mbedtls: Update to upstream version 2.28.3

Rediff patch from PR 1453, lstrlenW is no longer used upstream so
that part of the patch was dropped.

(cherry picked from commit 1fde2092d0b6e840f026abaf438c4e591138125a)

1 files changed, 247 insertions, 240 deletions

diff --git a/thirdparty/mbedtls/library/sha1.c b/thirdparty/mbedtls/library/sha1.c
index 7f0c8757db..6da641427c 100644
--- a/thirdparty/mbedtls/library/sha1.c
+++ b/thirdparty/mbedtls/library/sha1.c
@@ -35,32 +35,33 @@
 #include "mbedtls/platform.h"
 
 #define SHA1_VALIDATE_RET(cond)                             \
-    MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA1_BAD_INPUT_DATA )
+    MBEDTLS_INTERNAL_VALIDATE_RET(cond, MBEDTLS_ERR_SHA1_BAD_INPUT_DATA)
 
-#define SHA1_VALIDATE(cond)  MBEDTLS_INTERNAL_VALIDATE( cond )
+#define SHA1_VALIDATE(cond)  MBEDTLS_INTERNAL_VALIDATE(cond)
 
 #if !defined(MBEDTLS_SHA1_ALT)
 
-void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
+void mbedtls_sha1_init(mbedtls_sha1_context *ctx)
 {
-    SHA1_VALIDATE( ctx != NULL );
+    SHA1_VALIDATE(ctx != NULL);
 
-    memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
+    memset(ctx, 0, sizeof(mbedtls_sha1_context));
 }
 
-void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
+void mbedtls_sha1_free(mbedtls_sha1_context *ctx)
 {
-    if( ctx == NULL )
+    if (ctx == NULL) {
         return;
+    }
 
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
+    mbedtls_platform_zeroize(ctx, sizeof(mbedtls_sha1_context));
 }
 
-void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
-                         const mbedtls_sha1_context *src )
+void mbedtls_sha1_clone(mbedtls_sha1_context *dst,
+                        const mbedtls_sha1_context *src)
 {
-    SHA1_VALIDATE( dst != NULL );
-    SHA1_VALIDATE( src != NULL );
+    SHA1_VALIDATE(dst != NULL);
+    SHA1_VALIDATE(src != NULL);
 
     *dst = *src;
 }
@@ -68,9 +69,9 @@ void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
 /*
  * SHA-1 context setup
  */
-int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx )
+int mbedtls_sha1_starts_ret(mbedtls_sha1_context *ctx)
 {
-    SHA1_VALIDATE_RET( ctx != NULL );
+    SHA1_VALIDATE_RET(ctx != NULL);
 
     ctx->total[0] = 0;
     ctx->total[1] = 0;
@@ -81,62 +82,61 @@ int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx )
     ctx->state[3] = 0x10325476;
     ctx->state[4] = 0xC3D2E1F0;
 
-    return( 0 );
+    return 0;
 }
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-void mbedtls_sha1_starts( mbedtls_sha1_context *ctx )
+void mbedtls_sha1_starts(mbedtls_sha1_context *ctx)
 {
-    mbedtls_sha1_starts_ret( ctx );
+    mbedtls_sha1_starts_ret(ctx);
 }
 #endif
 
 #if !defined(MBEDTLS_SHA1_PROCESS_ALT)
-int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
-                                   const unsigned char data[64] )
+int mbedtls_internal_sha1_process(mbedtls_sha1_context *ctx,
+                                  const unsigned char data[64])
 {
-    struct
-    {
+    struct {
         uint32_t temp, W[16], A, B, C, D, E;
     } local;
 
-    SHA1_VALIDATE_RET( ctx != NULL );
-    SHA1_VALIDATE_RET( (const unsigned char *)data != NULL );
-
-    local.W[ 0] = MBEDTLS_GET_UINT32_BE( data,  0 );
-    local.W[ 1] = MBEDTLS_GET_UINT32_BE( data,  4 );
-    local.W[ 2] = MBEDTLS_GET_UINT32_BE( data,  8 );
-    local.W[ 3] = MBEDTLS_GET_UINT32_BE( data, 12 );
-    local.W[ 4] = MBEDTLS_GET_UINT32_BE( data, 16 );
-    local.W[ 5] = MBEDTLS_GET_UINT32_BE( data, 20 );
-    local.W[ 6] = MBEDTLS_GET_UINT32_BE( data, 24 );
-    local.W[ 7] = MBEDTLS_GET_UINT32_BE( data, 28 );
-    local.W[ 8] = MBEDTLS_GET_UINT32_BE( data, 32 );
-    local.W[ 9] = MBEDTLS_GET_UINT32_BE( data, 36 );
-    local.W[10] = MBEDTLS_GET_UINT32_BE( data, 40 );
-    local.W[11] = MBEDTLS_GET_UINT32_BE( data, 44 );
-    local.W[12] = MBEDTLS_GET_UINT32_BE( data, 48 );
-    local.W[13] = MBEDTLS_GET_UINT32_BE( data, 52 );
-    local.W[14] = MBEDTLS_GET_UINT32_BE( data, 56 );
-    local.W[15] = MBEDTLS_GET_UINT32_BE( data, 60 );
-
-#define S(x,n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n))))
+    SHA1_VALIDATE_RET(ctx != NULL);
+    SHA1_VALIDATE_RET((const unsigned char *) data != NULL);
+
+    local.W[0] = MBEDTLS_GET_UINT32_BE(data,  0);
+    local.W[1] = MBEDTLS_GET_UINT32_BE(data,  4);
+    local.W[2] = MBEDTLS_GET_UINT32_BE(data,  8);
+    local.W[3] = MBEDTLS_GET_UINT32_BE(data, 12);
+    local.W[4] = MBEDTLS_GET_UINT32_BE(data, 16);
+    local.W[5] = MBEDTLS_GET_UINT32_BE(data, 20);
+    local.W[6] = MBEDTLS_GET_UINT32_BE(data, 24);
+    local.W[7] = MBEDTLS_GET_UINT32_BE(data, 28);
+    local.W[8] = MBEDTLS_GET_UINT32_BE(data, 32);
+    local.W[9] = MBEDTLS_GET_UINT32_BE(data, 36);
+    local.W[10] = MBEDTLS_GET_UINT32_BE(data, 40);
+    local.W[11] = MBEDTLS_GET_UINT32_BE(data, 44);
+    local.W[12] = MBEDTLS_GET_UINT32_BE(data, 48);
+    local.W[13] = MBEDTLS_GET_UINT32_BE(data, 52);
+    local.W[14] = MBEDTLS_GET_UINT32_BE(data, 56);
+    local.W[15] = MBEDTLS_GET_UINT32_BE(data, 60);
+
+#define S(x, n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n))))
 
 #define R(t)                                                    \
     (                                                           \
-        local.temp = local.W[( (t) -  3 ) & 0x0F] ^             \
-                     local.W[( (t) -  8 ) & 0x0F] ^             \
-                     local.W[( (t) - 14 ) & 0x0F] ^             \
-                     local.W[  (t)        & 0x0F],              \
-        ( local.W[(t) & 0x0F] = S(local.temp,1) )               \
+        local.temp = local.W[((t) -  3) & 0x0F] ^             \
+                     local.W[((t) -  8) & 0x0F] ^             \
+                     local.W[((t) - 14) & 0x0F] ^             \
+                     local.W[(t)        & 0x0F],              \
+        (local.W[(t) & 0x0F] = S(local.temp, 1))               \
     )
 
-#define P(a,b,c,d,e,x)                                          \
+#define P(a, b, c, d, e, x)                                          \
     do                                                          \
     {                                                           \
-        (e) += S((a),5) + F((b),(c),(d)) + K + (x);             \
-        (b) = S((b),30);                                        \
-    } while( 0 )
+        (e) += S((a), 5) + F((b), (c), (d)) + K + (x);             \
+        (b) = S((b), 30);                                        \
+    } while (0)
 
     local.A = ctx->state[0];
     local.B = ctx->state[1];
@@ -144,110 +144,110 @@ int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
     local.D = ctx->state[3];
     local.E = ctx->state[4];
 
-#define F(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
+#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
 #define K 0x5A827999
 
-    P( local.A, local.B, local.C, local.D, local.E, local.W[0]  );
-    P( local.E, local.A, local.B, local.C, local.D, local.W[1]  );
-    P( local.D, local.E, local.A, local.B, local.C, local.W[2]  );
-    P( local.C, local.D, local.E, local.A, local.B, local.W[3]  );
-    P( local.B, local.C, local.D, local.E, local.A, local.W[4]  );
-    P( local.A, local.B, local.C, local.D, local.E, local.W[5]  );
-    P( local.E, local.A, local.B, local.C, local.D, local.W[6]  );
-    P( local.D, local.E, local.A, local.B, local.C, local.W[7]  );
-    P( local.C, local.D, local.E, local.A, local.B, local.W[8]  );
-    P( local.B, local.C, local.D, local.E, local.A, local.W[9]  );
-    P( local.A, local.B, local.C, local.D, local.E, local.W[10] );
-    P( local.E, local.A, local.B, local.C, local.D, local.W[11] );
-    P( local.D, local.E, local.A, local.B, local.C, local.W[12] );
-    P( local.C, local.D, local.E, local.A, local.B, local.W[13] );
-    P( local.B, local.C, local.D, local.E, local.A, local.W[14] );
-    P( local.A, local.B, local.C, local.D, local.E, local.W[15] );
-    P( local.E, local.A, local.B, local.C, local.D, R(16) );
-    P( local.D, local.E, local.A, local.B, local.C, R(17) );
-    P( local.C, local.D, local.E, local.A, local.B, R(18) );
-    P( local.B, local.C, local.D, local.E, local.A, R(19) );
+    P(local.A, local.B, local.C, local.D, local.E, local.W[0]);
+    P(local.E, local.A, local.B, local.C, local.D, local.W[1]);
+    P(local.D, local.E, local.A, local.B, local.C, local.W[2]);
+    P(local.C, local.D, local.E, local.A, local.B, local.W[3]);
+    P(local.B, local.C, local.D, local.E, local.A, local.W[4]);
+    P(local.A, local.B, local.C, local.D, local.E, local.W[5]);
+    P(local.E, local.A, local.B, local.C, local.D, local.W[6]);
+    P(local.D, local.E, local.A, local.B, local.C, local.W[7]);
+    P(local.C, local.D, local.E, local.A, local.B, local.W[8]);
+    P(local.B, local.C, local.D, local.E, local.A, local.W[9]);
+    P(local.A, local.B, local.C, local.D, local.E, local.W[10]);
+    P(local.E, local.A, local.B, local.C, local.D, local.W[11]);
+    P(local.D, local.E, local.A, local.B, local.C, local.W[12]);
+    P(local.C, local.D, local.E, local.A, local.B, local.W[13]);
+    P(local.B, local.C, local.D, local.E, local.A, local.W[14]);
+    P(local.A, local.B, local.C, local.D, local.E, local.W[15]);
+    P(local.E, local.A, local.B, local.C, local.D, R(16));
+    P(local.D, local.E, local.A, local.B, local.C, R(17));
+    P(local.C, local.D, local.E, local.A, local.B, R(18));
+    P(local.B, local.C, local.D, local.E, local.A, R(19));
 
 #undef K
 #undef F
 
-#define F(x,y,z) ((x) ^ (y) ^ (z))
+#define F(x, y, z) ((x) ^ (y) ^ (z))
 #define K 0x6ED9EBA1
 
-    P( local.A, local.B, local.C, local.D, local.E, R(20) );
-    P( local.E, local.A, local.B, local.C, local.D, R(21) );
-    P( local.D, local.E, local.A, local.B, local.C, R(22) );
-    P( local.C, local.D, local.E, local.A, local.B, R(23) );
-    P( local.B, local.C, local.D, local.E, local.A, R(24) );
-    P( local.A, local.B, local.C, local.D, local.E, R(25) );
-    P( local.E, local.A, local.B, local.C, local.D, R(26) );
-    P( local.D, local.E, local.A, local.B, local.C, R(27) );
-    P( local.C, local.D, local.E, local.A, local.B, R(28) );
-    P( local.B, local.C, local.D, local.E, local.A, R(29) );
-    P( local.A, local.B, local.C, local.D, local.E, R(30) );
-    P( local.E, local.A, local.B, local.C, local.D, R(31) );
-    P( local.D, local.E, local.A, local.B, local.C, R(32) );
-    P( local.C, local.D, local.E, local.A, local.B, R(33) );
-    P( local.B, local.C, local.D, local.E, local.A, R(34) );
-    P( local.A, local.B, local.C, local.D, local.E, R(35) );
-    P( local.E, local.A, local.B, local.C, local.D, R(36) );
-    P( local.D, local.E, local.A, local.B, local.C, R(37) );
-    P( local.C, local.D, local.E, local.A, local.B, R(38) );
-    P( local.B, local.C, local.D, local.E, local.A, R(39) );
+    P(local.A, local.B, local.C, local.D, local.E, R(20));
+    P(local.E, local.A, local.B, local.C, local.D, R(21));
+    P(local.D, local.E, local.A, local.B, local.C, R(22));
+    P(local.C, local.D, local.E, local.A, local.B, R(23));
+    P(local.B, local.C, local.D, local.E, local.A, R(24));
+    P(local.A, local.B, local.C, local.D, local.E, R(25));
+    P(local.E, local.A, local.B, local.C, local.D, R(26));
+    P(local.D, local.E, local.A, local.B, local.C, R(27));
+    P(local.C, local.D, local.E, local.A, local.B, R(28));
+    P(local.B, local.C, local.D, local.E, local.A, R(29));
+    P(local.A, local.B, local.C, local.D, local.E, R(30));
+    P(local.E, local.A, local.B, local.C, local.D, R(31));
+    P(local.D, local.E, local.A, local.B, local.C, R(32));
+    P(local.C, local.D, local.E, local.A, local.B, R(33));
+    P(local.B, local.C, local.D, local.E, local.A, R(34));
+    P(local.A, local.B, local.C, local.D, local.E, R(35));
+    P(local.E, local.A, local.B, local.C, local.D, R(36));
+    P(local.D, local.E, local.A, local.B, local.C, R(37));
+    P(local.C, local.D, local.E, local.A, local.B, R(38));
+    P(local.B, local.C, local.D, local.E, local.A, R(39));
 
 #undef K
 #undef F
 
-#define F(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
+#define F(x, y, z) (((x) & (y)) | ((z) & ((x) | (y))))
 #define K 0x8F1BBCDC
 
-    P( local.A, local.B, local.C, local.D, local.E, R(40) );
-    P( local.E, local.A, local.B, local.C, local.D, R(41) );
-    P( local.D, local.E, local.A, local.B, local.C, R(42) );
-    P( local.C, local.D, local.E, local.A, local.B, R(43) );
-    P( local.B, local.C, local.D, local.E, local.A, R(44) );
-    P( local.A, local.B, local.C, local.D, local.E, R(45) );
-    P( local.E, local.A, local.B, local.C, local.D, R(46) );
-    P( local.D, local.E, local.A, local.B, local.C, R(47) );
-    P( local.C, local.D, local.E, local.A, local.B, R(48) );
-    P( local.B, local.C, local.D, local.E, local.A, R(49) );
-    P( local.A, local.B, local.C, local.D, local.E, R(50) );
-    P( local.E, local.A, local.B, local.C, local.D, R(51) );
-    P( local.D, local.E, local.A, local.B, local.C, R(52) );
-    P( local.C, local.D, local.E, local.A, local.B, R(53) );
-    P( local.B, local.C, local.D, local.E, local.A, R(54) );
-    P( local.A, local.B, local.C, local.D, local.E, R(55) );
-    P( local.E, local.A, local.B, local.C, local.D, R(56) );
-    P( local.D, local.E, local.A, local.B, local.C, R(57) );
-    P( local.C, local.D, local.E, local.A, local.B, R(58) );
-    P( local.B, local.C, local.D, local.E, local.A, R(59) );
+    P(local.A, local.B, local.C, local.D, local.E, R(40));
+    P(local.E, local.A, local.B, local.C, local.D, R(41));
+    P(local.D, local.E, local.A, local.B, local.C, R(42));
+    P(local.C, local.D, local.E, local.A, local.B, R(43));
+    P(local.B, local.C, local.D, local.E, local.A, R(44));
+    P(local.A, local.B, local.C, local.D, local.E, R(45));
+    P(local.E, local.A, local.B, local.C, local.D, R(46));
+    P(local.D, local.E, local.A, local.B, local.C, R(47));
+    P(local.C, local.D, local.E, local.A, local.B, R(48));
+    P(local.B, local.C, local.D, local.E, local.A, R(49));
+    P(local.A, local.B, local.C, local.D, local.E, R(50));
+    P(local.E, local.A, local.B, local.C, local.D, R(51));
+    P(local.D, local.E, local.A, local.B, local.C, R(52));
+    P(local.C, local.D, local.E, local.A, local.B, R(53));
+    P(local.B, local.C, local.D, local.E, local.A, R(54));
+    P(local.A, local.B, local.C, local.D, local.E, R(55));
+    P(local.E, local.A, local.B, local.C, local.D, R(56));
+    P(local.D, local.E, local.A, local.B, local.C, R(57));
+    P(local.C, local.D, local.E, local.A, local.B, R(58));
+    P(local.B, local.C, local.D, local.E, local.A, R(59));
 
 #undef K
 #undef F
 
-#define F(x,y,z) ((x) ^ (y) ^ (z))
+#define F(x, y, z) ((x) ^ (y) ^ (z))
 #define K 0xCA62C1D6
 
-    P( local.A, local.B, local.C, local.D, local.E, R(60) );
-    P( local.E, local.A, local.B, local.C, local.D, R(61) );
-    P( local.D, local.E, local.A, local.B, local.C, R(62) );
-    P( local.C, local.D, local.E, local.A, local.B, R(63) );
-    P( local.B, local.C, local.D, local.E, local.A, R(64) );
-    P( local.A, local.B, local.C, local.D, local.E, R(65) );
-    P( local.E, local.A, local.B, local.C, local.D, R(66) );
-    P( local.D, local.E, local.A, local.B, local.C, R(67) );
-    P( local.C, local.D, local.E, local.A, local.B, R(68) );
-    P( local.B, local.C, local.D, local.E, local.A, R(69) );
-    P( local.A, local.B, local.C, local.D, local.E, R(70) );
-    P( local.E, local.A, local.B, local.C, local.D, R(71) );
-    P( local.D, local.E, local.A, local.B, local.C, R(72) );
-    P( local.C, local.D, local.E, local.A, local.B, R(73) );
-    P( local.B, local.C, local.D, local.E, local.A, R(74) );
-    P( local.A, local.B, local.C, local.D, local.E, R(75) );
-    P( local.E, local.A, local.B, local.C, local.D, R(76) );
-    P( local.D, local.E, local.A, local.B, local.C, R(77) );
-    P( local.C, local.D, local.E, local.A, local.B, R(78) );
-    P( local.B, local.C, local.D, local.E, local.A, R(79) );
+    P(local.A, local.B, local.C, local.D, local.E, R(60));
+    P(local.E, local.A, local.B, local.C, local.D, R(61));
+    P(local.D, local.E, local.A, local.B, local.C, R(62));
+    P(local.C, local.D, local.E, local.A, local.B, R(63));
+    P(local.B, local.C, local.D, local.E, local.A, R(64));
+    P(local.A, local.B, local.C, local.D, local.E, R(65));
+    P(local.E, local.A, local.B, local.C, local.D, R(66));
+    P(local.D, local.E, local.A, local.B, local.C, R(67));
+    P(local.C, local.D, local.E, local.A, local.B, R(68));
+    P(local.B, local.C, local.D, local.E, local.A, R(69));
+    P(local.A, local.B, local.C, local.D, local.E, R(70));
+    P(local.E, local.A, local.B, local.C, local.D, R(71));
+    P(local.D, local.E, local.A, local.B, local.C, R(72));
+    P(local.C, local.D, local.E, local.A, local.B, R(73));
+    P(local.B, local.C, local.D, local.E, local.A, R(74));
+    P(local.A, local.B, local.C, local.D, local.E, R(75));
+    P(local.E, local.A, local.B, local.C, local.D, R(76));
+    P(local.D, local.E, local.A, local.B, local.C, R(77));
+    P(local.C, local.D, local.E, local.A, local.B, R(78));
+    P(local.B, local.C, local.D, local.E, local.A, R(79));
 
 #undef K
 #undef F
@@ -259,16 +259,16 @@ int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
     ctx->state[4] += local.E;
 
     /* Zeroise buffers and variables to clear sensitive data from memory. */
-    mbedtls_platform_zeroize( &local, sizeof( local ) );
+    mbedtls_platform_zeroize(&local, sizeof(local));
 
-    return( 0 );
+    return 0;
 }
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-void mbedtls_sha1_process( mbedtls_sha1_context *ctx,
-                           const unsigned char data[64] )
+void mbedtls_sha1_process(mbedtls_sha1_context *ctx,
+                          const unsigned char data[64])
 {
-    mbedtls_internal_sha1_process( ctx, data );
+    mbedtls_internal_sha1_process(ctx, data);
 }
 #endif
 #endif /* !MBEDTLS_SHA1_PROCESS_ALT */
@@ -276,19 +276,20 @@ void mbedtls_sha1_process( mbedtls_sha1_context *ctx,
 /*
  * SHA-1 process buffer
  */
-int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
-                             const unsigned char *input,
-                             size_t ilen )
+int mbedtls_sha1_update_ret(mbedtls_sha1_context *ctx,
+                            const unsigned char *input,
+                            size_t ilen)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t fill;
     uint32_t left;
 
-    SHA1_VALIDATE_RET( ctx != NULL );
-    SHA1_VALIDATE_RET( ilen == 0 || input != NULL );
+    SHA1_VALIDATE_RET(ctx != NULL);
+    SHA1_VALIDATE_RET(ilen == 0 || input != NULL);
 
-    if( ilen == 0 )
-        return( 0 );
+    if (ilen == 0) {
+        return 0;
+    }
 
     left = ctx->total[0] & 0x3F;
     fill = 64 - left;
@@ -296,57 +297,59 @@ int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
     ctx->total[0] += (uint32_t) ilen;
     ctx->total[0] &= 0xFFFFFFFF;
 
-    if( ctx->total[0] < (uint32_t) ilen )
+    if (ctx->total[0] < (uint32_t) ilen) {
         ctx->total[1]++;
+    }
 
-    if( left && ilen >= fill )
-    {
-        memcpy( (void *) (ctx->buffer + left), input, fill );
+    if (left && ilen >= fill) {
+        memcpy((void *) (ctx->buffer + left), input, fill);
 
-        if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
-            return( ret );
+        if ((ret = mbedtls_internal_sha1_process(ctx, ctx->buffer)) != 0) {
+            return ret;
+        }
 
         input += fill;
         ilen  -= fill;
         left = 0;
     }
 
-    while( ilen >= 64 )
-    {
-        if( ( ret = mbedtls_internal_sha1_process( ctx, input ) ) != 0 )
-            return( ret );
+    while (ilen >= 64) {
+        if ((ret = mbedtls_internal_sha1_process(ctx, input)) != 0) {
+            return ret;
+        }
 
         input += 64;
         ilen  -= 64;
     }
 
-    if( ilen > 0 )
-        memcpy( (void *) (ctx->buffer + left), input, ilen );
+    if (ilen > 0) {
+        memcpy((void *) (ctx->buffer + left), input, ilen);
+    }
 
-    return( 0 );
+    return 0;
 }
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-void mbedtls_sha1_update( mbedtls_sha1_context *ctx,
-                          const unsigned char *input,
-                          size_t ilen )
+void mbedtls_sha1_update(mbedtls_sha1_context *ctx,
+                         const unsigned char *input,
+                         size_t ilen)
 {
-    mbedtls_sha1_update_ret( ctx, input, ilen );
+    mbedtls_sha1_update_ret(ctx, input, ilen);
 }
 #endif
 
 /*
  * SHA-1 final digest
  */
-int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
-                             unsigned char output[20] )
+int mbedtls_sha1_finish_ret(mbedtls_sha1_context *ctx,
+                            unsigned char output[20])
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     uint32_t used;
     uint32_t high, low;
 
-    SHA1_VALIDATE_RET( ctx != NULL );
-    SHA1_VALIDATE_RET( (unsigned char *)output != NULL );
+    SHA1_VALIDATE_RET(ctx != NULL);
+    SHA1_VALIDATE_RET((unsigned char *) output != NULL);
 
     /*
      * Add padding: 0x80 then 0x00 until 8 bytes remain for the length
@@ -355,52 +358,51 @@ int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
 
     ctx->buffer[used++] = 0x80;
 
-    if( used <= 56 )
-    {
+    if (used <= 56) {
         /* Enough room for padding + length in current block */
-        memset( ctx->buffer + used, 0, 56 - used );
-    }
-    else
-    {
+        memset(ctx->buffer + used, 0, 56 - used);
+    } else {
         /* We'll need an extra block */
-        memset( ctx->buffer + used, 0, 64 - used );
+        memset(ctx->buffer + used, 0, 64 - used);
 
-        if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
-            return( ret );
+        if ((ret = mbedtls_internal_sha1_process(ctx, ctx->buffer)) != 0) {
+            return ret;
+        }
 
-        memset( ctx->buffer, 0, 56 );
+        memset(ctx->buffer, 0, 56);
     }
 
     /*
      * Add message length
      */
-    high = ( ctx->total[0] >> 29 )
-         | ( ctx->total[1] <<  3 );
-    low  = ( ctx->total[0] <<  3 );
+    high = (ctx->total[0] >> 29)
+           | (ctx->total[1] <<  3);
+    low  = (ctx->total[0] <<  3);
 
-    MBEDTLS_PUT_UINT32_BE( high, ctx->buffer, 56 );
-    MBEDTLS_PUT_UINT32_BE( low,  ctx->buffer, 60 );
+    MBEDTLS_PUT_UINT32_BE(high, ctx->buffer, 56);
+    MBEDTLS_PUT_UINT32_BE(low,  ctx->buffer, 60);
 
-    if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_internal_sha1_process(ctx, ctx->buffer)) != 0) {
+        return ret;
+    }
 
     /*
      * Output final state
      */
-    MBEDTLS_PUT_UINT32_BE( ctx->state[0], output,  0 );
-    MBEDTLS_PUT_UINT32_BE( ctx->state[1], output,  4 );
-    MBEDTLS_PUT_UINT32_BE( ctx->state[2], output,  8 );
-    MBEDTLS_PUT_UINT32_BE( ctx->state[3], output, 12 );
-    MBEDTLS_PUT_UINT32_BE( ctx->state[4], output, 16 );
+    MBEDTLS_PUT_UINT32_BE(ctx->state[0], output,  0);
+    MBEDTLS_PUT_UINT32_BE(ctx->state[1], output,  4);
+    MBEDTLS_PUT_UINT32_BE(ctx->state[2], output,  8);
+    MBEDTLS_PUT_UINT32_BE(ctx->state[3], output, 12);
+    MBEDTLS_PUT_UINT32_BE(ctx->state[4], output, 16);
 
-    return( 0 );
+    return 0;
 }
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-void mbedtls_sha1_finish( mbedtls_sha1_context *ctx,
-                          unsigned char output[20] )
+void mbedtls_sha1_finish(mbedtls_sha1_context *ctx,
+                         unsigned char output[20])
 {
-    mbedtls_sha1_finish_ret( ctx, output );
+    mbedtls_sha1_finish_ret(ctx, output);
 }
 #endif
 
@@ -409,39 +411,42 @@ void mbedtls_sha1_finish( mbedtls_sha1_context *ctx,
 /*
  * output = SHA-1( input buffer )
  */
-int mbedtls_sha1_ret( const unsigned char *input,
-                      size_t ilen,
-                      unsigned char output[20] )
+int mbedtls_sha1_ret(const unsigned char *input,
+                     size_t ilen,
+                     unsigned char output[20])
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_sha1_context ctx;
 
-    SHA1_VALIDATE_RET( ilen == 0 || input != NULL );
-    SHA1_VALIDATE_RET( (unsigned char *)output != NULL );
+    SHA1_VALIDATE_RET(ilen == 0 || input != NULL);
+    SHA1_VALIDATE_RET((unsigned char *) output != NULL);
 
-    mbedtls_sha1_init( &ctx );
+    mbedtls_sha1_init(&ctx);
 
-    if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
+    if ((ret = mbedtls_sha1_starts_ret(&ctx)) != 0) {
         goto exit;
+    }
 
-    if( ( ret = mbedtls_sha1_update_ret( &ctx, input, ilen ) ) != 0 )
+    if ((ret = mbedtls_sha1_update_ret(&ctx, input, ilen)) != 0) {
         goto exit;
+    }
 
-    if( ( ret = mbedtls_sha1_finish_ret( &ctx, output ) ) != 0 )
+    if ((ret = mbedtls_sha1_finish_ret(&ctx, output)) != 0) {
         goto exit;
+    }
 
 exit:
-    mbedtls_sha1_free( &ctx );
+    mbedtls_sha1_free(&ctx);
 
-    return( ret );
+    return ret;
 }
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-void mbedtls_sha1( const unsigned char *input,
-                   size_t ilen,
-                   unsigned char output[20] )
+void mbedtls_sha1(const unsigned char *input,
+                  size_t ilen,
+                  unsigned char output[20])
 {
-    mbedtls_sha1_ret( input, ilen, output );
+    mbedtls_sha1_ret(input, ilen, output);
 }
 #endif
 
@@ -474,71 +479,73 @@ static const unsigned char sha1_test_sum[3][20] =
 /*
  * Checkup routine
  */
-int mbedtls_sha1_self_test( int verbose )
+int mbedtls_sha1_self_test(int verbose)
 {
     int i, j, buflen, ret = 0;
     unsigned char buf[1024];
     unsigned char sha1sum[20];
     mbedtls_sha1_context ctx;
 
-    mbedtls_sha1_init( &ctx );
+    mbedtls_sha1_init(&ctx);
 
     /*
      * SHA-1
      */
-    for( i = 0; i < 3; i++ )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "  SHA-1 test #%d: ", i + 1 );
+    for (i = 0; i < 3; i++) {
+        if (verbose != 0) {
+            mbedtls_printf("  SHA-1 test #%d: ", i + 1);
+        }
 
-        if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
+        if ((ret = mbedtls_sha1_starts_ret(&ctx)) != 0) {
             goto fail;
+        }
 
-        if( i == 2 )
-        {
-            memset( buf, 'a', buflen = 1000 );
+        if (i == 2) {
+            memset(buf, 'a', buflen = 1000);
 
-            for( j = 0; j < 1000; j++ )
-            {
-                ret = mbedtls_sha1_update_ret( &ctx, buf, buflen );
-                if( ret != 0 )
+            for (j = 0; j < 1000; j++) {
+                ret = mbedtls_sha1_update_ret(&ctx, buf, buflen);
+                if (ret != 0) {
                     goto fail;
+                }
             }
-        }
-        else
-        {
-            ret = mbedtls_sha1_update_ret( &ctx, sha1_test_buf[i],
-                                           sha1_test_buflen[i] );
-            if( ret != 0 )
+        } else {
+            ret = mbedtls_sha1_update_ret(&ctx, sha1_test_buf[i],
+                                          sha1_test_buflen[i]);
+            if (ret != 0) {
                 goto fail;
+            }
         }
 
-        if( ( ret = mbedtls_sha1_finish_ret( &ctx, sha1sum ) ) != 0 )
+        if ((ret = mbedtls_sha1_finish_ret(&ctx, sha1sum)) != 0) {
             goto fail;
+        }
 
-        if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
-        {
+        if (memcmp(sha1sum, sha1_test_sum[i], 20) != 0) {
             ret = 1;
             goto fail;
         }
 
-        if( verbose != 0 )
-            mbedtls_printf( "passed\n" );
+        if (verbose != 0) {
+            mbedtls_printf("passed\n");
+        }
     }
 
-    if( verbose != 0 )
-        mbedtls_printf( "\n" );
+    if (verbose != 0) {
+        mbedtls_printf("\n");
+    }
 
     goto exit;
 
 fail:
-    if( verbose != 0 )
-        mbedtls_printf( "failed\n" );
+    if (verbose != 0) {
+        mbedtls_printf("failed\n");
+    }
 
 exit:
-    mbedtls_sha1_free( &ctx );
+    mbedtls_sha1_free(&ctx);
 
-    return( ret );
+    return ret;
 }
 
 #endif /* MBEDTLS_SELF_TEST */