shell_cmds-198.tar.gz

[apple/shell_cmds.git] / sh / exec.h

diff --git a/sh/exec.h b/sh/exec.h
new file mode 100644 (file)
index 0000000..b57b2d5
--- /dev/null
+++ b/sh/exec.h
@@ -0,0 +1,77 @@
+/*-
+ * 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.
+ * 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) 6/8/95
+ * $FreeBSD$
+ */
+
+/* values of cmdtype */
+#define CMDUNKNOWN -1          /* no entry in table for command */
+#define CMDNORMAL 0            /* command is an executable program */
+#define CMDBUILTIN 1           /* command is a shell builtin */
+#define CMDFUNCTION 2          /* command is a shell function */
+
+/* values for typecmd_impl's third parameter */
+enum {
+       TYPECMD_SMALLV,         /* command -v */
+       TYPECMD_BIGV,           /* command -V */
+       TYPECMD_TYPE            /* type */
+};
+
+union node;
+struct cmdentry {
+       int cmdtype;
+       union param {
+               int index;
+               struct funcdef *func;
+       } u;
+       int special;
+};
+
+
+/* action to find_command() */
+#define DO_ERR         0x01    /* prints errors */
+#define DO_NOFUNC      0x02    /* don't return shell functions, for command */
+
+extern const char *pathopt;    /* set by padvance */
+extern int exerrno;            /* last exec error */
+
+void shellexec(char **, char **, const char *, int) __dead2;
+char *padvance(const char **, const char *);
+void find_command(const char *, struct cmdentry *, int, const char *);
+int find_builtin(const char *, int *);
+void hashcd(void);
+void changepath(const char *);
+void defun(const char *, union node *);
+int unsetfunc(const char *);
+int isfunc(const char *);
+int typecmd_impl(int, char **, int, const char *);
+void clearcmdentry(void);