ldpreloadhook | a quick open/close/ioctl/read/write/free function hooker

ldpreloadhook is a C library. ldpreloadhook has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

a quick open/close/ioctl/read/write/free symbol hooker. Optionally, if you want to spy a concrete file you can set the environment variable SPYFILE, for example /dev/serio_raw0: LD_PRELOAD="./hook.so" SPYFILE="/dev/serio_raw0" command . All data read from this file will be saved in /tmp/read_data.bin. All data written to this file will be saved in /tmp/write_data.bin. Optionally, if you want to have a delimiter set in the read/write data files each time the file is opened, you can set the environment variable DELIMITER: LD_PRELOAD="./hook.so" SPYFILE="/dev/serio_raw0" DELIMITER="---" command . You can also spy on free() calls by setting the environment variable SPYFREE, this will print the contents of every buffer before free()ing them: LD_PRELOAD="./hook.so" SPYFREE=1 command .