I use the below code to get user and password from pam, but there is a problem for password.
Password is (null) when I call "rc = pam_get_item (pamh, PAM_AUTHTOK, (const void **) &p);"
what is the problem with the code?
Regards,
53 D(("get user returned error: %s", pam_strerror(pamh,retval)));
55 int rc;
56 char *user=NULL;
57 char *p=NULL;
58 int use_first_pass = 0, try_first_pass = 0;
59 int i;
60
61 for (i = 0; i < argc; i++)
62 {
63 if (!strcmp (argv[i], "use_first_pass"))
64 use_first_pass = 1;
65 else if (!strcmp (argv[i], "try_first_pass"))
66 try_first_pass = 1;
72 }
73 rc = pam_get_user(pamh,(const char **) &user, NULL);
74 if (rc != PAM_SUCCESS)
75 {
76 D(("get user returned error: %s", pam_strerror(pamh,rc)));
78 return rc;
79 }
82 if (user == NULL || *user == '\0')
83 {
84 D(("username not known"));
85 rc = pam_set_item(pamh, PAM_USER, (const char *) DEFAULT_USER);
86 if (rc != PAM_SUCCESS)
87 return PAM_USER_UNKNOWN;
88 }
89 //user = NULL; /* clean up */
90
91 rc = pam_get_item (pamh, PAM_AUTHTOK, (const void **) &p);
92 syslog (LOG_ERR, "pass: %s", p);
93 syslog (LOG_ERR, "user: %s", user);
94 return PAM_SUCCESS;
95 if (rc == PAM_SUCCESS && (use_first_pass || try_first_pass))
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