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mateuszvis |
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/* This file is part of the svarlang project and is published under the terms
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* of the MIT license.
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*
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* Copyright (C) 2021-2022 Mateusz Viste
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <stdio.h> /* FILE */
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#include <stdlib.h> /* NULL */
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#include <string.h> /* memcmp(), strcpy() */
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#include "svarlang.h"
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mateuszvis |
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/* supplied through DEFLANG.C */
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extern char svarlang_mem[];
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extern const unsigned short svarlang_memsz;
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mateuszvis |
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const char *svarlang_strid(unsigned short id) {
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const char *ptr = svarlang_mem;
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/* find the string id in langblock memory */
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for (;;) {
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mateuszvis |
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if (((unsigned short *)ptr)[0] == id) return(ptr + 4);
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if (((unsigned short *)ptr)[1] == 0) return(ptr + 2); /* end of strings - return an empty string */
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ptr += ((unsigned short *)ptr)[1] + 4;
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mateuszvis |
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}
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}
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int svarlang_load(const char *progname, const char *lang, const char *nlspath) {
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unsigned short langid;
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FILE *fd;
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char buff[128];
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unsigned short buff16[2];
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unsigned short i;
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if ((lang == NULL) || (nlspath == NULL)) return(-1);
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langid = *((unsigned short *)lang);
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langid &= 0xDFDF; /* make sure lang is upcase */
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/* copy nlspath to buff and remember len */
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for (i = 0; nlspath[i] != 0; i++) buff[i] = nlspath[i];
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/* */
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if ((i > 0) && (buff[i - 1] == '\\')) i--;
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buff[i++] = '\\';
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strcpy(buff + i, progname);
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strcat(buff + i, ".lng");
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fd = fopen(buff, "rb");
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if (fd == NULL) return(-2);
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/* read hdr, should be "SvL\33" */
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if ((fread(buff, 1, 4, fd) != 4) || (memcmp(buff, "SvL\33", 4) != 0)) {
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fclose(fd);
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return(-3);
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}
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/* read next lang id in file */
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while (fread(buff16, 1, 4, fd) == 4) {
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/* is it the lang I am looking for? */
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if (buff16[0] != langid) { /* skip to next lang */
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fseek(fd, buff16[1], SEEK_CUR);
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continue;
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}
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/* found - but do I have enough memory space? */
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mateuszvis |
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if (buff16[1] >= svarlang_memsz) {
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mateuszvis |
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fclose(fd);
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return(-4);
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}
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/* load strings */
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if (fread(svarlang_mem, 1, buff16[1], fd) != buff16[1]) break;
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fclose(fd);
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return(0);
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}
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fclose(fd);
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return(-5);
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}
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