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annotate urogue/dictutil.c @ 282:8b6aba552f6f

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Excise md_putchar(). The function wrapped the standard putchar(), doing nothing beside discarding the return value. That could cause problems with tputs(), which expects an int to be returned.
author John "Elwin" Edwards
date Mon, 18 Sep 2017 19:11:57 -0400
parents c4b12d2d1dcd
children 13b482bd9e66
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1 /*
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2 dictutil.c
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3
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4 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
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5 Copyright (C) 1995 Herb Chong
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6 All rights reserved.
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7
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8 See the file LICENSE.TXT for full copyright and licensing information.
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9 */
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10
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11 /*************************************************************************
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12 ** Utilities for Dictionary Maintenence Functions
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13 *************************************************************************/
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14
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15 static char sccsid[] = "%W% %G%";
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16
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17 #include <stdio.h>
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18 #include <string.h>
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19 #include <stdlib.h>
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20 #if !defined(OS2) && !defined(_WIN32)
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21 #include <unistd.h>
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22 #else
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23 #include <io.h>
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24 #include <fcntl.h>
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25 #endif
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26
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27 #include "dict.h"
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28 #include "dictutil.h"
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29 #include "rogue.h"
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30
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31 int dict_trace;
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32 FILE *ft;
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33
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34
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35 /***********
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36 ** Read 'count' characters into 'buffer' at 'offset' in a binary file
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37 ** Return 0 on success; -1 on failure;
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38 ***********/
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39
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40 int block_read( FILE *fi , char *buffer , size_t count , long offset )
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41 {
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42 if ( fseek(fi,offset,SEEK_SET) == -1 )
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43 return( -1 );
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44
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45 if ( fread(buffer,1,count,fi) != count )
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46 return( -1 );
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47 return( 0 );
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48 }
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49
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50 /***********
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51 ** Write 'count' characters from 'buffer' to a binary file.
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52 ** Return -1 on failure; 0 on success.
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53 ***********/
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54
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55 int block_write( FILE *fo , char *buffer , size_t count )
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56 {
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57 if ( fwrite(buffer,1,count,fo) != count )
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58 return( -1 );
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59 return( 0 );
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60 }
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61
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62 /***********
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63 ** Load a dictionary table entry with id TOC_id into memory pointed to by block.
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64 ** Update the dictionary TOC.
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65 ** If *block=NULL, allocate the block of memory.
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66 ** Return 0 on success; -1 on failure.
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67 ** Set dt_entry->ptr to where the block is stored.
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68 ***********/
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69
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70 void *dict_load_block( DICTIONARY *dict , char *toc_id ,
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71 FILE *fi , void *block )
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72 { DICT_TOC_ENTRY *dt_entry;
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73 static void *ptr;
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74 int index, ret_code;
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75
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76 index = dict_toc_index( dict , toc_id );
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77 if ( index != -1 ) { /* Found the id */
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78 dt_entry = &(dict->toc[index]);
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79 } else {
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80 signal_error( "dict_load_block: could not find TOC_id" , toc_id , 1 );
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81 return( NULL );
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82 } /* endif */
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83
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84 if ( block == NULL ) {
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85 ptr = malloc( dt_entry->size );
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86 if ( dict_trace > 3 ) {
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87 fprintf( ft , "\ndict_load_block allocates %lx bytes at location %p\n" ,
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88 dt_entry->size , ptr );
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89 } /* endif */
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90 } else {
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91 ptr = block;
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