1 files changed, 19 insertions, 0 deletions
diff --git a/src/libstddjb/allreadwrite.c b/src/libstddjb/allreadwrite.c
new file mode 100644
index 0000000..7e7867b
--- /dev/null
+++ b/src/libstddjb/allreadwrite.c
@@ -0,0 +1,19 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/allreadwrite.h>
+
+unsigned int allreadwrite (iofunc_t_ref op, int fd, register char *buf, register unsigned int len)
+{
+  register unsigned int written = 0 ;
+  while (len)
+  {
+    register int w = (*op)(fd, buf, len) ;
+    if (!w) errno = EPIPE ;
+    if (w <= 0) break ;
+    written += w ;
+    buf += w ;
+    len -= w ;
+  }
+  return written ;
+}