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deb-mbse/mbfido/unpack.c
2003-08-16 20:45:01 +00:00

123 lines
2.9 KiB
C

/*****************************************************************************
*
* $Id$
* Purpose ...............: Unpacker
*
*****************************************************************************
* Copyright (C) 1997-2002
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS 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, or (at your option) any
* later version.
*
* MBSE BBS 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 MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*****************************************************************************/
#include "../config.h"
#include "../lib/libs.h"
#include "../lib/structs.h"
#include "../lib/users.h"
#include "../lib/records.h"
#include "../lib/common.h"
#include "../lib/clcomm.h"
#include "flock.h"
#include "unpack.h"
#define UNPACK_FACTOR 300
#define TOSS_FACTOR 120
extern int do_quiet;
int checkspace(char *dir, char *fn, int factor)
{
struct stat st;
struct statfs sfs;
if ((stat(fn,&st) != 0) || (statfs(dir,&sfs) != 0)) {
WriteError("Cannot stat \"%s\" or statfs \"%s\", assume enough space", fn, dir);
return 1;
}
if ((((st.st_size / sfs.f_bsize +1) * factor) / 100L) > sfs.f_bfree) {
Syslog('!', "Only %lu %lu-byte blocks left on device where %s is located",
sfs.f_bfree,sfs.f_bsize,dir);
return 0;
}
return 1;
}
/*
* Unpack archive
*/
int unpack(char *fn)
{
char newname[16];
char *cmd = NULL, *unarc;
int rc = 0, ld;
if (!do_quiet) {
colour(11, 0);
printf("Unpacking file %s\n", fn);
}
if ((unarc = unpacker(fn)) == NULL)
return 1;
if (!getarchiver(unarc))
return 1;
cmd = xstrcpy(archiver.munarc);
if ((cmd == NULL) || (cmd == ""))
return -1;
if ((ld = f_lock(fn)) == -1) {
free(cmd);
return 1;
}
if ((rc = execute(cmd,fn,(char *)NULL,(char*)"/dev/null",(char*)"/dev/null",(char*)"/dev/null")) == 0) {
sync();
unlink(fn);
} else {
sync();
sleep(1);
Syslog('!', "Warning: unpack %s failed, trying again after sync()", fn);
if ((rc = execute(cmd,fn,(char *)NULL,(char*)"/dev/null",(char*)"/dev/null",(char*)"/dev/null")) == 0) {
sync();
unlink(fn);
} else {
sync();
strncpy(newname,fn,sizeof(newname)-1);
strcpy(newname+8,".bad");
rename(fn,newname);
}
}
free(cmd);
funlock(ld);
return rc;
}