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294 lines (250 loc) · 7.11 KB
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Copy pathminishared.c
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294 lines (250 loc) · 7.11 KB
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#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <fcntl.h>
#include "zlib.h"
#include "ioapi.h"
#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
# ifndef __USE_FILE_OFFSET64
# define __USE_FILE_OFFSET64
# endif
# ifndef __USE_LARGEFILE64
# define __USE_LARGEFILE64
# endif
# ifndef _LARGEFILE64_SOURCE
# define _LARGEFILE64_SOURCE
# endif
# ifndef _FILE_OFFSET_BIT
# define _FILE_OFFSET_BIT 64
# endif
#endif
#ifdef _WIN32
# include <direct.h>
# include <io.h>
#else
# include <unistd.h>
# include <utime.h>
# include <sys/types.h>
# include <sys/stat.h>
#endif
#include "minishared.h"
#ifdef _WIN32
# define USEWIN32IOAPI
# include "iowin32.h"
#endif
uint32_t get_file_date(const char *path, uint32_t *dos_date)
{
int ret = 0;
#ifdef _WIN32
FILETIME ftm_local;
HANDLE find = NULL;
WIN32_FIND_DATAA ff32;
find = FindFirstFileA(path, &ff32);
if (find != INVALID_HANDLE_VALUE)
{
FileTimeToLocalFileTime(&(ff32.ftLastWriteTime), &ftm_local);
FileTimeToDosDateTime(&ftm_local, ((LPWORD)dos_date) + 1, ((LPWORD)dos_date) + 0);
FindClose(find);
ret = 1;
}
#else
#if defined unix || defined __APPLE__
struct stat s = { 0 };
struct tm *filedate = NULL;
time_t tm_t = 0;
if (strcmp(path, "-") != 0)
{
size_t len = strlen(path);
char *name = (char *)malloc(len + 1);
strncpy(name, path, len + 1);
name[len] = 0;
if (name[len - 1] == '/')
name[len - 1] = 0;
/* not all systems allow stat'ing a file with / appended */
if (stat(name, &s) == 0)
{
tm_t = s.st_mtime;
ret = 1;
}
free(name);
}
filedate = localtime(&tm_t);
*dosdate = tm_to_dosdate(filedate);
#endif
#endif
return ret;
}
void change_file_date(const char *path, uint32_t dos_date)
{
#ifdef _WIN32
HANDLE handle = NULL;
FILETIME ftm, ftm_local, ftm_create, ftm_access, ftm_modified;
handle = CreateFileA(path, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
if (handle != INVALID_HANDLE_VALUE)
{
GetFileTime(handle, &ftm_create, &ftm_access, &ftm_modified);
DosDateTimeToFileTime((WORD)(dos_date >> 16), (WORD)dos_date, &ftm_local);
LocalFileTimeToFileTime(&ftm_local, &ftm);
SetFileTime(handle, &ftm, &ftm_access, &ftm);
CloseHandle(handle);
}
#else
#if defined unix || defined __APPLE__
struct utimbuf ut;
struct tm newdate;
dosdate_to_tm(dos_date, &newdate);
ut.actime = ut.modtime = mktime(&newdate);
utime(path, &ut);
#endif
#endif
}
int dosdate_to_tm(uint64_t dos_date, struct tm *ptm)
{
uint64_t date = (uint64_t)(dos_date >> 16);
ptm->tm_mday = (uint16_t)(date & 0x1f);
ptm->tm_mon = (uint16_t)(((date & 0x1E0) / 0x20) - 1);
ptm->tm_year = (uint16_t)(((date & 0x0FE00) / 0x0200) + 1980);
ptm->tm_hour = (uint16_t)((dos_date & 0xF800) / 0x800);
ptm->tm_min = (uint16_t)((dos_date & 0x7E0) / 0x20);
ptm->tm_sec = (uint16_t)(2 * (dos_date & 0x1f));
ptm->tm_isdst = -1;
#define datevalue_in_range(min, max, value) ((min) <= (value) && (value) <= (max))
if (!datevalue_in_range(0, 11, ptm->tm_mon) ||
!datevalue_in_range(1, 31, ptm->tm_mday) ||
!datevalue_in_range(0, 23, ptm->tm_hour) ||
!datevalue_in_range(0, 59, ptm->tm_min) ||
!datevalue_in_range(0, 59, ptm->tm_sec))
{
/* Invalid date stored, so don't return it. */
memset(ptm, 0, sizeof(struct tm));
return -1;
}
#undef datevalue_in_range
return 0;
}
uint32_t tm_to_dosdate(const struct tm *ptm)
{
uint32_t year = 0;
#define datevalue_in_range(min, max, value) ((min) <= (value) && (value) <= (max))
/* Years supported:
* [00, 79] (assumed to be between 2000 and 2079)
* [80, 207] (assumed to be between 1980 and 2107, typical output of old
software that does 'year-1900' to get a double digit year)
* [1980, 2107]
Due to the date format limitations, only years between 1980 and 2107 can be stored.
*/
if (!(datevalue_in_range(1980, 2107, ptm->tm_year) || datevalue_in_range(0, 207, ptm->tm_year)) ||
!datevalue_in_range(0, 11, ptm->tm_mon) ||
!datevalue_in_range(1, 31, ptm->tm_mday) ||
!datevalue_in_range(0, 23, ptm->tm_hour) ||
!datevalue_in_range(0, 59, ptm->tm_min) ||
!datevalue_in_range(0, 59, ptm->tm_sec))
{
return 0;
}
#undef datevalue_in_range
year = (uint32_t)ptm->tm_year;
if (year >= 1980) /* range [1980, 2107] */
year -= 1980;
else if (year >= 80) /* range [80, 99] */
year -= 80;
else /* range [00, 79] */
year += 20;
return (uint32_t)(((ptm->tm_mday) + (32 * (ptm->tm_mon + 1)) + (512 * year)) << 16) |
((ptm->tm_sec / 2) + (32 * ptm->tm_min) + (2048 * (uint32_t)ptm->tm_hour));
}
int makedir(const char *newdir)
{
char *buffer = NULL;
char *p = NULL;
int len = (int)strlen(newdir);
if (len <= 0)
return 0;
buffer = (char*)malloc(len + 1);
if (buffer == NULL)
{
printf("Error allocating memory\n");
return -1;
}
strcpy(buffer, newdir);
if (buffer[len - 1] == '/')
buffer[len - 1] = 0;
if (MKDIR(buffer) == 0)
{
free(buffer);
return 1;
}
p = buffer + 1;
while (1)
{
char hold;
while (*p && *p != '\\' && *p != '/')
p++;
hold = *p;
*p = 0;
if ((MKDIR(buffer) == -1) && (errno == ENOENT))
{
printf("couldn't create directory %s (%d)\n", buffer, errno);
free(buffer);
return 0;
}
if (hold == 0)
break;
*p++ = hold;
}
free(buffer);
return 1;
}
int check_file_exists(const char *path)
{
FILE* ftestexist = FOPEN_FUNC(path, "rb");
if (ftestexist == NULL)
return 0;
fclose(ftestexist);
return 1;
}
int is_large_file(const char *path)
{
uint64_t pos = 0;
FILE* pFile = FOPEN_FUNC(path, "rb");
if (pFile == NULL)
return 0;
FSEEKO_FUNC(pFile, 0, SEEK_END);
pos = FTELLO_FUNC(pFile);
fclose(pFile);
printf("file : %s is %lld bytes\n", path, pos);
return (pos >= UINT32_MAX);
}
int get_file_crc(const char *path, void *buf, uint32_t size_buf, uint32_t *result_crc)
{
FILE *fin = NULL;
uint32_t calculate_crc = 0;
uint32_t size_read = 0;
int err = 0;
fin = FOPEN_FUNC(path, "rb");
if (fin == NULL)
err = -1;
else
{
do
{
size_read = (int)fread(buf, 1, size_buf, fin);
if ((size_read < size_buf) && (feof(fin) == 0))
{
printf("error in reading %s\n", path);
err = -1;
}
if (size_read > 0)
calculate_crc = crc32(calculate_crc, buf, size_read);
}
while ((err == Z_OK) && (size_read > 0));
}
if (fin)
fclose(fin);
printf("file %s crc %lx\n", path, calculate_crc);
*result_crc = calculate_crc;
return err;
}