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netutls/dhcpc: treat EINTR as normal errno

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A return code of EINTR is perfectly normal, and isn't an error as such.
It's an indication that your program may need to do something because
a signal occurred, but if not, should re-call recv().

Signed-off-by: chao an <anchao@xiaomi.com>
This commit is contained in:
chao an 2022-09-27 03:12:15 +08:00 committed by Xiang Xiao
parent a1ea7f9df7
commit 09dfbdf4c7
1 changed files with 2 additions and 2 deletions
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4
netutils/dhcpc/dhcpc.c
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@ -765,7 +765,7 @@ int dhcpc_request(FAR void *handle, FAR struct dhcpc_state *presult)
* of time). Then loop and send the DISCOVER command again. * of time). Then loop and send the DISCOVER command again.
*/ */
else if (errno != EAGAIN) else if (errno != EAGAIN && errno != EINTR)
{ {
/* An error other than a timeout was received -- error out */ /* An error other than a timeout was received -- error out */
@ -865,7 +865,7 @@ int dhcpc_request(FAR void *handle, FAR struct dhcpc_state *presult)
* (at most 3 times). * (at most 3 times).
*/ */
else if (errno != EAGAIN) else if (errno != EAGAIN && errno != EINTR)
{ {
/* An error other than a timeout was received */ /* An error other than a timeout was received */