Blame src/headers/pe_get_image_entry_point_addr.c

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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--2020  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_structs.h>
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#include <pemagine/pe_consts.h>
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#include <pemagine/pemagine.h>
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void * pe_get_image_entry_point_addr(const void * base)
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{
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	uint16_t *		magic;
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	union pe_raw_opt_hdr *	hdr;
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	uint32_t *		rva;
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	if (!(hdr = pe_get_image_opt_hdr_addr(base)))
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		return 0;
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	magic = (uint16_t *)hdr;
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	switch (*magic) {
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		case PE_MAGIC_PE32:
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			rva = (uint32_t *)hdr->opt_hdr_32.coh_entry_point;
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			break;
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		case PE_MAGIC_PE32_PLUS:
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			rva = (uint32_t *)hdr->opt_hdr_64.coh_entry_point;
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			break;
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		default:
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			return 0;
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	}
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	return pe_va_from_rva(base,*rva);
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}