tree dumping goes to stderr

diff --git a/dwarf_prototypes.c b/dwarf_prototypes.c
index 86a996f..36c44b9 100644 (file)
--- a/dwarf_prototypes.c
+++ b/dwarf_prototypes.c
@@ -51,7 +51,7 @@ static bool _dump_dwarf_tree(Dwarf_Die* die, int indent)
 {
     while(1)
     {
-        printf("%*sprocessing unit: 0x%02x/'%s'\n", indent*4, "",
+        fprintf(stderr, "%*sprocessing unit: 0x%02x/'%s'\n", indent*4, "",
                dwarf_tag(die), dwarf_diename(die) );
 
         Dwarf_Die child;
@@ -79,20 +79,20 @@ static bool _dump_ltrace_tree( const struct arg_type_info* info, int indent )
 {
        if( indent > 7 )
        {
-               printf("%*s%p ...\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p ...\n", indent*4, "", (void*)info);
                return true;
        }
 
        if( info == NULL )
        {
-               printf("%*s%p NULL\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p NULL\n", indent*4, "", (void*)info);
                return true;
        }
 
        switch(info->type)
        {
        case ARGTYPE_VOID:
-               printf("%*s%p void\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p void\n", indent*4, "", (void*)info);
                break;
 
        case ARGTYPE_INT:
@@ -104,20 +104,20 @@ static bool _dump_ltrace_tree( const struct arg_type_info* info, int indent )
        case ARGTYPE_USHORT:
        case ARGTYPE_FLOAT:
        case ARGTYPE_DOUBLE:
-               printf("%*s%p base\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p base\n", indent*4, "", (void*)info);
                break;
 
        case ARGTYPE_ARRAY:
-               printf("%*s%p array. elements not printed\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p array. elements not printed\n", indent*4, "", (void*)info);
                break;
 
        case ARGTYPE_POINTER:
-               printf("%*s%p pointer to...\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p pointer to...\n", indent*4, "", (void*)info);
                _dump_ltrace_tree( info->u.ptr_info.info, indent+1 );
                break;
 
        case ARGTYPE_STRUCT:
-               printf("%*s%p struct...\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p struct...\n", indent*4, "", (void*)info);
                struct struct_field
                {
                        struct arg_type_info *info;
@@ -129,7 +129,7 @@ static bool _dump_ltrace_tree( const struct arg_type_info* info, int indent )
                break;
 
        default:
-               printf("%*s%p unknown type\n", indent*4, "", (void*)info);
+               fprintf(stderr, "%*s%p unknown type\n", indent*4, "", (void*)info);
                return false;;
        }