_CTX *ctx)
+static int
+pkey_hkdf_init(EVP_PKEY_CTX *ctx)
 {
-    HKDF_PKEY_CTX *kctx;
+	HKDF_PKEY_CTX *kctx;
 
-    if ((kctx = OPENSSL_zalloc(sizeof(*kctx))) == NULL) {
-        KDFerr(KDF_F_PKEY_HKDF_INIT, ERR_R_MALLOC_FAILURE);
-        return 0;
-    }
+	if ((kctx = OPENSSL_zalloc(sizeof(*kctx))) == NULL) {
+		KDFerr(KDF_F_PKEY_HKDF_INIT, ERR_R_MALLOC_FAILURE);
+		return 0;
+	}
 
-    ctx->data = kctx;
+	ctx->data = kctx;
 
-    return 1;
+	return 1;
 }
 
-static void pkey_hkdf_cleanup(EVP_PKEY_CTX *ctx)
+static void
+pkey_hkdf_cleanup(EVP_PKEY_CTX *ctx)
 {
-    HKDF_PKEY_CTX *kctx = ctx->data;
-    OPENSSL_clear_free(kctx->salt, kctx->salt_len);
-    OPENSSL_clear_free(kctx->key, kctx->key_len);
-    OPENSSL_cleanse(kctx->info, kctx->info_len);
-    OPENSSL_free(kctx);
+	HKDF_PKEY_CTX *kctx = ctx->data;
+	OPENSSL_clear_free(kctx -> salt, kctx -> salt_len);
+	OPENSSL_clear_free(kctx -> key, kctx -> key_len);
+	OPENSSL_cleanse(kctx -> info, kctx -> info_len);
+	OPENSSL_free(kctx);
 }
 
-static int pkey_hkdf_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
+static int
+pkey_hkdf_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
 {
-    HKDF_PKEY_CTX *kctx = ctx->data;
+	HKDF_PKEY_CTX *kctx = ctx->data;
 
-    switch (type) {
-    case EVP_PKEY_CTRL_HKDF_MD:
-        if (p2 == NULL)
-            return 0;
+	switch (type) {
+	case EVP_PKEY_CTRL_HKDF_MD:
+		if (p2 == NULL)
+			return 0;
 
-        kctx->md = p2;
-        return 1;
+		kctx->md = p2;
+		return 1;
 
-    case EVP_PKEY_CTRL_HKDF_MODE:
-        kctx->mode = p1;
-        return 1;
+	case EVP_PKEY_CTRL_HKDF_MODE:
+		kctx->mode = p1;
+		return 1;
 
-    case EVP_PKEY_CTRL_HKDF_SALT:
-        if (p1 == 0 || p2 == NULL)
-            return 1;
+	case EVP_PKEY_CTRL_HKDF_SALT:
+		if (p1 == 0 || p2 == NULL)
+			return 1;
 
-        if (p1 < 0)
-            return 0;
+		if (p1 < 0)
+			return 0;
 
-        if (kctx->salt != NULL)
-            OPENSSL_clear_free(kctx->salt, kctx->salt_len);
+		if (kctx->salt != NULL)
+			OPENSSL_clear_free(kctx->salt, kctx->salt_len);
 
-        kctx->salt = OPENSSL_memdup(p2, p1);
-        if (kctx->salt == NULL)
-            return 0;
+		kctx->salt = OPENSSL_memdup(p2, p1);
+		if (kctx->salt == NULL)
+			return 0;
 
-        kctx->salt_len = p1;
-        return 1;
+		kctx->salt_len = p1;
+		return 1;
 
-    case EVP_PKEY_CTRL_HKDF_KEY:
-        if (p1 < 0)
-            return 0;
+	case EVP_PKEY_CTRL_HKDF_KEY:
+		if (p1 < 0)
+			return 0;
 
-        if (kctx->key != NULL)
-            OPENSSL_clear_free(kctx->key, kctx->key_len);
+		if (kctx->key != NULL)
+			OPENSSL_clear_free(kctx->key, kctx->key_len);
 
-        kctx->key = OPENSSL_memdup(p2, p1);
-        if (kctx->key == NULL)
-            return 0;
+		kctx->key = OPENSSL_memdup(p2, p1);
+		if (kctx->key == NULL)
+			return 0;
 
-        kctx->key_len  = p1;
-        return 1;
+		kctx->key_len = p1;
+		return 1;
 
-    case EVP_PKEY_CTRL_HKDF_INFO:
-        if (p1 == 0 || p2 == NULL)
-            return 1;
+	case EVP_PKEY_CTRL_HKDF_INFO:
+		if (p1 == 0 || p2 == NULL)
+			return 1;
 
-        if (p1 < 0 || p1 > (int)(HKDF_MAXBUF - kctx->info_len))
-            return 0;
+		if (p1 < 0 || p1 > (int)(HKDF_MAXBUF - kctx->info_len))
+			return 0;
 
-        memcpy(kctx->info + kctx->info_len, p2, p1);
-        kctx->info_len += p1;
-        return 1;
+		memcpy(kctx->info + kctx->info_len, p2, p1);
+		kctx->info_len += p1;
+		return 1;
 
-    default:
-        return -2;
-
-    }
+	default:
+		return -2;
+	}
 }
 
-static int pkey_hkdf_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
-                              const char *value)
+static int
+pkey_hkdf_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
+    const char *value)
 {
-    if (strcmp(type, "mode") == 0) {
-        int mode;
+	if (strcmp(type, "mode") == 0) {
+		int mode;
 
-        if (strcmp(value, "EXTRACT_AND_EXPAND") == 0)
-            mode = EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND;
-        else if (strcmp(value, "EXTRACT_ONLY") == 0)
-            mode = EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY;
-        else if (strcmp(value, "EXPAND_ONLY") == 0)
-            mode = EVP_PKEY_HKDEF_MODE_EXPAND_ONLY;
-        else
-            return 0;
+		if (strcmp(value, "EXTRACT_AND_EXPAND") == 0)
+			mode = EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND;
+		else if (strcmp(value, "EXTRACT_ONLY") == 0)
+			mode = EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY;
+		else if (strcmp(value, "EXPAND_ONLY") == 0)
+			mode = EVP_PKEY_HKDEF_MODE_EXPAND_ONLY;
+		else
+			return 0;
 
-        return EVP_PKEY_CTX_hkdf_mode(ctx, mode);
-    }
+		return EVP_PKEY_CTX_hkdf_mode(ctx, mode);
+	}
 
-    if (strcmp(type, "md") == 0)
-        return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_DERIVE,
-                               EVP_PKEY_CTRL_HKDF_MD, value);
+	if (strcmp(type, "md") == 0)
+		return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_DERIVE,
+		    EVP_PKEY_CTRL_HKDF_MD, value);
 
-    if (strcmp(type, "salt") == 0)
-        return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_SALT, value);
+	if (strcmp(type, "salt") == 0)
+		return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_SALT,
+		    value);
 
-    if (strcmp(type, "hexsalt") == 0)
-        return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_SALT, value);
+	if (strcmp(type, "hexsalt") == 0)
+		return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_SALT,
+		    value);
 
-    if (strcmp(type, "key") == 0)
-        return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_KEY, value);
+	if (strcmp(type, "key") == 0)
+		return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_KEY, value);
 
-    if (strcmp(type, "hexkey") == 0)
-        return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_KEY, value);
+	if (strcmp(type, "hexkey") == 0)
+		return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_KEY, value);
 
-    if (strcmp(type, "info") == 0)
-        return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_INFO, value);
+	if (strcmp(type, "info") == 0)
+		return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_INFO,
+		    value);
 
-    if (strcmp(type, "hexinfo") == 0)
-        return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_INFO, value);
+	if (strcmp(type, "hexinfo") == 0)
+		return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_INFO,
+		    value);
 
-    KDFerr(KDF_F_PKEY_HKDF_CTRL_STR, KDF_R_UNKNOWN_PARAMETER_TYPE);
-    return -2;
+	KDFerr(KDF_F_PKEY_HKDF_CTRL_STR, KDF_R_UNKNOWN_PARAMETER_TYPE);
+	return -2;
 }
 
-static int pkey_hkdf_derive_init(EVP_PKEY_CTX *ctx)
+static int
+pkey_hkdf_derive_init(EVP_PKEY_CTX *ctx)
 {
-    HKDF_PKEY_CTX *kctx = ctx->data;
+	HKDF_PKEY_CTX *kctx = ctx->data;
 
-    OPENSSL_clear_free(kctx->key, kctx->key_len);
-    OPENSSL_clear_free(kctx->salt, kctx->salt_len);
-    OPENSSL_cleanse(kctx->info, kctx->info_len);
-    memset(kctx, 0, sizeof(*kctx));
+	OPENSSL_clear_free(kctx->key, kctx->key_len);
+	OPENSSL_clear_free(kctx->salt, kctx->salt_len);
+	OPENSSL_cleanse(kctx->info, kctx->info_len);
+	memset(kctx, 0, sizeof(*kctx));
 
-    return 1;
+	return 1;
 }
 
-static int pkey_hkdf_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
-                            size_t *keylen)
+static int
+pkey_hkdf_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
+    size_t *keylen)
 {
-    HKDF_PKEY_CTX *kctx = ctx->data;
-
-    if (kctx->md == NULL) {
-        KDFerr(KDF_F_PKEY_HKDF_DERIVE, KDF_R_MISSING_MESSAGE_DIGEST);
-        return 0;
-    }
-    if (kctx->key == NULL) {
-        KDFerr(KDF_F_PKEY_HKDF_DERIVE, KDF_R_MISSING_KEY);
-        return 0;
-    }
-
-    switch (kctx->mode) {
-    case EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND:
-        return HKDF(kctx->md, kctx->salt, kctx->salt_len, kctx->key,
-                    kctx->key_len, kctx->info, kctx->info_len, key,
-                    *keylen) != NULL;
-
-    case EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY:
-        if (key == NULL) {
-            *keylen = EVP_MD_size(kctx->md);
-            return 1;
-        }
-        return HKDF_Extract(kctx->md, kctx->salt, kctx->salt_len, kctx->key,
-                            kctx->key_len, key, keylen) != NULL;
-
-    case EVP_PKEY_HKDEF_MODE_EXPAND_ONLY:
-        return HKDF_Expand(kctx->md, kctx->key, kctx->key_len, kctx->info,
-                           kctx->info_len, key, *keylen) != NULL;
-
-    default:
-        return 0;
-    }
+	HKDF_PKEY_CTX *kctx = ctx->data;
+
+	if (kctx->md == NULL) {
+		KDFerr(KDF_F_PKEY_HKDF_DERIVE, KDF_R_MISSING_MESSAGE_DIGEST);
+		return 0;
+	}
+	if (kctx->key == NULL) {
+		KDFerr(KDF_F_PKEY_HKDF_DERIVE, KDF_R_MISSING_KEY);
+		return 0;
+	}
+
+	switch (kctx->mode) {
+	case EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND:
+		return HKDF(kctx->md, kctx->salt, kctx->salt_len, kctx->key,
+		    kctx->key_len, kctx->info, kctx->info_len, key,
+		    *keylen) != NULL;
+
+	case EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY:
+		if (key == NULL) {
+			*keylen = EVP_MD_size(kctx->md);
+			return 1;
+		}
+		return HKDF_Extract(kctx->md, kctx->salt, kctx->salt_len,
+		    kctx->key, kctx->key_len, key, keylen) != NULL;
+
+	case EVP_PKEY_HKDEF_MODE_EXPAND_ONLY:
+		return HKDF_Expand(kctx->md, kctx->key, kctx->key_len,
+		    kctx->info, kctx->info_len, key, *keylen) != NULL;
+
+	default:
+		return 0;
+	}
 }
 
 const EVP_PKEY_METHOD hkdf_pkey_meth = {
-    EVP_PKEY_HKDF,
-    0,
-    pkey_hkdf_init,
-    0,
-    pkey_hkdf_cleanup,
+	EVP_PKEY_HKDF,
+	0,
+	pkey_hkdf_init,
+	0,
+	pkey_hkdf_cleanup,
 
-    0, 0,
-    0, 0,
+	0, 0,
+	0, 0,
 
-    0,
-    0,
+	0,
+	0,
 
-    0,
-    0,
+	0,
+	0,
 
-    0, 0,
+	0, 0,
 
-    0, 0, 0, 0,
+	0, 0, 0, 0,
 
-    0, 0,
+	0, 0,
 
-    0, 0,
+	0, 0,
 
-    pkey_hkdf_derive_init,
-    pkey_hkdf_derive,
-    pkey_hkdf_ctrl,
-    pkey_hkdf_ctrl_str
+	pkey_hkdf_derive_init,
+	pkey_hkdf_derive,
+	pkey_hkdf_ctrl,
+	pkey_hkdf_ctrl_str
 };
 
-static unsigned char *HKDF(const EVP_MD *evp_md,
-                           const unsigned char *salt, size_t salt_len,
-                           const unsigned char *key, size_t key_len,
-                           const unsigned char *info, size_t info_len,
-                           unsigned char *okm, size_t okm_len)
+static unsigned char *
+HKDF(const EVP_MD *evp_md,
+    const unsigned char *salt, size_t salt_len,
+    const unsigned char *key, size_t key_len,
+    const unsigned char *info, size_t info_len,
+    unsigned char *okm, size_t okm_len)
 {
-    unsigned char prk[EVP_MAX_MD_SIZE];
-    unsigned char *ret;
-    size_t prk_len;
+	unsigned char prk[EVP_MAX_MD_SIZE];
+	unsigned char *ret;
+	size_t prk_len;
 
-    if (!HKDF_Extract(evp_md, salt, salt_len, key, key_len, prk, &prk_len))
-        return NULL;
+	if (!HKDF_Extract(evp_md, salt, salt_len, key, key_len, prk, &prk_len))
+		return NULL;
 
-    ret = HKDF_Expand(evp_md, prk, prk_len, info, info_len, okm, okm_len);
-    OPENSSL_cleanse(prk, sizeof(prk));
+	ret = HKDF_Expand(evp_md, prk, prk_len, info, info_len, okm, okm_len);
+	OPENSSL_cleanse(prk, sizeof(prk));
 
-    return ret;
+	return ret;
 }
 
-static unsigned char *HKDF_Extract(const EVP_MD *evp_md,
-                                   const unsigned char *salt, size_t salt_len,
-                                   const unsigned char *key, size_t key_len,
-                                   unsigned char *prk, size_t *prk_len)
+static unsigned char *
+HKDF_Extract(const EVP_MD *evp_md,
+    const unsigned char *salt, size_t salt_len,
+    const unsigned char *key, size_t key_len,
+    unsigned char *prk, size_t *prk_len)
 {
-    unsigned int tmp_len;
+	unsigned int tmp_len;
 
-    if (!HMAC(evp_md, salt, salt_len, key, key_len, prk, &tmp_len))
-        return NULL;
+	if (!HMAC(evp_md, salt, salt_len, key, key_len, prk, &tmp_len))
+		return NULL;
 
-    *prk_len = tmp_len;
-    return prk;
+	*prk_len = tmp_len;
+	return prk;
 }
 
-static unsigned char *HKDF_Expand(const EVP_MD *evp_md,
-                                  const unsigned char *prk, size_t prk_len,
-                                  const unsigned char *info, size_t info_len,
-                                  unsigned char *okm, size_t okm_len)
+static unsigned char *
+HKDF_Expand(const EVP_MD *evp_md,
+    const unsigned char *prk, size_t prk_len,
+    const unsigned char *info, size_t info_len,
+    unsigned char *okm, size_t okm_len)
 {
-    HMAC_CTX *hmac;
-    unsigned char *ret = NULL;
+	HMAC_CTX *hmac;
+	unsigned char *ret = NULL;
 
-    unsigned int i;
+	unsigned int i;
 
-    unsigned char prev[EVP_MAX_MD_SIZE];
+	unsigned char prev[EVP_MAX_MD_SIZE];
 
-    size_t done_len = 0, dig_len = EVP_MD_size(evp_md);
+	size_t done_len = 0, dig_len = EVP_MD_size(evp_md);
 
-    size_t n = okm_len / dig_len;
-    if (okm_len % dig_len)
-        n++;
+	size_t n = okm_len / dig_len;
+	if (okm_len % dig_len)
+		n++;
 
-    if (n > 255 || okm == NULL)
-        return NULL;
+	if (n > 255 || okm == NULL)
+		return NULL;
 
-    if ((hmac = HMAC_CTX_new()) == NULL)
-        return NULL;
+	if ((hmac = HMAC_CTX_new()) == NULL)
+		return NULL;
 
-    if (!HMAC_Init_ex(hmac, prk, prk_len, evp_md, NULL))
-        goto err;
+	if (!HMAC_Init_ex(hmac, prk, prk_len, evp_md, NULL))
+		goto err;
 
-    for (i = 1; i <= n; i++) {
-        size_t copy_len;
-        const unsigned char ctr = i;
+	for (i = 1; i <= n; i++) {
+		size_t copy_len;
+		const unsigned char ctr = i;
 
-        if (i > 1) {
-            if (!HMAC_Init_ex(hmac, NULL, 0, NULL, NULL))
-                goto err;
+		if (i > 1) {
+			if (!HMAC_Init_ex(hmac, NULL, 0, NULL, NULL))
+				goto err;
 
-            if (!HMAC_Update(hmac, prev, dig_len))
-                goto err;
-        }
+			if (!HMAC_Update(hmac, prev, dig_len))
+				goto err;
+		}
 
-        if (!HMAC_Update(hmac, info, info_len))
-            goto err;
+		if (!HMAC_Update(hmac, info, info_len))
+			goto err;
 
-        if (!HMAC_Update(hmac, &ctr, 1))
-            goto err;
+		if (!HMAC_Update(hmac, &ctr, 1))
+			goto err;
 
-        if (!HMAC_Final(hmac, prev, NULL))
-            goto err;
+		if (!HMAC_Final(hmac, prev, NULL))
+			goto err;
 
-        copy_len = (done_len + dig_len > okm_len) ?
-                       okm_len - done_len :
-                       dig_len;
+		copy_len = (done_len + dig_len > okm_len) ?
+		    okm_len - done_len :
+		    dig_len;
 
-        memcpy(okm + done_len, prev, copy_len);
+		memcpy(okm + done_len, prev, copy_len);
 
-        done_len += copy_len;
-    }
-    ret = okm;
+		done_len += copy_len;
+	}
+	ret = okm;
 
  err:
-    OPENSSL_cleanse(prev, sizeof(prev));
-    HMAC_CTX_free(hmac);
-    return ret;
+	OPENSSL_cleanse(prev, sizeof(prev));
+	HMAC_CTX_free(hmac);
+	return ret;
 }
diff --git a/lib/libcrypto/kdf/kdf_err.c b/lib/libcrypto/kdf/kdf_err.c
index a3f0f92581d..f3e3fb83396 100644
--- a/lib/libcrypto/kdf/kdf_err.c
+++ b/lib/libcrypto/kdf/kdf_err.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kdf_err.c,v 1.4 2022/05/04 18:49:50 tb Exp $ */
+/*	$OpenBSD: kdf_err.c,v 1.5 2022/05/04 18:56:34 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 1999-2018 The OpenSSL Project.  All rights reserved.
  *
@@ -64,54 +64,55 @@
 #ifndef OPENSSL_NO_ERR
 
 static const ERR_STRING_DATA KDF_str_functs[] = {
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_CTRL_STR, 0), "pkey_hkdf_ctrl_str"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_DERIVE, 0), "pkey_hkdf_derive"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_INIT, 0), "pkey_hkdf_init"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_STR, 0),
-     "pkey_scrypt_ctrl_str"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_UINT64, 0),
-     "pkey_scrypt_ctrl_uint64"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_DERIVE, 0), "pkey_scrypt_derive"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_INIT, 0), "pkey_scrypt_init"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_SET_MEMBUF, 0),
-     "pkey_scrypt_set_membuf"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_CTRL_STR, 0),
-     "pkey_tls1_prf_ctrl_str"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_DERIVE, 0),
-     "pkey_tls1_prf_derive"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_INIT, 0), "pkey_tls1_prf_init"},
-    {ERR_PACK(ERR_LIB_KDF, KDF_F_TLS1_PRF_ALG, 0), "tls1_prf_alg"},
-    {0, NULL}
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_CTRL_STR, 0), "pkey_hkdf_ctrl_str"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_DERIVE, 0), "pkey_hkdf_derive"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_INIT, 0), "pkey_hkdf_init"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_STR, 0),
+	 "pkey_scrypt_ctrl_str"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_UINT64, 0),
+	 "pkey_scrypt_ctrl_uint64"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_DERIVE, 0), "pkey_scrypt_derive"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_INIT, 0), "pkey_scrypt_init"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_SET_MEMBUF, 0),
+	 "pkey_scrypt_set_membuf"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_CTRL_STR, 0),
+	 "pkey_tls1_prf_ctrl_str"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_DERIVE, 0),
+	 "pkey_tls1_prf_derive"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_INIT, 0), "pkey_tls1_prf_init"},
+	{ERR_PACK(ERR_LIB_KDF, KDF_F_TLS1_PRF_ALG, 0), "tls1_prf_alg"},
+	{0, NULL}
 };
 
 static const ERR_STRING_DATA KDF_str_reasons[] = {
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_INVALID_DIGEST), "invalid digest"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_ITERATION_COUNT),
-    "missing iteration count"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_KEY), "missing key"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_MESSAGE_DIGEST),
-    "missing message digest"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PARAMETER), "missing parameter"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PASS), "missing pass"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SALT), "missing salt"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SECRET), "missing secret"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SEED), "missing seed"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_UNKNOWN_PARAMETER_TYPE),
-    "unknown parameter type"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_ERROR), "value error"},
-    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_MISSING), "value missing"},
-    {0, NULL}
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_INVALID_DIGEST), "invalid digest"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_ITERATION_COUNT),
+	 "missing iteration count"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_KEY), "missing key"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_MESSAGE_DIGEST),
+	 "missing message digest"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PARAMETER), "missing parameter"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PASS), "missing pass"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SALT), "missing salt"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SECRET), "missing secret"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SEED), "missing seed"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_UNKNOWN_PARAMETER_TYPE),
+	 "unknown parameter type"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_ERROR), "value error"},
+	{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_MISSING), "value missing"},
+	{0, NULL}
 };
 
 #endif
 
-int ERR_load_KDF_strings(void)
+int
+ERR_load_KDF_strings(void)
 {
 #ifndef OPENSSL_NO_ERR
-    if (ERR_func_error_string(KDF_str_functs[0].error) == NULL) {
-        ERR_load_strings_const(KDF_str_functs);
-        ERR_load_strings_const(KDF_str_reasons);
-    }
+	if (ERR_func_error_string(KDF_str_functs[0].error) == NULL) {
+		ERR_load_strings_const(KDF_str_functs);
+		ERR_load_strings_const(KDF_str_reasons);
+	}
 #endif
-    return 1;
+	return 1;
 }