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devtools/decodemsg: decode encoded_short_ids. 

$ devtools/decodemsg 010806226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f000000000000ffff0100160178da6360486760606400824c285d00a60111710144
$ devtools/decodemsg 010506226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f00110000006700000100000000690000010000

Before:
    WIRE_REPLY_CHANNEL_RANGE:
    chain_hash=0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206
    first_blocknum=0
    number_of_blocks=65535
    complete=1
    encoded_short_ids=[0178da6360486760606400824c285d00a60111710144]
    WIRE_QUERY_SHORT_CHANNEL_IDS:
    chain_hash=0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206
    encoded_short_ids=[0000006700000100000000690000010000]

After:

    WIRE_REPLY_CHANNEL_RANGE:
    chain_hash=0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206
    first_blocknum=0
    number_of_blocks=65535
    complete=1
    encoded_short_ids=[ (ZLIB) 103:1:0 105:1:0 112:1:0 ]
    WIRE_QUERY_SHORT_CHANNEL_IDS:
    chain_hash=0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206
    encoded_short_ids=[ (UNCOMPRESSED) 103:1:0 105:1:0 ]

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2018-06-28 11:04:47 +09:30 committed by Christian Decker
parent 9d3ce87700
commit 01c02fd617
3 changed files with 47 additions and 0 deletions
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1
devtools/Makefile
View File

@ -8,6 +8,7 @@ DEVTOOLS_COMMON_OBJS := \
common/bech32.o \
common/bech32_util.o \
common/bolt11.o \
common/decode_short_channel_ids.o \
common/hash_u5.o \
common/type_to_string.o \
common/utils.o \

1
devtools/decodemsg.c
View File

@ -1,4 +1,5 @@
#include <ccan/err/err.h>
#include <common/decode_short_channel_ids.h>
#include <common/utils.h>
#include <devtools/gen_print_wire.h>
#include <stdio.h>

45
devtools/print_wire.c
View File

@ -1,5 +1,6 @@
#include <ccan/mem/mem.h>
#include <ccan/utf8/utf8.h>
#include <common/decode_short_channel_ids.h>
#include <common/type_to_string.h>
#include <devtools/print_wire.h>
#include <errno.h>
@ -100,6 +101,46 @@ static void printwire_addresses(const u8 **cursor, size_t *plen, size_t len)
printf(" ]\n");
}
static void printwire_encoded_short_ids(const u8 **cursor, size_t *plen, size_t len)
{
struct short_channel_id *scids;
u8 *arr = tal_arr(tmpctx, u8, len);
fromwire_u8_array(cursor, plen, arr, len);
if (!*cursor)
return;
printf("[");
scids = decode_short_ids(tmpctx, arr);
if (scids) {
switch (arr[0]) {
case SHORTIDS_UNCOMPRESSED:
printf(" (UNCOMPRESSED)");
break;
case SHORTIDS_ZLIB:
printf(" (ZLIB)");
break;
default:
abort();
}
for (size_t i = 0; i < tal_count(scids); i++)
printf(" %s",
short_channel_id_to_str(tmpctx, &scids[i]));
} else {
/* If it was unknown, that's different from corrupt */
if (len == 0
|| arr[0] == SHORTIDS_UNCOMPRESSED
|| arr[0] == SHORTIDS_ZLIB) {
printf(" **CORRUPT**");
return;
} else {
printf(" UNKNOWN:");
print_hexstring(cursor, plen, len);
}
}
printf(" ]\n");
}
void printwire_u8_array(const char *fieldname, const u8 **cursor, size_t *plen, size_t len)
{
if (streq(fieldname, "node_announcement.alias")) {
@ -110,6 +151,10 @@ void printwire_u8_array(const char *fieldname, const u8 **cursor, size_t *plen,
printwire_addresses(cursor, plen, len);
return;
}
if (strends(fieldname, ".encoded_short_ids")) {
printwire_encoded_short_ids(cursor, plen, len);
return;
}
printf("[");
if (!print_hexstring(cursor, plen, len))