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JSON: Add helper functions for building tokens

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Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2019-11-27 16:06:43 +02:00 committed by Jouni Malinen
parent 8e5e36a184
commit e75ab53222
2 changed files with 87 additions and 0 deletions
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76
src/utils/json.c
View file

@ -574,3 +574,79 @@ void json_print_tree(struct json_token *root, char *buf, size_t buflen)
buf[0] = '\0';
json_print_token(root, 1, buf, buflen);
}
void json_add_int(struct wpabuf *json, const char *name, int val)
{
wpabuf_printf(json, "\"%s\":%d", name, val);
}
void json_add_string(struct wpabuf *json, const char *name, const char *val)
{
wpabuf_printf(json, "\"%s\":\"%s\"", name, val);
}
int json_add_string_escape(struct wpabuf *json, const char *name,
const void *val, size_t len)
{
char *tmp;
size_t tmp_len = 6 * len + 1;
tmp = os_malloc(tmp_len);
if (!tmp)
return -1;
json_escape_string(tmp, tmp_len, val, len);
json_add_string(json, name, tmp);
bin_clear_free(tmp, tmp_len);
return 0;
}
int json_add_base64url(struct wpabuf *json, const char *name, const void *val,
size_t len)
{
char *b64;
b64 = base64_url_encode(val, len, NULL);
if (!b64)
return -1;
json_add_string(json, name, b64);
os_free(b64);
return 0;
}
void json_start_object(struct wpabuf *json, const char *name)
{
if (name)
wpabuf_printf(json, "\"%s\":", name);
wpabuf_put_u8(json, '{');
}
void json_end_object(struct wpabuf *json)
{
wpabuf_put_u8(json, '}');
}
void json_start_array(struct wpabuf *json, const char *name)
{
if (name)
wpabuf_printf(json, "\"%s\":", name);
wpabuf_put_u8(json, '[');
}
void json_end_array(struct wpabuf *json)
{
wpabuf_put_u8(json, ']');
}
void json_value_sep(struct wpabuf *json)
{
wpabuf_put_u8(json, ',');
}

11
src/utils/json.h
View file

@ -38,5 +38,16 @@ struct json_token * json_get_member(struct json_token *json, const char *name);
struct wpabuf * json_get_member_base64url(struct json_token *json,
const char *name);
void json_print_tree(struct json_token *root, char *buf, size_t buflen);
void json_add_int(struct wpabuf *json, const char *name, int val);
void json_add_string(struct wpabuf *json, const char *name, const char *val);
int json_add_string_escape(struct wpabuf *json, const char *name,
const void *val, size_t len);
int json_add_base64url(struct wpabuf *json, const char *name, const void *val,
size_t len);
void json_start_object(struct wpabuf *json, const char *name);
void json_end_object(struct wpabuf *json);
void json_start_array(struct wpabuf *json, const char *name);
void json_end_array(struct wpabuf *json);
void json_value_sep(struct wpabuf *json);
#endif /* JSON_H */