KolyaLab5(2)

// SYS_PROG_LAB1.cpp : Defines the entry point for the console application.
//
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <iostream>
#include <bitset>
#include <dirent.h>
#include <sys/stat.h>
int dirNameLen;
const int MAXBUFSIZE = 3000;
const int MAXSIGNSIZE = 50;
char sign[MAXSIGNSIZE] = "asdfasdfdfdf";
char fileName[255];
char times[40];
char buf[MAXBUFSIZE + MAXSIGNSIZE - 1];
int bufSize;
using namespace std;
using std::cin;
using std::cout;

int find_sing_in_buf() {
	int flag;
	if (strlen(buf) < strlen(sign))
		return 0;
	for (int i = 0;i < strlen(buf) - strlen(sign) + 1; i++) {
		flag = 1;
		for (int j = 0; j < strlen(sign) && flag; j++) {
			if (sign[j] != buf[i + j])
				flag = 0;
		}
		if (flag)
			return 1;
	}
	return 0;
}

int find_sign() {
	FILE *p;
	p = fopen(fileName, "rb");
	if (p == 0)
		return 0;
	int size;
	size = fread(buf, 1, bufSize, p);
	buf[size] = '\0';
	if (find_sing_in_buf())
		return 1;
	if (size < bufSize)
		return 0;
	for (int i = 0;i < strlen(sign) - 1;i++)
		buf[i] = buf[i + bufSize - strlen(sign) + 1];
	while (size = fread(buf+strlen(sign)-1, 1, bufSize, p))
		buf[size+strlen(sign)-1]='\0';
	if (find_sing_in_buf())
		return 1;
	if (size < bufSize)
		return 0;
	for (int i = 0; i < strlen(sign) - 1; i++)
		buf[i] = buf[i + bufSize];
	fclose(p);
	return 0;
}

void antiVirus(char* path) {
	DIR* ob = opendir(path);
	dirent* info;
	struct stat buf;
	// cout<<"Scanning directory "<<path<<endl;
	for (info=readdir(ob); info; info=readdir(ob)) {
		lstat(info->d_name,&buf);
		mode_t x=buf.st_mode;
		std::bitset<16> tmp(x);
		if ((strcmp(info->d_name,".")==0) || (strcmp(info->d_name,"..")==0))
			continue;
		if (info->d_type==DT_DIR) {
		//if (S_ISDIR(x))
			strcat(path,info->d_name);
			strcat(path,"/");
			antiVirus(path);
			//cout<<"Exiting "<<path<<endl;
			*(strrchr(path,'/'))='\0';
			*(strrchr(path,'/')+1)='\0';
		}
	}
	if (info->d_type==DT_REG) {
	//if (S_ISREG(x))
		strcat(path,info->d_name);
	// cout<<"Found file "<<info->d_name<<"; d_type is "<<int(info->d_type);
	// cout<<path<<endl;
		strcpy(fileName,path);
		fileName[strlen(path)]='\0';
	// cout<<fileName<<endl;
		if(find_sign()) {
			cout<<fileName<<endl;
		*(strrchr(path,'/')+1)='\0';
		}
	}
	closedir(ob);
}



int main(int argc, char **argv){
	bufSize = 32;
	char * dir=new char[255];
	// strcpy(dir,"/home/pirogki/");
	strcpy(dir,argv[1]);
	dir[strlen(argv[1])]='\0';
	strcpy(sign,argv[2]);
	sign[strlen(argv[2])]='\0';

	antiVirus(dir);
	delete dir;
	return 0;
}