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 * ---------------------------------------------------
18 #include <sys/resource.h>
19 #include <sys/types.h>
26 #include "inspircd_io.h"
27 #include "inspircd_util.h"
28 #include "inspstring.h"
32 extern FILE *log_file;
33 extern int boundPortCount;
34 extern int openSockfd[MAXSOCKS];
36 extern bool unlimitcore;
38 void WriteOpers(char* text, ...);
40 void Exit (int status)
44 send_error("Server shutdown.");
48 void Killed(int status)
52 send_error("Server terminated.");
56 void Rehash(int status)
58 WriteOpers("Rehashing config file %s due to SIGHUP",CONFIG_FILE);
59 ReadConfig(false,NULL);
66 printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
67 printf("(C) ChatSpike Development team.\033[0m\n\n");
68 printf("Developers:\033[1;32m Brain, FrostyCoolSlug\033[0m\n");
69 printf("Documentation:\033[1;32m FrostyCoolSlug, w00t\033[0m\n");
70 printf("Testers:\033[1;32m typobox43, piggles, Lord_Zathras, CC\033[0m\n");
71 printf("Name concept:\033[1;32m Lord_Zathras\033[0m\n\n");
74 void WritePID(std::string filename)
76 ofstream outfile(filename.c_str());
77 if (outfile.is_open())
84 printf("Failed to write PID-file '%s', exiting.\n",filename.c_str());
85 log(DEFAULT,"Failed to write PID-file '%s', exiting.",filename.c_str());
94 signal (SIGALRM, SIG_IGN);
95 signal (SIGHUP, Rehash);
96 signal (SIGPIPE, SIG_IGN);
97 signal (SIGTERM, Exit);
98 signal (SIGSEGV, Error);
99 if ((childpid = fork ()) < 0)
101 else if (childpid > 0)
105 printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
106 freopen("/dev/null","w",stdout);
107 freopen("/dev/null","w",stderr);
109 setpriority(PRIO_PROCESS,(int)getpid(),15);
114 if (getrlimit(RLIMIT_CORE, &rl) == -1)
116 log(DEFAULT,"Failed to getrlimit()!");
121 rl.rlim_cur = rl.rlim_max;
122 if (setrlimit(RLIMIT_CORE, &rl) == -1)
123 log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
131 /* Make Sure Modules Are Avaliable!
132 * (BugFix By Craig.. See? I do work! :p)
133 * Modified by brain, requires const char*
134 * to work with other API functions
137 bool FileExists (const char* file)
140 if ((input = fopen (file, "r")) == NULL)
151 /* ConfProcess does the following things to a config line in the following order:
153 * Processes the line for syntax errors as shown below
154 * (1) Line void of quotes or equals (a malformed, illegal tag format)
155 * (2) Odd number of quotes on the line indicating a missing quote
156 * (3) number of equals signs not equal to number of quotes / 2 (missing an equals sign)
157 * (4) Spaces between the opening bracket (<) and the keyword
158 * (5) Spaces between a keyword and an equals sign
159 * (6) Spaces between an equals sign and a quote
160 * Removes trailing spaces
161 * Removes leading spaces
162 * Converts tabs to spaces
163 * Turns multiple spaces that are outside of quotes into single spaces
166 std::string ConfProcess(char* buffer, long linenumber, std::stringstream* errorstream, bool &error, std::string filename)
168 long number_of_quotes = 0;
169 long number_of_equals = 0;
170 bool has_open_bracket = false;
171 bool in_quotes = false;
177 // firstly clean up the line by stripping spaces from the start and end and converting tabs to spaces
178 for (int d = 0; d < strlen(buffer); d++)
179 if ((buffer[d]) == 9)
181 while ((buffer[0] == ' ') && (strlen(buffer)>0)) buffer++;
182 while ((buffer[strlen(buffer)-1] == ' ') && (strlen(buffer)>0)) buffer[strlen(buffer)-1] = '\0';
183 // empty lines are syntactically valid
184 if (!strcmp(buffer,""))
186 else if (buffer[0] == '#')
188 for (int c = 0; c < strlen(buffer); c++)
190 // convert all spaces that are OUTSIDE quotes into hardspace (0xA0) as this will make them easier to
191 // search and replace later :)
192 if ((!in_quotes) && (buffer[c] == ' '))
194 if ((buffer[c] == '<') && (!in_quotes))
196 has_open_bracket = true;
197 if (strlen(buffer) == 1)
199 *errorstream << "Tag without identifier at " << filename << ":" << linenumber << endl;
203 else if ((tolower(buffer[c+1]) < 'a') || (tolower(buffer[c+1]) > 'z'))
205 *errorstream << "Invalid characters in identifier at " << filename << ":" << linenumber << endl;
210 if (buffer[c] == '"')
213 in_quotes = (!in_quotes);
215 if ((buffer[c] == '=') && (!in_quotes))
218 if (strlen(buffer) == c)
220 *errorstream << "Variable without a value at " << filename << ":" << linenumber << endl;
224 else if (buffer[c+1] != '"')
226 *errorstream << "Variable name not followed immediately by its value at " << filename << ":" << linenumber << endl;
232 *errorstream << "Value without a variable (line starts with '=') at " << filename << ":" << linenumber << endl;
236 else if (buffer[c-1] == '\xA0')
238 *errorstream << "Variable name not followed immediately by its value at " << filename << ":" << linenumber << endl;
244 // no quotes, and no equals. something freaky.
245 if ((!number_of_quotes) || (!number_of_equals) && (strlen(buffer)>2) && (buffer[0]=='<'))
247 *errorstream << "Malformed tag at " << filename << ":" << linenumber << endl;
251 // odd number of quotes. thats just wrong.
252 if ((number_of_quotes % 2) != 0)
254 *errorstream << "Missing \" at " << filename << ":" << linenumber << endl;
258 if (number_of_equals < (number_of_quotes/2))
260 *errorstream << "Missing '=' at " << filename << ":" << linenumber << endl;
262 if (number_of_equals > (number_of_quotes/2))
264 *errorstream << "Too many '=' at " << filename << ":" << linenumber << endl;
267 std::string parsedata = buffer;
268 // turn multispace into single space
269 while (parsedata.find("\xA0\xA0") != std::string::npos)
271 parsedata.erase(parsedata.find("\xA0\xA0"),1);
274 // turn our hardspace back into softspace
275 for (int d = 0; d < parsedata.length(); d++)
277 if (parsedata[d] == '\xA0')
281 // and we're done, the line is fine!
285 bool LoadConf(const char* filename, std::stringstream *target, std::stringstream* errorstream)
288 errorstream->str("");
290 // first, check that the file exists before we try to do anything with it
291 if (!FileExists(filename))
293 *errorstream << "File " << filename << " not found." << endl;
296 // Fix the chmod of the file to restrict it to the current user and group
297 chmod(filename,0600);
299 FILE* conf = fopen(filename,"r");
305 if (fgets(buffer, MAXBUF, conf))
307 if ((!feof(conf)) && (buffer) && (strlen(buffer)))
309 if ((buffer[0] != '#') && (buffer[0] != '\r') && (buffer[0] != '\n'))
312 std::string data = ConfProcess(buffer,linenumber++,errorstream,error,filename);
329 /* Counts the number of tags of a certain type within the config file, e.g. to enumerate opers */
331 int EnumConf(std::stringstream *config, const char* tag)
334 char buffer[MAXBUF], c_tag[MAXBUF], c, lastc;
335 int in_token, in_quotes, tptr, idx = 0;
337 const char* buf = config->str().c_str();
339 long len = strlen(buf);
349 if ((c == '#') && (lastc == '\n'))
351 while ((c != '\n') && (bptr<len))
357 if ((c == '<') && (!in_quotes))
372 in_quotes = (!in_quotes);
374 if ((c == '>') && (!in_quotes))
377 if (!strcmp(c_tag,tag))
379 /* correct tag, but wrong index */
389 if ((in_token) && (c != '\n') && (c != '\r'))
399 /* Counts the number of values within a certain tag */
401 int EnumValues(std::stringstream *config, const char* tag, int index)
404 char buffer[MAXBUF], c_tag[MAXBUF], c, lastc;
405 int in_token, in_quotes, tptr, idx = 0;
407 bool correct_tag = false;
410 const char* buf = config->str().c_str();
412 long len = strlen(buf);
422 if ((c == '#') && (lastc == '\n'))
424 while ((c != '\n') && (bptr<len))
430 if ((c == '<') && (!in_quotes))
441 if ((!strcmp(c_tag,tag)) && (idx == index))
450 in_quotes = (!in_quotes);
453 if ( (correct_tag) && (!in_quotes) && ( (c == ' ') || (c == '\n') || (c == '\r') ) )
457 if ((c == '>') && (!in_quotes))
462 if (!strcmp(c_tag,tag))
464 /* correct tag, but wrong index */
474 if ((in_token) && (c != '\n') && (c != '\r'))
486 int ConfValueEnum(char* tag, std::stringstream* config)
488 return EnumConf(config,tag);
493 /* Retrieves a value from the config file. If there is more than one value of the specified
494 * key and section (e.g. for opers etc) then the index value specifies which to retreive, e.g.
496 * ConfValue("oper","name",2,result);
499 int ReadConf(std::stringstream *config, const char* tag, const char* var, int index, char *result)
502 char buffer[65535], c_tag[MAXBUF], c, lastc;
503 int in_token, in_quotes, tptr, j, idx = 0;
506 const char* buf = config->str().c_str();
508 long len = config->str().length();
520 // FIX: Treat tabs as spaces
523 if ((c == '<') && (!in_quotes))
534 // FIX: Tab can follow a tagname as well as space.
535 } while ((c != ' ') && (c != 9));
539 in_quotes = (!in_quotes);
541 if ((c == '>') && (!in_quotes))
546 if (!strcmp(c_tag,tag))
548 if ((buffer) && (c_tag) && (var))
550 key = strstr(buffer,var);
553 /* value not found in tag */
571 for (j = 0; j < strlen(key); j++)
578 strlcpy(result,key,MAXBUF);
584 if (!strcmp(c_tag,tag))
586 /* correct tag, but wrong index */
596 if ((in_token) && (c != '\n') && (c != '\r'))
603 strcpy(result,""); // value or its tag not found at all
609 int ConfValue(char* tag, char* var, int index, char *result,std::stringstream *config)
611 ReadConf(config, tag, var, index, result);
617 // This will bind a socket to a port. It works for UDP/TCP
618 int BindSocket (int sockfd, struct sockaddr_in client, struct sockaddr_in server, int port, char* addr)
620 bzero((char *)&server,sizeof(server));
622 inet_aton(addr,&addy);
623 server.sin_family = AF_INET;
624 if (!strcmp(addr,""))
626 server.sin_addr.s_addr = htonl(INADDR_ANY);
630 server.sin_addr = addy;
632 server.sin_port = htons(port);
633 if (bind(sockfd,(struct sockaddr*)&server,sizeof(server))<0)
646 int OpenTCPSocket (void)
650 struct linger linger = { 0 };
652 if ((sockfd = socket (AF_INET, SOCK_STREAM, 0)) < 0)
656 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on));
657 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
660 setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger));