This file is indexed.

/usr/bin/phablet-screenshot is in phablet-tools 1.2+16.04.20160317-0ubuntu1.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
#!/bin/sh

#
# Screen capture of Mir devices
#

# Copyright (C) 2013 Canonical
#
# Authors: Jean-Baptiste Lallement <jean-baptiste.lallement@canonical.com>
#
# This program is free software; you can redistribute it and/or modify it #
# under the terms of the GNU General Public License as published by the Free #
# Software Foundation; version 3.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# # details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301 USA
set -eu

if [ -f "$(dirname $0)/shell-adb-common.sh" ]; then
    . "$(dirname $0)/shell-adb-common.sh"
else
    . "/usr/share/phabletutils/shell-adb-common.sh"
fi

PICDIR=$(mktemp -d /tmp/$(basename $0).XXXXXX)
FBDEV=fb0
SERIAL=""
CONVERTOPTS="-alpha off"
REQUIREDPKGS="android-tools-adb imagemagick"

size=""

cleanup() {
    #
    # Cleanup temporary files
    #
    [ -d "$PICDIR" ] && rm -Rf "$PICDIR"
}
trap cleanup EXIT INT QUIT ABRT PIPE TERM

usage() {
    #
    # Print usage and exit
    #
    cat <<EOF
Usage: $(basename $0) [OPTIONS...] <FILENAME>
Dump /dev/$FBDEV from a touch device and write it to FILENAME

Arguments:
    FILENAME    Name of the output image, the output format must be supported by
                convert from the package imagemagick.
Options
    -d,--debug  Enable debug
    -h,--help   This help
    -s,--serial SERIAL   
                Serial number of the device
    -z,--resize FACTOR
                Resize the image

EOF
    exit 1
}

check_prerequisites() {
    # Check list of required packages
    okay=1
    pkgs="$REQUIREDPKGS"
    for pkg in $pkgs; do
        if ! dpkg-query -W -f '${Status}\t${Package}\n' $pkg 2>/dev/null| grep "ok installed" >/dev/null 2>&1; then
            okay=0
            echo "E: Package '$pkg' is required and is not installed."
        fi
    done

    if [ $okay -ne 1 ]; then
        echo "E: pre-requisites are not met. Exiting!"
        exit 1
    fi
}

sf_is_running() {
    #  Return 0 if surface flinger is running then we'll use screencap
    #  instead
    sf=$(adb shell pidof surfaceflinger)
    if [ -z "$sf" ]; then
        return 1
    else
        echo "I: surfaceflinger detected"
        return 0
    fi
}

screenshot_mir() {
    # Dump framebuffer to capture Mir screenshot
    #
    # Arguments:
    #   $1: Size
    #   $2: Depth
    #   $3: Device codename
    size=$1
    depth=$2
    device=$3
    sfx="rgba"

    CONVERTOPTS="$CONVERTOPTS -depth $depth -size $size"
    MIRFILENAME="/tmp/mir_screencast_$size.$sfx"

    # for backwards compatibility we check for socket existence and fall
    # back to the old location if the new socket does not exist
    SOCKET=$(adb shell "ls /run/mir_socket 2>/dev/null | tr -d '\n'")
    [ -z "$SOCKET" ] && SOCKET="/tmp/mir_socket"

    echo "I: Dumping $FBDEV ..."
    adb shell mirscreencast -m $SOCKET -n1 -f $MIRFILENAME
    adb pull $MIRFILENAME ${PICDIR}/fb

    [ ! -e "${PICDIR}/fb" ] && echo "E: Capture failed!" && return
    convert $CONVERTOPTS $sfx:${PICDIR}/fb[0] "$DST"
}

get_device() {
    # Get device name
    device=$(adb shell getprop ro.product.device)
    echo "$device"|tr -d '\r'
}

screenshot_sf() {
    # Use screencap if surfaceflinger is running
    echo "I: Capturing screenshot with screencap ..."
    capfile=screencap.png
    adb shell /system/bin/screencap /tmp/$capfile
    adb pull /tmp/$capfile ${PICDIR}/$capfile

    [ ! -e "${PICDIR}/${capfile}" ] && echo "E: Capture failed!" && return
    convert $CONVERTOPTS ${PICDIR}/$capfile "$DST"
}

SHORTOPTS="hdr:s:z:"
LONGOPTS="help,debug,resolution:,serial:,resize:"

TEMP=$(getopt -o $SHORTOPTS --long $LONGOPTS -- "$@")
eval set -- "$TEMP"

while true ; do
    case "$1" in
        -h|--help)
            usage;;
        -d|--debug)
            set -x
            shift;;
        -r|--resolution)
            echo "I: The '--resolution' option is deprecated"
            shift 2;;
        -s|--serial)
            SERIAL="$2"
            shift 2;; 
        -z|--resize)
            CONVERTOPTS="$CONVERTOPTS -resize $2"
            shift 2;;
        --) shift;
            break;;
        *) usage;;
    esac
done

[ $# -eq 0 ] && usage
DST="$1"

# exporting ANDROID_SERIAL to support multiple devices connected
# seamlessly
[ -z "$SERIAL" ] || export ANDROID_SERIAL="$SERIAL"

check_prerequisites

# We want to make sure the adb server is up and running. This is a noop if 
# the server is already running.
adb start-server

check_devices

if sf_is_running; then
    # Use screencap for surfaceflinger
    screenshot_sf
else
    # Otherwise just dump the framebuffer
    # Set resolution and depth for device
    depth=8
    size="$(adb shell fbset|sed -n -e's/^mode.*\"\([0-9]\+x[0-9]\+\)[-\"].*$/\1/p')"
    device="$(get_device)"
    if [ -z "$size" ]; then
        echo "E: Resolution not found. Device is not supported."
        exit 1
    fi
    screenshot_mir "$size" "$depth" "$device"
fi
echo "I: Done"