mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
70 lines
2.3 KiB
70 lines
2.3 KiB
/* |
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* |
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* Copyright 2015, 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 "test/core/util/parse_hexstring.h" |
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#include <grpc/support/log.h> |
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gpr_slice parse_hexstring(const char *hexstring) { |
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size_t nibbles = 0; |
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const char *p = 0; |
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uint8_t *out; |
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uint8_t temp; |
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gpr_slice slice; |
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for (p = hexstring; *p; p++) { |
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nibbles += (*p >= '0' && *p <= '9') || (*p >= 'a' && *p <= 'f'); |
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} |
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GPR_ASSERT((nibbles & 1) == 0); |
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slice = gpr_slice_malloc(nibbles / 2); |
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out = GPR_SLICE_START_PTR(slice); |
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nibbles = 0; |
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temp = 0; |
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for (p = hexstring; *p; p++) { |
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if (*p >= '0' && *p <= '9') { |
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temp = (uint8_t)(temp << 4) | (uint8_t)(*p - '0'); |
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nibbles++; |
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} else if (*p >= 'a' && *p <= 'f') { |
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temp = (uint8_t)(temp << 4) | (uint8_t)(*p - 'a' + 10); |
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nibbles++; |
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} |
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if (nibbles == 2) { |
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*out++ = temp; |
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nibbles = 0; |
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} |
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} |
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return slice; |
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}
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