[LTP] [PATCH v4 00/12] Fix tests failing with setsid

[Andrea Cervesato]

Following tests are failing when running on a new session started with
setsid command/syscall: pty01, ptem01, setpgid01.

Tihs patch-set refactor them in order to fix this issue. Some tests like
pty01 and ptem01 have been split into multiple files due to their
complexity.

Fixes: https://github.com/linux-test-project/kirk/issues/28
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
Changes in v4:
- TST_EXP_EQ_STRN: copy input strings inside a buffer in order to handle
  end of the string
- Link to v3: https://lore.kernel.org/r/20250109-fix_setsid_tests-v3-0-2ce60c904019@suse.com

Changes in v3:
- move slave/master opening in common.h
- check if master device exists inside open_master()
- check if slave device has right permissions inside open_slave()
- add TST_EXP_EQ_STRN macro
- fix SAFE_PTSNAME macro
- move master handling inside setup/cleanup in most of the test
- Link to v2: https://lore.kernel.org/r/20250106-fix_setsid_tests-v2-0-c43f57a2bab6@suse.com

Changes in v2:
- add SAFE_PTSNAME macro
- ptem01: check ptsname() with TBROK
- Link to v1: https://lore.kernel.org/r/20241211-fix_setsid_tests-v1-0-e103f36c6462@suse.com

---
Andrea Cervesato (12):
      Refactor setpgid01 test
      Add SAFE_PTSNAME macro
      Refactor ptem01 test
      Add ptem02 test
      Add ptem03 test
      Add ptem04 test
      Add ptem05 test
      Add ptem06 test
      Add TST_EXP_EQ_STRN macro
      Refactor pty01 test
      Add pty08 test
      Add pty09 test

 include/tst_safe_macros.h                     |   4 +
 include/tst_test_macros.h                     |  31 ++
 lib/tst_safe_macros.c                         |  14 +
 runtest/pty                                   |   7 +
 testcases/kernel/pty/.gitignore               |   7 +
 testcases/kernel/pty/common.h                 |  68 ++++
 testcases/kernel/pty/ptem01.c                 | 456 +++-----------------------
 testcases/kernel/pty/ptem02.c                 |  71 ++++
 testcases/kernel/pty/ptem03.c                 |  49 +++
 testcases/kernel/pty/ptem04.c                 |  49 +++
 testcases/kernel/pty/ptem05.c                 |  55 ++++
 testcases/kernel/pty/ptem06.c                 |  52 +++
 testcases/kernel/pty/pty01.c                  | 409 +++--------------------
 testcases/kernel/pty/pty08.c                  |  38 +++
 testcases/kernel/pty/pty09.c                  |  74 +++++
 testcases/kernel/syscalls/setpgid/setpgid01.c | 152 ++-------
 16 files changed, 620 insertions(+), 916 deletions(-)
---
base-commit: 578ba63ab115cfbc2374c6b7a4d1fae5fffd18ee
change-id: 20241204-fix_setsid_tests-876a46267285

Best regards,
-- 
Andrea Cervesato <andrea.cervesato@suse.com>