1 files changed, 54 insertions, 0 deletions

diff --git a/epam.c b/epam.c
new file mode 100644
index 0000000..6bc40ab
--- /dev/null
+++ b/epam.c
@@ -0,0 +1,54 @@
+/* gcc -o epam -lpam -lpam_misc epam.c -g */
+
+#include <security/pam_appl.h>
+#include <security/pam_misc.h>
+#include <stdio.h>
+
+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 ("elock", user, &conv, &pamh);
+
+    printf (":%s\n", pam_strerror (pamh, retval));
+
+    if (retval == PAM_SUCCESS)
+        retval = pam_authenticate (pamh, 0);
+    printf (":%s\n", pam_strerror (pamh, retval));
+
+    if (retval == PAM_SUCCESS)
+        retval = pam_acct_mgmt (pamh, 0);
+    printf (":%s\n", pam_strerror (pamh, retval));
+
+    if (retval == PAM_SUCCESS)
+        fprintf (stdout, "Authenticated\n");
+    else
+        fprintf (stdout, "Not Authenticated\n");
+    printf (":%s\n", pam_strerror (pamh, retval));
+
+    if (pam_end (pamh, retval) != PAM_SUCCESS)
+    {
+        pamh = NULL;
+        fprintf (stderr, "check_user: failed to release authenticator\n");
+        exit (1);
+    }
+    printf (":%s\n", pam_strerror (pamh, retval));
+
+    return (retval == PAM_SUCCESS ? 0 : 1);
+}