cde/programs/dtksh/ksh93/src/cmd/ksh93/bltins/getopts.c

   1 /*
   2  * CDE - Common Desktop Environment
   3  *
   4  * Copyright (c) 1993-2012, The Open Group. All rights reserved.
   5  *
   6  * These libraries and programs are free software; you can
   7  * redistribute them and/or modify them under the terms of the GNU
   8  * Lesser General Public License as published by the Free Software
   9  * Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * These libraries and programs are distributed in the hope that
  13  * they will be useful, but WITHOUT ANY WARRANTY; without even the
  14  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15  * PURPOSE. See the GNU Lesser General Public License for more
  16  * details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with these libraries and programs; if not, write
  20  * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
  21  * Floor, Boston, MA 02110-1301 USA
  22  */
  23 /* $XConsortium: getopts.c /main/3 1995/11/01 16:28:23 rswiston $ */
  24 /***************************************************************
  25 *                                                              *
  26 *                      AT&T - PROPRIETARY                      *
  27 *                                                              *
  28 *        THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF        *
  29 *                    AT&T BELL LABORATORIES                    *
  30 *         AND IS NOT TO BE DISCLOSED OR USED EXCEPT IN         *
  31 *            ACCORDANCE WITH APPLICABLE AGREEMENTS             *
  32 *                                                              *
  33 *                Copyright (c) 1995 AT&T Corp.                 *
  34 *              Unpublished & Not for Publication               *
  35 *                     All Rights Reserved                      *
  36 *                                                              *
  37 *       The copyright notice above does not evidence any       *
  38 *      actual or intended publication of such source code      *
  39 *                                                              *
  40 *               This software was created by the               *
  41 *           Advanced Software Technology Department            *
  42 *                    AT&T Bell Laboratories                    *
  43 *                                                              *
  44 *               For further information contact                *
  45 *                    {research,attmail}!dgk                    *
  46 *                                                              *
  47 ***************************************************************/
  48
  49 /* : : generated by proto : : */
  50
  51 #if !defined(__PROTO__)
  52 #if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
  53 #if defined(__cplusplus)
  54 #define __MANGLE__      "C"
  55 #else
  56 #define __MANGLE__
  57 #endif
  58 #define __STDARG__
  59 #define __PROTO__(x)    x
  60 #define __OTORP__(x)
  61 #define __PARAM__(n,o)  n
  62 #if !defined(__STDC__) && !defined(__cplusplus)
  63 #if !defined(c_plusplus)
  64 #define const
  65 #endif
  66 #define signed
  67 #define void            int
  68 #define volatile
  69 #define __V_            char
  70 #else
  71 #define __V_            void
  72 #endif
  73 #else
  74 #define __PROTO__(x)    ()
  75 #define __OTORP__(x)    x
  76 #define __PARAM__(n,o)  o
  77 #define __MANGLE__
  78 #define __V_            char
  79 #define const
  80 #define signed
  81 #define void            int
  82 #define volatile
  83 #endif
  84 #if defined(__cplusplus) || defined(c_plusplus)
  85 #define __VARARG__      ...
  86 #else
  87 #define __VARARG__
  88 #endif
  89 #if defined(__STDARG__)
  90 #define __VA_START__(p,a)       va_start(p,a)
  91 #else
  92 #define __VA_START__(p,a)       va_start(p)
  93 #endif
  94 #endif
  95 #include        "defs.h"
  96 #include        "variables.h"
  97 #include        <error.h>
  98 #include        <nval.h>
  99 #include        "builtins.h"
 100
 101 int     b_getopts __PARAM__((int argc,char *argv[],__V_ *extra), (argc, argv, extra)) __OTORP__(int argc;char *argv[];__V_ *extra;){
 102         char *options=error_info.context->id;
 103         Namval_t *np;
 104         int flag, mode, r=0;
 105         static char value[2], key[2];
 106         NOT_USED(extra);
 107         while((flag = optget(argv,sh_optgetopts))) switch(flag)
 108         {
 109             case 'a':
 110                 options = opt_arg;
 111                 break;
 112             case ':':
 113                 error(2, opt_arg);
 114                 break;
 115             case '?':
 116                 error(ERROR_usage(2), opt_arg);
 117                 break;
 118         }
 119         argv += opt_index;
 120         argc -= opt_index;
 121         if(error_info.errors || argc<2)
 122                 error(ERROR_usage(2),optusage((char*)0));
 123         error_info.context->flags |= ERROR_SILENT;
 124         error_info.id = options;
 125         options = argv[0];
 126         np = nv_open(argv[1],sh.var_tree,NV_NOASSIGN|NV_VARNAME);
 127         if(argc>2)
 128         {
 129                 argv +=1;
 130                 argc -=1;
 131         }
 132         else
 133         {
 134                 argv = sh.st.dolv;
 135                 argc = sh.st.dolc;
 136         }
 137         opt_index = sh.st.optindex;
 138         opt_char = sh.st.optchar;
 139         if(mode= (*options==':'))
 140                 options++;
 141         switch(opt_index<=argc?(opt_num= LONG_MIN,flag=optget(argv,options)):0)
 142         {
 143             case '?':
 144                 error(ERROR_usage(0),opt_arg);
 145                 r = 2;
 146                 *(options = value) = flag;
 147                 break;
 148             case ':':
 149                 key[0] = opt_option[1];
 150                 if(strmatch(opt_arg,"*unknown*"))
 151                         flag = '?';
 152                 if(mode)
 153                         opt_arg = key;
 154                 else
 155                 {
 156                         error(2, opt_arg);
 157                         opt_arg = 0;
 158                         flag = '?';
 159                 }
 160                 *(options = value) = flag;
 161                 sh.st.opterror = 1;
 162                 break;
 163             case 0:
 164                 if(sh.st.opterror)
 165                 {
 166                         char *com[2];
 167                         com[0] = "-?";
 168                         com[1] = 0;
 169                         flag = opt_index;
 170                         opt_index = 0;
 171                         optget(com,options);
 172                         opt_index = flag;
 173                         if(!mode && strchr(options,' '))
 174                                 error(ERROR_usage(0),optusage((char*)0));
 175                 }
 176                 opt_arg = 0;
 177                 options = value;
 178                 *options = '?';
 179                 r=1;
 180                 opt_char = 0;
 181                 break;
 182             default:
 183                 options = opt_option + (*opt_option!='+');
 184         }
 185         error_info.context->flags &= ~ERROR_SILENT;
 186         sh.st.optindex = opt_index;
 187         sh.st.optchar = opt_char;
 188         nv_putval(np, options, 0);
 189         nv_close(np);
 190         np = nv_search((char*)OPTARGNOD,sh.var_tree,NV_ADD|HASH_BUCKET|HASH_NOSCOPE);
 191         if(opt_num != LONG_MIN)
 192         {
 193                 double d = opt_num;
 194                 nv_putval(np, (char*)&d, NV_INTEGER|NV_RDONLY);
 195         }
 196         else
 197                 nv_putval(np, opt_arg, NV_RDONLY);
 198         return(r);
 199 }
 200