#!/bin/sh
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# umask sets the calling process' file mode creation mask
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# 002 is the default mask for users. The default mask for root is 0022.
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# set umask to 002 which is equivalent to &'ing the permission flags of files created by OpenTAP with -rw-rw-r--
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# the default umask for the 'root' user is 022, which would & with -rw-r--r--
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# This would cause files created when running as root to be non-writable by the OpenTAP group,
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# which can cause e.g. package installs and logfiles to behave unexpectedly.
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umask 002
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# realpath requires coreutils on osx which we can not necessarily rely on
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realpath() {
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local path="$1"
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local relativePath="$(readlink "$path")"
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# Keep looping until the file is resolved to a regular file
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while [ "$relativePath" ]; do
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# File is a link; follow it
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local here="$(pwd)"
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cd "$(dirname "$path")"
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cd "$(dirname "$relativePath")"
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path="$(pwd)/$(basename "$relativePath")"
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cd "$here"
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relativePath="$(readlink "$path")"
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if [ "$path" = "$relativePath" ]; then
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# infinite loop
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echo "Error resolving link." >&2
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return 1
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fi
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done
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echo "$path"
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}
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TapPath="$(realpath "$0")"
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TapDllDir="$(dirname "$TapPath")"
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TapDllPath="$TapDllDir/tap.dll"
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if ! [ -f "$TapDllPath" ]; then
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cat >&2 <<EOF
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File does not exist: $TapDllPath
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This could mean:
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1) OpenTAP is broken due to a partial update or uninstall
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2) The OpenTAP installation was moved
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Please reinstall OpenTAP
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EOF
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exit 1
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fi
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DOTNET_CMD=dotnet
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# check if dotnet is in PATH
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if ! command -v dotnet > /dev/null 2>&1; then
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# if dotnet is not in path, check the location where the installer attempts to install it
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DOTNET_CMD="$HOME/.dotnet/dotnet"
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if [ ! -x "$DOTNET_CMD" ]; then
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echo "dotnet could not be found."
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exit 1
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fi
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fi
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# -w checks if TapDllDir exists and is writable by the current user.
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if [ -w "$TapDllDir" ]; then
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# use exec to replace the current process instead of starting a child process
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exec "$DOTNET_CMD" "$TapDllPath" "$@"
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else
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# If the user cannot write to the installation, OpenTAP will not work correctly.
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echo "User $USER does not have write access to this OpenTAP installation." >&2
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fi
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