1  /* ************************************************************************
 2  *  file:  split.c                                     Part of CircleMud   *
 3  *  Usage: split one large file into multiple smaller ones, with index     *
 4  *  Written by Jeremy Elson                                                *
 5  *  All Rights Reserved                                                    *
 6  *  Copyright (C) 1993 The Trustees of The Johns Hopkins University        *
 7  ************************************************************************* */
 8  
 9  /*
10   * This utility is meant to split a large file into multiple smaller ones,
11   * mainly to help break huge world files (ala Diku) into zone-sized files
12   * that are easier to manage.
13   *
14   * At each point in the original file where you want a break, insert a line
15   * containng "=filename" at the break point.
16   */
17  
18  #define INDEX_NAME "index"
19  #define BSZ 256
20  #define MAGIC_CHAR '='
21  
22  #include "conf.h"
23  #include "sysdep.h"
24  
25  int main(void)
26  {
27    char line[BSZ + 1];
28    FILE *index = 0, *outfile = 0;
29  
30    if (!(index = fopen(INDEX_NAME, "w"))) {
31      perror("error opening index for write");
32      exit(1);
33    }
34    while (fgets(line, BSZ, stdin)) {
35      if (*line == MAGIC_CHAR) {
36        *(strchr(line, '\n')) = '\0';
37        if (outfile) {
38  /*	fputs("$\n", outfile);*/
39  	fclose(outfile);
40        }
41        if (!(outfile = fopen((line + 1), "a"))) {
42  	perror("Error opening output file");
43  	exit(0);
44        }
45        fputs(line + 1, index);
46        fputs("\n", index);
47      } else if (outfile)
48        fputs(line, outfile);
49    }
50  
51    fputs("$\r\n", index);
52    fclose(index);
53    if (outfile)
54      fclose(outfile);
55  
56    return (0);
57  }