ibcs2_socksys.c

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    1 /*
    2  * Copyright (c) 1994, 1995 Scott Bartram
    3  * Copyright (c) 1994 Arne H Juul
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. The name of the author may not be used to endorse or promote products
   12  *    derived from this software without specific prior written permission
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   24  */
   25 
   26 #include <sys/param.h>
   27 #include <sys/systm.h>
   28 #include <sys/sysproto.h>
   29 #include <sys/kernel.h>
   30 #include <sys/sysctl.h>
   31 
   32 #include <i386/ibcs2/ibcs2_socksys.h>
   33 #include <i386/ibcs2/ibcs2_util.h>
   34 
   35 /* Local structures */
   36 struct getipdomainname_args {
   37         char    *ipdomainname;
   38         int     len;
   39 };
   40 
   41 struct setipdomainname_args {
   42         char    *ipdomainname;
   43         int     len;
   44 };
   45 
   46 /* Local prototypes */
   47 static int ibcs2_getipdomainname __P((struct proc *,
   48                                       struct getipdomainname_args *));
   49 static int ibcs2_setipdomainname __P((struct proc *,
   50                                       struct setipdomainname_args *));
   51 
   52 /*
   53  * iBCS2 socksys calls.
   54  */
   55 
   56 int
   57 ibcs2_socksys(p, uap)
   58         register struct proc *p;
   59         register struct ibcs2_socksys_args *uap;
   60 {
   61         int error;
   62         int realargs[7]; /* 1 for command, 6 for recvfrom */
   63         void *passargs;
   64 
   65         /*
   66          * SOCKET should only be legal on /dev/socksys.
   67          * GETIPDOMAINNAME should only be legal on /dev/socksys ?
   68          * The others are (and should be) only legal on sockets.
   69          */
   70 
   71         if (error = copyin(uap->argsp, (caddr_t)realargs, sizeof(realargs)))
   72                 return error;
   73         DPRINTF(("ibcs2_socksys: %08x %08x %08x %08x %08x %08x %08x\n",
   74                realargs[0], realargs[1], realargs[2], realargs[3], 
   75                realargs[4], realargs[5], realargs[6]));
   76 
   77         passargs = (void *)(realargs + 1);
   78         switch (realargs[0]) {
   79         case SOCKSYS_ACCEPT:
   80                 return accept(p, passargs);
   81         case SOCKSYS_BIND:
   82                 return bind(p, passargs);
   83         case SOCKSYS_CONNECT:
   84                 return connect(p, passargs);
   85         case SOCKSYS_GETPEERNAME:
   86                 return getpeername(p, passargs);
   87         case SOCKSYS_GETSOCKNAME:
   88                 return getsockname(p, passargs);
   89         case SOCKSYS_GETSOCKOPT:
   90                 return getsockopt(p, passargs);
   91         case SOCKSYS_LISTEN:
   92                 return listen(p, passargs);
   93         case SOCKSYS_RECV:
   94                 realargs[5] = realargs[6] = 0;
   95                 /* FALLTHROUGH */
   96         case SOCKSYS_RECVFROM:
   97                 return recvfrom(p, passargs);
   98         case SOCKSYS_SEND:
   99                 realargs[5] = realargs[6] = 0;
  100                 /* FALLTHROUGH */
  101         case SOCKSYS_SENDTO:
  102                 return sendto(p, passargs);
  103         case SOCKSYS_SETSOCKOPT:
  104                 return setsockopt(p, passargs);
  105         case SOCKSYS_SHUTDOWN:
  106                 return shutdown(p, passargs);
  107         case SOCKSYS_SOCKET:
  108                 return socket(p, passargs);
  109         case SOCKSYS_SELECT:
  110                 return select(p, passargs);
  111         case SOCKSYS_GETIPDOMAIN:
  112                 return ibcs2_getipdomainname(p, passargs);
  113         case SOCKSYS_SETIPDOMAIN:
  114                 return ibcs2_setipdomainname(p, passargs);
  115         case SOCKSYS_ADJTIME:
  116                 return adjtime(p, passargs);
  117         case SOCKSYS_SETREUID:
  118                 return setreuid(p, passargs);
  119         case SOCKSYS_SETREGID:
  120                 return setregid(p, passargs);
  121         case SOCKSYS_GETTIME:
  122                 return gettimeofday(p, passargs);
  123         case SOCKSYS_SETTIME:
  124                 return settimeofday(p, passargs);
  125         case SOCKSYS_GETITIMER:
  126                 return getitimer(p, passargs);
  127         case SOCKSYS_SETITIMER:
  128                 return setitimer(p, passargs);
  129 
  130         default:
  131                 printf("socksys unknown %08x %08x %08x %08x %08x %08x %08x\n",
  132                        realargs[0], realargs[1], realargs[2], realargs[3], 
  133                        realargs[4], realargs[5], realargs[6]);
  134                 return EINVAL;
  135         }
  136         /* NOTREACHED */
  137 }
  138 
  139 /* ARGSUSED */
  140 static int
  141 ibcs2_getipdomainname(p, uap)
  142         struct proc *p;
  143         struct getipdomainname_args *uap;
  144 {
  145         char hname[MAXHOSTNAMELEN], *dptr;
  146         int len;
  147 
  148         /* Get the domain name */
  149         snprintf(hname, sizeof(hname), "%s", hostname);
  150         dptr = index(hname, '.');
  151         if ( dptr )
  152                 dptr++;
  153         else
  154                 /* Make it effectively an empty string */
  155                 dptr = hname + strlen(hname);
  156         
  157         len = strlen(dptr) + 1;
  158         if ((u_int)uap->len > len + 1)
  159                 uap->len = len + 1;
  160         return (copyout((caddr_t)dptr, (caddr_t)uap->ipdomainname, uap->len));
  161 }
  162 
  163 /* ARGSUSED */
  164 static int
  165 ibcs2_setipdomainname(p, uap)
  166         struct proc *p;
  167         struct setipdomainname_args *uap;
  168 {
  169         char hname[MAXHOSTNAMELEN], *ptr;
  170         int error, sctl[2], hlen;
  171 
  172         if ((error = suser(p->p_ucred, &p->p_acflag)))
  173                 return (error);
  174 
  175         /* W/out a hostname a domain-name is nonsense */
  176         if ( strlen(hostname) == 0 )
  177                 return EINVAL;
  178 
  179         /* Get the host's unqualified name (strip off the domain) */
  180         snprintf(hname, sizeof(hname), "%s", hostname);
  181         ptr = index(hname, '.');
  182         if ( ptr != NULL ) {
  183                 ptr++;
  184                 *ptr = '\0';
  185         } else
  186                 strcat(hname, ".");
  187 
  188         /* Set ptr to the end of the string so we can append to it */
  189         hlen = strlen(hname);
  190         ptr = hname + hlen;
  191         if ((u_int)uap->len > (sizeof (hname) - hlen - 1))
  192                 return EINVAL;
  193 
  194         /* Append the ipdomain to the end */
  195         error = copyin((caddr_t)uap->ipdomainname, ptr, uap->len);
  196         if (error)
  197                 return (error);
  198 
  199         /* 'sethostname' with the new information */
  200         sctl[0] = CTL_KERN;
  201         sctl[1] = KERN_HOSTNAME;
  202         hlen = strlen(hname) + 1;
  203         return (kernel_sysctl(p, sctl, 2, 0, 0, hname, hlen, 0));
  204 }

Cache object: 6a5b348772471f4cf1d41b74e0318436

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FreeBSD/Linux Kernel Cross Reference sys/i386/ibcs2/ibcs2_socksys.c

FreeBSD/Linux Kernel Cross Reference
sys/i386/ibcs2/ibcs2_socksys.c