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author | Florian Weimer <fweimer@redhat.com> | 2024-04-19 14:38:17 +0200 |
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committer | Florian Weimer <fweimer@redhat.com> | 2024-05-02 13:20:27 +0200 |
commit | 9831f98c266a8d56d1bf729b709c08e40375540c (patch) | |
tree | cd3280721e49b69451b3e8b2fa245348cf768e93 /login | |
parent | fd658f026f25cf59e8db243bc3b3e09cd5a20ba0 (diff) | |
download | glibc-9831f98c266a8d56d1bf729b709c08e40375540c.tar.gz glibc-9831f98c266a8d56d1bf729b709c08e40375540c.tar.xz glibc-9831f98c266a8d56d1bf729b709c08e40375540c.zip |
login: Check default sizes of structs utmp, utmpx, lastlog
The default <utmp-size.h> is for ports with a 64-bit time_t. Ports with a 32-bit time_t or with __WORDSIZE_TIME64_COMPAT32=1 need to override it. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> (cherry picked from commit 4d4da5aab936504b2d3eca3146e109630d9093c4)
Diffstat (limited to 'login')
-rw-r--r-- | login/Makefile | 2 | ||||
-rw-r--r-- | login/tst-utmp-size.c | 33 |
2 files changed, 34 insertions, 1 deletions
diff --git a/login/Makefile b/login/Makefile index 1e22008a61..b26ac42bfc 100644 --- a/login/Makefile +++ b/login/Makefile @@ -44,7 +44,7 @@ subdir-dirs = programs vpath %.c programs tests := tst-utmp tst-utmpx tst-grantpt tst-ptsname tst-getlogin tst-updwtmpx \ - tst-pututxline-lockfail tst-pututxline-cache + tst-pututxline-lockfail tst-pututxline-cache tst-utmp-size # Empty compatibility library for old binaries. extra-libs := libutil diff --git a/login/tst-utmp-size.c b/login/tst-utmp-size.c new file mode 100644 index 0000000000..1b7f7ff042 --- /dev/null +++ b/login/tst-utmp-size.c @@ -0,0 +1,33 @@ +/* Check expected sizes of struct utmp, struct utmpx, struct lastlog. + Copyright (C) 2024 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <utmp.h> +#include <utmpx.h> +#include <utmp-size.h> + +static int +do_test (void) +{ + _Static_assert (sizeof (struct utmp) == UTMP_SIZE, "struct utmp size"); + _Static_assert (sizeof (struct utmpx) == UTMP_SIZE, "struct utmpx size"); + _Static_assert (sizeof (struct lastlog) == LASTLOG_SIZE, + "struct lastlog size"); + return 0; +} + +#include <support/test-driver.c> |