Increment by three, not one, after successfully decoding a character.
Add a boundary check. git-svn-id: svn+ssh://svn.openpam.org/svn/openpam/trunk@858 185d5e19-27fe-0310-9dcf-9bff6b9f3609
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@ -58,12 +58,13 @@ oath_uri_decode(const char *in, size_t ilen, char *out, size_t olen)
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if (ilen == 0)
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ilen = strlen(in);
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for (ipos = opos = 0; ipos < ilen && in[ipos] != '\0'; ++ipos, ++opos) {
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if (in[ipos] == '%' &&
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if (in[ipos] == '%' && ipos + 2 < ilen &&
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is_xdigit(in[ipos + 1]) && is_xdigit(in[ipos + 2])) {
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if (out != NULL && opos < olen - 1)
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out[opos] = unhex(in[ipos + 1]) * 16 +
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unhex(in[ipos + 2]);
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ilen += 2;
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ipos += 2;
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} else {
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if (out != NULL && opos < olen - 1)
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out[opos] = in[ipos];
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