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LIGHT-ROM 1 (Amiga Library Services)(1994).iso
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d939.lha
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Tee.c
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C/C++ Source or Header
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1993-10-22
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4KB
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146 lines
/*
* Tee - Join pipes and make copies of input.
* Copyright (C) 1989, 1992, 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: Tee.c,v 37.5 93/06/21 18:13:15 Torsten Rel $
* $Log: Tee.c,v $
* Revision 37.5 93/06/21 18:13:15 Torsten
* Throughput increased by the addition of a 16k buffer.
* Tee no longer complains when it cannot open a specified
* output file (the message was swallowed by the pipe under
* WShell).
*
* Revision 37.4 93/02/13 16:44:20 Torsten
* Forgot the initial '$' in the copyright tag.
*
* Revision 37.3 93/02/13 16:36:57 Torsten
* Replaced exec.library/SetSignal() with dos.library/CheckSignal().
* Removed IGNORE switch because it seemed pretty silly.
*
*/
#include <exec/types.h>
#include <exec/memory.h>
#include <dos/dos.h>
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/intuition.h>
#include "tee_rev.h"
#define OPT_TO 0
#define OPT_APPEND 1
#define BUFLEN 16384L
char const versionID[] = VERSTAG;
char const copyright[] = "$COPYRIGHT:© 1989,1992,1993 Torsten Poulin$";
struct fileList {
struct fileList *next;
BPTR file;
};
LONG entrypoint(VOID)
{
struct RDArgs *args;
struct DosLibrary *DOSBase;
struct fileList *list, *p;
BPTR *buffer;
BPTR in, out;
LONG rlen;
LONG arg[2];
LONG rc = RETURN_OK;
if (!(DOSBase = (struct DosLibrary *) OpenLibrary("dos.library", 37L)))
return RETURN_FAIL;
arg[OPT_TO] = arg[OPT_APPEND] = 0L;
in = Input();
out = Output();
if (!(buffer = AllocVec(BUFLEN, MEMF_ANY))) {
PrintFault(ERROR_NO_FREE_STORE, "Tee");
rc = RETURN_FAIL;
}
else {
if (args = ReadArgs("TO/M,APPEND/S", arg, NULL)) {
if (arg[OPT_TO]) {
UBYTE **name;
struct fileList *newnode;
LONG mode;
BPTR file;
mode = arg[OPT_APPEND] ? MODE_READWRITE : MODE_NEWFILE;
list = NULL;
/* Open the files */
for (name = (UBYTE **) arg[OPT_TO]; *name; name++) {
if (!(file = Open(*name, mode)))
continue;
if (arg[OPT_APPEND])
Seek(file, 0L, OFFSET_END);
/* Store the filehandle */
if (!(newnode = AllocVec(sizeof(struct fileList), MEMF_ANY))) {
PrintFault(ERROR_NO_FREE_STORE, "Tee");
rc = RETURN_FAIL;
goto bail_out;
}
newnode->file = file;
newnode->next = list;
list = newnode;
}
}
/* Do the copying ... */
while ((rlen = Read(in, buffer, BUFLEN)) > 0) {
if (CheckSignal(SIGBREAKF_CTRL_C)) {
rc = RETURN_WARN;
break;
}
Write(out, buffer, rlen);
for (p = list; p; p = p->next)
Write(p->file, buffer, rlen);
}
bail_out:
/* Close the files and free up memory*/
for (p = list; p; ) {
struct fileList *remember;
remember = p;
Close(p->file);
p = p->next;
FreeVec(remember);
}
FreeArgs(args);
}
else {
LONG err = IoErr();
PrintFault(err, "Tee");
rc = RETURN_ERROR;
}
FreeVec(buffer);
}
CloseLibrary((struct Library *) DOSBase);
return rc;
}