From: Rich Felker <dalias@aerifal.cx>
Date: Fri, 30 May 2014 05:12:42 +0000 (-0400)
Subject: fix sendfile syscall to use 64-bit off_t
X-Git-Tag: v1.1.2~40
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=55f45bc7222ec50b72aa8411c61e30184d0ade23;p=oweals%2Fmusl.git

fix sendfile syscall to use 64-bit off_t

somehow the remapping of this syscall to the 64-bit version was
overlooked. the issue was found, and patch provided, by Stefan
Kristiansson. presumably the reason this bug was not caught earlier is
that the syscall takes a pointer to off_t rather than a value, so on
little-endian systems, everything appears to work as long as the
offset value fits in the low 31 bits. on big-endian systems, though,
sendfile was presumably completely non-functional.
---

diff --git a/src/internal/syscall.h b/src/internal/syscall.h
index 08a85784..3f4490e1 100644
--- a/src/internal/syscall.h
+++ b/src/internal/syscall.h
@@ -163,6 +163,11 @@ long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...),
 #define SYS_fadvise SYS_fadvise64_64
 #endif
 
+#ifdef SYS_sendfile64
+#undef SYS_sendfile
+#define SYS_sendfile SYS_sendfile64
+#endif
+
 /* socketcall calls */
 
 #define __SC_socket      1