/* * This file Copyright (C) 2008-2014 Mnemosyne LLC * * It may be used under the GNU GPL versions 2 or 3 * or any future license endorsed by Mnemosyne LLC. * */ /* thanks amc1! */ #include /* isprint() */ #include /* strtol() */ #include #include "transmission.h" #include "clients.h" #include "utils.h" /* tr_snprintf(), tr_strlcpy() */ static int charint(uint8_t ch) { if ('0' <= ch && ch <= '9') { return ch - '0'; } if ('A' <= ch && ch <= 'Z') { return 10 + ch - 'A'; } if ('a' <= ch && ch <= 'z') { return 36 + ch - 'a'; } return 0; } static bool getShadowInt(uint8_t ch, int* setme) { char const* str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-"; char const* pch = strchr(str, ch); if (pch == NULL) { return false; } *setme = pch - str; return true; } static bool getFDMInt(uint8_t ch, int* setme) { char const* str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_.!~*()"; char const* pch = strchr(str, ch); if (pch == NULL) { return false; } *setme = pch - str; return true; } static int strint(void const* pch, int span) { char tmp[64]; memcpy(tmp, pch, span); tmp[span] = '\0'; return strtol(tmp, NULL, 0); } static char const* getMnemonicEnd(uint8_t ch) { switch (ch) { case 'b': case 'B': return " (Beta)"; case 'd': return " (Debug)"; case 'x': case 'X': case 'Z': return " (Dev)"; default: return ""; } } static void three_digits(char* buf, size_t buflen, char const* name, uint8_t const* digits) { tr_snprintf(buf, buflen, "%s %d.%d.%d", name, charint(digits[0]), charint(digits[1]), charint(digits[2])); } static void four_digits(char* buf, size_t buflen, char const* name, uint8_t const* digits) { tr_snprintf(buf, buflen, "%s %d.%d.%d.%d", name, charint(digits[0]), charint(digits[1]), charint(digits[2]), charint(digits[3])); } static void two_major_two_minor(char* buf, size_t buflen, char const* name, uint8_t const* digits) { tr_snprintf(buf, buflen, "%s %d.%02d", name, strint(digits, 2), strint(digits + 2, 2)); } static void no_version(char* buf, size_t buflen, char const* name) { tr_strlcpy(buf, name, buflen); } static void mainline_style(char* buf, size_t buflen, char const* name, uint8_t const* id) { if (id[4] == '-' && id[6] == '-') { tr_snprintf(buf, buflen, "%s %c.%c.%c", name, id[1], id[3], id[5]); } else if (id[5] == '-') { tr_snprintf(buf, buflen, "%s %c.%c%c.%c", name, id[1], id[3], id[4], id[6]); } } static bool isMainlineStyle(uint8_t const* peer_id) { /** * One of the following styles will be used: * Mx-y-z-- * Mx-yy-z- */ return peer_id[2] == '-' && peer_id[7] == '-' && (peer_id[4] == '-' || peer_id[5] == '-'); } static bool decodeBitCometClient(char* buf, size_t buflen, uint8_t const* id) { char const* chid = (char*)id; bool is_bitlord; int major; int minor; char const* name; char const* mod = NULL; if (strncmp(chid, "exbc", 4) == 0) { mod = ""; } else if (strncmp(chid, "FUTB", 4) == 0) { mod = " (Solidox Mod) "; } else if (strncmp(chid, "xUTB", 4) == 0) { mod = " (Mod 2) "; } else { return false; } is_bitlord = strncmp(chid + 6, "LORD", 4) == 0; name = (is_bitlord) ? "BitLord " : "BitComet "; major = id[4]; minor = id[5]; /** * Bitcomet, and older versions of BitLord, are of the form x.yy. * Bitcoment 1.0 and onwards are of the form x.y. */ if (is_bitlord && major > 0) { tr_snprintf(buf, buflen, "%s%s%d.%d", name, mod, major, minor); } else { tr_snprintf(buf, buflen, "%s%s%d.%02d", name, mod, major, minor); } return true; } char* tr_clientForId(char* buf, size_t buflen, void const* id_in) { uint8_t const* id = id_in; char const* chid = (char*)id; *buf = '\0'; if (id == NULL) { return buf; } /* Azureus-style */ if (id[0] == '-' && id[7] == '-') { if (strncmp(chid + 1, "TR", 2) == 0) { if (strncmp(chid + 3, "000", 3) == 0) /* very old client style: -TR0006- is 0.6 */ { tr_snprintf(buf, buflen, "Transmission 0.%c", id[6]); } else if (strncmp(chid + 3, "00", 2) == 0) /* previous client style: -TR0072- is 0.72 */ { tr_snprintf(buf, buflen, "Transmission 0.%02d", strint(id + 5, 2)); } else /* current client style: -TR111Z- is 1.11+ */ { tr_snprintf(buf, buflen, "Transmission %d.%02d%s", strint(id + 3, 1), strint(id + 4, 2), (id[6] == 'Z' || id[6] == 'X') ? "+" : ""); } } else if (strncmp(chid + 1, "UT", 2) == 0) { tr_snprintf(buf, buflen, "\xc2\xb5Torrent %d.%d.%d%s", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 1), getMnemonicEnd(id[6])); } else if (strncmp(chid + 1, "BT", 2) == 0) { tr_snprintf(buf, buflen, "BitTorrent %d.%d.%d%s", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 1), getMnemonicEnd(id[6])); } else if (strncmp(chid + 1, "UM", 2) == 0) { tr_snprintf(buf, buflen, "\xc2\xb5Torrent Mac %d.%d.%d%s", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 1), getMnemonicEnd(id[6])); } else if (strncmp(chid + 1, "UE", 2) == 0) { tr_snprintf(buf, buflen, "\xc2\xb5Torrent Embedded %d.%d.%d%s", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 1), getMnemonicEnd(id[6])); } /* */ else if (strncmp(chid + 1, "AZ", 2) == 0) { if (id[3] > '3' || (id[3] == '3' && id[4] >= '1')) /* Vuze starts at version 3.1.0.0 */ { four_digits(buf, buflen, "Vuze", id + 3); } else { four_digits(buf, buflen, "Azureus", id + 3); } } /* */ else if (strncmp(chid + 1, "KT", 2) == 0) { if (id[5] == 'D') { tr_snprintf(buf, buflen, "KTorrent %d.%d Dev %d", charint(id[3]), charint(id[4]), charint(id[6])); } else if (id[5] == 'R') { tr_snprintf(buf, buflen, "KTorrent %d.%d RC %d", charint(id[3]), charint(id[4]), charint(id[6])); } else { three_digits(buf, buflen, "KTorrent", id + 3); } } /* */ else if (strncmp(chid + 1, "AG", 2) == 0) { four_digits(buf, buflen, "Ares", id + 3); } else if (strncmp(chid + 1, "AR", 2) == 0) { four_digits(buf, buflen, "Arctic", id + 3); } else if (strncmp(chid + 1, "AT", 2) == 0) { four_digits(buf, buflen, "Artemis", id + 3); } else if (strncmp(chid + 1, "AV", 2) == 0) { four_digits(buf, buflen, "Avicora", id + 3); } else if (strncmp(chid + 1, "BB", 2) == 0) { four_digits(buf, buflen, "BitBuddy", id + 3); } else if (strncmp(chid + 1, "BE", 2) == 0) { four_digits(buf, buflen, "BitTorrent SDK", id + 3); } else if (strncmp(chid + 1, "BG", 2) == 0) { four_digits(buf, buflen, "BTGetit", id + 3); } else if (strncmp(chid + 1, "BH", 2) == 0) { four_digits(buf, buflen, "BitZilla", id + 3); } else if (strncmp(chid + 1, "BM", 2) == 0) { four_digits(buf, buflen, "BitMagnet", id + 3); } else if (strncmp(chid + 1, "BP", 2) == 0) { four_digits(buf, buflen, "BitTorrent Pro (Azureus + Spyware)", id + 3); } else if (strncmp(chid + 1, "BX", 2) == 0) { four_digits(buf, buflen, "BittorrentX", id + 3); } else if (strncmp(chid + 1, "bk", 2) == 0) { four_digits(buf, buflen, "BitKitten (libtorrent)", id + 3); } else if (strncmp(chid + 1, "BS", 2) == 0) { four_digits(buf, buflen, "BTSlave", id + 3); } else if (strncmp(chid + 1, "BW", 2) == 0) { four_digits(buf, buflen, "BitWombat", id + 3); } else if (strncmp(chid + 1, "BX", 2) == 0) { four_digits(buf, buflen, "BittorrentX", id + 3); } else if (strncmp(chid + 1, "EB", 2) == 0) { four_digits(buf, buflen, "EBit", id + 3); } else if (strncmp(chid + 1, "DE", 2) == 0) { four_digits(buf, buflen, "Deluge", id + 3); } else if (strncmp(chid + 1, "DP", 2) == 0) { four_digits(buf, buflen, "Propagate Data Client", id + 3); } else if (strncmp(chid + 1, "FC", 2) == 0) { four_digits(buf, buflen, "FileCroc", id + 3); } else if (strncmp(chid + 1, "FT", 2) == 0) { four_digits(buf, buflen, "FoxTorrent/RedSwoosh", id + 3); } else if (strncmp(chid + 1, "GR", 2) == 0) { four_digits(buf, buflen, "GetRight", id + 3); } else if (strncmp(chid + 1, "GS", 2) == 0) { four_digits(buf, buflen, "GSTorrent", id + 3); } else if (strncmp(chid + 1, "HK", 2) == 0) { four_digits(buf, buflen, "Hekate", id + 3); } else if (strncmp(chid + 1, "HN", 2) == 0) { four_digits(buf, buflen, "Hydranode", id + 3); } else if (strncmp(chid + 1, "KG", 2) == 0) { four_digits(buf, buflen, "KGet", id + 3); } else if (strncmp(chid + 1, "LC", 2) == 0) { four_digits(buf, buflen, "LeechCraft", id + 3); } else if (strncmp(chid + 1, "LH", 2) == 0) { four_digits(buf, buflen, "LH-ABC", id + 3); } else if (strncmp(chid + 1, "NX", 2) == 0) { four_digits(buf, buflen, "Net Transport", id + 3); } else if (strncmp(chid + 1, "MK", 2) == 0) { four_digits(buf, buflen, "Meerkat", id + 3); } else if (strncmp(chid + 1, "MO", 2) == 0) { four_digits(buf, buflen, "MonoTorrent", id + 3); } else if (strncmp(chid + 1, "MR", 2) == 0) { four_digits(buf, buflen, "Miro", id + 3); } else if (strncmp(chid + 1, "MT", 2) == 0) { four_digits(buf, buflen, "Moonlight", id + 3); } else if (strncmp(chid + 1, "OS", 2) == 0) { four_digits(buf, buflen, "OneSwarm", id + 3); } else if (strncmp(chid + 1, "OT", 2) == 0) { four_digits(buf, buflen, "OmegaTorrent", id + 3); } else if (strncmp(chid + 1, "PD", 2) == 0) { four_digits(buf, buflen, "Pando", id + 3); } else if (strncmp(chid + 1, "QD", 2) == 0) { four_digits(buf, buflen, "QQDownload", id + 3); } else if (strncmp(chid + 1, "RS", 2) == 0) { four_digits(buf, buflen, "Rufus", id + 3); } else if (strncmp(chid + 1, "RT", 2) == 0) { four_digits(buf, buflen, "Retriever", id + 3); } else if (strncmp(chid + 1, "RZ", 2) == 0) { four_digits(buf, buflen, "RezTorrent", id + 3); } else if (strncmp(chid + 1, "SD", 2) == 0) { four_digits(buf, buflen, "Thunder", id + 3); } else if (strncmp(chid + 1, "SM", 2) == 0) { four_digits(buf, buflen, "SoMud", id + 3); } else if (strncmp(chid + 1, "SS", 2) == 0) { four_digits(buf, buflen, "SwarmScope", id + 3); } else if (strncmp(chid + 1, "ST", 2) == 0) { four_digits(buf, buflen, "SymTorrent", id + 3); } else if (strncmp(chid + 1, "SZ", 2) == 0) { four_digits(buf, buflen, "Shareaza", id + 3); } else if (strncmp(chid + 1, "S~", 2) == 0) { four_digits(buf, buflen, "Shareaza", id + 3); } else if (strncmp(chid + 1, "st", 2) == 0) { four_digits(buf, buflen, "SharkTorrent", id + 3); } else if (strncmp(chid + 1, "TN", 2) == 0) { four_digits(buf, buflen, "Torrent .NET", id + 3); } else if (strncmp(chid + 1, "TS", 2) == 0) { four_digits(buf, buflen, "TorrentStorm", id + 3); } else if (strncmp(chid + 1, "TT", 2) == 0) { four_digits(buf, buflen, "TuoTu", id + 3); } else if (strncmp(chid + 1, "UL", 2) == 0) { four_digits(buf, buflen, "uLeecher!", id + 3); } else if (strncmp(chid + 1, "VG", 2) == 0) { four_digits(buf, buflen, "Vagaa", id + 3); } else if (strncmp(chid + 1, "WT", 2) == 0) { four_digits(buf, buflen, "BitLet", id + 3); } else if (strncmp(chid + 1, "WY", 2) == 0) { four_digits(buf, buflen, "FireTorrent", id + 3); } else if (strncmp(chid + 1, "XL", 2) == 0) { four_digits(buf, buflen, "Xunlei", id + 3); } else if (strncmp(chid + 1, "XS", 2) == 0) { four_digits(buf, buflen, "XSwifter", id + 3); } else if (strncmp(chid + 1, "XT", 2) == 0) { four_digits(buf, buflen, "XanTorrent", id + 3); } else if (strncmp(chid + 1, "XX", 2) == 0) { four_digits(buf, buflen, "Xtorrent", id + 3); } else if (strncmp(chid + 1, "ZT", 2) == 0) { four_digits(buf, buflen, "Zip Torrent", id + 3); } else if (strncmp(chid + 1, "ZO", 2) == 0) { four_digits(buf, buflen, "Zona", id + 3); } /* */ else if (strncmp(chid + 1, "AG", 2) == 0) { three_digits(buf, buflen, "Ares", id + 3); } else if (strncmp(chid + 1, "A~", 2) == 0) { three_digits(buf, buflen, "Ares", id + 3); } else if (strncmp(chid + 1, "ES", 2) == 0) { three_digits(buf, buflen, "Electric Sheep", id + 3); } else if (strncmp(chid + 1, "HL", 2) == 0) { three_digits(buf, buflen, "Halite", id + 3); } else if (strncmp(chid + 1, "LT", 2) == 0) { three_digits(buf, buflen, "libtorrent (Rasterbar)", id + 3); } else if (strncmp(chid + 1, "lt", 2) == 0) { three_digits(buf, buflen, "libTorrent (Rakshasa)", id + 3); } else if (strncmp(chid + 1, "MP", 2) == 0) { three_digits(buf, buflen, "MooPolice", id + 3); } else if (strncmp(chid + 1, "pb", 2) == 0) { three_digits(buf, buflen, "pbTorrent", id + 3); } else if (strncmp(chid + 1, "TT", 2) == 0) { three_digits(buf, buflen, "TuoTu", id + 3); } else if (strncmp(chid + 1, "qB", 2) == 0) { three_digits(buf, buflen, "qBittorrent", id + 3); } /* */ else if (strncmp(chid + 1, "AX", 2) == 0) { two_major_two_minor(buf, buflen, "BitPump", id + 3); } else if (strncmp(chid + 1, "BC", 2) == 0) { two_major_two_minor(buf, buflen, "BitComet", id + 3); } else if (strncmp(chid + 1, "CD", 2) == 0) { two_major_two_minor(buf, buflen, "Enhanced CTorrent", id + 3); } else if (strncmp(chid + 1, "LP", 2) == 0) { two_major_two_minor(buf, buflen, "Lphant", id + 3); } /* */ else if (strncmp(chid + 1, "BF", 2) == 0) { no_version(buf, buflen, "BitFlu"); } else if (strncmp(chid + 1, "LW", 2) == 0) { no_version(buf, buflen, "LimeWire"); } /* */ else if (strncmp(chid + 1, "BB", 2) == 0) { tr_snprintf(buf, buflen, "BitBuddy %c.%c%c%c", id[3], id[4], id[5], id[6]); } else if (strncmp(chid + 1, "BR", 2) == 0) { tr_snprintf(buf, buflen, "BitRocket %c.%c (%c%c)", id[3], id[4], id[5], id[6]); } else if (strncmp(chid + 1, "CT", 2) == 0) { tr_snprintf(buf, buflen, "CTorrent %d.%d.%02d", charint(id[3]), charint(id[4]), strint(id + 5, 2)); } else if (strncmp(chid + 1, "XC", 2) == 0 || strncmp(chid + 1, "XX", 2) == 0) { tr_snprintf(buf, buflen, "Xtorrent %d.%d (%d)", charint(id[3]), charint(id[4]), strint(id + 5, 2)); } else if (strncmp(chid + 1, "BOW", 3) == 0) { if (strncmp(&chid[4], "A0B", 3) == 0) { tr_snprintf(buf, buflen, "Bits on Wheels 1.0.5"); } else if (strncmp(&chid[4], "A0C", 3) == 0) { tr_snprintf(buf, buflen, "Bits on Wheels 1.0.6"); } else { tr_snprintf(buf, buflen, "Bits on Wheels %c.%c.%c", id[4], id[5], id[5]); } } else if (strncmp(chid + 1, "MG", 2) == 0) { tr_snprintf(buf, buflen, "MediaGet %d.%02d", charint(id[3]), charint(id[4])); } else if (strncmp(chid + 1, "XF", 2) == 0) { if (chid[6] == '0') { three_digits(buf, buflen, "Xfplay", id + 3); } else { tr_snprintf(buf, buflen, "Xfplay %d.%d.%d", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 2)); } } else if (strncmp(chid + 1, "PI", 2) == 0) { tr_snprintf(buf, buflen, "PicoTorrent %d.%d%d.%d", charint(id[3]), charint(id[4]), charint(id[5]), charint(id[6])); } else if (strncmp(chid + 1, "FD", 2) == 0) { int c; if (getFDMInt(id[5], &c)) { tr_snprintf(buf, buflen, "Free Download Manager %d.%d.%d", charint(id[3]), charint(id[4]), c); } else { tr_snprintf(buf, buflen, "Free Download Manager %d.%d.x", charint(id[3]), charint(id[4])); } } else if (strncmp(chid + 1, "FL", 2) == 0) { tr_snprintf(buf, buflen, "Folx %d.x", charint(id[3])); } else if (strncmp(chid + 1, "BN", 2) == 0) { tr_snprintf(buf, buflen, "Baidu Netdisk"); } if (*buf != '\0') { return buf; } } /* uTorrent will replace the trailing dash with an extra digit for longer version numbers */ if (id[0] == '-') { if (strncmp(chid + 1, "UT", 2) == 0) { tr_snprintf(buf, buflen, "\xc2\xb5Torrent %d.%d.%d%s", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 2), getMnemonicEnd(id[7])); } else if (strncmp(chid + 1, "UM", 2) == 0) { tr_snprintf(buf, buflen, "\xc2\xb5Torrent Mac %d.%d.%d%s", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 2), getMnemonicEnd(id[7])); } else if (strncmp(chid + 1, "UE", 2) == 0) { tr_snprintf(buf, buflen, "\xc2\xb5Torrent Embedded %d.%d.%d%s", strint(id + 3, 1), strint(id + 4, 1), strint(id + 5, 2), getMnemonicEnd(id[7])); } if (*buf != '\0') { return buf; } } /* Mainline */ if (isMainlineStyle(id)) { if (*id == 'M') { mainline_style(buf, buflen, "BitTorrent", id); } if (*id == 'Q') { mainline_style(buf, buflen, "Queen Bee", id); } if (*buf != '\0') { return buf; } } if (decodeBitCometClient(buf, buflen, id)) { return buf; } /* Clients with no version */ if (strncmp(chid, "AZ2500BT", 8) == 0) { no_version(buf, buflen, "BitTyrant (Azureus Mod)"); } else if (strncmp(chid, "LIME", 4) == 0) { no_version(buf, buflen, "Limewire"); } else if (strncmp(chid, "martini", 7) == 0) { no_version(buf, buflen, "Martini Man"); } else if (strncmp(chid, "Pando", 5) == 0) { no_version(buf, buflen, "Pando"); } else if (strncmp(chid, "a00---0", 7) == 0) { no_version(buf, buflen, "Swarmy"); } else if (strncmp(chid, "a02---0", 7) == 0) { no_version(buf, buflen, "Swarmy"); } else if (strncmp(chid, "-G3", 3) == 0) { no_version(buf, buflen, "G3 Torrent"); } else if (strncmp(chid, "10-------", 9) == 0) { no_version(buf, buflen, "JVtorrent"); } else if (strncmp(chid, "346-", 4) == 0) { no_version(buf, buflen, "TorrentTopia"); } else if (strncmp(chid, "eX", 2) == 0) { no_version(buf, buflen, "eXeem"); } else if (strncmp(chid, "aria2-", 6) == 0) { no_version(buf, buflen, "aria2"); } else if (strncmp(chid, "-WT-", 4) == 0) { no_version(buf, buflen, "BitLet"); } else if (strncmp(chid, "-FG", 3) == 0) { two_major_two_minor(buf, buflen, "FlashGet", id + 3); } /* Everything else */ else if (strncmp(chid, "S3", 2) == 0 && id[2] == '-' && id[4] == '-' && id[6] == '-') { tr_snprintf(buf, buflen, "Amazon S3 %c.%c.%c", id[3], id[5], id[7]); } else if (strncmp(chid, "OP", 2) == 0) { tr_snprintf(buf, buflen, "Opera (Build %c%c%c%c)", id[2], id[3], id[4], id[5]); } else if (strncmp(chid, "-ML", 3) == 0) { tr_snprintf(buf, buflen, "MLDonkey %c%c%c%c%c", id[3], id[4], id[5], id[6], id[7]); } else if (strncmp(chid, "DNA", 3) == 0) { tr_snprintf(buf, buflen, "BitTorrent DNA %d.%d.%d", strint(id + 3, 2), strint(id + 5, 2), strint(id + 7, 2)); } else if (strncmp(chid, "Plus", 4) == 0) { tr_snprintf(buf, buflen, "Plus! v2 %c.%c%c", id[4], id[5], id[6]); } else if (strncmp(chid, "XBT", 3) == 0) { tr_snprintf(buf, buflen, "XBT Client %c.%c.%c%s", id[3], id[4], id[5], getMnemonicEnd(id[6])); } else if (strncmp(chid, "Mbrst", 5) == 0) { tr_snprintf(buf, buflen, "burst! %c.%c.%c", id[5], id[7], id[9]); } else if (strncmp(chid, "btpd", 4) == 0) { tr_snprintf(buf, buflen, "BT Protocol Daemon %c%c%c", id[5], id[6], id[7]); } else if (strncmp(chid, "BLZ", 3) == 0) { tr_snprintf(buf, buflen, "Blizzard Downloader %d.%d", id[3] + 1, id[4]); } else if (strncmp(chid, "-SP", 3) == 0) { three_digits(buf, buflen, "BitSpirit", id + 3); } else if ('\0' == id[0] && strncmp(chid + 2, "BS", 2) == 0) { tr_snprintf(buf, buflen, "BitSpirit %u", (id[1] == 0 ? 1 : id[1])); } else if (strncmp(chid, "QVOD", 4) == 0) { four_digits(buf, buflen, "QVOD", id + 4); } else if (strncmp(chid, "-NE", 3) == 0) { four_digits(buf, buflen, "BT Next Evolution", id + 3); } else if (strncmp(chid, "TIX", 3) == 0) { two_major_two_minor(buf, buflen, "Tixati", id + 3); } /* Shad0w-style */ if (*buf == '\0') { int a; int b; int c; if (strchr("AOQRSTU", id[0]) != NULL && getShadowInt(id[1], &a) && getShadowInt(id[2], &b) && getShadowInt(id[3], &c)) { char const* name = NULL; switch (id[0]) { case 'A': name = "ABC"; break; case 'O': name = "Osprey"; break; case 'Q': name = "BTQueue"; break; case 'R': name = "Tribler"; break; case 'S': name = "Shad0w"; break; case 'T': name = "BitTornado"; break; case 'U': name = "UPnP NAT Bit Torrent"; break; } if (name != NULL) { tr_snprintf(buf, buflen, "%s %d.%d.%d", name, a, b, c); return buf; } } } /* No match */ if (*buf == '\0') { char out[32]; char* walk = out; for (size_t i = 0; i < 8; ++i) { char const c = chid[i]; if (isprint((unsigned char)c)) { *walk++ = c; } else { tr_snprintf(walk, out + sizeof(out) - walk, "%%%02X", (unsigned int)c); walk += 3; } } *walk = '\0'; tr_strlcpy(buf, out, buflen); } return buf; }