9302f8ef1a
variable (with its current value set at 20160401) as discussed on
current-users and tech-userlevel. This also includes the necessary
support to implement it properly (particularly the unexportable
part) and adds options to the export command to support unexportable
variables. Also implement the "posix" option (no single letter
equivalent) which gets its default value from whether or not
POSIXLY_CORRECT is set in the environment when the shell starts
(but can be changed just like any other option using -o and +o on
the command line, or the set builtin command.) While there, fix
all uses of options so it is possible to have options that have a
short (one char) name, and no long name, just as it has been possible
to have options with a long name and no short name, though there
are currently none (with no long name). For now, the only use of
the posix option is to control whether ${ENV} is read at startup
by a non-interactive shell, so changing it with set is not usful
- that might change in the future. (from kre@)
139 lines
5.3 KiB
C
139 lines
5.3 KiB
C
/* $NetBSD: options.h,v 1.25 2016/03/31 16:16:35 christos 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.
|
|
*
|
|
* @(#)options.h 8.2 (Berkeley) 5/4/95
|
|
*/
|
|
|
|
struct shparam {
|
|
int nparam; /* # of positional parameters (without $0) */
|
|
unsigned char malloc; /* if parameter list dynamically allocated */
|
|
unsigned char reset; /* if getopts has been reset */
|
|
char **p; /* parameter list */
|
|
char **optnext; /* next parameter to be processed by getopts */
|
|
char *optptr; /* used by getopts */
|
|
};
|
|
|
|
|
|
struct optent {
|
|
const char *name; /* for set -o <name> */
|
|
const char letter; /* set [+/-]<letter> and $- */
|
|
const char opt_set; /* mutually exclusive option set */
|
|
unsigned char val; /* value of <letter>flag */
|
|
};
|
|
|
|
/* Those marked [U] are required by posix, but have no effect! */
|
|
|
|
#ifdef DEFINE_OPTIONS
|
|
#define DEF_OPTS(name, letter, opt_set) {name, letter, opt_set, 0},
|
|
struct optent optlist[] = {
|
|
#else
|
|
#define DEF_OPTS(name, letter, opt_set)
|
|
#endif
|
|
#define DEF_OPT(name,letter) DEF_OPTS(name, letter, 0)
|
|
|
|
DEF_OPT( "errexit", 'e' ) /* exit on error */
|
|
#define eflag optlist[0].val
|
|
DEF_OPT( "noglob", 'f' ) /* no pathname expansion */
|
|
#define fflag optlist[1].val
|
|
DEF_OPT( "ignoreeof", 'I' ) /* do not exit on EOF */
|
|
#define Iflag optlist[2].val
|
|
DEF_OPT( "interactive",'i' ) /* interactive shell */
|
|
#define iflag optlist[3].val
|
|
DEF_OPT( "monitor", 'm' ) /* job control */
|
|
#define mflag optlist[4].val
|
|
DEF_OPT( "noexec", 'n' ) /* do not exec commands */
|
|
#define nflag optlist[5].val
|
|
DEF_OPT( "stdin", 's' ) /* read from stdin */
|
|
#define sflag optlist[6].val
|
|
DEF_OPT( "xtrace", 'x' ) /* trace after expansion */
|
|
#define xflag optlist[7].val
|
|
DEF_OPT( "verbose", 'v' ) /* trace read input */
|
|
#define vflag optlist[8].val
|
|
DEF_OPTS( "vi", 'V', 'V' ) /* vi style editing */
|
|
#define Vflag optlist[9].val
|
|
DEF_OPTS( "emacs", 'E', 'V' ) /* emacs style editing */
|
|
#define Eflag optlist[10].val
|
|
DEF_OPT( "noclobber", 'C' ) /* do not overwrite files with > */
|
|
#define Cflag optlist[11].val
|
|
DEF_OPT( "allexport", 'a' ) /* export all variables */
|
|
#define aflag optlist[12].val
|
|
DEF_OPT( "notify", 'b' ) /* [U] report completion of background jobs */
|
|
#define bflag optlist[13].val
|
|
DEF_OPT( "nounset", 'u' ) /* error expansion of unset variables */
|
|
#define uflag optlist[14].val
|
|
DEF_OPT( "quietprofile", 'q' )
|
|
#define qflag optlist[15].val
|
|
DEF_OPT( "nolog", 0 ) /* [U] no functon defs in command history */
|
|
#define nolog optlist[16].val
|
|
DEF_OPT( "cdprint", 0 ) /* always print result of cd */
|
|
#define cdprint optlist[17].val
|
|
DEF_OPT( "tabcomplete", 0 ) /* <tab> causes filename expansion */
|
|
#define tabcomplete optlist[18].val
|
|
DEF_OPT( "fork", 'F' ) /* use fork(2) instead of vfork(2) */
|
|
#define usefork optlist[19].val
|
|
DEF_OPT( "nopriv", 'p' ) /* preserve privs even if set{u,g}id */
|
|
#define pflag optlist[20].val
|
|
DEF_OPT( "trackall", 'h' ) /* [U] locate cmds in funcs when defined */
|
|
#define hflag optlist[21].val
|
|
DEF_OPT( "posix", 0 ) /* operate in posix mode */
|
|
#define posix optlist[22].val
|
|
#ifdef DEBUG
|
|
DEF_OPT( "debug", 0 ) /* enable debug prints */
|
|
#define debug optlist[23].val
|
|
#endif
|
|
|
|
#ifdef DEFINE_OPTIONS
|
|
{ 0, 0, 0, 0 },
|
|
};
|
|
#define NOPTS (sizeof optlist / sizeof optlist[0] - 1)
|
|
int sizeof_optlist = sizeof optlist;
|
|
#else
|
|
extern struct optent optlist[];
|
|
extern int sizeof_optlist;
|
|
#endif
|
|
|
|
|
|
extern char *minusc; /* argument to -c option */
|
|
extern char *arg0; /* $0 */
|
|
extern struct shparam shellparam; /* $@ */
|
|
extern char **argptr; /* argument list for builtin commands */
|
|
extern char *optionarg; /* set by nextopt */
|
|
extern char *optptr; /* used by nextopt */
|
|
|
|
void procargs(int, char **);
|
|
void optschanged(void);
|
|
void setparam(char **);
|
|
void freeparam(volatile struct shparam *);
|
|
int nextopt(const char *);
|
|
void getoptsreset(const char *);
|