From 26367bfc399cb3862f94ddca8fce87f98f26d67e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:38:36 +0200 Subject: Adding upstream version 1.3.1. Signed-off-by: Daniel Baumann --- examples/check_user.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 examples/check_user.c (limited to 'examples/check_user.c') diff --git a/examples/check_user.c b/examples/check_user.c new file mode 100644 index 0000000..89cc137 --- /dev/null +++ b/examples/check_user.c @@ -0,0 +1,60 @@ +/* + $Id$ + + This program was contributed by Shane Watts + slight modifications by AGM. + + You need to add the following (or equivalent) to the /etc/pam.conf file. + # check authorization + check auth required pam_unix_auth.so + check account required pam_unix_acct.so +*/ + +#include +#include +#include + +static struct pam_conv conv = { + misc_conv, + NULL +}; + +int main(int argc, char *argv[]) +{ + pam_handle_t *pamh=NULL; + int retval; + const char *user="nobody"; + + if(argc == 2) { + user = argv[1]; + } + + if(argc > 2) { + fprintf(stderr, "Usage: check_user [username]\n"); + exit(1); + } + + retval = pam_start("check", user, &conv, &pamh); + + if (retval == PAM_SUCCESS) + retval = pam_authenticate(pamh, 0); /* is user really user? */ + + if (retval == PAM_SUCCESS) + retval = pam_acct_mgmt(pamh, 0); /* permitted access? */ + + /* This is where we have been authorized or not. */ + + if (retval == PAM_SUCCESS) { + fprintf(stdout, "Authenticated\n"); + } else { + fprintf(stdout, "Not Authenticated\n"); + } + + if (pam_end(pamh,retval) != PAM_SUCCESS) { /* close Linux-PAM */ + pamh = NULL; + fprintf(stderr, "check_user: failed to release authenticator\n"); + exit(1); + } + + return ( retval == PAM_SUCCESS ? 0:1 ); /* indicate success */ +} -- cgit v1.2.3