/***
运行程序时，如果编绎成的可执行文件名为fdiv.exe
则
若按字节数分割，命令行例如 " fdiv d:\dire\file.nnn 2.5k "
若按块数分割， 命令行例如 " fdiv d:\dire\file.nnn (25) "
分割结果：
例如 把file.nnn 分成 5 块 结果为file#nnn.001 --> file#nnn.005
! 注意：每次分割不得超过 999 块。而且如果超过 31 块，将不生成批拷贝文件
! 被分割的文件的文件名如果超过 4 个字符, 最好把它改为 <=4 (不算扩展名)
因为 DOS 下文件名只识别前 8 个字符,如 file --> file#nnn
***/
#define BYTE 0
#define PIECE 1 /*** 定义分割类型标识 ***/
#include<stdio.h>
main(int argc,char **argv)
{
void fun (char *s); /*** 扩展名自加函数 ***/
FILE *fp_write,*fp_read,*fp_bat;
long num_in=0,byte_piece,pc_byte,total_byte;
int i,buffer=0,len,pc_fn=0,pc_float=0,byte_rest=0,sort_div;
char *fn_in,fn_out[50],p[]=".000",fn_bat[50],fn_obj_bat[12],str_rest_byte[3],str_pc_fn[3],ch;
switch (argc) /*** 命令行检测 ***/
{
case 3 : break;
case 2 :
printf ("\n ERROR! you forgot to enter the number\n"); exit (0);
case 1 :
printf ("\n ERROR! you forgot to enter the file name and the number\n");
exit (0);
}
fn_in=argv[1];
if ((fp_read=fopen(fn_in,"rb"))==NULL) /*** 打开被分割的文件 ***/
{ printf ("\n ERROR! the file not exists\n"); exit (0); }
fseek (fp_read,0L,2); total_byte=ftell (fp_read); rewind (fp_read);
if (*argv[2]=='\(') /*** 检测分割类型 ***/
{
sort_div=PIECE;
i=1;
while (argv[2][i]>='0'&&argv[2][i]<='9')
num_in=num_in*10+argv[2][i++]-'0'; /*** n 为输入的块数 ***/
if (argv[2][i]!='\)'&&argv[2][i])
{ printf ("\n ERROR! the entered NUMBER is invalid\n"); exit (0); }
if (num_in>999)
{ printf ("\n ERROR! can not creat more than 999 files\n"); exit (0); }
byte_rest=total_byte%num_in; byte_piece=total_byte/num_in; if (byte_rest>0) byte_piece++;
}
else
{
sort_div=BYTE;
i=0;
while (argv[2][i]>='0'&&argv[2][i]<='9') { num_in=num_in*10+argv[2][i]-'0'; i++; }
if (argv[2][i]=='.')
{
i++; while (argv[2][i]>='0'&&argv[2][i]<='9') { num_in=num_in*10+argv[2][i]-'0'; i++; pc_float++; }
}
ch=argv[2][i];
if (ch=='K'||ch=='k') num_in*=1024; if (ch=='M'||ch=='m') num_in=num_in*1024*1024;
if (ch&&ch!='.'&&ch!='k'&&ch!='K'&&ch!='m'&&ch!='M')
{ printf ("\n ERROR! the entered NUMBER is invalid\n"); exit (0); }
for (i=1;i<=pc_float;i++) num_in=num_in/10;
byte_piece=num_in;
if (total_byte%byte_piece==0) pc_fn=total_byte/byte_piece; else pc_fn=total_byte/byte_piece+1;
if (pc_fn>999)
{ printf ("\n ERROR! can not creat more than 999 files\n"); exit (0); }
}