page@swan.ulowell.edu (Bob Page) (03/15/89)
Submitted-by: well!sirius (Mike Stilson)
Posting-number: Volume 89, Issue 47
Archive-name: dos/fs/free.1
[Shows how much free space is left on your disk/s, like info.
uuencoded executable enclosed. ..Bob]
# This is a shell archive.
# Remove everything above and including the cut line.
# Then run the rest of the file through sh.
#----cut here-----cut here-----cut here-----cut here----#
#!/bin/sh
# shar: Shell Archiver
# Run the following text with /bin/sh to create:
# readme
# makefile
# Free.c
# Free.uu
# This archive created: Wed Mar 15 10:39:03 1989
cat << \SHAR_EOF > readme
Free (c) 1989 Mike 'Sirius' Stilson - Sirius Software
Purpose of this program:
I needed to know how much space was left on my disks. I wanted it in terms
of Bytes, not blocks. And telling me x% free (ala Info) didn't help much.
Usage:
Free [Devices]
If no argument is given, free gives info about the volume containing the
current directory.
The output is of the format:
Volume Name: Bytes Per Block:
Total bytes: Free Bytes:
Total blocks: Free Blocks:
Free can handle a list of devices. (Sorry.. no wildcards yet.)
such as:
Free Dh1: Dh2: Df0:
Hope you enjoy it, and let me know of any problems.
This compiles under Manx 3.6a Makefile is included.
Mike 'Sirius' Stilson - Sirius Software
uucp: sirius@well.UUCP
or: ...portal!cup.portal.com!sirius
SHAR_EOF
cat << \SHAR_EOF > makefile
CFLAGS=
LFLAGS=
all: Free.o
ln $(LFLAGS) Free.o -lc
SHAR_EOF
cat << \SHAR_EOF > Free.c
/* Free.c - (c) 1989 Mike 'Sirius' Stilson - Sirius Software
* Ver1.0 January 1989. Written, Tested, Debugged, Re-Tested, and Finished.
*
* Display free/total bytes for a volume.
*
* Notice:
* The author makes no claims or guarantees of the suitability of this
* program for any given application, and I assume no responsibility or
* liability for damages incurred through its usage.
*
* Feel free to steal any or all of this code and make millions of dollars
* from its sale and commercial use, but please.. Give credit where credit is
* due.
*
* Any similarity of this program, living, dead, deleted, or undead is purely
* coincidental and unintentional.
*
*/
#include <exec/types.h>
#include <exec/memory.h>
#include <libraries/dos.h>
#include <libraries/dosextens.h>
#include <functions.h>
struct InfoData *idata = NULL;
struct FileLock *mylock = NULL;
_wb_parse() {} /* We don't run from the wb.. */
main(ac,av) int ac; char **av;
{
char *GetName();
if(!(idata=(struct InfoData *)
AllocMem((long)sizeof(struct InfoData),(long)MEMF_CHIP|MEMF_CLEAR))) {
puts("Not enough memory.\n");
exit(20);
}
if(ac==1) goto once;
while(--ac > 0) {
once:
if(!(mylock=Lock(*++av,ACCESS_READ))) {
printf("Attempt to lock %s failed.\n",*av);
FreeMem(idata,(long)sizeof(struct InfoData));
exit(20);
}
if(!(Info(mylock,idata))) {
printf(Output(),"Unable to obtain info for device %s.\n",*av);
FreeMem(idata,(long)sizeof(struct InfoData));
UnLock(mylock);
exit(20);
}
printf("Volume Name: \2334;31;40m%s\2330;0;0m\t",GetName(mylock));
GetFree();
UnLock(mylock);
}
FreeMem(idata,(long)sizeof(struct InfoData));
exit(0);
}
/* Macro to convert a BPTR to a CString. Just for readability */
#define BPTR_TO_C(cast, var) ((struct cast *)(BADDR((ULONG)var)))
char *
GetName(lock)
struct FileLock *lock;
{
struct DeviceList *dl=NULL;
register char *p=NULL;
register char buf[80];
Forbid();
/* Since the InfoData structure points to a NULL BSTR all the time, this is
the only way I can think to get the volume name */
lock = BPTR_TO_C(FileLock, lock);
dl = BPTR_TO_C(DeviceList, lock->fl_Volume);
p = (char *)BADDR(dl->dl_Name);
movmem(p+1, buf, p[0]);
buf[p[0]] = '\0';
Permit();
return(buf);
}
GetFree()
{
register ULONG usedbytes=0, totalbytes=0, freebytes=0, bpb=0;
bpb=idata->id_BytesPerBlock;
usedbytes=bpb * idata->id_NumBlocksUsed;
totalbytes=bpb * idata->id_NumBlocks;
freebytes=totalbytes-usedbytes;
printf("Bytes per block: %-7ld\n",bpb);
printf("Total bytes: %-7ld\t\tFree Bytes: %-7ld\n",totalbytes,freebytes);
printf("Total blocks: %-7ld\t\tFree Blocks: %-7ld\n\n",idata->id_NumBlocks,
(idata->id_NumBlocks - idata->id_NumBlocksUsed));
}
SHAR_EOF
cat << \SHAR_EOF > Free.uu
begin 644 Free
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#``/RU
``
end
size 5628
SHAR_EOF
# End of shell archive
exit 0
--
Bob Page, U of Lowell CS Dept. page@swan.ulowell.edu ulowell!page
Have five nice days.