mirror of https://github.com/grpc/grpc.git
murgatroid99
9 years ago
commit
c9d3084b10
24 changed files with 137 additions and 54 deletions
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/*
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include <stdlib.h> |
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#include <string.h> |
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#include <grpc/support/port_platform.h> |
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static int conforms_to(const char *s, size_t len, const gpr_uint8 *legal_bits) { |
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const char *p = s; |
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const char *e = s + len; |
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for (; p != e; p++) { |
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int idx = *p; |
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int byte = idx / 8; |
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int bit = idx % 8; |
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if ((legal_bits[byte] & (1 << bit)) == 0) return 0; |
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} |
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return 1; |
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} |
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int grpc_header_key_is_legal(const char *key, size_t length) { |
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static const gpr_uint8 legal_header_bits[256 / 8] = { |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0xff, 0x03, 0x00, 0x00, 0x00, |
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0x80, 0xfe, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
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return conforms_to(key, length, legal_header_bits); |
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} |
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int grpc_header_nonbin_value_is_legal(const char *value, size_t length) { |
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static const gpr_uint8 legal_header_bits[256 / 8] = { |
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0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
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0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
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return conforms_to(value, length, legal_header_bits); |
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} |
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int grpc_is_binary_header(const char *key, size_t length) { |
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if (length < 5) return 0; |
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return 0 == memcmp(key + length - 4, "-bin", 4); |
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} |
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