0001-alloca-to-malloc-in-vorbis_book_init_decode.patch

Enable keyboard shortcuts

diff --git a/lib/sharedbook.c b/lib/sharedbook.c

index 7a98b479..abe4c24d 100644

--- a/lib/sharedbook.c

+++ b/lib/sharedbook.c

@@ -352,9 +352,13 @@ int vorbis_book_init_decode(codebook *c,const static_codebook *s){

     /* perform sort */

     ogg_uint32_t *codes=_make_words(s->lengthlist,s->entries,c->used_entries);

-    ogg_uint32_t **codep=alloca(sizeof(*codep)*n);

+    ogg_uint32_t **codep=_ogg_malloc(sizeof(*codep)*n);

-    if(codes==NULL)goto err_out;

+    if(codes==NULL || codep==NULL){

+      if(codes)_ogg_free(codes);

+      if(codep)_ogg_free(codep);

+      goto err_out;

+    }

     for(i=0;i<n;i++){

       codes[i]=bitreverse(codes[i]);

@@ -363,13 +367,19 @@ int vorbis_book_init_decode(codebook *c,const static_codebook *s){

     qsort(codep,n,sizeof(*codep),sort32a);

-    sortindex=alloca(n*sizeof(*sortindex));

+    sortindex=_ogg_malloc(n*sizeof(*sortindex));

+    if(sortindex==NULL){

+      _ogg_free(codes);

+      _ogg_free(codep);

+      goto err_out;

+    }

     c->codelist=_ogg_malloc(n*sizeof(*c->codelist));

     /* the index is a reverse index */

     for(i=0;i<n;i++){

       int position=codep[i]-codes;

       sortindex[position]=i;

+    _ogg_free(codep);

     for(i=0;i<n;i++)

       c->codelist[sortindex[i]]=codes[i];

@@ -390,6 +400,7 @@ int vorbis_book_init_decode(codebook *c,const static_codebook *s){

         if(s->lengthlist[i]>c->dec_maxlength)

           c->dec_maxlength=s->lengthlist[i];

+    _ogg_free(sortindex);

     if(n==1 && c->dec_maxlength==1){

       /* special case the 'single entry codebook' with a single bit