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[hurd,commited 1/3] hurd: fix usleep(ULONG_MAX)
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From: |
Samuel Thibault |
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Subject: |
[hurd,commited 1/3] hurd: fix usleep(ULONG_MAX) |
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Date: |
Mon, 29 Jun 2020 02:32:16 +0200 |
* sysdeps/mach/usleep.c (usleep): Clamp timeout when rouding up.
---
sysdeps/mach/usleep.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/sysdeps/mach/usleep.c b/sysdeps/mach/usleep.c
index 530336ba0b..d53eb04a51 100644
--- a/sysdeps/mach/usleep.c
+++ b/sysdeps/mach/usleep.c
@@ -25,11 +25,15 @@ int
usleep (useconds_t useconds)
{
mach_port_t recv;
+ useconds_t useconds_up = useconds + 999;
+
+ if (useconds_up < useconds)
+ useconds_up = UINT32_MAX;
recv = __mach_reply_port ();
(void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT,
- 0, 0, recv, (useconds + 999) / 1000, MACH_PORT_NULL);
+ 0, 0, recv, useconds_up / 1000, MACH_PORT_NULL);
__mach_port_destroy (mach_task_self (), recv);
return 0;
--
2.27.0