android-12-source-code--write-file-function

ziix

于 2024-11-12 20:05:03 发布

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文章标签： android

本文链接：https://blog.youkuaiyun.com/hfcaoguilin/article/details/143722648

版权

find /app4/lineage19_oneplus6/system/ -name "*.cpp" -type f | while read -r k ; do ( grep -i  write $k | grep -i  file && echo $k  ;) ; done

获得android::base::WriteStringToFile,

进一步修改

find /app4/lineage19_oneplus6/system/ -name "*.cpp" -type f | while read -r k ; do ( grep -i  'WriteStringToFile("'  $k  && echo $k  ;) ; done

发现


// 文件: /app4/lineage19_oneplus6/system/logging/logd/logd_test.cpp
    if (!android::base::WriteStringToFile("3\n", "/proc/sys/vm/drop_caches")) {