Please review:
commit da30b4b787695fbf77e5d941ff350a66ca572bcb
Author: Herbert Xu <herb...@gondor.apana.org.au>
Date: Mon Oct 6 10:39:47 2014 +0800
[BUILTIN] Exit without arguments in a trap should use status outside traps
POSIX now requires that exit without arguments in a trap should
return the last command status prior to executing traps. This
patch implements this behaviour.
Signed-off-by: Herbert Xu <herb...@gondor.apana.org.au>
diff --git a/ChangeLog b/ChangeLog
index 4dc8fa3..d0ec202 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-10-06 Herbert Xu <herb...@gondor.apana.org.au>
+
+ * Exit without arguments in a trap should use status outside traps.
+
2014-10-03 Herbert Xu <herb...@gondor.apana.org.au>
* Do not clobber exitstatus in evalcommand.
diff --git a/src/eval.c b/src/eval.c
index 3f4d957..51a900d 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -74,6 +74,7 @@ static int funcline; /* starting line number of
current function, or 0 if not i
char *commandname;
int exitstatus; /* exit status of last command */
int back_exitstatus; /* exit status of backquoted command */
+int savestatus = -1; /* exit status of last command outside traps */
#if !defined(__alpha__) || (defined(__GNUC__) && __GNUC__ >= 3)
@@ -114,6 +115,10 @@ INCLUDE "eval.h"
RESET {
evalskip = 0;
loopnest = 0;
+ if (savestatus >= 0) {
+ exitstatus = savestatus;
+ savestatus = -1;
+ }
}
#endif
diff --git a/src/eval.h b/src/eval.h
index dc8acd2..6e62137 100644
--- a/src/eval.h
+++ b/src/eval.h
@@ -37,6 +37,7 @@
extern char *commandname; /* currently executing command */
extern int exitstatus; /* exit status of last command */
extern int back_exitstatus; /* exit status of backquoted command */
+extern int savestatus; /* exit status of last command outside traps */
struct backcmd { /* result of evalbackcmd */
diff --git a/src/main.c b/src/main.c
index f79ad7d..29a258d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -339,8 +339,15 @@ exitcmd(int argc, char **argv)
{
if (stoppedjobs())
return 0;
- if (argc > 1)
- exitstatus = number(argv[1]);
+
+ if (argc > 1) {
+ int status = number(argv[1]);
+
+ exitstatus = status;
+ if (savestatus >= 0)
+ savestatus = status;
+ }
+
exraise(EXEXIT);
/* NOTREACHED */
}
diff --git a/src/trap.c b/src/trap.c
index e34e0f8..15faeff 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -314,12 +314,17 @@ void dotrap(void)
char *p;
char *q;
int i;
- int savestatus;
+ int status, last_status;
if (!pendingsigs)
return;
- savestatus = exitstatus;
+ status = savestatus;
+ last_status = status;
+ if (likely(status < 0)) {
+ status = exitstatus;
+ savestatus = status;
+ }
pendingsigs = 0;
barrier();
@@ -338,8 +343,10 @@ void dotrap(void)
if (!p)
continue;
evalstring(p, 0);
- exitstatus = savestatus;
+ exitstatus = status;
}
+
+ savestatus = last_status;
}
@@ -373,18 +380,14 @@ exitshell(void)
{
struct jmploc loc;
char *p;
- volatile int status;
#ifdef HETIO
hetio_reset_term();
#endif
- status = exitstatus;
- TRACE(("pid %d, exitshell(%d)\n", getpid(), status));
- if (setjmp(loc.loc)) {
- if (exception == EXEXIT)
- status = exitstatus;
+ savestatus = exitstatus;
+ TRACE(("pid %d, exitshell(%d)\n", getpid(), savestatus));
+ if (setjmp(loc.loc))
goto out;
- }
handler = &loc;
if ((p = trap[0])) {
trap[0] = NULL;
@@ -399,7 +402,7 @@ out:
if (likely(!setjmp(loc.loc)))
setjobctl(0);
flushall();
- _exit(status);
+ _exit(savestatus);
/* NOTREACHED */
}
Cheers,
--
Email: Herbert Xu <herb...@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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