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jsonloadstr

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This commit is contained in:
merlokk 2018-11-19 11:16:39 +02:00
commit 94feba0d60
2 changed files with 18 additions and 0 deletions
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17
client/emv/emvjson.c
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@ -264,6 +264,23 @@ bool HexToBuffer(const char *errormsg, const char *hexvalue, uint8_t * buffer, s
return true;
}
int JsonLoadStr(json_t *root, char *path, char *value) {
if (!value)
return 1;
json_t *jelm = json_path_get((const json_t *)root, path);
if (!jelm || !json_is_string(jelm))
return 2;
const char * strval = json_string_value(jelm);
if (!strval)
return 1;
memcpy(value, strval, strlen(strval));
return 0;
}
int JsonLoadBufAsHex(json_t *elm, char *path, uint8_t *data, size_t maxbufferlen, size_t *datalen) {
if (datalen)
*datalen = 0;

1
client/emv/emvjson.h
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@ -33,6 +33,7 @@ extern int JsonSaveTLVTreeElm(json_t *elm, char *path, struct tlvdb *tlvdbelm, b
extern int JsonSaveTLVTree(json_t *root, json_t *elm, char *path, struct tlvdb *tlvdbelm);
extern int JsonLoadStr(json_t *root, char *path, char *value);
extern int JsonLoadBufAsHex(json_t *elm, char *path, uint8_t *data, size_t maxbufferlen, size_t *datalen);
extern bool ParamLoadFromJson(struct tlvdb *tlv);