Bug #11877 ยป hostname_size.patch
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char buf[RUBY_MAX_HOST_NAME_LEN+1];
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if (gethostname(buf, (int)sizeof buf - 1) < 0)
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if (gethostname(buf, (int)sizeof buf) < 0)
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rb_sys_fail("gethostname(3)");
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buf[sizeof buf - 1] = '\0';
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