simplified

cfile.c

@@ -43,26 +43,31 @@ int main(int argc, char* argv[]) {
   int includes_n = argc - 2;
   int lines_n = 4 + includes_n;
 
-  fifo* lines_head = (fifo*) malloc(sizeof(fifo));
-  lines_head->string = "";
-  lines_head->next = NULL;
+  char* lines[BUF_SIZE];
 
+  int lines_i = 0;
   if (argc > 2) {
     for (int i = 2; i < argc; i++) {
-      char line[BUF_SIZE] = "#include <";
+      char* line = (char*) malloc(BUF_SIZE);
+      strcpy(line, "#include <");
       strcat(line, argv[i]);
       strcat(line, ".h>\n");
-      fifo_append(lines_head, line);
+
+      lines[lines_i] = line;
+
+      lines_i++;
+      
     }
-    fifo_append(lines_head, "\n");
+    lines[lines_i] = "\n";
   }
 
-  fifo_append(lines_head, "int main() {\n\n");
-  fifo_append(lines_head, "  return 0;\n");
-  fifo_append(lines_head, "}");
+  lines[++lines_i] = "int main() {\n\n";
+  lines[++lines_i] = "  return 0;\n";
+  lines[++lines_i] = "}";
+  
 
   for (int i = 0; i < lines_n; i++) {
-    write(fd, fifo_read(&lines_head), strlen(lines_head->string));
+    write(fd, lines[i], strlen(lines[i]));
   }
 
   close(fd);
@@ -75,31 +80,3 @@ int main(int argc, char* argv[]) {
 
   return 0;
 }
-
-void fifo_append(fifo* head, char* string) {
-  fifo* last = head;
-
-  char* new_string = (char*) malloc(sizeof(char) * strlen(string));
-  strcpy(new_string, string);
-
-  while (last->next != NULL)
-    last = last->next;
-
-  fifo* new_node = (fifo*) malloc(sizeof(fifo));
-  new_node->string = new_string;
-  new_node->next = NULL;
-
-  last->next = new_node;
-}
-
-char* fifo_read(fifo** head) {
-  char* return_value = (*head)->string;
-
-  fifo* prev_head = *head;
-
-  *head = (*head)->next;
-
-  free(prev_head);
-
-  return return_value;
-}