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dbe1260b54
We'll need this for our lightning invoice view Signed-off-by: William Casarin <jb55@jb55.com>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* Encapsulation for pubkeys used as node ids: more compact, more dangerous. */
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#ifndef LIGHTNING_COMMON_NODE_ID_H
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#define LIGHTNING_COMMON_NODE_ID_H
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#include "config.h"
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#include "short_types.h"
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#include "tal.h"
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struct node_id {
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u8 k[33];
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};
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static inline bool node_id_eq(const struct node_id *a,
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const struct node_id *b)
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{
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return memcmp(a->k, b->k, sizeof(a->k)) == 0;
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}
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/* Is this actually a valid pubkey? Relatively expensive. */
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//bool node_id_valid(const struct node_id *id);
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/* Convert to hex string of SEC1 encoding. */
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char *node_id_to_hexstr(const tal_t *ctx, const struct node_id *id);
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/* Convert from hex string of SEC1 encoding: checks validity! */
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bool node_id_from_hexstr(const char *str, size_t slen, struct node_id *id);
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/* Compare the keys `a` and `b`. Return <0 if `a`<`b`, 0 if equal and >0 otherwise */
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int node_id_cmp(const struct node_id *a, const struct node_id *b);
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/* If the two nodes[] are id1 and id2, which index would id1 be? */
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static inline int node_id_idx(const struct node_id *id1,
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const struct node_id *id2)
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{
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return node_id_cmp(id1, id2) > 0;
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}
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/* marshal/unmarshal functions */
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#endif /* LIGHTNING_COMMON_NODE_ID_H */
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