| 330 | } |
| 331 | |
| 332 | void URLEncode |
| 333 | ( |
| 334 | const std::string& s, |
| 335 | std::string& enc |
| 336 | ) |
| 337 | { |
| 338 | const size_t len = s.length(); |
| 339 | char buf[3]; |
| 340 | buf[0] = '%'; |
| 341 | for(size_t i = 0; i < len; i++) |
| 342 | { |
| 343 | const unsigned char c = s[i]; |
| 344 | // from https://www.ietf.org/rfc/rfc1738.txt, page 3 |
| 345 | // with some changes for compatibility |
| 346 | if(isalnum(c) || c == '-' || c == '_' || c == '.' || c == ',') |
| 347 | enc += (char)c; |
| 348 | else if(c == ' ') |
| 349 | enc += '+'; |
| 350 | else |
| 351 | { |
| 352 | unsigned nib = (c >> 4) & 0xf; |
| 353 | buf[1] = nib < 10 ? '0' + nib : 'a' + (nib-10); |
| 354 | nib = c & 0xf; |
| 355 | buf[2] = nib < 10 ? '0' + nib : 'a' + (nib-10); |
| 356 | enc.append(&buf[0], 3); |
| 357 | } |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | static bool _SetNonBlocking |
| 362 | ( |