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If a .reg function is accessed through a symlink then write directly

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to the file rather than replacing it with a temp file.  This preserves
ownership and permissions.
This commit is contained in:
Bill Medland 2002-12-18 05:03:51 +00:00 committed by Alexandre Julliard
parent a16ed909c5
commit 309566d925
1 changed files with 7 additions and 5 deletions
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12
server/registry.c
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@ -1582,8 +1582,9 @@ static void register_branch_for_saving( struct key *key, const char *path, size_
/* save a registry branch to a file */
static int save_branch( struct key *key, const char *path )
{
struct stat st;
char *p, *real, *tmp = NULL;
int fd, count = 0, ret = 0;
int fd, count = 0, ret = 0, by_symlink;
FILE *f;
if (!(key->flags & KEY_DIRTY))
@ -1594,6 +1595,7 @@ static int save_branch( struct key *key, const char *path )
/* get the real path */
by_symlink = (!lstat(path, &st) && S_ISLNK (st.st_mode));
if (!(real = malloc( PATH_MAX ))) return 0;
if (!realpath( path, real ))
{
@ -1606,10 +1608,10 @@ static int save_branch( struct key *key, const char *path )
if ((fd = open( path, O_WRONLY )) != -1)
{
struct stat st;
/* if file is not a regular file or has multiple links,
write directly into it; otherwise use a temp file */
if (!fstat( fd, &st ) && (!S_ISREG(st.st_mode) || st.st_nlink > 1))
/* if file is not a regular file or has multiple links or is accessed
* via symbolic links, write directly into it; otherwise use a temp file */
if (by_symlink ||
(!fstat( fd, &st ) && (!S_ISREG(st.st_mode) || st.st_nlink > 1)))
{
ftruncate( fd, 0 );
goto save;