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406 lines (330 loc) · 11.6 KB
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/* mz_os.c -- System functions
Version 2.6.0, October 8, 2018
part of the MiniZip project
Copyright (C) 2010-2018 Nathan Moinvaziri
https://github.com/nmoinvaz/minizip
Copyright (C) 1998-2010 Gilles Vollant
https://www.winimage.com/zLibDll/minizip.html
This program is distributed under the terms of the same license as zlib.
See the accompanying LICENSE file for the full text of the license.
*/
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include "mz.h"
#include "mz_os.h"
#include "mz_strm.h"
#include "mz_strm_crc32.h"
/***************************************************************************/
static uint32_t mz_encoding_codepage437_to_utf8[256] = {
0x000000, 0xba98e2, 0xbb98e2, 0xa599e2, 0xa699e2, 0xa399e2, 0xa099e2, 0xa280e2,
0x9897e2, 0x8b97e2, 0x9997e2, 0x8299e2, 0x8099e2, 0xaa99e2, 0xab99e2, 0xbc98e2,
0xba96e2, 0x8497e2, 0x9586e2, 0xbc80e2, 0x00b6c2, 0x00a7c2, 0xac96e2, 0xa886e2,
0x9186e2, 0x9386e2, 0x9286e2, 0x9086e2, 0x9f88e2, 0x9486e2, 0xb296e2, 0xbc96e2,
0x000020, 0x000021, 0x000022, 0x000023, 0x000024, 0x000025, 0x000026, 0x000027,
0x000028, 0x000029, 0x00002a, 0x00002b, 0x00002c, 0x00002d, 0x00002e, 0x00002f,
0x000030, 0x000031, 0x000032, 0x000033, 0x000034, 0x000035, 0x000036, 0x000037,
0x000038, 0x000039, 0x00003a, 0x00003b, 0x00003c, 0x00003d, 0x00003e, 0x00003f,
0x000040, 0x000041, 0x000042, 0x000043, 0x000044, 0x000045, 0x000046, 0x000047,
0x000048, 0x000049, 0x00004a, 0x00004b, 0x00004c, 0x00004d, 0x00004e, 0x00004f,
0x000050, 0x000051, 0x000052, 0x000053, 0x000054, 0x000055, 0x000056, 0x000057,
0x000058, 0x000059, 0x00005a, 0x00005b, 0x00005c, 0x00005d, 0x00005e, 0x00005f,
0x000060, 0x000061, 0x000062, 0x000063, 0x000064, 0x000065, 0x000066, 0x000067,
0x000068, 0x000069, 0x00006a, 0x00006b, 0x00006c, 0x00006d, 0x00006e, 0x00006f,
0x000070, 0x000071, 0x000072, 0x000073, 0x000074, 0x000075, 0x000076, 0x000077,
0x000078, 0x000079, 0x00007a, 0x00007b, 0x00007c, 0x00007d, 0x00007e, 0x828ce2,
0x0087c3, 0x00bcc3, 0x00a9c3, 0x00a2c3, 0x00a4c3, 0x00a0c3, 0x00a5c3, 0x00a7c3,
0x00aac3, 0x00abc3, 0x00a8c3, 0x00afc3, 0x00aec3, 0x00acc3, 0x0084c3, 0x0085c3,
0x0089c3, 0x00a6c3, 0x0086c3, 0x00b4c3, 0x00b6c3, 0x00b2c3, 0x00bbc3, 0x00b9c3,
0x00bfc3, 0x0096c3, 0x009cc3, 0x00a2c2, 0x00a3c2, 0x00a5c2, 0xa782e2, 0x0092c6,
0x00a1c3, 0x00adc3, 0x00b3c3, 0x00bac3, 0x00b1c3, 0x0091c3, 0x00aac2, 0x00bac2,
0x00bfc2, 0x908ce2, 0x00acc2, 0x00bdc2, 0x00bcc2, 0x00a1c2, 0x00abc2, 0x00bbc2,
0x9196e2, 0x9296e2, 0x9396e2, 0x8294e2, 0xa494e2, 0xa195e2, 0xa295e2, 0x9695e2,
0x9595e2, 0xa395e2, 0x9195e2, 0x9795e2, 0x9d95e2, 0x9c95e2, 0x9b95e2, 0x9094e2,
0x9494e2, 0xb494e2, 0xac94e2, 0x9c94e2, 0x8094e2, 0xbc94e2, 0x9e95e2, 0x9f95e2,
0x9a95e2, 0x9495e2, 0xa995e2, 0xa695e2, 0xa095e2, 0x9095e2, 0xac95e2, 0xa795e2,
0xa895e2, 0xa495e2, 0xa595e2, 0x9995e2, 0x9895e2, 0x9295e2, 0x9395e2, 0xab95e2,
0xaa95e2, 0x9894e2, 0x8c94e2, 0x8896e2, 0x8496e2, 0x8c96e2, 0x9096e2, 0x8096e2,
0x00b1ce, 0x009fc3, 0x0093ce, 0x008
8000
0cf, 0x00a3ce, 0x0083cf, 0x00b5c2, 0x0084cf,
0x00a6ce, 0x0098ce, 0x00a9ce, 0x00b4ce, 0x9e88e2, 0x0086cf, 0x00b5ce, 0xa988e2,
0xa189e2, 0x00b1c2, 0xa589e2, 0xa489e2, 0xa08ce2, 0xa18ce2, 0x00b7c3, 0x8889e2,
0x00b0c2, 0x9988e2, 0x00b7c2, 0x9a88e2, 0xbf81e2, 0x00b2c2, 0xa096e2, 0x00a0c2
};
/***************************************************************************/
int32_t mz_path_combine(char *path, const char *join, int32_t max_path)
{
int32_t path_len = 0;
if (path == NULL || join == NULL || max_path == 0)
return MZ_PARAM_ERROR;
path_len = (int32_t)strlen(path);
if (path_len == 0)
{
strncpy(path, join, max_path - 1);
path[max_path - 1] = 0;
}
else
{
if (path[path_len - 1] != '\\' && path[path_len - 1] != '/')
strncat(path, "/", max_path - path_len - 1);
strncat(path, join, max_path - path_len);
}
return MZ_OK;
}
int32_t mz_path_compare_wc(const char *path, const char *wildcard, uint8_t ignore_case)
{
while (*path != 0)
{
switch (*wildcard)
{
case '*':
if (*(wildcard + 1) == 0)
return MZ_OK;
while (*path != 0)
{
if (mz_path_compare_wc(path, (wildcard + 1), ignore_case) == MZ_OK)
return MZ_OK;
path += 1;
}
return MZ_EXIST_ERROR;
default:
// Ignore differences in path slashes on platforms
if ((*path == '\\' && *wildcard == '/') || (*path == '/' && *wildcard == '\\'))
break;
if (ignore_case)
{
if (tolower(*path) != tolower(*wildcard))
return MZ_EXIST_ERROR;
}
else
{
if (*path != *wildcard)
return MZ_EXIST_ERROR;
}
break;
}
path += 1;
wildcard += 1;
}
if ((*wildcard != 0) && (*wildcard != '*'))
return MZ_EXIST_ERROR;
return MZ_OK;
}
int32_t mz_path_resolve(const char *path, char *output, int32_t max_output)
{
const char *source = path;
const char *check = output;
char *target = output;
if (max_output <= 0)
return MZ_PARAM_ERROR;
while (*source != 0 && max_output > 1)
{
check = source;
if ((*check == '\\') || (*check == '/'))
check += 1;
if ((source == path) || (check != source))
{
// Skip double paths
if ((*check == '\\') || (*check == '/'))
{
source += 1;
continue;
}
if ((*check != 0) && (*check == '.'))
{
check += 1;
// Remove current directory . if at end of string
if ((*check == 0) && (source != path))
{
// Copy last slash
*target = *source;
target += 1;
max_output -= 1;
source += (check - source);
continue;
}
// Remove current directory . if not at end of string
if ((*check == 0) || (*check == '\\' || *check == '/'))
{
// Only proceed if .\ is not entire string
if (check[1] != 0 || (path != source))
{
source += (check - source);
continue;
}
}
// Go to parent directory ..
if ((*check != 0) || (*check == '.'))
{
check += 1;
if ((*check == 0) || (*check == '\\' || *check == '/'))
{
source += (check - source);
// Search backwards for previous slash
if (target != output)
{
target -= 1;
do
{
if ((*target == '\\') || (*target == '/'))
break;
target -= 1;
max_output += 1;
}
while (target > output);
}
if ((target == output) && (*source != 0))
source += 1;
if ((*target == '\\' || *target == '/') && (*source == 0))
target += 1;
*target = 0;
continue;
}
}
}
}
*target = *source;
source += 1;
target += 1;
max_output -= 1;
}
*target = 0;
if (*path == 0)
return MZ_INTERNAL_ERROR;
return MZ_OK;
}
int32_t mz_path_remove_filename(char *path)
{
char *path_ptr = NULL;
if (path == NULL)
return MZ_PARAM_ERROR;
path_ptr = path + strlen(path) - 1;
while (path_ptr > path)
{
if ((*path_ptr == '/') || (*path_ptr == '\\'))
{
*path_ptr = 0;
break;
}
path_ptr -= 1;
}
return MZ_OK;
}
int32_t mz_path_get_filename(const char *path, const char **filename)
{
const char *match = NULL;
if (path == NULL || filename == NULL)
return MZ_PARAM_ERROR;
*filename = NULL;
for (match = path; *match != 0; match += 1)
{
if ((*match == '\\') || (*match == '/'))
*filename = match + 1;
}
if (*filename == NULL)
return MZ_EXIST_ERROR;
return MZ_OK;
}
int32_t mz_dir_make(const char *path)
{
int32_t err = MZ_OK;
int16_t len = 0;
char *current_dir = NULL;
char *match = NULL;
char hold = 0;
len = (int16_t)strlen(path);
if (len <= 0)
return 0;
current_dir = (char *)MZ_ALLOC((uint16_t)len + 1);
if (current_dir == NULL)
return MZ_MEM_ERROR;
strcpy(current_dir, path);
if (current_dir[len - 1] == '/')
current_dir[len - 1] = 0;
err = mz_os_make_dir(current_dir);
if (err != MZ_OK)
{
match = current_dir + 1;
while (1)
{
while (*match != 0 && *match != '\\' && *match != '/')
match += 1;
hold = *match;
*match = 0;
err = mz_os_make_dir(current_dir);
if (err != MZ_OK)
break;
if (hold == 0)
break;
*match = hold;
match += 1;
}
}
MZ_FREE(current_dir);
return err;
}
int32_t mz_file_get_crc(const char *path, uint32_t *result_crc)
{
void *stream = NULL;
void *crc32_stream = NULL;
int32_t read = 0;
int32_t err = MZ_OK;
uint8_t buf[16384];
mz_stream_os_create(&stream);
err = mz_stream_os_open(stream, path, MZ_OPEN_MODE_READ);
mz_stream_crc32_create(&crc32_stream);
mz_stream_crc32_open(crc32_stream, NULL, MZ_OPEN_MODE_READ);
mz_stream_set_base(crc32_stream, stream);
if (err == MZ_OK)
{
do
{
read = mz_stream_crc32_read(crc32_stream, buf, sizeof(buf));
if (read < 0)
{
err = read;
break;
}
}
while ((err == MZ_OK) && (read > 0));
mz_stream_os_close(stream);
}
mz_stream_crc32_close(crc32_stream);
*result_crc = mz_stream_crc32_get_value(crc32_stream);
mz_stream_crc32_delete(&crc32_stream);
mz_stream_os_delete(&stream);
return err;
}
int32_t mz_encoding_cp437_to_utf8(const char *source, char *target, int32_t max_target)
{
uint32_t utf8_char = 0;
uint8_t utf8_byte = 0;
uint8_t cp437_char = 0;
int32_t x = 0;
int32_t written = 0;
// Convert ibm codepage 437 encoding to utf-8
while (*source != 0)
{
cp437_char = (uint8_t)*source;
source += 1;
utf8_char = mz_encoding_codepage437_to_utf8[cp437_char];
for (x = 0; x < 32; x += 8)
{
utf8_byte = (uint8_t)(utf8_char >> x);
if (x > 0 && utf8_byte == 0)
continue;
if (max_target <= 1)
break;
target[written] = (char)utf8_byte;
written += 1;
max_target -= 1;
}
}
if (max_target > 0)
{
target[written] = 0;
written += 1;
}
return written;
}
/***************************************************************************/