src/log/pagsh.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #include <afsconfig.h>
  11 #include <afs/param.h>
  12
  13 #include <roken.h>
  14
  15 #ifdef  AFS_AIX32_ENV
  16 # ifdef AFS_AIX51_ENV
  17 #  include <sys/cred.h>
  18 #  ifdef HAVE_SYS_PAG_H
  19 #   include <sys/pag.h>
  20 #  endif
  21 # endif
  22 #endif
  23
  24 #include <limits.h>
  25 #include <rx/rx.h>
  26 #include <afs/auth.h>
  27 #include <afs/sys_prototypes.h>
  28
  29 #include "AFS_component_version_number.c"
  30
  31 int
  32 main(int argc, char *argv[])
  33 {
  34     struct passwd *pwe;
  35     int uid;
  36     char *shell = "/bin/sh";
  37
  38 #ifdef  AFS_AIX32_ENV
  39     /*
  40      * The following signal action for AIX is necessary so that in case of a
  41      * crash (i.e. core is generated) we can include the user's data section
  42      * in the core dump. Unfortunately, by default, only a partial core is
  43      * generated which, in many cases, isn't too useful.
  44      */
  45     struct sigaction nsa;
  46
  47     sigemptyset(&nsa.sa_mask);
  48     nsa.sa_handler = SIG_DFL;
  49     nsa.sa_flags = SA_FULLDUMP;
  50     sigaction(SIGSEGV, &nsa, NULL);
  51 #endif
  52     uid = getuid();
  53     pwe = getpwuid(uid);
  54     if (pwe == 0) {
  55         fprintf(stderr, "Intruder alert.\n");
  56     } else {
  57 /*              shell = pwe->pw_shell; */
  58     }
  59     if (setpag() == -1) {
  60         perror("setpag");
  61     }
  62 #ifdef AFS_KERBEROS_ENV
  63     ktc_newpag();
  64 #endif
  65     argv[0] = shell;
  66     execvp(shell, argv);
  67     perror(shell);
  68     fprintf(stderr, "No shell\n");
  69     exit(1);
  70 }