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| author | Michael Abbott <michael@araneidae.co.uk> | 2009-12-04 23:03:29 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2009-12-04 23:03:29 +0100 |
| commit | 359da5e3be3dfb15913c4e76d0b4a27b6400adc5 (patch) | |
| tree | 8eef0b4ffa53019e8300f7cf58bcf84621e2f074 /shell | |
| parent | 285ad155c4769e4a37a936826ba41e402f7d863b (diff) | |
| download | busybox-359da5e3be3dfb15913c4e76d0b4a27b6400adc5.tar.gz | |
ash: implement set -o pipefail (conditional on bash compat). +39 bytes
Signed-off-by: Michael Abbott <michael@araneidae.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/ash.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/shell/ash.c b/shell/ash.c index 65d41cc5b..e7cf7975f 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -101,6 +101,9 @@ static const char *const optletters_optnames[] = { "b" "notify", "u" "nounset", "\0" "vi", +#if ENABLE_ASH_BASH_COMPAT + "\0" "pipefail" +#endif #if DEBUG ,"\0" "nolog" ,"\0" "debug" @@ -178,9 +181,14 @@ struct globals_misc { #define bflag optlist[11] #define uflag optlist[12] #define viflag optlist[13] +#if ENABLE_ASH_BASH_COMPAT +# define pipefail optlist[14] +#else +# define pipefail 0 +#endif #if DEBUG -#define nolog optlist[14] -#define debug optlist[15] +# define nolog optlist[14 + ENABLE_ASH_BASH_COMPAT] +# define debug optlist[15 + ENABLE_ASH_BASH_COMPAT] #endif /* trap handler commands */ @@ -3999,13 +4007,23 @@ jobscmd(int argc UNUSED_PARAM, char **argv) } #endif /* JOBS */ +/* Called only on finished or stopped jobs (no members are running) */ static int getstatus(struct job *job) { int status; int retval; + struct procstat *ps; + + /* Fetch last member's status */ + ps = job->ps + job->nprocs - 1; + status = ps->ps_status; + if (pipefail) { + /* "set -o pipefail" mode: use last _nonzero_ status */ + while (status == 0 && --ps >= job->ps) + status = ps->ps_status; + } - status = job->ps[job->nprocs - 1].ps_status; retval = WEXITSTATUS(status); if (!WIFEXITED(status)) { #if JOBS |