Add support for missing _SC_* constants for sysconf().
From andy dot shevchenko at gmail dot com
This commit is contained in:
matt
parent
4e69f53b47
commit
c331e46238
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@ -1,4 +1,4 @@
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.\" $NetBSD: sysconf.3,v 1.33 2007/10/15 14:12:56 ad Exp $
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.\" $NetBSD: sysconf.3,v 1.34 2008/08/06 17:17:04 matt Exp $
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.\"
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.\" Copyright (c) 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -87,6 +87,8 @@ The number of clock ticks per second.
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.It Li _SC_FSYNC
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Return 1 if the File Synchronization Option is available on this system,
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otherwise \-1.
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.It Li _SC_HOST_NAME_MAX
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The maximum size of a hostname, including NULL.
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.It Li _SC_IOV_MAX
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The maximum number of
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.Va iovec
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@ -127,6 +129,8 @@ The maximum number of supplemental groups.
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The maximum number of open files per process.
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.It Li _SC_PAGESIZE
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The size of a system page in bytes.
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.It Li _SC_PASS_MAX
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The maximum length of the password, not counting NULL.
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.It Li _SC_READER_WRITER_LOCKS
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The version of
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.St -p1003.1
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@ -134,6 +138,10 @@ and its
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Read-Write Locks
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option to which the system attempts to conform,
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otherwise \-1.
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.It Li _SC_REGEXP
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Return 1 if
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.Tn POSIX
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regular expressions are available on this system, otherwise \-1.
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.It Li _SC_SEMAPHORES
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The version of
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.St -p1003.1
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@ -147,6 +155,10 @@ Semaphores
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option depends on the
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.Li P1003_1B_SEMAPHORE
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kernel option.
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.It Li _SC_SHELL
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Return 1 if
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.Tn POSIX
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shell is available on this system, otherwise \-1.
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.It Li _SC_SPIN_LOCKS
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The version of
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.St -p1003.1
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@ -157,6 +169,8 @@ otherwise \-1.
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.It Li _SC_STREAM_MAX
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The minimum maximum number of streams that a process may have open
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at any one time.
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.It Li _SC_SYMLOOP_MAX
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The maximum number of symbolic links that may be expanded in a path name.
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.It Li _SC_SYNCHRONIZED_IO
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Return 1 if the Synchronized I/O Option is available on this system,
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otherwise \-1.
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@ -1,4 +1,4 @@
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/* $NetBSD: sysconf.c,v 1.32 2008/06/25 11:46:12 ad Exp $ */
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/* $NetBSD: sysconf.c,v 1.33 2008/08/06 17:17:04 matt Exp $ */
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/*-
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* Copyright (c) 1993
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@ -37,7 +37,7 @@
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#if 0
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static char sccsid[] = "@(#)sysconf.c 8.2 (Berkeley) 3/20/94";
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#else
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__RCSID("$NetBSD: sysconf.c,v 1.32 2008/06/25 11:46:12 ad Exp $");
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__RCSID("$NetBSD: sysconf.c,v 1.33 2008/08/06 17:17:04 matt Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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@ -52,6 +52,7 @@ __RCSID("$NetBSD: sysconf.c,v 1.32 2008/06/25 11:46:12 ad Exp $");
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#include <time.h>
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#include <unistd.h>
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#include <paths.h>
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#include <pwd.h>
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#ifdef __weak_alias
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__weak_alias(sysconf,__sysconf)
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@ -336,13 +337,23 @@ sysconf(int name)
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case _SC_GETPW_R_SIZE_MAX:
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return _GETPW_R_SIZE_MAX;
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/* Unsorted */
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case _SC_HOST_NAME_MAX:
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return MAXHOSTNAMELEN;
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case _SC_PASS_MAX:
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return _PASSWORD_LEN;
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case _SC_REGEXP:
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return _POSIX_REGEXP;
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case _SC_SHELL:
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return _POSIX_SHELL;
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case _SC_SYMLOOP_MAX:
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return MAXSYMLINKS;
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yesno: if (sysctl(mib, mib_len, &value, &len, NULL, 0) == -1)
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return (-1);
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if (value == 0)
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return (-1);
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return (value);
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/*NOTREACHED*/
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break;
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/* Extensions */
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case _SC_NPROCESSORS_CONF:
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@ -1,4 +1,4 @@
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/* $NetBSD: unistd.h,v 1.43 2008/07/26 19:37:58 heinz Exp $ */
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/* $NetBSD: unistd.h,v 1.44 2008/08/06 17:17:03 matt Exp $ */
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/*
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* Copyright (c) 1989, 1993
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@ -109,6 +109,10 @@
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#define _POSIX_READER_WRITER_LOCKS 200112L
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/* XPG4.2 shared memory */
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#define _XOPEN_SHM 0
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/* shell */
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#define _POSIX_SHELL 1
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/* regular expressions */
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#define _POSIX_REGEXP 1
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/* access function */
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#define F_OK 0 /* test for existence of file */
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@ -227,6 +231,23 @@
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#define _SC_THREAD_PROCESS_SHARED 66
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#define _SC_THREAD_SAFE_FUNCTIONS 67
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#define _SC_TTY_NAME_MAX 68
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#define _SC_HOST_NAME_MAX 69
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#define _SC_PASS_MAX 70
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#define _SC_REGEXP 71
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#define _SC_SHELL 72
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#define _SC_SYMLOOP_MAX 73
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/* Actually, they are not supported or implemented yet */
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#define _SC_V6_ILP32_OFF32 74
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#define _SC_V6_ILP32_OFFBIG 75
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#define _SC_V6_LP64_OFF64 76
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#define _SC_V6_LPBIG_OFFBIG 77
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#define _SC_2_PBS 80
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#define _SC_2_PBS_ACCOUNTING 81
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#define _SC_2_PBS_CHECKPOINT 82
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#define _SC_2_PBS_LOCATE 83
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#define _SC_2_PBS_MESSAGE 84
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#define _SC_2_PBS_TRACK 85
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#ifdef _NETBSD_SOURCE
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/* Commonly provided sysconf() extensions */
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