entities

1 files changed, 21 insertions, 0 deletions

diff --git a/utl/json2map/common.c b/utl/json2map/common.c
index c401fc1..8c2c4c2 100644
--- a/utl/json2map/common.c
+++ b/utl/json2map/common.c
@@ -1,7 +1,28 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include "common.h"
 
+struct blob blob_new(void) {
+	return (struct blob) {.data = NULL, .size = 0};
+}
+
+void blob_append(struct blob *const blob, void const *const data, size_t const size) {
+	char *new = realloc(blob->data, blob->size + size);
+	if (new == NULL) {
+		abort();
+	}
+	memcpy(new + blob->size, data, size);
+	blob->data = new;
+	blob->size += size;
+}
+
+void blob_free(struct blob *const blob) {
+	free(blob->data);
+	blob->data = NULL;
+	blob->size = 0;
+}
+
 struct blob load_file(char const *const name) {
 	const size_t START_SIZE = 8192;
 	FILE *file = fopen(name, "rb");