| 1 | #define INCL_DOS
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| 2 | #define INCL_WIN
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| 3 |
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| 4 | #include <os2.h>
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| 5 | #include <stdlib.h>
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| 6 | #include <stdio.h>
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| 7 | #include <string.h>
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| 8 | #include <share.h>
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| 9 | #include <io.h>
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| 10 | #include "fm3dll.h"
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| 11 | #include "fm3str.h"
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| 12 | #include "version.h"
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| 13 |
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| 14 | #pragma alloc_text(STRINGS,LoadStrings,GetPString)
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| 15 |
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| 16 | static char **strs,*str;
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| 17 | static ULONG numStr;
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| 18 |
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| 19 |
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| 20 | BOOL LoadStrings (char *filename) {
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| 21 |
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| 22 | /*
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| 23 | * Load strings from FM3RES.STR, with some error-checking.
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| 24 | * Return TRUE on success, FALSE on error.
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| 25 | */
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| 26 |
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| 27 | BOOL ret = FALSE;
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| 28 | ULONG size,len,totalsize;
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| 29 | USHORT vermajor = 0,verminor = 0;
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| 30 | register char *p;
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| 31 | register ULONG x;
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| 32 | FILE *fp;
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| 33 |
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| 34 | if(!filename)
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| 35 | filename = "FM3RES.STR";
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| 36 | numStr = 0;
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| 37 | if(str)
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| 38 | DosFreeMem(str);
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| 39 | strs = NULL;
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| 40 | str = NULL;
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| 41 |
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| 42 | fp = _fsopen(filename,
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| 43 | "rb",
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| 44 | SH_DENYWR);
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| 45 | if(fp) {
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| 46 | if(fread(&numStr,
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| 47 | sizeof(numStr),
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| 48 | 1,
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| 49 | fp) &&
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| 50 | numStr == IDS_NUMSTRS &&
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| 51 | fread(&len,sizeof(len),1,fp) &&
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| 52 | fread(&vermajor,sizeof(vermajor),1,fp) &&
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| 53 | fread(&verminor,sizeof(verminor),1,fp) &&
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| 54 | (vermajor >= VERMAJORBREAK &&
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| 55 | (vermajor > VERMAJORBREAK ||
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| 56 | verminor >= VERMINORBREAK))) {
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| 57 | fseek(fp,0,SEEK_END);
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| 58 | size = ftell(fp) - ((sizeof(ULONG) * 2) + (sizeof(USHORT) * 2));
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| 59 | if(size &&
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| 60 | size == len) {
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| 61 | fseek(fp,(sizeof(ULONG) * 2) + (sizeof(USHORT) * 2),SEEK_SET);
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| 62 | /*
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| 63 | * NOTE: Make one memory object for both str and strs
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| 64 | * for efficiency.
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| 65 | */
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| 66 | totalsize = size + sizeof(ULONG);
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| 67 | totalsize += (totalsize % sizeof(ULONG));
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| 68 | len = totalsize;
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| 69 | totalsize += (numStr * sizeof(char *));
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| 70 | totalsize += 4;
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| 71 | if(!DosAllocMem((PPVOID)&str,totalsize,
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| 72 | PAG_COMMIT | PAG_READ | PAG_WRITE) &&
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| 73 | str) {
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| 74 | strs = (char **)(str + len);
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| 75 | if(fread(str,1,size,fp) == size) {
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| 76 | p = str;
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| 77 | for(x = 0;x < numStr;x++) {
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| 78 | if(p - str >= size)
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| 79 | break;
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| 80 | strs[x] = p;
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| 81 | while(*p)
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| 82 | p++;
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| 83 | p++;
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| 84 | }
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| 85 | if(x == numStr)
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| 86 | ret = TRUE;
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| 87 | }
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| 88 | if(ret)
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| 89 | /* set pages to readonly */
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| 90 | DosSetMem(str,
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| 91 | totalsize,
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| 92 | PAG_COMMIT | PAG_READ);
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| 93 | }
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| 94 | }
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| 95 | }
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| 96 | fclose(fp);
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| 97 | }
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| 98 |
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| 99 | if(!ret) {
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| 100 | numStr = 0;
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| 101 | if(str)
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| 102 | DosFreeMem(str);
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| 103 | str = NULL;
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| 104 | strs = NULL;
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| 105 | }
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| 106 |
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| 107 | return ret;
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| 108 | }
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| 109 |
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| 110 |
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| 111 | char *GetPString (ULONG id) {
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| 112 |
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| 113 | /*
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| 114 | * return a readonly pointer to the requested string in memory
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| 115 | */
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| 116 |
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| 117 | return (id < numStr && str && strs && strs[id]) ? strs[id] : NullStr;
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| 118 | }
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| 119 |
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| 120 |
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| 121 | BOOL StringsLoaded (void) {
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| 122 |
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| 123 | return (numStr && str && strs);
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| 124 | }
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