citadel/netproc.c

   1 /*
   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
   5  */
   6
   7 /*
   8  * Specify where netproc should log to, and the mode for opening the file.
   9  * If you are logging to a file, NPLOGMODE should be a; if you are logging to
  10  * a device or fifo it should be w.
  11  */
  12 #define NPLOGFILE       "./netproc.log"
  13 #define NPLOGMODE       "a"
  14
  15 /* How long it takes for an old node to drop off the network map */
  16 #define EXPIRY_TIME     (2592000L)
  17
  18 /* Where do we keep our lock file? */
  19 #define LOCKFILE        "/var/lock/LCK.netproc"
  20
  21 /* Path to the 'uudecode' utility (needed for network file transfers) */
  22 #define UUDECODE        "/usr/bin/uudecode"
  23
  24 /* Uncomment the DEBUG def to see noisy traces */
  25 /* #define DEBUG 1 */
  26
  27
  28 #include "sysdep.h"
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31 #include <sys/types.h>
  32 #include <sys/wait.h>
  33 #include <string.h>
  34 #include <fcntl.h>
  35 #include <stdio.h>
  36 #include <ctype.h>
  37 #include <time.h>
  38 #include <signal.h>
  39 #include <errno.h>
  40 #include "citadel.h"
  41
  42 /* A list of users you wish to filter out of incoming traffic can be kept
  43  * in ./network/filterlist -- messages from these users will be automatically
  44  * moved to FILTERROOM.  Normally this will be the same as TWITROOM (the
  45  * room problem user messages are moved to) but you can override this by
  46  * specifying a different room name here.
  47  */
  48 #ifndef FILTERROOM
  49 #define FILTERROOM TWITROOM
  50 #endif
  51
  52 struct msglist {
  53         struct msglist *next;
  54         long m_num;
  55         char m_rmname[20];
  56         };
  57
  58 struct rmlist {
  59         struct rmlist *next;
  60         char rm_name[20];
  61         long rm_lastsent;
  62         };
  63
  64 struct filterlist {
  65         struct filterlist *next;
  66         char f_person[64];
  67         char f_room[64];
  68         char f_system[64];
  69         };
  70
  71 struct syslist {
  72         struct syslist *next;
  73         char s_name[16];
  74         char s_type[4];
  75         char s_nexthop[128];
  76         long s_lastcontact;
  77         char s_humannode[64];
  78         char s_phonenum[32];
  79         char s_gdom[64];
  80         };
  81
  82 struct minfo {
  83         char A[512];
  84         char E[512];
  85         long I;
  86         char N[512];
  87         char O[512];
  88         char R[512];
  89         long T;
  90         char D[512];
  91         char C[512];
  92         char nexthop[32];
  93         char H[512];
  94         char S[512];
  95         char B[512];
  96         char G[512];
  97         };
  98
  99
 100 void attach_to_server(int argc, char **argv);
 101 void serv_read(char *buf, int bytes);
 102 void serv_write(char *buf, int nbytes);
 103 void get_config(void);
 104
 105 struct filterlist *filter = NULL;
 106 char roomnames[MAXROOMS][20];
 107 char roomdirs[MAXROOMS][15];
 108 struct syslist *slist = NULL;
 109
 110 struct config config;
 111 extern char bbs_home_directory[];
 112 extern int home_specified;
 113
 114
 115 #ifdef NO_STRERROR
 116 /*
 117  * replacement strerror() for systems that don't have it
 118  */
 119 char *strerror(int e)
 120 {
 121         static char buf[32];
 122
 123         sprintf(buf,"errno = %d",e);
 124         return(buf);
 125         }
 126 #endif
 127
 128
 129 void strip_trailing_whitespace(char *buf)
 130 {
 131         while(isspace(buf[strlen(buf)-1]))
 132                 buf[strlen(buf)-1]=0;
 133         }
 134
 135
 136 /*
 137  * for performance optimization, netproc loads the list of room names (and
 138  * their corresponding directory names, if applicable) into a table in memory.
 139  */
 140 int load_roomnames(void) {
 141         FILE *fp;
 142         struct quickroom qbuf;
 143         int i;
 144
 145         fp=fopen("./quickroom","rb");
 146         if (fp==NULL) return(1);
 147         for (i=0; i<MAXROOMS; ++i) {
 148                 if (fread((char *)&qbuf,sizeof(struct quickroom),1,fp)!=1)
 149                         return(1);
 150                 strcpy(roomnames[i],qbuf.QRname);
 151                 if (qbuf.QRflags & QR_DIRECTORY)
 152                         strcpy(roomdirs[i],qbuf.QRdirname);
 153                 else
 154                         strcpy(roomdirs[i],config.c_bucket_dir);
 155                 }
 156         fclose(fp);
 157         return(0);
 158         }
 159
 160 /*
 161  * we also load the network/mail.sysinfo table into memory, make changes
 162  * as we learn more about the network from incoming messages, and write
 163  * the table back to disk when we're done.
 164  */
 165 int load_syslist(void) {
 166         FILE *fp;
 167         struct syslist *stemp;
 168         char insys = 0;
 169         char buf[128];
 170
 171         fp=fopen("network/mail.sysinfo","rb");
 172         if (fp==NULL) return(1);
 173
 174         while(1) {
 175                 if (fgets(buf,128,fp)==NULL) {
 176                         fclose(fp);
 177                         return(0);
 178                         }
 179                 buf[strlen(buf)-1] = 0;
 180                 while (isspace(buf[0])) strcpy(buf,&buf[1]);
 181                 if (buf[0]=='#') buf[0]=0;
 182                 if ( (insys==0) && (strlen(buf)!=0) ) {
 183                         insys = 1;
 184                         stemp =(struct syslist *)malloc(sizeof(struct syslist));
 185                         stemp->next = slist;
 186                         slist = stemp;
 187                         strcpy(slist->s_name,buf);
 188                         strcpy(slist->s_type,"bin");
 189                         strcpy(slist->s_nexthop,"Mail");
 190                         slist->s_lastcontact = 0L;
 191                         strcpy(slist->s_humannode,"");
 192                         strcpy(slist->s_phonenum,"");
 193                         strcpy(slist->s_gdom,"");
 194                         }
 195                 else if ( (insys==1) && (strlen(buf)==0) ) {
 196                         insys = 0;
 197                         }
 198                 else if ( (insys==1) && (!strncmp(buf,"bin",3)) ) {
 199                         strcpy(slist->s_type,"bin");
 200                         strcpy(slist->s_nexthop,&buf[4]);
 201                         }
 202                 else if ( (insys==1) && (!strncmp(buf,"use",3)) ) {
 203                         strcpy(slist->s_type,"use");
 204                         strcpy(slist->s_nexthop,&buf[4]);
 205                         }
 206                 else if ( (insys==1) && (!strncmp(buf,"uum",3)) ) {
 207                         strcpy(slist->s_type,"uum");
 208                         strcpy(slist->s_nexthop,&buf[4]);
 209                         }
 210                 else if ( (insys==1) && (!strncmp(buf,"lastcontact",11)) ) {
 211                         sscanf(&buf[12],"%ld",&slist->s_lastcontact);
 212                         }
 213                 else if ( (insys==1) && (!strncmp(buf,"humannode",9)) ) {
 214                         strcpy(slist->s_humannode,&buf[10]);
 215                         }
 216                 else if ( (insys==1) && (!strncmp(buf,"phonenum",8)) ) {
 217                         strcpy(slist->s_phonenum,&buf[9]);
 218                         }
 219                 else if ( (insys==1) && (!strncmp(buf,"gdom",4)) ) {
 220                         strcpy(slist->s_gdom,&buf[5]);
 221                         }
 222                 }
 223         }
 224
 225 /* now we have to set up two "special" nodes on the list: one
 226  * for the local node, and one for an Internet gateway
 227  */
 228 void setup_special_nodes(void) {
 229         struct syslist *stemp,*slocal;
 230
 231         slocal = NULL;
 232         for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
 233                 if (!strcasecmp(stemp->s_name,config.c_nodename)) slocal=stemp;
 234                 }
 235         if (slocal==NULL) {
 236                 slocal =(struct syslist *)malloc(sizeof(struct syslist));
 237                 slocal->next = slist;
 238                 slist = slocal;
 239                 }
 240         strcpy(slocal->s_name,config.c_nodename);
 241         strcpy(slocal->s_type,"bin");
 242         strcpy(slocal->s_nexthop,"Mail");
 243         time(&slocal->s_lastcontact);
 244         strcpy(slocal->s_humannode,config.c_humannode);
 245         strcpy(slocal->s_phonenum,config.c_phonenum);
 246
 247         slocal = NULL;
 248         for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
 249                 if (!strcasecmp(stemp->s_name,"internet")) slocal=stemp;
 250                 }
 251         if (slocal==NULL) {
 252                 slocal =(struct syslist *)malloc(sizeof(struct syslist));
 253                 slocal->next = slist;
 254                 slist = slocal;
 255                 }
 256         strcpy(slocal->s_name,"internet");
 257         strcpy(slocal->s_type,"uum");
 258         strcpy(slocal->s_nexthop,"%s");
 259         time(&slocal->s_lastcontact);
 260         strcpy(slocal->s_humannode,"Internet Gateway");
 261         strcpy(slocal->s_phonenum,"");
 262         strcpy(slocal->s_gdom,"");
 263
 264         }
 265
 266 /*
 267  * here's the routine to write the table back to disk.
 268  */
 269 void rewrite_syslist(void) {
 270         struct syslist *stemp;
 271         FILE *newfp;
 272         long now;
 273
 274         time(&now);
 275         newfp=fopen("network/mail.sysinfo","w");
 276         for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
 277                 if (!strcasecmp(stemp->s_name,config.c_nodename)) {
 278                         time(&stemp->s_lastcontact);
 279                         strcpy(stemp->s_type,"bin");
 280                         strcpy(stemp->s_humannode,config.c_humannode);
 281                         strcpy(stemp->s_phonenum,config.c_phonenum);
 282                         }
 283             /* remove systems we haven't heard from in a while */
 284             if ( (stemp->s_lastcontact == 0L)
 285                  || (now - stemp->s_lastcontact < EXPIRY_TIME) ) {
 286                 fprintf(newfp,"%s\n%s %s\n",
 287                         stemp->s_name,stemp->s_type,stemp->s_nexthop);
 288                 if (strlen(stemp->s_phonenum) > 0)
 289                         fprintf(newfp,"phonenum %s\n",stemp->s_phonenum);
 290                 if (strlen(stemp->s_gdom) > 0)
 291                         fprintf(newfp,"gdom %s\n",stemp->s_gdom);
 292                 if (strlen(stemp->s_humannode) > 0)
 293                         fprintf(newfp,"humannode %s\n",stemp->s_humannode);
 294                 if (stemp->s_lastcontact > 0L)
 295                         fprintf(newfp,"lastcontact %ld %s",
 296                                 stemp->s_lastcontact,
 297                                 asctime(localtime(&stemp->s_lastcontact)));
 298                 fprintf(newfp,"\n");
 299                 }
 300             }
 301         fclose(newfp);
 302         /* now free the list */
 303         while (slist!=NULL) {
 304                 stemp = slist;
 305                 slist = slist->next;
 306                 free(stemp);
 307                 }
 308         }
 309
 310
 311 /* call this function with the node name of a system and it returns a pointer
 312  * to its syslist structure.
 313  */
 314 struct syslist *get_sys_ptr(char *sysname)
 315 {
 316         static char sysnambuf[16];
 317         static struct syslist *sysptrbuf = NULL;
 318         struct syslist *stemp;
 319
 320         if ( (!strcmp(sysname,sysnambuf))
 321                 && (sysptrbuf!=NULL) )  return(sysptrbuf);
 322
 323         strcpy(sysnambuf,sysname);
 324         for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
 325                 if (!strcmp(sysname,stemp->s_name)) {
 326                         sysptrbuf = stemp;
 327                         return(stemp);
 328                         }
 329                 }
 330         sysptrbuf = NULL;
 331         return(NULL);
 332         }
 333
 334
 335 /*
 336  * make sure only one copy of netproc runs at a time, using lock files
 337  */
 338 int set_lockfile(void) {
 339         FILE *lfp;
 340         int ok = 1;
 341         int onppid;
 342         char buf[64];
 343
 344         if (access(LOCKFILE,0)==0) {
 345
 346         /*
 347          * if the /proc filesystem is available, we can further check to
 348          * make sure that the process that wrote the lock file is actually
 349          * running, and didn't simply terminate and not clean up after itself
 350          */
 351 #ifdef HAVE_PROC_FS
 352                 lfp = fopen(LOCKFILE,"r");
 353                 fscanf(lfp,"%d",&onppid);
 354                 fclose(lfp);
 355                 sprintf(buf,"/proc/%d/cmdline",onppid);
 356                 if (access(buf,0)==0) ok = 0;
 357 #else
 358                 ok = 0;
 359 #endif
 360                 }
 361
 362         if (ok == 0) return(1);
 363         lfp=fopen(LOCKFILE,"w");
 364         fprintf(lfp,"%d\n",getpid());
 365         fclose(lfp);
 366         return(0);
 367         }
 368
 369 void remove_lockfile(void) {
 370         unlink(LOCKFILE);
 371         }
 372
 373 /*
 374  * Why both cleanup() and nq_cleanup() ?  Notice the alarm() call in
 375  * cleanup() .  If for some reason netproc hangs waiting for the server
 376  * to clean up, the alarm clock goes off and the program exits anyway.
 377  * The cleanup() routine makes a check to ensure it's not reentering, in
 378  * case the ipc module looped it somehow.
 379  */
 380 void nq_cleanup(int e)
 381 {
 382         remove_lockfile();
 383         exit(e);
 384         }
 385
 386 void cleanup(int e)
 387 {
 388         static int nested = 0;
 389
 390         alarm(30);
 391         signal(SIGALRM,nq_cleanup);
 392         if (nested++ < 1) serv_puts("QUIT");
 393         nq_cleanup(e);
 394         }
 395
 396 /*
 397  * This is implemented as a function rather than as a macro because the
 398  * client-side IPC modules expect logoff() to be defined.  They call logoff()
 399  * when a problem connecting or staying connected to the server occurs.
 400  */
 401 void logoff(int e)
 402 {
 403         cleanup(e);
 404         }
 405
 406 /*
 407  * If there is a kill file in place, this function will process it.
 408  */
 409 void load_filterlist(void) {
 410         FILE *fp;
 411         struct filterlist *fbuf;
 412         char sbuf[256];
 413         int a,p;
 414         fp=fopen("./network/filterlist","r");
 415         if (fp==NULL) return;
 416         while (fgets(sbuf,256,fp)!=NULL) {
 417                 if (sbuf[0]!='#') {
 418                         sbuf[strlen(sbuf)-1]=0;
 419                         fbuf=(struct filterlist *)
 420                                 malloc((long)sizeof(struct filterlist));
 421                         fbuf->next = filter;
 422                         filter = fbuf;
 423                         strcpy(fbuf->f_person,"*");
 424                         strcpy(fbuf->f_room,"*");
 425                         strcpy(fbuf->f_system,"*");
 426                         p = (-1);
 427                         for (a=strlen(sbuf); a>=0; --a) if (sbuf[a]==',') p=a;
 428                         if (p>=0) {
 429                                 sbuf[p] = 0;
 430                                 strcpy(fbuf->f_person,sbuf);
 431                                 strcpy(sbuf,&sbuf[p+1]);
 432                                 }
 433                         for (a=strlen(sbuf); a>=0; --a) if (sbuf[a]==',') p=a;
 434                         if (p>=0) {
 435                                 sbuf[p] = 0;
 436                                 strcpy(fbuf->f_room,sbuf);
 437                                 strcpy(sbuf,&sbuf[p+1]);
 438                                 }
 439                         strcpy(fbuf->f_system,sbuf);
 440                         }
 441                 }
 442         fclose(fp);
 443         }
 444
 445 /* returns 1 if user/message/room combination is in the kill file */
 446 int is_banned(char *k_person, char *k_room, char *k_system)
 447 {
 448         struct filterlist *fptr;
 449
 450         for (fptr=filter; fptr!=NULL; fptr=fptr->next) if (
 451          ((!strcasecmp(fptr->f_person,k_person))||(!strcmp(fptr->f_person,"*")))
 452         &&
 453          ((!strcasecmp(fptr->f_room,k_room))||(!strcmp(fptr->f_room,"*")))
 454         &&
 455          ((!strcasecmp(fptr->f_system,k_system))||(!strcmp(fptr->f_system,"*")))
 456         ) return(1);
 457
 458         return(0);
 459         }
 460
 461 int get_sysinfo_type(char *name)        /* determine routing from sysinfo file */
 462              {
 463         struct syslist *stemp;
 464 GETSN:  for (stemp=slist; stemp!=NULL; stemp=stemp->next) {
 465             if (!strcasecmp(stemp->s_name,name)) {
 466                 if (!strcasecmp(stemp->s_type,"use")) {
 467                         strcpy(name,stemp->s_nexthop);
 468                         goto GETSN;
 469                         }
 470                 if (!strcasecmp(stemp->s_type,"bin")) {
 471                         return(M_BINARY);
 472                         }
 473                 if (!strcasecmp(stemp->s_type,"uum")) {
 474                         return(M_INTERNET);
 475                         }
 476                 }
 477             }
 478         printf("netproc: cannot find system '%s' in mail.sysinfo\n",name);
 479         return(-1);
 480         }
 481
 482
 483 void fpgetfield(FILE *fp, char *string)
 484 {
 485         int a,b;
 486
 487         strcpy(string,"");
 488         a=0;
 489         do {
 490                 b=getc(fp);
 491                 if (b<1) {
 492                         string[a]=0;
 493                         return;
 494                         }
 495                 string[a]=b;
 496                 ++a;
 497                 } while (b!=0);
 498         }
 499
 500
 501
 502 /*
 503  * Load all of the fields of a message, except the actual text, into a
 504  * table in memory (so we know how to process the message).
 505  */
 506 void msgfind(char *msgfile, struct minfo *buffer)
 507 {
 508         int b,e,mtype,aflag;
 509         char bbb[1024];
 510         char userid[1024];
 511         FILE *fp;
 512
 513         strcpy(userid,"");
 514         fp=fopen(msgfile,"rb");
 515         if (fp==NULL) {
 516                 fprintf(stderr,"Can't open message file: %s\n",strerror(errno));
 517                 return;
 518                 }
 519         e=getc(fp);
 520         if (e!=255) {
 521                 fprintf(stdout,"Incorrect message format\n");
 522                 goto END;
 523                 }
 524         mtype=getc(fp); aflag=getc(fp);
 525         buffer->I=0L;
 526         buffer->R[0]=0;
 527         buffer->E[0]=0;
 528         buffer->H[0]=0;
 529         buffer->S[0]=0;
 530         buffer->B[0]=0;
 531         buffer->G[0]=0;
 532
 533 BONFGM: b=getc(fp); if (b<0) goto END;
 534         if (b=='M') goto END;
 535         fpgetfield(fp,bbb);
 536         while ((bbb[0]==' ')&&(strlen(bbb)>1)) strcpy(bbb,&bbb[1]);
 537         if (b=='A') {
 538                 strcpy(buffer->A,bbb);
 539                 if (strlen(userid)==0) {
 540                         strcpy(userid,bbb);
 541                         for (e=0; e<strlen(userid); ++e)
 542                                 if (userid[e]==' ') userid[e]='_';
 543                         }
 544                 }
 545         if (b=='O') strcpy(buffer->O,bbb);
 546         if (b=='C') strcpy(buffer->C,bbb);
 547         if (b=='N') strcpy(buffer->N,bbb);
 548         if (b=='S') strcpy(buffer->S,bbb);
 549         if (b=='P') {
 550                 /* extract the user id from the path */
 551                 for (e=0; e<strlen(bbb); ++e)
 552                         if (bbb[e]=='!') strcpy(userid,&bbb[e+1]);
 553
 554                 /* now find the next hop */
 555                 for (e=0; e<strlen(bbb); ++e) if (bbb[e]=='!') bbb[e]=0;
 556                 strcpy(buffer->nexthop,bbb);
 557                 }
 558         if (b=='R') {
 559                 for (e=0; e<strlen(bbb); ++e) if (bbb[e]=='_') bbb[e]=' ';
 560                 strcpy(buffer->R,bbb);
 561                 }
 562         if (b=='D') strcpy(buffer->D,bbb);
 563         if (b=='T') buffer->T=atol(bbb);
 564         if (b=='I') buffer->I=atol(bbb);
 565         if (b=='H') strcpy(buffer->H,bbb);
 566         if (b=='B') strcpy(buffer->B,bbb);
 567         if (b=='G') strcpy(buffer->G,bbb);
 568         if (b=='E') strcpy(buffer->E,bbb);
 569         goto BONFGM;
 570
 571 END:    if (buffer->I==0L) buffer->I=buffer->T;
 572         fclose(fp);
 573         }
 574
 575 void ship_to(char *filenm, char *sysnm) /* send spool file filenm to system sysnm */
 576
 577              {
 578         char sysflnm[100];
 579         char commbuf1[100];
 580         char commbuf2[100];
 581         FILE *sysflfd;
 582
 583 #ifdef DEBUG
 584         fprintf(stdout,"netproc: shipping %s to %s\n",filenm,sysnm);
 585 #endif
 586         sprintf(sysflnm,"./network/systems/%s",sysnm);
 587         sysflfd=fopen(sysflnm,"r");
 588         if (sysflfd==NULL) fprintf(stdout,"netproc: cannot open %s\n",sysflnm);
 589         fgets(commbuf1,99,sysflfd);
 590         commbuf1[strlen(commbuf1)-1] = 0;
 591         fclose(sysflfd);
 592         sprintf(commbuf2,commbuf1,filenm);
 593         system(commbuf2);
 594         }
 595
 596 /*
 597  * proc_file_transfer()  -  handle a simple file transfer packet
 598  */
 599 void proc_file_transfer(char *tname)
 600 {       /* name of temp file containing the whole message */
 601         char buf[128];
 602         char dest_dir[32];
 603         FILE *tfp,*uud;
 604         int a,b;
 605
 606         printf("netproc: processing network file transfer...\n");
 607         strcpy(dest_dir,config.c_bucket_dir);
 608
 609         tfp=fopen(tname,"rb");
 610         if (tfp==NULL) printf("netproc: cannot open %s\n",tname);
 611         getc(tfp); getc(tfp); getc(tfp);
 612         do {
 613                 a=getc(tfp);
 614                 if (a!='M') {
 615                         fpgetfield(tfp,buf);
 616                         if (a=='O') for (b=0; b<MAXROOMS; ++b) {
 617                                 if (!strcasecmp(buf,roomnames[b]))
 618                                         strcpy(dest_dir,roomdirs[b]);
 619                                 }
 620                         }
 621                 } while ((a!='M')&&(a>=0));
 622         if (a!='M') {
 623                 fclose(tfp);
 624                 printf("netproc: no message text for file transfer\n");
 625                 return;
 626                 }
 627
 628         sprintf(buf,"cd %s/files/%s; exec %s",bbs_home_directory,dest_dir,UUDECODE);
 629         uud=(FILE *)popen(buf,"w");
 630         if (uud==NULL) {
 631                 printf("netproc: cannot open uudecode pipe\n");
 632                 fclose(tfp);
 633                 return;
 634                 }
 635
 636         fgets(buf,128,tfp);
 637         buf[strlen(buf)-1] = 0;
 638         for (a=0; a<strlen(buf); ++a) if (buf[a]=='/') buf[a]='_';
 639         fprintf(uud,"%s\n",buf);
 640         printf("netproc: %s\n",buf);
 641         while(a=getc(tfp), a>0) putc(a,uud);
 642         fclose(tfp);
 643         pclose(uud);
 644         return;
 645         }
 646
 647
 648 /* send a bounce message */
 649 void bounce(struct minfo *bminfo)
 650 {
 651
 652         FILE *bounce;
 653         char bfilename[64];
 654         static int bseq = 1;
 655         long now;
 656
 657         sprintf(bfilename,"./network/spoolin/bounce.%d.%d",getpid(),bseq++);
 658         bounce = fopen(bfilename,"wb");
 659         time(&now);
 660
 661         fprintf(bounce,"%c%c%c",0xFF,MES_NORMAL,0);
 662         fprintf(bounce,"Ppostmaster%c",0);
 663         fprintf(bounce,"T%ld%c",now,0);
 664         fprintf(bounce,"APostmaster%c",0);
 665         fprintf(bounce,"OMail%c",0);
 666         fprintf(bounce,"N%s%c",config.c_nodename,0);
 667         fprintf(bounce,"H%s%c",config.c_humannode,0);
 668
 669         if (strlen(bminfo->E) > 0) {
 670                 fprintf(bounce,"R%s%c",bminfo->E,0);
 671                 }
 672         else {
 673                 fprintf(bounce,"R%s%c",bminfo->A,0);
 674                 }
 675
 676         fprintf(bounce,"D%s%c",bminfo->N,0);
 677         fprintf(bounce,"M%s could not deliver your mail to:\n",
 678                 config.c_humannode);
 679         fprintf(bounce," \n %s\n \n",bminfo->R);
 680         fprintf(bounce," because there is no such user on this system.\n");
 681         fprintf(bounce," (Unsent message does *not* follow.  ");
 682         fprintf(bounce,"Help to conserve bandwidth.)\n%c",0);
 683         fclose(bounce);
 684         }
 685
 686
 687
 688 /*
 689  * process incoming files in ./network/spoolin
 690  */
 691 void inprocess(void) {
 692         FILE *fp,*message,*testfp,*ls;
 693         static struct minfo minfo;
 694         struct recentmsg recentmsg;
 695         char tname[128],aaa[1024],iname[256],sfilename[256],pfilename[256];
 696         int a,b;
 697         int FieldID;
 698         struct syslist *stemp;
 699         char *ptr = NULL;
 700         char buf[256];
 701         long msglen;
 702         int bloklen;
 703
 704
 705         sprintf(tname,"/tmp/net.t%d",getpid()); /* temp file name */
 706         sprintf(iname,"/tmp/net.i%d",getpid()); /* temp file name */
 707
 708         load_filterlist();
 709
 710         chdir(bbs_home_directory);
 711
 712         /* Let the shell do the dirty work. Get all data from spoolin */
 713     do {
 714         sprintf(aaa,"cd %s/network/spoolin; ls",bbs_home_directory);
 715         ls=popen(aaa,"r");
 716         if (ls==NULL) {
 717                 fprintf(stderr,"netproc: could not open dir cmd: %s\n",
 718                         strerror(errno));
 719                 }
 720         if (ls!=NULL) {
 721                 do {
 722                         ptr=fgets(sfilename,256,ls);
 723                         if (ptr!=NULL) sfilename[strlen(sfilename)-1] = 0;
 724                         } while( (ptr!=NULL)&&((!strcmp(sfilename,"."))
 725                                  ||(!strcmp(sfilename,".."))));
 726                 if (ptr!=NULL) printf("netproc: processing %s\n",sfilename);
 727                 pclose(ls);
 728                 }
 729
 730       if (ptr!=NULL) {
 731         sprintf(pfilename,"%s/network/spoolin/%s",bbs_home_directory,sfilename);
 732         fprintf(stderr,"netproc: processing <%s>\n", pfilename);
 733         fflush(stderr);
 734
 735         fp = fopen(pfilename, "rb");
 736         if (fp == NULL) {
 737             fprintf(stderr, "netproc: cannot open <%s>: %s\n",
 738                         pfilename, strerror(errno));
 739             fflush(stderr);
 740             fp = fopen("/dev/null" ,"rb");
 741             }
 742
 743 NXMSG:  /* Seek to the beginning of the next message */
 744         do {
 745                 a=getc(fp);
 746                 } while((a!=255)&&(a>=0));
 747         if (a<0) goto ENDSTR;
 748
 749         message = fopen(tname,"wb");    /* This crates the temporary file. */
 750         if (message == NULL) {
 751                 fprintf(stderr, "Error creating %s: %s\n",
 752                         tname, strerror(errno));
 753                 goto ENDSTR;
 754                 }
 755         putc(255,message);              /* 0xFF (start-of-message) */
 756         a = getc(fp); putc(a, message); /* type */
 757         a = getc(fp); putc(a, message); /* mode */
 758         do {
 759                 FieldID = getc(fp);     /* Header field ID */
 760                 putc(FieldID, message);
 761                 do {
 762                         a = getc(fp);
 763                         putc(a, message);
 764                         } while (a > 0);
 765                 } while ((FieldID != 'M') && (a >= 0)); /* M is always last */
 766
 767         msglen = ftell(message);
 768         fclose(message);
 769
 770         /* process the individual mesage */
 771         minfo.D[0]=0;
 772         minfo.C[0]=0;
 773         minfo.B[0]=0;
 774         minfo.G[0]=0;
 775         minfo.R[0]=0;
 776         msgfind(tname,&minfo);
 777         strncpy(recentmsg.RMnodename,minfo.N,9);
 778         recentmsg.RMnodename[9]=0;
 779         recentmsg.RMnum=minfo.I;
 780         printf("netproc: #%ld fm <%s> in <%s> @ <%s>\n",
 781                 minfo.I,minfo.A,minfo.O,minfo.N);
 782         if (strlen(minfo.R)>0) {
 783                 printf("         to <%s>",minfo.R);
 784                 if (strlen(minfo.D)>0) {
 785                         printf(" @ <%s>",minfo.D);
 786                         }
 787                 printf("\n");
 788                 }
 789         fflush(stdout);
 790         if (!strcasecmp(minfo.D,FQDN)) strcpy(minfo.D,NODENAME);
 791
 792         /* this routine updates our info on the system that sent the message */
 793         stemp = get_sys_ptr(minfo.N);
 794         if ((stemp == NULL) && (get_sys_ptr(minfo.nexthop) != NULL)) {
 795                 /* add non-neighbor system to map */
 796                 printf("Adding non-neighbor system <%s> to map\n", slist->s_name);
 797                 stemp = (struct syslist *)malloc((long)sizeof(struct syslist));
 798                 stemp->next = slist;
 799                 slist = stemp;
 800                 strcpy(slist->s_name,minfo.N);
 801                 strcpy(slist->s_type,"use");
 802                 strcpy(slist->s_nexthop,minfo.nexthop);
 803                 time(&slist->s_lastcontact);
 804                 }
 805         else if ((stemp == NULL) && (!strcasecmp(minfo.N,minfo.nexthop))) {
 806                 /* add neighbor system to map */
 807                 printf("Adding neighbor system <%s> to map\n", slist->s_name);
 808                 sprintf(aaa,"%s/network/systems/%s",bbs_home_directory,minfo.N);
 809                 testfp=fopen(aaa,"r");
 810                 if (testfp!=NULL) {
 811                         fclose(testfp);
 812                         stemp = (struct syslist *)
 813                                 malloc((long)sizeof(struct syslist));
 814                         stemp->next = slist;
 815                         slist = stemp;
 816                         strcpy(slist->s_name,minfo.N);
 817                         strcpy(slist->s_type,"bin");
 818                         strcpy(slist->s_nexthop,"Mail");
 819                         time(&slist->s_lastcontact);
 820                         }
 821                 }
 822         /* now update last contact and long node name if we can */
 823         if (stemp!=NULL) {
 824                 time(&stemp->s_lastcontact);
 825                 if (strlen(minfo.H) > 0) strcpy(stemp->s_humannode,minfo.H);
 826                 if (strlen(minfo.B) > 0) strcpy(stemp->s_phonenum,minfo.B);
 827                 if (strlen(minfo.G) > 0) strcpy(stemp->s_gdom,minfo.G);
 828                 }
 829
 830         /* route the message if necessary */
 831         if ((strcasecmp(minfo.D,NODENAME))&&(minfo.D[0]!=0)) {
 832                 a = get_sysinfo_type(minfo.D);
 833                 printf("netproc: routing message to system <%s>\n",minfo.D);
 834                 fflush(stdout);
 835                 if (a==M_INTERNET) {
 836                         if (fork()==0) {
 837                                 printf("netproc: netmailer %s\n", tname);
 838                                 fflush(stdout);
 839                                 execlp("./netmailer","netmailer",
 840                                         tname,NULL);
 841                                 printf("netproc: error running netmailer: %s\n",
 842                                         strerror(errno));
 843                                 fflush(stdout);
 844                                 exit(errno);
 845                                 }
 846                         else while (wait(&b)!=(-1));
 847                         }
 848                 else if (a==M_BINARY) {
 849                         ship_to(tname,minfo.D);
 850                         }
 851                 else {
 852                         /* message falls into the bit bucket? */
 853                         }
 854                 }
 855
 856         /* check to see if it's a file transfer */
 857         else if (!strncasecmp(minfo.S,"FILE",4)) {
 858                 proc_file_transfer(tname);
 859                 }
 860
 861         /* otherwise process it as a normal message */
 862         else {
 863
 864                 if (!strcasecmp(minfo.R, "postmaster")) {
 865                         strcpy(minfo.R, "");
 866                         strcpy(minfo.C, "Aide");
 867                         }
 868
 869                 if (strlen(minfo.R) > 0) {
 870                         sprintf(buf,"GOTO _MAIL_");
 871                         }
 872                 if (is_banned(minfo.A,minfo.C,minfo.N)) {
 873                         sprintf(buf,"GOTO %s", FILTERROOM);
 874                         }
 875                 else {
 876                         if (strlen(minfo.C) > 0) {
 877                                 sprintf(buf,"GOTO %s", minfo.C);
 878                                 }
 879                         else {
 880                                 sprintf(buf,"GOTO %s", minfo.O);
 881                                 }
 882                         }
 883                 serv_puts(buf);
 884                 serv_gets(buf);
 885                 if (buf[0] != '2') {
 886                         puts(buf); fflush(stdout);
 887                         sprintf(buf,"GOTO _BITBUCKET_");
 888                         serv_puts(buf);
 889                         serv_gets(buf);
 890                         }
 891
 892                 /* Open the temporary file containing the message */
 893                 message = fopen(tname, "rb");
 894                 if (message == NULL) {
 895                         fprintf(stderr, "netproc: cannot open %s: %s\n",
 896                                 tname, strerror(errno));
 897                         unlink(tname);
 898                         goto NXMSG;
 899                         }
 900
 901                 /* Transmit the message to the server */
 902                 sprintf(buf, "ENT3 1|%s|%ld", minfo.R, msglen);
 903                 printf("< %s\n", buf);
 904                 serv_puts(buf);
 905                 serv_gets(buf);
 906                 printf("> %s\n", buf);
 907                 if (!strncmp(buf, "570", 3)) {
 908                         /* no such user, do a bounce */
 909                         bounce(&minfo);
 910                         }
 911                 if (buf[0] == '7') {
 912                         /* Always use the server's idea of the message length,
 913                          * even though they should both be identical */
 914                         msglen = atol(&buf[4]);
 915                         while (msglen > 0L) {
 916                                 bloklen = ((msglen >= 255L) ? 255 : ((int)msglen));
 917                                 if (fread(buf, bloklen, 1, message) < 1) {
 918                                         fprintf(stderr, "netproc: error trying to read %d bytes: %s\n",
 919                                                 bloklen, strerror(errno));
 920                                         fflush(stderr);
 921                                         }
 922                                 serv_write(buf, bloklen);
 923                                 msglen = msglen - (long)bloklen;
 924                                 }
 925                         serv_puts("NOOP");
 926                         serv_gets(buf);
 927                         }
 928                 else {
 929                         puts(buf);
 930                         fflush(stdout);
 931                         }
 932
 933                 fclose(message);
 934                 }
 935
 936         unlink(tname);
 937         goto NXMSG;
 938
 939 ENDSTR: fclose(fp);
 940         unlink(pfilename);
 941         }
 942       } while(ptr!=NULL);
 943     unlink(iname);
 944     }
 945
 946
 947 int checkpath(char *path, char *sys)    /* Checks to see whether its ok to send */
 948                         /* Returns 1 for ok, send message       */
 949             {           /* Returns 0 if message already there   */
 950         int a;
 951         char sys2[512];
 952         strcpy(sys2,sys);
 953         strcat(sys2,"!");
 954
 955 #ifdef DEBUG
 956         printf("netproc: checkpath <%s> <%s> ... ",path,sys);
 957 #endif
 958         for (a=0; a<strlen(path); ++a) {
 959                 if (!strncmp(&path[a],sys2,strlen(sys2))) return(0);
 960                 }
 961         return(1);
 962         }
 963
 964 /*
 965  * implement split horizon algorithm
 966  */
 967 int ismsgok(long int mpos, FILE *mmfp, char *sysname)
 968 {
 969         int a;
 970         int ok = 0;             /* fail safe - no path, don't send it */
 971         char fbuf[256];
 972
 973         fseek(mmfp,mpos,0);
 974         if (getc(mmfp)!=255) return(0);
 975         getc(mmfp); getc(mmfp);
 976
 977         while (a=getc(mmfp),((a!='M')&&(a!=0))) {
 978                 fpgetfield(mmfp,fbuf);
 979                 if (a=='P') {
 980                         ok = checkpath(fbuf,sysname);
 981                         }
 982                 }
 983 #ifdef DEBUG
 984         printf("%s\n", ((ok)?"SEND":"(no)") );
 985 #endif
 986         return(ok);
 987         }
 988
 989 int spool_out(struct msglist *cmlist, FILE *destfp, char *sysname)      /* spool list of messages to a file */
 990                                         /* returns # of msgs spooled */
 991
 992
 993 {
 994         struct msglist *cmptr;
 995         FILE *mmfp;
 996         char mmtemp[128];
 997         char fbuf[128];
 998         int a;
 999         int msgs_spooled = 0;
1000         long msg_len;
1001         int blok_len;
1002
1003         char buf[256];
1004         char curr_rm[256];
1005
1006         strcpy(curr_rm, "");
1007         sprintf(mmtemp, "/tmp/net.m%d", getpid());
1008
1009         /* for each message in the list... */
1010         for (cmptr=cmlist; cmptr!=NULL; cmptr=cmptr->next) {
1011
1012                 /* make sure we're in the correct room... */
1013                 if (strcasecmp(curr_rm, cmptr->m_rmname)) {
1014                         sprintf(buf, "GOTO %s", cmptr->m_rmname);
1015                         serv_puts(buf);
1016                         serv_gets(buf);
1017                         if (buf[0] == '2') {
1018                                 strcpy(curr_rm, cmptr->m_rmname);
1019                                 }
1020                         else {
1021                                 fprintf(stderr,"%s\n", buf);
1022                                 }
1023                         }
1024
1025                 /* download the message from the server... */
1026                 mmfp = fopen(mmtemp, "wb");
1027                 sprintf(buf, "MSG3 %ld", cmptr->m_num);
1028                 serv_puts(buf);
1029                 serv_gets(buf);
1030                 if (buf[0]=='6') {                      /* read the msg */
1031                         msg_len = atol(&buf[4]);
1032                         while (msg_len > 0L) {
1033                                 blok_len = ((msg_len >= 256L) ? 256 : (int)msg_len);
1034                                 serv_read(buf, blok_len);
1035                                 fwrite(buf, blok_len, 1, mmfp);
1036                                 msg_len = msg_len - (long)blok_len;
1037                                 }
1038                         }
1039                 else {                                  /* or print the err */
1040                         fprintf(stderr, "%s\n", buf);
1041                         }
1042                 fclose(mmfp);
1043
1044                 mmfp = fopen(mmtemp,"rb");
1045
1046                 if (ismsgok(0L,mmfp,sysname)) {
1047                         ++msgs_spooled;
1048                         fflush(stdout);
1049                         fseek(mmfp,0L,0);
1050                         fread(fbuf,3,1,mmfp);
1051                         fwrite(fbuf,3,1,destfp);
1052                         while (a=getc(mmfp),((a!=0)&&(a!='M'))) {
1053                                 if (a!='C') putc(a,destfp);
1054                                 fpgetfield(mmfp,fbuf);
1055                                 if (a=='P') fprintf(destfp,"%s!",NODENAME);
1056                                 if (a!='C')
1057                                         fwrite(fbuf,strlen(fbuf)+1,1,destfp);
1058                                 }
1059                         if (a=='M') {
1060                                 fprintf(destfp, "C%s%c",
1061                                         cmptr->m_rmname, 0);
1062                                 putc('M',destfp);
1063                                 do {
1064                                         a=getc(mmfp);
1065                                         putc(a,destfp);
1066                                         } while(a>0);
1067                                 }
1068                         }
1069                 fclose(mmfp);
1070                 }
1071
1072         unlink(mmtemp);
1073         return(msgs_spooled);
1074         }
1075
1076 void outprocess(char *sysname) /* send new room messages to sysname */
1077                {
1078         char sysflnm[64];
1079         char srmname[32];
1080         char shiptocmd[128];
1081         char lbuf[64];
1082         char tempflnm[64];
1083         char buf[256];
1084         struct msglist *cmlist = NULL;
1085         struct rmlist *crmlist = NULL;
1086         struct rmlist *rmptr,*rmptr2;
1087         struct msglist *cmptr,*cmptr2;
1088         FILE *sysflfp,*tempflfp;
1089         int outgoing_msgs;
1090         long thismsg;
1091
1092         sprintf(tempflnm,"/tmp/%s.%d",NODENAME,getpid());
1093         tempflfp=fopen(tempflnm,"w");
1094         if (tempflfp==NULL) return;
1095
1096
1097 /*
1098  * Read system file for node in question and put together room list
1099  */
1100         sprintf(sysflnm,"%s/network/systems/%s",bbs_home_directory,sysname);
1101         sysflfp=fopen(sysflnm,"r");
1102         if (sysflfp==NULL) return;
1103         fgets(shiptocmd,128,sysflfp); shiptocmd[strlen(shiptocmd)-1]=0;
1104         while(!feof(sysflfp)) {
1105                 if (fgets(srmname,32,sysflfp)==NULL) break;
1106                 srmname[strlen(srmname)-1]=0;
1107                 fgets(lbuf,32,sysflfp);
1108                 rmptr=(struct rmlist *)malloc(sizeof(struct rmlist));
1109                 rmptr->next = NULL;
1110                 strcpy(rmptr->rm_name,srmname);
1111                 strip_trailing_whitespace(rmptr->rm_name);
1112                 rmptr->rm_lastsent = atol(lbuf);
1113                 if (crmlist==NULL) crmlist=rmptr;
1114                 else if (!strcasecmp(rmptr->rm_name,"control")) {
1115                         /* control has to be first in room list */
1116                         rmptr->next = crmlist;
1117                         crmlist = rmptr;
1118                         }
1119                 else {
1120                         rmptr2=crmlist;
1121                         while (rmptr2->next != NULL) rmptr2=rmptr2->next;
1122                         rmptr2->next=rmptr;
1123                         }
1124                 }
1125         fclose(sysflfp);
1126
1127 /*
1128  * Assemble list of messages to be spooled
1129  */
1130         for (rmptr=crmlist; rmptr!=NULL; rmptr=rmptr->next) {
1131
1132                 sprintf(buf,"GOTO %s",rmptr->rm_name);
1133                 serv_puts(buf);
1134                 serv_gets(buf);
1135                 if (buf[0]!='2') {
1136                         fprintf(stderr, "%s\n", buf);
1137                         }
1138                 else {
1139                         sprintf(buf, "MSGS GT|%ld", rmptr->rm_lastsent);
1140                         serv_puts(buf);
1141                         serv_gets(buf);
1142                         if (buf[0]=='1') while (serv_gets(buf), strcmp(buf,"000")) {
1143                                 thismsg = atol(buf);
1144                                 if ( thismsg > (rmptr->rm_lastsent) ) {
1145                                         rmptr->rm_lastsent = thismsg;
1146
1147                                 cmptr=(struct msglist *)
1148                                       malloc(sizeof(struct msglist));
1149                                         cmptr->next = NULL;
1150                                         cmptr->m_num = thismsg;
1151                                         strcpy(cmptr->m_rmname, rmptr->rm_name);
1152
1153                                         if (cmlist == NULL) cmlist = cmptr;
1154                                         else {
1155                                                 cmptr2 = cmlist;
1156                                                 while (cmptr2->next != NULL)
1157                                                 cmptr2 = cmptr2->next;
1158                                                 cmptr2->next = cmptr;
1159                                                 }
1160                                         }
1161                                 }
1162                         else {          /* print error from "msgs all" */
1163                                 fprintf(stderr, "%s\n", buf);
1164                                 }
1165                         }
1166                 }
1167
1168         outgoing_msgs=0; cmptr2=cmlist; /* this loop counts the messages */
1169         while (cmptr2!=NULL) {
1170                 ++outgoing_msgs;
1171                 cmptr2 = cmptr2->next;
1172                 }
1173         printf("netproc: %d messages to be spooled to %s\n",
1174                 outgoing_msgs,sysname);
1175         fflush(stdout);
1176
1177 /*
1178  * Spool out the messages, but only if there are any.
1179  */
1180         fflush(stdout);
1181         if (outgoing_msgs!=0) outgoing_msgs=spool_out(cmlist,tempflfp,sysname);
1182         printf("netproc: %d messages actually spooled\n",
1183                 outgoing_msgs);
1184         fflush(stdout);
1185
1186 /*
1187  * Deallocate list of spooled messages.
1188  */
1189         while(cmlist!=NULL) {
1190                 cmptr=cmlist->next;
1191                 free(cmlist);
1192                 cmlist=cmptr;
1193                 }
1194
1195 /*
1196  * Rewrite system file and deallocate room list.
1197  */
1198         printf("Spooling...\n");
1199         fflush(stdout);
1200         sysflfp=fopen(sysflnm,"w");
1201         fprintf(sysflfp,"%s\n",shiptocmd);
1202         for (rmptr=crmlist; rmptr!=NULL; rmptr=rmptr->next)
1203                 fprintf(sysflfp,"%s\n%ld\n",rmptr->rm_name,rmptr->rm_lastsent);
1204         fclose(sysflfp);
1205         while(crmlist!=NULL) {
1206                 rmptr=crmlist->next;
1207                 free(crmlist);
1208                 crmlist=rmptr;
1209                 }
1210
1211 /*
1212  * Close temporary file, ship it out, and return
1213  */
1214         fclose(tempflfp);
1215         if (outgoing_msgs!=0) ship_to(tempflnm,sysname);
1216         unlink(tempflnm);
1217         }
1218
1219
1220 /*
1221  * Connect netproc to the Citadel server running on this computer.
1222  */
1223 void np_attach_to_server(void) {
1224         char buf[256];
1225         char portname[8];
1226         char *args[] = { "netproc", "localhost", NULL, NULL } ;
1227
1228         printf("Attaching to server...\n");
1229         sprintf(portname, "%d", config.c_port_number);
1230         args[2] = portname;
1231         attach_to_server(3, args);
1232         serv_gets(buf);
1233         printf("%s\n",&buf[4]);
1234         sprintf(buf,"IPGM %d", config.c_ipgm_secret);
1235         serv_puts(buf);
1236         serv_gets(buf);
1237         printf("%s\n",&buf[4]);
1238         if (buf[0]!='2') {
1239                 cleanup(2);
1240                 }
1241         }
1242
1243
1244
1245 /*
1246  * main
1247  */
1248 void main(int argc, char **argv)
1249 {
1250         char allst[32];
1251         FILE *allfp;
1252         int a;
1253
1254
1255         strcpy(bbs_home_directory, BBSDIR);
1256
1257         /*
1258          * Change directories if specified
1259          */
1260         if (argv > 0) for (a=1; a<argc; ++a) {
1261                 if (!strncmp(argv[a], "-h", 2)) {
1262                         strcpy(bbs_home_directory, argv[a]);
1263                         strcpy(bbs_home_directory, &bbs_home_directory[2]);
1264                         home_specified = 1;
1265                         }
1266                 else {
1267                         fprintf(stderr, "netproc: usage: netproc [-hHomeDir]\n");
1268                         exit(1);
1269                         }
1270                 }
1271
1272         get_config();
1273
1274         /* write all messages to the log from this point onward */
1275         freopen(NPLOGFILE,NPLOGMODE,stdout);
1276         freopen(NPLOGFILE,NPLOGMODE,stderr);
1277
1278         if (set_lockfile()!=0) {
1279                 fprintf(stderr,"netproc: lock file exists: already running\n");
1280                 cleanup(1);
1281                 }
1282
1283         signal(SIGINT,cleanup);
1284         signal(SIGQUIT,cleanup);
1285         signal(SIGHUP,cleanup);
1286         signal(SIGTERM,cleanup);
1287
1288         printf("netproc: started.  pid=%d\n",getpid());
1289         fflush(stdout);
1290         np_attach_to_server();
1291         fflush(stdout);
1292
1293         if (load_roomnames()!=0) fprintf(stdout,"netproc: cannot load rooms\n");
1294         if (load_syslist()!=0) fprintf(stdout,"netproc: cannot load sysinfo\n");
1295         setup_special_nodes();
1296
1297         inprocess();    /* first collect incoming stuff */
1298
1299         allfp=(FILE *)popen("cd ./network/systems; ls","r");
1300         if (allfp!=NULL) {
1301                 while (fgets(allst,32,allfp)!=NULL) {
1302                         allst[strlen(allst)-1] = 0;
1303                         outprocess(allst);
1304                         }
1305                 pclose(allfp);
1306                 }
1307
1308         inprocess();    /* incoming again in case anything new was generated */
1309         rewrite_syslist();
1310         printf("netproc: processing ended.\n");
1311         cleanup(0);
1312         }
1313