for pasha

#include <unistd.h>
#include <stdio.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
#include <stdlib.h>

int ifAvi(const char * filePath);
int getSize(const char * filePath);
int ifSame(const char * firsFilePath, const char * secondFilePath);
void  aviCount(const char * dir,  int * aviAmount);
void getAviPathes(const char * dir,  char ** aviPathes);


//C:/Users/m video/Desktop/videos
int main(){
    char startDir[PATH_MAX+1], finishDir[PATH_MAX+1];
    int aviAmount = 0;

    gets(startDir);
    gets(finishDir);

    printf("-------------------------\n");

    strcat(finishDir, "/");
    strcat(finishDir, "avis");

    //mkdir(finishDir);

    aviCount(startDir, &aviAmount);
    printf("%d\n", aviAmount);

    char *aviPathes[aviAmount];
    for(int i;i<aviAmount;i++)
        aviPathes[i] = (char*)malloc(sizeof(char)*(PATH_MAX + 1));

    getAviPathes(startDir, aviPathes);

    printf("-------------------------\n");



    //for(int i = 0;i<aviAmount;i++)
        //printf("%s\n", aviPathes);

    return 0;
}
//C:/Users/m video/Desktop/videos
int getSize(const char * filePath){
    int size;

    FILE * f = fopen(filePath, "r");
    if(!f)return -1;

    fseek(f, 0L, SEEK_END);
    size = ftell(f);

    fclose(f);

    return size;
}
//C:/Users/m video/Desktop/videos
int ifAvi(const char * filePath){
    FILE * f = fopen(filePath, "rb");
    if(!f) return -1;

    char buf[13];
    size_t result = fread(buf, 1, 12, f);

    if(result < 12) return 0;

    if(buf[0] != 'R') return 0;
    if(buf[1] != 'I') return 0;
    if(buf[2] != 'F') return 0;
    if(buf[3] != 'F') return 0;
    if(buf[8] != 'A') return 0;
    if(buf[9] != 'V') return 0;
    if(buf[10] != 'I') return 0;

    fclose(f);
    return 1;
}
//C:/Users/m video/Desktop/videos
int ifSame(const char * firsFilePath, const char * secondFilePath){
    FILE * fisrtFile = fopen(firsFilePath, "r");
    if(!fisrtFile) return -1;

    FILE * secondFile = fopen(secondFilePath, "r");
    if(!secondFile) return -1;

    int firstFileSize = getSize(firsFilePath);
    int secondFileSize = getSize(secondFilePath);
    char first;
    char second;

    if(firstFileSize != secondFileSize) return 0;

    for(int i; i<firstFileSize; i++){
        first = fgetc(fisrtFile);
        second = fgetc(secondFile);
        if(first!=second) return 0;
    }
    return 1;
}
//C:/Users/m video/Desktop/videos
void aviCount(const char * dir, int * aviAmount){
    DIR *dp;
    if((dp = opendir(dir)) == NULL) {
        printf("cannot open directory\n");
        return;
    }

    char currentPath[PATH_MAX+1];

    struct dirent *entry;
    struct stat statbuf;

    chdir(dir);
    while((entry = readdir(dp)) != NULL) {

        strcpy(currentPath, dir);
        strcat(currentPath, "/");
        strcat(currentPath, entry->d_name);

        stat(entry->d_name,&statbuf);
        if(S_ISDIR(statbuf.st_mode)) {
            if(strcmp(".",entry->d_name) == 0 || strcmp("..",entry->d_name) == 0 || strcmp("avis",entry->d_name) == 0)
                continue;
            aviCount(currentPath, aviAmount);
        }
        if(ifAvi(currentPath) == 1) *(aviAmount) = *(aviAmount) + 1;
    }
    chdir("..");
    closedir(dp);
}
void getAviPathes(const char * dir, char ** aviPathes){
    DIR *dp;
    if((dp = opendir(dir)) == NULL) {
        printf("cannot open directory\n");
        return;
    }

    char currentPath[PATH_MAX+1];

    struct dirent *entry;
    struct stat statbuf;

    chdir(dir);
    while((entry = readdir(dp)) != NULL) {

        strcpy(currentPath, dir);
        strcat(currentPath, "/");
        strcat(currentPath, entry->d_name);

        stat(entry->d_name,&statbuf);
        if(S_ISDIR(statbuf.st_mode)) {
            if(strcmp(".",entry->d_name) == 0 || strcmp("..",entry->d_name) == 0 || strcmp("avis",entry->d_name) == 0)
                continue;
            getAviPathes(currentPath, aviPathes);
        }

        if(ifAvi(currentPath) == 1){

            printf("%s\n", currentPath);
            strcpy(*aviPathes,currentPath);
            aviPathes++;
        }
    }
    chdir("..");
    closedir(dp);
}