72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
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/******************************************************************************/
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/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
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/* This work has been released under the CC0 1.0 Universal license! */
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/******************************************************************************/
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN 1
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#define _CRT_SECURE_NO_WARNINGS 1
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#endif
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#include "utils.h"
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#include <sys/stat.h>
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#include <sys/types.h>
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#ifdef _WIN32
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#include <Windows.h>
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#endif
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void erase(void *const ptr, const size_t length)
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{
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volatile uint8_t* buffer = ptr;
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for (size_t i = 0U; i < length; ++i)
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{
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buffer[i] = 0U;
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}
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}
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char* utf16_to_bytes(const CHR*const input, const uint32_t code_page)
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{
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#ifdef _WIN32
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char* buffer;
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DWORD buffer_size = 0U, result = 0U;
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buffer_size = WideCharToMultiByte(code_page, 0, input, -1, NULL, 0, NULL, NULL);
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if (buffer_size < 1U)
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{
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return NULL;
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}
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buffer = (char*)malloc(sizeof(char) * buffer_size);
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if (!buffer)
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{
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return NULL;
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}
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result = WideCharToMultiByte(code_page, 0, input, -1, (LPSTR)buffer, buffer_size, NULL, NULL);
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if ((result > 0U) && (result <= buffer_size))
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{
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return buffer;
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}
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free(buffer);
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return NULL;
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#else
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return strdup(input);
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#endif
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}
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uint64_t get_file_size(FILE *const file)
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{
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STAT64_T stat;
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if (FSTAT64(FILENO(file), &stat) != 0)
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{
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return UINT64_MAX;
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}
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uint16_t file_type = stat.st_mode & _S_IFMT;
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if ((file_type != _S_IFDIR) && (file_type != _S_IFIFO))
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{
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return (stat.st_size >= 0LL) ? ((uint64_t)stat.st_size) : 0U;
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}
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return 0U;
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}
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