1 files changed, 49 insertions, 0 deletions
diff --git a/src/fileops.c b/src/fileops.c
new file mode 100644
index 000000000..1ca0fbb08
--- /dev/null
+++ b/src/fileops.c
@@ -0,0 +1,49 @@
+#include "fileops.h"
+
+int gitfo_read(git_file fd, void *buf, size_t cnt)
+{
+	char *b = buf;
+	while (cnt) {
+		ssize_t r = read(fd, b, cnt);
+		if (r < 0) {
+			if (errno == EINTR || errno == EAGAIN)
+				continue;
+			return -1;
+		}
+		if (!r) {
+			errno = EPIPE;
+			return -1;
+		}
+		cnt -= r;
+		b += r;
+	}
+	return GIT_SUCCESS;
+}
+
+int gitfo_write(git_file fd, void *buf, size_t cnt)
+{
+	char *b = buf;
+	while (cnt) {
+		ssize_t r = write(fd, b, cnt);
+		if (r < 0) {
+			if (errno == EINTR || errno == EAGAIN)
+				continue;
+			return -1;
+		}
+		if (!r) {
+			errno = EPIPE;
+			return -1;
+		}
+		cnt -= r;
+		b += r;
+	}
+	return GIT_SUCCESS;
+}
+
+off_t gitfo_size(git_file fd)
+{
+	gitfo_statbuf sb;
+	if (fstat(fd, &sb))
+		return -1;
+	return sb.st_size;
+}