1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
19 #include "inspircd_config.h"
21 #include <sys/resource.h>
22 #include <sys/types.h>
29 #include "inspircd_io.h"
30 #include "inspircd_util.h"
31 #include "inspstring.h"
32 #include "helperfuncs.h"
34 extern FILE *log_file;
35 extern int boundPortCount;
36 extern int openSockfd[MAXSOCKS];
38 extern bool unlimitcore;
40 std::vector<std::string> include_stack;
42 void WriteOpers(char* text, ...);
44 void Exit (int status)
48 send_error("Server shutdown.");
52 void Killed(int status)
56 send_error("Server terminated.");
60 void Rehash(int status)
62 WriteOpers("Rehashing config file %s due to SIGHUP",CONFIG_FILE);
63 ReadConfig(false,NULL);
70 printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
71 printf("(C) ChatSpike Development team.\033[0m\n\n");
72 printf("Developers:\033[1;32m Brain, FrostyCoolSlug\033[0m\n");
73 printf("Documentation:\033[1;32m FrostyCoolSlug, w00t\033[0m\n");
74 printf("Testers:\033[1;32m typobox43, piggles, Lord_Zathras, CC\033[0m\n");
75 printf("Name concept:\033[1;32m Lord_Zathras\033[0m\n\n");
78 void WritePID(std::string filename)
80 ofstream outfile(filename.c_str());
81 if (outfile.is_open())
88 printf("Failed to write PID-file '%s', exiting.\n",filename.c_str());
89 log(DEFAULT,"Failed to write PID-file '%s', exiting.",filename.c_str());
98 signal (SIGALRM, SIG_IGN);
99 signal (SIGHUP, Rehash);
100 signal (SIGPIPE, SIG_IGN);
101 signal (SIGTERM, Exit);
102 signal (SIGSEGV, Error);
103 if ((childpid = fork ()) < 0)
105 else if (childpid > 0)
109 printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
110 freopen("/dev/null","w",stdout);
111 freopen("/dev/null","w",stderr);
113 setpriority(PRIO_PROCESS,(int)getpid(),15);
118 if (getrlimit(RLIMIT_CORE, &rl) == -1)
120 log(DEFAULT,"Failed to getrlimit()!");
125 rl.rlim_cur = rl.rlim_max;
126 if (setrlimit(RLIMIT_CORE, &rl) == -1)
127 log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
135 /* Make Sure Modules Are Avaliable!
136 * (BugFix By Craig.. See? I do work! :p)
137 * Modified by brain, requires const char*
138 * to work with other API functions
141 bool FileExists (const char* file)
144 if ((input = fopen (file, "r")) == NULL)
155 /* ConfProcess does the following things to a config line in the following order:
157 * Processes the line for syntax errors as shown below
158 * (1) Line void of quotes or equals (a malformed, illegal tag format)
159 * (2) Odd number of quotes on the line indicating a missing quote
160 * (3) number of equals signs not equal to number of quotes / 2 (missing an equals sign)
161 * (4) Spaces between the opening bracket (<) and the keyword
162 * (5) Spaces between a keyword and an equals sign
163 * (6) Spaces between an equals sign and a quote
164 * Removes trailing spaces
165 * Removes leading spaces
166 * Converts tabs to spaces
167 * Turns multiple spaces that are outside of quotes into single spaces
170 std::string ConfProcess(char* buffer, long linenumber, std::stringstream* errorstream, bool &error, std::string filename)
172 long number_of_quotes = 0;
173 long number_of_equals = 0;
174 bool has_open_bracket = false;
175 bool in_quotes = false;
181 // firstly clean up the line by stripping spaces from the start and end and converting tabs to spaces
182 for (int d = 0; d < strlen(buffer); d++)
183 if ((buffer[d]) == 9)
185 while ((buffer[0] == ' ') && (strlen(buffer)>0)) buffer++;
186 while ((buffer[strlen(buffer)-1] == ' ') && (strlen(buffer)>0)) buffer[strlen(buffer)-1] = '\0';
187 // empty lines are syntactically valid
188 if (!strcmp(buffer,""))
190 else if (buffer[0] == '#')
192 for (int c = 0; c < strlen(buffer); c++)
194 // convert all spaces that are OUTSIDE quotes into hardspace (0xA0) as this will make them easier to
195 // search and replace later :)
196 if ((!in_quotes) && (buffer[c] == ' '))
198 if ((buffer[c] == '<') && (!in_quotes))
200 has_open_bracket = true;
201 if (strlen(buffer) == 1)
203 *errorstream << "Tag without identifier at " << filename << ":" << linenumber << endl;
207 else if ((tolower(buffer[c+1]) < 'a') || (tolower(buffer[c+1]) > 'z'))
209 *errorstream << "Invalid characters in identifier at " << filename << ":" << linenumber << endl;
214 if (buffer[c] == '"')
217 in_quotes = (!in_quotes);
219 if ((buffer[c] == '=') && (!in_quotes))
222 if (strlen(buffer) == c)
224 *errorstream << "Variable without a value at " << filename << ":" << linenumber << endl;
228 else if (buffer[c+1] != '"')
230 *errorstream << "Variable name not followed immediately by its value at " << filename << ":" << linenumber << endl;
236 *errorstream << "Value without a variable (line starts with '=') at " << filename << ":" << linenumber << endl;
240 else if (buffer[c-1] == '\xA0')
242 *errorstream << "Variable name not followed immediately by its value at " << filename << ":" << linenumber << endl;
248 // no quotes, and no equals. something freaky.
249 if ((!number_of_quotes) || (!number_of_equals) && (strlen(buffer)>2) && (buffer[0]=='<'))
251 *errorstream << "Malformed tag at " << filename << ":" << linenumber << endl;
255 // odd number of quotes. thats just wrong.
256 if ((number_of_quotes % 2) != 0)
258 *errorstream << "Missing \" at " << filename << ":" << linenumber << endl;
262 if (number_of_equals < (number_of_quotes/2))
264 *errorstream << "Missing '=' at " << filename << ":" << linenumber << endl;
266 if (number_of_equals > (number_of_quotes/2))
268 *errorstream << "Too many '=' at " << filename << ":" << linenumber << endl;
271 std::string parsedata = buffer;
272 // turn multispace into single space
273 while (parsedata.find("\xA0\xA0") != std::string::npos)
275 parsedata.erase(parsedata.find("\xA0\xA0"),1);
278 // turn our hardspace back into softspace
279 for (int d = 0; d < parsedata.length(); d++)
281 if (parsedata[d] == '\xA0')
285 // and we're done, the line is fine!
289 bool LoadConf(const char* filename, std::stringstream *target, std::stringstream* errorstream)
292 errorstream->str("");
294 // first, check that the file exists before we try to do anything with it
295 if (!FileExists(filename))
297 *errorstream << "File " << filename << " not found." << endl;
300 // Fix the chmod of the file to restrict it to the current user and group
301 chmod(filename,0600);
302 for (int t = 0; t < include_stack.size(); t++)
304 if (std::string(filename) == include_stack[t])
306 *errorstream << "File " << filename << " is included recursively (looped inclusion)." << endl;
310 include_stack.push_back(filename);
312 FILE* conf = fopen(filename,"r");
318 if (fgets(buffer, MAXBUF, conf))
320 if ((!feof(conf)) && (buffer) && (strlen(buffer)))
322 if ((buffer[0] != '#') && (buffer[0] != '\r') && (buffer[0] != '\n'))
324 if (!strncmp(buffer,"<include file=\"",15))
327 char confpath[10240],newconf[10240];
328 // include file directive
329 buf += 15; // advance to filename
330 for (int j = 0; j < strlen(buf); j++)
340 log(DEFAULT,"Opening included file '%s'",buf);
343 strlcpy(confpath,CONFIG_FILE,10240);
344 if (strstr(confpath,"/inspircd.conf"))
346 // leaves us with just the path
347 *(strstr(confpath,"/inspircd.conf")) = '\0';
349 snprintf(newconf,10240,"%s/%s",confpath,buf);
351 else snprintf(newconf,10240,"%s",buf);
352 std::stringstream merge(stringstream::in | stringstream::out);
353 // recursively call LoadConf and get the new data, use the same errorstream
354 if (LoadConf(newconf, &merge, errorstream))
356 // append to the end of the file
357 std::string newstuff = merge.str();
362 // the error propogates up to its parent recursively
363 // causing the config reader to bail at the top level.
371 std::string data = ConfProcess(buffer,linenumber++,errorstream,error,filename);
389 /* Counts the number of tags of a certain type within the config file, e.g. to enumerate opers */
391 int EnumConf(std::stringstream *config, const char* tag)
394 char buffer[MAXBUF], c_tag[MAXBUF], c, lastc;
395 int in_token, in_quotes, tptr, idx = 0;
397 const char* buf = config->str().c_str();
399 long len = strlen(buf);
409 if ((c == '#') && (lastc == '\n'))
411 while ((c != '\n') && (bptr<len))
417 if ((c == '<') && (!in_quotes))
432 in_quotes = (!in_quotes);
434 if ((c == '>') && (!in_quotes))
437 if (!strcmp(c_tag,tag))
439 /* correct tag, but wrong index */
449 if ((in_token) && (c != '\n') && (c != '\r'))
459 /* Counts the number of values within a certain tag */
461 int EnumValues(std::stringstream *config, const char* tag, int index)
464 char buffer[MAXBUF], c_tag[MAXBUF], c, lastc;
465 int in_token, in_quotes, tptr, idx = 0;
467 bool correct_tag = false;
470 const char* buf = config->str().c_str();
472 long len = strlen(buf);
482 if ((c == '#') && (lastc == '\n'))
484 while ((c != '\n') && (bptr<len))
490 if ((c == '<') && (!in_quotes))
501 if ((!strcmp(c_tag,tag)) && (idx == index))
510 in_quotes = (!in_quotes);
513 if ( (correct_tag) && (!in_quotes) && ( (c == ' ') || (c == '\n') || (c == '\r') ) )
517 if ((c == '>') && (!in_quotes))
522 if (!strcmp(c_tag,tag))
524 /* correct tag, but wrong index */
534 if ((in_token) && (c != '\n') && (c != '\r'))
546 int ConfValueEnum(char* tag, std::stringstream* config)
548 return EnumConf(config,tag);
553 /* Retrieves a value from the config file. If there is more than one value of the specified
554 * key and section (e.g. for opers etc) then the index value specifies which to retreive, e.g.
556 * ConfValue("oper","name",2,result);
559 int ReadConf(std::stringstream *config, const char* tag, const char* var, int index, char *result)
562 char buffer[65535], c_tag[MAXBUF], c, lastc;
563 int in_token, in_quotes, tptr, j, idx = 0;
566 const char* buf = config->str().c_str();
568 long len = config->str().length();
580 // FIX: Treat tabs as spaces
583 if ((c == '<') && (!in_quotes))
594 // FIX: Tab can follow a tagname as well as space.
595 } while ((c != ' ') && (c != 9));
599 in_quotes = (!in_quotes);
601 if ((c == '>') && (!in_quotes))
606 if (!strcmp(c_tag,tag))
608 if ((buffer) && (c_tag) && (var))
610 key = strstr(buffer,var);
613 /* value not found in tag */
631 for (j = 0; j < strlen(key); j++)
638 strlcpy(result,key,MAXBUF);
644 if (!strcmp(c_tag,tag))
646 /* correct tag, but wrong index */
656 if ((in_token) && (c != '\n') && (c != '\r'))
663 strcpy(result,""); // value or its tag not found at all
669 int ConfValue(char* tag, char* var, int index, char *result,std::stringstream *config)
671 ReadConf(config, tag, var, index, result);
677 // This will bind a socket to a port. It works for UDP/TCP
678 int BindSocket (int sockfd, struct sockaddr_in client, struct sockaddr_in server, int port, char* addr)
680 memset((char *)&server,0,sizeof(server));
682 inet_aton(addr,&addy);
683 server.sin_family = AF_INET;
684 if (!strcmp(addr,""))
686 server.sin_addr.s_addr = htonl(INADDR_ANY);
690 server.sin_addr = addy;
692 server.sin_port = htons(port);
693 if (bind(sockfd,(struct sockaddr*)&server,sizeof(server))<0)
699 listen(sockfd, MaxConn);
706 int OpenTCPSocket (void)
710 struct linger linger = { 0 };
712 if ((sockfd = socket (AF_INET, SOCK_STREAM, 0)) < 0)
716 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on));
717 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
720 setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger));