| 65 | } |
| 66 | |
| 67 | size_t encode(char * buffer, size_t buflen, |
| 68 | const char * source, size_t srclen, |
| 69 | const char * illegal, char escape) { |
| 70 | RTC_DCHECK(buffer); // TODO(grunell): estimate output size |
| 71 | if (buflen <= 0) |
| 72 | return 0; |
| 73 | |
| 74 | size_t srcpos = 0, bufpos = 0; |
| 75 | while ((srcpos < srclen) && (bufpos + 1 < buflen)) { |
| 76 | char ch = source[srcpos++]; |
| 77 | if ((ch != escape) && !::strchr(illegal, ch)) { |
| 78 | buffer[bufpos++] = ch; |
| 79 | } else if (bufpos + 3 >= buflen) { |
| 80 | break; |
| 81 | } else { |
| 82 | buffer[bufpos+0] = escape; |
| 83 | buffer[bufpos+1] = hex_encode((static_cast<unsigned char>(ch) >> 4) & 0xF); |
| 84 | buffer[bufpos+2] = hex_encode((static_cast<unsigned char>(ch) ) & 0xF); |
| 85 | bufpos += 3; |
| 86 | } |
| 87 | } |
| 88 | buffer[bufpos] = '\0'; |
| 89 | return bufpos; |
| 90 | } |
| 91 | |
| 92 | size_t decode(char * buffer, size_t buflen, |
| 93 | const char * source, size_t srclen, |
no test coverage detected