diff options
Diffstat (limited to 'gdb/contrib')
| -rwxr-xr-x | gdb/contrib/gdb-add-index.sh | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gdb/contrib/gdb-add-index.sh b/gdb/contrib/gdb-add-index.sh index 2ac3fdd..734110c 100755 --- a/gdb/contrib/gdb-add-index.sh +++ b/gdb/contrib/gdb-add-index.sh @@ -37,6 +37,34 @@ fi file="$1" +if test -L "$file"; then + if ! command -v readlink >/dev/null 2>&1; then + echo "$myname: 'readlink' missing. Failed to follow symlink $1." 1>&2 + exit 1 + fi + + # Count number of links followed in order to detect loops. + count=0 + while test -L "$file"; do + target=$(readlink "$file") + + case "$target" in + /*) + file="$target" + ;; + *) + file="$(dirname "$file")/$target" + ;; + esac + + count="$((count + 1))" + if test "$count" -gt 10; then + echo "$myname: Detected loop while following link $file" + exit 1 + fi + done +fi + if test ! -r "$file"; then echo "$myname: unable to access: $file" 1>&2 exit 1 |