c677233dcb
so we don't need heap allocation. we will be calling this a lot in tight render loops, we don't want to be allocating on each frame. Signed-off-by: William Casarin <jb55@jb55.com>
70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
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#include "cursor.h"
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#include "invoice.h"
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#include "nostrdb.h"
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#include "bolt11/bolt11.h"
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#include "bolt11/amount.h"
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int ndb_encode_invoice(struct cursor *cur, struct bolt11 *invoice) {
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if (!invoice->description && !invoice->description_hash)
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return 0;
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if (!cursor_push_byte(cur, 1))
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return 0;
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if (!cursor_push_varint(cur, invoice->msat == NULL ? 0 : invoice->msat->millisatoshis))
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return 0;
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if (!cursor_push_varint(cur, invoice->timestamp))
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return 0;
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if (!cursor_push_varint(cur, invoice->expiry))
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return 0;
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if (invoice->description) {
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if (!cursor_push_byte(cur, 1))
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return 0;
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if (!cursor_push_c_str(cur, invoice->description))
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return 0;
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} else {
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if (!cursor_push_byte(cur, 2))
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return 0;
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if (!cursor_push(cur, invoice->description_hash->u.u8, 32))
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return 0;
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}
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return 1;
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}
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int ndb_decode_invoice(struct cursor *cur, struct ndb_invoice *invoice)
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{
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unsigned char desc_type;
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if (!cursor_pull_byte(cur, &invoice->version))
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return 0;
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if (!cursor_pull_varint(cur, &invoice->amount))
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return 0;
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if (!cursor_pull_varint(cur, &invoice->timestamp))
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return 0;
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if (!cursor_pull_varint(cur, &invoice->expiry))
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return 0;
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if (!cursor_pull_byte(cur, &desc_type))
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return 0;
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if (desc_type == 1) {
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if (!cursor_pull_c_str(cur, (const char**)&invoice->description))
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return 0;
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} else if (desc_type == 2) {
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invoice->description_hash = cur->p;
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if (!cursor_skip(cur, 32))
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return 0;
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} else {
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return 0;
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}
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return 1;
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}
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