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bts310b5
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langload.c
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C/C++ Source or Header
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1993-05-17
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7KB
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273 lines
/*--------------------------------------------------------------------------*/
/* */
/* */
/* ------------ Bit-Bucket Software, Co. */
/* \ 10001101 / Writers and Distributors of */
/* \ 011110 / Freely Available<tm> Software. */
/* \ 1011 / */
/* ------ */
/* */
/* (C) Copyright 1987-90, Bit Bucket Software Co., a Delaware Corporation. */
/* */
/* */
/* This module was written by Vince Perriello */
/* */
/* */
/* BinkleyTerm Language File Loader */
/* */
/* */
/* For complete details of the licensing restrictions, please refer */
/* to the License agreement, which is published in its entirety in */
/* the MAKEFILE and BT.C, and also contained in the file LICENSE.240. */
/* */
/* USE OF THIS FILE IS SUBJECT TO THE RESTRICTIONS CONTAINED IN THE */
/* BINKLEYTERM LICENSING AGREEMENT. IF YOU DO NOT FIND THE TEXT OF */
/* THIS AGREEMENT IN ANY OF THE AFOREMENTIONED FILES, OR IF YOU DO */
/* NOT HAVE THESE FILES, YOU SHOULD IMMEDIATELY CONTACT BIT BUCKET */
/* SOFTWARE CO. AT ONE OF THE ADDRESSES LISTED BELOW. IN NO EVENT */
/* SHOULD YOU PROCEED TO USE THIS FILE WITHOUT HAVING ACCEPTED THE */
/* TERMS OF THE BINKLEYTERM LICENSING AGREEMENT, OR SUCH OTHER */
/* AGREEMENT AS YOU ARE ABLE TO REACH WITH BIT BUCKET SOFTWARE, CO. */
/* */
/* */
/* You can contact Bit Bucket Software Co. at any one of the following */
/* addresses: */
/* */
/* Bit Bucket Software Co. FidoNet 1:104/501, 1:132/491, 1:141/491 */
/* P.O. Box 460398 AlterNet 7:491/0 */
/* Aurora, CO 80046 BBS-Net 86:2030/1 */
/* Internet f491.n132.z1.fidonet.org */
/* */
/* Please feel free to contact us at any time to share your comments about */
/* our software and/or licensing policies. */
/* */
/*--------------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#ifdef __TOS__
#include <ext.h>
#else
#include <sys/types.h>
#include <sys/stat.h>
#endif
#include <string.h>
#ifdef __TURBOC__
#ifndef __TOS__
#include <alloc.h>
#endif
#else
#ifndef LATTICE
#include <malloc.h>
#endif
#endif
#include "bink.h"
#include "msgs.h"
#define LANGFILE "BINKLEY.LNG"
#define DEVICEDRIVER "BINKLEY.IO"
/*
* Read the compiled BinkleyTerm Language file.
*
*/
int load_language (void)
{
int pointer_size;
char *memory;
size_t memory_size;
char *malloc_target;
char *envptr;
char LANGpath[128];
int error;
int i;
size_t read;
struct stat stbuf;
FILE *fpt; /* stream pointer */
envptr = getenv ("BINKLEY"); /* get path from environment*/
if ((envptr != NULL) /* If there was one, and */
&& (!dexists (LANGFILE))) /* No local language file, */
{
(void) strcpy (LANGpath, envptr); /* use BINKLEY as our path */
(void) add_backslash (LANGpath);
}
else
LANGpath[0] = '\0';
strcat (LANGpath, LANGFILE);
/*
* Get some info about the file
*/
error = stat (LANGpath, &stbuf);
if (error != 0)
{
fprintf (stderr, "Cannot get information on file %s\n",LANGpath);
if (reset_port) exit_port();
exit (250);
}
/*
* Allocate space for the raw character array and for the
* pointer and fixup arrays
*
*/
memory_size = stbuf.st_size;
malloc_target = malloc (memory_size);
if (malloc_target == NULL)
{
fprintf (stderr, "Unable to allocate string memory\n");
if (reset_port) exit_port();
exit (250);
}
/*
* Open the input file
*
*/
fpt = fopen (LANGpath, read_binary); /* Open the file */
if (fpt == NULL) /* Were we successful? */
{
fprintf (stderr, "Can not open input file %s\n", LANGpath);
if (reset_port) exit_port();
exit (250);
}
/*
* Read the entire file into memory now.
*
*/
read = fread (malloc_target, 1, memory_size, fpt);
if (read != memory_size)
{
fprintf (stderr, "Could not read language data from file %s\n",LANGpath);
fclose (fpt);
if (reset_port) exit_port();
exit (250);
}
/*
* Close the file.
*
*/
error = fclose (fpt);
if (error != 0)
{
fprintf (stderr, "Unable to close language file %s\n",LANGpath);
if (reset_port) exit_port();
exit (250);
}
/*
* Do fixups on the string pointer array as follows:
*
* 1. Find the NULL pointer in the mess here.
* 2. Start of the string memory is the "following pointer".
* 3. Apply arithmetic correction to entire array.
*
*/
msgtxt = (char **) malloc_target;
for (i = 0; msgtxt[i] != NULL; i++) /* Find NULL marker in array */
;
pointer_size = i - 1; /* Count of elements w/o NULL*/
if (pointer_size != X_TOTAL_MSGS)
{
#ifdef NEW
fprintf(stderr, "Incompatible language file %s\n", LANGFILE);
fprintf(stderr, "It has %d messages instead of %d\n",
pointer_size, X_TOTAL_MSGS);
fprintf(stderr, "Recompile it by using BTLNG.TOS\n");
#else
fprintf (stderr, "Count of %d from file does not match %d required\n",
pointer_size, X_TOTAL_MSGS);
#endif
if (reset_port) exit_port();
exit (250);
}
memory = (char *) &msgtxt[++i]; /* Text starts after NULL */
for (i = 1; i <= pointer_size; i++)
{
msgtxt[i] = memory + (msgtxt[i] - msgtxt[0]);
}
msgtxt[0] = memory;
/* Read Device-Driver */
envptr = getenv ("BINKLEY"); /* get path from environment*/
if ((envptr != NULL) /* If there was one, and */
&& (!dexists (DEVICEDRIVER))) /* No local language file, */
{
(void) strcpy (LANGpath, envptr); /* use BINKLEY as our path */
(void) add_backslash (LANGpath);
}
else
LANGpath[0] = '\0';
strcat (LANGpath, DEVICEDRIVER);
error = stat (LANGpath, &stbuf);
if (error != 0)
{ fprintf (stderr, "Cannot get information on file %s\n",LANGpath);
if (reset_port) exit_port();
exit (250);
}
else
{ memory_size = stbuf.st_size;
malloc_target = malloc (memory_size);
if (malloc_target == NULL)
{
fprintf (stderr, "Unable to allocate devicedriver memory\n");
if (reset_port) exit_port();
exit (250);
}
fpt = fopen (LANGpath, read_binary); /* Open the file */
if (fpt == NULL) /* Were we successful? */
{
fprintf (stderr, "Can not open input file %s\n", LANGpath);
if (reset_port) exit_port();
exit (250);
}
read = fread (malloc_target, 1, memory_size, fpt);
if (read != memory_size)
{
fprintf (stderr, "Could not read devicedriver data from file %s\n",LANGpath);
fclose (fpt);
if (reset_port) exit_port();
exit (250);
}
error = fclose (fpt);
if (error != 0)
{
fprintf (stderr, "Unable to close devicedriver file %s\n",LANGpath);
if (reset_port) exit_port();
exit (250);
}
device_addr = (long) malloc_target;
}
return (1);
}