119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
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/*
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* RabbitSign - Tools for signing TI graphing calculator software
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* Copyright (C) 2009 Benjamin Moody
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#ifdef TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# ifdef TM_IN_SYS_TIME
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#include "rabbitsign.h"
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#include "internal.h"
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#define BCD(x) ((x) + 6 * ((x)/10))
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/*
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* Write a TIFL header to a file.
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*/
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int rs_write_tifl_header(FILE* outfile, /* file to write to */
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int is_hex, /* is file in hex format? */
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int major, /* major version # */
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int minor, /* minor version # */
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int month, /* current month */
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int day, /* current day */
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int year, /* current year */
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const char* name, /* name of program */
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int calctype, /* calculator type */
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int datatype, /* data type */
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unsigned long filesize) /* size of data */
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{
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unsigned char buf[78];
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time_t t;
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struct tm* tm;
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memset(buf, 0, 78);
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strcpy((char*) buf, "**TIFL**");
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buf[8] = major;
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buf[9] = minor;
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if (is_hex) {
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buf[10] = 0x01;
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buf[11] = 0x88;
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}
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else {
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buf[10] = 0;
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buf[11] = 0;
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}
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if (!month && !day && !year) {
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time(&t);
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tm = localtime(&t);
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month = tm->tm_mon + 1;
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day = tm->tm_mday;
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year = tm->tm_year + 1900;
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}
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buf[12] = BCD(month);
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buf[13] = BCD(day);
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buf[14] = BCD(year / 100);
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buf[15] = BCD(year % 100);
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buf[16] = strlen(name);
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if (buf[16] > 8)
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buf[16] = 8;
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strncpy((char*) buf + 17, name, 8);
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buf[48] = calctype;
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buf[49] = datatype;
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buf[74] = filesize & 0xff;
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buf[75] = (filesize >> 8) & 0xff;
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buf[76] = (filesize >> 16) & 0xff;
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buf[77] = (filesize >> 24) & 0xff;
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if (fwrite(buf, 1, 78, outfile) != 78) {
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rs_error(NULL, NULL, "file I/O error");
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return RS_ERR_FILE_IO;
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}
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return RS_SUCCESS;
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}
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