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devtools/decodemsg: new tool.

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$ ./devtools/decodemsg 00110000000000000000000000000000000000000000000000000000000000000000000e496e7465726e616c206572726f72
WIRE_ERROR:
channel_id=0000000000000000000000000000000000000000000000000000000000000000
data=[Internal error]

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2018-02-01 10:38:37 +10:30
parent 32abb4d928
commit fff7dd0826
4 changed files with 111 additions and 9 deletions
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60
devtools/print_wire.c Normal file
View File

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#include <common/type_to_string.h>
#include <devtools/print_wire.h>
#include <inttypes.h>
#include <stdio.h>
void printwire_u8(const u8 *v)
{
printf("%u", *v);
}
void printwire_u16(const u16 *v)
{
printf("%u", *v);
}
void printwire_u32(const u32 *v)
{
printf("%u", *v);
}
void printwire_u64(const u64 *v)
{
printf("%"PRIu64, *v);
}
void printwire_u8_array(const u8 **cursor, size_t *plen, size_t len)
{
printf("[");
while (len) {
u8 v = fromwire_u8(cursor, plen);
if (!*cursor)
return;
if (isprint(v))
printf("%c", v);
else
printf("\\x%02x", v);
len--;
}
printf("]\n");
}
#define PRINTWIRE_TYPE_TO_STRING(T, N) \
void printwire_##N(const T *v) \
{ \
const char *s = type_to_string(NULL, T, v); \
printf("%s\n", s); \
tal_free(s); \
}
#define PRINTWIRE_STRUCT_TYPE_TO_STRING(T) \
PRINTWIRE_TYPE_TO_STRING(struct T, T)
PRINTWIRE_STRUCT_TYPE_TO_STRING(bitcoin_blkid);
PRINTWIRE_STRUCT_TYPE_TO_STRING(bitcoin_txid);
PRINTWIRE_STRUCT_TYPE_TO_STRING(channel_id);
PRINTWIRE_STRUCT_TYPE_TO_STRING(preimage);
PRINTWIRE_STRUCT_TYPE_TO_STRING(pubkey);
PRINTWIRE_STRUCT_TYPE_TO_STRING(sha256);
PRINTWIRE_STRUCT_TYPE_TO_STRING(short_channel_id);
PRINTWIRE_TYPE_TO_STRING(secp256k1_ecdsa_signature, secp256k1_ecdsa_signature);