1 files changed, 135 insertions, 0 deletions

diff --git a/auth-shadow.c b/auth-shadow.c
new file mode 100644
index 000000000..a85442d72
--- /dev/null
+++ b/auth-shadow.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2004 Darren Tucker.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "includes.h"
+RCSID("$Id: auth-shadow.c,v 1.5 2004/02/21 23:22:05 dtucker Exp $");
+
+#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
+#include <shadow.h>
+
+#include "auth.h"
+#include "buffer.h"
+#include "log.h"
+
+#define DAY     (24L * 60 * 60) /* 1 day in seconds */
+
+extern Buffer loginmsg;
+
+/*
+ * For the account and password expiration functions, we assume the expiry
+ * occurs the day after the day specified.
+ */
+
+/*
+ * Check if specified account is expired.  Returns 1 if account is expired,
+ * 0 otherwise.
+ */
+int
+auth_shadow_acctexpired(struct spwd *spw)
+{
+        time_t today;
+        int daysleft;
+        char buf[256];
+
+        today = time(NULL) / DAY;
+        daysleft = spw->sp_expire - today;
+        debug3("%s: today %d sp_expire %d days left %d", __func__, (int)today,
+            (int)spw->sp_expire, daysleft);
+
+        if (spw->sp_expire == -1) {
+                debug3("account expiration disabled");
+        } else if (daysleft < 0) {
+                logit("Account %.100s has expired", spw->sp_namp);
+                return 1;
+        } else if (daysleft <= spw->sp_warn) {
+                debug3("account will expire in %d days", daysleft);
+                snprintf(buf, sizeof(buf),
+                    "Your account will expire in %d day%s.\n", daysleft,
+                    daysleft == 1 ? "" : "s");
+                buffer_append(&loginmsg, buf, strlen(buf));
+        }
+
+        return 0;
+}
+
+/*
+ * Checks password expiry for platforms that use shadow passwd files.
+ * Returns: 1 = password expired, 0 = password not expired
+ */
+int
+auth_shadow_pwexpired(Authctxt *ctxt)
+{
+        struct spwd *spw = NULL;
+        const char *user = ctxt->pw->pw_name;
+        char buf[256];
+        time_t today;
+        int daysleft, disabled = 0;
+
+        if ((spw = getspnam((char *)user)) == NULL) {
+                error("Could not get shadow information for %.100s", user);
+                return 0;
+        }
+
+        today = time(NULL) / DAY;
+        debug3("%s: today %d sp_lstchg %d sp_max %d", __func__, (int)today,
+            (int)spw->sp_lstchg, (int)spw->sp_max);
+
+#if defined(__hpux) && !defined(HAVE_SECUREWARE)
+        if (iscomsec()) {
+                struct pr_passwd *pr;
+                       
+                pr = getprpwnam((char *)user);
+
+                /* Test for Trusted Mode expiry disabled */
+                if (pr != NULL && pr->ufld.fd_min == 0 &&
+                    pr->ufld.fd_lifetime == 0 && pr->ufld.fd_expire == 0 &&
+                    pr->ufld.fd_pw_expire_warning == 0 &&
+                    pr->ufld.fd_schange != 0)
+                        disabled = 1;
+        }
+#endif
+
+        /* TODO: check sp_inact */
+        daysleft = spw->sp_lstchg + spw->sp_max - today;
+        if (disabled) {
+                debug3("password expiration disabled");
+        } else if (spw->sp_lstchg == 0) {
+                logit("User %.100s password has expired (root forced)", user);
+                return 1;
+        } else if (spw->sp_max == -1) {
+                debug3("password expiration disabled");
+        } else if (daysleft < 0) {
+                logit("User %.100s password has expired (password aged)", user);
+                return 1;
+        } else if (daysleft <= spw->sp_warn) {
+                debug3("password will expire in %d days", daysleft);
+                snprintf(buf, sizeof(buf),
+                    "Your password will expire in %d day%s.\n", daysleft,
+                    daysleft == 1 ? "" : "s");
+                buffer_append(&loginmsg, buf, strlen(buf));
+        }
+
+        return 0;
+}
+#endif  /* USE_SHADOW && HAS_SHADOW_EXPIRE */