BSD 4.4 Lite Kernel Sources

1 files changed, 71 insertions, 0 deletions

diff --git a/sys/sys/exec.h b/sys/sys/exec.h
new file mode 100644
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+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)exec.h	8.3 (Berkeley) 1/21/94
+ */
+
+#include <machine/exec.h>
+
+/*
+ * The following structure is found at the top of the user stack of each
+ * user process. The ps program uses it to locate argv and environment
+ * strings. Programs that wish ps to display other information may modify
+ * it; normally ps_argvstr points to the text for argv[0], and ps_nargvstr
+ * is the same as the program's argc. The fields ps_envstr and ps_nenvstr
+ * are the equivalent for the environment.
+ */
+struct ps_strings {
+	char	*ps_argvstr;	/* first of 0 or more argument strings */
+	int	ps_nargvstr;	/* the number of argument strings */
+	char	*ps_envstr;	/* first of 0 or more environment strings */
+	int	ps_nenvstr;	/* the number of environment strings */
+};
+
+/*
+ * Address of ps_strings structure (in user space).
+ */
+#define	PS_STRINGS \
+	((struct ps_strings *)(USRSTACK - sizeof(struct ps_strings)))
+
+/*
+ * Arguments to the exec system call.
+ */
+struct execve_args {
+	char	*fname;
+	char	**argp;
+	char	**envp;
+};