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| author | Florian Weimer <fweimer@redhat.com> | 2020-10-07 14:55:04 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2020-10-07 14:55:50 +0200 |
| commit | 27fe5f2e67a0e4cc0526b1b32b55f8e519075edb (patch) | |
| tree | ef5c44eece0ca4d809f072533d4a30d71d5aa09a /NEWS | |
| parent | 0f9793a556675d67d7c1897553f92e7152d1e598 (diff) | |
| download | glibc-27fe5f2e67a0e4cc0526b1b32b55f8e519075edb.tar.gz glibc-27fe5f2e67a0e4cc0526b1b32b55f8e519075edb.tar.xz glibc-27fe5f2e67a0e4cc0526b1b32b55f8e519075edb.zip | |
Linux: Require properly configured /dev/pts for PTYs
Current systems do not have BSD terminals, so the fallback code in posix_openpt/getpt does not do anything. Also remove the file system check for /dev/pts. Current systems always have a devpts file system mounted there if /dev/ptmx exists. grantpt is now essentially a no-op. It only verifies that the argument is a ptmx-descriptor. Therefore, this change indirectly addresses bug 24941. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/NEWS b/NEWS index ce05d05b16..9a2fe0b17a 100644 --- a/NEWS +++ b/NEWS @@ -35,7 +35,17 @@ Deprecated and removed features, and other changes affecting compatibility: Changes to build and runtime requirements: - [Add changes to build and runtime requirements here] +* On Linux, the system administrator needs to configure /dev/pts with + the intended access modes for pseudo-terminals. glibc no longer + attemps to adjust permissions of terminal devices. The previous glibc + defaults ("tty" group, user read/write and group write) already + corresponded to what most systems used, so that grantpt did not + perform any adjustments. + +* On Linux, the posix_openpt and getpt functions no longer attempt to + use legacy (BSD) pseudo-terminals and assume that if /dev/ptmx exists + (and pseudo-terminals are supported), a devpts file system is mounted + on /dev/pts. Current systems already meet these requirements. Security related changes: |