#define _GNU_SOURCE

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

int
main(int argc, char *argv[])
{
    char *filename = NULL, *volname = NULL, *cmd = NULL;
    char buffer[1024] = {
        0,
    };
    int fd = -1;
    int ret = -1;
    struct stat statbuf = {
        0,
    };

    if (argc != 3) {
        fprintf(stderr, "usage: %s <file-name> <volname>\n", argv[0]);
        goto out;
    }

    filename = argv[1];
    volname = argv[2];

    fd = open(filename, O_RDWR | O_CREAT, 0);
    if (fd < 0) {
        fprintf(stderr, "open (%s) failed (%s)\n", filename, strerror(errno));
        goto out;
    }

    ret = write(fd, "test-content", 12);
    if (ret < 0) {
        fprintf(stderr, "write failed (%s)", strerror(errno));
        goto out;
    }

    ret = fsync(fd);
    if (ret < 0) {
        fprintf(stderr, "fsync failed (%s)", strerror(errno));
        goto out;
    }

    ret = fstat(fd, &statbuf);
    if (ret < 0) {
        fprintf(stderr, "fstat failed (%s)", strerror(errno));
        goto out;
    }

    ret = asprintf(&cmd, "gluster --mode=script volume stop %s force", volname);
    if (ret < 0) {
        fprintf(stderr, "cannot construct cli command string (%s)",
                strerror(errno));
        goto out;
    }

    ret = system(cmd);
    if (ret < 0) {
        fprintf(stderr, "stopping volume (%s) failed", volname);
        goto out;
    }

    sleep(3);

    ret = read(fd, buffer, 1024);
    if (ret >= 0) {
        fprintf(stderr,
                "read should've returned error, "
                "but is successful\n");
        ret = -1;
        goto out;
    }

    ret = 0;
out:
    return ret;
}