Patchwork [12/13] vmdk: Allow space in file name

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Submitter Stefan Hajnoczi
Date Feb. 1, 2013, 2:28 p.m.
Message ID <1359728884-19422-13-git-send-email-stefanha@redhat.com>
Download mbox | patch
Permalink /patch/217485/
State New
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Comments

Stefan Hajnoczi - Feb. 1, 2013, 2:28 p.m.
From: Philipp Hahn <hahn@univention.de>

The previous scanf() format string stopped parsing the file name on the
first white white space, which seems to be allowed at least by VMware
Workstation.

Change the format string to collect everything between the first and
second quote as the file name, disallowing line breaks.

Signed-off-by: Philipp Hahn <hahn@univention.de>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 block/vmdk.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

Patch

diff --git a/block/vmdk.c b/block/vmdk.c
index a8cb5c9..aef1abc 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -641,7 +641,7 @@  static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
          * RW [size in sectors] SPARSE "file-name.vmdk"
          */
         flat_offset = -1;
-        ret = sscanf(p, "%10s %" SCNd64 " %10s %511s %" SCNd64,
+        ret = sscanf(p, "%10s %" SCNd64 " %10s \"%511[^\n\r\"]\" %" SCNd64,
                 access, &sectors, type, fname, &flat_offset);
         if (ret < 4 || strcmp(access, "RW")) {
             goto next_line;
@@ -653,14 +653,6 @@  static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
             return -EINVAL;
         }
 
-        /* trim the quotation marks around */
-        if (fname[0] == '"') {
-            memmove(fname, fname + 1, strlen(fname));
-            if (strlen(fname) <= 1 || fname[strlen(fname) - 1] != '"') {
-                return -EINVAL;
-            }
-            fname[strlen(fname) - 1] = '\0';
-        }
         if (sectors <= 0 ||
             (strcmp(type, "FLAT") && strcmp(type, "SPARSE")) ||
             (strcmp(access, "RW"))) {