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+/* $NetBSD: exec.h,v 1.21 2003/08/07 09:05:31 agc Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * 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. 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) 6/8/95
+ */
+
+#ifndef ___exec_h
+#define ___exec_h
+
+/* values of cmdtype */
+#define CMDUNKNOWN -1 /* no entry in table for command */
+#define CMDNORMAL 0 /* command is an executable program */
+#define CMDFUNCTION 1 /* command is a shell function */
+#define CMDBUILTIN 2 /* command is a shell builtin */
+#define CMDSPLBLTIN 3 /* command is a special shell builtin */
+
+
+union param {
+ struct
+ {
+ int index;
+ int suffix; /* PC suffix index */
+ } n;
+ int (*bltin)(struct shinstance*, int, char**);
+ union node *func;
+};
+
+struct cmdentry {
+ int cmdtype;
+ union param u;
+};
+
+
+/* action to find_command() */
+#define DO_ERR 0x01 /* prints errors */
+#define DO_ABS 0x02 /* checks absolute paths */
+#define DO_NOFUNC 0x04 /* don't return shell functions, for command */
+#define DO_ALTPATH 0x08 /* using alternate path */
+#define DO_ALTBLTIN 0x20 /* %builtin in alt. path */
+
+/*extern const char *pathopt;*/ /* set by padvance */
+
+#if !defined(__GNUC__) && !defined(__attribute__)
+# define __attribute__(a)
+#endif
+
+#ifndef SH_FORKED_MODE
+void subshellinitexec(shinstance *, shinstance *);
+#endif
+SH_NORETURN_1 void shellexec(struct shinstance *, char **, char **, const char *, int, int) SH_NORETURN_2;
+char *padvance(struct shinstance *, const char **, const char *);
+int hashcmd(struct shinstance *, int, char **);
+void find_command(struct shinstance *, char *, struct cmdentry *, int, const char *);
+int (*find_builtin(struct shinstance *, char *))(struct shinstance *, int, char **);
+int (*find_splbltin(struct shinstance *, char *))(struct shinstance *, int, char **);
+void hashcd(struct shinstance *);
+void changepath(struct shinstance *, const char *);
+void deletefuncs(struct shinstance *);
+void getcmdentry(struct shinstance *, char *, struct cmdentry *);
+void addcmdentry(struct shinstance *, char *, struct cmdentry *);
+void defun(struct shinstance *, char *, union node *);
+int unsetfunc(struct shinstance *, char *);
+int typecmd(struct shinstance *, int, char **);
+void hash_special_builtins(struct shinstance *);
+
+#endif