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Merge pull request #299 from guerital/tag-zero-fix

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Check if tag is equal to 0
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Robert Edmonds 2019-05-18 18:06:19 -04:00 committed by GitHub
commit d712e0c52d
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1 changed files with 5 additions and 0 deletions
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protobuf-c/protobuf-c.c
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@ -2072,6 +2072,11 @@ parse_tag_and_wiretype(size_t len,
unsigned shift = 4; unsigned shift = 4;
unsigned rv; unsigned rv;
/* 0 is not a valid tag value */
if ((data[0] & 0xf8) == 0) {
return 0;
}
*wiretype_out = data[0] & 7; *wiretype_out = data[0] & 7;
if ((data[0] & 0x80) == 0) { if ((data[0] & 0x80) == 0) {
*tag_out = tag; *tag_out = tag;