diff options
author | Craig Tiller <ctiller@google.com> | 2015-09-22 12:33:20 -0700 |
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committer | Craig Tiller <ctiller@google.com> | 2015-09-22 12:33:20 -0700 |
commit | a82950e68318a6aab6fe894fa39f7fa616c4647b (patch) | |
tree | 7d02bd1e9e1cbae1f14ad4ad1e06d3ae81a96dfe /src/core/security/base64.c | |
parent | 8af4c337181322cc4fb396199c90f574cfb4163f (diff) |
clang-format all core files
Diffstat (limited to 'src/core/security/base64.c')
-rw-r--r-- | src/core/security/base64.c | 311 |
1 files changed, 143 insertions, 168 deletions
diff --git a/src/core/security/base64.c b/src/core/security/base64.c index 4d86da9453..5226d2c578 100644 --- a/src/core/security/base64.c +++ b/src/core/security/base64.c @@ -42,21 +42,22 @@ /* --- Constants. --- */ static const char base64_bytes[] = { - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, 0x3E, -1, -1, -1, 0x3F, - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, -1, -1, - -1, 0x7F, -1, -1, -1, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, - 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, - 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, -1, -1, -1, -1, -1, - -1, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, - 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, - 0x31, 0x32, 0x33, -1, -1, -1, -1, -1 -}; - -static const char base64_url_unsafe_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; -static const char base64_url_safe_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, 0x3E, -1, -1, -1, 0x3F, + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, -1, -1, + -1, 0x7F, -1, -1, -1, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, + 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, + 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, -1, -1, -1, -1, -1, + -1, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, + 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, + 0x31, 0x32, 0x33, -1, -1, -1, -1, -1}; + +static const char base64_url_unsafe_chars[] = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; +static const char base64_url_safe_chars[] = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; #define GRPC_BASE64_PAD_CHAR '=' #define GRPC_BASE64_PAD_BYTE 0x7F @@ -65,194 +66,168 @@ static const char base64_url_safe_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi /* --- base64 functions. --- */ -char * -grpc_base64_encode (const void *vdata, size_t data_size, int url_safe, int multiline) -{ +char *grpc_base64_encode(const void *vdata, size_t data_size, int url_safe, + int multiline) { const unsigned char *data = vdata; - const char *base64_chars = url_safe ? base64_url_safe_chars : base64_url_unsafe_chars; - size_t result_projected_size = 4 * ((data_size + 3) / 3) + 2 * (multiline ? (data_size / (3 * GRPC_BASE64_MULTILINE_NUM_BLOCKS)) : 0) + 1; - char *result = gpr_malloc (result_projected_size); + const char *base64_chars = + url_safe ? base64_url_safe_chars : base64_url_unsafe_chars; + size_t result_projected_size = + 4 * ((data_size + 3) / 3) + + 2 * (multiline ? (data_size / (3 * GRPC_BASE64_MULTILINE_NUM_BLOCKS)) + : 0) + + 1; + char *result = gpr_malloc(result_projected_size); char *current = result; size_t num_blocks = 0; size_t i = 0; /* Encode each block. */ - while (data_size >= 3) - { - *current++ = base64_chars[(data[i] >> 2) & 0x3F]; - *current++ = base64_chars[((data[i] & 0x03) << 4) | ((data[i + 1] >> 4) & 0x0F)]; - *current++ = base64_chars[((data[i + 1] & 0x0F) << 2) | ((data[i + 2] >> 6) & 0x03)]; - *current++ = base64_chars[data[i + 2] & 0x3F]; - - data_size -= 3; - i += 3; - if (multiline && (++num_blocks == GRPC_BASE64_MULTILINE_NUM_BLOCKS)) - { - *current++ = '\r'; - *current++ = '\n'; - num_blocks = 0; - } + while (data_size >= 3) { + *current++ = base64_chars[(data[i] >> 2) & 0x3F]; + *current++ = + base64_chars[((data[i] & 0x03) << 4) | ((data[i + 1] >> 4) & 0x0F)]; + *current++ = + base64_chars[((data[i + 1] & 0x0F) << 2) | ((data[i + 2] >> 6) & 0x03)]; + *current++ = base64_chars[data[i + 2] & 0x3F]; + + data_size -= 3; + i += 3; + if (multiline && (++num_blocks == GRPC_BASE64_MULTILINE_NUM_BLOCKS)) { + *current++ = '\r'; + *current++ = '\n'; + num_blocks = 0; } + } /* Take care of the tail. */ - if (data_size == 2) - { - *current++ = base64_chars[(data[i] >> 2) & 0x3F]; - *current++ = base64_chars[((data[i] & 0x03) << 4) | ((data[i + 1] >> 4) & 0x0F)]; - *current++ = base64_chars[(data[i + 1] & 0x0F) << 2]; - *current++ = GRPC_BASE64_PAD_CHAR; - } - else if (data_size == 1) - { - *current++ = base64_chars[(data[i] >> 2) & 0x3F]; - *current++ = base64_chars[(data[i] & 0x03) << 4]; - *current++ = GRPC_BASE64_PAD_CHAR; - *current++ = GRPC_BASE64_PAD_CHAR; - } - - GPR_ASSERT (current >= result); - GPR_ASSERT ((gpr_uintptr) (current - result) < result_projected_size); + if (data_size == 2) { + *current++ = base64_chars[(data[i] >> 2) & 0x3F]; + *current++ = + base64_chars[((data[i] & 0x03) << 4) | ((data[i + 1] >> 4) & 0x0F)]; + *current++ = base64_chars[(data[i + 1] & 0x0F) << 2]; + *current++ = GRPC_BASE64_PAD_CHAR; + } else if (data_size == 1) { + *current++ = base64_chars[(data[i] >> 2) & 0x3F]; + *current++ = base64_chars[(data[i] & 0x03) << 4]; + *current++ = GRPC_BASE64_PAD_CHAR; + *current++ = GRPC_BASE64_PAD_CHAR; + } + + GPR_ASSERT(current >= result); + GPR_ASSERT((gpr_uintptr)(current - result) < result_projected_size); result[current - result] = '\0'; return result; } -gpr_slice -grpc_base64_decode (const char *b64, int url_safe) -{ - return grpc_base64_decode_with_len (b64, strlen (b64), url_safe); +gpr_slice grpc_base64_decode(const char *b64, int url_safe) { + return grpc_base64_decode_with_len(b64, strlen(b64), url_safe); } -static void -decode_one_char (const unsigned char *codes, unsigned char *result, size_t * result_offset) -{ - gpr_uint32 packed = ((gpr_uint32) codes[0] << 2) | ((gpr_uint32) codes[1] >> 4); - result[(*result_offset)++] = (unsigned char) packed; +static void decode_one_char(const unsigned char *codes, unsigned char *result, + size_t *result_offset) { + gpr_uint32 packed = ((gpr_uint32)codes[0] << 2) | ((gpr_uint32)codes[1] >> 4); + result[(*result_offset)++] = (unsigned char)packed; } -static void -decode_two_chars (const unsigned char *codes, unsigned char *result, size_t * result_offset) -{ - gpr_uint32 packed = ((gpr_uint32) codes[0] << 10) | ((gpr_uint32) codes[1] << 4) | ((gpr_uint32) codes[2] >> 2); - result[(*result_offset)++] = (unsigned char) (packed >> 8); - result[(*result_offset)++] = (unsigned char) (packed); +static void decode_two_chars(const unsigned char *codes, unsigned char *result, + size_t *result_offset) { + gpr_uint32 packed = ((gpr_uint32)codes[0] << 10) | + ((gpr_uint32)codes[1] << 4) | ((gpr_uint32)codes[2] >> 2); + result[(*result_offset)++] = (unsigned char)(packed >> 8); + result[(*result_offset)++] = (unsigned char)(packed); } -static int -decode_group (const unsigned char *codes, size_t num_codes, unsigned char *result, size_t * result_offset) -{ - GPR_ASSERT (num_codes <= 4); +static int decode_group(const unsigned char *codes, size_t num_codes, + unsigned char *result, size_t *result_offset) { + GPR_ASSERT(num_codes <= 4); /* Short end groups that may not have padding. */ - if (num_codes == 1) - { - gpr_log (GPR_ERROR, "Invalid group. Must be at least 2 bytes."); - return 0; - } - if (num_codes == 2) - { - decode_one_char (codes, result, result_offset); - return 1; - } - if (num_codes == 3) - { - decode_two_chars (codes, result, result_offset); - return 1; - } + if (num_codes == 1) { + gpr_log(GPR_ERROR, "Invalid group. Must be at least 2 bytes."); + return 0; + } + if (num_codes == 2) { + decode_one_char(codes, result, result_offset); + return 1; + } + if (num_codes == 3) { + decode_two_chars(codes, result, result_offset); + return 1; + } /* Regular 4 byte groups with padding or not. */ - GPR_ASSERT (num_codes == 4); - if (codes[0] == GRPC_BASE64_PAD_BYTE || codes[1] == GRPC_BASE64_PAD_BYTE) - { - gpr_log (GPR_ERROR, "Invalid padding detected."); + GPR_ASSERT(num_codes == 4); + if (codes[0] == GRPC_BASE64_PAD_BYTE || codes[1] == GRPC_BASE64_PAD_BYTE) { + gpr_log(GPR_ERROR, "Invalid padding detected."); + return 0; + } + if (codes[2] == GRPC_BASE64_PAD_BYTE) { + if (codes[3] == GRPC_BASE64_PAD_BYTE) { + decode_one_char(codes, result, result_offset); + } else { + gpr_log(GPR_ERROR, "Invalid padding detected."); return 0; } - if (codes[2] == GRPC_BASE64_PAD_BYTE) - { - if (codes[3] == GRPC_BASE64_PAD_BYTE) - { - decode_one_char (codes, result, result_offset); - } - else - { - gpr_log (GPR_ERROR, "Invalid padding detected."); - return 0; - } - } - else if (codes[3] == GRPC_BASE64_PAD_BYTE) - { - decode_two_chars (codes, result, result_offset); - } - else - { - /* No padding. */ - gpr_uint32 packed = ((gpr_uint32) codes[0] << 18) | ((gpr_uint32) codes[1] << 12) | ((gpr_uint32) codes[2] << 6) | codes[3]; - result[(*result_offset)++] = (unsigned char) (packed >> 16); - result[(*result_offset)++] = (unsigned char) (packed >> 8); - result[(*result_offset)++] = (unsigned char) (packed); - } + } else if (codes[3] == GRPC_BASE64_PAD_BYTE) { + decode_two_chars(codes, result, result_offset); + } else { + /* No padding. */ + gpr_uint32 packed = ((gpr_uint32)codes[0] << 18) | + ((gpr_uint32)codes[1] << 12) | + ((gpr_uint32)codes[2] << 6) | codes[3]; + result[(*result_offset)++] = (unsigned char)(packed >> 16); + result[(*result_offset)++] = (unsigned char)(packed >> 8); + result[(*result_offset)++] = (unsigned char)(packed); + } return 1; } -gpr_slice -grpc_base64_decode_with_len (const char *b64, size_t b64_len, int url_safe) -{ - gpr_slice result = gpr_slice_malloc (b64_len); - unsigned char *current = GPR_SLICE_START_PTR (result); +gpr_slice grpc_base64_decode_with_len(const char *b64, size_t b64_len, + int url_safe) { + gpr_slice result = gpr_slice_malloc(b64_len); + unsigned char *current = GPR_SLICE_START_PTR(result); size_t result_size = 0; unsigned char codes[4]; size_t num_codes = 0; - while (b64_len--) - { - unsigned char c = (unsigned char) (*b64++); - signed char code; - if (c >= GPR_ARRAY_SIZE (base64_bytes)) - continue; - if (url_safe) - { - if (c == '+' || c == '/') - { - gpr_log (GPR_ERROR, "Invalid character for url safe base64 %c", c); - goto fail; - } - if (c == '-') - { - c = '+'; - } - else if (c == '_') - { - c = '/'; - } - } - code = base64_bytes[c]; - if (code == -1) - { - if (c != '\r' && c != '\n') - { - gpr_log (GPR_ERROR, "Invalid character %c", c); - goto fail; - } - } - else - { - codes[num_codes++] = (unsigned char) code; - if (num_codes == 4) - { - if (!decode_group (codes, num_codes, current, &result_size)) - goto fail; - num_codes = 0; - } - } + while (b64_len--) { + unsigned char c = (unsigned char)(*b64++); + signed char code; + if (c >= GPR_ARRAY_SIZE(base64_bytes)) continue; + if (url_safe) { + if (c == '+' || c == '/') { + gpr_log(GPR_ERROR, "Invalid character for url safe base64 %c", c); + goto fail; + } + if (c == '-') { + c = '+'; + } else if (c == '_') { + c = '/'; + } } - - if (num_codes != 0 && !decode_group (codes, num_codes, current, &result_size)) - { - goto fail; + code = base64_bytes[c]; + if (code == -1) { + if (c != '\r' && c != '\n') { + gpr_log(GPR_ERROR, "Invalid character %c", c); + goto fail; + } + } else { + codes[num_codes++] = (unsigned char)code; + if (num_codes == 4) { + if (!decode_group(codes, num_codes, current, &result_size)) goto fail; + num_codes = 0; + } } - GPR_SLICE_SET_LENGTH (result, result_size); + } + + if (num_codes != 0 && + !decode_group(codes, num_codes, current, &result_size)) { + goto fail; + } + GPR_SLICE_SET_LENGTH(result, result_size); return result; fail: - gpr_slice_unref (result); - return gpr_empty_slice (); + gpr_slice_unref(result); + return gpr_empty_slice(); } |