PAM_MISC_DROP_ENV(3)

💅 PAM_MISC_DROP_ENV(3) — your girl's guide to pam_misc_drop_env

okay so bestie, welcome to the Linux-PAM Manual page for PAM_MISC_DROP_ENV(3) — yes that's the section 3, library-call girlies only, we are not in command territory today 🎀✨

---

🌸 NAME 🌸

pam_misc_drop_env — liberating a locally saved environment. literally setting it free, no cap 🕊️

---

✨ SYNOPSIS ✨

#include <security/pam_misc.h>

int pam_misc_drop_env(char **env);

that's the whole thing. short. iconic. to the point. 💅

---

🦋 DESCRIPTION 🦋

so this function is defined to complement the pam_getenvlist(3) function — they're giving duo energy, one hands you the env list, this one takes it away 🫶

what it does: it liberates the memory associated with env, and like… it doesn't just free() it and walk away, no ma'am. it's overwriting with 0 all memory before free()ing it. so every byte gets scrubbed to zero first, then the memory is released. 🧼✨

ngl this is the "delete your browser history AND incinerate the hard drive" of memory management. security girlie behaviour. keep it.

---

🔥 SEE ALSO 🔥

• pam_getenvlist(3) — the other half of the duo, the one that actually hands you the env list 💖
• pam(8) — the mothership, go read her too 👑

---

👑 STANDARDS 👑

real talk: the pam_misc_drop_env function is part of the libpam_misc Library and is not defined in any standard. so she's homegrown, she's custom, she's main character energy with no committee approval 🌈⭐

---

and that's the whole page, bestie!! 💜 this little cutie is from the Linux-PAM manual, dated 07/08/2026 — go forth, drop those envs, and stay zeroed-out and fabulous 🎀🦋💅