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PAM_GETENVLIST(3) Linux-PAM Manual PAM_GETENVLIST(3)
pam_getenvlist - getting the PAM environment
#include <security/pam_appl.h> char **pam_getenvlist(pam_handle_t *pamh);
The pam_getenvlist function returns a complete copy of the PAM environment as associated with the handle pamh. The PAM environment variables represent the contents of the regular environment variables of the authenticated user when service is granted. The format of the memory is a malloc()'d array of char pointers, the last element of which is set to NULL. Each of the non-NULL entries in this array point to a NUL terminated and malloc()'d char string of the form: "name=value". It should be noted that this memory will never be free()'d by libpam. Once obtained by a call to pam_getenvlist, it is the responsibility of the calling application to free() this memory. It is by design, and not a coincidence, that the format and contents of the returned array matches that required for the third argument of the execle(3) function call.
The pam_getenvlist function returns NULL on failure.
pam_start(3), pam_getenv(3), pam_putenv(3), pam(8)
This page is part of the linux-pam (Pluggable Authentication
Modules for Linux) project. Information about the project can be
found at ⟨http://www.linux-pam.org/⟩. If you have a bug report
for this manual page, see ⟨//www.linux-pam.org/⟩. This page was
obtained from the project's upstream Git repository
⟨https://github.com/linux-pam/linux-pam.git⟩ on 2023-12-22. (At
that time, the date of the most recent commit that was found in
the repository was 2023-12-18.) If you discover any rendering
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Linux-PAM Manual 12/22/2023 PAM_GETENVLIST(3)
Pages that refer to this page: su(1), pam(3), pam_getenv(3), pam_misc_drop_env(3), pam_putenv(3), pam_exec(8)