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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2020-02-21 02:18:06 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2020-02-21 02:18:06 +0100 |
| commit | cc9ecd9af13f04a4814ebdec60942962c3e9f14f (patch) | |
| tree | 700e8aa0d2e23df90312d224f42a76733c9b248e /shell | |
| parent | f977e004cefe46e8010c3d29681d77da50e380a9 (diff) | |
| download | busybox-cc9ecd9af13f04a4814ebdec60942962c3e9f14f.tar.gz | |
hush: make "exit" in trap use pre-trap exitcode
function old new delta
check_and_run_traps 259 276 +17
builtin_exit 42 53 +11
hush_main 1086 1096 +10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 38/0) Total: 38 bytes
Fixes exitcode_trap2.tests.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/hush.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/shell/hush.c b/shell/hush.c index 6172f2285..b881b001a 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -988,6 +988,7 @@ struct globals { # define G_fatal_sig_mask 0 #endif #if ENABLE_HUSH_TRAP + int pre_trap_exitcode; # if ENABLE_HUSH_FUNCTIONS int return_exitcode; # endif @@ -2111,10 +2112,11 @@ static int check_and_run_traps(void) argv[1] = xstrdup(G_traps[sig]); /* why strdup? trap can modify itself: trap 'trap "echo oops" INT' INT */ argv[2] = NULL; - save_rcode = G.last_exitcode; + G.pre_trap_exitcode = save_rcode = G.last_exitcode; builtin_eval(argv); free(argv[1]); G.last_exitcode = save_rcode; + G.pre_trap_exitcode = -1; # if ENABLE_HUSH_FUNCTIONS if (G.return_exitcode >= 0) { debug_printf_exec("trap exitcode:%d\n", G.return_exitcode); @@ -9927,8 +9929,11 @@ int hush_main(int argc, char **argv) INIT_G(); if (EXIT_SUCCESS != 0) /* if EXIT_SUCCESS == 0, it is already done */ G.last_exitcode = EXIT_SUCCESS; -#if ENABLE_HUSH_TRAP && ENABLE_HUSH_FUNCTIONS +#if ENABLE_HUSH_TRAP +# if ENABLE_HUSH_FUNCTIONS G.return_exitcode = -1; +# endif + G.pre_trap_exitcode = -1; #endif #if ENABLE_HUSH_FAST @@ -10575,8 +10580,13 @@ static int FAST_FUNC builtin_exit(char **argv) /* note: EXIT trap is run by hush_exit */ argv = skip_dash_dash(argv); - if (argv[0] == NULL) + if (argv[0] == NULL) { +#if ENABLE_HUSH_TRAP + if (G.pre_trap_exitcode >= 0) /* "exit" in trap uses $? from before the trap */ + hush_exit(G.pre_trap_exitcode); +#endif hush_exit(G.last_exitcode); + } /* mimic bash: exit 123abc == exit 255 + error msg */ xfunc_error_retval = 255; /* bash: exit -2 == exit 254, no error msg */ |