Fix computation of max_fd on OpenBSD. Issue #23852.
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@ -14,6 +14,9 @@
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#ifdef HAVE_SYS_SYSCALL_H
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#include <sys/syscall.h>
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#endif
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#if defined(HAVE_SYS_RESOURCE_H)
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#include <sys/resource.h>
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#endif
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#ifdef HAVE_DIRENT_H
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#include <dirent.h>
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#endif
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@ -174,6 +177,13 @@ safe_get_max_fd(void)
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if (local_max_fd >= 0)
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return local_max_fd;
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#endif
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#if defined(HAVE_SYS_RESOURCE_H) && defined(__OpenBSD__)
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struct rlimit rl;
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/* Not on the POSIX async signal safe functions list but likely
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* safe. TODO - Someone should audit OpenBSD to make sure. */
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if (getrlimit(RLIMIT_NOFILE, &rl) >= 0)
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return (long) rl.rlim_max;
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#endif
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#ifdef _SC_OPEN_MAX
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local_max_fd = sysconf(_SC_OPEN_MAX);
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if (local_max_fd == -1)
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