2 * Citadel/UX Intelligent Network Processor for IGnet/Open networks v3.6
3 * Designed and written by Art Cancro @ Uncensored Communications Group
4 * See copyright.txt for copyright information
8 /* How long it takes for an old node to drop off the network map */
9 #define EXPIRY_TIME (2592000L)
11 /* Where do we keep our lock file? */
12 #define LOCKFILE "/var/lock/LCK.netproc"
14 /* Path to the 'uudecode' utility (needed for network file transfers) */
15 #define UUDECODE "/usr/bin/uudecode"
17 /* Uncomment the DEBUG def to see noisy traces */
24 #include <sys/types.h>
37 /* A list of users you wish to filter out of incoming traffic can be kept
38 * in ./network/filterlist -- messages from these users will be automatically
39 * moved to FILTERROOM. Normally this will be the same as TWITROOM (the
40 * room problem user messages are moved to) but you can override this by
41 * specifying a different room name here.
44 #define FILTERROOM TWITROOM
50 char m_rmname[ROOMNAMELEN];
55 char rm_name[ROOMNAMELEN];
60 struct filterlist *next;
95 void attach_to_server(int argc, char **argv);
96 void serv_read(char *buf, int bytes);
97 void serv_write(char *buf, int nbytes);
98 void get_config(void);
100 struct filterlist *filter = NULL;
101 struct syslist *slist = NULL;
103 struct config config;
104 extern char bbs_home_directory[];
105 extern int home_specified;
108 #ifndef HAVE_STRERROR
110 * replacement strerror() for systems that don't have it
112 char *strerror(int e)
116 sprintf(buf,"errno = %d",e);
122 void strip_trailing_whitespace(char *buf)
124 while(isspace(buf[strlen(buf)-1]))
125 buf[strlen(buf)-1]=0;
130 * we also load the network/mail.sysinfo table into memory, make changes
131 * as we learn more about the network from incoming messages, and write
132 * the table back to disk when we're done.
134 int load_syslist(void) {
136 struct syslist *stemp;
140 fp=fopen("network/mail.sysinfo","rb");
141 if (fp==NULL) return(1);
144 if (fgets(buf,128,fp)==NULL) {
148 buf[strlen(buf)-1] = 0;
149 while (isspace(buf[0])) strcpy(buf,&buf[1]);
150 if (buf[0]=='#') buf[0]=0;
151 if ( (insys==0) && (strlen(buf)!=0) ) {
153 stemp =(struct syslist *)malloc(sizeof(struct syslist));
156 strcpy(slist->s_name,buf);
157 strcpy(slist->s_type,"bin");
158 strcpy(slist->s_nexthop,"Mail");
159 slist->s_lastcontact = 0L;
160 strcpy(slist->s_humannode,"");
161 strcpy(slist->s_phonenum,"");
162 strcpy(slist->s_gdom,"");
164 else if ( (insys==1) && (strlen(buf)==0) ) {
167 else if ( (insys==1) && (!strncmp(buf,"bin",3)) ) {
168 strcpy(slist->s_type,"bin");
169 strcpy(slist->s_nexthop,&buf[4]);
171 else if ( (insys==1) && (!strncmp(buf,"use",3)) ) {
172 strcpy(slist->s_type,"use");
173 strcpy(slist->s_nexthop,&buf[4]);
175 else if ( (insys==1) && (!strncmp(buf,"uum",3)) ) {
176 strcpy(slist->s_type,"uum");
177 strcpy(slist->s_nexthop,&buf[4]);
179 else if ( (insys==1) && (!strncmp(buf,"lastcontact",11)) ) {
180 sscanf(&buf[12],"%ld",&slist->s_lastcontact);
182 else if ( (insys==1) && (!strncmp(buf,"humannode",9)) ) {
183 strcpy(slist->s_humannode,&buf[10]);
185 else if ( (insys==1) && (!strncmp(buf,"phonenum",8)) ) {
186 strcpy(slist->s_phonenum,&buf[9]);
188 else if ( (insys==1) && (!strncmp(buf,"gdom",4)) ) {
189 strcpy(slist->s_gdom,&buf[5]);
194 /* now we have to set up two "special" nodes on the list: one
195 * for the local node, and one for an Internet gateway
197 void setup_special_nodes(void) {
198 struct syslist *stemp,*slocal;
201 for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
202 if (!strcasecmp(stemp->s_name,config.c_nodename)) slocal=stemp;
205 slocal =(struct syslist *)malloc(sizeof(struct syslist));
206 slocal->next = slist;
209 strcpy(slocal->s_name,config.c_nodename);
210 strcpy(slocal->s_type,"bin");
211 strcpy(slocal->s_nexthop,"Mail");
212 time(&slocal->s_lastcontact);
213 strcpy(slocal->s_humannode,config.c_humannode);
214 strcpy(slocal->s_phonenum,config.c_phonenum);
217 for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
218 if (!strcasecmp(stemp->s_name,"internet")) slocal=stemp;
221 slocal =(struct syslist *)malloc(sizeof(struct syslist));
222 slocal->next = slist;
225 strcpy(slocal->s_name,"internet");
226 strcpy(slocal->s_type,"uum");
227 strcpy(slocal->s_nexthop,"%s");
228 time(&slocal->s_lastcontact);
229 strcpy(slocal->s_humannode,"Internet Gateway");
230 strcpy(slocal->s_phonenum,"");
231 strcpy(slocal->s_gdom,"");
236 * here's the routine to write the table back to disk.
238 void rewrite_syslist(void) {
239 struct syslist *stemp;
244 newfp=fopen("network/mail.sysinfo","w");
245 for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
246 if (!strcasecmp(stemp->s_name,config.c_nodename)) {
247 time(&stemp->s_lastcontact);
248 strcpy(stemp->s_type,"bin");
249 strcpy(stemp->s_humannode,config.c_humannode);
250 strcpy(stemp->s_phonenum,config.c_phonenum);
252 /* remove systems we haven't heard from in a while */
253 if ( (stemp->s_lastcontact == 0L)
254 || (now - stemp->s_lastcontact < EXPIRY_TIME) ) {
255 fprintf(newfp,"%s\n%s %s\n",
256 stemp->s_name,stemp->s_type,stemp->s_nexthop);
257 if (strlen(stemp->s_phonenum) > 0)
258 fprintf(newfp,"phonenum %s\n",stemp->s_phonenum);
259 if (strlen(stemp->s_gdom) > 0)
260 fprintf(newfp,"gdom %s\n",stemp->s_gdom);
261 if (strlen(stemp->s_humannode) > 0)
262 fprintf(newfp,"humannode %s\n",stemp->s_humannode);
263 if (stemp->s_lastcontact > 0L)
264 fprintf(newfp,"lastcontact %ld %s",
265 stemp->s_lastcontact,
266 asctime(localtime(&stemp->s_lastcontact)));
271 /* now free the list */
272 while (slist!=NULL) {
280 /* call this function with the node name of a system and it returns a pointer
281 * to its syslist structure.
283 struct syslist *get_sys_ptr(char *sysname)
285 static char sysnambuf[16];
286 static struct syslist *sysptrbuf = NULL;
287 struct syslist *stemp;
289 if ( (!strcmp(sysname,sysnambuf))
290 && (sysptrbuf!=NULL) ) return(sysptrbuf);
292 strcpy(sysnambuf,sysname);
293 for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
294 if (!strcmp(sysname,stemp->s_name)) {
305 * make sure only one copy of netproc runs at a time, using lock files
307 int set_lockfile(void) {
311 if ((lfp = fopen(LOCKFILE,"r")) != NULL) {
312 fscanf(lfp,"%d",&onppid);
314 if (!kill(onppid, 0) || errno == EPERM) return 1;
317 lfp=fopen(LOCKFILE,"w");
318 fprintf(lfp,"%d\n",getpid());
323 void remove_lockfile(void) {
328 * Why both cleanup() and nq_cleanup() ? Notice the alarm() call in
329 * cleanup() . If for some reason netproc hangs waiting for the server
330 * to clean up, the alarm clock goes off and the program exits anyway.
331 * The cleanup() routine makes a check to ensure it's not reentering, in
332 * case the ipc module looped it somehow.
334 void nq_cleanup(int e)
343 static int nested = 0;
346 signal(SIGALRM,nq_cleanup);
347 if (nested++ < 1) serv_puts("QUIT");
352 * This is implemented as a function rather than as a macro because the
353 * client-side IPC modules expect logoff() to be defined. They call logoff()
354 * when a problem connecting or staying connected to the server occurs.
362 * If there is a kill file in place, this function will process it.
364 void load_filterlist(void) {
366 struct filterlist *fbuf;
369 fp=fopen("./network/filterlist","r");
370 if (fp==NULL) return;
371 while (fgets(sbuf,256,fp)!=NULL) {
373 sbuf[strlen(sbuf)-1]=0;
374 fbuf=(struct filterlist *)
375 malloc((long)sizeof(struct filterlist));
378 strcpy(fbuf->f_person,"*");
379 strcpy(fbuf->f_room,"*");
380 strcpy(fbuf->f_system,"*");
382 for (a=strlen(sbuf); a>=0; --a) if (sbuf[a]==',') p=a;
385 strcpy(fbuf->f_person,sbuf);
386 strcpy(sbuf,&sbuf[p+1]);
388 for (a=strlen(sbuf); a>=0; --a) if (sbuf[a]==',') p=a;
391 strcpy(fbuf->f_room,sbuf);
392 strcpy(sbuf,&sbuf[p+1]);
394 strcpy(fbuf->f_system,sbuf);
400 /* returns 1 if user/message/room combination is in the kill file */
401 int is_banned(char *k_person, char *k_room, char *k_system)
403 struct filterlist *fptr;
405 for (fptr=filter; fptr!=NULL; fptr=fptr->next) if (
406 ((!strcasecmp(fptr->f_person,k_person))||(!strcmp(fptr->f_person,"*")))
408 ((!strcasecmp(fptr->f_room,k_room))||(!strcmp(fptr->f_room,"*")))
410 ((!strcasecmp(fptr->f_system,k_system))||(!strcmp(fptr->f_system,"*")))
416 int get_sysinfo_type(char *name) /* determine routing from sysinfo file */
418 struct syslist *stemp;
419 GETSN: for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
420 if (!strcasecmp(stemp->s_name,name)) {
421 if (!strcasecmp(stemp->s_type,"use")) {
422 strcpy(name,stemp->s_nexthop);
425 if (!strcasecmp(stemp->s_type,"bin")) {
428 if (!strcasecmp(stemp->s_type,"uum")) {
433 syslog(LOG_ERR, "cannot find system '%s' in mail.sysinfo", name);
438 void fpgetfield(FILE *fp, char *string)
458 * Load all of the fields of a message, except the actual text, into a
459 * table in memory (so we know how to process the message).
461 void msgfind(char *msgfile, struct minfo *buffer)
469 fp=fopen(msgfile,"rb");
471 syslog(LOG_ERR, "can't open message file: %s",strerror(errno));
476 syslog(LOG_ERR, "incorrect message format");
479 mtype=getc(fp); aflag=getc(fp);
488 BONFGM: b=getc(fp); if (b<0) goto END;
489 if (b=='M') goto END;
491 while ((bbb[0]==' ')&&(strlen(bbb)>1)) strcpy(bbb,&bbb[1]);
493 strcpy(buffer->A,bbb);
494 if (strlen(userid)==0) {
496 for (e=0; e<strlen(userid); ++e)
497 if (userid[e]==' ') userid[e]='_';
500 if (b=='O') strcpy(buffer->O,bbb);
501 if (b=='C') strcpy(buffer->C,bbb);
502 if (b=='N') strcpy(buffer->N,bbb);
503 if (b=='S') strcpy(buffer->S,bbb);
505 /* extract the user id from the path */
506 for (e=0; e<strlen(bbb); ++e)
507 if (bbb[e]=='!') strcpy(userid,&bbb[e+1]);
509 /* now find the next hop */
510 for (e=0; e<strlen(bbb); ++e) if (bbb[e]=='!') bbb[e]=0;
511 strcpy(buffer->nexthop,bbb);
514 for (e=0; e<strlen(bbb); ++e) if (bbb[e]=='_') bbb[e]=' ';
515 strcpy(buffer->R,bbb);
517 if (b=='D') strcpy(buffer->D,bbb);
518 if (b=='T') buffer->T=atol(bbb);
519 if (b=='I') buffer->I=atol(bbb);
520 if (b=='H') strcpy(buffer->H,bbb);
521 if (b=='B') strcpy(buffer->B,bbb);
522 if (b=='G') strcpy(buffer->G,bbb);
523 if (b=='E') strcpy(buffer->E,bbb);
526 END: if (buffer->I==0L) buffer->I=buffer->T;
530 void ship_to(char *filenm, char *sysnm) /* send spool file filenm to system sysnm */
539 syslog(LOG_NOTICE, "shipping %s to %s", filenm, sysnm);
541 sprintf(sysflnm,"./network/systems/%s",sysnm);
542 sysflfd=fopen(sysflnm,"r");
543 if (sysflfd==NULL) syslog(LOG_ERR, "cannot open %s", sysflnm);
544 fgets(commbuf1,99,sysflfd);
545 commbuf1[strlen(commbuf1)-1] = 0;
547 sprintf(commbuf2,commbuf1,filenm);
552 * proc_file_transfer() - handle a simple file transfer packet
555 void proc_file_transfer(char *tname)
556 { /* name of temp file containing the whole message */
558 char dest_room[ROOMNAMELEN];
559 char subdir_name[256];
563 syslog(LOG_NOTICE, "processing network file transfer...");
565 tfp=fopen(tname,"rb");
566 if (tfp==NULL) syslog(LOG_ERR, "cannot open %s", tname);
567 getc(tfp); getc(tfp); getc(tfp);
573 strcpy(dest_room, buf);
576 } while ((a!='M')&&(a>=0));
579 syslog(LOG_ERR, "no message text for file transfer");
583 strcpy(subdir_name, "---xxx---");
584 sprintf(buf, "GOTO %s", dest_room);
588 extract(subdir_name, &buf[4], 2);
589 if (strlen(subdir_name) == 0) strcpy(subdir_name, "--xxx--");
592 /* Change to the room's directory; if that fails, change to the
593 * bitbucket directory. Then run uudecode.
595 sprintf(buf,"(cd %s/files/%s || cd %s/files/%s ) ; exec %s",
596 bbs_home_directory, subdir_name,
597 bbs_home_directory, config.c_bucket_dir,
600 uud=(FILE *)popen(buf,"w");
602 syslog(LOG_ERR, "cannot open uudecode pipe");
608 buf[strlen(buf)-1] = 0;
609 for (a=0; a<strlen(buf); ++a) if (buf[a]=='/') buf[a]='_';
610 fprintf(uud,"%s\n",buf);
611 printf("netproc: %s\n",buf);
612 while(a=getc(tfp), a>0) putc(a,uud);
619 /* send a bounce message */
620 void bounce(struct minfo *bminfo)
628 sprintf(bfilename,"./network/spoolin/bounce.%d.%d",getpid(),bseq++);
629 bounce = fopen(bfilename,"wb");
632 fprintf(bounce,"%c%c%c",0xFF,MES_NORMAL,0);
633 fprintf(bounce,"Ppostmaster%c",0);
634 fprintf(bounce,"T%ld%c",now,0);
635 fprintf(bounce,"APostmaster%c",0);
636 fprintf(bounce,"OMail%c",0);
637 fprintf(bounce,"N%s%c",config.c_nodename,0);
638 fprintf(bounce,"H%s%c",config.c_humannode,0);
640 if (strlen(bminfo->E) > 0) {
641 fprintf(bounce,"R%s%c",bminfo->E,0);
644 fprintf(bounce,"R%s%c",bminfo->A,0);
647 fprintf(bounce,"D%s%c",bminfo->N,0);
648 fprintf(bounce,"M%s could not deliver your mail to:\n",
650 fprintf(bounce," \n %s\n \n",bminfo->R);
651 fprintf(bounce," because there is no such user on this system.\n");
652 fprintf(bounce," (Unsent message does *not* follow. ");
653 fprintf(bounce,"Help to conserve bandwidth.)\n%c",0);
660 * process incoming files in ./network/spoolin
662 void inprocess(void) {
663 FILE *fp,*message,*testfp,*ls;
664 static struct minfo minfo;
665 struct recentmsg recentmsg;
666 char tname[128],aaa[1024],iname[256],sfilename[256],pfilename[256];
669 struct syslist *stemp;
676 sprintf(tname,"/tmp/net.t%d",getpid()); /* temp file name */
677 sprintf(iname,"/tmp/net.i%d",getpid()); /* temp file name */
681 chdir(bbs_home_directory);
683 /* Let the shell do the dirty work. Get all data from spoolin */
685 sprintf(aaa,"cd %s/network/spoolin; ls",bbs_home_directory);
688 syslog(LOG_ERR, "could not open dir cmd: %s", strerror(errno));
692 ptr=fgets(sfilename,256,ls);
693 if (ptr!=NULL) sfilename[strlen(sfilename)-1] = 0;
694 } while( (ptr!=NULL)&&((!strcmp(sfilename,"."))
695 ||(!strcmp(sfilename,".."))));
696 if (ptr!=NULL) syslog(LOG_NOTICE, "processing %s", sfilename);
701 sprintf(pfilename,"%s/network/spoolin/%s",bbs_home_directory,sfilename);
702 syslog(LOG_NOTICE, "processing <%s>", pfilename);
704 fp = fopen(pfilename, "rb");
706 syslog(LOG_ERR, "cannot open %s: %s", pfilename, strerror(errno));
707 fp = fopen("/dev/null" ,"rb");
710 NXMSG: /* Seek to the beginning of the next message */
713 } while((a!=255)&&(a>=0));
714 if (a<0) goto ENDSTR;
716 message = fopen(tname,"wb"); /* This crates the temporary file. */
717 if (message == NULL) {
718 syslog(LOG_ERR, "error creating %s: %s", tname,strerror(errno));
721 putc(255,message); /* 0xFF (start-of-message) */
722 a = getc(fp); putc(a, message); /* type */
723 a = getc(fp); putc(a, message); /* mode */
725 FieldID = getc(fp); /* Header field ID */
726 putc(FieldID, message);
731 } while ((FieldID != 'M') && (a >= 0)); /* M is always last */
733 msglen = ftell(message);
736 /* process the individual mesage */
742 msgfind(tname,&minfo);
743 strncpy(recentmsg.RMnodename,minfo.N,9);
744 recentmsg.RMnodename[9]=0;
745 recentmsg.RMnum=minfo.I;
746 syslog(LOG_NOTICE, "#%ld fm <%s> in <%s> @ <%s>",
747 minfo.I,minfo.A,minfo.O,minfo.N);
748 if (strlen(minfo.R)>0) {
749 syslog(LOG_NOTICE, " to <%s>",minfo.R);
750 if (strlen(minfo.D)>0) {
751 syslog(LOG_NOTICE, " @ <%s>",minfo.D);
754 if (!strcasecmp(minfo.D,FQDN)) strcpy(minfo.D,NODENAME);
756 /* this routine updates our info on the system that sent the message */
757 stemp = get_sys_ptr(minfo.N);
758 if ((stemp == NULL) && (get_sys_ptr(minfo.nexthop) != NULL)) {
759 /* add non-neighbor system to map */
760 syslog(LOG_NOTICE, "Adding non-neighbor system <%s> to map",
762 stemp = (struct syslist *)malloc((long)sizeof(struct syslist));
765 strcpy(slist->s_name,minfo.N);
766 strcpy(slist->s_type,"use");
767 strcpy(slist->s_nexthop,minfo.nexthop);
768 time(&slist->s_lastcontact);
770 else if ((stemp == NULL) && (!strcasecmp(minfo.N,minfo.nexthop))) {
771 /* add neighbor system to map */
772 syslog(LOG_NOTICE, "Adding neighbor system <%s> to map",
774 sprintf(aaa,"%s/network/systems/%s",bbs_home_directory,minfo.N);
775 testfp=fopen(aaa,"r");
778 stemp = (struct syslist *)
779 malloc((long)sizeof(struct syslist));
782 strcpy(slist->s_name,minfo.N);
783 strcpy(slist->s_type,"bin");
784 strcpy(slist->s_nexthop,"Mail");
785 time(&slist->s_lastcontact);
788 /* now update last contact and long node name if we can */
790 time(&stemp->s_lastcontact);
791 if (strlen(minfo.H) > 0) strcpy(stemp->s_humannode,minfo.H);
792 if (strlen(minfo.B) > 0) strcpy(stemp->s_phonenum,minfo.B);
793 if (strlen(minfo.G) > 0) strcpy(stemp->s_gdom,minfo.G);
796 /* route the message if necessary */
797 if ((strcasecmp(minfo.D,NODENAME))&&(minfo.D[0]!=0)) {
798 a = get_sysinfo_type(minfo.D);
799 syslog(LOG_NOTICE, "routing message to system <%s>", minfo.D);
803 syslog(LOG_NOTICE, "netmailer %s", tname);
805 execlp("./netmailer","netmailer",
807 syslog(LOG_ERR, "error running netmailer: %s",
811 else while (wait(&b)!=(-1));
813 else if (a==M_BINARY) {
814 ship_to(tname,minfo.D);
817 /* message falls into the bit bucket? */
821 /* check to see if it's a file transfer */
822 else if (!strncasecmp(minfo.S,"FILE",4)) {
823 proc_file_transfer(tname);
826 /* otherwise process it as a normal message */
829 if (!strcasecmp(minfo.R, "postmaster")) {
831 strcpy(minfo.C, "Aide");
834 if (strlen(minfo.R) > 0) {
835 sprintf(buf,"GOTO _MAIL_");
837 if (is_banned(minfo.A,minfo.C,minfo.N)) {
838 sprintf(buf,"GOTO %s", FILTERROOM);
841 if (strlen(minfo.C) > 0) {
842 sprintf(buf,"GOTO %s", minfo.C);
845 sprintf(buf,"GOTO %s", minfo.O);
851 syslog(LOG_ERR, "%s", buf);
852 sprintf(buf,"GOTO _BITBUCKET_");
857 /* Open the temporary file containing the message */
858 message = fopen(tname, "rb");
859 if (message == NULL) {
860 syslog(LOG_ERR, "cannot open %s: %s",
861 tname, strerror(errno));
866 /* Transmit the message to the server */
867 sprintf(buf, "ENT3 1|%s|%ld", minfo.R, msglen);
870 if (!strncmp(buf, "570", 3)) {
871 /* no such user, do a bounce */
875 /* Always use the server's idea of the message length,
876 * even though they should both be identical */
877 msglen = atol(&buf[4]);
878 while (msglen > 0L) {
879 bloklen = ((msglen >= 255L) ? 255 : ((int)msglen));
880 if (fread(buf, bloklen, 1, message) < 1) {
882 "error trying to read %d bytes: %s",
883 bloklen, strerror(errno));
885 serv_write(buf, bloklen);
886 msglen = msglen - (long)bloklen;
892 syslog(LOG_ERR, "%s", buf);
909 int checkpath(char *path, char *sys) /* Checks to see whether its ok to send */
910 /* Returns 1 for ok, send message */
911 { /* Returns 0 if message already there */
918 syslog(LOG_NOTICE, "checkpath <%s> <%s> ... ", path, sys);
920 for (a=0; a<strlen(path); ++a) {
921 if (!strncmp(&path[a],sys2,strlen(sys2))) return(0);
927 * implement split horizon algorithm
929 int ismsgok(long int mpos, FILE *mmfp, char *sysname)
932 int ok = 0; /* fail safe - no path, don't send it */
936 if (getc(mmfp)!=255) return(0);
937 getc(mmfp); getc(mmfp);
939 while (a=getc(mmfp),((a!='M')&&(a!=0))) {
940 fpgetfield(mmfp,fbuf);
942 ok = checkpath(fbuf,sysname);
946 syslog(LOG_NOTICE, "%s", ((ok)?"SEND":"(no)") );
951 int spool_out(struct msglist *cmlist, FILE *destfp, char *sysname) /* spool list of messages to a file */
952 /* returns # of msgs spooled */
956 struct msglist *cmptr;
961 int msgs_spooled = 0;
969 sprintf(mmtemp, "/tmp/net.m%d", getpid());
971 /* for each message in the list... */
972 for (cmptr=cmlist; cmptr!=NULL; cmptr=cmptr->next) {
974 /* make sure we're in the correct room... */
975 if (strcasecmp(curr_rm, cmptr->m_rmname)) {
976 sprintf(buf, "GOTO %s", cmptr->m_rmname);
980 strcpy(curr_rm, cmptr->m_rmname);
983 syslog(LOG_ERR, "%s", buf);
987 /* download the message from the server... */
988 mmfp = fopen(mmtemp, "wb");
989 sprintf(buf, "MSG3 %ld", cmptr->m_num);
992 if (buf[0]=='6') { /* read the msg */
993 msg_len = atol(&buf[4]);
994 while (msg_len > 0L) {
995 blok_len = ((msg_len >= 256L) ? 256 : (int)msg_len);
996 serv_read(buf, blok_len);
997 fwrite(buf, blok_len, 1, mmfp);
998 msg_len = msg_len - (long)blok_len;
1001 else { /* or print the err */
1002 syslog(LOG_ERR, "%s", buf);
1006 mmfp = fopen(mmtemp,"rb");
1008 if (ismsgok(0L,mmfp,sysname)) {
1012 fread(fbuf,3,1,mmfp);
1013 fwrite(fbuf,3,1,destfp);
1014 while (a=getc(mmfp),((a!=0)&&(a!='M'))) {
1015 if (a!='C') putc(a,destfp);
1016 fpgetfield(mmfp,fbuf);
1017 if (a=='P') fprintf(destfp,"%s!",NODENAME);
1019 fwrite(fbuf,strlen(fbuf)+1,1,destfp);
1022 fprintf(destfp, "C%s%c",
1023 cmptr->m_rmname, 0);
1035 return(msgs_spooled);
1038 void outprocess(char *sysname) /* send new room messages to sysname */
1042 char shiptocmd[128];
1046 struct msglist *cmlist = NULL;
1047 struct rmlist *crmlist = NULL;
1048 struct rmlist *rmptr,*rmptr2;
1049 struct msglist *cmptr,*cmptr2;
1050 FILE *sysflfp,*tempflfp;
1054 sprintf(tempflnm,"/tmp/%s.%d",NODENAME,getpid());
1055 tempflfp=fopen(tempflnm,"w");
1056 if (tempflfp==NULL) return;
1060 * Read system file for node in question and put together room list
1062 sprintf(sysflnm,"%s/network/systems/%s",bbs_home_directory,sysname);
1063 sysflfp=fopen(sysflnm,"r");
1064 if (sysflfp==NULL) return;
1065 fgets(shiptocmd,128,sysflfp); shiptocmd[strlen(shiptocmd)-1]=0;
1066 while(!feof(sysflfp)) {
1067 if (fgets(srmname,32,sysflfp)==NULL) break;
1068 srmname[strlen(srmname)-1]=0;
1069 fgets(lbuf,32,sysflfp);
1070 rmptr=(struct rmlist *)malloc(sizeof(struct rmlist));
1072 strcpy(rmptr->rm_name,srmname);
1073 strip_trailing_whitespace(rmptr->rm_name);
1074 rmptr->rm_lastsent = atol(lbuf);
1075 if (crmlist==NULL) crmlist=rmptr;
1076 else if (!strcasecmp(rmptr->rm_name,"control")) {
1077 /* control has to be first in room list */
1078 rmptr->next = crmlist;
1083 while (rmptr2->next != NULL) rmptr2=rmptr2->next;
1090 * Assemble list of messages to be spooled
1092 for (rmptr=crmlist; rmptr!=NULL; rmptr=rmptr->next) {
1094 sprintf(buf,"GOTO %s",rmptr->rm_name);
1098 syslog(LOG_ERR, "%s", buf);
1101 sprintf(buf, "MSGS GT|%ld", rmptr->rm_lastsent);
1104 if (buf[0]=='1') while (serv_gets(buf), strcmp(buf,"000")) {
1105 thismsg = atol(buf);
1106 if ( thismsg > (rmptr->rm_lastsent) ) {
1107 rmptr->rm_lastsent = thismsg;
1109 cmptr=(struct msglist *)
1110 malloc(sizeof(struct msglist));
1112 cmptr->m_num = thismsg;
1113 strcpy(cmptr->m_rmname, rmptr->rm_name);
1115 if (cmlist == NULL) cmlist = cmptr;
1118 while (cmptr2->next != NULL)
1119 cmptr2 = cmptr2->next;
1120 cmptr2->next = cmptr;
1124 else { /* print error from "msgs all" */
1125 syslog(LOG_ERR, "%s", buf);
1130 outgoing_msgs=0; cmptr2=cmlist; /* this loop counts the messages */
1131 while (cmptr2!=NULL) {
1133 cmptr2 = cmptr2->next;
1135 syslog(LOG_NOTICE, "%d messages to be spooled to %s",
1136 outgoing_msgs,sysname);
1139 * Spool out the messages, but only if there are any.
1141 if (outgoing_msgs!=0) outgoing_msgs=spool_out(cmlist,tempflfp,sysname);
1142 syslog(LOG_NOTICE, "%d messages actually spooled",
1146 * Deallocate list of spooled messages.
1148 while(cmlist!=NULL) {
1155 * Rewrite system file and deallocate room list.
1157 syslog(LOG_NOTICE, "Spooling...");
1158 sysflfp=fopen(sysflnm,"w");
1159 fprintf(sysflfp,"%s\n",shiptocmd);
1160 for (rmptr=crmlist; rmptr!=NULL; rmptr=rmptr->next)
1161 fprintf(sysflfp,"%s\n%ld\n",rmptr->rm_name,rmptr->rm_lastsent);
1163 while(crmlist!=NULL) {
1164 rmptr=crmlist->next;
1170 * Close temporary file, ship it out, and return
1173 if (outgoing_msgs!=0) ship_to(tempflnm,sysname);
1179 * Connect netproc to the Citadel server running on this computer.
1181 void np_attach_to_server(void) {
1184 char *args[] = { "netproc", "localhost", NULL, NULL } ;
1186 syslog(LOG_NOTICE, "Attaching to server...");
1187 sprintf(portname, "%d", config.c_port_number);
1189 attach_to_server(3, args);
1191 syslog(LOG_NOTICE, "%s", &buf[4]);
1192 sprintf(buf,"IPGM %d", config.c_ipgm_secret);
1195 syslog(LOG_NOTICE, "%s", &buf[4]);
1206 int main(int argc, char **argv)
1211 int import_only = 0; /* if set to 1, don't export anything */
1213 openlog("netproc", LOG_PID, LOG_USER);
1214 strcpy(bbs_home_directory, BBSDIR);
1217 * Change directories if specified
1219 for (a=1; a<argc; ++a) {
1220 if (!strncmp(argv[a], "-h", 2)) {
1221 strcpy(bbs_home_directory, argv[a]);
1222 strcpy(bbs_home_directory, &bbs_home_directory[2]);
1225 if (!strcmp(argv[a], "-i")) {
1229 fprintf(stderr, "netproc: usage: ");
1230 fprintf(stderr, "netproc [-hHomeDir] [-i]\n");
1237 if (set_lockfile()!=0) {
1238 syslog(LOG_NOTICE, "lock file exists: already running");
1242 signal(SIGINT,cleanup);
1243 signal(SIGQUIT,cleanup);
1244 signal(SIGHUP,cleanup);
1245 signal(SIGTERM,cleanup);
1247 syslog(LOG_NOTICE, "started. pid=%d", getpid());
1249 np_attach_to_server();
1252 if (load_syslist()!=0) syslog(LOG_ERR, "cannot load sysinfo");
1253 setup_special_nodes();
1255 inprocess(); /* first collect incoming stuff */
1257 if (import_only != 1) {
1258 allfp=(FILE *)popen("cd ./network/systems; ls","r");
1260 while (fgets(allst,32,allfp)!=NULL) {
1261 allst[strlen(allst)-1] = 0;
1266 /* import again in case anything new was generated */
1271 syslog(LOG_NOTICE, "processing ended.");