X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=driver%2Fpasswd-kerberos.c;h=398fc3c29e5112d7fa35cc467f19f395cdf6b39d;hb=9c9d475ff889ed8be02e8ce8c17da28b93278fca;hp=cdb22b595d0ade04aa309caacd861e080f2bf9b7;hpb=96a411663168b0ba5432b407a83be55f3df0c802;p=xscreensaver

diff --git a/driver/passwd-kerberos.c b/driver/passwd-kerberos.c
index cdb22b59..398fc3c2 100644
--- a/driver/passwd-kerberos.c
+++ b/driver/passwd-kerberos.c
@@ -1,7 +1,6 @@
 /* kpasswd.c --- verify kerberos passwords.
  * written by Nat Lanza (magus@cs.cmu.edu) for
- * xscreensaver, Copyright (c) 1993-1997, 1998, 2000, 2003
- *  Jamie Zawinski <jwz@jwz.org>
+ * xscreensaver, Copyright (c) 1993-2004 Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -26,6 +25,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 
 /* I'm not sure if this is exactly the right test...
    Might __APPLE__ be defined if this is apple hardware, but not
@@ -192,6 +192,7 @@ kerberos_passwd_valid_p (const char *typed_passwd, Bool verbose_p)
     C_Block mitkey;
     Bool success;
     char *newtkfile;
+    int fh = -1;
 
     /* temporarily switch to a new ticketfile.
        I'm not using tmpnam() because it isn't entirely portable.
@@ -199,7 +200,19 @@ kerberos_passwd_valid_p (const char *typed_passwd, Bool verbose_p)
     newtkfile = malloc(80 * sizeof(char));
     memset(newtkfile, 0, sizeof(newtkfile));
 
-    sprintf(newtkfile, "/tmp/xscrn-%i", getpid());
+    sprintf(newtkfile, "/tmp/xscrn-%i.XXXXXX", getpid());
+
+    if( (fh = mkstemp(newtkfile)) < 0)
+    {
+        free(newtkfile);
+        return(False);
+    }
+    if( fchmod(fh, 0600) < 0)
+    {
+        free(newtkfile);
+        return(False);
+    }
+
 
     krb_set_tkt_string(newtkfile);
 
@@ -222,6 +235,7 @@ kerberos_passwd_valid_p (const char *typed_passwd, Bool verbose_p)
     krb_set_tkt_string(tk_file);
     free(newtkfile);
     memset(mitkey, 0, sizeof(mitkey));
+    close(fh); /* #### tom: should the file be removed? */
     
 
     /* Did we verify successfully? */