cp.c

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/*
 * cp - Copy a file
 * Copyright (c) 2003, Jeffrey K. Hollingsworth <[e-mail]>
 * Copyright (c) 2004, David H. Hovemeyer <[e-mail]>
 * $Revision: 1.10 $
 * 
 * This is free software.  You are permitted to use,
 * redistribute, and modify it as specified in the file "COPYING".
 */

#include <conio.h>
#include <process.h>
#include <fileio.h>

int main(int argc, char *argv[])
{
    int ret;
    int read;
    int inFd;
    int outFd;
    struct VFS_File_Stat stat;
    char buffer[1024];

    if (argc != 3) {
        Print("usage: cp <file1> <file2>\n");
	Exit (1);
    }

    inFd = Open(argv[1], O_READ);
    if (inFd < 0) {
        Print ("Error: Unable to open %s: %s\n", argv[1], Get_Error_String(inFd));
	Exit(1);
    }

    ret = FStat(inFd, &stat); 
    if (ret != 0) {
        Print ("Error: could not stat file %s: %s\n", argv[1], Get_Error_String(ret));
	Exit(1);
    }
    if (stat.isDirectory) {
        Print ("Error: cp can not copy directories\n");
	Exit(1);
    }

    /* now open destination file */
    outFd = Open(argv[2], O_WRITE|O_CREATE);
    if (outFd < 0) {
        Print ("Error: unable to open %s: %s", argv[2], Get_Error_String(outFd));
	Exit(1);
    }

    for (read =0; read < stat.size; read += ret) {
        ret = Read(inFd, buffer, sizeof(buffer));
	if (ret < 0) {
	    Print("Error reading file for copy: %s\n", Get_Error_String(ret));
	    Exit(1);
	}

	ret = Write(outFd, buffer, ret);
	if (ret < 0) {
	    Print("Error writing file for copy: %s\n", Get_Error_String(ret));
	    Exit(1);
	}
    }

    Close(inFd);
    Close(outFd);

    return 0;
}