63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
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#define WIN32_LEAN_AND_MEAN
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#define WIN32_EXTRA_LEAN
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#include <windows.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <malloc.h>
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HANDLE hFile;
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DWORD dwWritten;
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UINT nSize;
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DWORD nBlocks;
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LPBYTE pbyBuffer;
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UINT main(int argc, char *argv[])
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{
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if (argc != 3)
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{
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printf("Usage:\n\t%s <filename> <size_in_kb>\n", argv[0]);
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return 1;
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}
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nSize = atoi(argv[2]);
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switch (nSize)
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{
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case 128:
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nBlocks = 64;
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break;
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case 256:
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nBlocks = 128;
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break;
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case 512:
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nBlocks = 256;
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break;
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case 1024:
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nBlocks = 512;
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break;
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case 2048:
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nBlocks = 1024;
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break;
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case 4096:
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nBlocks = 2048;
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break;
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default:
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puts("Error: Valid sizes are 128, 256, 512, 1024, 2048 and 4096.\n");
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return 0;
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}
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hFile = CreateFile(argv[1],GENERIC_WRITE,0,NULL,CREATE_ALWAYS,0,NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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{
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printf("Cannot open file %s.\n", argv[1]);
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return 1;
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}
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pbyBuffer = LocalAlloc(LPTR,4096);
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while (nBlocks--) WriteFile(hFile, pbyBuffer, 4096, &dwWritten, NULL);
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CloseHandle(hFile);
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printf("Done.");
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return 0;
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}
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