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-rw-r--r--src/stdio/popen.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/stdio/popen.c b/src/stdio/popen.c
index 19bbe7cf..3ec83394 100644
--- a/src/stdio/popen.c
+++ b/src/stdio/popen.c
@@ -34,6 +34,9 @@ FILE *popen(const char *cmd, const char *mode)
e = ENOMEM;
if (!posix_spawn_file_actions_init(&fa)) {
+ for (FILE *l = *__ofl_lock(); l; l=l->next)
+ if (l->pipe_pid && posix_spawn_file_actions_addclose(&fa, l->fd))
+ goto fail;
if (!posix_spawn_file_actions_adddup2(&fa, p[1-op], 1-op)) {
if (!(e = posix_spawn(&pid, "/bin/sh", &fa, 0,
(char *[]){ "sh", "-c", (char *)cmd, 0 }, __environ))) {
@@ -42,9 +45,12 @@ FILE *popen(const char *cmd, const char *mode)
if (!strchr(mode, 'e'))
fcntl(p[op], F_SETFD, 0);
__syscall(SYS_close, p[1-op]);
+ __ofl_unlock();
return f;
}
}
+fail:
+ __ofl_unlock();
posix_spawn_file_actions_destroy(&fa);
}
fclose(f);