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56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
# HG changeset patch
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# User Thibault Charbonnier <thibaultcha@fastmail.com>
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# Date 1481847421 28800
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# Thu Dec 15 16:17:01 2016 -0800
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# Node ID 8bf038fe006fd8ae253d6b41fc6cf109a8912d3e
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# Parent a3dc657f4e9530623683e6b85bd7492662e4dc47
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Resolver: ignore ipv6=off resolver option when no ipv6 support
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Makes the resolver directive more robust: we only error out when ipv6
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resolution is desired but not supported (ipv6=on).
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use case 1: some configurations are sometimes re-used between builds with and
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without ipv6 support. This patch avoids the need to remove the "ipv6=off" flag.
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use case 2: currently, some tools rely on the --with-ipv6 configure option from
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"nginx -V" to determine if ipv6 resolution should be disabled in some cases.
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With this option disappearing in Nginx 1.11.5, this patch would allow such tools
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to assume "ipv6=off" to be safe regardless of ipv6 support in the current
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build.
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diff -r a3dc657f4e95 -r 8bf038fe006f src/core/ngx_resolver.c
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--- a/src/core/ngx_resolver.c Thu Dec 15 21:44:34 2016 +0300
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+++ b/src/core/ngx_resolver.c Thu Dec 15 16:17:01 2016 -0800
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@@ -224,14 +224,22 @@
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continue;
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}
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-#if (NGX_HAVE_INET6)
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if (ngx_strncmp(names[i].data, "ipv6=", 5) == 0) {
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if (ngx_strcmp(&names[i].data[5], "on") == 0) {
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+#if (NGX_HAVE_INET6)
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r->ipv6 = 1;
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+#else
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+ ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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+ "no ipv6 support but \"%V\" in resolver",
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+ &names[i]);
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+ return NULL;
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+#endif
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} else if (ngx_strcmp(&names[i].data[5], "off") == 0) {
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+#if (NGX_HAVE_INET6)
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r->ipv6 = 0;
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+#endif
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} else {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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@@ -241,7 +249,6 @@
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continue;
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}
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-#endif
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ngx_memzero(&u, sizeof(ngx_url_t));
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