X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=daemon%2Fstrings.c;h=f08401b2835b92fbac740cac303fe55f97938930;hp=1ba02419e8fb81c77b9edb3001e165ee7fba02a5;hb=53c524819323dcea8d5e3d56ff4fc6cf49b6c64f;hpb=26991ebb8181b57f4c8454f2862c938d7c5d012d

diff --git a/daemon/strings.c b/daemon/strings.c
index 1ba0241..f08401b 100644
--- a/daemon/strings.c
+++ b/daemon/strings.c
@@ -34,6 +34,12 @@ do_strings_e (const char *encoding, const char *path)
   char *out, *err;
   char **lines;
 
+  if (strlen (encoding) != 1 ||
+      strchr ("sSblBL", encoding[0]) == NULL) {
+    reply_with_error ("%s: invalid encoding", encoding);
+    return NULL;
+  }
+
   CHROOT_IN;
   fd = open (path, O_RDONLY);
   CHROOT_OUT;