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$NetBSD: patch-ad,v 1.8 2006/11/01 13:32:32 tron Exp $
--- lib.c.orig 2002-04-29 18:12:18.000000000 +0100
+++ lib.c 2006-11-01 13:22:51.000000000 +0000
@@ -351,8 +351,8 @@
struct stat osb, nsb;
int fd;
- if ((fd = open (path, flags, 0600)) < 0)
- return fd;
+ if ((fd = open (path, flags, S_IRUSR|S_IWUSR)) < 0)
+ return (-1);
/* make sure the file is not symlink */
if (lstat (path, &osb) < 0 || fstat (fd, &nsb) < 0 ||
@@ -363,6 +363,13 @@
return (-1);
}
+ /* Make sure the file is owned by us and has save permissions. */
+ if (nsb.st_uid != geteuid() ||
+ (nsb.st_mode & (S_IRWXG|S_IRWXO)) != 0) {
+ close (fd);
+ return (-1);
+ }
+
return (fd);
}
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