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- /************************************************************************
- *************************************************************************
- ** NOTE: **
- ** This Module is part of the ATARI ST Implementation of Parselst **
- ** It should NOT be used for general reference. Please read the com- **
- ** plete Disclaimer at the TOP of PARSELST.C. **
- ** Peter Glasmacher at 1:143/9 Ph (408)985-1538 **
- *************************************************************************
- *************************************************************************/
-
- /*----------------------------------------------------------------------*
- * Nodelist Parser *
- * *
- * This module was originally written by Bob Hartman *
- * Sysop of FidoNet node 1:132/101 *
- * *
- * Spark Software, 427-3 Amherst St, CS 2032, Suite 232, Nashua, NH 03061*
- * *
- * This program source code is being released with the following *
- * provisions: *
- * *
- * 1. You are free to make changes to this source code for use on *
- * your own machine, however, altered source files may not be *
- * distributed without the consent of Spark Software. *
- * *
- * 2. You may distribute "patches" or "diff" files for any changes *
- * that you have made, provided that the "patch" or "diff" files are *
- * also sent to Spark Software for inclusion in future releases of *
- * the entire package. A "diff" file for the source archives may *
- * also contain a compiled version, provided it is clearly marked *
- * as not being created from the original source code. *
- * No other executable versions may be distributed without the *
- * consent of Spark Software. *
- * *
- * 3. You are free to include portions of this source code in any *
- * program you develop, providing: a) Credit is given to Spark *
- * Software for any code that may is used, and b) The resulting *
- * program is free to anyone wanting to use it, including commercial *
- * and government users. *
- * *
- * 4. There is NO technical support available for dealing with this *
- * source code, or the accompanying executable files. This source *
- * code is provided as is, with no warranty expressed or implied *
- * (I hate legalease). In other words, if you don't know what to *
- * do with it, don't use it, and if you are brave enough to use it,*
- * you're on your own. *
- * *
- * Spark Software may be contacted by modem at (603) 888-8179 *
- * (node 1:132/101) *
- * on the public FidoNet network, or at the address given above. *
- * *
- *-----------------------------------------------------------------------*/
-
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include <ext.h>
- #include <ctype.h>
-
- #include "types.h"
- #include "pl.h"
-
- /*----------------------------------------------------------------------*
- * -rev 04-16-87 (abbreviated) *
- * The CRC-16 routines used by XMODEM, YMODEM, and ZMODEM *
- * are also in this file, a fast table driven macro version *
- *-----------------------------------------------------------------------*/
-
- /*----------------------------------------------------------------------*
- * crctab calculated by Mark G. Mendel, Network Systems Corporation *
- *-----------------------------------------------------------------------*/
- static unsigned short crctab[256] = {
- 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108,
- 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, 0x1231, 0x0210,
- 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339, 0x8318, 0xb37b,
- 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, 0x2462, 0x3443, 0x0420, 0x1401,
- 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee,
- 0xf5cf, 0xc5ac, 0xd58d, 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6,
- 0x5695, 0x46b4, 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d,
- 0xc7bc, 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
- 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, 0x5af5,
- 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd, 0xcbdc,
- 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, 0x6ca6, 0x7c87, 0x4ce4,
- 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae, 0xfd8f, 0xcdec, 0xddcd,
- 0xad2a, 0xbd0b, 0x8d68, 0x9d49, 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13,
- 0x2e32, 0x1e51, 0x0e70, 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a,
- 0x9f59, 0x8f78, 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e,
- 0xe16f, 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
- 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1,
- 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, 0xb5ea, 0xa5cb,
- 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 0x34e2, 0x24c3, 0x14a0,
- 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xa7db, 0xb7fa, 0x8799, 0x97b8,
- 0xe75f, 0xf77e, 0xc71d, 0xd73c, 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657,
- 0x7676, 0x4615, 0x5634, 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9,
- 0xb98a, 0xa9ab, 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882,
- 0x28a3, 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
- 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, 0xfd2e,
- 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26, 0x6c07,
- 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, 0xef1f, 0xff3e, 0xcf5d,
- 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74,
- 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
- };
-
- /*
- * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell.
- * NOTE: First argument must be in range 0 to 255.
- * Second argument is referenced twice.
- *
- * Programmers may incorporate any or all code into their programs,
- * giving proper credit within the source. Publication of the
- * source routines is permitted so long as proper credit is given
- * to Stephen Satchell, Satchell Evaluations and Chuck Forsberg,
- * Omen Technology.
- */
-
- #define updcrc(cp, crc) ( crctab[((crc >> 8) & 255) ^ cp] ^ (crc << 8))
-
- char old_name[13] = "NODELIST.*";
- char new_name[13] = "NODELIST.";
- char diff_name[13] = "NODEDIFF.*";
- FILE *old_file, *diff_file, *new_file;
- unsigned official_crc = 0;
- unsigned calc_crc = 0; /* Until I find out how to do the CRC */
-
- unsigned crcstr (char *buf, unsigned crc)
- {
- char *p;
-
- p = buf;
- fix_up (p);
-
- while (*p) {
- crc = updcrc (*p++, crc);
- }
-
- return (crc);
- }
-
- void fix_up (char *buf)
- {
- char *p;
-
- p = buf + strlen (buf) - 1;
- if (*p == '\n')
- --p;
- if (*p == '\r')
- --p;
- while (*p == ' ')
- --p;
- strcpy (++p, "\r\n");
-
- /* Now get rid of rotten chars */
- p = buf;
- while (*p) {
- if (*p >= 128)
- *p = '?';
- ++p;
- }
- }
-
- void edit (void) /* Add NODEDIFF to NODELIST */
- {
- int results;
-
- get_old_name (old_name);
- if (!get_diff_name (diff_name)) {
- results = open_infiles (old_name, diff_name);
- } else {
- results = 1;
- }
- if (results == 0)
- add_files ();
- close_files ();
- return;
- }
-
- void add_files (void) /* Actually put the new lines in here */
- {
- char old_line[256];
- char diff_line[256];
- char *pnt_line;
- char first_char;
- char *diff_result;
- char *old_result;
- char *ptr;
- int i, j, k;
- int first_diff;
-
- first_diff = 1;
-
- pnt_line = (char *) malloc (256);
-
- while ((diff_result = fgets (diff_line, 256, diff_file)) != NULL) {
- strcpy (pnt_line, diff_line);
- first_char = diff_line[0];
-
- switch (first_char) {
- case ';':
- continue;
-
- case 'D':
- j = atoi (pnt_line + 1);
- for (i = 0; i < j; i++) {
- old_result = fgets (old_line, 256, old_file);
- }
- break;
-
- case 'A':
- j = atoi (pnt_line + 1);
- for (i = 0; i < j; i++) {
- diff_result = fgets (diff_line, 256, diff_file);
- if (!first_diff)
- calc_crc = crcstr (diff_line, calc_crc);
- else {
- first_diff = 0;
- ptr = strrchr (diff_line, ':');
- if (ptr != NULL) {
- ++ptr;
- official_crc = atoi (ptr);
- }
- }
- k = fputs (diff_line, new_file);
- }
- break;
-
- case 'C':
- j = atoi (pnt_line + 1);
- for (i = 0; i < j; i++) {
- diff_result = fgets (old_line, 256, old_file);
- calc_crc = crcstr (old_line, calc_crc);
- k = fputs (old_line, new_file);
- }
- break;
-
- default:
- printf ("\n\tI don't understand this line.\n");
- break;
- }
- }
-
- if (calc_crc != official_crc)
- {
- fputs (";A This nodelist does not have the proper CRC!\r\n", new_file);
- printf ("This nodelist does not have the proper CRC %u/%u!\n",
- calc_crc, official_crc);
- printf ("Please check out the problem and correct it.\n\n");
- }
-
- fprintf (new_file, "%c", '\032');
-
- return;
- }
-
- void close_files (void)
- {
- if (old_file)
- fclose (old_file);
- if (new_file)
- fclose (new_file);
- if (new_file)
- fclose (diff_file);
-
- return;
- }
-
- open_infiles (char *nodelist, char *difflist)
- {
- char first_line[256], *result;
- char temp[11];
- int a_number, i, j;
- struct ffblk c_file;
-
- i = findfirst (new_name,&c_file,0);
- if (i == 0)
- {
- printf ("%s already exists.\n", new_name);
- return (1);
- }
- if ((old_file = fopen (nodelist, "rb"))==0) {
- printf ("Error opening old nodelist file!\n");
- return (1);
- }
- if ((diff_file = fopen (difflist, "rb"))==0)
- {
- printf ("Error opening nodediff file!\n");
- return (1);
- }
- result = fgets (first_line, 256, diff_file);
- for (i = 0; i < 80; i++)
- if (first_line[i] == ':')
- j = i;
- for (i = 0; i < 10; i++)
- temp[i] = first_line[i + j + 1];
- official_crc = atoi (temp);
- j -= 5;
- for (i = 0; i < 5; i++)
- temp[i] = first_line[i + j];
- temp[5] = '\0';
- j = atoi (temp);
- result = strrchr (nodelist, '.');
- result++;
- i = atoi (result);
- if (i != j)
- {
- printf ("NodeDiff doesn't match to existing Nodelist file! Skipping...\n");
- return (1);
- }
- new_file = fopen (new_name, "wb");
- if (new_file == NULL)
- {
- printf ("Can't open new nodelist file!\n");
- return (1);
- }
- printf ("Applying '%s' to '%s'\n", difflist, nodelist);
- return (0);
- }
-
- void get_old_name (char *temp_name)
- {
- char *temp;
- int i, j, k;
- struct ffblk c_file;
-
- temp = (char *)malloc (20);
-
- j = findfirst (temp_name,&c_file,0);
- while (j == 0) {
- temp = strrchr (c_file.ff_name, '.');
- temp++;
- if (isdigit (*temp) && isdigit (*(temp+1)) && isdigit (*(temp+2))) {
- i = atoi (temp);
- strcpy (old_name, c_file.ff_name);
- break;
- } else {
- j = findnext (&c_file);
- }
- }
-
- while (j == 0) {
- j = findnext (&c_file);
- temp = strrchr (c_file.ff_name, '.');
- if (temp) {
- temp++;
- if (isdigit (*temp) &&
- isdigit (*(temp+1)) &&
- isdigit (*(temp+2))) {
- k = atoi (temp);
-
- if ((i < k && (k - i) < 300) ||
- (k < i && (k - i) > 300)) {
- i = k;
- strcpy (old_name, c_file.ff_name);
- }
- }
- }
-
- }
- return;
- }
-
- get_diff_name (char *temp_name)
- {
- char *temp;
- int i, j, k;
- struct ffblk c_file;
-
- temp = (char *)malloc (80);
- if ((j = findfirst (temp_name,&c_file,0))!=0) {
- return (1);
- }
-
- while (j == 0) {
- temp = strrchr (c_file.ff_name, '.');
- if (temp) {
- temp++;
- if (isdigit (*temp) &&
- isdigit (*(temp+1)) &&
- isdigit (*(temp+2))) {
- i = atoi (temp);
- strcpy (diff_name, c_file.ff_name);
- break;
- } else {
- j = findnext (&c_file);
- }
- }
- }
-
- if (j != 0)
- return (1);
-
- while (j == 0) {
- j = findnext (&c_file);
- temp = strrchr (c_file.ff_name, '.');
- if (temp) {
- temp++;
- if (isdigit (*temp) &&
- isdigit (*(temp+1)) &&
- isdigit (*(temp+2))) {
- k = atoi (temp);
- if ((i < k && (k - i) < 300) ||
- (k < i && (k - i) > 300)) {
- i = k;
- strcpy (diff_name, c_file.ff_name);
- }
- }
- }
- }
- temp = strrchr (diff_name, '.');
- temp++;
- strcat (new_name, temp);
- return (0);
- }
-