Add:map_binfile:Better diagnostics in case of problems

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@4827 ffa7fe5e-494d-0410-b361-a75ebd5db220

diff --git a/navit/navit/map/binfile/binfile.c b/navit/navit/map/binfile/binfile.c
index e243d50..4ae56d7 100644 (file)
--- a/navit/navit/map/binfile/binfile.c
+++ b/navit/navit/map/binfile/binfile.c
@@ -198,6 +198,7 @@ binfile_read_eoc(struct file *fi)
                eoc_to_cpu(eoc);
                dbg(1,"sig 0x%x\n", eoc->zipesig);
                if (eoc->zipesig != zip_eoc_sig) {
+                       dbg(0,"eoc signature check failed: 0x%x vs 0x%x\n",eoc->zipesig,zip_eoc_sig);
                        file_data_free(fi,(unsigned char *)eoc);
                        eoc=NULL;
                }
@@ -2251,8 +2252,10 @@ map_binfile_zip_setup(struct map_priv *m, char *filename, int mmap)
 {
        struct zip_cd *first_cd;
        int i;
-       if (!(m->eoc=binfile_read_eoc(m->fi)))
+       if (!(m->eoc=binfile_read_eoc(m->fi))) {
+               dbg(0,"unable to read eoc\n");
                return 0;
+       }
        dbg_assert(m->eoc->zipedsk == m->eoc->zipecen);
        if (m->eoc->zipedsk && strlen(filename) > 3) {
                char *tmpfilename=g_strdup(filename),*ext=tmpfilename+strlen(tmpfilename)-3;
@@ -2268,10 +2271,14 @@ map_binfile_zip_setup(struct map_priv *m, char *filename, int mmap)
        }
        dbg(1,"num_disk %d\n",m->eoc->zipedsk);
        m->eoc64=binfile_read_eoc64(m->fi);
-       if (!binfile_get_index(m))
+       if (!binfile_get_index(m)) {
+               dbg(0,"no index found\n");
                return 0;
-       if (!(first_cd=binfile_read_cd(m, 0, 0)))
+       }
+       if (!(first_cd=binfile_read_cd(m, 0, 0))) {
+               dbg(0,"unable to get first cd\n");
                return 0;
+       }
        m->cde_size=sizeof(struct zip_cd)+first_cd->zipcfnl+first_cd->zipcxtl;
        m->zip_members=m->index_offset/m->cde_size+1;
        dbg(1,"cde_size %d\n", m->cde_size);