1 files changed, 21 insertions, 0 deletions
diff --git a/writeall.c b/writeall.c
new file mode 100644
index 0000000..2e3d1ad
--- /dev/null
+++ b/writeall.c
@@ -0,0 +1,21 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+void
+writeall(int fd, const void *data, size_t n, const char *fname)
+{
+	const char *text = data;
+	ssize_t r;
+
+	while (n) {
+		r = write(fd, text, n);
+		if (r < 0) {
+			if (errno == EINTR)
+				continue;
+			eprintf("write %s:", fname);
+		}
+		n -= (size_t)r;
+		text = &text[r];
+	}
+}