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Ticket #1729: extfs: fail copying into arhive

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Test case:
 * create any zip-archive (or take exists)
 * run mc
 * enter into archive
 * try to copy any files inside archive.

Fix issue: Try to open temporarry file twice: with O_CREATE flag; and without O_CREATE and with O_TRUNC flag
Also, created extfs_chown() function for avoid chown-related warnings.

Signed-off-by: Slava Zanko <slavazanko@gmail.com>
This commit is contained in:
Slava Zanko 2009-10-20 13:04:30 +03:00
parent a1a2164170
commit f589410ced
1 changed files with 17 additions and 0 deletions
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17
vfs/extfs.c
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@ -720,6 +720,13 @@ extfs_open (struct vfs_class *me, const char *file, int flags, int mode)
local_handle =
open (entry->inode->local_filename, NO_LINEAR (flags), mode);
if (local_handle == -1) {
/* file exists(may be). Need to drop O_CREAT flag and truncate file content */
flags = ~O_CREAT & (NO_LINEAR (flags)|O_TRUNC);
local_handle = open (entry->inode->local_filename, flags , mode);
}
if (local_handle == -1)
ERRNOR (EIO, NULL);
@ -1019,6 +1026,15 @@ cleanup:
return result;
}
static int extfs_chown (struct vfs_class *me, const char *path, int owner, int group)
{
(void) me;
(void) path;
(void) owner;
(void) group;
return 0;
}
static int extfs_chmod (struct vfs_class *me, const char *path, int mode)
{
(void) me;
@ -1414,6 +1430,7 @@ init_extfs (void)
vfs_extfs_ops.lstat = extfs_lstat;
vfs_extfs_ops.fstat = extfs_fstat;
vfs_extfs_ops.chmod = extfs_chmod;
vfs_extfs_ops.chown = extfs_chown;
vfs_extfs_ops.readlink = extfs_readlink;
vfs_extfs_ops.unlink = extfs_unlink;
vfs_extfs_ops.chdir = extfs_chdir;