6 * $Id: pam_start.c,v 1.10 1997/04/05 06:58:11 morgan Exp $
7 * $FreeBSD: src/contrib/libpam/libpam/pam_start.c,v 1.1.1.1.6.2 2001/06/11 15:28:12 markm Exp $
8 * $DragonFly: src/contrib/libpam/libpam/Attic/pam_start.c,v 1.2 2003/06/17 04:24:03 dillon Exp $
10 * $Log: pam_start.c,v $
19 #include "pam_private.h"
22 const char *service_name,
24 const struct pam_conv *pam_conversation,
27 D(("called pam_start: [%s] [%s] [%p] [%p]"
28 ,service_name, user, pam_conversation, pamh));
30 if ((*pamh = calloc(1, sizeof(**pamh))) == NULL) {
31 pam_system_log(NULL, NULL, LOG_CRIT,
32 "pam_start: calloc failed for *pamh");
39 if (((*pamh)->service_name = _pam_strdup(service_name)) == NULL) {
40 pam_system_log(NULL, NULL, LOG_CRIT,
41 "pam_start: _pam_strdup failed for service name");
45 for (tmp=(*pamh)->service_name; *tmp; ++tmp)
46 *tmp = tolower(*tmp); /* require lower case */
48 (*pamh)->service_name = NULL;
51 if (((*pamh)->user = _pam_strdup(user)) == NULL) {
52 pam_system_log(NULL, NULL, LOG_CRIT,
53 "pam_start: _pam_strdup failed for user");
54 _pam_drop((*pamh)->service_name);
62 (*pamh)->prompt = NULL; /* prompt for pam_get_user() */
63 (*pamh)->ruser = NULL;
64 (*pamh)->rhost = NULL;
65 (*pamh)->authtok = NULL;
66 (*pamh)->oldauthtok = NULL;
67 (*pamh)->fail_delay.delay_fn_ptr = NULL;
68 (*pamh)->former.choice = PAM_NOT_STACKED;
70 if (pam_conversation == NULL
71 || ((*pamh)->pam_conversation = (struct pam_conv *)
72 malloc(sizeof(struct pam_conv))) == NULL) {
73 pam_system_log(NULL, NULL, LOG_CRIT,
74 "pam_start: malloc failed for pam_conv");
75 _pam_drop((*pamh)->service_name);
76 _pam_drop((*pamh)->user);
80 memcpy((*pamh)->pam_conversation, pam_conversation,
81 sizeof(struct pam_conv));
85 if ( _pam_make_env(*pamh) != PAM_SUCCESS ) {
86 pam_system_log(NULL, NULL, LOG_ERR,
87 "pam_start: failed to initialize environment");
88 _pam_drop((*pamh)->service_name);
89 _pam_drop((*pamh)->user);
94 _pam_reset_timer(*pamh); /* initialize timer support */
96 _pam_start_handlers(*pamh); /* cannot fail */
98 /* According to the SunOS man pages, loading modules and resolving
99 * symbols happens on the first call from the application. */
102 * XXX - should we call _pam_init_handlers() here ? The following
103 * is new as of Linux-PAM 0.55
106 if ( _pam_init_handlers(*pamh) != PAM_SUCCESS ) {
107 pam_system_log(NULL, NULL, LOG_ERR,
108 "pam_start: failed to initialize handlers");
109 _pam_drop_env(*pamh); /* purge the environment */
110 _pam_drop((*pamh)->service_name);
111 _pam_drop((*pamh)->user);
116 D(("exiting pam_start successfully"));