diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/common/modes.c | 126 |
1 files changed, 96 insertions, 30 deletions
diff --git a/src/common/modes.c b/src/common/modes.c index 3c0ac8ab..82b466cb 100644 --- a/src/common/modes.c +++ b/src/common/modes.c @@ -785,6 +785,64 @@ handle_mode (server * serv, char *word[], char *word_eol[], mode_print_grouped (sess, nick, &mr, tags_data); } +static char +hex_to_chr(char chr) +{ + return g_ascii_isdigit (chr) ? chr - '0' : g_ascii_tolower (chr) - 'a' + 10; +} + +static void +parse_005_token (const char *token, char **name, char **value, gboolean *adding) +{ + char *toksplit, *valuecurr; + size_t idx; + + if (token[0] == '-') + { + *adding = FALSE; + token++; + } else + { + *adding = TRUE; + } + + toksplit = strchr (token, '='); + if (toksplit && *toksplit++) + { + /* The token has a value; parse any escape codes. */ + *name = g_strndup (token, toksplit - token - 1); + *value = g_malloc (strlen (toksplit) + 1); + valuecurr = *value; + + while (*toksplit) + { + if (toksplit[0] == '\\') + { + /** If it's a malformed escape then just skip it. */ + if (toksplit[1] == 'x' && g_ascii_isxdigit (toksplit[2]) && g_ascii_isxdigit (toksplit[3])) + *valuecurr++ = hex_to_chr (toksplit[2]) << 4 | hex_to_chr (toksplit[3]); + + for (idx = 0; idx < 4; ++idx) + { + /* We need to do this to avoid jumping past the end of the array. */ + if (*toksplit) + toksplit++; + } + } else + { + /** Non-escape characters can be copied as is. */ + *valuecurr++ = *toksplit++; + } + } + *valuecurr++ = 0; + } else + { + /* The token has no value; store a dummy value instead. */ + *name = g_strdup (token); + *value = g_strdup (""); + } +} + /* handle the 005 numeric */ void @@ -792,84 +850,92 @@ inbound_005 (server * serv, char *word[], const message_tags_data *tags_data) { int w; char *pre; + char *tokname, *tokvalue; + gboolean tokadding; w = 4; /* start at the 4th word */ while (w < PDIWORDS && *word[w]) { - if (strncmp (word[w], "MODES=", 6) == 0) + if (word[w][0] == ':') + break; // :are supported by this server + + parse_005_token(word[w], &tokname, &tokvalue, &tokadding); + if (g_strcmp0 (tokname, "MODES") == 0) { - serv->modes_per_line = atoi (word[w] + 6); - } else if (strncmp (word[w], "CHANTYPES=", 10) == 0) + serv->modes_per_line = atoi (tokvalue); + } else if (g_strcmp0 (tokname, "CHANTYPES") == 0) { g_free (serv->chantypes); - serv->chantypes = g_strdup (word[w] + 10); - } else if (strncmp (word[w], "CHANMODES=", 10) == 0) + serv->chantypes = g_strdup (tokvalue); + } else if (g_strcmp0 (tokname, "CHANMODES") == 0) { g_free (serv->chanmodes); - serv->chanmodes = g_strdup (word[w] + 10); - } else if (strncmp (word[w], "PREFIX=", 7) == 0) + serv->chanmodes = g_strdup (tokvalue); + } else if (g_strcmp0 (tokname, "PREFIX") == 0) { - pre = strchr (word[w] + 7, ')'); + pre = strchr (tokvalue, ')'); if (pre) { pre[0] = 0; /* NULL out the ')' */ g_free (serv->nick_prefixes); g_free (serv->nick_modes); serv->nick_prefixes = g_strdup (pre + 1); - serv->nick_modes = g_strdup (word[w] + 8); + serv->nick_modes = g_strdup (tokvalue); } else { /* bad! some ircds don't give us the modes. */ /* in this case, we use it only to strip /NAMES */ serv->bad_prefix = TRUE; g_free (serv->bad_nick_prefixes); - serv->bad_nick_prefixes = g_strdup (word[w] + 7); + serv->bad_nick_prefixes = g_strdup (tokvalue); } - } else if (strncmp (word[w], "WATCH=", 6) == 0) + } else if (g_strcmp0 (tokname, "WATCH") == 0) { - serv->supports_watch = TRUE; - } else if (strncmp (word[w], "MONITOR=", 8) == 0) + serv->supports_watch = tokadding; + } else if (g_strcmp0 (tokname, "MONITOR") == 0) { - serv->supports_monitor = TRUE; - } else if (strncmp (word[w], "NETWORK=", 8) == 0) + serv->supports_monitor = tokadding; + } else if (g_strcmp0 (tokname, "NETWORK") == 0) { - if (serv->server_session->type == SESS_SERVER) + if (serv->server_session->type == SESS_SERVER && strlen (tokvalue)) { - safe_strcpy (serv->server_session->channel, word[w] + 8, CHANLEN); + safe_strcpy (serv->server_session->channel, tokvalue, CHANLEN); fe_set_channel (serv->server_session); } - } else if (strncmp (word[w], "CASEMAPPING=", 12) == 0) + } else if (g_strcmp0 (tokname, "CASEMAPPING") == 0) { - if (strcmp (word[w] + 12, "ascii") == 0) /* bahamut */ + if (g_strcmp0 (tokvalue, "ascii") == 0) serv->p_cmp = (void *)g_ascii_strcasecmp; - } else if (strncmp (word[w], "CHARSET=", 8) == 0) + } else if (g_strcmp0 (tokname, "CHARSET") == 0) { - if (g_ascii_strncasecmp (word[w] + 8, "UTF-8", 5) == 0) + if (g_ascii_strcasecmp (tokvalue, "UTF-8") == 0) { server_set_encoding (serv, "UTF-8"); } - } else if (strcmp (word[w], "NAMESX") == 0) + } else if (g_strcmp0 (tokname, "NAMESX") == 0) { /* 12345678901234567 */ tcp_send_len (serv, "PROTOCTL NAMESX\r\n", 17); - } else if (strcmp (word[w], "WHOX") == 0) + } else if (g_strcmp0 (tokname, "WHOX") == 0) { - serv->have_whox = TRUE; - } else if (strcmp (word[w], "EXCEPTS") == 0) + serv->have_whox = tokadding; + } else if (g_strcmp0 (tokname, "EXCEPTS") == 0) { - serv->have_except = TRUE; - } else if (strcmp (word[w], "INVEX") == 0) + serv->have_except = tokadding; + } else if (g_strcmp0 (tokname, "INVEX") == 0) { /* supports mode letter +I, default channel invite */ - serv->have_invite = TRUE; - } else if (strncmp (word[w], "ELIST=", 6) == 0) + serv->have_invite = tokadding; + } else if (g_strcmp0 (tokname, "ELIST") == 0) { /* supports LIST >< min/max user counts? */ - if (strchr (word[w] + 6, 'U') || strchr (word[w] + 6, 'u')) + if (strchr (tokvalue, 'U') || strchr (tokvalue, 'u')) serv->use_listargs = TRUE; } + g_free (tokname); + g_free (tokvalue); w++; } } |