#! @BASH@
-# Copyright (C) 1996-2012, 2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2019 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
printf $"Copyright (C) %s Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-" "2013"
+" "2019"
printf $"Written by %s and %s.
" "Roland McGrath" "Ulrich Drepper"
exit 0
add_env="$add_env LD_DEBUG=\"$LD_DEBUG${LD_DEBUG:+,}unused\""
fi
-# The following use of cat is needed to make ldd work in SELinux
-# environments where the executed program might not have permissions
-# to write to the console/tty. But only bash 3.x supports the pipefail
-# option, and we don't bother to handle the case for older bash versions.
-if set -o pipefail 2> /dev/null; then
- try_trace() {
- eval $add_env '"$@"' | cat
- }
-else
- try_trace() {
- eval $add_env '"$@"'
- }
-fi
+# The following command substitution is needed to make ldd work in SELinux
+# environments where the RTLD might not have permission to write to the
+# terminal. The extra "x" character prevents the shell from trimming trailing
+# newlines from command substitution results. This function is defined as a
+# subshell compound list (using "(...)") to prevent parameter assignments from
+# affecting the calling shell execution environment.
+try_trace() (
+ output=$(eval $add_env '"$@"' 2>&1; rc=$?; printf 'x'; exit $rc)
+ rc=$?
+ printf '%s' "${output%x}"
+ return $rc
+)
case $# in
0)
fi
done
case $ret in
- 0)
- # If the program exits with exit code 5, it means the process has been
- # invoked with __libc_enable_secure. Fall back to running it through
- # the dynamic linker.
- try_trace "$file"
- rc=$?
- if [ $rc = 5 ]; then
- try_trace "$RTLD" "$file"
- rc=$?
- fi
- [ $rc = 0 ] || result=1
- ;;
1)
# This can be a non-ELF binary or no binary at all.
nonelf "$file" || {
result=1
}
;;
- 2)
+ 0|2)
try_trace "$RTLD" "$file" || result=1
;;
*)