X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fprocess%2Fposix_spawn.c;h=9f2d7423530c5faa034f9b179176ccd60ba3bef2;hb=a5d6199d091aad750b1fc325240a141a88ee770e;hp=59f4a8bba2479b8749ccb69e0345f8bceecccc4b;hpb=a0ae0b09368e6dbfa82860187dcd6fdf86d86fee;p=musl

diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index 59f4a8bb..9f2d7423 100644
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -11,7 +11,8 @@ extern char **environ;
 int __posix_spawnx(pid_t *res, const char *path,
 	int (*exec)(const char *, char *const *),
 	const posix_spawn_file_actions_t *fa,
-	const posix_spawnattr_t *attr, char **argv, char **envp)
+	const posix_spawnattr_t *attr,
+	char *const argv[], char *const envp[])
 {
 	pid_t pid;
 	sigset_t oldmask;
@@ -51,10 +52,11 @@ 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);
@@ -80,7 +82,7 @@ int __posix_spawnx(pid_t *res, const char *path,
 	sigprocmask(SIG_SETMASK, (attr->__flags & POSIX_SPAWN_SETSIGMASK)
 		? &attr->__mask : &oldmask, 0);
 
-	if (envp) environ = envp;
+	if (envp) environ = (char **)envp;
 	exec(path, argv);
 	_exit(127);
 
@@ -89,7 +91,8 @@ int __posix_spawnx(pid_t *res, const char *path,
 
 int posix_spawn(pid_t *res, const char *path,
 	const posix_spawn_file_actions_t *fa,
-	const posix_spawnattr_t *attr, char **argv, char **envp)
+	const posix_spawnattr_t *attr,
+	char *const argv[], char *const envp[])
 {
 	return __posix_spawnx(res, path, execv, fa, attr, argv, envp);
 }