X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fcitserver.c;h=0f96bf0686c25664e667996b97ad8f6d51fa1c18;hb=e61f1a6d8553b85b86457ca6ad0e69b2c1d1a2cb;hp=d3cd6ed3d576c305b023372a071b1659ecd7fb7a;hpb=efee1d4b0c8287c4c4daa819d87dffd1c55f62c4;p=citadel.git diff --git a/citadel/citserver.c b/citadel/citserver.c index d3cd6ed3d..0f96bf068 100644 --- a/citadel/citserver.c +++ b/citadel/citserver.c @@ -1,3 +1,5 @@ +/* $Id$ */ +#include "sysdep.h" #include #include #include @@ -7,38 +9,73 @@ #include #include #include -#include +#include #include +#include +#include +#include +#include +#include #include "citadel.h" #include "server.h" -#include "proto.h" - -struct config config; +#include "sysdep_decls.h" +#include "citserver.h" +#include "config.h" +#include "database.h" +#include "housekeeping.h" +#include "user_ops.h" +#include "logging.h" +#include "msgbase.h" +#include "support.h" +#include "locate_host.h" +#include "room_ops.h" +#include "file_ops.h" +#include "dynloader.h" +#include "policy.h" +#include "control.h" +#include "tools.h" struct CitContext *ContextList = NULL; +char *unique_session_numbers; int ScheduledShutdown = 0; +int do_defrag = 0; - /* * Various things that need to be initialized at startup */ -void master_startup() { +void master_startup(void) { lprintf(7, "Opening databases\n"); open_databases(); + if (do_defrag) + defrag_databases(); + lprintf(7, "Checking floor reference counts\n"); check_ref_counts(); + + lprintf(7, "Creating base rooms (if necessary)\n"); + create_room(BASEROOM, 0, "", 0); + create_room(AIDEROOM, 4, "", 0); + create_room(config.c_twitroom, 0, "", 0); } /* * Cleanup routine to be called when the server is shutting down. */ -void master_cleanup() { +void master_cleanup(void) { + struct CleanupFunctionHook *fcn; /* Cancel all running sessions */ lprintf(7, "Cancelling running sessions...\n"); + +/* FIX do something here while (ContextList != NULL) { - kill_session(ContextList->cs_pid); + } + */ + + /* Run any cleanup routines registered by loadable modules */ + for (fcn = CleanupHookTable; fcn != NULL; fcn = fcn->next) { + (*fcn->h_function_pointer)(); } /* Close databases */ @@ -49,62 +86,172 @@ void master_cleanup() { sysdep_master_cleanup(); /* Now go away. */ - hook_cleanup(); lprintf(3, "citserver: exiting.\n"); + fflush(stdout); fflush(stderr); exit(0); } /* - * Gracefully terminate the session and thread. - * (This is called as a cleanup handler by the thread library.) + * Free any per-session data allocated by modules or whatever */ -void cleanup_stuff() +void deallocate_user_data(struct CitContext *con) { - struct ExpressMessage *emptr; + struct CtdlSessData *ptr; + + begin_critical_section(S_SESSION_TABLE); + while (con->FirstSessData != NULL) { + lprintf(9, "Deallocating user data symbol %ld\n", + con->FirstSessData->sym_id); + if (con->FirstSessData->sym_data != NULL) + phree(con->FirstSessData->sym_data); + ptr = con->FirstSessData->next; + phree(con->FirstSessData); + con->FirstSessData = ptr; + } + end_critical_section(S_SESSION_TABLE); +} - lprintf(9, "cleanup_stuff() called\n"); - lprintf(7, "Calling logout(%d)\n", CC->cs_pid); - logout(CC); - rec_log(CL_TERMINATE,CC->curr_user); - unlink(CC->temp); - lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid); - hook_end_session(CC->cs_pid); - syslog(LOG_NOTICE,"session %d ended", CC->cs_pid); - - /* Deallocate any unsent express messages */ + +/* + * Terminate a session and remove its context data structure. + */ +void RemoveContext (struct CitContext *con) +{ + struct CitContext *ptr = NULL; + struct CitContext *ToFree = NULL; + + lprintf(9, "RemoveContext() called\n"); + if (con==NULL) { + lprintf(5, "WARNING: RemoveContext() called with NULL!\n"); + return; + } + + /* Remove the context from the global context list. This needs + * to get done FIRST to avoid concurrency problems. + */ + lprintf(7, "Removing context for session %d\n", con->cs_pid); begin_critical_section(S_SESSION_TABLE); - while (CC->FirstExpressMessage != NULL) { - emptr = CC->FirstExpressMessage; - CC->FirstExpressMessage = CC->FirstExpressMessage->next; - free(emptr); + if (ContextList == con) { + ToFree = ContextList; + ContextList = ContextList->next; + } + else { + for (ptr = ContextList; ptr != NULL; ptr = ptr->next) { + if (ptr->next == con) { + ToFree = ptr->next; + ptr->next = ptr->next->next; + } + } } end_critical_section(S_SESSION_TABLE); - /* Now get rid of the session and context */ - lprintf(7, "cleanup_stuff() is calling RemoveContext(%d)\n", CC->cs_pid); - RemoveContext(CC); - - /* While we still have an extra thread with no user attached to it, - * take the opportunity to do some housekeeping before exiting. - */ - do_housekeeping(); + if (ToFree == NULL) { + lprintf(9, "RemoveContext() found nothing to remove\n"); + return; } + /* Now handle all of the administrivia. */ + lprintf(7, "Calling logout(%d)\n", con->cs_pid); + logout(con); + + rec_log(CL_TERMINATE, con->curr_user); + unlink(con->temp); + lprintf(3, "citserver[%3d]: ended.\n", con->cs_pid); + + /* Run any cleanup routines registered by loadable modules */ + PerformSessionHooks(EVT_STOP); + + syslog(LOG_NOTICE,"session %d ended", con->cs_pid); + + /* Deallocate any user-data attached to this session */ + deallocate_user_data(con); + + /* If the client is still connected, blow 'em away. */ + lprintf(7, "Closing socket %d\n", con->client_socket); + close(con->client_socket); + + /* Tell the housekeeping thread to check to see if this is the time + * to initiate a scheduled shutdown event. + */ + enter_housekeeping_cmd("SCHED_SHUTDOWN"); + + /* Free up the memory used by this context */ + phree(con); + + lprintf(7, "Done with RemoveContext()\n"); +} + + + +/* + * Get a dynamic symbol number for per-session user data. + * This API call should be made only ONCE per symbol per citserver run. + */ +int CtdlGetDynamicSymbol() +{ + static unsigned int next_symbol = SYM_MAX; + return ++next_symbol; +} + + + +/* + * Return a pointer to some generic per-session user data. + * (This function returns NULL if the requested symbol is not allocated.) + * + * NOTE: we use critical sections for allocating and de-allocating these, + * but not for locating one. + */ +void *CtdlGetUserData(unsigned long requested_sym) +{ + struct CtdlSessData *ptr; + + for (ptr = CC->FirstSessData; ptr != NULL; ptr = ptr->next) + if (ptr->sym_id == requested_sym) + return(ptr->sym_data); + + lprintf(2, "ERROR! CtdlGetUserData(%ld) symbol not allocated\n", + requested_sym); + return NULL; +} + /* - * set_wtmpsupp() - alter the session listing + * Allocate some generic per-session user data. */ -void set_wtmpsupp(char *newtext) +void CtdlAllocUserData(unsigned long requested_sym, size_t num_bytes) { - strncpy(CC->cs_room,newtext,19); - CC->cs_room[19] = 0; - time(&CC->cs_lastupdt); - hook_room_name(CC->cs_pid, CC->cs_room); + struct CtdlSessData *ptr; + + lprintf(9, "CtdlAllocUserData(%ld) called\n", requested_sym); + + /* Fail silently if the symbol is already registered. */ + for (ptr = CC->FirstSessData; ptr != NULL; ptr = ptr->next) { + if (ptr->sym_id == requested_sym) { + return; + } } + /* Grab us some memory! Dem's good eatin' !! */ + ptr = mallok(sizeof(struct CtdlSessData)); + ptr->sym_id = requested_sym; + ptr->sym_data = mallok(num_bytes); + + begin_critical_section(S_SESSION_TABLE); + ptr->next = CC->FirstSessData; + CC->FirstSessData = ptr; + end_critical_section(S_SESSION_TABLE); + + lprintf(9, "CtdlAllocUserData(%ld) finished\n", requested_sym); +} + + + + + /* * cmd_info() - tell the client about this server @@ -122,65 +269,122 @@ void cmd_info(void) { cprintf("%d\n",SERVER_TYPE); cprintf("%s\n",config.c_moreprompt); cprintf("1\n"); /* 1 = yes, this system supports floors */ + cprintf("1\n"); /* 1 = we support the extended paging options */ cprintf("000\n"); } -void cmd_rchg(char *newroomname) +void cmd_rchg(char *argbuf) { - if ((newroomname) && (newroomname[0])) - { - bzero(CC->fake_roomname, 20); - strncpy(CC->fake_roomname, newroomname, 19); - } - else - CC->fake_roomname[0] = '\0'; - cprintf("%d\n",OK); + char newroomname[256]; + + extract(newroomname, argbuf, 0); + newroomname[ROOMNAMELEN-1] = 0; + if (strlen(newroomname) > 0) { + safestrncpy(CC->fake_roomname, newroomname, + sizeof(CC->fake_roomname) ); + } + else { + strcpy(CC->fake_roomname, ""); + } + cprintf("%d OK\n", OK); } -void cmd_hchg(char *newhostname) +void cmd_hchg(char *argbuf) { - if ((newhostname) && (newhostname[0])) - { - bzero(CC->fake_hostname, 25); - strncpy(CC->fake_hostname, newhostname, 24); - } - else - CC->fake_hostname[0] = '\0'; - cprintf("%d\n",OK); + char newhostname[256]; + + extract(newhostname, argbuf, 0); + if (strlen(newhostname) > 0) { + safestrncpy(CC->fake_hostname, newhostname, + sizeof(CC->fake_hostname) ); + } + else { + strcpy(CC->fake_hostname, ""); + } + cprintf("%d OK\n", OK); } -void cmd_uchg(char *newusername) +void cmd_uchg(char *argbuf) { - if (CC->usersupp.axlevel < 6) - { - cprintf("%d You must be an Aide to use UCHG.\n", - ERROR+HIGHER_ACCESS_REQUIRED); - return; - } - if ((newusername) && (newusername[0])) - { - CC->cs_flags &= ~CS_STEALTH; - bzero(CC->fake_username, 32); - if (struncmp(newusername, CC->curr_user, strlen(CC->curr_user))) - strncpy(CC->fake_username, newusername, 31); - } - else - { - CC->fake_username[0] = '\0'; - CC->cs_flags |= CS_STEALTH; - } - cprintf("%d\n",OK); + + char newusername[256]; + + extract(newusername, argbuf, 0); + + if (CC->usersupp.axlevel < 6) { + cprintf("%d You must be an Aide to masquerade your name.\n", + ERROR+HIGHER_ACCESS_REQUIRED); + return; + } + + if (strlen(newusername) > 0) { + CC->cs_flags &= ~CS_STEALTH; + memset(CC->fake_username, 0, 32); + if (strncasecmp(newusername, CC->curr_user, + strlen(CC->curr_user))) + safestrncpy(CC->fake_username, newusername, + sizeof(CC->fake_username)); + } + else { + CC->fake_username[0] = '\0'; + CC->cs_flags |= CS_STEALTH; + } + cprintf("%d\n",OK); } -void cmd_time() + + +/* + * returns an asterisk if there are any express messages waiting, + * space otherwise. + */ +char check_express(void) { + if (CC->FirstExpressMessage == NULL) { + return(' '); + } + else { + return('*'); + } + } + +void cmd_time(void) { time_t tv; tv = time(NULL); - cprintf("%d|%ld\n", OK, tv); + cprintf("%d %ld\n", OK, tv); } +/* + * Check whether two hostnames match. + * "Realname" should be an actual name of a client that is trying to connect; + * "testname" should be the value we are comparing it with. The idea is that we + * want to compare with both the abbreviated and fully-qualified versions of + * "testname;" some people define "localhost" as "localhost.foo.com," etc. + */ +static int hostnames_match(const char *realname, const char *testname) { + struct hostent *he; + int retval = 0; + + if (!strcasecmp(realname, testname)) + return 1; + +#ifdef HAVE_NONREENTRANT_NETDB + begin_critical_section(S_NETDB); +#endif + + if ((he = gethostbyname(testname)) != NULL) + if (!strcasecmp(realname, he->h_name)) + retval = 1; + +#ifdef HAVE_NONREENTRANT_NETDB + end_critical_section(S_NETDB); +#endif + + return retval; + } + /* * check a hostname against the public_clients file */ @@ -189,8 +393,8 @@ int is_public_client(char *where) char buf[256]; FILE *fp; - if (!strucmp(where,"localhost")) return(1); - if (!strucmp(where,config.c_fqdn)) return(1); + if (hostnames_match(where,"localhost")) return(1); + if (hostnames_match(where,config.c_fqdn)) return(1); fp = fopen("public_clients","r"); if (fp == NULL) return(0); @@ -198,7 +402,7 @@ int is_public_client(char *where) while (fgets(buf,256,fp)!=NULL) { while (isspace((buf[strlen(buf)-1]))) buf[strlen(buf)-1] = 0; - if (!strucmp(buf,where)) { + if (hostnames_match(where,buf)) { fclose(fp); return(1); } @@ -219,6 +423,7 @@ void cmd_iden(char *argbuf) int rev_level; char desc[256]; char from_host[256]; + struct in_addr addr; if (num_parms(argbuf)<4) { cprintf("%d usage error\n",ERROR); @@ -230,21 +435,26 @@ void cmd_iden(char *argbuf) rev_level = extract_int(argbuf,2); extract(desc,argbuf,3); - strcpy(from_host,config.c_fqdn); + safestrncpy(from_host, config.c_fqdn, sizeof from_host); + from_host[sizeof from_host - 1] = 0; if (num_parms(argbuf)>=5) extract(from_host,argbuf,4); CC->cs_clientdev = dev_code; CC->cs_clienttyp = cli_code; CC->cs_clientver = rev_level; - strncpy(CC->cs_clientname,desc,31); + safestrncpy(CC->cs_clientname, desc, sizeof CC->cs_clientname); CC->cs_clientname[31] = 0; + lprintf(9, "Looking up hostname '%s'\n", from_host); if ((strlen(from_host)>0) && (is_public_client(CC->cs_host))) { - strncpy(CC->cs_host,from_host,24); - CC->cs_host[24] = 0; + if (inet_aton(from_host, &addr)) + locate_host(CC->cs_host, &addr); + else { + safestrncpy(CC->cs_host, from_host, sizeof CC->cs_host); + CC->cs_host[24] = 0; + } } - set_wtmpsupp(CC->quickroom.QRname); syslog(LOG_NOTICE,"client %d/%d/%01d.%02d (%s)\n", dev_code, @@ -286,7 +496,6 @@ void cmd_stel(char *cmdbuf) CC->cs_flags = CC->cs_flags|CS_STEALTH; } - set_wtmpsupp(CC->quickroom.QRname); cprintf("%d Ok\n",OK); } @@ -306,13 +515,13 @@ void cmd_mesg(char *mname) extract(buf,mname,0); - dirs[0]=malloc(64); - dirs[1]=malloc(64); + dirs[0]=mallok(64); + dirs[1]=mallok(64); strcpy(dirs[0],"messages"); strcpy(dirs[1],"help"); mesg_locate(targ,buf,2,dirs); - free(dirs[0]); - free(dirs[1]); + phree(dirs[0]); + phree(dirs[1]); if (strlen(targ)==0) { @@ -361,16 +570,16 @@ void cmd_emsg(char *mname) if (buf[a] == '/') buf[a] = '.'; } - dirs[0]=malloc(64); - dirs[1]=malloc(64); + dirs[0]=mallok(64); + dirs[1]=mallok(64); strcpy(dirs[0],"messages"); strcpy(dirs[1],"help"); mesg_locate(targ,buf,2,dirs); - free(dirs[0]); - free(dirs[1]); + phree(dirs[0]); + phree(dirs[1]); if (strlen(targ)==0) { - sprintf(targ, "./help/%s", buf); + snprintf(targ, sizeof targ, "./help/%s", buf); } mfp = fopen(targ,"w"); @@ -389,6 +598,34 @@ void cmd_emsg(char *mname) } +/* Don't show the names of private rooms unless the viewing + * user also knows the rooms. + */ +void GenerateRoomDisplay(char *real_room, + struct CitContext *viewed, + struct CitContext *viewer) { + + strcpy(real_room, viewed->quickroom.QRname); + if (viewed->quickroom.QRflags & QR_MAILBOX) { + strcpy(real_room, &real_room[11]); + } + if (viewed->quickroom.QRflags & QR_PRIVATE) { + if ( (CtdlRoomAccess(&viewed->quickroom, &viewer->usersupp) + & UA_KNOWN) == 0) { + strcpy(real_room, ""); + } + } + + if (viewed->cs_flags & CS_CHAT) { + while (strlen(real_room) < 14) + strcat(real_room, " "); + + strcpy(&real_room[14], ""); + } + +} + + /* * who's online */ @@ -396,10 +633,12 @@ void cmd_rwho(void) { struct CitContext *cptr; int spoofed = 0; int aide; - char un[40], room[40], host[40], flags[5]; + char un[40]; + char real_room[ROOMNAMELEN], room[ROOMNAMELEN]; + char host[40], flags[5]; aide = CC->usersupp.axlevel >= 6; - cprintf("%d\n",LISTING_FOLLOWS); + cprintf("%d%c \n", LISTING_FOLLOWS, check_express() ); for (cptr = ContextList; cptr != NULL; cptr = cptr->next) { @@ -427,14 +666,15 @@ void cmd_rwho(void) { else strcpy(host, cptr->cs_host); - if (cptr->fake_roomname[0]) - { - strcpy(room, cptr->fake_roomname); - spoofed = 1; + GenerateRoomDisplay(real_room, cptr, CC); + + if (cptr->fake_roomname[0]) { + strcpy(room, cptr->fake_roomname); + spoofed = 1; + } + else { + strcpy(room, real_room); } - else - strcpy(room, cptr->cs_room); - if ((aide) && (spoofed)) strcat(flags, "+"); @@ -453,13 +693,20 @@ void cmd_rwho(void) { if ((spoofed) && (aide)) { cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n", - cptr->cs_pid, cptr->curr_user, cptr->cs_room, + cptr->cs_pid, cptr->curr_user, + real_room, cptr->cs_host, cptr->cs_clientname, (long)(cptr->lastidle), cptr->lastcmdname, flags); } } + + /* Now it's magic time. Before we finish, call any EVT_RWHO hooks + * so that external paging modules such as serv_icq can add more + * content to the Wholist. + */ + PerformSessionHooks(EVT_RWHO); cprintf("000\n"); } @@ -471,6 +718,7 @@ void cmd_term(char *cmdbuf) { int session_num; struct CitContext *ccptr; + int found_it = 0; if (!CC->logged_in) { cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN); @@ -489,15 +737,22 @@ void cmd_term(char *cmdbuf) return; } + lprintf(9, "Locating session to kill\n"); + begin_critical_section(S_SESSION_TABLE); for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) { if (session_num == ccptr->cs_pid) { - kill_session(ccptr->cs_pid); - cprintf("%d Session terminated.\n", OK); - return; + ccptr->kill_me = 1; + found_it = 1; } } + end_critical_section(S_SESSION_TABLE); - cprintf("%d No such session.\n", ERROR); + if (found_it) { + cprintf("%d Session terminated.\n", OK); + } + else { + cprintf("%d No such session.\n", ERROR); + } } @@ -537,6 +792,7 @@ void cmd_ipgm(char *argbuf) } else { cprintf("%d Authentication failed.\n",ERROR); + lprintf(3, "Warning: ipgm authentication failed.\n"); } } @@ -546,7 +802,7 @@ void cmd_ipgm(char *argbuf) */ void cmd_down(void) { if (!CC->logged_in) { - cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN); + cprintf("%d Not logged in.\n", ERROR+NOT_LOGGED_IN); return; } @@ -561,7 +817,7 @@ void cmd_down(void) { } /* - * Shut down the server + * Schedule or cancel a server shutdown */ void cmd_scdn(char *argbuf) { @@ -585,428 +841,464 @@ void cmd_scdn(char *argbuf) cprintf("%d %d\n", OK, ScheduledShutdown); } + /* - * main context loop + * */ -void *context_loop(struct CitContext *con) +void begin_session(struct CitContext *con) { - char cmdbuf[256]; - int session_num; - - /* - * Wedge our way into the context table. - */ - InitMyContext(con); + int num_sessions, len; + struct sockaddr_in sin; /* * Initialize some variables specific to our context. */ - CC->curr_rm = (-1); - CC->logged_in = 0; - CC->internal_pgm = 0; - CC->download_fp = NULL; - CC->upload_fp = NULL; - CC->cs_pid = con->client_socket; /* not necessarily portable */ - CC->FirstExpressMessage = NULL; - time(&CC->lastcmd); - time(&CC->lastidle); - strcpy(CC->lastcmdname, " "); - strcpy(CC->cs_clientname, "(unknown)"); - strcpy(CC->curr_user,""); - strcpy(CC->net_node,""); - sprintf(CC->temp,"/tmp/CitServer.%d.%d", getpid(), CC->cs_pid); - strcpy(CC->cs_room, ""); - strcpy(CC->cs_host, config.c_fqdn); - locate_host(CC->cs_host); - CC->cs_flags = 0; - CC->upload_type = UPL_FILE; - CC->dl_is_net = 0; - - session_num = session_count(); - CC->nologin = 0; - if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions)) - CC->nologin = 1; - - if (CC->nologin==1) { - cprintf("%d %s: Too many users are already online (maximum is %d)\n", - ERROR+MAX_SESSIONS_EXCEEDED, - config.c_nodename,config.c_maxsessions); + con->logged_in = 0; + con->internal_pgm = 0; + con->download_fp = NULL; + con->upload_fp = NULL; + con->FirstExpressMessage = NULL; + time(&con->lastcmd); + time(&con->lastidle); + strcpy(con->lastcmdname, " "); + strcpy(con->cs_clientname, "(unknown)"); + strcpy(con->curr_user,"(not logged in)"); + strcpy(con->net_node,""); + snprintf(con->temp, sizeof con->temp, tmpnam(NULL)); + safestrncpy(con->cs_host, config.c_fqdn, sizeof con->cs_host); + con->cs_host[sizeof con->cs_host - 1] = 0; + len = sizeof sin; + if (!getpeername(con->client_socket, (struct sockaddr *) &sin, &len)) + locate_host(con->cs_host, &sin.sin_addr); + con->cs_flags = 0; + con->upload_type = UPL_FILE; + con->dl_is_net = 0; + con->FirstSessData = NULL; + + num_sessions = session_count(); + con->nologin = 0; + if ((config.c_maxsessions > 0)&&(num_sessions > config.c_maxsessions)) + con->nologin = 1; + + if (con->nologin==1) { + cprintf("%d %s: Too many users are already online " + "(maximum is %d)\n", + ERROR+MAX_SESSIONS_EXCEEDED, + config.c_nodename, config.c_maxsessions); } else { - cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename); - } - - lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid); - hook_start_session(CC->cs_pid); - - do { - time(&CC->lastcmd); - if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL); - lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf); - hook_command_received(CC->cs_pid, cmdbuf); - - /* - * Let other clients see the last command we executed, but - * exclude NOOP because that would be boring. - */ - if (struncmp(cmdbuf, "NOOP", 4)) { - strcpy(CC->lastcmdname, " "); - strncpy(CC->lastcmdname, cmdbuf, 4); - time(&CC->lastidle); - } - - if ((struncmp(cmdbuf, "ENT0", 4)) && (struncmp(cmdbuf, "MESG", 4)) && (struncmp(cmdbuf, "MSGS", 4))) - { - CC->cs_flags &= ~CS_POSTING; + cprintf("%d %s Citadel/UX server ready.\n", + OK, config.c_nodename); } - + + lprintf(3, "citserver[%3d]: started.\n", con->cs_pid); + + /* Run any session startup routines registered by loadable modules */ + PerformSessionHooks(EVT_START); + + rec_log(CL_CONNECT, ""); +} + + + + /* * This loop recognizes all server commands. */ +void do_command_loop(void) { + char cmdbuf[256]; - if (!struncmp(cmdbuf,"NOOP",4)) { - cprintf("%d%cok\n",OK,check_express()); - } + time(&CC->lastcmd); + memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */ + if (client_gets(cmdbuf) < 1) { + lprintf(3, "Client socket is broken. Ending session.\n"); + CC->kill_me = 1; + return; + } + lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf); - else if (!struncmp(cmdbuf,"QUIT",4)) { - cprintf("%d Goodbye.\n",OK); - } + /* + * Let other clients see the last command we executed, and + * update the idle time, but not NOOP, PEXP, or GEXP. + */ + if ( (strncasecmp(cmdbuf, "NOOP", 4)) + && (strncasecmp(cmdbuf, "PEXP", 4)) + && (strncasecmp(cmdbuf, "GEXP", 4)) ) { + strcpy(CC->lastcmdname, " "); + safestrncpy(CC->lastcmdname, cmdbuf, + sizeof(CC->lastcmdname) ); + time(&CC->lastidle); + } + + if ((strncasecmp(cmdbuf, "ENT0", 4)) + && (strncasecmp(cmdbuf, "MESG", 4)) + && (strncasecmp(cmdbuf, "MSGS", 4))) + { + CC->cs_flags &= ~CS_POSTING; + } + + if (!strncasecmp(cmdbuf,"NOOP",4)) { + cprintf("%d%cok\n",OK,check_express()); + } - else if (!struncmp(cmdbuf,"LOUT",4)) { - if (CC->logged_in) logout(CC); - cprintf("%d logged out.\n",OK); - } + else if (!strncasecmp(cmdbuf,"QUIT",4)) { + cprintf("%d Goodbye.\n",OK); + CC->kill_me = 1; + } - else if (!struncmp(cmdbuf,"USER",4)) { - cmd_user(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"LOUT",4)) { + if (CC->logged_in) logout(CC); + cprintf("%d logged out.\n",OK); + } - else if (!struncmp(cmdbuf,"PASS",4)) { - cmd_pass(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"USER",4)) { + cmd_user(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"NEWU",4)) { - cmd_newu(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"PASS",4)) { + cmd_pass(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"SETP",4)) { - cmd_setp(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"NEWU",4)) { + cmd_newu(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"LRMS",4)) { - cmd_lrms(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"SETP",4)) { + cmd_setp(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"LKRA",4)) { - cmd_lkra(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"LRMS",4)) { + cmd_lrms(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"LKRN",4)) { - cmd_lkrn(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"LKRA",4)) { + cmd_lkra(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"LKRO",4)) { - cmd_lkro(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"LKRN",4)) { + cmd_lkrn(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"LZRM",4)) { - cmd_lzrm(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"LKRO",4)) { + cmd_lkro(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"GETU",4)) { - cmd_getu(); - } + else if (!strncasecmp(cmdbuf,"LZRM",4)) { + cmd_lzrm(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"SETU",4)) { - cmd_setu(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"GETU",4)) { + cmd_getu(); + } - else if (!struncmp(cmdbuf,"GOTO",4)) { - cmd_goto(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"SETU",4)) { + cmd_setu(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"MSGS",4)) { - cmd_msgs(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"GOTO",4)) { + cmd_goto(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"WHOK",4)) { - cmd_whok(); - } + else if (!strncasecmp(cmdbuf,"MSGS",4)) { + cmd_msgs(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"RDIR",4)) { - cmd_rdir(); - } + else if (!strncasecmp(cmdbuf,"WHOK",4)) { + cmd_whok(); + } - else if (!struncmp(cmdbuf,"MSG0",4)) { - cmd_msg0(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"RDIR",4)) { + cmd_rdir(); + } - else if (!struncmp(cmdbuf,"MSG2",4)) { - cmd_msg2(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"MSG0",4)) { + cmd_msg0(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"MSG3",4)) { - cmd_msg3(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"MSG2",4)) { + cmd_msg2(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"INFO",4)) { - cmd_info(); - } + else if (!strncasecmp(cmdbuf,"MSG3",4)) { + cmd_msg3(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"SLRP",4)) { - cmd_slrp(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"MSG4",4)) { + cmd_msg4(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"INVT",4)) { - cmd_invt_kick(&cmdbuf[5],1); - } + else if (!strncasecmp(cmdbuf,"OPNA",4)) { + cmd_opna(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"KICK",4)) { - cmd_invt_kick(&cmdbuf[5],0); - } + else if (!strncasecmp(cmdbuf,"INFO",4)) { + cmd_info(); + } - else if (!struncmp(cmdbuf,"GETR",4)) { - cmd_getr(); - } + else if (!strncasecmp(cmdbuf,"SLRP",4)) { + cmd_slrp(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"SETR",4)) { - cmd_setr(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"INVT",4)) { + cmd_invt_kick(&cmdbuf[5],1); + } - else if (!struncmp(cmdbuf,"GETA",4)) { - cmd_geta(); - } + else if (!strncasecmp(cmdbuf,"KICK",4)) { + cmd_invt_kick(&cmdbuf[5],0); + } - else if (!struncmp(cmdbuf,"SETA",4)) { - cmd_seta(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"GETR",4)) { + cmd_getr(); + } - else if (!struncmp(cmdbuf,"ENT0",4)) { - cmd_ent0(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"SETR",4)) { + cmd_setr(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"ENT3",4)) { - cmd_ent3(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"GETA",4)) { + cmd_geta(); + } - else if (!struncmp(cmdbuf,"RINF",4)) { - cmd_rinf(); - } + else if (!strncasecmp(cmdbuf,"SETA",4)) { + cmd_seta(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"DELE",4)) { - cmd_dele(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"ENT0",4)) { + cmd_ent0(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"KILL",4)) { - cmd_kill(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"ENT3",4)) { + cmd_ent3(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"CRE8",4)) { - cmd_cre8(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"RINF",4)) { + cmd_rinf(); + } - else if (!struncmp(cmdbuf,"MOVE",4)) { - cmd_move(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"DELE",4)) { + cmd_dele(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"FORG",4)) { - cmd_forg(); - } + else if (!strncasecmp(cmdbuf,"KILL",4)) { + cmd_kill(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"MESG",4)) { - cmd_mesg(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"CRE8",4)) { + cmd_cre8(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"EMSG",4)) { - cmd_emsg(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"MOVE",4)) { + cmd_move(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"GNUR",4)) { - cmd_gnur(); - } + else if (!strncasecmp(cmdbuf,"FORG",4)) { + cmd_forg(); + } - else if (!struncmp(cmdbuf,"GREG",4)) { - cmd_greg(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"MESG",4)) { + cmd_mesg(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"VALI",4)) { - cmd_vali(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"EMSG",4)) { + cmd_emsg(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"EINF",4)) { - cmd_einf(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"GNUR",4)) { + cmd_gnur(); + } - else if (!struncmp(cmdbuf,"LIST",4)) { - cmd_list(); - } + else if (!strncasecmp(cmdbuf,"VALI",4)) { + cmd_vali(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"REGI",4)) { - cmd_regi(); - } + else if (!strncasecmp(cmdbuf,"EINF",4)) { + cmd_einf(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"CHEK",4)) { - cmd_chek(); - } + else if (!strncasecmp(cmdbuf,"LIST",4)) { + cmd_list(); + } - else if (!struncmp(cmdbuf,"DELF",4)) { - cmd_delf(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"CHEK",4)) { + cmd_chek(); + } - else if (!struncmp(cmdbuf,"MOVF",4)) { - cmd_movf(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"DELF",4)) { + cmd_delf(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"NETF",4)) { - cmd_netf(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"MOVF",4)) { + cmd_movf(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"RWHO",4)) { - cmd_rwho(); - } + else if (!strncasecmp(cmdbuf,"NETF",4)) { + cmd_netf(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"OPEN",4)) { - cmd_open(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"RWHO",4)) { + cmd_rwho(); + } - else if (!struncmp(cmdbuf,"CLOS",4)) { - cmd_clos(); - } + else if (!strncasecmp(cmdbuf,"OPEN",4)) { + cmd_open(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"UOPN",4)) { - cmd_uopn(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"CLOS",4)) { + cmd_clos(); + } - else if (!struncmp(cmdbuf,"UCLS",4)) { - cmd_ucls(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"UOPN",4)) { + cmd_uopn(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"READ",4)) { - cmd_read(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"UCLS",4)) { + cmd_ucls(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"WRIT",4)) { - cmd_writ(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"READ",4)) { + cmd_read(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"QUSR",4)) { - cmd_qusr(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"WRIT",4)) { + cmd_writ(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"ECHO",4)) { - cmd_echo(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"QUSR",4)) { + cmd_qusr(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"OIMG",4)) { - cmd_oimg(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"ECHO",4)) { + cmd_echo(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"MORE",4)) { - cmd_more(); - } + else if (!strncasecmp(cmdbuf,"OIMG",4)) { + cmd_oimg(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"NETP",4)) { - cmd_netp(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"MORE",4)) { + cmd_more(); + } - else if (!struncmp(cmdbuf,"NDOP",4)) { - cmd_ndop(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"NETP",4)) { + cmd_netp(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"NUOP",4)) { - cmd_nuop(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"NDOP",4)) { + cmd_ndop(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"LFLR",4)) { - cmd_lflr(); - } + else if (!strncasecmp(cmdbuf,"NUOP",4)) { + cmd_nuop(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"CFLR",4)) { - cmd_cflr(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"LFLR",4)) { + cmd_lflr(); + } - else if (!struncmp(cmdbuf,"KFLR",4)) { - cmd_kflr(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"CFLR",4)) { + cmd_cflr(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"EFLR",4)) { - cmd_eflr(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"KFLR",4)) { + cmd_kflr(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"IDEN",4)) { - cmd_iden(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"EFLR",4)) { + cmd_eflr(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"IPGM",4)) { - cmd_ipgm(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"IDEN",4)) { + cmd_iden(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"CHAT",4)) { - cmd_chat(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"IPGM",4)) { + cmd_ipgm(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"PEXP",4)) { - cmd_pexp(); - } + else if (!strncasecmp(cmdbuf,"EBIO",4)) { + cmd_ebio(); + } - else if (!struncmp(cmdbuf,"SEXP",4)) { - cmd_sexp(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"RBIO",4)) { + cmd_rbio(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"EBIO",4)) { - cmd_ebio(); - } + else if (!strncasecmp(cmdbuf,"LBIO",4)) { + cmd_lbio(); + } - else if (!struncmp(cmdbuf,"RBIO",4)) { - cmd_rbio(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"STEL",4)) { + cmd_stel(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"LBIO",4)) { - cmd_lbio(); - } + else if (!strncasecmp(cmdbuf,"TERM",4)) { + cmd_term(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"STEL",4)) { - cmd_stel(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"DOWN",4)) { + cmd_down(); + } - else if (!struncmp(cmdbuf,"TERM",4)) { - cmd_term(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf,"SCDN",4)) { + cmd_scdn(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"DOWN",4)) { - cmd_down(); - } + else if (!strncasecmp(cmdbuf, "NSET", 4)) { + cmd_nset(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf,"SCDN",4)) { - cmd_scdn(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf, "UIMG", 4)) { + cmd_uimg(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf, "NSET", 4)) { - cmd_nset(&cmdbuf[5]); - } + else if (!strncasecmp(cmdbuf, "UCHG", 4)) { + cmd_uchg(&cmdbuf[5]); + } - else if (!struncmp(cmdbuf, "UIMG", 4)) { - cmd_uimg(&cmdbuf[5]); - } - else if (!struncmp(cmdbuf, "UCHG", 4)) { - cmd_uchg(&cmdbuf[5]); - } - else if (!struncmp(cmdbuf, "TIME", 4)) { - cmd_time(&cmdbuf[5]); - } - else if (!struncmp(cmdbuf, "HCHG", 4)) { - cmd_hchg(&cmdbuf[5]); - } - else if (!struncmp(cmdbuf, "RCHG", 4)) { - cmd_rchg(&cmdbuf[5]); - } - else { - cprintf("%d Unrecognized or unsupported command.\n", - ERROR); - } + else if (!strncasecmp(cmdbuf, "TIME", 4)) { + cmd_time(); + } + + else if (!strncasecmp(cmdbuf, "HCHG", 4)) { + cmd_hchg(&cmdbuf[5]); + } - } while(struncmp(cmdbuf,"QUIT",4)); + else if (!strncasecmp(cmdbuf, "RCHG", 4)) { + cmd_rchg(&cmdbuf[5]); + } - cleanup(EXIT_NORMAL); - return(NULL); - } + else if (!strncasecmp(cmdbuf, "AGUP", 4)) { + cmd_agup(&cmdbuf[5]); + } + + else if (!strncasecmp(cmdbuf, "ASUP", 4)) { + cmd_asup(&cmdbuf[5]); + } + + else if (!strncasecmp(cmdbuf, "GPEX", 4)) { + cmd_gpex(&cmdbuf[5]); + } + + else if (!strncasecmp(cmdbuf, "SPEX", 4)) { + cmd_spex(&cmdbuf[5]); + } + + else if (!strncasecmp(cmdbuf, "CONF", 4)) { + cmd_conf(&cmdbuf[5]); + } + +#ifdef DEBUG_MEMORY_LEAKS + else if (!strncasecmp(cmdbuf, "LEAK", 4)) { + dump_tracked(); + } +#endif + + else if (!DLoader_Exec_Cmd(cmdbuf)) + { + cprintf("%d Unrecognized or unsupported command.\n", + ERROR); + } + + /* Run any after-each-command outines registered by modules */ + PerformSessionHooks(EVT_CMD); +}