'\" t
.\"     Title: pam_getenvlist
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets v1.79.2 <http://docbook.sf.net/>
.\"      Date: 08/28/2024
.\"    Manual: Linux-PAM Manual
.\"    Source: Linux-PAM
.\"  Language: English
.\"
.TH "PAM_GETENVLIST" "3" "08/28/2024" "Linux\-PAM" "Linux\-PAM Manual"
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.SH "NAME"
pam_getenvlist \- getting the PAM environment
.SH "SYNOPSIS"
.sp
.ft B
.nf
#include <security/pam_appl\&.h>
.fi
.ft
.HP \w'char\ **pam_getenvlist('u
.BI "char **pam_getenvlist(pam_handle_t\ *" "pamh" ");"
.SH "DESCRIPTION"
.PP
The
\fBpam_getenvlist\fR
function returns a complete copy of the PAM environment as associated with the handle
\fIpamh\fR\&. The PAM environment variables represent the contents of the regular environment variables of the authenticated user when service is granted\&.
.PP
The format of the memory is a malloc()\*(Aqd 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()\*(Aqd char string of the form: "\fIname=value\fR"\&.
.PP
It should be noted that this memory will never be free()\*(Aqd by libpam\&. Once obtained by a call to
\fBpam_getenvlist\fR, it is the responsibility of the calling application to free() this memory\&.
.PP
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
\fBexecle\fR(3)
function call\&.
.SH "RETURN VALUES"
.PP
The
\fBpam_getenvlist\fR
function returns NULL on failure\&.
.SH "SEE ALSO"
.PP
\fBpam_start\fR(3),
\fBpam_getenv\fR(3),
\fBpam_putenv\fR(3),
\fBpam\fR(8)