1b07ffc8ba
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@421 ec53bebd-3082-4978-b11e-865c3cabbd6b
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/param.h>
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#include <unistd.h>
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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#ifdef HAVE_SYS_SYSCTL_H
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#include <sys/sysctl.h>
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#endif
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int getdtablesize(void)
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{
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int files = -1;
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#if defined(HAVE_SYSCONF) && defined(_SC_OPEN_MAX)
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files = sysconf(_SC_OPEN_MAX);
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#else /* !defined(HAVE_SYSCONF) */
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#if defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)
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struct rlimit res;
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if (getrlimit(RLIMIT_NOFILE, &res) == 0)
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files = res.rlim_cur;
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#else /* !definded(HAVE_GETRLIMIT) */
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#if defined(HAVE_SYSCTL) && defined(CTL_KERN) && defined(KERN_MAXFILES)
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int mib[2];
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size_t len;
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mib[0] = CTL_KERN;
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mib[1] = KERN_MAXFILES;
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len = sizeof(files);
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sysctl(&mib, 2, &files, sizeof(nfil), NULL, 0);
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#endif /* defined(HAVE_SYSCTL) */
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#endif /* !definded(HAVE_GETRLIMIT) */
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#endif /* !defined(HAVE_SYSCONF) */
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#ifdef OPEN_MAX
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if (files < 0)
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files = OPEN_MAX;
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#endif
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#ifdef NOFILE
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if (files < 0)
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files = NOFILE;
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#endif
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return files;
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}
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