- (tim) [configure.ac] Bug #1149. Changes in QNX section only. Patch by

[openssh.git] / atomicio.c

diff --git a/atomicio.c b/atomicio.c
index 7d848cbfb2c25525777685a0511f64dc0bb76f87..12abbda16bb157448caeac5ed734d06eaf9b54f9 100644 (file)
--- a/atomicio.c
+++ b/atomicio.c
@@ -1,5 +1,6 @@
 /*
- * Copyright (c) 1999 Theo de Raadt
+ * Copyright (c) 2005 Anil Madhavapeddy. All rights reserved.
+ * Copyright (c) 1995,1999 Theo de Raadt.  All rights reserved.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -23,35 +24,41 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-
 #include "includes.h"
-RCSID("$Id$");
+RCSID("$OpenBSD: atomicio.c,v 1.13 2005/05/24 17:32:43 avsm Exp $");
 
-#include "xmalloc.h"
-#include "ssh.h"
+#include "atomicio.h"
 
 /*
- * ensure all of data on socket comes through. f==read || f==write
+ * ensure all of data on socket comes through. f==read || f==vwrite
  */
-int
-atomicio(f, fd, s, n)
-       int (*f) ();
+size_t
+atomicio(f, fd, _s, n)
+       ssize_t (*f) (int, void *, size_t);
        int fd;
-       void *s;
+       void *_s;
        size_t n;
 {
-       int res, pos = 0;
+       char *s = _s;
+       size_t pos = 0;
+       ssize_t res;
 
        while (n > pos) {
                res = (f) (fd, s + pos, n - pos);
                switch (res) {
                case -1:
+#ifdef EWOULDBLOCK
+                       if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)
+#else
                        if (errno == EINTR || errno == EAGAIN)
+#endif
                                continue;
+                       return 0;
                case 0:
-                       return (res);
+                       errno = EPIPE;
+                       return pos;
                default:
-                       pos += res;
+                       pos += (u_int)res;
                }
        }
        return (pos);