1 files changed, 25 insertions, 0 deletions
diff --git a/src/libstddjb/siovec_seek.c b/src/libstddjb/siovec_seek.c
new file mode 100644
index 0000000..34a8918
--- /dev/null
+++ b/src/libstddjb/siovec_seek.c
@@ -0,0 +1,25 @@
+/* ISC license. */
+
+#include <skalibs/bytestr.h>
+#include <skalibs/siovec.h>
+
+unsigned int siovec_seek (siovec_t *v, unsigned int n, unsigned int len)
+{
+  unsigned int w = 0 ;
+  register unsigned int i = 0 ;
+  for (; i < n ; i++)
+  {
+    if (len < v[i].len) break ;
+    w += v[i].len ;
+    len -= v[i].len ;
+    v[i].s = 0 ;
+    v[i].len = 0 ;
+  }
+  if (i < n)
+  {
+    v[i].s += len ;
+    v[i].len -= len ;
+    w += len ;
+  }
+  return w ;
+}