implement a command to list runs

1 files changed, 53 insertions, 0 deletions

diff --git a/src/buf.c b/src/buf.c
new file mode 100644
index 0000000..90e33ad
--- /dev/null
+++ b/src/buf.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023 Egor Tensin <Egor.Tensin@gmail.com>
+ * This file is part of the "cimple" project.
+ * For details, see https://github.com/egor-tensin/cimple.
+ * Distributed under the MIT License.
+ */
+
+#include "buf.h"
+#include "log.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+struct buf {
+	uint32_t size;
+	const void *data;
+};
+
+int buf_create(struct buf **_buf, const void *data, uint32_t size)
+{
+	struct buf *buf = malloc(sizeof(struct buf));
+	if (!buf) {
+		log_errno("malloc");
+		return -1;
+	}
+
+	buf->data = data;
+	buf->size = size;
+
+	*_buf = buf;
+	return 0;
+}
+
+int buf_create_from_string(struct buf **buf, const char *str)
+{
+	return buf_create(buf, str, strlen(str) + 1);
+}
+
+void buf_destroy(struct buf *buf)
+{
+	free(buf);
+}
+
+uint32_t buf_get_size(const struct buf *buf)
+{
+	return buf->size;
+}
+
+const void *buf_get_data(const struct buf *buf)
+{
+	return buf->data;
+}