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27 lines
624 B
C
27 lines
624 B
C
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#include "wire/wire_sync.h"
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#include <assert.h>
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#include <ccan/endian/endian.h>
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#include <ccan/read_write_all/read_write_all.h>
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bool wire_sync_write(int fd, const void *msg)
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{
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be16 be_len = cpu_to_be16(tal_count(msg));
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assert(be16_to_cpu(be_len) == tal_count(msg));
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return write_all(fd, &be_len, sizeof(be_len))
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&& write_all(fd, msg, tal_count(msg));
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}
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u8 *wire_sync_read(const tal_t *ctx, int fd)
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{
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be16 be_len;
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u8 *msg;
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if (!read_all(fd, &be_len, sizeof(be_len)))
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return NULL;
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msg = tal_arr(ctx, u8, be16_to_cpu(be_len));
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if (!read_all(fd, msg, be16_to_cpu(be_len)))
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return tal_free(msg);
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return msg;
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}
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