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C/C++ Source or Header  |  1995-04-04  |  9KB  |  230 lines
  1. /*
  2. ** Access to RAW-Nodelist using NODELIST.RDX.
  3. **
  4. ** Copyright 1995 St.Slabihoud. Freeware.
  5. **
  6. ** You may copy and distribute this source, documentation and
  7. ** executable code as you receive it. You can use this source
  8. ** in your own programs.
  9. */
  10.  
  11. #include <stdio.h>
  12. #include <stdlib.h>
  13. #include <string.h>
  14. #include <ext.h>
  15. #include <time.h>
  16. #include <portab.h>
  17. #include <defines.h>
  18.  
  19. #define VERSION    "0.10"
  20.  
  21. HEADER         header;
  22. NLHEADER    *nlheader;
  23. ENTRY         entry;
  24.  
  25. static ulong crc_32_tab[] = { /* CRC polynomial 0xedb88320 */
  26. 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L,
  27. 0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L,
  28. 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L,
  29. 0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L,
  30. 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
  31. 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L,
  32. 0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, 0xb8bda50fL,
  33. 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL,
  34. 0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L,
  35. 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
  36. 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L,
  37. 0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L,
  38. 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL,
  39. 0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L,
  40. 0x5005713cL, 0x270241aaL, 0xbe0b1010L, 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
  41. 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL,
  42. 0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, 0x73dc1683L,
  43. 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L,
  44. 0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L,
  45. 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
  46. 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL,
  47. 0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, 0x4669be79L,
  48. 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL,
  49. 0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL,
  50. 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
  51. 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L,
  52. 0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, 0x18b74777L,
  53. 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L,
  54. 0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL,
  55. 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
  56. 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL,
  57. 0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL
  58. };
  59.  
  60. #define UPDC32(octet, crc) (crc_32_tab[((crc) ^ (octet)) & 0xff] ^ ((crc) >> 8))
  61.  
  62. unsigned long crc32str(char *s)
  63. {    register ulong oldcrc32,oldcrc;
  64.     oldcrc32 = 0xFFFFFFFFL; 
  65.     while (*s) 
  66.     {    oldcrc32 = UPDC32((uword) *s, oldcrc32);
  67.         s++;
  68.     }
  69.     oldcrc = oldcrc32 = ~oldcrc32;
  70.     return (oldcrc);
  71. }
  72.  
  73. word compare(ENTRY *e1, ENTRY *e2)
  74. {
  75.     if (e1->nodelist < e2->nodelist)
  76.         return(-1);
  77.     else if (e1->nodelist > e2->nodelist)
  78.         return(1);
  79.     else if (e1->zone < e2->zone)
  80.         return(-1);
  81.     else if (e1->zone > e2->zone)
  82.         return(1);
  83.     else if (e1->net < e2->net)
  84.         return(-1);
  85.     else if (e1->net > e2->net)
  86.         return(1);
  87.     else if (e1->node < e2->node)
  88.         return(-1);
  89.     else if (e1->node > e2->node)
  90.         return(1);
  91.     else if (e1->point < e2->point)
  92.         return(-1);
  93.     else if (e1->point > e2->point)
  94.         return(1);
  95.     else
  96.         return(0);
  97. }
  98.  
  99. static byte *fconvert(uword flags)
  100. {    static byte temp[40], *p;
  101.     p=temp;
  102.     if (flags & F_MO)    { strcpy(p,"MO,"); p+=3; }
  103.     if (flags & F_CM)    { strcpy(p,"CM,"); p+=3; }
  104.     if (p>temp)
  105.         p--;
  106.     *p='\0';
  107.     return(temp);
  108. }
  109.  
  110. static byte *sconvert(uword status)
  111. {    static byte temp[40];
  112.     switch(status)
  113.     { case NODE        : strcpy(temp,"Node or Pointsystem"); break;
  114.         case ZONE        : strcpy(temp,"Zone");        break;
  115.         case REGION    : strcpy(temp,"Region");    break;
  116.         case HOST        : strcpy(temp,"Host");        break;
  117.         case HUB        : strcpy(temp,"Hub");            break;
  118.         case PVT        : strcpy(temp,"Private");    break;
  119.         case DOWN        : strcpy(temp,"Down");        break;
  120.         case HOLD        : strcpy(temp,"Hold");        break;
  121.         default            : strcpy(temp,"Unknown");    break;
  122.     }
  123.     return(temp);
  124. }
  125.  
  126. int main(void)
  127. {    uword zone,net,node,point,i;
  128.     ubyte tmp[256];
  129.     ulong entries,cnt,crc32;
  130.     FILE    *fp,*fptmp;
  131.     ENTRY *tempentry,*found;
  132.  
  133.     printf("GETRAWNL V"VERSION"   Nodelist-Utility (Demo)    (c) Stephan Slabihoud 1995\n\n\n");
  134.  
  135. /*
  136. ** Open Index-File
  137. */
  138.  
  139.     fp=fopen("NODELIST.RDX","rb");
  140.  
  141. /*
  142. ** Read Index-Header
  143. */
  144.  
  145.     fread(&header,sizeof(HEADER),1,fp);
  146.     printf("  Version: %u.%02u\n",header.version >> 8,header.version & 0xff);
  147.     printf("  Created: %s\n",ctime(&(time_t)header.datetime));
  148.     printf("Nodelists: %u\n",header.nodelists);
  149.     printf("   Sorted: %s\n\n",header.flag==0 ? "No" : "Yes (binary access possible)");
  150.  
  151. /*
  152. ** Now read all Nodelist-Header
  153. */
  154.  
  155.     nlheader = (NLHEADER *)malloc(sizeof(NLHEADER)*header.nodelists);
  156.     fread(&nlheader[0],sizeof(NLHEADER),header.nodelists,fp);
  157.     printf("Found following nodelists/pointlists:\n");
  158.     for (i=0; i<header.nodelists; i++)
  159.     {    printf("Day: %03u  - %s\n",nlheader[i].day,
  160.                                                                 *nlheader[i].network=='\0' ?
  161.                                                                         "unknown" : nlheader[i].network);
  162.     }
  163.     printf("\n");
  164.  
  165. /*
  166. ** And now search for the address. This could be done using the
  167. ** binary-search when all entries are sorted.
  168. */
  169.  
  170.     entries=(filelength(fileno(fp))-ftell(fp))/sizeof(ENTRY);
  171.     tempentry=(ENTRY *)calloc(entries,sizeof(ENTRY));
  172.     for (cnt=0;cnt<entries;cnt++)
  173.         fread(&tempentry[cnt],sizeof(ENTRY),1,fp);
  174.     printf("\n%lu entries found.\n\n\r",entries);
  175.  
  176.     for(;;)
  177.     {    printf("Search (address or complete name): ");
  178.         gets(tmp);
  179.         if (!(*tmp)) break;
  180.  
  181.         if (strchr(tmp,'/'))
  182.         {
  183.             sscanf(tmp,"%u:%u/%u.%u",&zone,&net,&node,&point);
  184.             printf("Searching for: %u:%u/%u.%u\n\n",zone,net,node,point);
  185.  
  186.             entry.zone=zone;
  187.             entry.net=net;
  188.             entry.node=node;
  189.             entry.point=point;
  190.             for (i=0; i<header.nodelists; i++)
  191.             {    entry.nodelist=i;
  192.                 found=bsearch(&entry,&tempentry[0],entries,sizeof(ENTRY),compare);
  193.                 if (found)
  194.                 {    printf("Address found in: %s\n",nlheader[found->nodelist].file);
  195.                     printf("  List is a %s\n",nlheader[found->nodelist].type==0 ? "Nodelist" : "Pointlist");
  196.                     printf("  Flags: %s\n",fconvert(found->flags));
  197.                     printf(" Status: %s\n",sconvert(found->status));
  198.                     fptmp=fopen(nlheader[found->nodelist].file,"rb");
  199.                     fseek(fptmp,found->offset,SEEK_SET);
  200.                     fgets(tmp,256,fptmp);
  201.                     printf("  Entry: %s\n\n",tmp);
  202.                     fclose(fptmp);
  203.                 }
  204.             }
  205.         }
  206.         else
  207.         {    
  208.             crc32=crc32str(strupr(tmp));
  209.             for (i=0; i<entries; i++)
  210.             {    if (crc32==tempentry[i].sysopcrc32)
  211.                 {    printf("Address found in: %s\n",nlheader[tempentry[i].nodelist].file);
  212.                     printf("email: %u:%u/%u.%u@%s\n",tempentry[i].zone,tempentry[i].net,tempentry[i].node,tempentry[i].point,nlheader[tempentry[i].nodelist].network);
  213.                     printf("  Flags: %s\n",fconvert(tempentry[i].flags));
  214.                     printf(" Status: %s\n",sconvert(tempentry[i].status));
  215.                     fptmp=fopen(nlheader[tempentry[i].nodelist].file,"rb");
  216.                     fseek(fptmp,tempentry[i].offset,SEEK_SET);
  217.                     fgets(tmp,256,fptmp);
  218.                     printf("  Entry: %s\n\n",tmp);
  219.                     fclose(fptmp);
  220.                 }
  221.             }
  222.         }
  223.     }
  224.  
  225.     free(tempentry);
  226.     free(nlheader);
  227.     fclose(fp);
  228.     return(0);
  229. }
  230.