Add sys_writev

2 files changed, 15 insertions, 0 deletions

diff --git a/source3/include/proto.h b/source3/include/proto.h
index 5a3776b005..f1be1874bf 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -969,6 +969,7 @@ void *sys_memalign( size_t align, size_t size );
 int sys_usleep(long usecs);
 ssize_t sys_read(int fd, void *buf, size_t count);
 ssize_t sys_write(int fd, const void *buf, size_t count);
+ssize_t sys_writev(int fd, const struct iovec *iov, int iovcnt);
 ssize_t sys_pread(int fd, void *buf, size_t count, SMB_OFF_T off);
 ssize_t sys_pwrite(int fd, const void *buf, size_t count, SMB_OFF_T off);
 ssize_t sys_send(int s, const void *msg, size_t len, int flags);
diff --git a/source3/lib/system.c b/source3/lib/system.c
index 86c4ef2097..d52d12bf72 100644
--- a/source3/lib/system.c
+++ b/source3/lib/system.c
@@ -142,6 +142,20 @@ ssize_t sys_write(int fd, const void *buf, size_t count)
 }
 
 /*******************************************************************
+A writev wrapper that will deal with EINTR.
+********************************************************************/
+
+ssize_t sys_writev(int fd, const struct iovec *iov, int iovcnt)
+{
+	ssize_t ret;
+
+	do {
+		ret = writev(fd, iov, iovcnt);
+	} while (ret == -1 && errno == EINTR);
+	return ret;
+}
+
+/*******************************************************************
 A pread wrapper that will deal with EINTR and 64-bit file offsets.
 ********************************************************************/