Breakup monolithic code

1 files changed, 37 insertions, 0 deletions

diff --git a/src/lib/lib.c b/src/lib/lib.c
new file mode 100644
index 0000000..b358ed6
--- /dev/null
+++ b/src/lib/lib.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+
+void die(const char *message) {
+  perror(message);
+  exit(1);
+}
+
+char *formatBytes(unsigned bytes, float *rounded) {
+  char *SIZES[] = {"bytes", "kB", "MB", "GB"};
+
+  unsigned size = bytes;
+  unsigned div = 0;
+  unsigned rem = 0;
+
+  while (size >= 1024 && div < (sizeof SIZES / sizeof *SIZES)) {
+    rem = (size % 1024);
+    div++;
+    size /= 1024;
+  }
+
+  *rounded = (float)size + (float)rem / 1024.0;
+
+  return SIZES[div];
+}
+
+int intlen(unsigned i) {
+  int l = 1;
+
+  while (i > 9) {
+    l++;
+    i /= 10;
+  }
+
+  return l;
+}