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stronger base64 validation

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This commit is contained in:
cathugger 2018-07-12 11:56:43 +00:00
parent 832ff7bdfb
commit ee0257dc88
1 changed files with 2 additions and 2 deletions
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4
base64_from.c
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@ -84,10 +84,10 @@ int base64_valid(const char *src,size_t *count)
for (p = src;base64f[(u8)*p] != 0xFF;++p)
;
for (;*p == '=';++p)
for (;((size_t) (p - src)) % 4 != 0 && *p == '=';++p)
;
if (count)
*count = (size_t) (p - src);
return !*p;
return !*p && ((size_t) (p - src)) % 4 == 0;
}