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Fix a null pointer exception in modp_b64_decode() #56

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Fix a null pointer exception in modp_b64_decode() #56

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6 changes: 3 additions & 3 deletions src/modp_b64.c
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Original file line number Diff line number Diff line change
Expand Up @@ -166,6 +166,9 @@ size_t modp_b64_decode(char* dest, const char* src, size_t len)

size_t modp_b64_decode(char* dest, const char* src, size_t len)
{
if (len == 0)
return 0;

size_t i;
size_t leftover;
size_t chunks;
Expand All @@ -176,9 +179,6 @@ size_t modp_b64_decode(char* dest, const char* src, size_t len)
const uint32_t* srcInt = (const uint32_t*)src;
uint32_t y = *srcInt++;

if (len == 0)
return 0;

#ifdef DOPAD
/*
* if padding is used, then the message must be at least
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