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/* Fuzz target: the JSON reader (src/jsonval.c).
*
* This is what the control API feeds every MSG_CMD line into, so its input
* is exactly "whatever a client wrote on the socket". Parse, then walk the
* whole value through the accessors cmd.c uses.
*/
#include "jsonval.h"
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
static void walk(const jv_t *v, int depth) {
if (!v || depth > 200) return;
(void)jv_str(v, "fallback");
(void)jv_int(v, -1);
(void)jv_bool(v, false);
if (v->kind == JV_OBJ) {
(void)jv_get(v, "no-such-key");
(void)jv_gets(v, "no-such-key", "fb");
(void)jv_geti(v, "no-such-key", 7);
(void)jv_getb(v, "no-such-key", true);
for (size_t i = 0; i < v->len; i++) {
(void)jv_get(v, v->keys[i]);
walk(v->kids[i], depth + 1);
}
} else if (v->kind == JV_ARR) {
for (size_t i = 0; i < v->len; i++) walk(v->kids[i], depth + 1);
} else if (v->kind == JV_STR) {
/* the string must really be len bytes and NUL-terminated */
if (v->str && strlen(v->str) > v->len) abort();
}
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
char *text = malloc(size + 1);
if (!text) return 0;
memcpy(text, data, size);
text[size] = '\0';
jv_t *v = jv_parse(text);
if (v) {
walk(v, 0);
jv_free(v);
}
free(text);
return 0;
}
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