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d60418a0 MHS |
1 | /***************************************************************************** |
2 | * WARNING | |
3 | * | |
4 | * THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY. | |
5 | * | |
6 | * USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL | |
7 | * PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL, | |
8 | * AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES. | |
9 | * | |
10 | * THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS. | |
11 | * | |
12 | ***************************************************************************** | |
13 | * | |
14 | * This file is part of loclass. It is a reconstructon of the cipher engine | |
15 | * used in iClass, and RFID techology. | |
16 | * | |
17 | * The implementation is based on the work performed by | |
18 | * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and | |
19 | * Milosch Meriac in the paper "Dismantling IClass". | |
20 | * | |
21 | * Copyright (C) 2014 Martin Holst Swende | |
22 | * | |
23 | * This is free software: you can redistribute it and/or modify | |
24 | * it under the terms of the GNU General Public License version 2 as published | |
25 | * by the Free Software Foundation. | |
26 | * | |
27 | * This file is distributed in the hope that it will be useful, | |
28 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
30 | * GNU General Public License for more details. | |
31 | * | |
32 | * You should have received a copy of the GNU General Public License | |
33 | * along with loclass. If not, see <http://www.gnu.org/licenses/>. | |
34 | * | |
35 | * | |
36 | * | |
37 | ****************************************************************************/ | |
b67f7ec3 | 38 | #ifndef ON_DEVICE |
d60418a0 | 39 | |
3ad48540 MHS |
40 | #include <stdio.h> |
41 | #include <string.h> | |
42 | #include <stdlib.h> | |
43 | #include <sys/stat.h> | |
44 | #include <stdarg.h> | |
45 | #include "fileutils.h" | |
46 | #include "ui.h" | |
47 | /** | |
48 | * @brief checks if a file exists | |
49 | * @param filename | |
50 | * @return | |
51 | */ | |
52 | int fileExists(const char *filename) { | |
3fe4ff4f | 53 | |
54 | #ifdef _WIN32 | |
55 | struct _stat st; | |
56 | int result = _stat(filename, &st); | |
57 | #else | |
3ad48540 MHS |
58 | struct stat st; |
59 | int result = stat(filename, &st); | |
3fe4ff4f | 60 | #endif |
3ad48540 MHS |
61 | return result == 0; |
62 | } | |
63 | ||
64 | int saveFile(const char *preferredName, const char *suffix, const void* data, size_t datalen) | |
65 | { | |
6116c796 | 66 | int size = sizeof(char) * (strlen(preferredName)+strlen(suffix)+10); |
3ad48540 MHS |
67 | char * fileName = malloc(size); |
68 | ||
69 | memset(fileName,0,size); | |
70 | int num = 1; | |
71 | sprintf(fileName,"%s.%s", preferredName, suffix); | |
72 | while(fileExists(fileName)) | |
73 | { | |
74 | sprintf(fileName,"%s-%d.%s", preferredName, num, suffix); | |
75 | num++; | |
76 | } | |
77 | /* We should have a valid filename now, e.g. dumpdata-3.bin */ | |
78 | ||
79 | /*Opening file for writing in binary mode*/ | |
80 | FILE *fileHandle=fopen(fileName,"wb"); | |
81 | if(!fileHandle) { | |
d60418a0 | 82 | prnlog("Failed to write to file '%s'", fileName); |
ca4714cd | 83 | free(fileName); |
3ad48540 MHS |
84 | return 1; |
85 | } | |
86 | fwrite(data, 1, datalen, fileHandle); | |
87 | fclose(fileHandle); | |
d60418a0 | 88 | prnlog("Saved data to '%s'", fileName); |
3ad48540 MHS |
89 | free(fileName); |
90 | ||
91 | return 0; | |
92 | } | |
93 | ||
94 | /** | |
95 | * Utility function to print to console. This is used consistently within the library instead | |
96 | * of printf, but it actually only calls printf (and adds a linebreak). | |
97 | * The reason to have this method is to | |
98 | * make it simple to plug this library into proxmark, which has this function already to | |
99 | * write also to a logfile. When doing so, just delete this function. | |
100 | * @param fmt | |
101 | */ | |
102 | void prnlog(char *fmt, ...) | |
103 | { | |
6f101995 | 104 | char buffer[2048] = {0}; |
3ad48540 MHS |
105 | va_list args; |
106 | va_start(args,fmt); | |
6f101995 | 107 | vsprintf (buffer,fmt, args); |
3ad48540 | 108 | va_end(args); |
6f101995 MHS |
109 | PrintAndLog(buffer); |
110 | ||
3ad48540 | 111 | } |
b67f7ec3 MHS |
112 | #else //if we're on ARM |
113 | void prnlog(char *fmt,...) | |
114 | { | |
115 | return; | |
116 | } | |
117 | ||
118 | #endif |