1 files changed, 19 insertions, 0 deletions
diff --git a/src/base/io/putc.c b/src/base/io/putc.c
new file mode 100644
index 0000000..167f10f
--- /dev/null
+++ b/src/base/io/putc.c
@@ -0,0 +1,19 @@
+#include "internal.h"
+
+int
+io·putc(io·Header *io, int c)
+{
+    intptr i;
+
+    for(;;){
+        i = io->olen;
+        if(i){
+            io->e[i++] = c;
+            io->olen = i;
+            return 0;
+        }
+        if(io·flush(io) == io·BufEof)
+            break;
+    }
+    return io·BufEof;
+}