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dump only leaf TLV data

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This commit is contained in:
pwpiwi 2017-11-10 23:09:08 +01:00
parent 43912d6349
commit 33a9982c76
4 changed files with 8 additions and 4 deletions
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1
client/emv/dump.h
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@ -17,6 +17,7 @@
#define DUMP_H
#include <stdio.h>
#include <stdbool.h>
void dump_buffer_simple(const unsigned char *ptr, size_t len, FILE *f);
void dump_buffer(const unsigned char *ptr, size_t len, FILE *f, int level);

6
client/emv/emvcore.c
View file

@ -10,9 +10,11 @@
#include "emvcore.h"
static bool print_cb(void *data, const struct tlv *tlv, int level) {
static bool print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) {
emv_tag_dump(tlv, stdout, level);
dump_buffer(tlv->value, tlv->len, stdout, level);
if (is_leaf) {
dump_buffer(tlv->value, tlv->len, stdout, level);
}
return true;
}

3
client/emv/tlv.c
View file

@ -317,7 +317,8 @@ void tlvdb_visit(const struct tlvdb *tlvdb, tlv_cb cb, void *data, int level)
for (; tlvdb; tlvdb = next) {
next = tlvdb->next;
cb(data, &tlvdb->tag, level);
bool is_leaf = (tlvdb->children == NULL);
cb(data, &tlvdb->tag, level, is_leaf);
tlvdb_visit(tlvdb->children, cb, data, level+1);
}
}

2
client/emv/tlv.h
View file

@ -31,7 +31,7 @@ struct tlv {
};
struct tlvdb;
typedef bool (*tlv_cb)(void *data, const struct tlv *tlv, int level);
typedef bool (*tlv_cb)(void *data, const struct tlv *tlv, int level, bool is_leaf);
struct tlvdb *tlvdb_fixed(tlv_tag_t tag, size_t len, const unsigned char *value);
struct tlvdb *tlvdb_external(tlv_tag_t tag, size_t len, const unsigned char *value);