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* syscalls.cc (rename): Allocate temporary path buffers using

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tmp_pathbuf.  Don't try to unset R/O attribute on dstpc if a
	removepc exists.  dstpc is a non-existant file in that case.
This commit is contained in:
Corinna Vinschen 2008-05-19 20:22:29 +00:00
parent a4e3764e51
commit 78ee2ae11f
2 changed files with 17 additions and 5 deletions
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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
2008-05-19 Corinna Vinschen <corinna@vinschen.de>
* syscalls.cc (rename): Allocate temporary path buffers using
tmp_pathbuf. Don't try to unset R/O attribute on dstpc if a
removepc exists. dstpc is a non-existant file in that case.
2008-05-17 Christopher Faylor <me+cygwin@cgf.cx>
* include/stdint.h: Use int rather than long for {u,}int32_t.

16
winsup/cygwin/syscalls.cc
View File

@ -1494,6 +1494,7 @@ stop_transaction (NTSTATUS status, HANDLE old_trans, HANDLE trans)
extern "C" int
rename (const char *oldpath, const char *newpath)
{
tmp_pathbuf tp;
int res = -1;
char *oldbuf, *newbuf;
path_conv oldpc, newpc, new2pc, *dstpc, *removepc = NULL;
@ -1533,7 +1534,7 @@ rename (const char *oldpath, const char *newpath)
olen = strlen (oldpath);
if (isdirsep (oldpath[olen - 1]))
{
stpcpy (oldbuf = (char *) alloca (olen + 1), oldpath);
stpcpy (oldbuf = tp.c_get (), oldpath);
while (olen > 0 && isdirsep (oldbuf[olen - 1]))
oldbuf[--olen] = '\0';
oldpath = oldbuf;
@ -1568,7 +1569,7 @@ rename (const char *oldpath, const char *newpath)
nlen = strlen (newpath);
if (isdirsep (newpath[nlen - 1]))
{
stpcpy (newbuf = (char *) alloca (nlen + 1), newpath);
stpcpy (newbuf = tp.c_get (), newpath);
while (nlen > 0 && isdirsep (newbuf[nlen - 1]))
newbuf[--nlen] = '\0';
newpath = newbuf;
@ -1746,8 +1747,10 @@ rename (const char *oldpath, const char *newpath)
}
}
/* You can't copy a file if the destination exists and has the R/O
attribute set. Remove the R/O attribute first. */
else if (dstpc->has_attribute (FILE_ATTRIBUTE_READONLY))
attribute set. Remove the R/O attribute first. But first check
if a removepc exists. If so, dstpc points to a non-existing file
due to a mangled suffix. */
else if (!removepc && dstpc->has_attribute (FILE_ATTRIBUTE_READONLY))
{
status = NtOpenFile (&nfh, FILE_WRITE_ATTRIBUTES,
dstpc->get_object_attr (attr, sec_none_nih),
@ -1814,7 +1817,10 @@ rename (const char *oldpath, const char *newpath)
}
size = sizeof (FILE_RENAME_INFORMATION)
+ dstpc->get_nt_native_path ()->Length;
pfri = (PFILE_RENAME_INFORMATION) alloca (size);
if (size > NT_MAX_PATH * sizeof (WCHAR)) /* Hopefully very seldom. */
pfri = (PFILE_RENAME_INFORMATION) alloca (size);
else
pfri = (PFILE_RENAME_INFORMATION) tp.w_get ();
pfri->ReplaceIfExists = TRUE;
pfri->RootDirectory = NULL;
pfri->FileNameLength = dstpc->get_nt_native_path ()->Length;