linux-imx

/*

 * Returns allocated NULL-terminated string containing process

 * command line, with inter-argument NULLs replaced with spaces,

 * and other special characters escaped.

 */

char *kstrdup_quotable_cmdline(struct task_struct *task, gfp_t gfp)

{

    char *buffer, *quoted;

    int i, res;

​

    if (!buffer)

        return NULL;

​

    res = get_cmdline(task, buffer, PAGE_SIZE - 1);

    buffer[res] = '\0';

​

    /* Collapse trailing NULLs, leave res pointing to last non-NULL. */

    while (--res >= 0 && buffer[res] == '\0')

        ;

​

 * there is an error, the leading character will be "<".

 */

char *kstrdup_quotable_file(struct file *file, gfp_t gfp)

{

    char *temp, *pathname;

​

    if (!file)

        return kstrdup("<unknown>", gfp);

​

    /* We add 11 spaces for ' (deleted)' to be appended */

    if (!temp)

        return kstrdup("<no_memory>", gfp);

​

    pathname = file_path(file, temp, PATH_MAX + 11);

    if (IS_ERR(pathname))

        pathname = kstrdup("<too_long>", gfp);

    else

        pathname = kstrdup_quotable(pathname, gfp);

​

    kfree(temp);