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upstream: handle EINTR in waitfd() and timeout_connect() helpers;

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bz#3071; ok dtucker@

OpenBSD-Commit-ID: 08fa87be50070bd8b754d9b1ebb1138d7bc9d8ee
This commit is contained in:
djm@openbsd.org 2020-06-26 05:16:38 +00:00 committed by Damien Miller
parent fe2ec0b9c1
commit 3d06ff4bbd
1 changed files with 13 additions and 8 deletions
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21
misc.c
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@ -1,4 +1,4 @@
/* $OpenBSD: misc.c,v 1.152 2020/05/29 11:17:56 dtucker Exp $ */ /* $OpenBSD: misc.c,v 1.153 2020/06/26 05:16:38 djm Exp $ */
/* /*
* Copyright (c) 2000 Markus Friedl. All rights reserved. * Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2005-2020 Damien Miller. All rights reserved. * Copyright (c) 2005-2020 Damien Miller. All rights reserved.
@ -253,7 +253,7 @@ waitfd(int fd, int *timeoutp, short events)
errno = oerrno; errno = oerrno;
if (r > 0) if (r > 0)
return 0; return 0;
else if (r == -1 && errno != EAGAIN) else if (r == -1 && errno != EAGAIN && errno != EINTR)
return -1; return -1;
else if (r == 0) else if (r == 0)
break; break;
@ -292,12 +292,17 @@ timeout_connect(int sockfd, const struct sockaddr *serv_addr,
return connect(sockfd, serv_addr, addrlen); return connect(sockfd, serv_addr, addrlen);
set_nonblock(sockfd); set_nonblock(sockfd);
if (connect(sockfd, serv_addr, addrlen) == 0) { for (;;) {
/* Succeeded already? */ if (connect(sockfd, serv_addr, addrlen) == 0) {
unset_nonblock(sockfd); /* Succeeded already? */
return 0; unset_nonblock(sockfd);
} else if (errno != EINPROGRESS) return 0;
return -1; } else if (errno == EINTR)
continue;
else if (errno != EINPROGRESS)
return -1;
break;
}
if (waitfd(sockfd, timeoutp, POLLIN | POLLOUT) == -1) if (waitfd(sockfd, timeoutp, POLLIN | POLLOUT) == -1)
return -1; return -1;