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- /* --------------------------------- -------
- * |\ | | | | | |.| | \| |/ /|\ |||||||
- * | | | |/ | |\ |/ |/| |\ |/ | ? ---+--- =<
- * | | | | | | | | | | | \qqqqqqqqq/
- * --------------------------------- ~~~~~~~~~~~~~~~~
- * Usage - Estimate disk space usage.
- * Copyright (C) 1993 Torsten Poulin
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * The author can be contacted by s-mail at
- * Torsten Poulin
- * Banebrinken 99, 2, 77
- * DK-2400 Copenhagen NV
- * DENMARK
- *
- * $Id: Usage.c,v 37.5 93/03/01 12:35:20 Torsten Rel $
- * $Log: Usage.c,v $
- * Revision 37.5 93/03/01 12:35:20 Torsten
- * Changed all occurrences of "struct DosBase *" to "struct DosLibrary *"
- *
- * Revision 37.4 93/02/27 14:07:53 Torsten
- * Corrected silly bug: I had "swapped" the values of 'rc' for failed
- * calls to AllocVec() and ParseArgs() in entrypoint(), resulting
- * in an out of memory message being produced by malformed command lines.
- *
- * Revision 37.3 93/02/26 11:49:03 Torsten
- * Replaced the return code check in entrypoint() with
- * a call to printErrorMsg(), unfortunately resulting in a 28 bytes
- * bigger executable ;-(
- * It now prints a reasonable error message if the global structure
- * cannot be allocated.
- *
- * Revision 37.2 93/02/25 18:39:11 Torsten
- * Tightened the code a bit.
- *
- * Revision 37.1 93/02/16 18:17:11 Torsten
- * Initial revision.
- *
- */
-
- #include <exec/types.h>
- #include <exec/memory.h>
- #include <dos/dos.h>
- #include <dos/dosextens.h>
- #include <dos/dostags.h>
- #include <dos/dosasl.h>
- #include <clib/exec_protos.h>
- #include <clib/dos_protos.h>
- #ifdef __SASC
- #include <pragmas/exec_pragmas.h>
- #include <pragmas/dos_pragmas.h>
- #endif
- #include <string.h>
- #include "tastlib.h"
- #include "usage_rev.h"
-
- #define PROGNAME "Usage"
- #define TEMPLATE "DIR/M,BRIEF/S,NOHEAD/S,NOTOTAL/S"
- #define OPT_DIR 0
- #define OPT_BRIEF 1
- #define OPT_NOHEAD 2
- #define OPT_NOTOTAL 3
-
- typedef struct {
- struct DosLibrary *DOSBase;
- ULONG totalblocks;
- ULONG totalbytes;
- BOOL brief;
- } Global;
-
- LONG usage(Global *, UBYTE *);
-
- char const versionID[] = VERSTAG;
- char const copyright[] = "$COPYRIGHT:©1993 Torsten Poulin$";
-
- LONG entrypoint(VOID)
- {
- struct DosLibrary *DOSBase;
- struct RDArgs *args;
- Global *global;
- LONG arg[4];
- LONG rc = RETURN_OK;
- UBYTE **dir;
- ULONG count;
-
- if (!(DOSBase = (struct DosLibrary *) OpenLibrary("dos.library", 37L)))
- return RETURN_FAIL;
-
- if (!(global = AllocVec(sizeof(Global), MEMF_PUBLIC | MEMF_CLEAR)))
- rc = ERROR_NO_FREE_STORE;
- else
- {
- global->DOSBase = DOSBase;
-
- global->totalblocks = global->totalbytes = 0L;
- arg[OPT_DIR] = arg[OPT_BRIEF] = arg[OPT_NOHEAD] = arg[OPT_NOTOTAL] = 0L;
-
- if (!(args = ReadArgs(TEMPLATE, arg, NULL)))
- rc = RETURN_FAIL;
- else
- {
- global->brief = (BOOL) arg[OPT_BRIEF];
- if (!(BOOL) arg[OPT_NOHEAD])
- PutStr(" Blocks Bytes\n");
-
- if (!arg[OPT_DIR])
- rc = usage(global, "");
- else
- {
- dir = (UBYTE **) arg[OPT_DIR];
- for (count = 0; *dir && rc == RETURN_OK; dir++, count++)
- rc = usage(global, *dir);
- if (count > 1 && !(BOOL) arg[OPT_NOTOTAL])
- {
- PutStr(" --------- ----------\n");
- MyPrintf(global, "%10ld %10ld\n",
- global->totalblocks, global->totalbytes);
- }
- }
- FreeArgs(args);
- }
- FreeVec(global);
- }
- rc = printErrorMsg(rc, PROGNAME, DOSBase);
- CloseLibrary((struct Library *) DOSBase);
- return rc;
- }
-
-
- LONG calc_usage(Global *global, UBYTE *dir, UBYTE *path,
- ULONG *blocks, ULONG *bytes)
- {
- struct DosLibrary *DOSBase = global->DOSBase;
-
- struct FileInfoBlock *m;
- BPTR lock, oldlock;
- LONG rc = RETURN_OK;
- LONG type;
- UBYTE *currentpath;
- ULONG fblocks = 0L, fbytes = 0L;
- ULONG dblocks = 0L, dbytes = 0L;
- ULONG fudge;
-
- if (!(m = AllocDosObject(DOS_FIB, NULL)))
- rc = ERROR_NO_FREE_STORE;
- else
- {
- if (!(currentpath = AllocVec(strlen(path)+1, MEMF_PUBLIC)))
- rc = ERROR_NO_FREE_STORE;
- else
- {
- if (!(lock = Lock(dir, SHARED_LOCK)))
- rc = RETURN_ERROR;
- else
- {
- oldlock = CurrentDir(lock);
- if (Examine(lock, m))
- {
- type = m->fib_DirEntryType;
- strcpy(currentpath, path);
- if (type < 0 || type == ST_SOFTLINK)
- {
- PrintFault(ERROR_OBJECT_WRONG_TYPE, dir);
- rc = RETURN_WARN;
- }
- else
- {
- while (ExNext(lock, m))
- {
- if (CheckSignal(SIGBREAKF_CTRL_C))
- {
- rc = ERROR_BREAK;
- break;
- }
-
- type = m->fib_DirEntryType;
-
- /* We don't want to handle soft links ;-) */
- if (type != ST_SOFTLINK)
- {
- fblocks += fudge = m->fib_NumBlocks + 1; /* header (?) */
- if (type < 0)
- fbytes += m->fib_Size; /* it's a file */
- else
- {
- /* it's a directory */
- UBYTE *newpath;
-
- if (!(newpath = AllocVec(strlen(currentpath)+108+2,
- MEMF_PUBLIC)))
- {
- rc = ERROR_NO_FREE_STORE;
- break;
- }
- strcpy(newpath, currentpath);
- AddPart(newpath, m->fib_FileName,
- strlen(currentpath) + 108 + 1);
-
- dblocks = dbytes = 0L;
- rc = calc_usage(global, m->fib_FileName, newpath,
- &dblocks, &dbytes);
-
- if (!global->brief)
- MyPrintf(global, "%10ld %10ld %s\n",
- dblocks ? dblocks : dblocks + fudge,
- dbytes, newpath);
- FreeVec(newpath);
-
- fblocks += dblocks;
- fbytes += dbytes;
-
- if (rc == ERROR_BREAK || rc == ERROR_NO_FREE_STORE)
- break;
- }
- }
- }
- *blocks = fblocks;
- *bytes = fbytes;
- }
- }
- CurrentDir(oldlock);
- UnLock(lock);
- }
- FreeVec(currentpath);
- }
- FreeDosObject(DOS_FIB, m);
- }
- return rc;
- }
-
-
- LONG usage(Global *global, UBYTE *dir)
- {
- ULONG bl = 0L, by = 0L;
- LONG rc;
-
- if ((rc = calc_usage(global, dir, dir, &bl, &by)) == RETURN_OK)
- MyPrintf(global, "%10ld %10ld %s\n", bl, by, dir);
-
- global->totalblocks += bl;
- global->totalbytes += by;
- return rc;
- }
-