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       1                 :            : /*
       2                 :            :  * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
       3                 :            :  * All rights reserved.
       4                 :            :  *
       5                 :            :  * Redistribution and use in source and binary forms, with or without
       6                 :            :  * modification, are permitted provided that the following conditions
       7                 :            :  * are met:
       8                 :            :  * 1. Redistributions of source code must retain the above copyright
       9                 :            :  *    notice, this list of conditions and the following disclaimer.
      10                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      11                 :            :  *    notice, this list of conditions and the following disclaimer in the
      12                 :            :  *    documentation and/or other materials provided with the distribution.
      13                 :            :  * 3. The name of the author may not be used to endorse or promote products
      14                 :            :  *    derived from this software without specific prior written permission.
      15                 :            :  *
      16                 :            :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      17                 :            :  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      18                 :            :  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      19                 :            :  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
      20                 :            :  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      21                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      22                 :            :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      23                 :            :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      24                 :            :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      25                 :            :  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      26                 :            :  */
      27                 :            : 
      28                 :            : #include "defs.h"
      29                 :            : #include <linux/personality.h>
      30                 :            : #include "xlat/personality_types.h"
      31                 :            : #include "xlat/personality_flags.h"
      32                 :            : 
      33                 :            : 
      34                 :        180 : SYS_FUNC(personality)
      35                 :            : {
      36                 :            :         unsigned int pers;
      37                 :            : 
      38         [ +  + ]:        180 :         if (entering(tcp)) {
      39                 :         90 :                 pers = tcp->u_arg[0];
      40         [ +  + ]:         90 :                 if (0xffffffff == pers) {
      41                 :         12 :                         tprints("0xffffffff");
      42                 :            :                 } else {
      43                 :         78 :                         printxval(personality_types, pers & PER_MASK, "PER_???");
      44                 :         78 :                         pers &= ~PER_MASK;
      45         [ +  + ]:         78 :                         if (pers) {
      46                 :         54 :                                 tprints("|");
      47                 :         54 :                                 printflags(personality_flags, pers, NULL);
      48                 :            :                         }
      49                 :            :                 }
      50                 :         90 :                 return 0;
      51                 :            :         }
      52                 :            : 
      53         [ -  + ]:         90 :         if (syserror(tcp))
      54                 :          0 :                 return 0;
      55                 :            : 
      56                 :         90 :         pers = tcp->u_rval;
      57                 :         90 :         const char *type = xlookup(personality_types, pers & PER_MASK);
      58                 :            :         char *p;
      59                 :            :         static char outstr[1024];
      60         [ +  + ]:         90 :         if (type)
      61                 :         66 :                 p = stpcpy(outstr, type);
      62                 :            :         else
      63                 :         24 :                 p = outstr + sprintf(outstr, "%#x /* %s */", pers & PER_MASK, "PER_???");
      64                 :         90 :         pers &= ~PER_MASK;
      65         [ +  + ]:         90 :         if (pers)
      66                 :         54 :                 strcpy(p, sprintflags("|", personality_flags, pers));
      67                 :         90 :         tcp->auxstr = outstr;
      68                 :         90 :         return RVAL_HEX | RVAL_STR;
      69                 :            : }