src/initscripts/core/rc

   1 #!/bin/sh
   2 # Begin $RC_BASE/init.d/rc
   3
   4 # Get the configuration file
   5 # All changes are to occur in the config file
   6 . /etc/sysconfig/rc
   7
   8 # These 3 signals will not cause our script to exit
   9 trap "" INT QUIT TSTP
  10
  11 # Simple sanity check - rc only takes one argument
  12 if [ "${#}" -ne 1 ]; then
  13     echo "Usage: ${0} <runlevel>" >&2
  14     exit 1
  15 fi
  16
  17 # Do not use the RUNLEVEL and PREVLEVEL variables provided by init so
  18 # that they can be modified and alternate directories (S) can
  19 # be used without affecting init
  20 runlevel="${1}"
  21 prevlevel="${PREVLEVEL}"
  22
  23 # Just in case - some flavors of init don't set PREVLEVEL to 'N'
  24 if [ "${prevlevel}" = "" ]; then
  25     prevlevel="N"
  26 fi
  27
  28 if [ "${runlevel}" = "S" ]; then
  29         touch /dev/.in_sysinit
  30 fi
  31
  32 # Mount a tmpfs to store boot accounting information
  33 if [ "${runlevel}" = "S" -a "${TEMPFS_MOUNT}" != "" ]; then
  34     mount -n -t tmpfs tmpfs "${TEMPFS_MOUNT}" -o mode=600
  35 fi
  36
  37 # Provide an interactive prompt (if requested)
  38 if [ "${runlevel}" = "S" -a "${iprompt}" = "yes" ]; then
  39     # ash does not accept t and n flags for read
  40     ls -l /bin/sh | grep "/ash"
  41     if [ "${?}" -eq "0" ]; then
  42         # We are using ash
  43         echo -e -n "${WARNING}WARNING:  Either bash or zsh is required"
  44         echo -e "${WARNING} for interactive startup.\n"
  45         sleep 3
  46     else
  47         echo ""
  48         # dcol and icol are spaces before the message to center the
  49         # message on screen.
  50         dcol=$(( $(( ${COLUMNS} - ${dlen} )) / 2 ))
  51         icol=$(( $(( ${COLUMNS} - ${ilen} )) / 2 ))
  52         echo -e "\\033[${dcol}G${welcome_message}"
  53         echo -e "\\033[${icol}G${i_message}${NORMAL}"
  54         echo ""
  55         read -t "${itime}" -n 1 interactive 2>&1 > /dev/null
  56         if [ "${interactive}" = "I" -o "${interactive}" = "i" ]; then
  57             echo -n -e "${CURS_UP}"
  58             echo -e "${INFO}Interactive boot selected...${NORMAL}"
  59             echo "interactive=I" > "${TEMPFS_MOUNT}/.interactive-start"
  60         fi
  61     fi
  62 fi
  63
  64
  65 # Verify that the directory exists
  66 if [ ! -d "${RC_BASE}/rc${runlevel}.d" ]; then
  67     echo -n -e "${WARNING}${RC_BASE}/rc${runlevel}.d does not exist."
  68     echo -e "${NORMAL}"
  69     exit 1
  70 fi
  71
  72 # Source the interactive state file if it exists
  73 if [ "${runlevel}" != "S" -a -f "${TEMPFS_MOUNT}/.interactive-start" ]; then
  74     . "${TEMPFS_MOUNT}/.interactive-start"
  75 fi
  76
  77 # Prompt for interactive startup after completing S
  78 if [ "${interactive}" = "I" -a "${runlevel}" != "S" -a \
  79     "${runlevel}" != "0" -a "${runlevel}" != "6" ]; then
  80     echo -n -e "Proceed with interactive starup of runlevel "
  81     echo -n -e "${INFO}${runlevel}${NORMAL}?"
  82     echo -n -e "(${FAILURE}y${NORMAL})es/(${FAILURE}n${NORMAL})o "
  83     read -n 1 go_on
  84     echo ""
  85     if [ "${go_on}" = "n" ]; then
  86         # don't continue
  87         exit 0
  88     fi
  89 fi
  90
  91
  92 # Attempt to stop all services started in the previous runlevel,
  93 # that are stopped in this runlevel
  94 if [ "${prevlevel}" != "N" ]; then
  95     for link in $(ls -v ${RC_BASE}/rc${runlevel}.d/K* 2> /dev/null)
  96     do
  97         # Check to see if link is a valid symlink
  98         if [ ! -f ${link} ]; then
  99                 echo -e "${WARNING}${link} is not a valid symlink."
 100                 continue # go on to the next K* link
 101         fi
 102
 103         # Check to see if link is executable
 104         if [ ! -x ${link} ]; then
 105                 echo -e "${WARNING}${link} is not executable, skipping."
 106                 continue # go on to the next K* link
 107         fi
 108
 109         script=${link#$RC_BASE/rc$runlevel.d/K[0-9][0-9]}
 110         prev_start=$RC_BASE/rc$prevlevel.d/S[0-9][0-9]$script
 111         S_start=$RC_BASE/rcS.d/S[0-9][0-9]$script
 112
 113         if [ "${runlevel}" != "0" -a "${runlevel}" != "6" ]; then
 114             if [ ! -f ${prev_start} ] && [ ! -f ${S_start} ]; then
 115                 echo -e -n "${WARNING}WARNING:\n\n${link} can't be"
 116                 echo -e "${WARNING} executed because it was not"
 117                 echo -e -n "${WARNING} not started in the previous"
 118                 echo -e "${WARNING} runlevel (${prevlevel})."
 119                 echo -e "${NORMAL}"
 120                 continue
 121             fi
 122         fi
 123         ${link} stop
 124         error_value=${?}
 125
 126         if [ "${error_value}" != "0" ]; then
 127             print_error_msg
 128         fi
 129     done
 130 fi
 131
 132 # Start all functions in this runlevel if they weren't started in
 133 # the previous runlevel
 134 for link in $(ls -v ${RC_BASE}/rc${runlevel}.d/S* 2> /dev/null)
 135 do
 136     if [ "${prevlevel}" != "N" ]; then
 137         script=${link#$RC_BASE/rc$runlevel.d/S[0-9][0-9]}
 138         stop=$RC_BASE/rc$runlevel.d/K[0-9][0-9]$script
 139         prev_start=$RC_BASE/rc$prevlevel.d/S[0-9][0-9]$script
 140
 141         [ -f ${prev_start} ] && [ ! -f ${stop} ] && continue
 142     fi
 143
 144     # Check to see if link is a valid symlink
 145     if [ ! -f ${link} ]; then
 146         echo -e "${WARNING}${link} is not a valid symlink."
 147         continue # go on to the next K* link
 148     fi
 149
 150     # Check to see if link is executable
 151     if [ ! -x ${link} ]; then
 152         echo -e "${WARNING}${link} is not executable, skipping."
 153         continue # go on to the next K* link
 154     fi
 155
 156     case ${runlevel} in
 157         0|6)
 158             ${link} stop
 159         ;;
 160
 161         *)
 162             if [ "${interactive}" = "I" -o "${interactive}" = "i" ]; then
 163                 echo -e -n "${WARNING}Start ${INFO}${link} ${WARNING}?"
 164                 echo -e -n "${NORMAL}(${FAILURE}y${NORMAL})es/(${FAILURE}n${NORMAL})o "
 165                 read -n 1 startit 2>&1 > /dev/null
 166                 echo ""
 167                 if [ "${startit}" = "y" -o "${startit}" = "Y" ]; then
 168                     ${link} start
 169                 else
 170                     echo -e -n "${WARNING}Not starting ${INFO}${link}"
 171                     echo -e "${WARNING}.${NORMAL}\n"
 172                 fi
 173             else
 174                 ${link} start
 175             fi
 176         ;;
 177     esac
 178     error_value=${?}
 179
 180     if [ "${error_value}" -gt "1" ]; then
 181         print_error_msg
 182     fi
 183 done
 184
 185 rm -f /dev/.in_sysinit
 186
 187 # Strip apply time to the logs, strip out any color codes and dump
 188 # the log to /var/log/boot.log
 189 if [ -f "${TEMPFS_MOUNT}/.bootlog" -a "${runlevel}" != "S" ]; then
 190     # Remove any color codes from the temp log file
 191     sed -i 's@\\033\[[0-9];[0-9][0-9]m@@g' "${TEMPFS_MOUNT}/.bootlog"
 192     #Fix the time and hostname
 193     BTIMESPEC=$(echo `date -u +"%b %d %T"` `hostname`)
 194     sed -i "s@^bootlog:@${BTIMESPEC} bootlog:@" "${TEMPFS_MOUNT}/.bootlog"
 195     # Don't try and write in 0 and 6, this is a 'boot' log
 196     if [ "${runlevel}" != "0" -a "${runlevel}" != "6" ]; then
 197         cat "${TEMPFS_MOUNT}/.bootlog" >> /var/log/boot.log
 198         rm -f "${TEMPFS_MOUNT}/.bootlog"
 199     fi
 200 fi
 201
 202 # End $RC_BASE/init.d/rc