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| author | Ruediger Meier | 2014-05-22 09:19:08 +0200 |
|---|---|---|
| committer | Ruediger Meier | 2014-05-22 09:41:24 +0200 |
| commit | 34c265f01c8b189e7de4e73fb7ecb0e63a004c51 (patch) | |
| tree | ff0987e52d013187f14e91568883eda290b28f6b | |
| parent | build-sys: cleanup bash-completion/ (diff) | |
| download | kernel-qcow2-util-linux-34c265f01c8b189e7de4e73fb7ecb0e63a004c51.tar.gz kernel-qcow2-util-linux-34c265f01c8b189e7de4e73fb7ecb0e63a004c51.tar.xz kernel-qcow2-util-linux-34c265f01c8b189e7de4e73fb7ecb0e63a004c51.zip | |
setarch: flush output streams before exec
This fixes the following (non-deterministic) discrepancy:
$ setarch x86_64 -RFZLvXBIST3 --uname-2.6 echo success
Switching on READ_IMPLIES_EXEC.
Switching on ADDR_LIMIT_32BIT.
Switching on SHORT_INODE.
Switching on WHOLE_SECONDS.
Switching on STICKY_TIMEOUTS.
Switching on ADDR_LIMIT_3GB.
Switching on UNAME26.
success
$ setarch x86_64 -RFZLvXBIST3 --uname-2.6 echo success &> /tmp/bla; cat /tmp/bla
success
Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>
| -rw-r--r-- | sys-utils/setarch.c | 3 | ||||
| -rw-r--r-- | tests/expected/misc/setarch | 11 |
2 files changed, 14 insertions, 0 deletions
diff --git a/sys-utils/setarch.c b/sys-utils/setarch.c index 957bb2b03..f957c7975 100644 --- a/sys-utils/setarch.c +++ b/sys-utils/setarch.c @@ -356,6 +356,9 @@ int main(int argc, char *argv[]) if (set_arch(p, options, 0)) err(EXIT_FAILURE, _("Failed to set personality to %s"), p); + /* flush all output streams before exec */ + fflush(NULL); + if (!argc) { execl("/bin/sh", "-sh", NULL); err(EXIT_FAILURE, _("failed to execute %s"), "/bin/sh"); diff --git a/tests/expected/misc/setarch b/tests/expected/misc/setarch index 2e9ba477f..54208acf6 100644 --- a/tests/expected/misc/setarch +++ b/tests/expected/misc/setarch @@ -1 +1,12 @@ +Switching on ADDR_NO_RANDOMIZE. +Switching on FDPIC_FUNCPTRS. +Switching on MMAP_PAGE_ZERO. +Switching on ADDR_COMPAT_LAYOUT. +Switching on READ_IMPLIES_EXEC. +Switching on ADDR_LIMIT_32BIT. +Switching on SHORT_INODE. +Switching on WHOLE_SECONDS. +Switching on STICKY_TIMEOUTS. +Switching on ADDR_LIMIT_3GB. +Switching on UNAME26. success |