diff options
| -rw-r--r-- | shell/ash.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/shell/ash.c b/shell/ash.c index 5bb10e5..81d2422 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -9722,18 +9722,23 @@ poplocalvars(int keep) * Create a new localvar environment. */ static struct localvar_list * -pushlocalvars(void) +pushlocalvars(int push) { struct localvar_list *ll; + struct localvar_list *top; + + top = localvar_stack; + if (!push) + goto out; INT_OFF; ll = ckzalloc(sizeof(*ll)); /*ll->lv = NULL; - zalloc did it */ - ll->next = localvar_stack; + ll->next = top; localvar_stack = ll; INT_ON; - - return ll->next; + out: + return top; } static void @@ -10217,6 +10222,8 @@ evalcommand(union node *cmd, int flags) vflags = VEXPORT; } + localvar_stop = pushlocalvars(vlocal); + /* Reserve one extra spot at the front for shellexec. */ nargv = stalloc(sizeof(char *) * (argc + 2)); argv = ++nargv; @@ -10245,7 +10252,6 @@ evalcommand(union node *cmd, int flags) status = redirectsafe(cmd->ncmd.redirect, REDIR_PUSH | REDIR_SAVEFD2); if (status) { - vlocal = 0; bail: exitstatus = status; @@ -10256,10 +10262,6 @@ evalcommand(union node *cmd, int flags) goto out; } - localvar_stop = NULL; - if (vlocal) - localvar_stop = pushlocalvars(); - for (argp = cmd->ncmd.assign; argp; argp = argp->narg.next) { struct strlist **spp; @@ -10410,8 +10412,7 @@ evalcommand(union node *cmd, int flags) popredir(/*drop:*/ cmd_is_exec); unwindredir(redir_stop); unwindfiles(file_stop); - if (vlocal) - unwindlocalvars(localvar_stop); + unwindlocalvars(localvar_stop); if (lastarg) { /* dsl: I think this is intended to be used to support * '_' in 'vi' command mode during line editing... |