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newlib-cygwin
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* syscalls.cc (fhandler_base::stat_fixup): Generate unique inode number 

for /dev/tty under all circumstances.  Add to comment.
This commit is contained in:
Corinna Vinschen 2015-02-10 20:41:16 +00:00
parent 22d65acb9c
commit d260e92859
2 changed files with 19 additions and 3 deletions
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5
winsup/cygwin/ChangeLog
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@ -1,3 +1,8 @@
2015-02-10 Corinna Vinschen <corinna@vinschen.de>
* syscalls.cc (fhandler_base::stat_fixup): Generate unique inode number
for /dev/tty under all circumstances. Add to comment.
2015-02-06 Corinna Vinschen <corinna@vinschen.de> 2015-02-06 Corinna Vinschen <corinna@vinschen.de>
* common.din: Export cabsl, cimagl, creall, finitel, hypotl, sqrtl. * common.din: Export cabsl, cimagl, creall, finitel, hypotl, sqrtl.

17
winsup/cygwin/syscalls.cc
View File

@ -1720,10 +1720,21 @@ void
fhandler_base::stat_fixup (struct stat *buf) fhandler_base::stat_fixup (struct stat *buf)
{ {
/* For devices, set inode number to device number. This gives us a valid, /* For devices, set inode number to device number. This gives us a valid,
unique inode number without having to call hash_path_name. */ unique inode number without having to call hash_path_name. /dev/tty needs
a bit of persuasion to get the same st_ino value in stat and fstat. */
if (!buf->st_ino) if (!buf->st_ino)
buf->st_ino = (get_major () == DEV_VIRTFS_MAJOR) ? get_ino () {
: get_device (); if (get_major () == DEV_VIRTFS_MAJOR)
buf->st_ino = get_ino ();
else if (dev () == FH_TTY ||
((get_major () == DEV_PTYS_MAJOR
|| get_major () == DEV_CONS_MAJOR)
&& !strcmp (get_name (), "/dev/tty")))
buf->st_ino = FH_TTY;
else
buf->st_ino = get_device ();
}
/* For /dev-based devices, st_dev must be set to the device number of /dev, /* For /dev-based devices, st_dev must be set to the device number of /dev,
not it's own device major/minor numbers. What we do here to speed up not it's own device major/minor numbers. What we do here to speed up
the process is to fetch the device number of /dev only once, liberally the process is to fetch the device number of /dev only once, liberally