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authorDenys Vlasenko <vda.linux@googlemail.com>2016-11-08 17:28:45 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2016-11-08 17:28:45 +0100
commit1eada9ad8d31addd57213a072ddfc278e5776740 (patch)
treefdea7ec9f21b4b23b132a867fb797d1848c29089 /shell
parent830ea35484cecb8b4cdbe0f30cc5d573ff0e3411 (diff)
downloadbusybox-1eada9ad8d31addd57213a072ddfc278e5776740.tar.gz
hush: simplify insert_bg_jobs
function old new delta insert_bg_job 366 281 -85 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
-rw-r--r--shell/hush.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 5e51adfdc..78a8f5c03 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -6983,12 +6983,12 @@ static const char *get_cmdtext(struct pipe *pi)
* On subsequent bg argv is trashed, but we won't use it */
if (pi->cmdtext)
return pi->cmdtext;
+
argv = pi->cmds[0].argv;
- if (!argv || !argv[0]) {
+ if (!argv) {
pi->cmdtext = xzalloc(1);
return pi->cmdtext;
}
-
len = 0;
do {
len += strlen(*argv) + 1;
@@ -6997,9 +6997,7 @@ static const char *get_cmdtext(struct pipe *pi)
pi->cmdtext = p;
argv = pi->cmds[0].argv;
do {
- len = strlen(*argv);
- memcpy(p, *argv, len);
- p += len;
+ p = stpcpy(p, *argv);
*p++ = ' ';
} while (*++argv);
p[-1] = '\0';
@@ -7965,8 +7963,8 @@ static int run_list(struct pipe *pi)
/* We ran a builtin, function, or group.
* rcode is already known
* and we don't need to wait for anything. */
- G.last_exitcode = rcode;
debug_printf_exec(": builtin/func exitcode %d\n", rcode);
+ G.last_exitcode = rcode;
check_and_run_traps();
#if ENABLE_HUSH_LOOPS
/* Was it "break" or "continue"? */
@@ -7998,30 +7996,30 @@ static int run_list(struct pipe *pi)
/* even bash 3.2 doesn't do that well with nested bg:
* try "{ { sleep 10; echo DEEP; } & echo HERE; } &".
* I'm NOT treating inner &'s as jobs */
- check_and_run_traps();
#if ENABLE_HUSH_JOB
if (G.run_list_level == 1)
insert_bg_job(pi);
#endif
/* Last command's pid goes to $! */
G.last_bg_pid = pi->cmds[pi->num_cmds - 1].pid;
- G.last_exitcode = rcode = EXIT_SUCCESS;
debug_printf_exec(": cmd&: exitcode EXIT_SUCCESS\n");
+/* Check pi->pi_inverted? "! sleep 1 & echo $?": bash says 1. dash and ash says 0 */
+ G.last_exitcode = rcode = EXIT_SUCCESS;
+ check_and_run_traps();
} else {
#if ENABLE_HUSH_JOB
if (G.run_list_level == 1 && G_interactive_fd) {
/* Waits for completion, then fg's main shell */
rcode = checkjobs_and_fg_shell(pi);
debug_printf_exec(": checkjobs_and_fg_shell exitcode %d\n", rcode);
- check_and_run_traps();
} else
#endif
{ /* This one just waits for completion */
rcode = checkjobs(pi, 0 /*(no pid to wait for)*/);
debug_printf_exec(": checkjobs exitcode %d\n", rcode);
- check_and_run_traps();
}
G.last_exitcode = rcode;
+ check_and_run_traps();
}
}