transport-helper: use xread instead of read

This fix was needed on HPE NonStop NSE and NSX where SSIZE_MAX is less than BUFFERSIZE resulting in EINVAL. The call to read in transport-helper.c was the only place outside of wrapper.c where it is used instead of xread. Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Randall S. Becker committed Jan 3, 2019 at 16:03 UTC c14e5a1a5018f4407390488dfea387e5dc81c817
1 file changed +1 -1
transport-helper.c
+1 -1
@@ -1225,7 +1225,7 @@ static int udt_do_read(struct unidirectional_transfer *t)
1225 return 0; /* No space for more. */
1226
1227 transfer_debug("%s is readable", t->src_name);
1228 - bytes = read(t->src, t->buf + t->bufuse, BUFFERSIZE - t->bufuse);
1228 + bytes = xread(t->src, t->buf + t->bufuse, BUFFERSIZE - t->bufuse);
1229 if (bytes < 0 && errno != EWOULDBLOCK && errno != EAGAIN &&
1230 errno != EINTR) {
1231 error_errno(_("read(%s) failed"), t->src_name);