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Fix computation of max_fd on OpenBSD. Issue #23852.

This commit is contained in:
Gregory P. Smith 2015-04-25 23:43:34 -07:00
parent d87dd434c0
commit f9681776c9
1 changed files with 10 additions and 0 deletions
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10
Modules/_posixsubprocess.c
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@ -14,6 +14,9 @@
#ifdef HAVE_SYS_SYSCALL_H
#include <sys/syscall.h>
#endif
#if defined(HAVE_SYS_RESOURCE_H)
#include <sys/resource.h>
#endif
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
@ -174,6 +177,13 @@ safe_get_max_fd(void)
if (local_max_fd >= 0)
return local_max_fd;
#endif
#if defined(HAVE_SYS_RESOURCE_H) && defined(__OpenBSD__)
struct rlimit rl;
/* Not on the POSIX async signal safe functions list but likely
* safe. TODO - Someone should audit OpenBSD to make sure. */
if (getrlimit(RLIMIT_NOFILE, &rl) >= 0)
return (long) rl.rlim_max;
#endif
#ifdef _SC_OPEN_MAX
local_max_fd = sysconf(_SC_OPEN_MAX);
if (local_max_fd == -1)