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Fixes issue-3153 - Allocating enough memory to construct the entire UUID as a String #3297

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Merged
merged 1 commit into from
Sep 29, 2019
Merged

Fixes issue-3153 - Allocating enough memory to construct the entire UUID as a String #3297

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2 changes: 1 addition & 1 deletion 2 libraries/BLE/src/BLEUUID.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -367,7 +367,7 @@ std::string BLEUUID::toString() {
//
// UUID string format:
// AABBCCDD-EEFF-GGHH-IIJJ-KKLLMMNNOOPP
auto size = 35;
auto size = 37; // 32 for UUID data, 4 for '-' delimiters and one for a terminator == 37 chars
char *hex = (char *)malloc(size);
snprintf(hex, size, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
m_uuid.uuid.uuid128[15], m_uuid.uuid.uuid128[14],
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