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https://github.com/Proxmark/proxmark3.git
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3ad48540d4
Conflicts: README.txt armsrc/apps.h client/Makefile client/cmdhficlass.c client/cmdhficlass.h
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#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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struct stat st;
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int result = stat(filename, &st);
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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)+5);
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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 *fileHandle=fopen(fileName,"wb");
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if(!fileHandle) {
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prnlog("Failed to write to file '%s'", fileName);
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return 1;
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}
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fwrite(data, 1, datalen, fileHandle);
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fclose(fileHandle);
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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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va_list args;
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va_start(args,fmt);
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PrintAndLog(fmt, args);
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//vprintf(fmt,args);
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va_end(args);
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//printf("\n");
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}
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