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-rw-r--r--src/inspircd_io.cpp371
1 files changed, 371 insertions, 0 deletions
diff --git a/src/inspircd_io.cpp b/src/inspircd_io.cpp
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+++ b/src/inspircd_io.cpp
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+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * Inspire is copyright (C) 2002-2003 ChatSpike-Dev.
+ * E-mail:
+ * <brain@chatspike.net>
+ * <Craig@chatspike.net>
+ *
+ * Written by Craig Edwards, Craig McLure, and others.
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+
+ $Log$
+ Revision 1.1 2003/01/23 19:45:58 brain
+ Initial revision
+
+ Revision 1.12 2003/01/22 20:49:16 brain
+ Added FileReader file-caching class
+ Changed m_randquote to use FileReader class
+
+ Revision 1.11 2003/01/21 20:31:24 brain
+ Modified to add documentation
+ Added ConfigReader class for modules
+
+ Revision 1.10 2003/01/16 20:11:55 brain
+ fixed some ugly pointer bugs (thanks dblack and a|KK|y!)
+
+ Revision 1.9 2003/01/09 13:05:58 brain
+
+ Fixed socket lingering problems (is BSD compatible)
+
+ Revision 1.8 2003/01/07 19:57:56 brain
+
+ Dynamix module support, preliminary release
+
+ Revision 1.7 2003/01/06 23:38:29 brain
+
+ just playing with header tags
+
+
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "inspircd_io.h"
+#include "inspircd_util.h"
+
+void WriteOpers(char* text, ...);
+
+void Exit (int status)
+{
+ send_error("Server shutdown.");
+ exit (status);
+}
+
+void Killed(int status)
+{
+ send_error("Server terminated.");
+ exit(status);
+}
+
+void Rehash(int status)
+{
+ ReadConfig();
+ WriteOpers("Rehashing config file %s due to SIGHUP",CONFIG_FILE);
+}
+
+
+
+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, Raider, RD\n");
+ printf("\033[1;37mDocumentation:\033[0;37m FrostyCoolSlug\n");
+ printf("\033[1;37mTesters:\033[0;37m MrBOFH, piggles, Lord_Zathras, typobox43, CC\n");
+ printf("\033[1;37mName concept:\033[0;37m Lord_Zathras\n\n");
+}
+
+
+int DaemonSeed (void)
+{
+ int childpid;
+ signal (SIGALRM, SIG_IGN);
+ signal (SIGHUP, Rehash);
+ signal (SIGPIPE, SIG_IGN);
+ 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);
+ return (TRUE);
+}
+
+
+
+
+/* Make sure the config file is available */
+int CheckConfig (void)
+{
+ FILE *input;
+
+ if ((input = fopen (CONFIG_FILE, "r")) == NULL)
+ {
+ printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
+ return(FALSE);
+ }
+ else
+ fclose (input);
+
+return(TRUE);
+}
+
+/* Counts the number of tags of a certain type within the config file, e.g. to enumerate opers */
+
+int EnumConf(const char* filename, const char* tag)
+{
+ FILE *config;
+ int ptr = 0;
+ char buffer[MAXBUF], c_tag[MAXBUF], c;
+ int in_token, in_quotes, tptr, j, idx = 0;
+ char* key;
+
+ if ((config = fopen (filename, "r")) == NULL)
+ {
+ return 0;
+ }
+ else
+ {
+ ptr = 0;
+ in_token = 0;
+ in_quotes = 0;
+ while (!feof(config))
+ {
+ c = fgetc(config);
+ if ((c == '<') && (!in_quotes))
+ {
+ tptr = 0;
+ in_token = 1;
+ do {
+ c = fgetc(config);
+ if (c != ' ')
+ {
+ c_tag[tptr++] = c;
+ c_tag[tptr] = '\0';
+ }
+ } while (c != ' ');
+ }
+ if (c == '"')
+ {
+ in_quotes = (!in_quotes);
+ }
+ if ((c == '>') && (!in_quotes))
+ {
+ in_token = 0;
+ 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';
+ }
+ }
+ }
+ }
+ fclose(config);
+ return idx;
+}
+
+
+
+int ConfValueEnum(char* tag)
+{
+ EnumConf(CONFIG_FILE,tag);
+}
+
+
+
+/* Retrieves a value from the config file. If there is more than one value of the specified
+ * key and section (e.g. for opers etc) then the index value specifies which to retreive, e.g.
+ *
+ * ConfValue("oper","name",2,result);
+ */
+
+int ReadConf(const char* filename, const char* tag, const char* var, int index, char *result)
+{
+ FILE *config;
+ int ptr = 0;
+ char buffer[MAXBUF], c_tag[MAXBUF], c;
+ int in_token, in_quotes, tptr, j, idx = 0;
+ char* key;
+
+ if ((config = fopen (filename, "r")) == NULL)
+ {
+ return 0;
+ }
+ else
+ {
+ ptr = 0;
+ in_token = 0;
+ in_quotes = 0;
+ while (!feof(config))
+ {
+ c = fgetc(config);
+ if ((c == '<') && (!in_quotes))
+ {
+ tptr = 0;
+ in_token = 1;
+ do {
+ c = fgetc(config);
+ if (c != ' ')
+ {
+ c_tag[tptr++] = c;
+ c_tag[tptr] = '\0';
+ }
+ } while (c != ' ');
+ }
+ if (c == '"')
+ {
+ in_quotes = (!in_quotes);
+ }
+ if ((c == '>') && (!in_quotes))
+ {
+ in_token = 0;
+ if (idx == index)
+ {
+ if (!strcmp(c_tag,tag))
+ {
+ if ((buffer) && (c_tag) && (var))
+ {
+ key = strstr(buffer,var);
+ if (!key)
+ {
+ /* value not found in tag */
+ fclose(config);
+ return 0;
+ }
+ else
+ {
+ key+=strlen(var);
+ while (key[0] !='"')
+ {
+ if (!strlen(key))
+ {
+ /* missing quote */
+ return 0;
+ }
+ key++;
+ }
+ key++;
+ for (j = 0; j < strlen(key); j++)
+ {
+ if (key[j] == '"')
+ {
+ key[j] = '\0';
+ }
+ }
+ fclose(config);
+ strcpy(result,key);
+ return 1;
+ }
+ }
+ }
+ }
+ 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';
+ }
+ }
+ }
+ }
+ fclose(config);
+ return 0;
+}
+
+
+
+int ConfValue(char* tag, char* var, int index, char *result)
+{
+ ReadConf(CONFIG_FILE, tag, var, index, result);
+}
+
+
+
+/* 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);
+ }
+}
+
+
+/* Open a TCP Socket */
+int OpenTCPSocket (void)
+{
+ int sockfd;
+ int on = 0;
+ 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);
+ }
+}
+
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