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| author | Jay Freeman (saurik) <saurik@saurik.com> | 2017-01-29 01:11:28 -0800 |
|---|---|---|
| committer | Jay Freeman (saurik) <saurik@saurik.com> | 2017-01-29 01:11:28 -0800 |
| commit | ceffc5bc20c1ab16c4d02e1d3ae8fcfb65557797 (patch) | |
| tree | 5ee557d7d626e66684110f9f447686f85a26c6a5 | |
| parent | 109355f19df80de62ab05eec18df8ae15ad423ec (diff) | |
Try to protect firmware.sh against reentrant bugs.v1.1.28%b6
| -rwxr-xr-x | Library/firmware.sh | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Library/firmware.sh b/Library/firmware.sh index afaae9a..d2f89eb 100755 --- a/Library/firmware.sh +++ b/Library/firmware.sh @@ -49,6 +49,12 @@ EOF } # }}} +before=$(stat -c '%i-%Y' status) + +output=$(mktemp status-tmp.XXXXXX) +xxxxxx=${output##status-tmp.} +rm -f status-tmp.!("${xxxxxx}") + { # Delete Old Packages {{{ @@ -135,9 +141,11 @@ EOF pseudo "cy+lib.corefoundation" "$(/usr/libexec/cydia/cfversion)" "virtual corefoundation dependency" -} >"${status}"_ +} >"${output}" -mv -f "${status}"{_,} +# XXX: this is a poor replacement for flock +test "${before}" = "$(stat -c '%i-%Y' status)" +mv -f "${output}" "${status}" if [[ ${cpu} == arm || ${cpu} == arm64 ]]; then if [[ ! -h /User && -d /User ]]; then |