cde/programs/dtksh/ksh93/src/cmd/ksh93/bltins/umask.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 librararies 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: umask.c /main/3 1995/11/01 16:31:02 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  28 *        THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF        *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  34 *              Unpublished & Not for Publication               *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        <ast.h>
  96 #include        <sfio.h>
  97 #include        <error.h>
  98 #include        <ctype.h>
  99 #include        <ls.h>
 100 #include        <shell.h>
 101 #include        "builtins.h"
 102
 103 int     b_umask __PARAM__((int argc,char *argv[],__V_ *extra), (argc, argv, extra)) __OTORP__(int argc;char *argv[];__V_ *extra;){
 104         register char *mask;
 105         register int flag = 0, sflag = 0;
 106         NOT_USED(extra);
 107         while((argc = optget(argv,sh_optumask))) switch(argc)
 108         {
 109                 case 'S':
 110                         sflag++;
 111                         break;
 112                 case ':':
 113                         error(2, opt_arg);
 114                         break;
 115                 case '?':
 116                         error(ERROR_usage(2), opt_arg);
 117                         break;
 118         }
 119         if(error_info.errors)
 120                 error(ERROR_usage(2),optusage((char*)0));
 121         argv += opt_index;
 122         if(mask = *argv)
 123         {
 124                 register int c;
 125                 if(isdigit(*mask))
 126                 {
 127                         while(c = *mask++)
 128                         {
 129                                 if (c>='0' && c<='7')
 130                                         flag = (flag<<3) + (c-'0');
 131                                 else
 132                                         error(ERROR_exit(1),e_number,*argv);
 133                         }
 134                 }
 135                 else
 136                 {
 137                         char *cp = mask;
 138                         flag = umask(0);
 139                         c = strperm(cp,&cp,~flag);
 140                         if(*cp)
 141                         {
 142                                 umask(flag);
 143                                 error(ERROR_exit(1),e_format,mask);
 144                         }
 145                         flag = (~c&0777);
 146                 }
 147                 umask(flag);
 148         }
 149         else
 150         {
 151                 umask(flag=umask(0));
 152                 if(sflag)
 153                         sfprintf(sfstdout,"%s\n",fmtperm(~flag&0777));
 154                 else
 155                         sfprintf(sfstdout,"%0#4o\n",flag);
 156         }
 157         return(0);
 158 }
 159