accept read raw data from write message

It's difficult to encode the json with special characters such as '"', '>'...
encoding and unicoding these characters will change the length of json message,
it's a pain to get bytes contains these characters from json.

This patch allows to read the bytes contains special character outside the json.
for example:
{"container":"c5f67934326d2ecef59fee62148bc9237e2481cd803cc0760a6406da15f4ee60","file":"/tmp/aaa"}sssssss

Signed-off-by: Gao feng <omarapazanadi@gmail.com>

src/init.c

@@ -780,7 +780,7 @@ static int hyper_cmd_write_file(char *json, int length)
 	}
 
 	sprintf(path, "/tmp/hyper/%s/root/%s/", c->id, c->rootfs);
-	fprintf(stdout, "root directory for container is %s\n",path);
+	fprintf(stdout, "write file %s, data len %d\n", writter.file, writter.len);
 
 	/* TODO: wait for container finishing setup root */
 	if (chroot(path) < 0) {

src/jsmn.c

@@ -164,14 +164,18 @@ jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
 	int i;
 	jsmntok_t *token;
 	int count = 0;
+	int num = 0;
+	int out = 0;
 
-	for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
+	for (; parser->pos < len && js[parser->pos] != '\0' && !out; parser->pos++) {
 		char c;
 		jsmntype_t type;
 
 		c = js[parser->pos];
 		switch (c) {
-		case '{': case '[':
+		case '{':
+			num++;
+		case '[':
 			count++;
 			if (tokens == NULL)
 				break;
@@ -189,7 +193,10 @@ jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
 			token->start = parser->pos;
 			parser->toksuper = parser->toknext - 1;
 			break;
-		case '}': case ']':
+		case '}':
+			if (--num <= 0)
+				out = 1;
+		case ']':
 			if (tokens == NULL)
 				break;
 			type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
@@ -221,7 +228,7 @@ jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
 
 					parser->toksuper = -1;
 					token->end = parser->pos + 1;
-						break;
+					break;
 				}
 			}
 			/* Error if unmatched closing bracket */

src/parse.c

@@ -645,12 +645,22 @@ int hyper_parse_write_file(struct hyper_writter *writter, char *json, int length
 
 	jsmn_init(&p);
 	n = jsmn_parse(&p, json, length,  toks, toks_num);
-	if (n < 0) {
+	/* Must be json first */
+	if (n <= 0) {
 		fprintf(stdout, "jsmn parse failed, n is %d\n", n);
 		ret = -1;
 		goto out;
 	}
 
+	writter->len = length - toks[0].end;
+	writter->data = malloc(writter->len);
+
+	if (writter->data == NULL)
+		goto fail;
+
+	memcpy(writter->data, json + toks[0].end, writter->len);
+	fprintf(stdout, "writefile get data len %d %s\n", writter->len, writter->data);
+
 	for (i = 0; i < n; i++) {
 		jsmntok_t *t = &toks[i];
 
@@ -669,24 +679,10 @@ int hyper_parse_write_file(struct hyper_writter *writter, char *json, int length
 
 			writter->file = strdup(json_token_str(json, &toks[i]));
 			fprintf(stdout, "writefile get file %s\n", writter->file);
-		} else if (json_token_streq(json, t, "data")) {
-			if (i++ == n)
-				goto fail;
-
-			writter->len = toks[i].end - toks[i].start + 1;
-			writter->data = malloc(writter->len);
-
-			if (writter->data == NULL)
-				goto fail;
-
-			memcpy(writter->data, json + toks[i].start, writter->len);
-			writter->data[writter->len - 1] = '\0';
-			fprintf(stdout, "writefile get data len %d %s\n", writter->len, writter->data);
 		} else {
 			fprintf(stdout, "in writefile incorrect %s\n", json_token_str(json, &toks[i]));
 		}
 	}
-
 out:
 	free(toks);
 	return ret;