]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/inspircd_io.cpp
(Untested) added hashcomp.cpp, seperates out the stl hash_map stuff
[user/henk/code/inspircd.git] / src / inspircd_io.cpp
index f1f11d265f6647dcba6d1312b232683012a9b0c0..fcbb83aaeb18a57cbc495f68cfda81a436b5f471 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  Inspire is copyright (C) 2002-2003 ChatSpike-Dev.
+ *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
  *                       E-mail:
  *                <brain@chatspike.net>
  *               <Craig@chatspike.net>
  * ---------------------------------------------------
  */
 
-#ifdef __linux__ 
+#include <sys/time.h>
 #include <sys/resource.h>
-#endif
-
 #include <sys/types.h>
 #include <string>
 #include <unistd.h>
 #include "inspircd.h"
 #include "inspircd_io.h"
 #include "inspircd_util.h"
+#include "inspstring.h"
+#include "helperfuncs.h"
 
 using namespace std;
 
 extern FILE *log_file;
+extern int boundPortCount;
+extern int openSockfd[MAXSOCKS];
+extern time_t TIME;
+extern bool unlimitcore;
 
 void WriteOpers(char* text, ...);
 
 void Exit (int status)
 {
-  if (log_file)
-       fclose(log_file);
-  send_error("Server shutdown.");
-  exit (status);
+       if (log_file)
+               fclose(log_file);
+       send_error("Server shutdown.");
+       exit (status);
 }
 
 void Killed(int status)
 {
-  if (log_file)
-       fclose(log_file);
-  send_error("Server terminated.");
-  exit(status);
+       if (log_file)
+               fclose(log_file);
+       send_error("Server terminated.");
+       exit(status);
 }
 
 void Rehash(int status)
 {
-  ReadConfig();
-  WriteOpers("Rehashing config file %s due to SIGHUP",CONFIG_FILE);
+       WriteOpers("Rehashing config file %s due to SIGHUP",CONFIG_FILE);
+       ReadConfig(false,NULL);
 }
 
 
 
 void Start (void)
 {
-  printf("\033[1;37mInspire Internet Relay Chat Server, compiled " __DATE__ " at " __TIME__ "\n");
-  printf("(C) ChatSpike Development team.\033[0;37m\n\n");
-  printf("\033[1;37mDevelopers:\033[0;37m     Brain, FrostyCoolSlug, RD\n");
-  printf("\033[1;37mDocumentation:\033[0;37m  FrostyCoolSlug, w00t\n");
-  printf("\033[1;37mTesters:\033[0;37m        typobox43, piggles, Lord_Zathras, CC\n");
-  printf("\033[1;37mName concept:\033[0;37m   Lord_Zathras\n\n");
+       printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
+       printf("(C) ChatSpike Development team.\033[0m\n\n");
+       printf("Developers:\033[1;32m     Brain, FrostyCoolSlug\033[0m\n");
+       printf("Documentation:\033[1;32m  FrostyCoolSlug, w00t\033[0m\n");
+       printf("Testers:\033[1;32m        typobox43, piggles, Lord_Zathras, CC\033[0m\n");
+       printf("Name concept:\033[1;32m   Lord_Zathras\033[0m\n\n");
 }
 
-
-void DeadPipe(int status)
+void WritePID(std::string filename)
 {
-  signal (SIGPIPE, DeadPipe);
+       ofstream outfile(filename.c_str());
+       if (outfile.is_open())
+       {
+               outfile << getpid();
+               outfile.close();
+       }
+       else
+       {
+               printf("Failed to write PID-file '%s', exiting.\n",filename.c_str());
+               log(DEFAULT,"Failed to write PID-file '%s', exiting.",filename.c_str());
+               Exit(0);
+       }
 }
 
+
 int DaemonSeed (void)
 {
-  int childpid;
-  signal (SIGALRM, SIG_IGN);
-  signal (SIGHUP, Rehash);
-  signal (SIGPIPE, DeadPipe);
-  signal (SIGTERM, Exit);
-  signal (SIGABRT, Exit);
-  signal (SIGSEGV, Error);
-  signal (SIGURG, Exit);
-  signal (SIGKILL, Exit);
-  if ((childpid = fork ()) < 0)
-    return (ERROR);
-  else if (childpid > 0)
-    exit (0);
-  setsid ();
-  umask (077);
-  /* close stdout, stdin, stderr */
-  close(0);
-  close(1);
-  close(2);
-
-  #ifdef __linux__ 
-  setpriority(PRIO_PROCESS,(int)getpid(),15); /* ircd sets to low process priority so it doesnt hog the box */
-  #endif
+       int childpid;
+       signal (SIGALRM, SIG_IGN);
+       signal (SIGHUP, Rehash);
+       signal (SIGPIPE, SIG_IGN);
+       signal (SIGTERM, Exit);
+       signal (SIGSEGV, Error);
+       if ((childpid = fork ()) < 0)
+               return (ERROR);
+       else if (childpid > 0)
+               exit (0);
+       setsid ();
+       umask (007);
+       printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
+       freopen("/dev/null","w",stdout);
+       freopen("/dev/null","w",stderr);
+       
+       setpriority(PRIO_PROCESS,(int)getpid(),15);
+
+       if (unlimitcore)
+       {
+               rlimit rl;
+               if (getrlimit(RLIMIT_CORE, &rl) == -1)
+               {
+                       log(DEFAULT,"Failed to getrlimit()!");
+                       return(FALSE);
+               }
+               else
+               {
+                       rl.rlim_cur = rl.rlim_max;
+                       if (setrlimit(RLIMIT_CORE, &rl) == -1)
+                               log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
+               }
+       }
   
-  return (TRUE);
+       return (TRUE);
 }
 
 
@@ -112,34 +137,187 @@ int DaemonSeed (void)
 
 bool FileExists (const char* file)
 {
-  FILE *input;
-  
-  if ((input = fopen (file, "r")) == NULL) { return(false); }
-  else { fclose (input); return(true); }
+       FILE *input;
+       if ((input = fopen (file, "r")) == NULL)
+       {
+               return(false);
+       }
+       else
+       {
+               fclose (input);
+               return(true);
+       }
 }
 
+/* ConfProcess does the following things to a config line in the following order:
+ *
+ * Processes the line for syntax errors as shown below
+ *      (1) Line void of quotes or equals (a malformed, illegal tag format)
+ *      (2) Odd number of quotes on the line indicating a missing quote
+ *      (3) number of equals signs not equal to number of quotes / 2 (missing an equals sign)
+ *      (4) Spaces between the opening bracket (<) and the keyword
+ *      (5) Spaces between a keyword and an equals sign
+ *      (6) Spaces between an equals sign and a quote
+ * Removes trailing spaces
+ * Removes leading spaces
+ * Converts tabs to spaces
+ * Turns multiple spaces that are outside of quotes into single spaces
+ */
 
-bool LoadConf(const char* filename, std::stringstream *target)
+std::string ConfProcess(char* buffer, long linenumber, std::stringstream* errorstream, bool &error, std::string filename)
 {
-       FILE* conf = fopen(filename,"r");
+       long number_of_quotes = 0;
+       long number_of_equals = 0;
+       bool has_open_bracket = false;
+       bool in_quotes = false;
+       error = false;
+       if (!buffer)
+       {
+               return "";
+       }
+       // firstly clean up the line by stripping spaces from the start and end and converting tabs to spaces
+       for (int d = 0; d < strlen(buffer); d++)
+               if ((buffer[d]) == 9)
+                       buffer[d] = ' ';
+       while ((buffer[0] == ' ') && (strlen(buffer)>0)) buffer++;
+       while ((buffer[strlen(buffer)-1] == ' ') && (strlen(buffer)>0)) buffer[strlen(buffer)-1] = '\0';
+       // empty lines are syntactically valid
+       if (!strcmp(buffer,""))
+               return "";
+       else if (buffer[0] == '#')
+               return "";
+       for (int c = 0; c < strlen(buffer); c++)
+       {
+               // convert all spaces that are OUTSIDE quotes into hardspace (0xA0) as this will make them easier to
+               // search and replace later :)
+               if ((!in_quotes) && (buffer[c] == ' '))
+                       buffer[c] = '\xA0';
+               if ((buffer[c] == '<') && (!in_quotes))
+               {
+                       has_open_bracket = true;
+                       if (strlen(buffer) == 1)
+                       {
+                               *errorstream << "Tag without identifier at " << filename << ":" << linenumber << endl;
+                               error = true;
+                               return "";
+                       }
+                       else if ((tolower(buffer[c+1]) < 'a') || (tolower(buffer[c+1]) > 'z'))
+                       {
+                               *errorstream << "Invalid characters in identifier at " << filename << ":" << linenumber << endl;
+                               error = true;
+                               return "";
+                       }
+               }
+               if (buffer[c] == '"')
+               {
+                       number_of_quotes++;
+                       in_quotes = (!in_quotes);
+               }
+               if ((buffer[c] == '=') && (!in_quotes))
+               {
+                       number_of_equals++;
+                       if (strlen(buffer) == c)
+                       {
+                               *errorstream << "Variable without a value at " << filename << ":" << linenumber << endl;
+                               error = true;
+                               return "";
+                       }
+                       else if (buffer[c+1] != '"')
+                       {
+                               *errorstream << "Variable name not followed immediately by its value at " << filename << ":" << linenumber << endl;
+                               error = true;
+                               return "";
+                       }
+                       else if (!c)
+                       {
+                               *errorstream << "Value without a variable (line starts with '=') at " << filename << ":" << linenumber << endl;
+                               error = true;
+                               return "";
+                       }
+                       else if (buffer[c-1] == '\xA0')
+                       {
+                               *errorstream << "Variable name not followed immediately by its value at " << filename << ":" << linenumber << endl;
+                               error = true;
+                               return "";
+                       }
+               }
+       }
+       // no quotes, and no equals. something freaky.
+       if ((!number_of_quotes) || (!number_of_equals) && (strlen(buffer)>2) && (buffer[0]=='<'))
+       {
+               *errorstream << "Malformed tag at " << filename << ":" << linenumber << endl;
+               error = true;
+               return "";
+       }
+       // odd number of quotes. thats just wrong.
+       if ((number_of_quotes % 2) != 0)
+       {
+               *errorstream << "Missing \" at " << filename << ":" << linenumber << endl;
+               error = true;
+               return "";
+       }
+       if (number_of_equals < (number_of_quotes/2))
+       {
+               *errorstream << "Missing '=' at " << filename << ":" << linenumber << endl;
+       }
+       if (number_of_equals > (number_of_quotes/2))
+       {
+               *errorstream << "Too many '=' at " << filename << ":" << linenumber << endl;
+       }
+
+       std::string parsedata = buffer;
+       // turn multispace into single space
+       while (parsedata.find("\xA0\xA0") != std::string::npos)
+       {
+               parsedata.erase(parsedata.find("\xA0\xA0"),1);
+       }
+
+       // turn our hardspace back into softspace
+       for (int d = 0; d < parsedata.length(); d++)
+       {
+               if (parsedata[d] == '\xA0')
+                       parsedata[d] = ' ';
+       }
+
+       // and we're done, the line is fine!
+       return parsedata;
+}
+
+bool LoadConf(const char* filename, std::stringstream *target, std::stringstream* errorstream)
+{
+       target->str("");
+       errorstream->str("");
+       long linenumber = 1;
+       // first, check that the file exists before we try to do anything with it
        if (!FileExists(filename))
        {
+               *errorstream << "File " << filename << " not found." << endl;
                return false;
        }
+       // Fix the chmod of the file to restrict it to the current user and group
+       chmod(filename,0600);
+       // now open it
+       FILE* conf = fopen(filename,"r");
        char buffer[MAXBUF];
        if (conf)
        {
-               target->clear();
                while (!feof(conf))
                {
                        if (fgets(buffer, MAXBUF, conf))
                        {
                                if ((!feof(conf)) && (buffer) && (strlen(buffer)))
                                {
-                                       if (buffer[0] != '#')
+                                       if ((buffer[0] != '#') && (buffer[0] != '\r')  && (buffer[0] != '\n'))
                                        {
-                                               *target << std::string(buffer);
+                                               bool error = false;
+                                               std::string data = ConfProcess(buffer,linenumber++,errorstream,error,filename);
+                                               if (error)
+                                               {
+                                                       return false;
+                                               }
+                                               *target << data;
                                        }
+                                       else linenumber++;
                                }
                        }
                }
@@ -155,8 +333,7 @@ int EnumConf(std::stringstream *config, const char* tag)
 {
        int ptr = 0;
        char buffer[MAXBUF], c_tag[MAXBUF], c, lastc;
-       int in_token, in_quotes, tptr, j, idx = 0;
-       char* key;
+       int in_token, in_quotes, tptr, idx = 0;
 
        const char* buf = config->str().c_str();
        long bptr = 0;
@@ -220,6 +397,91 @@ int EnumConf(std::stringstream *config, const char* tag)
        return idx;
 }
 
+/* Counts the number of values within a certain tag */
+
+int EnumValues(std::stringstream *config, const char* tag, int index)
+{
+       int ptr = 0;
+       char buffer[MAXBUF], c_tag[MAXBUF], c, lastc;
+       int in_token, in_quotes, tptr, idx = 0;
+       
+       bool correct_tag = false;
+       int num_items = 0;
+
+       const char* buf = config->str().c_str();
+       long bptr = 0;
+       long len = strlen(buf);
+       
+       ptr = 0;
+       in_token = 0;
+       in_quotes = 0;
+       lastc = '\0';
+       while (bptr<len)
+       {
+               lastc = c;
+               c = buf[bptr++];
+               if ((c == '#') && (lastc == '\n'))
+               {
+                       while ((c != '\n') && (bptr<len))
+                       {
+                               lastc = c;
+                               c = buf[bptr++];
+                       }
+               }
+               if ((c == '<') && (!in_quotes))
+               {
+                       tptr = 0;
+                       in_token = 1;
+                       do {
+                               c = buf[bptr++];
+                               if (c != ' ')
+                               {
+                                       c_tag[tptr++] = c;
+                                       c_tag[tptr] = '\0';
+                                       
+                                       if ((!strcmp(c_tag,tag)) && (idx == index))
+                                       {
+                                               correct_tag = true;
+                                       }
+                               }
+                       } while (c != ' ');
+               }
+               if (c == '"')
+               {
+                       in_quotes = (!in_quotes);
+               }
+               
+               if ( (correct_tag) && (!in_quotes) && ( (c == ' ') || (c == '\n') || (c == '\r') ) )
+               {
+                       num_items++;
+               }
+               if ((c == '>') && (!in_quotes))
+               {
+                       in_token = 0;
+                       if (correct_tag)
+                               correct_tag = false;
+                       if (!strcmp(c_tag,tag))
+                       {
+                               /* correct tag, but wrong index */
+                               idx++;
+                       }
+                       c_tag[0] = '\0';
+                       buffer[0] = '\0';
+                       ptr = 0;
+                       tptr = 0;
+               }
+               if (c != '>')
+               {
+                       if ((in_token) && (c != '\n') && (c != '\r'))
+                       {
+                               buffer[ptr++] = c;
+                               buffer[ptr] = '\0';
+                       }
+               }
+       }
+       return num_items+1;
+}
+
 
 
 int ConfValueEnum(char* tag, std::stringstream* config)
@@ -238,30 +500,27 @@ int ConfValueEnum(char* tag, std::stringstream* config)
 int ReadConf(std::stringstream *config, const char* tag, const char* var, int index, char *result)
 {
        int ptr = 0;
-       char buffer[MAXBUF], c_tag[MAXBUF], c, lastc;
+       char buffer[65535], c_tag[MAXBUF], c, lastc;
        int in_token, in_quotes, tptr, j, idx = 0;
        char* key;
 
        const char* buf = config->str().c_str();
        long bptr = 0;
-       long len = strlen(buf);
+       long len = config->str().length();
        
        ptr = 0;
        in_token = 0;
        in_quotes = 0;
        lastc = '\0';
+       c_tag[0] = '\0';
+       buffer[0] = '\0';
        while (bptr<len)
        {
                lastc = c;
                c = buf[bptr++];
-               if ((c == '#') && (lastc == '\n'))
-               {
-                       while ((c != '\n') && (bptr<len))
-                       {
-                               lastc = c;
-                               c = buf[bptr++];
-                       }
-               }
+               // FIX: Treat tabs as spaces
+               if (c == 9)
+                       c = 32;
                if ((c == '<') && (!in_quotes))
                {
                        tptr = 0;
@@ -273,7 +532,8 @@ int ReadConf(std::stringstream *config, const char* tag, const char* var, int in
                                        c_tag[tptr++] = c;
                                        c_tag[tptr] = '\0';
                                }
-                       } while (c != ' ');
+                       // FIX: Tab can follow a tagname as well as space.
+                       } while ((c != ' ') && (c != 9));
                }
                if (c == '"')
                {
@@ -292,6 +552,7 @@ int ReadConf(std::stringstream *config, const char* tag, const char* var, int in
                                                if (!key)
                                                {
                                                        /* value not found in tag */
+                                                       strcpy(result,"");
                                                        return 0;
                                                }
                                                else
@@ -302,6 +563,7 @@ int ReadConf(std::stringstream *config, const char* tag, const char* var, int in
                                                                if (!strlen(key))
                                                                {
                                                                        /* missing quote */
+                                                                       strcpy(result,"");
                                                                        return 0;
                                                                }
                                                                key++;
@@ -314,7 +576,7 @@ int ReadConf(std::stringstream *config, const char* tag, const char* var, int in
                                                                        key[j] = '\0';
                                                                }
                                                        }
-                                                       strcpy(result,key);
+                                                       strlcpy(result,key,MAXBUF);
                                                        return 1;
                                                }
                                        }
@@ -339,6 +601,7 @@ int ReadConf(std::stringstream *config, const char* tag, const char* var, int in
                        }
                }
        }
+       strcpy(result,""); // value or its tag not found at all
        return 0;
 }
 
@@ -352,54 +615,51 @@ int ConfValue(char* tag, char* var, int index, char *result,std::stringstream *c
 
 
 
-/* This will bind a socket to a port. It works for UDP/TCP */
+// This will bind a socket to a port. It works for UDP/TCP
 int BindSocket (int sockfd, struct sockaddr_in client, struct sockaddr_in server, int port, char* addr)
 {
-  bzero((char *)&server,sizeof(server));
-  struct in_addr addy;
-  inet_aton(addr,&addy);
-
-  server.sin_family = AF_INET;
-  if (!strcmp(addr,""))
-  {
-         server.sin_addr.s_addr = htonl(INADDR_ANY);
-  }
-  else
-  {
-         server.sin_addr = addy;
-  }
-
-  server.sin_port = htons(port);
-
-  if (bind(sockfd,(struct sockaddr*)&server,sizeof(server))<0)
-  {
-    return(ERROR);
-  }
-  else
-  {
-    listen(sockfd,5);
-    return(TRUE);
-  }
+       bzero((char *)&server,sizeof(server));
+       struct in_addr addy;
+       inet_aton(addr,&addy);
+       server.sin_family = AF_INET;
+       if (!strcmp(addr,""))
+       {
+               server.sin_addr.s_addr = htonl(INADDR_ANY);
+       }
+       else
+       {
+               server.sin_addr = addy;
+       }
+       server.sin_port = htons(port);
+       if (bind(sockfd,(struct sockaddr*)&server,sizeof(server))<0)
+       {
+               return(ERROR);
+       }
+       else
+       {
+               listen(sockfd,5);
+               return(TRUE);
+       }
 }
 
 
-/* Open a TCP Socket */
+// Open a TCP Socket
 int OpenTCPSocket (void)
 {
-  int sockfd;
-  int on = 0;
-  struct linger linger = { 0 };
+       int sockfd;
+       int on = 1;
+       struct linger linger = { 0 };
   
-  if ((sockfd = socket (AF_INET, SOCK_STREAM, 0)) < 0)
-    return (ERROR);
-  else
-  {
-    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on));
-    /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
-    linger.l_onoff = 1;
-    linger.l_linger = 0;
-    setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger));
-    return (sockfd);
-  }
+       if ((sockfd = socket (AF_INET, SOCK_STREAM, 0)) < 0)
+               return (ERROR);
+       else
+       {
+               setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on));
+               /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
+               linger.l_onoff = 1;
+               linger.l_linger = 1;
+               setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger));
+               return (sockfd);
+       }
 }