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

extern char** environ;

int main() {

    int input_pipes[2];
    if (pipe(input_pipes) < 0){
        printf("can't open pipe");
        exit(1);
    }

    char* bufToWrite = (char*)malloc(1024*1024);
    strcpy(bufToWrite, "http://yandex.ru");
    if (write(input_pipes[1], &bufToWrite, sizeof(bufToWrite)) != sizeof(bufToWrite)){
        printf("can't write into pipe");
        exit(1);
    }

    char* bufToRead = (char*)malloc(1024*1024);
    read(input_pipes[0], &bufToRead, sizeof(bufToRead));

    char* fifoName = (char*)malloc(255);
    strcpy(fifoName, "bashFifo");

    unlink(fifoName);
    if (mkfifo(fifoName, O_RDWR | O_CREAT | S_IRWXU | O_NONBLOCK) < 0){
        printf("can't create bash fifo");
        exit(1);
    }

    char* query = (char*)malloc(1024*1024);
    strcpy(query, "curl ");
    strcat(query, bufToRead);
    strcat(query, " >");
    strcat(query, fifoName);

    char* args[] = {"/bin/bash", "-c", query, NULL};

    pid_t pid = fork();
    if (pid == 0){
        execv(args[0], args);
        printf("error in exec process"); // successful exec shouldn't be here
    }

    char* readFromBash = (char*)malloc(256);
    int bashFD;
    if ((bashFD = open(fifoName, O_RDONLY)) < 0){
        printf("error opening bash fifo");
        exit(1);
    }
    read(bashFD, &readFromBash, 256);
    printf("\n--------\n%s", readFromBash);
    close(bashFD);
    return 0;
}