mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2025-08-14 18:48:13 -07:00
all works except of jansson private symbols linking
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parent
f03261be9a
commit
074c138de7
5 changed files with 108 additions and 4 deletions
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@ -318,6 +318,24 @@ struct tlvdb *tlvdb_find(struct tlvdb *tlvdb, tlv_tag_t tag) {
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return NULL;
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}
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struct tlvdb *tlvdb_find_full(struct tlvdb *tlvdb, tlv_tag_t tag) {
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if (!tlvdb)
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return NULL;
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for (; tlvdb; tlvdb = tlvdb->next) {
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if (tlvdb->tag.tag == tag)
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return tlvdb;
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if (tlvdb->children) {
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struct tlvdb * ch = tlvdb_find_full(tlvdb->children, tag);
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if (ch)
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return ch;
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}
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}
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return NULL;
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}
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struct tlvdb *tlvdb_find_path(struct tlvdb *tlvdb, tlv_tag_t tag[]) {
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int i = 0;
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struct tlvdb *tnext = tlvdb;
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@ -342,6 +360,52 @@ void tlvdb_add(struct tlvdb *tlvdb, struct tlvdb *other)
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tlvdb->next = other;
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}
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void tlvdb_change_or_add_node(struct tlvdb *tlvdb, tlv_tag_t tag, size_t len, const unsigned char *value)
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{
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struct tlvdb *telm = tlvdb_find_full(tlvdb, tag);
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if (telm == NULL) {
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// new tlv element
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tlvdb_add(tlvdb, tlvdb_fixed(tag, len, value));
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} else {
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// the same tlv structure
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if (telm->tag.tag == tag && telm->tag.len == len && !memcmp(telm->tag.value, value, len))
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return;
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// replace tlv element
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struct tlvdb *tnewelm = tlvdb_fixed(tag, len, value);
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tnewelm->next = telm->next;
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tnewelm->parent = telm->parent;
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// if telm stayed first in children chain
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if (telm->parent && telm->parent->children == telm) {
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telm->parent->children = tnewelm;
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}
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// if telm have previous element
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if (telm != tlvdb) {
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// elm in root
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struct tlvdb *celm = tlvdb;
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// elm in child list of node
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if (telm->parent && telm->parent->children)
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celm = telm->parent->children;
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// find previous element
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for (; celm; celm = celm->next) {
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if (celm->next == telm) {
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celm->next = tnewelm;
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break;
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}
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}
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}
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// free old element with childrens
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telm->next = NULL;
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tlvdb_free(telm);
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}
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return;
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}
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void tlvdb_visit(const struct tlvdb *tlvdb, tlv_cb cb, void *data, int level)
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{
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struct tlvdb *next = NULL;
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@ -394,6 +458,10 @@ const struct tlv *tlvdb_get_inchild(const struct tlvdb *tlvdb, tlv_tag_t tag, co
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return tlvdb_get(tlvdb, tag, prev);
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}
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const struct tlv *tlvdb_get_tlv(const struct tlvdb *tlvdb) {
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return &tlvdb->tag;
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}
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unsigned char *tlv_encode(const struct tlv *tlv, size_t *len)
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{
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size_t size = tlv->len;
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@ -452,3 +520,18 @@ bool tlv_equal(const struct tlv *a, const struct tlv *b)
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return a->tag == b->tag && a->len == b->len && !memcmp(a->value, b->value, a->len);
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}
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struct tlvdb *tlvdb_elm_get_next(struct tlvdb *tlvdb)
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{
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return tlvdb->next;
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}
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struct tlvdb *tlvdb_elm_get_children(struct tlvdb *tlvdb)
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{
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return tlvdb->children;
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}
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struct tlvdb *tlvdb_elm_get_parent(struct tlvdb *tlvdb)
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{
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return tlvdb->parent;
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}
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