1 files changed, 48 insertions, 0 deletions
diff --git a/include/buffer.h b/include/buffer.h
new file mode 100644
index 0000000..b122da4
--- /dev/null
+++ b/include/buffer.h
@@ -0,0 +1,48 @@
+/*
+ * No copyright is claimed.  This code is in the public domain; do with
+ * it what you wish.
+ */
+#ifndef UTIL_LINUX_BUFFER
+#define UTIL_LINUX_BUFFER
+
+#include "c.h"
+
+struct ul_buffer {
+	char *begin;		/* begin of the data */
+	char *end;		/* current end of data */
+
+	size_t sz;		/* allocated space for data */
+	size_t chunksize;
+
+	char *encoded;		/* encoded data (from mbs_safe_encode_to_buffer)) */
+	size_t encoded_sz;	/* space allocated for encoded data */
+
+	char **ptrs;		/* saved pointers */
+	size_t nptrs;		/* number of saved pointers */
+};
+
+#define UL_INIT_BUFFER { .begin = NULL }
+
+void ul_buffer_reset_data(struct ul_buffer *buf);
+void ul_buffer_free_data(struct ul_buffer *buf);
+int ul_buffer_is_empty(struct ul_buffer *buf);
+void ul_buffer_set_chunksize(struct ul_buffer *buf, size_t sz);
+void ul_buffer_refer_string(struct ul_buffer *buf, char *str);
+int ul_buffer_alloc_data(struct ul_buffer *buf, size_t sz);
+int ul_buffer_append_data(struct ul_buffer *buf, const char *data, size_t sz);
+int ul_buffer_append_string(struct ul_buffer *buf, const char *str);
+int ul_buffer_append_ntimes(struct ul_buffer *buf, size_t n, const char *str);
+int ul_buffer_set_data(struct ul_buffer *buf, const char *data, size_t sz);
+
+char *ul_buffer_get_data(struct ul_buffer *buf,  size_t *sz, size_t *width);
+char *ul_buffer_get_safe_data(struct ul_buffer *buf, size_t *sz, size_t *width, const char *safechars);
+
+size_t ul_buffer_get_bufsiz(struct ul_buffer *buf);
+
+int ul_buffer_save_pointer(struct ul_buffer *buf, unsigned short ptr_idx);
+char *ul_buffer_get_pointer(struct ul_buffer *buf, unsigned short  ptr_idx);
+size_t ul_buffer_get_pointer_length(struct ul_buffer *buf, unsigned short ptr_idx);
+size_t ul_buffer_get_safe_pointer_width(struct ul_buffer *buf, unsigned short ptr_idx);
+
+
+#endif /* UTIL_LINUX_BUFFER */