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Diffstat (limited to 'sysdeps/mach/hurd/getcwd.c')
-rw-r--r--sysdeps/mach/hurd/getcwd.c59
1 files changed, 31 insertions, 28 deletions
diff --git a/sysdeps/mach/hurd/getcwd.c b/sysdeps/mach/hurd/getcwd.c
index 02699a7e84..ed8ed96697 100644
--- a/sysdeps/mach/hurd/getcwd.c
+++ b/sysdeps/mach/hurd/getcwd.c
@@ -39,11 +39,10 @@ char *
__getcwd (char *buf, size_t size)
{
error_t err;
- dev_t rootdev, thisdev;
+ mach_port_t rootid, thisid, rootdevid, thisdevid;
ino_t rootino, thisino;
char *file_name;
register char *file_namep;
- struct stat st;
file_t parent;
char *dirbuf = NULL;
unsigned int dirbufsize = 0;
@@ -51,6 +50,10 @@ __getcwd (char *buf, size_t size)
inline void cleanup (void)
{
__mach_port_deallocate (__mach_task_self (), parent);
+ __mach_port_deallocate (__mach_task_self (), thisid);
+ __mach_port_deallocate (__mach_task_self (), thisdevid);
+ __mach_port_deallocate (__mach_task_self (), rootid);
+ __mach_port_deallocate (__mach_task_self (), rootdevid);
if (dirbuf != NULL)
__vm_deallocate (__mach_task_self (),
@@ -81,37 +84,30 @@ __getcwd (char *buf, size_t size)
file_namep = file_name + size;
*--file_namep = '\0';
- /* Get a port to our root directory and stat it. */
+ /* Get a port to our root directory and get its identity. */
- if (err = __USEPORT (CRDIR, __io_stat (port, &st)))
+ if (err = __USEPORT (CRDIR, __io_identity (port,
+ &rootid, &rootdevid, &rootino)))
return __hurd_fail (err), NULL;
- rootdev = st.st_dev;
- rootino = st.st_ino;
+ __mach_port_deallocate (__mach_task_self (), rootdevid);
/* Get a port to our current working directory and stat it. */
- if (err = __USEPORT (CWDIR, __mach_port_mod_refs (__mach_task_self (),
- (parent = port),
- MACH_PORT_RIGHT_SEND,
- 1)))
- return __hurd_fail (err), NULL;
- if (err = __io_stat (parent, &st))
+ if (err = __USEPORT (CRDIR, __io_identity (port,
+ &thisid, &thisdevid, &thisino)))
{
- cleanup ();
+ __mach_port_deallocate (__mach_task_self (), rootid);
return __hurd_fail (err), NULL;
}
- thisdev = st.st_dev;
- thisino = st.st_ino;
-
- while (!(thisdev == rootdev && thisino == rootino))
+ while (thisid != rootid)
{
/* PARENT is a port to the directory we are currently on;
- THISDEV and THISINO are its device and node numbers.
- Look in its parent (..) for a file with the same numbers. */
+ THISID, THISDEV, and THISINO are its identity.
+ Look in its parent (..) for a file with the same file number. */
struct dirent *d;
- dev_t dotdev;
+ mach_port_t dotid, dotdevid;
ino_t dotino;
int mount_point;
file_t newp;
@@ -127,12 +123,12 @@ __getcwd (char *buf, size_t size)
__mach_port_deallocate (__mach_task_self (), parent);
parent = newp;
- /* Figure out if this directory is a mount point. */
- if (err = __io_stat (parent, &st))
+ /* Get this directory's identity and figure out if it's a mount point. */
+ if (err = __io_identity (parent, &dotid, &dotdevid, &dotino))
goto errlose;
- dotdev = st.st_dev;
- dotino = st.st_ino;
- mount_point = dotdev != thisdev;
+ __mach_port_deallocate (__mach_task_self (), dotid);
+ __mach_port_deallocate (__mach_task_self (), dotdevid);
+ mount_point = dotdevid != thisdevid;
/* Search for the last directory. */
direntry = 0;
@@ -178,13 +174,17 @@ __getcwd (char *buf, size_t size)
{
file_t try = __file_name_lookup_under (parent, d->d_name,
O_NOLINK, 0);
+ file_t id, devid;
+ ino_t fileno;
if (try == MACH_PORT_NULL)
goto lose;
- err = __io_stat (try, &st);
+ err = __io_identity (try, &id, &devid, &fileno);
__mach_port_deallocate (__mach_task_self (), try);
if (err)
goto errlose;
- if (st.st_dev == thisdev && st.st_ino == thisino)
+ __mach_port_deallocate (__mach_task_self (), id);
+ __mach_port_deallocate (__mach_task_self (), devid);
+ if (id == thisid)
goto found;
}
}
@@ -232,7 +232,10 @@ __getcwd (char *buf, size_t size)
/* The next iteration will find the name of the directory we
just searched through. */
- thisdev = dotdev;
+ __mach_port_deallocate (__mach_task_self (), thisid);
+ __mach_port_deallocate (__mach_task_self (), thisdevid);
+ thisid = dotid;
+ thisdevid = dotdevid;
thisino = dotino;
}