doscopy.c
来源：互联网 发布：linux lnmp环境搭建 编辑：程序博客网 时间：2024/04/30 00:30
<iframe name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"></iframe> #include <stdio.h>
#include <dos.h>
#include <fcntl.h>
void main(int argc, char *argv[])
{
char buffer[1024];
int input, output; // file handles
unsigned bytes_read, bytes_written; // actual number of bytes transferred
if (argc < 3)
fprintf(stderr, "Must specify source and target file/n");
else if (_dos_open (argv[1], O_RDONLY, &input))
fprintf(stderr, "Error opening source file/n");
else if (_dos_creat (argv[2], 0, &output))
fprintf(stderr, "Error opening target file/n");
else
{
while (!_dos_read(input, buffer, sizeof(buffer), &bytes_read))
{
if (bytes_read == 0)
break;
_dos_write(output, buffer, bytes_read, &bytes_written);
}
_dos_close(input);
_dos_close(output);
}
}
