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[14/15] qga: distinguish binary modes in "guest_file_open_modes" map

Message ID 1368568392-2127-15-git-send-email-mdroth@linux.vnet.ibm.com
State New
Headers show

Commit Message

Michael Roth May 14, 2013, 9:53 p.m. UTC 
From: Laszlo Ersek <lersek@redhat.com>

In Windows guests this may make a difference.

Since the original patch (commit c689b4f1) sought to be pedantic and to
consider theoretical corner cases of portability, we should fix it up
where it failed to come through in that pursuit.

Suggested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
(cherry picked from commit 8fe6bbca7176c9dfb35083a71bda95c1856e2ed5)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 qga/commands-posix.c |   22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)
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Patch

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 08f3473..933c700 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -164,17 +164,27 @@  static GuestFileHandle *guest_file_handle_find(int64_t id, Error **err)
 
 typedef const char * const ccpc;
 
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
 /* http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html */
 static const struct {
     ccpc *forms;
     int oflag_base;
 } guest_file_open_modes[] = {
-    { (ccpc[]){ "r",  "rb",         NULL }, O_RDONLY                      },
-    { (ccpc[]){ "w",  "wb",         NULL }, O_WRONLY | O_CREAT | O_TRUNC  },
-    { (ccpc[]){ "a",  "ab",         NULL }, O_WRONLY | O_CREAT | O_APPEND },
-    { (ccpc[]){ "r+", "rb+", "r+b", NULL }, O_RDWR                        },
-    { (ccpc[]){ "w+", "wb+", "w+b", NULL }, O_RDWR   | O_CREAT | O_TRUNC  },
-    { (ccpc[]){ "a+", "ab+", "a+b", NULL }, O_RDWR   | O_CREAT | O_APPEND }
+    { (ccpc[]){ "r",          NULL }, O_RDONLY                                 },
+    { (ccpc[]){ "rb",         NULL }, O_RDONLY                      | O_BINARY },
+    { (ccpc[]){ "w",          NULL }, O_WRONLY | O_CREAT | O_TRUNC             },
+    { (ccpc[]){ "wb",         NULL }, O_WRONLY | O_CREAT | O_TRUNC  | O_BINARY },
+    { (ccpc[]){ "a",          NULL }, O_WRONLY | O_CREAT | O_APPEND            },
+    { (ccpc[]){ "ab",         NULL }, O_WRONLY | O_CREAT | O_APPEND | O_BINARY },
+    { (ccpc[]){ "r+",         NULL }, O_RDWR                                   },
+    { (ccpc[]){ "rb+", "r+b", NULL }, O_RDWR                        | O_BINARY },
+    { (ccpc[]){ "w+",         NULL }, O_RDWR   | O_CREAT | O_TRUNC             },
+    { (ccpc[]){ "wb+", "w+b", NULL }, O_RDWR   | O_CREAT | O_TRUNC  | O_BINARY },
+    { (ccpc[]){ "a+",         NULL }, O_RDWR   | O_CREAT | O_APPEND            },
+    { (ccpc[]){ "ab+", "a+b", NULL }, O_RDWR   | O_CREAT | O_APPEND | O_BINARY }
 };
 
 static int