int cr_save_filename(cr_errbuf_t *eb, struct file *cr_filp, struct file *filp, char *buf, int size) {
int retval;
if (!filp) {
retval = cr_save_pathname(eb, cr_filp, NULL, buf, size);
} else {
CR_PATH_DECL(path);
CR_PATH_GET_FILE(path, filp);
retval = cr_save_pathname(eb, cr_filp, path, buf, size);
path_put(path);
}
return retval;
}
/* Reopen the same filesystem object as an exsiting filp.
* Result is a distinct filp, with potentially different f_flags and f_mode.
*/
struct file *
cr_filp_reopen(struct file *orig_filp, int new_flags)
{
struct file *result;
CR_PATH_DECL(path);
result = ERR_PTR(-EBADF);
if (!orig_filp) goto out;
CR_PATH_GET_FILE(path, orig_filp);
result = cr_dentry_open_perm(path, new_flags);
out:
return result;
}
const char *
cr_location2path(cr_location_t *loc, char *buf, int size)
{
CR_PATH_DECL(path);
char *name = NULL;
CR_KTRACE_FUNC_ENTRY();
if (loc->filp) {
/* It's a file */
CR_PATH_GET_FILE(path, loc->filp);
name = cr_getpath(path, buf, size);
path_put(path);
} else if (loc->fs) {
/* It's a directory */
CR_PATH_GET_FS(path, loc->fs->pwd);
name = cr_getpath(path, buf, size - 2);
path_put(path);
if (name) {
int len = strlen(buf);
buf[len+0] = '/';
buf[len+1] = '.';
buf[len+2] = '\0';
}
} else {
/* I don't know what it is */
name = "";
}
if (!name) {
name = ERR_PTR(-EBADF);
}
return name;
}
