fix backwards posix_spawn file action order

[musl] / src / process / posix_spawn.c

diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index 59f4a8b..b1a9fbd 100644 (file)
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -51,10 +51,11 @@ int __posix_spawnx(pid_t *res, const char *path,
                __syscall(SYS_setuid, __syscall(SYS_getuid)) ))
                _exit(127);
 
-       if (fa) {
+       if (fa && fa->__actions) {
                struct fdop *op;
                int ret, fd;
-               for (op = fa->__actions; op; op = op->next) {
+               for (op = fa->__actions; op->next; op = op->next);
+               for (; op; op = op->prev) {
                        switch(op->cmd) {
                        case FDOP_CLOSE:
                                ret = __syscall(SYS_close, op->fd);