gs: check for sufficient params in .sethalftone5
ghostscript bug 697203, upstream commit f5c7555c303
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1 changed files with 10 additions and 4 deletions
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@ -81,20 +81,26 @@ zsethalftone5(i_ctx_t *i_ctx_p)
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gs_memory_t *mem;
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uint edepth = ref_stack_count(&e_stack);
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int npop = 2;
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int dict_enum = dict_first(op);
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int dict_enum;
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ref rvalue[2];
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int cname, colorant_number;
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byte * pname;
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uint name_size;
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int halftonetype, type = 0;
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gs_state *pgs = igs;
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int space_index = r_space_index(op - 1);
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int space_index;
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if (ref_stack_count(&o_stack) < 2)
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return_error(e_stackunderflow);
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check_type(*op, t_dictionary);
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check_type(*(op - 1), t_dictionary);
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dict_enum = dict_first(op);
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space_index = r_space_index(op - 1);
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mem = (gs_memory_t *) idmemory->spaces_indexed[space_index];
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check_type(*op, t_dictionary);
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check_dict_read(*op);
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check_type(op[-1], t_dictionary);
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check_dict_read(op[-1]);
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/*
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