KolyaLab5

// 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;
}