linux errno 101

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

int main() {
    int sockfd;
    struct sockaddr_in serv_addr;

    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        perror("socket creation failed");
        exit(EXIT_FAILURE);
    }

    memset(&serv_addr, 0, sizeof(serv_addr));

    serv_addr.sin_family = AF_INET;
    serv_addr.sin_port = htons(8080);

    // Convert IPv4 and IPv6 addresses from text to binary form
    if (inet_pton(AF_INET, "192.168.1.1", &serv_addr.sin_addr) <= 0) {
        perror("inet_pton failed");
        close(sockfd);
        exit(EXIT_FAILURE);
    }

    if (connect(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
        if (errno == ENETUNREACH) {
            fprintf(stderr, "Error: Network is unreachable\n");
        } else {
            perror("connect failed");
        }
        close(sockfd);
        exit(EXIT_FAILURE);
    }

    printf("Connected successfully\n");

    close(sockfd);
    return 0;
}