1 files changed, 23 insertions, 0 deletions
diff --git a/feedbuffer.c b/feedbuffer.c
new file mode 100644
index 0000000..59ecae0
--- /dev/null
+++ b/feedbuffer.c
@@ -0,0 +1,23 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int
+feedbuffer(int fd, struct buffer *buffer, const char *fname)
+{
+	ssize_t r;
+	if (buffer->length == buffer->size)
+		buffer->buf = erealloc(buffer->buf, buffer->size += 8096);
+again:
+	r = read(fd, &buffer->buf[buffer->length], buffer->size - buffer->length);
+	if (r <= 0) {
+		if (!r)
+			return 1;
+		if (errno == EINTR)
+			goto again;
+		weprintf("%s:", fname);
+		return -1;
+	}
+	buffer->length += (size_t)r;
+	return 0;
+}