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58 lines
1.5 KiB
Bash
Executable file
58 lines
1.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Source https://gist.github.com/vladimyr/9a03481154cd3048a486bdf71e5e1535/57e57a6ace6fb2c8bba948bce726df7a96c3f99f
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# This scripts lets you check which minimum GLIBC version an executable requires.
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# Simply run './glibc-check.sh path/to/your/binary'
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MAX_VER="${MAX_VER:-2.28}"
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BINARY="$1"
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# Version comparison function in bash
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vercomp() {
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if [[ $1 == "$2" ]]; then
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return 0
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fi
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local i ver1 ver2
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IFS="." read -ra ver1 <<<"$1"
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IFS="." read -ra ver2 <<<"$2"
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# fill empty fields in ver1 with zeros
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for ((i = ${#ver1[@]}; i < ${#ver2[@]}; i++)); do
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ver1[i]=0
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done
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for ((i = 0; i < ${#ver1[@]}; i++)); do
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if [[ -z ${ver2[i]} ]]; then
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# fill empty fields in ver2 with zeros
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ver2[i]=0
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fi
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if ((10#${ver1[i]} > 10#${ver2[i]})); then
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return 1
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fi
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if ((10#${ver1[i]} < 10#${ver2[i]})); then
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return 2
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fi
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done
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return 0
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}
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IFS="
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"
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VERS=$(objdump -T "$BINARY" | grep GLIBC_ | sed 's/.*GLIBC_\([.0-9]*\).*/\1/g' | sort -u)
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for VER in $VERS; do
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vercomp "$VER" "$MAX_VER"
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COMP=$?
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if [[ $COMP -eq 1 ]]; then
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echo "Error! ${BINARY} requests GLIBC ${VER}, which is higher than target ${MAX_VER}"
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echo "Affected symbols:"
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objdump -T "$BINARY" | grep -F "GLIBC_${VER}"
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echo "Looking for symbols in libraries..."
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for LIBRARY in $(ldd "$BINARY" | cut -d ' ' -f 3); do
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echo "$LIBRARY"
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objdump -T "$LIBRARY" | grep -F "GLIBC_${VER}"
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done
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exit 27
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else
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echo "Found version ${VER}"
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fi
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done
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