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| author | Denys Vlasenko | 2016-04-02 18:06:24 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2016-04-02 18:06:24 +0200 |
| commit | 8220399173cf8d25e37059cadac96ac30f94e82a (patch) | |
| tree | ffe5ae4a783c8ddeceda15f57eae74ee69feebea /libbb/xfuncs_printf.c | |
| parent | c87e81f9440278dd46a3eddd1e0f4773afd46a95 (diff) | |
| download | busybox-8220399173cf8d25e37059cadac96ac30f94e82a.zip busybox-8220399173cf8d25e37059cadac96ac30f94e82a.tar.gz | |
nsenter,unshare: share common code; fix a bug of not closing all fds
function old new delta
xvfork_parent_waits_and_exits - 64 +64
exec_prog_or_SHELL - 39 +39
unshare_main 873 810 -63
nsenter_main 663 596 -67
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/2 up/down: 106/-130) Total: -27 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb/xfuncs_printf.c')
| -rw-r--r-- | libbb/xfuncs_printf.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libbb/xfuncs_printf.c b/libbb/xfuncs_printf.c index 4aa1b5c..e9222f6 100644 --- a/libbb/xfuncs_printf.c +++ b/libbb/xfuncs_printf.c @@ -659,3 +659,19 @@ pid_t FAST_FUNC xfork(void) return pid; } #endif + +void FAST_FUNC xvfork_parent_waits_and_exits(void) +{ + pid_t pid; + + fflush_all(); + pid = xvfork(); + if (pid > 0) { + /* Parent */ + int exit_status = wait_for_exitstatus(pid); + if (WIFSIGNALED(exit_status)) + kill_myself_with_sig(WTERMSIG(exit_status)); + _exit(WEXITSTATUS(exit_status)); + } + /* Child continues */ +} |