diff options
| author | Ron Yorston <rmy@pobox.com> | 2019-03-31 09:27:09 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-04-02 13:43:40 +0200 |
| commit | e48559eae3ba10e4b4f4c2ce726c31fd038a37ba (patch) | |
| tree | 6a4d404ff48ce5b0230d7ac54878601ce72afa7c /shell/ash.c | |
| parent | 8939359180ad0d6bfaaca694c4f14cd15cde4788 (diff) | |
| download | busybox-e48559eae3ba10e4b4f4c2ce726c31fd038a37ba.tar.gz | |
ash: distinguish 'wait -n' from other bashisms
Add a specific define to indicate which bash compatibility code
implements 'wait -n'.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/ash.c')
| -rw-r--r-- | shell/ash.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/shell/ash.c b/shell/ash.c index b1499b037..34d5d6d68 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -224,6 +224,7 @@ #define BASH_XTRACEFD ENABLE_ASH_BASH_COMPAT #define BASH_READ_D ENABLE_ASH_BASH_COMPAT #define IF_BASH_READ_D IF_ASH_BASH_COMPAT +#define BASH_WAIT_N ENABLE_ASH_BASH_COMPAT #if defined(__ANDROID_API__) && __ANDROID_API__ <= 24 /* Bionic at least up to version 24 has no glob() */ @@ -4235,7 +4236,7 @@ wait_block_or_sig(int *status) #define DOWAIT_NONBLOCK 0 #define DOWAIT_BLOCK 1 #define DOWAIT_BLOCK_OR_SIG 2 -#if ENABLE_ASH_BASH_COMPAT +#if BASH_WAIT_N # define DOWAIT_JOBSTATUS 0x10 /* OR this to get job's exitstatus instead of pid */ #endif @@ -4246,7 +4247,7 @@ dowait(int block, struct job *job) int status; struct job *jp; struct job *thisjob; -#if ENABLE_ASH_BASH_COMPAT +#if BASH_WAIT_N bool want_jobexitstatus = (block & DOWAIT_JOBSTATUS); block = (block & ~DOWAIT_JOBSTATUS); #endif @@ -4348,7 +4349,7 @@ dowait(int block, struct job *job) out: INT_ON; -#if ENABLE_ASH_BASH_COMPAT +#if BASH_WAIT_N if (want_jobexitstatus) { pid = -1; if (thisjob && thisjob->state == JOBDONE) @@ -4537,7 +4538,7 @@ waitcmd(int argc UNUSED_PARAM, char **argv) struct job *job; int retval; struct job *jp; -#if ENABLE_ASH_BASH_COMPAT +#if BASH_WAIT_N int status; char one = nextopt("n"); #else @@ -4550,7 +4551,7 @@ waitcmd(int argc UNUSED_PARAM, char **argv) /* wait for all jobs / one job if -n */ for (;;) { jp = curjob; -#if ENABLE_ASH_BASH_COMPAT +#if BASH_WAIT_N if (one && !jp) /* exitcode of "wait -n" with nothing to wait for is 127, not 0 */ retval = 127; @@ -4570,7 +4571,7 @@ waitcmd(int argc UNUSED_PARAM, char **argv) * with an exit status greater than 128, immediately after which * the trap is executed." */ -#if ENABLE_ASH_BASH_COMPAT +#if BASH_WAIT_N status = dowait(DOWAIT_BLOCK_OR_SIG | DOWAIT_JOBSTATUS, NULL); #else dowait(DOWAIT_BLOCK_OR_SIG, NULL); @@ -4581,7 +4582,7 @@ waitcmd(int argc UNUSED_PARAM, char **argv) */ if (pending_sig) goto sigout; -#if ENABLE_ASH_BASH_COMPAT +#if BASH_WAIT_N if (one) { /* wait -n waits for one _job_, not one _process_. * date; sleep 3 & sleep 2 | sleep 1 & wait -n; date |