/***************************************************************/

/*  perk: PE Resource Kit                                      */

/*  Copyright (C) 2015--2017  Z. Gilboa                        */

/*  Released under GPLv2 and GPLv3; see COPYING.PERK.          */

/***************************************************************/

#include <string.h>

#include <stdbool.h>

#include <perk/perk.h>

#include <perk/perk_meta.h>

static const char * const pe_framework_str[PE_FRAMEWORK_CAP] = {

	[PE_FRAMEWORK_UNKNOWN]  = "unknown",

	[PE_FRAMEWORK_FREESTD]  = "freestd",

	[PE_FRAMEWORK_PSXSCL]   = "psxscl",

	[PE_FRAMEWORK_MIDIPIX]  = "midipix",

	[PE_FRAMEWORK_CYGONE]   = "cygone",

	[PE_FRAMEWORK_CYGWIN]   = "cygwin",

	[PE_FRAMEWORK_MINGW]    = "mingw",

	[PE_FRAMEWORK_MSYS]     = "msys",

	[PE_FRAMEWORK_SUACON]   = "suacon",

	[PE_FRAMEWORK_WINCON]   = "wincon",

	[PE_FRAMEWORK_WINCLI]   = "wincli",

	[PE_FRAMEWORK_WIN32]    = "win32",

};

static bool pe_image_is_psxscl(const struct pe_image_meta * m)

{

	return (!m->summary.nimplibs

		&& !pe_get_expsym_by_name(m,"__psx_init",0));

}

static bool pe_image_is_cygwin(const struct pe_image_meta * m)

{

	int i;

	for (i=0; i<m->summary.nimplibs; i++)

		if (!(strcmp(m->idata[i].ih_name,"cygwin1.dll")))

			return true;

	return false;

}

static bool pe_image_is_msys(const struct pe_image_meta * m)

{

	int i;

	for (i=0; i<m->summary.nimplibs; i++)

		if (!(strcmp(m->idata[i].ih_name,"msys-2.0.dll")))

			return true;

	return false;

}

static bool pe_image_is_mingw(const struct pe_image_meta * m)

{

	return ((pe_get_named_section_index(m,".CRT") >= 0)

		&& (pe_get_named_section_index(m,".bss") >= 0)

		&& (pe_get_named_section_index(m,".tls") >= 0));

}

int pe_get_image_framework(const struct pe_image_meta * m, struct pe_info_string * infostr)

{

	int framework;

	if (pe_get_named_section_index(m,".midipix") >= 0)

		framework = PE_FRAMEWORK_MIDIPIX;

	else if (pe_get_named_section_index(m,".freestd") >= 0)

		framework = PE_FRAMEWORK_FREESTD;

	else if (pe_get_named_section_index(m,".cygheap") >= 0)

		framework = PE_FRAMEWORK_CYGONE;

	else if (pe_image_is_psxscl(m))

		framework = PE_FRAMEWORK_PSXSCL;

	else if (pe_image_is_cygwin(m))

		framework = PE_FRAMEWORK_CYGWIN;

	else if (pe_image_is_msys(m))

		framework = PE_FRAMEWORK_MSYS;

	else if (pe_image_is_mingw(m))

		framework = PE_FRAMEWORK_MINGW;

	else if (m->opt.oh_img.coh_subsystem == PE_IMAGE_SUBSYSTEM_POSIX_CUI)

		framework = PE_FRAMEWORK_SUACON;

	else if (m->opt.oh_img.coh_subsystem == PE_IMAGE_SUBSYSTEM_WINDOWS_CUI)

		framework = PE_FRAMEWORK_WINCON;

	else if (m->opt.oh_img.coh_subsystem == PE_IMAGE_SUBSYSTEM_WINDOWS_GUI)

		framework = PE_FRAMEWORK_WIN32;

	else

		framework = PE_FRAMEWORK_UNKNOWN;

	if (infostr)

		strcpy(infostr->buffer,pe_framework_str[framework]);

	return framework;

}