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-rw-r--r--src/stdio/fputc.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/stdio/fputc.c b/src/stdio/fputc.c
new file mode 100644
index 00000000..ec859385
--- /dev/null
+++ b/src/stdio/fputc.c
@@ -0,0 +1,10 @@
+#include "stdio_impl.h"
+
+int fputc(int c, FILE *f)
+{
+ FLOCK(f);
+ if (c != f->lbf && f->wpos + 1 < f->wend) *f->wpos++ = c;
+ else c = __overflow(f, c);
+ FUNLOCK(f);
+ return c;
+}