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deb-mbse/mbcico/filelist.c

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/*****************************************************************************
*
* $Id$
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* Purpose ...............: fidonet mailer
*
*****************************************************************************
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* Copyright (C) 1997-2001
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*
* 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, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
#include "../lib/libs.h"
#include "../lib/structs.h"
#include "../lib/records.h"
#include "../lib/clcomm.h"
#include "../lib/common.h"
#include "config.h"
#include "session.h"
#include "filelist.h"
#ifndef PATH_MAX
#define PATH_MAX 512
#endif
extern int master;
int made_request;
static char *tmpkname(void);
static char *tmpkname(void)
{
static char buf[16];
sprintf(buf,"%08lx.pkt", sequencer());
return buf;
}
char *xtodos(char *orig)
{
char buf[13], *copy, *p;
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if (orig == NULL)
return NULL;
if ((remote_flags & SESSION_FNC) == 0) {
Syslog('o', "No filename conversion for \"%s\"", MBSE_SS(orig));
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return xstrcpy(orig);
}
copy = xstrcpy(orig);
if ((p = strrchr(copy,'/')))
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p++;
else
p = copy;
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name_mangle(p);
memset(&buf, 0, sizeof(buf));
strncpy(buf, p, 12);
Syslog('o', "name \"%s\" converted to \"%s\"", MBSE_SS(orig), MBSE_SS(buf));
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free(copy);
return xstrcpy(buf);
}
/*
* Add the specified entry to the list of files which should be sent
* to the remote system.
* 1. lst file list to add entry to
* 2. local local filename
* 3. remote remote filename
* 4. disposition disposition
* 5. floff offset of entry in flo-file (-1 if this is a flo file)
* 6. flofp FILE * of flo file
* 7. toend append to end of list
*/
void add_list(file_list **lst, char *local, char *Remote, int disposition, off_t floff, FILE *flofp, int toend)
{
file_list **tmpl;
file_list *tmp;
Syslog('o', "add_list(\"%s\",\"%s\",%d,%s)", MBSE_SS(local),MBSE_SS(Remote),disposition,toend?"to end":"to beg");
if (toend)
for (tmpl = lst; *tmpl; tmpl =&((*tmpl)->next));
else
tmpl = &tmp;
*tmpl = (file_list*)malloc(sizeof(file_list));
if (toend) {
(*tmpl)->next = NULL;
} else {
(*tmpl)->next = *lst;
*lst = *tmpl;
}
(*tmpl)->remote = xtodos(Remote);
(*tmpl)->local = xstrcpy(local);
(*tmpl)->disposition = disposition;
(*tmpl)->floff = floff;
(*tmpl)->flofp = flofp;
return;
}
static void check_flo(file_list **, char *);
static void check_flo(file_list **lst, char *nm)
{
FILE *fp;
off_t off;
struct flock fl;
char buf[PATH_MAX],buf2[PATH_MAX],*p,*q;
int disposition;
struct stat stbuf;
Syslog('O', "check_flo(\"%s\")",MBSE_SS(nm));
if ((fp = fopen(nm,"r+")) == NULL) {
Syslog('O',"no flo file");
return;
}
fl.l_type = F_RDLCK;
fl.l_whence = 0;
fl.l_start = 0L;
fl.l_len = 0L;
if (fcntl(fileno(fp), F_SETLK, &fl) != 0) {
if (errno != EAGAIN)
WriteError("$cannot read-lock \"%s\"",MBSE_SS(nm));
else
Syslog('O',"flo file busy");
fclose(fp);
return;
}
if (stat(nm, &stbuf) != 0) {
WriteError("$cannot access \"%s\"",MBSE_SS(nm));
fclose(fp);
return;
}
while (!feof(fp) && !ferror(fp)) {
off = ftell(fp);
if (fgets(buf, sizeof(buf)-1, fp) == NULL)
continue;
if (buf[0] == '~')
continue; /* skip sent files */
if (*(p=buf + strlen(buf) -1) == '\n')
*p-- = '\0';
if (*p == '\r')
*p = '\0';
switch (buf[0]) {
case '#': p=buf+1; disposition=TFS; break;
case '-':
case '^': p=buf+1; disposition=KFS; break;
case '@': p=buf+1; disposition=LEAVE; break;
case 0: continue;
default: p=buf; disposition=LEAVE; break;
}
memset(&buf2, 0, sizeof(buf2));
if (strlen(CFG.dospath)) {
if (strncasecmp(p, CFG.dospath, strlen(CFG.dospath)) == 0) {
strcpy(buf2,uxoutbound);
for (p+=strlen(CFG.dospath), q=buf2+strlen(buf2); *p; p++, q++)
*q = ((*p) == '\\')?'/':tolower(*p);
*q = '\0';
p = buf2;
}
} else {
if (strncasecmp(p, CFG.uxpath, strlen(CFG.uxpath)) == 0) {
for (p=p, q=buf2+strlen(buf2); *p; p++, q++)
*q = ((*p) == '\\')?'/':tolower(*p);
*q = '\0';
p = buf2;
}
}
if ((q=strrchr(p,'/')))
q++;
else
q = p;
add_list(lst, p, q, disposition, off, fp, 1);
}
/*
* Add flo file to file list
*/
add_list(lst, nm, NULL, KFS, -1L, fp, 1);
/* here, we leave .flo file open, it will be closed by */
/* execute_disposition */
return;
}
file_list *create_filelist(fa_list *al, char *fl, int create)
{
file_list *st=NULL;
file_list *tmpf;
fa_list *tmpa;
char flavor, *tmpfl;
char *nm;
char tmpreq[13];
struct stat stbuf;
int packets = 0;
FILE *fp;
unsigned char buffer[2];
Syslog('o', "Create_filelist(%s,\"%s\",%d)", al?ascfnode(al->addr,0x1f):"<none>", MBSE_SS(fl), create);
made_request = 0;
for (tmpa = al; tmpa; tmpa = tmpa->next) {
Syslog('o', "Check address %s", ascfnode(tmpa->addr, 0x1f));
/*
* Check spool files.
*/
if (strchr(fl, 'o')) {
nm=splname(tmpa->addr);
if ((fp=fopen(nm,"w")))
fclose(fp);
if ((nm != NULL) && (stat(nm,&stbuf) == 0))
add_list(&st,nm,NULL,DSF,0L,NULL,1);
}
/*
* Check .pol files
*/
nm = polname(tmpa->addr);
if ((nm != NULL) && (stat(nm,&stbuf) == 0))
add_list(&st,nm,NULL,DSF,0L,NULL,1);
/*
* Check other files, all flavors
*/
tmpfl = fl;
while ((flavor = *tmpfl++)) {
/*
* Check normal mail packets
*/
nm=pktname(tmpa->addr,flavor);
if ((nm != NULL) && (stat(nm,&stbuf) == 0)) {
packets++;
add_list(&st,nm,tmpkname(),KFS,0L,NULL,1);
}
/*
* Check .flo files for file attaches
*/
nm=floname(tmpa->addr,flavor);
check_flo(&st,nm);
}
if ((session_flags & SESSION_WAZOO) &&
((session_flags & SESSION_HYDRA) == 0) &&
(master || ((session_flags & SESSION_IFNA) == 0))) {
/*
* we don't distinguish flavoured reqs
*/
nm=reqname(tmpa->addr);
if ((nm != NULL) && (stat(nm,&stbuf) == 0)) {
sprintf(tmpreq,"%04X%04X.REQ", tmpa->addr->net,tmpa->addr->node);
add_list(&st,nm,tmpreq,DSF,0L,NULL,1);
made_request = 1;
}
}
}
if (((st == NULL) && (create > 1)) || ((st != NULL) && (packets == 0) && (create > 0))) {
Syslog('o',"Create packet for %s",ascfnode(al->addr,0x1f));
if ((fp = openpkt(NULL, al->addr, 'o'))) {
memset(&buffer, 0, sizeof(buffer));
fwrite(buffer, 1, 2, fp);
fclose(fp);
}
add_list(&st,pktname(al->addr,'o'),tmpkname(),KFS,0L,NULL,0);
}
for (tmpf = st; tmpf; tmpf = tmpf->next)
Syslog('O',"flist: \"%s\" -> \"%s\" dsp:%d flofp:%lu floff:%lu",
MBSE_SS(tmpf->local), MBSE_SS(tmpf->remote), tmpf->disposition,
(unsigned long)tmpf->flofp, (unsigned long)tmpf->floff);
return st;
}
/*
* Create file request list for the Hydra or Binkp protocol.
*/
file_list *create_freqlist(fa_list *al)
{
file_list *st = NULL, *tmpf;
fa_list *tmpa;
char *nm;
char tmpreq[13];
struct stat stbuf;
Syslog('o', "create_freqlist(%s)", al?ascfnode(al->addr, 0x1f):"<none>");
made_request = 0;
for (tmpa = al; tmpa; tmpa = tmpa->next) {
nm = reqname(tmpa->addr);
if ((nm != NULL) && (stat(nm, &stbuf) == 0)) {
sprintf(tmpreq, "%04X%04X.REQ", tmpa->addr->net, tmpa->addr->node);
add_list(&st, nm, tmpreq, DSF, 0L, NULL, 1);
made_request = 1;
}
}
for (tmpf = st; tmpf; tmpf = tmpf->next)
Syslog('O', "flist: \"%s\" -> \"%s\" dsp:%d flofp:%lu floff:%lu",
MBSE_SS(tmpf->local), MBSE_SS(tmpf->remote), tmpf->disposition,
tmpf->flofp, tmpf->floff);
return st;
}
void tidy_filelist(file_list *fl, int dsf)
{
file_list *tmp;
if (fl == NULL)
return;
for (tmp=fl;fl;fl=tmp) {
tmp=fl->next;
if (dsf && (fl->disposition == DSF)) {
Syslog('o',"Removing sent file \"%s\"",MBSE_SS(fl->local));
if (unlink(fl->local) != 0) {
if (errno == ENOENT)
Syslog('o',"Cannot unlink nonexistent file \"%s\"", MBSE_SS(fl->local));
else
WriteError("$Cannot unlink file \"%s\"", MBSE_SS(fl->local));
}
}
if (fl->local)
free(fl->local);
if (fl->remote)
free(fl->remote);
else if (fl->flofp)
fclose(fl->flofp);
free(fl);
}
return;
}
void execute_disposition(file_list *fl)
{
FILE *fp=NULL;
char *nm;
char tpl='~';
Syslog('o', "execute_disposition(%s)", fl->local);
nm = fl->local;
if (fl->flofp) {
/*
* Check for special case: flo-file
*/
if (fl->floff == -1) {
/*
* We check if there are any files left for transmission
* in the flo-file to decide whether to remove or leave
* it on disk.
*/
char buf[PATH_MAX];
int files_remain = 0;
if (fseek(fl->flofp, 0L, 0) == 0) {
while (!feof(fl->flofp) && !ferror(fl->flofp)) {
if (fgets(buf, sizeof(buf)-1, fl->flofp) == NULL)
continue;
/*
* Count nr of files which haven't been
* sent yet
*/
if (buf[0] != '~')
files_remain++;
}
} else {
WriteError("$Error seeking in .flo to 0");
files_remain = -1; /* Keep flo-file */
}
if (files_remain) {
Syslog('o', "Leaving flo-file \"%s\", %d files remaining", MBSE_SS(nm), files_remain);
fl->disposition = LEAVE;
} else {
fl->disposition = KFS;
}
} else {
/*
* Mark files as sent in flo-file
*/
if (fseek(fl->flofp, fl->floff, 0) == 0) {
if (fwrite(&tpl,1,1,fl->flofp) != 1) {
WriteError("$Error writing '~' to .flo at %lu", (unsigned long)fl->floff);
}
fflush(fl->flofp);
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#ifdef HAVE_FDATASYNC
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fdatasync(fileno(fl->flofp));
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#else
#ifdef HAVE_FSYNC
fsync(fileno(fl->flofp));
#endif
#endif
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} else
WriteError("$error seeking in .flo to %lu", (unsigned long)fl->floff);
}
}
switch (fl->disposition) {
case DSF:
case LEAVE:
break;
case TFS:
Syslog('o', "Truncating sent file \"%s\"",MBSE_SS(nm));
if ((fp=fopen(nm,"w")))
fclose(fp);
else
WriteError("$Cannot truncate file \"%s\"",MBSE_SS(nm));
break;
case KFS:
Syslog('o', "Removing sent file \"%s\"",MBSE_SS(nm));
if (unlink(nm) != 0) {
if (errno == ENOENT)
Syslog('o', "Cannot unlink nonexistent file \"%s\"", MBSE_SS(nm));
else
WriteError("$Cannot unlink file \"%s\"", MBSE_SS(nm));
}
break;
default: WriteError("execute_disposition: unknown disp %d for \"%s\"",
fl->disposition,MBSE_SS(nm));
break;
}
return;
}