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fix base64 decode white space loop

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toddouska
2013-03-04 11:36:07 -08:00
parent b4584e0a93
commit 2667b8b542
1 changed files with 6 additions and 4 deletions
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6
ctaocrypt/src/coding.c
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@@ -104,17 +104,19 @@ int Base64_Decode(const byte* in, word32 inLen, byte* out, word32* outLen)
break; break;
inLen -= 4; inLen -= 4;
if (in[j] == ' ' || in[j] == '\r' || in[j] == '\n') { if (inLen && (in[j] == ' ' || in[j] == '\r' || in[j] == '\n')) {
byte endLine = in[j++]; byte endLine = in[j++];
inLen--; inLen--;
while (endLine == ' ') { /* allow trailing whitespace */ while (inLen && endLine == ' ') { /* allow trailing whitespace */
endLine = in[j++]; endLine = in[j++];
inLen--; inLen--;
} }
if (endLine == '\r') { if (endLine == '\r') {
if (inLen) {
endLine = in[j++]; endLine = in[j++];
inLen--; inLen--;
} }
}
if (endLine != '\n') { if (endLine != '\n') {
CYASSL_MSG("Bad end of line in Base64 Decode"); CYASSL_MSG("Bad end of line in Base64 Decode");
return ASN_INPUT_E; return ASN_INPUT_E;