thirdparty/scummvm
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COMMON: Do not crash on attempt to punyencode empty strings

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Eugene Sandulenko 2023-03-03 23:20:42 +01:00
parent 136d1b23c0
commit 9fcb33a5e6
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1 changed files with 6 additions and 0 deletions
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6
common/punycode.cpp
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@ -132,6 +132,9 @@ String punycode_encode(const U32String &src) {
size_t h = 0, si; size_t h = 0, si;
String dst = "xn--"; String dst = "xn--";
if (!srclen)
return src;
for (si = 0; si < srclen; si++) { for (si = 0; si < srclen; si++) {
if (src[si] < 128) { if (src[si] < 128) {
dst += src[si]; dst += src[si];
@ -204,6 +207,9 @@ bool punycode_hasprefix(const String &src) {
} }
bool punycode_needEncode(const String &src) { bool punycode_needEncode(const String &src) {
if (!src.size())
return false;
for (uint si = 0; si < src.size(); si++) { for (uint si = 0; si < src.size(); si++) {
if (src[si] & 0x80 || src[si] < 0x20 || strchr(SPECIAL_SYMBOLS, src[si])) { if (src[si] & 0x80 || src[si] < 0x20 || strchr(SPECIAL_SYMBOLS, src[si])) {
return true; return true;