mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-21 07:46:12 +08:00
119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
/*****************************************************************************
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* WARNING
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*
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* THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY.
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*
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* USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL
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* PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL,
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* AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES.
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*
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* THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS.
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*
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*****************************************************************************
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*
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* This file is part of loclass. It is a reconstructon of the cipher engine
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* used in iClass, and RFID techology.
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*
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* The implementation is based on the work performed by
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* Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
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* Milosch Meriac in the paper "Dismantling IClass".
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*
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* Copyright (C) 2014 Martin Holst Swende
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 loclass. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*
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****************************************************************************/
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#ifndef ON_DEVICE
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <stdarg.h>
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#include "fileutils.h"
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#include "ui.h"
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/**
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* @brief checks if a file exists
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* @param filename
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* @return
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*/
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int fileExists(const char *filename) {
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#ifdef _WIN32
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struct _stat st;
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int result = _stat(filename, &st);
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#else
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struct stat st;
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int result = stat(filename, &st);
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#endif
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return result == 0;
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}
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int saveFile(const char *preferredName, const char *suffix, const void* data, size_t datalen)
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{
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int size = sizeof(char) * (strlen(preferredName)+strlen(suffix)+10);
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char * fileName = malloc(size);
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memset(fileName,0,size);
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int num = 1;
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sprintf(fileName,"%s.%s", preferredName, suffix);
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while(fileExists(fileName))
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{
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sprintf(fileName,"%s-%d.%s", preferredName, num, suffix);
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num++;
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}
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/* We should have a valid filename now, e.g. dumpdata-3.bin */
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/*Opening file for writing in binary mode*/
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FILE *f = fopen(fileName,"wb");
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if (!f) {
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prnlog("Failed to write to file '%s'", fileName);
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free(fileName);
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return 1;
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}
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fwrite(data, 1, datalen, f);
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if (f)
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fclose(f);
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prnlog("Saved data to '%s'", fileName);
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free(fileName);
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return 0;
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}
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/**
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* Utility function to print to console. This is used consistently within the library instead
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* of printf, but it actually only calls printf (and adds a linebreak).
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* The reason to have this method is to
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* make it simple to plug this library into proxmark, which has this function already to
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* write also to a logfile. When doing so, just delete this function.
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* @param fmt
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*/
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void prnlog(char *fmt, ...)
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{
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char buffer[2048] = {0};
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va_list args;
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va_start(args,fmt);
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vsprintf (buffer,fmt, args);
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va_end(args);
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PrintAndLog(buffer);
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}
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#else //if we're on ARM
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void prnlog(char *fmt,...)
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{
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return;
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}
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#endif
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