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#include <stdio.h>
#include <float.h>
#include <limits.h>
#include <stdint.h>
#include <inttypes.h>
#include "blobmsg.h"
#include "blobmsg_json.h"
static const char *indent_str = "\t\t\t\t\t\t\t\t\t\t\t\t\t";
#define indent_printf(indent, ...) do { \
if (indent > 0) \
fwrite(indent_str, indent, 1, stderr); \
fprintf(stderr, __VA_ARGS__); \
} while(0)
static void dump_attr_data(struct blob_attr *data, int indent, int next_indent);
static void
dump_table(struct blob_attr *head, size_t len, int indent, bool array)
{
struct blob_attr *attr;
struct blobmsg_hdr *hdr;
indent_printf(indent, "{\n");
__blob_for_each_attr(attr, head, len) {
hdr = blob_data(attr);
if (!array)
indent_printf(indent + 1, "%s : ", hdr->name);
dump_attr_data(attr, 0, indent + 1);
}
indent_printf(indent, "}\n");
}
static void dump_attr_data(struct blob_attr *data, int indent, int next_indent)
{
int type = blobmsg_type(data);
switch(type) {
case BLOBMSG_TYPE_STRING:
indent_printf(indent, "%s (str)\n", blobmsg_get_string(data));
break;
case BLOBMSG_TYPE_INT8:
indent_printf(indent, "%d (i8)\n", (int8_t) blobmsg_get_u8(data));
break;
case BLOBMSG_TYPE_INT16:
indent_printf(indent, "%d (i16)\n", (int16_t) blobmsg_get_u16(data));
break;
case BLOBMSG_TYPE_INT32:
indent_printf(indent, "%d (i32)\n", (int32_t) blobmsg_get_u32(data));
break;
case BLOBMSG_TYPE_INT64:
indent_printf(indent, "%"PRId64" (i64)\n", (int64_t) blobmsg_get_u64(data));
break;
case BLOBMSG_TYPE_DOUBLE:
indent_printf(indent, "%lf (dbl)\n", blobmsg_get_double(data));
break;
case BLOBMSG_TYPE_TABLE:
case BLOBMSG_TYPE_ARRAY:
if (!indent)
indent_printf(indent, "\n");
dump_table(blobmsg_data(data), blobmsg_data_len(data),
next_indent, type == BLOBMSG_TYPE_ARRAY);
break;
}
}
enum {
FOO_MESSAGE,
FOO_LIST,
FOO_TESTDATA
};
static const struct blobmsg_policy pol[] = {
[FOO_MESSAGE] = {
.name = "message",
.type = BLOBMSG_TYPE_STRING,
},
[FOO_LIST] = {
.name = "list",
.type = BLOBMSG_TYPE_ARRAY,
},
[FOO_TESTDATA] = {
.name = "testdata",
.type = BLOBMSG_TYPE_TABLE,
},
};
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif
static void dump_message(struct blob_buf *buf)
{
struct blob_attr *tb[ARRAY_SIZE(pol)];
if (blobmsg_parse(pol, ARRAY_SIZE(pol), tb, blob_data(buf->head), blob_len(buf->head)) != 0) {
fprintf(stderr, "Parse failed\n");
return;
}
if (tb[FOO_MESSAGE])
fprintf(stderr, "Message: %s\n", (char *) blobmsg_data(tb[FOO_MESSAGE]));
if (tb[FOO_LIST]) {
fprintf(stderr, "List: ");
dump_table(blobmsg_data(tb[FOO_LIST]), blobmsg_data_len(tb[FOO_LIST]), 0, true);
}
if (tb[FOO_TESTDATA]) {
fprintf(stderr, "Testdata: ");
dump_table(blobmsg_data(tb[FOO_TESTDATA]), blobmsg_data_len(tb[FOO_TESTDATA]), 0, false);
}
}
static void
fill_message(struct blob_buf *buf)
{
void *tbl;
blobmsg_add_string(buf, "message", "Hello, world!");
tbl = blobmsg_open_table(buf, "testdata");
blobmsg_add_double(buf, "dbl-min", DBL_MIN);
blobmsg_add_double(buf, "dbl-max", DBL_MAX);
blobmsg_add_u8(buf, "foo", 0);
blobmsg_add_u8(buf, "poo", 100);
blobmsg_add_u8(buf, "moo-min", INT8_MIN);
blobmsg_add_u8(buf, "moo-max", INT8_MAX);
blobmsg_add_u16(buf, "bar-min", INT16_MIN);
blobmsg_add_u16(buf, "bar-max", INT16_MAX);
blobmsg_add_u32(buf, "baz-min", INT32_MIN);
blobmsg_add_u32(buf, "baz-max", INT32_MAX);
blobmsg_add_u64(buf, "taz-min", INT64_MIN);
blobmsg_add_u64(buf, "taz-max", INT64_MAX);
blobmsg_add_string(buf, "world", "2");
blobmsg_close_table(buf, tbl);
tbl = blobmsg_open_array(buf, "list");
blobmsg_add_u8(buf, NULL, 0);
blobmsg_add_u8(buf, NULL, 100);
blobmsg_add_u8(buf, NULL, INT8_MIN);
blobmsg_add_u8(buf, NULL, INT8_MAX);
blobmsg_add_u16(buf, NULL, INT16_MIN);
blobmsg_add_u16(buf, NULL, INT16_MAX);
blobmsg_add_u32(buf, NULL, INT32_MIN);
blobmsg_add_u32(buf, NULL, INT32_MAX);
blobmsg_add_u64(buf, NULL, INT64_MIN);
blobmsg_add_u64(buf, NULL, INT64_MAX);
blobmsg_add_double(buf, NULL, DBL_MIN);
blobmsg_add_double(buf, NULL, DBL_MAX);
blobmsg_close_table(buf, tbl);
}
int main(int argc, char **argv)
{
char *json = NULL;
static struct blob_buf buf;
blobmsg_buf_init(&buf);
fill_message(&buf);
fprintf(stderr, "[*] blobmsg dump:\n");
dump_message(&buf);
json = blobmsg_format_json(buf.head, true);
if (!json)
exit(EXIT_FAILURE);
fprintf(stderr, "\n[*] blobmsg to json: %s\n", json);
blobmsg_buf_init(&buf);
if (!blobmsg_add_json_from_string(&buf, json))
exit(EXIT_FAILURE);
fprintf(stderr, "\n[*] blobmsg from json:\n");
dump_message(&buf);
if (buf.buf)
free(buf.buf);
free(json);
return 0;
}
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