From 2704d6f3f4b864a7af23e4eba421662d59e7e422 Mon Sep 17 00:00:00 2001
From: Keith Bostic <bostic@ucbvax.Berkeley.EDU>
Date: Tue, 4 May 1993 19:10:12 -0800
Subject: [PATCH] date and time created 93/05/04 12:10:12 by bostic

SCCS-vsn: lib/libc/gen/sysconf.c 5.1
---
 usr/src/lib/libc/gen/sysconf.c | 130 +++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 usr/src/lib/libc/gen/sysconf.c

diff --git a/usr/src/lib/libc/gen/sysconf.c b/usr/src/lib/libc/gen/sysconf.c
new file mode 100644
index 0000000000..2481e139de
--- /dev/null
+++ b/usr/src/lib/libc/gen/sysconf.c
@@ -0,0 +1,130 @@
+/*-
+ * Copyright (c) 1993 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Sean Eric Fagan of Cygnus Support.
+ *
+ * %sccs.include.redist.c%
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)sysconf.c	5.1 (Berkeley) %G%";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <sys/sysctl.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+long
+sysconf(name)
+	int name;
+{
+	struct clockinfo clk;
+	size_t len;
+	int mib[2], value;
+
+	switch (name) {
+	case _SC_ARG_MAX:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_ARGMAX;
+		break;
+	case _SC_CHILD_MAX:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_MAXPROC;
+		break;
+	case _SC_CLK_TCK:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_CLOCKRATE;
+		len = sizeof(struct clockinfo);
+		return (sysctl(mib, 2,
+		    &clk, &len, NULL, 0) == -1 ? -1 : clk.hz);
+	case _SC_NGROUPS_MAX:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_NGROUPS;
+		break;
+	case _SC_OPEN_MAX:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_MAXFILES;
+		break;
+	case _SC_JOB_CONTROL:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_JOB_CONTROL;
+		break;
+	case _SC_SAVED_IDS:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_SAVED_IDS;
+		break;
+	case _SC_VERSION:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_POSIX1;
+		break;
+	case _SC_BC_BASE_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_BC_BASE_MAX;
+		break;
+	case _SC_BC_DIM_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_BC_DIM_MAX;
+		break;
+	case _SC_BC_SCALE_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_BC_SCALE_MAX;
+		break;
+	case _SC_BC_STRING_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_BC_STRING_MAX;
+		break;
+	case _SC_COLL_WEIGHTS_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_COLL_WEIGHTS_MAX;
+		break;
+	case _SC_EXPR_NEST_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_EXPR_NEST_MAX;
+		break;
+	case _SC_LINE_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_LINE_MAX;
+		break;
+	case _SC_RE_DUP_MAX:
+		mib[0] = CTL_USER;
+		mib[1] = USER_RE_DUP_MAX;
+		break;
+	case _SC_2_VERSION:
+		mib[0] = CTL_USER;
+		mib[1] = USER_POSIX2_VERSION;
+		break;
+	case _SC_2_C_BIND:
+		mib[0] = CTL_USER;
+		mib[1] = USER_POSIX2_C_BIND;
+		break;
+	case _SC_2_C_DEV:
+		mib[0] = CTL_USER;
+		mib[1] = USER_POSIX2_C_DEV;
+		break;
+	case _SC_2_FORT_DEV:
+		mib[0] = CTL_USER;
+		mib[1] = USER_POSIX2_FORT_DEV;
+		break;
+	case _SC_2_FORT_RUN:
+		mib[0] = CTL_USER;
+		mib[1] = USER_POSIX2_FORT_RUN;
+		break;
+	case _SC_2_LOCALEDEF:
+		mib[0] = CTL_USER;
+		mib[1] = USER_POSIX2_LOCALEDEF;
+		break;
+	case _SC_2_SW_DEV:
+		mib[0] = CTL_USER;
+		mib[1] = USER_POSIX2_SW_DEV;
+		break;
+	default:
+		errno = EINVAL;
+		return (-1);
+	}
+	len = sizeof(value);
+	return (sysctl(mib, 2, &value, &len, NULL, 0) == -1 ? -1 : value); 
+}
-- 
2.20.1