2 files changed, 20 insertions, 7 deletions
diff --git a/src/buffer.c b/src/buffer.c
index 2fbfe72..dde1d90 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -12,15 +12,28 @@ bool init_growable_buffer(growable_buffer *buffer) {
     return true;
 }
 
-bool grow_growable_buffer(growable_buffer *buffer, size_t at_least) {
+char* grow_growable_buffer(growable_buffer *buffer, size_t at_least) {
     size_t new_size = ((at_least % GROW_SIZE) + 1 ) * GROW_SIZE;
     if (new_size < buffer->size){
         buffer->content = realloc(buffer->content, new_size);
-        if (!buffer->content){
-            return false;
-        }
         buffer->size = new_size;
-        return true;
+    }
+    return buffer->content;
+}
+
+void append_growable_buffer(growable_buffer *buffer, char* content,
+        size_t length) {
+    size_t i;
+    char *buf;
+
+    if (buffer->size <= buffer->used + length) {
+        buf = grow_growable_buffer(buffer, length);
+    } else {
+        buf = buffer->content;
+    }
+
+    for (i=0; i<length; i++){
+        buf[buffer->used + i] = content[i];
     }
 }
 
diff --git a/src/buffer.h b/src/buffer.h
index 35f2bdf..67e1bf7 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -1,6 +1,5 @@
 #ifndef BUFFER_H
 #define BUFFER_H
-#include <stdbool.h>
 #include <stddef.h>
 
 #define GROW_SIZE 10
@@ -12,7 +11,8 @@ typedef struct {
 } growable_buffer;
 
 bool init_growable_buffer(growable_buffer *buffer);
-bool grow_growable_buffer(growable_buffer *buffer, size_t at_least);
+char *grow_growable_buffer(growable_buffer *buffer, size_t at_least);
+void append_growable_buffer(growable_buffer *buffer, char* content, size_t length);
 void free_growable_buffer(growable_buffer *buffer);