SYD-LS(1) | General Commands Manual | SYD-LS(1) |
syd-ls - list unsafe directories, capabilities, system calls, environment variables, ioctl requests, personalities, and prctl options
syd-ls [set]
The syd-ls utility prints the names of the system calls which belong to the given set. Available sets are cpu, dead, deny, ebpf, futex, hook, nice, noop, pkey, ptrace, safe, setid, time, and uring.
If set is drop, syd-ls prints the list of Linux capabilities(7) that are dropped at startup.
If set is env, syd-ls prints the list of unsafe environment variables.
If set is ioctl, syd-ls prints the list of allowed ioctl requests.
If set is prctl, syd-ls prints the list of allowed prctl options.
If set is personality, syd-ls prints the list of allowed personalities.
Given no set, syd-ls lists all files in the current working directory. In this mode, getdents64(2) is used directly. Use to list files in untrusted directories with huge number of files. File names are printed hex-encoded, delimited by newline, use syd-hex(1) to decode. See EXAMPLES section for more information.
[alip@caissa tmp]$ mkdir test; cd test [alip@caissa test]$ for i in {1..10000000}; do :>$i; done [alip@caissa test]$ df -i . Filesystem Inodes IUsed IFree IUse% Mounted on tmpfs 10048576 10000228 48348 100% /tmp [alip@caissa test]$ syd-ls | head -n5 | syd-hex -dfs . .. 10000000 9999999 9999998 [alip@caissa test]$ for ls in syd-ls gls 9ls 'busybox ls'; do > sync > sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches' > echo "[*] $ls" > time $ls >/dev/null > done [*] syd-ls syd-ls: Listed 10000002 files in 2.882764582 seconds. real 0m2.889s user 0m0.883s sys 0m1.995s [*] gls real 0m7.548s user 0m5.724s sys 0m1.803s [*] 9ls real 0m15.306s user 0m2.523s sys 0m12.743s [*] busybox ls real 0m18.011s user 0m11.178s sys 0m6.786s [alip@caissa test]$ gls --version | head -n1 ls (GNU coreutils) 9.6 [alip@caissa test]$ pacman -Ss 9base | head -n1 extra/9base 6-9 [installed] [alip@caissa test]$ busybox | head -n1 BusyBox v1.36.1 () multi-call binary.
syd(1), syd(2), syd(5), syd-hex(1), getdents(2)
syd homepage: https://sydbox.exherbo.org/
Maintained by Ali Polatel. Up-to-date sources can be found at https://gitlab.exherbo.org/sydbox/sydbox.git and bugs/patches can be submitted to https://gitlab.exherbo.org/groups/sydbox/-/issues. Discuss in #sydbox on Libera Chat or in #sydbox:mailstation.de on Matrix.
2025-07-18 |