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/*****************************************************************************/
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/* pemagination: a (virtual) tour into portable bits and executable bytes */
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/* Copyright (C) 2013,2014,2015 Z. Gilboa */
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/* Released under GPLv2 and GPLv3; see COPYING.PEMAGINE. */
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/*****************************************************************************/
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#include <psxtypes/psxtypes.h>
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#include <pemagine/pe_consts.h>
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#include <pemagine/pe_structs.h>
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#include <pemagine/pemagine.h>
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pe_api
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int pe_enum_image_exports(
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const void * base,
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pe_enum_image_exports_callback * callback,
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struct pe_export_sym * sym,
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void * ctx)
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{
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struct pe_export_hdr * exp_hdr;
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uint32_t * count;
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uint32_t * fn_addr;
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uint32_t * fn_names;
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uint16_t * fn_ordinals;
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uint32_t * offset;
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uint32_t idx;
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int ret;
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if (!(exp_hdr = pe_get_image_export_hdr_addr(base,0))) {
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callback(base,0,0,PE_CALLBACK_REASON_ERROR,ctx);
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return -1;
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}
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offset = (uint32_t *)(exp_hdr->export_addr_tbl_rva);
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fn_addr = (uint32_t *)pe_va_from_rva(base,*offset);
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offset = (uint32_t *)(exp_hdr->name_ptr_rva);
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fn_names = (uint32_t *)pe_va_from_rva(base,*offset);
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offset = (uint32_t *)(exp_hdr->ordinal_tbl_rva);
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fn_ordinals = (uint16_t *)pe_va_from_rva(base,*offset);
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if ((ret = callback(base,exp_hdr,0,PE_CALLBACK_REASON_INIT,ctx)) <= 0)
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return ret;
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count = (uint32_t *)exp_hdr->num_of_name_ptrs;
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sym->ordinal_base = (uint32_t *)exp_hdr->ordinal_base;
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for (idx=0; idx<*count; idx++) {
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offset = (uint32_t *)pe_va_from_rva(fn_names,idx*sizeof(uint32_t));
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sym->name = (char *)pe_va_from_rva(base,*offset);
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sym->ordinal = (uint16_t *)pe_va_from_rva(fn_ordinals,idx*sizeof(uint16_t));
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offset = (uint32_t *)pe_va_from_rva(fn_addr,(*sym->ordinal)*sizeof(uint32_t));
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sym->addr = pe_va_from_rva(base,*offset);
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if ((ret = callback(base,exp_hdr,sym,PE_CALLBACK_REASON_ITEM,ctx)) <= 0)
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return ret;
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}
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return callback(base,exp_hdr,sym,PE_CALLBACK_REASON_DONE,ctx);
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}
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