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fix coverity 274112 unintended sign extension

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This commit is contained in:
Philippe Teuwen
2020-05-14 00:31:12 +02:00
parent 6cadbbc3e7
commit c43b9085f9
1 changed files with 6 additions and 3 deletions
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9
armsrc/hitagS.c
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@@ -889,9 +889,12 @@ void SimulateHitagSTag(bool tag_mem_supplied, uint8_t *data) {
}
tag.uid = ((tag.pages[0][3]) << 24) | ((tag.pages[0][2]) << 16) | ((tag.pages[0][1]) << 8) | tag.pages[0][0];
tag.key = ((tag.pages[3][3]) << 24) | ((tag.pages[3][2]) << 16) | ((tag.pages[3][1]) << 8) | tag.pages[3][0];
tag.key <<= 16;
tag.key += ((tag.pages[2][3]) << 8) + tag.pages[2][2];
tag.key = (((uint64_t)tag.pages[3][3]) << 40) |
(((uint64_t)tag.pages[3][2]) << 32) |
(((uint64_t)tag.pages[3][1]) << 24) |
(((uint64_t)tag.pages[3][0]) << 16) |
(((uint64_t)tag.pages[2][3]) << 8) |
(((uint64_t)tag.pages[2][2]));
tag.pwdl0 = tag.pages[2][0];
tag.pwdl1 = tag.pages[2][1];
tag.pwdh0 = tag.pages[1][3];