X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/d78480be9f049f1c78df9c6ed66accb81bec1f94..c12cf250eb723e0bd7e34a539887e42f03939023:/auth-shadow.c

diff --git a/auth-shadow.c b/auth-shadow.c
index 4b3a514f..21909167 100644
--- a/auth-shadow.c
+++ b/auth-shadow.c
@@ -23,19 +23,63 @@
  */
 
 #include "includes.h"
-RCSID("$Id$");
 
 #if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
 #include <shadow.h>
+#include <stdarg.h>
+#include <string.h>
+#include <time.h>
 
+#include "key.h"
+#include "hostfile.h"
 #include "auth.h"
 #include "buffer.h"
 #include "log.h"
 
+#ifdef DAY
+# undef DAY
+#endif
 #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
@@ -45,9 +89,11 @@ 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(user)) == NULL) {
+	if ((spw = getspnam((char *)user)) == NULL) {
 		error("Could not get shadow information for %.100s", user);
 		return 0;
 	}
@@ -57,21 +103,38 @@ auth_shadow_pwexpired(Authctxt *ctxt)
 	    (int)spw->sp_lstchg, (int)spw->sp_max);
 
 #if defined(__hpux) && !defined(HAVE_SECUREWARE)
-	if (iscomsec() && spw->sp_min == 0 && spw->sp_max == 0 &&
-	    spw->sp_warn == 0)
-		return 0;	/* HP-UX Trusted Mode: expiry disabled */
-#endif
+	if (iscomsec()) {
+		struct pr_passwd *pr;
 
-	/* TODO: Add code to put expiry warnings into loginmsg */
+		pr = getprpwnam((char *)user);
 
-	if (spw->sp_lstchg == 0) {
-		logit("User %.100s password has expired (root forced)", user);
-		return 1;
+		/* 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
 
-	if (spw->sp_max != -1 && today > spw->sp_lstchg + spw->sp_max) {
+	/* 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;