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Diffstat (limited to 'bin/dash/src/var.h')
| -rw-r--r-- | bin/dash/src/var.h | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/bin/dash/src/var.h b/bin/dash/src/var.h deleted file mode 100644 index 1d1d87a5..00000000 --- a/bin/dash/src/var.h +++ /dev/null @@ -1,173 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * Copyright (c) 1997-2005 - * Herbert Xu <herbert@gondor.apana.org.au>. 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. - * - * @(#)var.h 8.2 (Berkeley) 5/4/95 - */ - -#include <inttypes.h> - -/* - * Shell variables. - */ - -/* flags */ -#define VEXPORT 0x01 /* variable is exported */ -#define VREADONLY 0x02 /* variable cannot be modified */ -#define VSTRFIXED 0x04 /* variable struct is statically allocated */ -#define VTEXTFIXED 0x08 /* text is statically allocated */ -#define VSTACK 0x10 /* text is allocated on the stack */ -#define VUNSET 0x20 /* the variable is not set */ -#define VNOFUNC 0x40 /* don't call the callback function */ -#define VNOSET 0x80 /* do not set variable - just readonly test */ -#define VNOSAVE 0x100 /* when text is on the heap before setvareq */ - - -struct var { - struct var *next; /* next entry in hash list */ - int flags; /* flags are defined above */ - const char *text; /* name=value */ - void (*func)(const char *); - /* function to be called when */ - /* the variable gets set/unset */ -}; - - -struct localvar { - struct localvar *next; /* next local variable in list */ - struct var *vp; /* the variable that was made local */ - int flags; /* saved flags */ - const char *text; /* saved text */ -}; - -struct localvar_list; - - -extern struct localvar *localvars; -extern struct var varinit[]; - -#if ATTY -#define vatty varinit[0] -#define vifs varinit[1] -#else -#define vifs varinit[0] -#endif -#define vmail (&vifs)[1] -#define vmpath (&vmail)[1] -#define vpath (&vmpath)[1] -#define vps1 (&vpath)[1] -#define vps2 (&vps1)[1] -#define vps4 (&vps2)[1] -#define vrps1 (&vps4)[1] -#define vrps2 (&vrps1)[1] -#define voptind (&vrps2)[1] -#ifdef WITH_LINENO -#define vlineno (&voptind)[1] -#endif -#ifndef SMALL -#ifdef WITH_LINENO -#define vterm (&vlineno)[1] -#else -#define vterm (&voptind)[1] -#endif -#define vhistsize (&vterm)[1] -#endif - -extern char defifsvar[]; -#define defifs (defifsvar + 4) -extern const char defpathvar[]; -#define defpath (defpathvar + 36) - -extern int lineno; -extern char linenovar[]; - -/* - * The following macros access the values of the above variables. - * They have to skip over the name. They return the null string - * for unset variables. - */ - -#define ifsval() (vifs.text + 4) -#define ifsset() ((vifs.flags & VUNSET) == 0) -#define mailval() (vmail.text + 5) -#define mpathval() (vmpath.text + 9) -#define pathval() (vpath.text + 5) -#define ps1val() (vps1.text + 4) -#define ps2val() (vps2.text + 4) -#define ps4val() (vps4.text + 4) -#define rps1val() (vrps1.text + 5) -#define rps2val() (vrps2.text + 5) -#define optindval() (voptind.text + 7) -#define linenoval() (vlineno.text + 7) -#ifndef SMALL -#define histsizeval() (vhistsize.text + 9) -#define termval() (vterm.text + 5) -#endif - -#if ATTY -#define attyset() ((vatty.flags & VUNSET) == 0) -#endif -#define mpathset() ((vmpath.flags & VUNSET) == 0) - -void initvar(void); -struct var *setvar(const char *name, const char *val, int flags); -intmax_t setvarint(const char *, intmax_t, int); -struct var *setvareq(char *s, int flags); -struct strlist; -char *lookupvar(const char *); -intmax_t lookupvarint(const char *); -char **listvars(int, int, char ***); -#define environment() listvars(VEXPORT, VUNSET, 0) -int showvars(const char *, int, int); -int exportcmd(int, char **); -int localcmd(int, char **); -void mklocal(char *name, int flags); -struct localvar_list *pushlocalvars(int push); -void unwindlocalvars(struct localvar_list *stop); -int unsetcmd(int, char **); -void unsetvar(const char *); -int varcmp(const char *, const char *); - -static inline int varequal(const char *a, const char *b) { - return !varcmp(a, b); -} - -/* - * Search the environment of a builtin command. - */ - -static inline char *bltinlookup(const char *name) -{ - return lookupvar(name); -} - - |