Exemplos de display_creds_and_caps em C++ (Cpp)

Exemplo n.º 1

Arquivo: t_setns_userns.c Projeto: BigR-Lab/CodeRes_Cpp

int
main(int argc, char *argv[])
{
    int fd;

    if (argc < 2) {
        fprintf(stderr, "Usage: %s /proc/PID/ns/FILE\n", argv[0]);
        exit(EXIT_FAILURE);
    }

    display_creds_and_caps("Initial:\n");
    printf("\n");

    fd = open(argv[1], O_RDONLY); /* Get descriptor for namespace */
    if (fd == -1)
        errExit("open");

    if (setns(fd, CLONE_NEWUSER) == -1)  /* Join that namespace */
        errExit("setns-1");

    display_creds_and_caps("After setns():\n");
    exit(EXIT_SUCCESS);
}

Exemplo n.º 2

Arquivo: userns_setns_test.c Projeto: duxing2007/books-examples

static void
test_setns(char *pname, int fd)
{
    char path[PATH_MAX];
    ssize_t s;

    /* Display caller's user namespace ID */

    s = readlink("/proc/self/ns/user", path, PATH_MAX);
    if (s == -1)
        errExit("readlink");

    printf("%s readlink(\"/proc/self/ns/user\") ==> %s\n", pname, path);

    /* Attempt to join the user namespace specified by 'fd' */

    if (setns(fd, CLONE_NEWUSER) == -1)
        printf("%s setns() failed: %s\n", pname, strerror(errno));
    else {
        printf("%s setns() succeeded\n", pname);
        display_creds_and_caps(pname);
    }
}