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// license:BSD-3-Clause
// copyright-holders:Raphael Nabet
/****************************************************************************
macutil.cpp
Imgtool Utility code for manipulating certain Apple/Mac data structures
and conventions
*****************************************************************************/
#include "macutil.h"
#include "timeconv.h"
typedef util::arbitrary_clock<std::uint32_t, 1904, 1, 1, 0, 0, 0, std::ratio<1, 1> > classic_mac_clock;
time_t mac_crack_time(uint32_t t)
{
classic_mac_clock::duration d(t);
std::chrono::time_point<std::chrono::system_clock> tp = classic_mac_clock::to_system_clock(std::chrono::time_point<classic_mac_clock>(d));
return std::chrono::system_clock::to_time_t(tp);
}
uint32_t mac_setup_time(time_t t)
{
auto system_time_point = std::chrono::system_clock::from_time_t(t);
auto mac_time_point = classic_mac_clock::from_system_clock(system_time_point);
return mac_time_point.time_since_epoch().count();
}
uint32_t mac_time_now(void)
{
time_t now;
time(&now);
return mac_setup_time(now);
}
imgtoolerr_t mac_identify_fork(const char *fork_string, mac_fork_t *fork_num)
{
if (!strcmp(fork_string, ""))
*fork_num = MAC_FORK_DATA;
else if (!strcmp(fork_string, "RESOURCE_FORK"))
*fork_num = MAC_FORK_RESOURCE;
else
return IMGTOOLERR_FORKNOTFOUND;
return IMGTOOLERR_SUCCESS;
}
void mac_suggest_transfer(mac_filecategory_t file_category, imgtool_transfer_suggestion *suggestions, size_t suggestions_length)
{
suggestions[0].viability = (file_category == MAC_FILECATEGORY_FORKED) ? SUGGESTION_RECOMMENDED : SUGGESTION_POSSIBLE;
suggestions[0].filter = filter_macbinary_getinfo;
suggestions[0].fork = NULL;
suggestions[0].description = NULL;
suggestions[1].viability = (file_category == MAC_FILECATEGORY_TEXT) ? SUGGESTION_RECOMMENDED : SUGGESTION_POSSIBLE;
suggestions[1].filter = filter_eoln_getinfo;
suggestions[1].fork = NULL;
suggestions[1].description = NULL;
suggestions[2].viability = (file_category == MAC_FILECATEGORY_DATA) ? SUGGESTION_RECOMMENDED : SUGGESTION_POSSIBLE;
suggestions[2].filter = NULL;
suggestions[2].fork = "";
suggestions[2].description = "Raw (data fork)";
suggestions[3].viability = SUGGESTION_POSSIBLE;
suggestions[3].filter = NULL;
suggestions[3].fork = "RESOURCE_FORK";
suggestions[3].description = "Raw (resource fork)";
}
void pascal_from_c_string(unsigned char *pstring, size_t pstring_len, const char *cstring)
{
size_t cstring_len, i;
cstring_len = strlen(cstring);
pstring[0] = std::min(cstring_len, pstring_len - 1);
for (i = 0; i < pstring[0]; i++)
pstring[1 + i] = cstring[i];
while(i < pstring_len - 1)
pstring[1 + i++] = '\0';
}
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