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43 lines
1.8 KiB
43 lines
1.8 KiB
diff -up cups-2.2.6/cups/http-addrlist.c.cupsgetjobs-pollhup cups-2.2.6/cups/http-addrlist.c |
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--- cups-2.2.6/cups/http-addrlist.c.cupsgetjobs-pollhup 2023-12-19 18:25:15.484637450 +0100 |
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+++ cups-2.2.6/cups/http-addrlist.c 2023-12-19 18:28:57.129163387 +0100 |
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@@ -313,6 +313,39 @@ httpAddrConnect2( |
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{ |
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# ifdef HAVE_POLL |
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DEBUG_printf(("pfds[%d].revents=%x\n", i, pfds[i].revents)); |
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+ |
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+# ifdef _WIN32 |
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+ if (((WSAGetLastError() == WSAEINPROGRESS) && (pfds[i].revents & POLLIN) && (pfds[i].revents & POLLOUT)) || |
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+ ((pfds[i].revents & POLLHUP) && (pfds[i].revents & (POLLIN|POLLOUT)))) |
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+# else |
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+ if (((errno == EINPROGRESS) && (pfds[i].revents & POLLIN) && (pfds[i].revents & POLLOUT)) || |
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+ ((pfds[i].revents & POLLHUP) && (pfds[i].revents & (POLLIN|POLLOUT)))) |
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+# endif /* _WIN32 */ |
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+ { |
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+ // Some systems generate POLLIN or POLLOUT together with POLLHUP when doing |
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+ // asynchronous connections. The solution seems to be to use getsockopt to |
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+ // check the SO_ERROR value and ignore the POLLHUP if there is no error or |
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+ // the error is EINPROGRESS. |
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+ |
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+ int sres, /* Return value from getsockopt() - 0, or -1 if error */ |
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+ serr; /* Option SO_ERROR value */ |
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+ socklen_t slen = sizeof(serr); /* Option value size */ |
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+ |
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+ sres = getsockopt(fds[i], SOL_SOCKET, SO_ERROR, &serr, &slen); |
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+ |
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+ if (sres || serr) |
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+ { |
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+ pfds[i].revents |= POLLERR; |
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+# ifdef DEBUG |
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+ DEBUG_printf(("1httpAddrConnect2: getsockopt returned: %d with error: %s", sres, strerror(serr))); |
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+# endif |
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+ } |
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+ else if (pfds[i].revents && (pfds[i].revents & POLLHUP) && (pfds[i].revents & (POLLIN | POLLOUT))) |
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+ { |
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+ pfds[i].revents &= ~POLLHUP; |
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+ } |
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+ } |
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+ |
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if (pfds[i].revents && !(pfds[i].revents & (POLLERR | POLLHUP))) |
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# else |
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if (FD_ISSET(fds[i], &input_set) && !FD_ISSET(fds[i], &error_set))
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