diff options
Diffstat (limited to 'shell/ash.c')
| -rw-r--r-- | shell/ash.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/shell/ash.c b/shell/ash.c index e900a42..f7fc18f 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -9228,7 +9228,7 @@ poplocalvars(int keep) /* * Create a new localvar environment. */ -static void +static struct localvar_list * pushlocalvars(void) { struct localvar_list *ll; @@ -9239,6 +9239,15 @@ pushlocalvars(void) ll->next = localvar_stack; localvar_stack = ll; INT_ON; + + return ll->next; +} + +static void +unwindlocalvars(struct localvar_list *stop) +{ + while (localvar_stack != stop) + poplocalvars(0); } static int @@ -9619,6 +9628,7 @@ evalcommand(union node *cmd, int flags) static const struct builtincmd null_bltin = { "\0\0", bltincmd /* why three NULs? */ }; + struct localvar_list *localvar_stop; struct stackmark smark; union node *argp; struct arglist arglist; @@ -9640,7 +9650,7 @@ evalcommand(union node *cmd, int flags) /* First expand the arguments. */ TRACE(("evalcommand(0x%lx, %d) called\n", (long)cmd, flags)); setstackmark(&smark); - pushlocalvars(); + localvar_stop = pushlocalvars(); back_exitstatus = 0; cmdentry.cmdtype = CMDBUILTIN; @@ -9827,7 +9837,6 @@ evalcommand(union node *cmd, int flags) /* parent */ status = waitforjob(jp); INT_ON; - poplocalvars(0); TRACE(("forked child exited with %d\n", status)); break; } @@ -9874,6 +9883,7 @@ evalcommand(union node *cmd, int flags) out: if (cmd->ncmd.redirect) popredir(/*drop:*/ cmd_is_exec, /*restore:*/ cmd_is_exec); + unwindlocalvars(localvar_stop); if (lastarg) { /* dsl: I think this is intended to be used to support * '_' in 'vi' command mode during line editing... @@ -13607,8 +13617,7 @@ reset(void) popredir(/*drop:*/ 0, /*restore:*/ 0); /* from var.c: */ - while (localvar_stack) - poplocalvars(0); + unwindlocalvars(NULL); } #if PROFILE |