(no commit message)

diff --git a/coders/meta.c b/coders/meta.c
index 571a614a838138dd4cf1cf9d813e0efe1694c275..c5634ee9e8ef76c8ee56ce34620a96d4f0cccf44 100644 (file)
--- a/coders/meta.c
+++ b/coders/meta.c
@@ -422,6 +422,8 @@ static ssize_t parse8BIM(Image *ifile, Image *ofile)
 
                     ssize_t diff = outputlen - savedolen;
                     currentpos = TellBlob(ofile);
+                    if (currentpos < 0)
+                      return(-1);
                     offset=SeekBlob(ofile,savedpos,SEEK_SET);
                     if (offset < 0)
                       return(-1);
@@ -471,6 +473,8 @@ static ssize_t parse8BIM(Image *ifile, Image *ofile)
                   {
                     /* patch in a fake length for now and fix it later */
                     savedpos = TellBlob(ofile);
+                    if (savedpos < 0)
+                      return(-1);
                     (void) WriteBlobMSBLong(ofile,0xFFFFFFFFU);
                     outputlen += 4;
                     savedolen = outputlen;
@@ -517,6 +521,8 @@ static ssize_t parse8BIM(Image *ifile, Image *ofile)
       ssize_t diff = outputlen - savedolen;
 
       currentpos = TellBlob(ofile);
+      if (currentpos < 0)
+        return(-1);
       offset=SeekBlob(ofile,savedpos,SEEK_SET);
       if (offset < 0)
         return(-1);
@@ -712,6 +718,8 @@ static ssize_t parse8BIMW(Image *ifile, Image *ofile)
 
                     ssize_t diff = outputlen - savedolen;
                     currentpos = TellBlob(ofile);
+                    if (currentpos < 0)
+                      return(-1);
                     offset=SeekBlob(ofile,savedpos,SEEK_SET);
                     if (offset < 0)
                       return(-1);
@@ -761,6 +769,8 @@ static ssize_t parse8BIMW(Image *ifile, Image *ofile)
                   {
                     /* patch in a fake length for now and fix it later */
                     savedpos = TellBlob(ofile);
+                    if (savedpos < 0)
+                      return(-1);
                     (void) WriteBlobMSBLong(ofile,0xFFFFFFFFU);
                     outputlen += 4;
                     savedolen = outputlen;
@@ -807,6 +817,8 @@ static ssize_t parse8BIMW(Image *ifile, Image *ofile)
       ssize_t diff = outputlen - savedolen;
 
       currentpos = TellBlob(ofile);
+      if (currentpos < 0)
+        return(-1);
       offset=SeekBlob(ofile,savedpos,SEEK_SET);
       if (offset < 0)
         return(-1);