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Simplify and fix for AddAssign64 when WOLFSSL_MAX_32BIT is not defined #894

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Merged
ejohnstown merged 1 commit into from
Apr 2, 2026
Merged

Simplify and fix for AddAssign64 when WOLFSSL_MAX_32BIT is not defined #894

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15 changes: 4 additions & 11 deletions src/internal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -17478,21 +17478,14 @@ int wolfSSH_oct2dec(WOLFSSH* ssh, byte* oct, word32 octSz)
return ret;
}

#ifndef WOLFSSL_MAX_32BIT
#define WOLFSSL_MAX_32BIT INT_MAX
#endif

/* addend1 += addend2 */
void AddAssign64(word32* addend1, word32 addend2)
{
if (addend1[0] > (WOLFSSL_MAX_32BIT - addend2)) {
addend1[1]++;
word32 lo = addend1[0];

/* -1 to account for roll over digit */
addend1[0] = addend2 - (WOLFSSL_MAX_32BIT- addend1[0]) - 1;
}
else {
addend1[0] += addend2;
addend1[0] += addend2;
if (addend1[0] < lo) {
addend1[1]++;
}
}

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