1 files changed, 19 insertions, 0 deletions
diff --git a/utils/read_file_into.c b/utils/read_file_into.c
new file mode 100644
index 00000000..59569484
--- /dev/null
+++ b/utils/read_file_into.c
@@ -0,0 +1,19 @@
+/*
+ * Read an entire file into a BinarySink.
+ */
+
+#include <stdio.h>
+
+#include "defs.h"
+#include "misc.h"
+
+bool read_file_into(BinarySink *bs, FILE *fp)
+{
+    char buf[4096];
+    while (1) {
+        size_t retd = fread(buf, 1, sizeof(buf), fp);
+        if (retd == 0)
+            return !ferror(fp);
+        put_data(bs, buf, retd);
+    }
+}