Re: [PATCH] xread(): Fix read error when filtering >= 2GB on Mac OS X

--- a/wrapper.c
+++ b/wrapper.c

@@ -139,6 +139,14 @@ ssize_t xread(int fd, void *buf, size_t len)
 {
 	ssize_t nr;
 	while (1) {
+#ifdef __APPLE__
+		const size_t twoGB = (1l << 31);
+		/* len >= 2GB immediately fails on Mac OS X with EINVAL when
+		 * reading from pipe. */
+		if (len >= twoGB) {
+			len = twoGB - 1;
+		}
+#endif
 		nr = read(fd, buf, len);