dynamic_dname
return dynamic_dname(buffer, buflen, "/%s:%s",
return dynamic_dname(buffer, buflen, "anon_inode:%s",
return dynamic_dname(buffer, buflen, "%s:[%lu]",
return dynamic_dname(buffer, buflen, "anon_inode:[pidfd]");
return dynamic_dname(buffer, buflen, "pipe:[%lu]",
char *dynamic_dname(char *, int, const char *, ...);
return dynamic_dname(buffer, buflen, "socket:[%lu]",