userapps/opensource/busybox/procps/ps.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Mini ps implementation(s) for busybox
   4  *
   5  * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  19  * Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <dirent.h>
  26 #include <errno.h>
  27 #include <fcntl.h>
  28 #include <ctype.h>
  29 #include <string.h>
  30 #include <termios.h>
  31 #include <sys/ioctl.h>
  32 #include "busybox.h"
  33 #ifdef CONFIG_SELINUX
  34 #include <fs_secure.h>
  35 #include <ss.h>
  36 #include <flask_util.h>          /* for is_flask_enabled() */
  37 #endif
  38
  39 static const int TERMINAL_WIDTH = 79;      /* not 80 in case terminal has linefold bug */
  40 //brcm
  41 extern void bcmHidePassword(char *command);
  42
  43 extern int ps_main(int argc, char **argv)
  44 {
  45         procps_status_t * p;
  46         int i, len;
  47         int terminal_width = TERMINAL_WIDTH;
  48
  49 #ifdef CONFIG_SELINUX
  50         int use_selinux = 0;
  51         security_id_t sid;
  52         if(is_flask_enabled() && argv[1] && !strcmp(argv[1], "-c") )
  53                 use_selinux = 1;
  54 #endif
  55
  56         get_terminal_width_height(0, &terminal_width, NULL);
  57         /* Go one less... */
  58         terminal_width--;
  59
  60 #ifdef CONFIG_SELINUX
  61         if(use_selinux)
  62                 printf("  PID Context                          Stat Command\n");
  63         else
  64 #endif
  65         printf("  PID  Uid     VmSize Stat Command\n");
  66 #ifdef CONFIG_SELINUX
  67         while ((p = procps_scan(1, use_selinux, &sid)) != 0) {
  68 #else
  69         while ((p = procps_scan(1)) != 0) {
  70 #endif
  71                 char *namecmd = p->cmd;
  72
  73 #ifdef CONFIG_SELINUX
  74                 if(use_selinux)
  75                 {
  76                         char sbuf[128];
  77                         len = sizeof(sbuf);
  78                         if(security_sid_to_context(sid, (security_context_t)&sbuf, &len))
  79                                 strcpy(sbuf, "unknown");
  80
  81                         len = printf("%5d %-32s %s ", p->pid, sbuf, p->state);
  82                 }
  83                 else
  84 #endif
  85                 if(p->rss == 0)
  86                         len = printf("%5d %-8s        %s ", p->pid, p->user, p->state);
  87                 else
  88                         len = printf("%5d %-8s %6ld %s ", p->pid, p->user, p->rss, p->state);
  89                 i = terminal_width-len;
  90
  91                 // brcm begin
  92                 if ( strncmp(p->short_cmd,"telnetd",7)==0 ||
  93                          strncmp(p->short_cmd,"httpd",5)==0 ||
  94                          strncmp(p->short_cmd,"sshd",4)==0 ||
  95                          strncmp(p->short_cmd,"tr69c",5)==0 ||
  96                          strncmp(p->short_cmd,"snmp",4)==0) {
  97                                 printf("%s\n",p->short_cmd);
  98                 } else {
  99                         if(namecmd != 0 && namecmd[0] != 0) {
 100                                 if(i < 0)
 101                                         i = 0;
 102                                 if(strlen(namecmd) > i)
 103                                         namecmd[i] = 0;
 104                                 //brcm begin
 105                                 if ( strncmp(p->short_cmd,"pppd",4)==0)
 106                                   bcmHidePassword(namecmd);
 107                                 //brcm end
 108                                 printf("%s\n", namecmd);
 109                         } else {
 110                                 namecmd = p->short_cmd;
 111                                 if(i < 2)
 112                                         i = 2;
 113                                 if(strlen(namecmd) > (i-2))
 114                                         namecmd[i-2] = 0;
 115                                 printf("[%s]\n", namecmd);
 116                         }
 117                 }
 118                 // brcm end
 119                 free(p->cmd);
 120         }
 121         return EXIT_SUCCESS;
 122 }
 123