Setting PS1 to: PS1='`xxx(`'
causes the shell to terminate with the error: sh: syntax error: unexpected end of file (expecting ")") This happens because old-style backquotes require the input to be reread and thus call setinputstring() a second time. Prevent the problem by unwinding all recently opened files in expandstr(). function old new delta unwindfiles - 22 +22 expandstr 247 262 +15 forkchild 631 625 -6 evalcommand 1694 1685 -9 ash_main 1346 1336 -10 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/3 up/down: 37/-25) Total: 12 bytes Signed-off-by: Ron Yorston <[email protected]> --- shell/ash.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/shell/ash.c b/shell/ash.c index b707d00d0..039524010 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -13042,6 +13042,7 @@ expandstr(const char *ps, int syntax_type) { union node n; int saveprompt; + struct parsefile *file_stop = g_parsefile; /* XXX Fix (char *) cast. */ setinputstring((char *)ps); @@ -13068,7 +13069,7 @@ expandstr(const char *ps, int syntax_type) doprompt = saveprompt; - popfile(); + unwindfiles(file_stop); n.narg.type = NARG; n.narg.next = NULL; -- 2.20.1 _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
