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Diffstat (limited to 'libc/sysdeps/linux/common/ioctl.c')
-rw-r--r--libc/sysdeps/linux/common/ioctl.c27
1 files changed, 21 insertions, 6 deletions
diff --git a/libc/sysdeps/linux/common/ioctl.c b/libc/sysdeps/linux/common/ioctl.c
index e8e3a1031..02393b98e 100644
--- a/libc/sysdeps/linux/common/ioctl.c
+++ b/libc/sysdeps/linux/common/ioctl.c
@@ -11,6 +11,12 @@
#include <stdarg.h>
#include <sys/ioctl.h>
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <sysdep-cancel.h>
+#else
+#define SINGLE_THREAD_P 1
+#endif
+
libc_hidden_proto(ioctl)
#define __NR___syscall_ioctl __NR_ioctl
@@ -19,13 +25,22 @@ _syscall3(int, __syscall_ioctl, int, fd, unsigned long int, request, void *, arg
int ioctl(int fd, unsigned long int request, ...)
{
- void *arg;
- va_list list;
+ void *arg;
+ va_list list;
+
+ va_start(list, request);
+ arg = va_arg(list, void *);
+
+ va_end(list);
- va_start(list, request);
- arg = va_arg(list, void *);
+ if (SINGLE_THREAD_P)
+ return __syscall_ioctl(fd, request, arg);
- va_end(list);
- return __syscall_ioctl(fd, request, arg);
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ int result = __syscall_ioctl(fd, request, arg);
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
+#endif
}
libc_hidden_def(ioctl)