1 files changed, 48 insertions, 0 deletions
diff --git a/src/copy.c b/src/copy.c
new file mode 100644
index 0000000..f63d4f2
--- /dev/null
+++ b/src/copy.c
@@ -0,0 +1,48 @@
+#define _GNU_SOURCE
+
+#include <copy.h>
+#include <fcntl.h>
+#include <filehandler.h>
+#include <ftw.h>
+#include <string.h>
+#include <sys/sendfile.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "../config.h"
+
+int
+copy_recursively(const char *fpath,
+                 const struct stat *sb,
+                 int typeflag,
+                 struct FTW *ftwbuf)
+{
+  (void) sb;
+  (void) ftwbuf;
+
+  const char *path = fpath + strlen(DIRECTORY) + 1;
+  char *output_path = NULL;
+  asprintf(&output_path, "%s/%s", OUTPUT, path);
+
+  if (typeflag == FTW_D) {
+    mkdir(output_path, 0700);
+    return FTW_CONTINUE;
+  }
+
+  if (typeflag != FTW_F)
+    return FTW_CONTINUE;
+
+  FILE *in = fopen(fpath, "r");
+  size_t size = fsize(in);
+  fclose(in);
+
+  int in_fd = open(fpath, O_RDONLY);
+  int out_fd = open(output_path, O_WRONLY | O_CREAT, 0700);
+
+  sendfile(out_fd, in_fd, 0, size);
+
+  close(in_fd);
+  close(out_fd);
+
+  return FTW_CONTINUE;
+}