int ft_begin_node(struct ft_cxt *cxt, const char *name)
{
unsigned long nlen = strlen(name) + 1;
unsigned long len = 8 + _ALIGN(nlen, 4);
if (!ft_make_space(cxt, &cxt->p, FT_STRUCT, len))
return -1;
ft_put_word(cxt, OF_DT_BEGIN_NODE);
ft_put_bin(cxt, name, strlen(name) + 1);
return 0;
}
int ft_prop(struct ft_cxt *cxt, const char *name, const void *data,
unsigned int sz)
{
int off, len;
off = map_string(cxt, name);
if (off == NO_STRING)
return -1;
len = 12 + _ALIGN(sz, 4);
if (!ft_make_space(cxt, &cxt->p, FT_STRUCT, len))
return -1;
ft_put_word(cxt, OF_DT_PROP);
ft_put_word(cxt, sz);
ft_put_word(cxt, off);
ft_put_bin(cxt, data, sz);
return 0;
}
int ft_set_prop(struct ft_cxt *cxt, const void *phandle, const char *propname,
const void *buf, const unsigned int buflen)
{
struct ft_atom atom;
void *node;
char *p, *next;
int nextra, depth;
node = ft_node_ph2node(cxt, phandle);
if (node == NULL)
return -1;
depth = 0;
p = node;
while ((next = ft_next(cxt, p, &atom)) != NULL) {
switch (atom.tag) {
case OF_DT_BEGIN_NODE:
++depth;
break;
case OF_DT_END_NODE:
if (--depth > 0)
break;
/* haven't found the property, insert here */
cxt->p = p;
return ft_prop(cxt, propname, buf, buflen);
case OF_DT_PROP:
if ((depth != 1) || strcmp(atom.name, propname))
break;
/* found an existing property, overwrite it */
nextra = _ALIGN(buflen, 4) - _ALIGN(atom.size, 4);
cxt->p = atom.data;
if (nextra && !ft_make_space(cxt, &cxt->p, FT_STRUCT,
nextra))
return -1;
*(u32 *) (cxt->p - 8) = cpu_to_be32(buflen);
ft_put_bin(cxt, buf, buflen);
return 0;
}
p = next;
}
return -1;
}
static size_t ft_paramtwo(t_frmt *arg_frmt, double *param, size_t len)
{
char type;
type = arg_frmt->type;
if (type == 'c')
len += ft_putchar((char)param);
else if (type == 'u' || type == 'D')
{
ft_precision(arg_frmt->precision, (int)param);
len += ft_put_uint((long unsigned int)param);
}
else if (type == '%')
len += ft_putchar('%');
else if (type == 'p')
{
len += ft_putstr_l("0x7fff");
len += ft_put_hex((unsigned int)param, 0);
}
else if (type == 'b')
ft_put_bin((long long int)param);
return (len);
}
