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tlvstream: Allow overwriting an already set value

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This is necessary in the next commit to override the total_msat that is being
delivered to the destination.
This commit is contained in:
Christian Decker
2020-07-03 17:22:03 +02:00
parent c97ff05ffb
commit f6745682c3
1 changed files with 21 additions and 14 deletions
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35
wire/tlvstream.c
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@@ -21,13 +21,29 @@ void towire_tlvstream_raw(u8 **pptr, const struct tlv_field *fields)
}
}
static struct tlv_field *tlvstream_get_raw(struct tlv_field *stream, u64 type)
{
for (size_t i=0; i<tal_count(stream); i++)
if (stream[i].numtype == type)
return &stream[i];
return NULL;
}
void tlvstream_set_raw(struct tlv_field **stream, u64 type, void *value, size_t valuelen)
{
struct tlv_field f;
f.length = valuelen;
f.numtype = type;
f.value = tal_dup_arr(*stream, u8, value, f.length, 0);
tal_arr_expand(stream, f);
struct tlv_field f, *e = tlvstream_get_raw(*stream, type);
if (e != NULL) {
tal_free(e->value);
e->length = valuelen;
e->value = tal_dup_arr(*stream, u8, value, e->length, 0);
} else {
/* If we haven't found it insert it insead. */
f.length = valuelen;
f.numtype = type;
f.value = tal_dup_arr(*stream, u8, value, f.length, 0);
tal_arr_expand(stream, f);
}
}
void tlvstream_set_short_channel_id(struct tlv_field **stream, u64 type,
@@ -52,15 +68,6 @@ void tlvstream_set_tu32(struct tlv_field **stream, u64 type, u32 value)
tlvstream_set_raw(stream, type, ser, tal_bytelen(ser));
}
static struct tlv_field *tlvstream_get_raw(struct tlv_field *stream, u64 type)
{
for (size_t i=0; i<tal_count(stream); i++)
if (stream[i].numtype == type)
return &stream[i];
return NULL;
}
bool tlvstream_get_short_channel_id(struct tlv_field *stream, u64 type,
struct short_channel_id *value)
{