update buffer functions

Author: bbSnavy

src/buffer.c

@@ -32,18 +32,18 @@ t_ion_buffer *ion_buffer_clone(t_ion_buffer *self) {
   return (other);
 }
 
-t_ion_result_code ion_buffer_seek_read(t_ion_buffer *self, uint8_t curr) {
+t_ion_result_code ion_buffer_seek_read(t_ion_buffer *self, size_t curr) {
   if (self == NULL)
     return RESULT_ERROR;
 
-  return vector_seek_read(self->body, (size_t)curr);
+  return vector_seek_read(self->body, curr);
 }
 
-t_ion_result_code ion_buffer_seek_write(t_ion_buffer *self, uint8_t curr) {
+t_ion_result_code ion_buffer_seek_write(t_ion_buffer *self, size_t curr) {
   if (self == NULL)
     return RESULT_ERROR;
 
-  return vector_seek_write(self->body, (size_t)curr);
+  return vector_seek_write(self->body, curr);
 }
 
 t_ion_result_code ion_buffer_write(t_ion_buffer *self, void *src, size_t len) {
@@ -60,6 +60,13 @@ t_ion_result_code ion_buffer_read(t_ion_buffer *self, void *dst, size_t len) {
   return vector_read(self->body, dst, len);
 }
 
+t_ion_result_code ion_buffer_peek(t_ion_buffer *self, void *dst, size_t len) {
+  if (self == NULL)
+    return RESULT_ERROR;
+
+  return vector_peek(self->body, dst, len);
+}
+
 t_ion_result_code ion_buffer_reduce(t_ion_buffer *self) {
   t_ion_result_code result;
 

src/ion.h

@@ -85,10 +85,11 @@ void vector_display(t_ion_vector *self);
 t_ion_buffer *ion_buffer_new();
 void ion_buffer_free(t_ion_buffer *self);
 t_ion_buffer *ion_buffer_clone(t_ion_buffer *self);
-t_ion_result_code ion_buffer_seek_read(t_ion_buffer *self, uint8_t curr);
-t_ion_result_code ion_buffer_seek_write(t_ion_buffer *self, uint8_t curr);
+t_ion_result_code ion_buffer_seek_read(t_ion_buffer *self, size_t curr);
+t_ion_result_code ion_buffer_seek_write(t_ion_buffer *self, size_t curr);
 t_ion_result_code ion_buffer_write(t_ion_buffer *self, void *src, size_t len);
 t_ion_result_code ion_buffer_read(t_ion_buffer *self, void *dst, size_t len);
+t_ion_result_code ion_buffer_peek(t_ion_buffer *self, void *dst, size_t len);
 t_ion_result_code ion_buffer_reduce(t_ion_buffer *self);
 uint8_t *ion_buffer_consume(t_ion_buffer *self, size_t *len);