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Don't over-allocate in base64 encoding and decoding (#1751)

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Andrew Gaul 2021-08-30 00:03:10 +09:00 committed by GitHub
parent fcd180891b
commit dac6885fb0
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1 changed files with 2 additions and 2 deletions
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src/string_util.cpp
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@ -390,7 +390,7 @@ char* s3fs_base64(const unsigned char* input, size_t length)
if(!input || 0 == length){ if(!input || 0 == length){
return NULL; return NULL;
} }
result = new char[((length / 3) + 1) * 4 + 1]; result = new char[((length + 3 - 1) / 3) * 4 + 1];
unsigned char parts[4]; unsigned char parts[4];
size_t rpos; size_t rpos;
@ -438,7 +438,7 @@ unsigned char* s3fs_decode64(const char* input, size_t* plength)
if(!input || 0 == strlen(input) || !plength){ if(!input || 0 == strlen(input) || !plength){
return NULL; return NULL;
} }
result = new unsigned char[strlen(input) + 1]; result = new unsigned char[strlen(input) / 4 * 3 + 1];
unsigned char parts[4]; unsigned char parts[4];
size_t input_len = strlen(input); size_t input_len = strlen(input);