home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Tech Arsenal 1
/
Tech Arsenal (Arsenal Computer).ISO
/
tek-19
/
rcs55.zip
/
UNLINK.C
< prev
Wrap
C/C++ Source or Header
|
1991-09-15
|
668b
|
40 lines
/* DOS version of UNIX compatible unlink()
*
* Unlinks a file even if its attributes say READ-ONLY.
*
* NOTE: SMALL MEMORY MODEL ONLY
*/
#pragma inline
#include <dos.h>
static char RCSid[] = "$Id: unlink.c%v 1.2 1991/08/23 14:46:21 SGP Exp $";
int unlink (const char *fname)
{
/* Set file attributes to allow READ AND WRITE access */
asm {
mov cx,0; // Read & Write
mov dx,fname;
mov ax,4301h; // DOS Set File Attribute
int 21h;
};
/* Delete the file */
asm {
mov dx,fname;
mov ah,41h; // Delete file
int 21h;
jc delete_failed;
};
return (0);
delete_failed:
return (_AX);
}