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deb-mbse/mbsebbs/mbuser.c

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/*****************************************************************************
*
* $Id$
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* Purpose ...............: User Pack Util
*
*****************************************************************************
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* Copyright (C) 1997-2004
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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
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* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*****************************************************************************/
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#include "../config.h"
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#include "../lib/mbselib.h"
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#include "../lib/users.h"
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#include "../lib/mbsedb.h"
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#include "mbuser.h"
extern int e_pid; /* External pid */
extern int do_quiet; /* Quiet flag */
time_t t_start; /* Start time */
time_t t_end; /* End time */
int Days, Level; /* Kill days and up to level */
struct userhdr usrhdr; /* Database header */
struct userrec usr; /* Database record */
mode_t oldmask; /* Old umask value */
int main(int argc, char **argv)
{
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int i, pack = FALSE;
char *cmd;
struct passwd *pw;
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InitConfig();
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TermInit(1, 80, 24);
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Days = 0;
Level = 0;
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t_start = time(NULL);
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if (argc < 2)
Help();
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cmd = xstrcpy((char *)"Command line:");
for (i = 1; i < argc; i++) {
cmd = xstrcat(cmd, (char *)" ");
cmd = xstrcat(cmd, tl(argv[i]));
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if (strncasecmp(tl(argv[i]), "-q", 2) == 0)
do_quiet = TRUE;
if (strncasecmp(tl(argv[i]), "p", 1) == 0)
pack = TRUE;
if (strncasecmp(tl(argv[i]), "k", 1) == 0) {
if (argc <= (i + 2))
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Help();
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i++;
cmd = xstrcat(cmd, (char *)" ");
cmd = xstrcat(cmd, argv[i]);
Days = atoi(argv[i]);
i++;
cmd = xstrcat(cmd, (char *)" ");
cmd = xstrcat(cmd, argv[i]);
Level = atoi(argv[i]);
if ((Days == 0) || (Level == 0))
Help();
}
}
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if ((Days + Level + pack) == 0)
Help();
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ProgName();
pw = getpwuid(getuid());
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InitClient(pw->pw_name, (char *)"mbuser", CFG.location, CFG.logfile,
CFG.util_loglevel, CFG.error_log, CFG.mgrlog, CFG.debuglog);
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Syslog(' ', " ");
Syslog(' ', "MBUSER v%s", VERSION);
Syslog(' ', cmd);
free(cmd);
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if (!diskfree(CFG.freespace))
ExitClient(MBERR_DISK_FULL);
if (lockprogram((char *)"mbuser")) {
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if (!do_quiet)
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printf("Can't lock mbuser, abort.\n");
ExitClient(MBERR_NO_PROGLOCK);
}
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oldmask = umask(027);
if (!do_quiet)
colour(3, 0);
UserPack(Days, Level, pack);
umask(oldmask);
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ulockprogram((char *)"mbuser");
t_end = time(NULL);
Syslog(' ', "MBUSER finished in %s", t_elapsed(t_start, t_end));
if (!do_quiet)
colour(7, 0);
ExitClient(MBERR_OK);
return 0;
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}
/*
* Program header
*/
void ProgName(void)
{
if (do_quiet)
return;
colour(15, 0);
printf("\nMBUSER: MBSE BBS %s - User maintenance utility\n", VERSION);
colour(14, 0);
printf(" %s\n\n", COPYRIGHT);
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colour(7, 0);
}
void Help(void)
{
do_quiet = FALSE;
ProgName();
colour(11, 0);
printf("\nUsage: mbuser [commands] <options>\n\n");
colour(9, 0);
printf(" Commands are:\n\n");
colour(3, 0);
printf(" kill [n] [l] Kill users not called in \"n\" days below level \"l\"\n");
printf(" pack Pack the userbase\n");
colour(9, 0);
printf("\n Options are:\n\n");
colour(3, 0);
printf(" -quiet Quiet mode, (no screen output)\n\n");
colour(7, 0);
printf("\n");
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ExitClient(MBERR_COMMANDLINE);
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}
/*
* Userpack routine
*/
void UserPack(int days, int level, int pack)
{
FILE *fin, *fout;
char *fnin, *fnout;
long oldsize, curpos;
int updated, delete = 0, rc, highest = 0, record = 0, sysop = FALSE;
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time_t Last;
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#ifdef _VPOPMAIL_PATH
char *cmd;
#endif
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fnin = calloc(PATH_MAX, sizeof(char));
fnout = calloc(PATH_MAX, sizeof(char));
sprintf(fnin, "%s/etc/users.data", getenv("MBSE_ROOT"));
sprintf(fnout, "%s/etc/users.temp", getenv("MBSE_ROOT"));
/*
* First copy the users database, all packing will be done
* on a the copy.
*/
if ((fin = fopen(fnin, "r")) == NULL) {
WriteError("Can't open %s", fnin);
free(fnin);
free(fnout);
return;
}
if ((fout = fopen(fnout, "w+")) == NULL) {
WriteError("Can't create %s", fnout);
fclose(fin);
free(fnin);
free(fnout);
return;
}
fread(&usrhdr, sizeof(usrhdr), 1, fin);
oldsize = usrhdr.recsize;
updated = FALSE;
/*
* First count records and blanks at the end. Check if the sysop name
* in the main configuration exists in the userdatabase.
*/
while (fread(&usr, oldsize, 1,fin) == 1) {
delete++;
if (!usr.Deleted && strlen(usr.sUserName)) {
highest = (ftell(fin) / oldsize);
if (!strcmp(usr.sUserName, CFG.sysop_name) && !strcmp(usr.Name, CFG.sysop))
sysop = TRUE;
}
}
if (highest != delete) {
Syslog('+', "Blank records at the end, truncating userbase");
updated = TRUE;
}
if (!sysop)
WriteError("No valid Sysop Fidoname and/or Unixname found in userbase, check setup!");
fseek(fin, usrhdr.hdrsize, SEEK_SET);
if (oldsize != sizeof(usr)) {
updated = TRUE;
Syslog('+', "Userbase recordsize is changed, making update");
}
usrhdr.hdrsize = sizeof(usrhdr);
usrhdr.recsize = sizeof(usr);
fwrite(&usrhdr, sizeof(usrhdr), 1, fout);
/*
* The datarecord is filled with zero's before each read
* so that if the record format changed, the new fields will
* be empty by default. The blank records at the end of the
* database are dropped.
*/
memset(&usr, 0, sizeof(usr));
while (fread(&usr, oldsize, 1,fin) == 1) {
record++;
fwrite(&usr, sizeof(usr), 1, fout);
memset(&usr, 0, sizeof(usr));
if (CFG.slow_util && do_quiet)
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msleep(1);
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Nopper();
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}
fclose(fin);
delete = 0;
/*
* Handle packing for days below level
*/
if ((days) && (level)) {
fseek(fout, sizeof(usrhdr), SEEK_SET);
curpos = sizeof(usrhdr);
while (fread(&usr, sizeof(usr), 1, fout) == 1) {
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/*
* New users don't have the last login date set yet,
* use the registration date instead.
*/
if (usr.iTotalCalls == 0)
Last = usr.tFirstLoginDate;
else
Last = usr.tLastLoginDate;
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/*
* Wow, killing on the second exact!. Don't kill
* the guest accounts.
*/
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if ((((t_start - Last) / 86400) > days) &&
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(usr.Security.level < level) && (!usr.Guest) &&
(usr.sUserName[0] != '\0') && (!usr.NeverDelete)) {
Syslog('+', "Mark user %s", usr.sUserName);
if (!do_quiet) {
printf("Mark user %s\n", usr.sUserName);
fflush(stdout);
}
delete++;
updated = TRUE;
fseek(fout, - sizeof(usr), SEEK_CUR);
/*
* Just mark for deletion
*/
usr.Deleted = TRUE;
fwrite(&usr, sizeof(usr), 1, fout);
}
if (CFG.slow_util && do_quiet)
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msleep(1);
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}
Syslog('+', "Marked %d users to delete", delete);
}
/*
* Pack the userbase if told so
*/
if (pack) {
Syslog('+', "Packing userbase");
delete = 0;
fseek(fout, sizeof(usrhdr), SEEK_SET);
while (fread(&usr, sizeof(usr), 1, fout) == 1) {
if (CFG.slow_util && do_quiet)
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msleep(1);
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Nopper();
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if (usr.Deleted) {
if (!do_quiet) {
printf("Delete user %s\n", usr.Name);
fflush(stdout);
}
if (usr.Name[0] != '\0') {
if ((setuid(0) == -1) || (setgid(0) == -1)) {
WriteError("Cannot setuid(root) or setgid(root)");
WriteError("Cannot delete unix account %s", usr.Name);
} else {
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#ifndef __FreeBSD__
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rc = execute((char *)"/usr/sbin/userdel ", usr.Name, NULL,
(char *)"/dev/null",(char *)"/dev/null",(char *)"/dev/null");
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#else
rc = execute((char *)"/usr/sbin/pw userdel ", usr.Name, NULL,
(char *)"/dev/null",(char *)"/dev/null",(char *)"/dev/null");
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#endif
#ifdef _VPOPMAIL_PATH
cmd = xstrcpy((char *)_VPOPMAIL_PATH);
cmd = xstrcat(cmd, (char *)"/vdeluser ");
rc = execute(cmd, usr.Name, NULL,
(char *)"/dev/null",(char *)"/dev/null",(char *)"/dev/null");
free(cmd);
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#endif
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if (chdir(CFG.bbs_usersdir) == 0)
rc = execute((char *)"/bin/rm -Rf ", usr.Name, NULL,
(char *)"/dev/null",(char *)"/dev/null",(char *)"/dev/null");
}
}
fseek(fout, - sizeof(usr), SEEK_CUR);
/*
* Blank the deleted records for reuse.
*/
memset(&usr, 0, sizeof(usr));
fwrite(&usr, sizeof(usr), 1, fout);
delete++;
updated = TRUE;
}
}
Syslog('+', "Deleted %d records", delete);
}
if (updated) {
/*
* Copy file back to the original file, truncate any
* deleted records at the end.
*/
fseek(fout, 0, SEEK_SET);
if ((fin = fopen(fnin, "w")) == NULL) {
WriteError("Can't open %s", fnin);
free(fnin);
free(fnout);
return;
}
fread(&usrhdr, sizeof(usrhdr), 1, fout);
fwrite(&usrhdr, sizeof(usrhdr), 1, fin);
record = 0;
while (fread(&usr, sizeof(usr), 1,fout) == 1) {
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Nopper();
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record++;
fwrite(&usr, sizeof(usr), 1, fin);
if (record >= highest)
break;
}
fclose(fin);
fclose(fout);
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chmod(fnin, 0660);
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Syslog('+', "Userbase is updated, written %d records", record);
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} else {
fclose(fout);
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}
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unlink(fnout);
free(fnin);
free(fnout);
}