pristine/SOURCES/abrt-ccpp.init

#!/bin/bash
# Install abrt coredump hook
#
# chkconfig: 35 82 16
# description: Installs coredump handler which saves segfault data
### BEGIN INIT INFO
# Provides: abrt-ccpp
# Required-Start: $abrtd
# Default-Stop: 0 1 2 6
# Default-Start: 3 5
# Short-Description: Installs coredump handler which saves segfault data
# Description: Installs coredump handler which saves segfault data
### END INIT INFO

# Source function library.
. /etc/rc.d/init.d/functions

# For debugging
dry_run=false
verbose=false

# We don't have pid files, therefore have to use
# a flag file in /var/lock/subsys to enable GUI service tools
# to figure out our status
LOCK="/var/lock/subsys/abrt-ccpp"

PATTERN_FILE="/proc/sys/kernel/core_pattern"
SAVED_PATTERN_FILE="/var/run/abrt/saved_core_pattern"
HOOK_BIN="/usr/libexec/abrt-hook-ccpp"
PATTERN="|$HOOK_BIN /var/spool/abrt %s %c %p %u %g %t %h %e"

# core_pipe_limit specifies how many dump_helpers can run at the same time
# 0 - means unlimited, but it's not guaranteed that /proc/<pid> of crashing
#     process will be available for dump_helper.
# 4 - means that 4 dump_helpers can run at the same time (the rest will also
#     run, but they will fail to read /proc/<pid>).
#
# This should be enough for ABRT, we can miss some crashes, but what are
# the odds that more processes crash at the same time? And moreover,
# do people want to save EVERY ONE of the crashes when they have
# a crash storm? I don't think so.
# The value of 4 has been recommended by nhorman.
#
CORE_PIPE_LIMIT_FILE="/proc/sys/kernel/core_pipe_limit"
CORE_PIPE_LIMIT="4"

RETVAL=0

check() {
        # Check that we're a privileged user
        [ "`id -u`" = 0 ] || exit 4
}

start() {
        check

        cur=`cat "$PATTERN_FILE"`
        cur_first=`printf "%s" "$cur" | sed 's/ .*//'`

        $verbose && printf "cur:'%s'\n" "$cur"
        # Is it already installed?
        if test x"$cur_first" != x"|$HOOK_BIN"; then   # no
                # It is not installed
                printf "%s\n" "$cur" >"$SAVED_PATTERN_FILE"
                OLD_PATTERN=""
                # Does old pattern start with '|'?
                if test x"${cur#|}" = x"$cur"; then   # no
                        # Encode it as hex string, NUL terminated
                        OLD_PATTERN=`printf "%s" "$cur" | od -tx1 | sed 's/000[^ ]*//' | xargs | sed 's/ //g'`
                        $verbose && printf "OLD_PATTERN:'%s'\n" "$OLD_PATTERN"
                        OLD_PATTERN=" ${OLD_PATTERN}00"
                fi
                # Install new handler
                $verbose && printf "Installing to %s:'%s'\n" "$PATTERN_FILE" "${PATTERN}${OLD_PATTERN}"
                $dry_run || echo "${PATTERN}${OLD_PATTERN}" >"$PATTERN_FILE"
                $dry_run || touch -- "$LOCK"

                # Check core_pipe_limit and change it if it's 0,
                # otherwise the abrt-hook-ccpp won't be able to read /proc/<pid>
                # of the crashing process
                if test x"`cat "$CORE_PIPE_LIMIT_FILE"`" = x"0"; then
                        echo "$CORE_PIPE_LIMIT" >"$CORE_PIPE_LIMIT_FILE"
                fi
        fi
        return $RETVAL
}

stop() {
        check

        if test -f "$SAVED_PATTERN_FILE"; then
                $verbose && printf "Restoring to %s:'%s'\n" "$PATTERN_FILE" "`cat "$SAVED_PATTERN_FILE"`"
                $dry_run || cat "$SAVED_PATTERN_FILE" >"$PATTERN_FILE"
        fi
        $dry_run || rm -f -- "$LOCK"
        return $RETVAL
}

restart() {
        stop
        start
}

reload() {
        restart
}

case "$1" in
start)
        start
        ;;
stop)
        stop
        ;;
reload)
        reload
        ;;
force-reload)
        echo "$0: Unimplemented feature."
        RETVAL=3
        ;;
restart)
        restart
        ;;
condrestart)
        cur=`cat "$PATTERN_FILE"`
        cur_first=`printf "%s" "$cur" | sed 's/ .*//'`
        # Is it already installed?
        if test x"$cur_first" = x"|$HOOK_BIN"; then   # yes
                $verbose && printf "Installed, re-installing\n"
                restart
        fi
        ;;
status)
        cur=`cat "$PATTERN_FILE"`
        cur_first=`printf "%s" "$cur" | sed 's/ .*//'`
        # Is it already installed?
        if test x"$cur_first" = x"|$HOOK_BIN"; then   # yes
                $verbose && printf "Installed\n"
                RETVAL=0
        else
                $verbose && printf "Not installed\n"
                RETVAL=3  # "stopped normally"
        fi
        ;;
*)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|reload|force-reload}"
        RETVAL=2
esac

exit $RETVAL

1	dmorgan	109812	#!/bin/bash
2			# Install abrt coredump hook
3			#
4			# chkconfig: 35 82 16
5			# description: Installs coredump handler which saves segfault data
6			### BEGIN INIT INFO
7			# Provides: abrt-ccpp
8			# Required-Start: $abrtd
9			# Default-Stop: 0 1 2 6
10			# Default-Start: 3 5
11			# Short-Description: Installs coredump handler which saves segfault data
12			# Description: Installs coredump handler which saves segfault data
13			### END INIT INFO
14
15			# Source function library.
16			. /etc/rc.d/init.d/functions
17
18			# For debugging
19			dry_run=false
20			verbose=false
21
22			# We don't have pid files, therefore have to use
23			# a flag file in /var/lock/subsys to enable GUI service tools
24			# to figure out our status
25			LOCK="/var/lock/subsys/abrt-ccpp"
26
27			PATTERN_FILE="/proc/sys/kernel/core_pattern"
28			SAVED_PATTERN_FILE="/var/run/abrt/saved_core_pattern"
29			HOOK_BIN="/usr/libexec/abrt-hook-ccpp"
30			PATTERN="\|$HOOK_BIN /var/spool/abrt %s %c %p %u %g %t %h %e"
31
32			# core_pipe_limit specifies how many dump_helpers can run at the same time
33			# 0 - means unlimited, but it's not guaranteed that /proc/<pid> of crashing
34			# process will be available for dump_helper.
35			# 4 - means that 4 dump_helpers can run at the same time (the rest will also
36			# run, but they will fail to read /proc/<pid>).
37			#
38			# This should be enough for ABRT, we can miss some crashes, but what are
39			# the odds that more processes crash at the same time? And moreover,
40			# do people want to save EVERY ONE of the crashes when they have
41			# a crash storm? I don't think so.
42			# The value of 4 has been recommended by nhorman.
43			#
44			CORE_PIPE_LIMIT_FILE="/proc/sys/kernel/core_pipe_limit"
45			CORE_PIPE_LIMIT="4"
46
47			RETVAL=0
48
49			check() {
50			# Check that we're a privileged user
51			[ "`id -u`" = 0 ] \|\| exit 4
52			}
53
54			start() {
55			check
56
57			cur=`cat "$PATTERN_FILE"`
58			cur_first=`printf "%s" "$cur" \| sed 's/ .*//'`
59
60			$verbose && printf "cur:'%s'\n" "$cur"
61			# Is it already installed?
62			if test x"$cur_first" != x"\|$HOOK_BIN"; then # no
63			# It is not installed
64			printf "%s\n" "$cur" >"$SAVED_PATTERN_FILE"
65			OLD_PATTERN=""
66			# Does old pattern start with '\|'?
67			if test x"${cur#\|}" = x"$cur"; then # no
68			# Encode it as hex string, NUL terminated
69			OLD_PATTERN=`printf "%s" "$cur" \| od -tx1 \| sed 's/000[^ ]*//' \| xargs \| sed 's/ //g'`
70			$verbose && printf "OLD_PATTERN:'%s'\n" "$OLD_PATTERN"
71			OLD_PATTERN=" ${OLD_PATTERN}00"
72			fi
73			# Install new handler
74			$verbose && printf "Installing to %s:'%s'\n" "$PATTERN_FILE" "${PATTERN}${OLD_PATTERN}"
75			$dry_run \|\| echo "${PATTERN}${OLD_PATTERN}" >"$PATTERN_FILE"
76			$dry_run \|\| touch -- "$LOCK"
77
78			# Check core_pipe_limit and change it if it's 0,
79			# otherwise the abrt-hook-ccpp won't be able to read /proc/<pid>
80			# of the crashing process
81			if test x"`cat "$CORE_PIPE_LIMIT_FILE"`" = x"0"; then
82			echo "$CORE_PIPE_LIMIT" >"$CORE_PIPE_LIMIT_FILE"
83			fi
84			fi
85			return $RETVAL
86			}
87
88			stop() {
89			check
90
91			if test -f "$SAVED_PATTERN_FILE"; then
92			$verbose && printf "Restoring to %s:'%s'\n" "$PATTERN_FILE" "`cat "$SAVED_PATTERN_FILE"`"
93			$dry_run \|\| cat "$SAVED_PATTERN_FILE" >"$PATTERN_FILE"
94			fi
95			$dry_run \|\| rm -f -- "$LOCK"
96			return $RETVAL
97			}
98
99			restart() {
100			stop
101			start
102			}
103
104			reload() {
105			restart
106			}
107
108			case "$1" in
109			start)
110			start
111			;;
112			stop)
113			stop
114			;;
115			reload)
116			reload
117			;;
118			force-reload)
119			echo "$0: Unimplemented feature."
120			RETVAL=3
121			;;
122			restart)
123			restart
124			;;
125			condrestart)
126			cur=`cat "$PATTERN_FILE"`
127			cur_first=`printf "%s" "$cur" \| sed 's/ .*//'`
128			# Is it already installed?
129			if test x"$cur_first" = x"\|$HOOK_BIN"; then # yes
130			$verbose && printf "Installed, re-installing\n"
131			restart
132			fi
133			;;
134			status)
135			cur=`cat "$PATTERN_FILE"`
136			cur_first=`printf "%s" "$cur" \| sed 's/ .*//'`
137			# Is it already installed?
138			if test x"$cur_first" = x"\|$HOOK_BIN"; then # yes
139			$verbose && printf "Installed\n"
140			RETVAL=0
141			else
142			$verbose && printf "Not installed\n"
143			RETVAL=3 # "stopped normally"
144			fi
145			;;
146			*)
147			echo $"Usage: $0 {start\|stop\|status\|restart\|condrestart\|reload\|force-reload}"
148			RETVAL=2
149			esac
150
151			exit $RETVAL
152