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2aad3ffcf8
This is a common thing to do, so create a macro. Unfortunately, it still needs the type arg, because the paramter may be const, and the return cannot be, and C doesn't have a general "(-const)" cast. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
#include <ccan/cast/cast.h>
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#include <common/onionreply.h>
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#include <wire/wire.h>
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void towire_onionreply(u8 **cursor, const struct onionreply *r)
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{
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towire_u16(cursor, tal_count(r->contents));
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towire_u8_array(cursor, r->contents, tal_count(r->contents));
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}
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struct onionreply *fromwire_onionreply(const tal_t *ctx,
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const u8 **cursor, size_t *max)
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{
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struct onionreply *r = tal(ctx, struct onionreply);
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r->contents = tal_arr(r, u8, fromwire_u16(cursor, max));
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fromwire_u8_array(cursor, max, r->contents, tal_count(r->contents));
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if (!*cursor)
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return tal_free(r);
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return r;
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}
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struct onionreply *dup_onionreply(const tal_t *ctx,
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const struct onionreply *r TAKES)
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{
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struct onionreply *n;
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if (taken(r))
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return cast_const(struct onionreply *, tal_steal(ctx, r));
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n = tal(ctx, struct onionreply);
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n->contents = tal_dup_talarr(n, u8, r->contents);
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return n;
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}
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struct onionreply *new_onionreply(const tal_t *ctx, const u8 *contents TAKES)
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{
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struct onionreply *r = tal(ctx, struct onionreply);
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r->contents = tal_dup_talarr(r, u8, contents);
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return r;
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}
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