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deb-mbse/lib/attach.c
2004-07-25 14:59:19 +00:00

251 lines
6.5 KiB
C

/*****************************************************************************
*
* $Id$
* Purpose ...............: Attach files to outbound
*
*****************************************************************************
* Copyright (C) 1997-2004
*
* 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 "mbselib.h"
/*
* Attach a file to the real outbound fo a given node.
* If fdn == TRUE, the the file is a forwarded tic file, then
* make sure to see if there was an old file with the same name
* that the old attach is removed including the .tic file so
* that we will send the new file with the right .tic file.
*/
int attach(faddr noden, char *ofile, int mode, char flavor, int fdn)
{
FILE *fp;
char *flofile, *thefile;
int rc;
if (ofile == NULL)
return FALSE;
if ((rc = file_exist(ofile, R_OK))) {
WriteError("attach: file %s failed, %s", ofile, strerror(rc));
return FALSE;
}
/*
* Check if we attach a file with the same name
*/
un_attach(&noden, ofile, fdn);
flofile = calloc(PATH_MAX, sizeof(char));
thefile = calloc(PATH_MAX, sizeof(char));
sprintf(flofile, "%s", floname(&noden, flavor));
/*
* Check if outbound directory exists and
* create if it doesn't exist.
*/
mkdirs(ofile, 0770);
/*
* Attach file to .flo
*
* Note that mbcico when connected to a node opens the file "r+",
* locks it with fcntl(F_SETLK), F_RDLCK, whence=0, start=0L, len=0L.
* It seems that this lock is released after the files in the .flo
* files are send. I don't know what will happen if we add entries
* to the .flo files, this must be tested!
*/
if ((fp = fopen(flofile, "a+")) == NULL) {
WriteError("$Can't open %s", flofile);
WriteError("May be locked by mbcico");
free(flofile);
free(thefile);
return FALSE;
}
switch (mode) {
case LEAVE:
if (strlen(CFG.dospath)) {
if (CFG.leavecase)
sprintf(thefile, "@%s", Unix2Dos(ofile));
else
sprintf(thefile, "@%s", tu(Unix2Dos(ofile)));
} else {
sprintf(thefile, "@%s", ofile);
}
break;
case KFS:
if (strlen(CFG.dospath)) {
if (CFG.leavecase)
sprintf(thefile, "^%s", Unix2Dos(ofile));
else
sprintf(thefile, "^%s", tu(Unix2Dos(ofile)));
} else {
sprintf(thefile, "^%s", ofile);
}
break;
case TFS:
if (strlen(CFG.dospath)) {
if (CFG.leavecase)
sprintf(thefile, "#%s", Unix2Dos(ofile));
else
sprintf(thefile, "#%s", tu(Unix2Dos(ofile)));
} else {
sprintf(thefile, "#%s", ofile);
}
break;
}
fseek(fp, 0, SEEK_END);
fprintf(fp, "%s\r\n", thefile);
fclose(fp);
free(flofile);
free(thefile);
return TRUE;
}
int is_my_tic(char *, char *);
int is_my_tic(char *filename, char *ticfile)
{
FILE *fp;
char *buf;
int Found = FALSE;
buf = calloc(81, sizeof(char));
if ((fp = fopen(ticfile, "r"))) {
while (fgets(buf, 80, fp)) {
if (strstr(buf, filename)) {
Found = TRUE;
break;
}
}
fclose(fp);
}
free(buf);
return Found;
}
/*
* The real unatach function, return 1 if a file is removed.
*/
int check_flo(faddr *, char *, char, int);
int check_flo(faddr *node, char *filename, char flavor, int fdn)
{
char *flofile, *ticfile, *buf;
FILE *fp;
long filepos, newpos;
char tpl = '~';
int rc = 0;
buf = calloc(PATH_MAX+3, sizeof(char));
flofile = calloc(PATH_MAX, sizeof(char));
ticfile = calloc(PATH_MAX, sizeof(char));
sprintf(flofile, "%s", floname(node, flavor));
Syslog('p', "%s", flofile);
if ((fp = fopen(flofile, "r+"))) {
filepos = 0;
while (fgets(buf, PATH_MAX +2, fp)) {
newpos = ftell(fp);
Striplf(buf);
if (buf[strlen(buf)-1] == '\r')
buf[strlen(buf)-1] = '\0';
Syslog('p', "hlo: \"%s\"", printable(buf, 0));
if (((strcmp(buf, filename) == 0) || (strcmp(buf+1, filename) == 0)) && (buf[0] != '~')) {
Syslog('p', "Found");
fseek(fp, filepos, SEEK_SET);
fwrite(&tpl, 1, 1, fp);
fflush(fp);
fseek(fp, newpos, SEEK_SET);
filepos = newpos;
if (fdn && fgets(buf, PATH_MAX +2, fp)) {
Striplf(buf);
if (buf[strlen(buf)-1] == '\r')
buf[strlen(buf)-1] = '\0';
if (strstr(buf, ".tic") && is_my_tic(basename(filename), buf+1)) {
unlink(buf+1);
fseek(fp, filepos, SEEK_SET);
fwrite(&tpl, 1, 1, fp);
fflush(fp);
Syslog('p', "Removed old %s and %s for %s", basename(filename), basename(buf+1), ascfnode(node, 0x1f));
} else {
Syslog('p', "Removed old %s for %s", basename(filename), ascfnode(node, 0x1f));
}
} else {
Syslog('p', "Removed old %s for %s", basename(filename), ascfnode(node, 0x1f));
}
rc = 1;
break;
}
filepos = ftell(fp);
}
fclose(fp);
}
free(ticfile);
free(flofile);
free(buf);
return rc;
}
/*
* Remove a file from the flofile, also search for a .tic file.
*/
void un_attach(faddr *node, char *filename, int fdn)
{
char *base, *allname;
Syslog('p', "un_attach: %s %s %s", ascfnode(node, 0x1f), filename, fdn ?"FDN":"NOR");
allname = xstrcpy(filename);
base = basename(allname);
if ((strlen(base) == 12) && ((strncasecmp(base+8,".su",3) == 0) ||
(strncasecmp(base+8,".mo",3) == 0) || (strncasecmp(base+8,".tu",3) == 0) ||
(strncasecmp(base+8,".we",3) == 0) || (strncasecmp(base+8,".th",3) == 0) ||
(strncasecmp(base+8,".fr",3) == 0) || (strncasecmp(base+8,".sa",3) == 0))) {
Syslog('p', "this is arcmail, no un_attach");
free(allname);
return;
}
free(allname);
if (check_flo(node, filename, 'h', fdn) == 0)
if (check_flo(node, filename, 'f', fdn) == 0)
check_flo(node, filename, 'c', fdn);
}