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 # Mount a tmpfs to store boot accounting information
  29 if [ "${runlevel}" = "S" -a "${TEMPFS_MOUNT}" != "" ]; then
  30     mount -n -t tmpfs tmpfs "${TEMPFS_MOUNT}" -o mode=600
  31 fi
  32
  33 # Provide an interactive prompt (if requested)
  34 if [ "${runlevel}" = "S" -a "${iprompt}" = "yes" ]; then
  35     # ash does not accept t and n flags for read
  36     ls -l /bin/sh | grep "/ash"
  37     if [ "${?}" -eq "0" ]; then
  38         # We are using ash
  39         echo -e -n "${WARNING}WARNING:  Either bash or zsh is required"
  40         echo -e "${WARNING} for interactive startup.\n"
  41         sleep 3
  42     else
  43         echo ""
  44         # dcol and icol are spaces before the message to center the
  45         # message on screen.
  46         dcol=$(( $(( ${COLUMNS} - ${dlen} )) / 2 ))
  47         icol=$(( $(( ${COLUMNS} - ${ilen} )) / 2 ))
  48         echo -e "\\033[${dcol}G${welcome_message}"
  49         echo -e "\\033[${icol}G${i_message}${NORMAL}"
  50         echo ""
  51         read -t "${itime}" -n 1 interactive 2>&1 > /dev/null
  52         if [ "${interactive}" = "I" -o "${interactive}" = "i" ]; then
  53             echo -n -e "${CURS_UP}"
  54             echo -e "${INFO}Interactive boot selected...${NORMAL}"
  55             echo "interactive=I" > "${TEMPFS_MOUNT}/.interactive-start"
  56         fi
  57     fi
  58 fi
  59
  60
  61 # Verify that the directory exists
  62 if [ ! -d "${RC_BASE}/rc${runlevel}.d" ]; then
  63     echo -n -e "${WARNING}${RC_BASE}/rc${runlevel}.d does not exist."
  64     echo -e "${NORMAL}"
  65     exit 1
  66 fi
  67
  68 # Source the interactive state file if it exists
  69 if [ "${runlevel}" != "S" -a -f "${TEMPFS_MOUNT}/.interactive-start" ]; then
  70     . "${TEMPFS_MOUNT}/.interactive-start"
  71 fi
  72
  73 # Prompt for interactive startup after completing S
  74 if [ "${interactive}" = "I" -a "${runlevel}" != "S" -a \
  75     "${runlevel}" != "0" -a "${runlevel}" != "6" ]; then
  76     echo -n -e "Proceed with interactive starup of runlevel "
  77     echo -n -e "${INFO}${runlevel}${NORMAL}?"
  78     echo -n -e "(${FAILURE}y${NORMAL})es/(${FAILURE}n${NORMAL})o "
  79     read -n 1 go_on
  80     echo ""
  81     if [ "${go_on}" = "n" ]; then
  82         # don't continue
  83         exit 0
  84     fi
  85 fi
  86
  87
  88 # Attempt to stop all services started in the previous runlevel,
  89 # that are stopped in this runlevel
  90 if [ "${prevlevel}" != "N" ]; then
  91     for link in $(ls -v ${RC_BASE}/rc${runlevel}.d/K* 2> /dev/null)
  92     do
  93         # Check to see if link is a valid symlink
  94         if [ ! -f ${link} ]; then
  95                 echo -e "${WARNING}${link} is not a valid symlink."
  96                 continue # go on to the next K* link
  97         fi
  98
  99         # Check to see if link is executable
 100         if [ ! -x ${link} ]; then
 101                 echo -e "${WARNING}${link} is not executable, skipping."
 102                 continue # go on to the next K* link
 103         fi
 104
 105         script=${link#$RC_BASE/rc$runlevel.d/K[0-9][0-9]}
 106         prev_start=$RC_BASE/rc$prevlevel.d/S[0-9][0-9]$script
 107         S_start=$RC_BASE/rcS.d/S[0-9][0-9]$script
 108
 109         if [ "${runlevel}" != "0" -a "${runlevel}" != "6" ]; then
 110             if [ ! -f ${prev_start} ] && [ ! -f ${S_start} ]; then
 111                 echo -e -n "${WARNING}WARNING:\n\n${link} can't be"
 112                 echo -e "${WARNING} executed because it was not"
 113                 echo -e -n "${WARNING} not started in the previous"
 114                 echo -e "${WARNING} runlevel (${prevlevel})."
 115                 echo -e "${NORMAL}"
 116                 continue
 117             fi
 118         fi
 119         ${link} stop
 120         error_value=${?}
 121
 122         if [ "${error_value}" != "0" ]; then
 123             print_error_msg
 124         fi
 125     done
 126 fi
 127
 128 # Start all functions in this runlevel if they weren't started in
 129 # the previous runlevel
 130 for link in $(ls -v ${RC_BASE}/rc${runlevel}.d/S* 2> /dev/null)
 131 do
 132     if [ "${prevlevel}" != "N" ]; then
 133         script=${link#$RC_BASE/rc$runlevel.d/S[0-9][0-9]}
 134         stop=$RC_BASE/rc$runlevel.d/K[0-9][0-9]$script
 135         prev_start=$RC_BASE/rc$prevlevel.d/S[0-9][0-9]$script
 136
 137         [ -f ${prev_start} ] && [ ! -f ${stop} ] && continue
 138     fi
 139
 140     # Check to see if link is a valid symlink
 141     if [ ! -f ${link} ]; then
 142         echo -e "${WARNING}${link} is not a valid symlink."
 143         continue # go on to the next K* link
 144     fi
 145
 146     # Check to see if link is executable
 147     if [ ! -x ${link} ]; then
 148         echo -e "${WARNING}${link} is not executable, skipping."
 149         continue # go on to the next K* link
 150     fi
 151
 152     case ${runlevel} in
 153         0|6)
 154             ${link} stop
 155         ;;
 156
 157         *)
 158             if [ "${interactive}" = "I" -o "${interactive}" = "i" ]; then
 159                 echo -e -n "${WARNING}Start ${INFO}${link} ${WARNING}?"
 160                 echo -e -n "${NORMAL}(${FAILURE}y${NORMAL})es/(${FAILURE}n${NORMAL})o "
 161                 read -n 1 startit 2>&1 > /dev/null
 162                 echo ""
 163                 if [ "${startit}" = "y" -o "${startit}" = "Y" ]; then
 164                     ${link} start
 165                 else
 166                     echo -e -n "${WARNING}Not starting ${INFO}${link}"
 167                     echo -e "${WARNING}.${NORMAL}\n"
 168                 fi
 169             else
 170                 ${link} start
 171             fi
 172         ;;
 173     esac
 174     error_value=${?}
 175
 176     if [ "${error_value}" -gt "1" ]; then
 177         print_error_msg
 178     fi
 179 done
 180
 181 # Strip apply time to the logs, strip out any color codes and dump
 182 # the log to /var/log/boot.log
 183 if [ -f "${TEMPFS_MOUNT}/.bootlog" -a "${runlevel}" != "S" ]; then
 184     # Remove any color codes from the temp log file
 185     sed -i 's@\\033\[[0-9];[0-9][0-9]m@@g' "${TEMPFS_MOUNT}/.bootlog"
 186     #Fix the time and hostname
 187     BTIMESPEC=$(echo `date -u +"%b %d %T"` `hostname`)
 188     sed -i "s@^bootlog:@${BTIMESPEC} bootlog:@" "${TEMPFS_MOUNT}/.bootlog"
 189     # Don't try and write in 0 and 6, this is a 'boot' log
 190     if [ "${runlevel}" != "0" -a "${runlevel}" != "6" ]; then
 191         cat "${TEMPFS_MOUNT}/.bootlog" >> /var/log/boot.log
 192         rm -f "${TEMPFS_MOUNT}/.bootlog"
 193     fi
 194 fi
 195
 196 # End $RC_BASE/init.d/rc