ircd-hybrid-8/src/csvlib.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  csvlib.c - set of functions to deal with csv type of conf files
 *
 *  Copyright (C) 2003 by Diane Bruce, Stuart Walsh
 *  Use it anywhere you like, if you like it buy us a beer.
 *  If it's broken, don't bother us with the lawyers.
 *
 *  $Id$
 */

#include "config.h"
#ifdef HAVE_LIBPCRE
#include <pcre.h>
#endif
#include "stdinc.h"
#include "list.h"
#include "s_log.h"
#include "s_conf.h"
#include "hostmask.h"
#include "client.h"
#include "irc_string.h"
#include "sprintf_irc.h"
#include "memory.h"
#include "send.h"
#include "resv.h"
#include "s_serv.h"

/* Fix "statement not reached" warnings on Sun WorkShop C */
#ifdef __SUNPRO_C
#   pragma error_messages(off, E_STATEMENT_NOT_REACHED)
#endif


static void parse_csv_line(char *, ...);
static int write_csv_line(FBFILE *, const char *, ...);
static int flush_write(struct Client *, FBFILE *, FBFILE *, 
                       const char *, const char *);
static char *getfield(char *);

/* parse_csv_file()
 *
 * inputs       - FILE pointer
 *              - type of conf to parse
 * output       - none
 * side effects -
 */
void
parse_csv_file(FBFILE *file, ConfType conf_type)
{
  struct ConfItem *conf;
  struct AccessItem *aconf;
  struct MatchItem *match_item;
  char  *name_field=NULL;
  char  *user_field=NULL;
  char  *reason_field=NULL;
  char  *oper_reason=NULL;
  char  *host_field=NULL;
  char  line[IRCD_BUFSIZE];
  char  *p;

  while (fbgets(line, sizeof(line), file) != NULL)
  {
    if ((p = strchr(line, '\n')) != NULL)
      *p = '\0';

    if ((line[0] == '\0') || (line[0] == '#'))
      continue;

    switch(conf_type)
    {
    case KLINE_TYPE:
      parse_csv_line(line, &user_field, &host_field, &reason_field, NULL);
      conf = make_conf_item(KLINE_TYPE);
      aconf = map_to_conf(conf);

      if (host_field != NULL)
        DupString(aconf->host, host_field);
      if (reason_field != NULL)
        DupString(aconf->reason, reason_field);
      if (user_field != NULL)
        DupString(aconf->user, user_field);
      if (aconf->host != NULL)
        add_conf_by_address(CONF_KILL, aconf);
      break;
#ifdef HAVE_LIBPCRE
    case RKLINE_TYPE:
    {
      const char *errptr = NULL;
      pcre *exp_user = NULL, *exp_host = NULL;

      parse_csv_line(line, &user_field, &host_field, &reason_field, NULL);

      if (host_field == NULL || user_field == NULL)
        break;

      if (!(exp_user = ircd_pcre_compile(user_field, &errptr)) ||
          !(exp_host = ircd_pcre_compile(host_field, &errptr)))
      {
        sendto_realops_flags(UMODE_ALL, L_ALL,
                  "Failed to add regular expression based K-Line: %s", errptr);
        break;
      }

      aconf = map_to_conf(make_conf_item(RKLINE_TYPE));

      aconf->regexuser = exp_user;
      aconf->regexhost = exp_host;

      DupString(aconf->user, user_field);
      DupString(aconf->host, host_field);

      if (reason_field != NULL)
        DupString(aconf->reason, reason_field);
      else
        DupString(aconf->reason, "No reason");

    }
      break;
#endif
    case DLINE_TYPE:
      parse_csv_line(line, &host_field, &reason_field, NULL);

      if (host_field && parse_netmask(host_field, NULL, NULL) != HM_HOST)
      {
        aconf = map_to_conf(make_conf_item(DLINE_TYPE));
        DupString(aconf->host, host_field);

        if (reason_field != NULL)
          DupString(aconf->reason, reason_field);
        else
          DupString(aconf->reason, "No reason");
        add_conf_by_address(CONF_DLINE, aconf);
      }

      break;

    case XLINE_TYPE:
      parse_csv_line(line, &name_field, &reason_field, &oper_reason, NULL);
      conf = make_conf_item(XLINE_TYPE);
      match_item = (struct MatchItem *)map_to_conf(conf);
      if (name_field != NULL)
        DupString(conf->name, name_field);
      if (reason_field != NULL)
        DupString(match_item->reason, reason_field);
      break;
#ifdef HAVE_LIBPCRE
    case RXLINE_TYPE:
    {
      const char *errptr = NULL;
      pcre *exp_p = NULL;

      parse_csv_line(line, &name_field, &reason_field, &oper_reason, NULL);

      if (name_field == NULL)
        break;

      if (!(exp_p = ircd_pcre_compile(name_field, &errptr)))
      {
        sendto_realops_flags(UMODE_ALL, L_ALL,
                             "Failed to add regular expression based X-Line: %s", errptr);
        break;
      }

      conf = make_conf_item(RXLINE_TYPE);
      conf->regexpname = exp_p;
      match_item = map_to_conf(conf);
      DupString(conf->name, name_field);

      if (reason_field != NULL)
        DupString(match_item->reason, reason_field);
      else
        DupString(match_item->reason, "No reason");
    }
      break;
#endif
    case CRESV_TYPE:
      parse_csv_line(line, &name_field, &reason_field, NULL);
      (void)create_channel_resv(name_field, reason_field, 0);
      break;

    case NRESV_TYPE:
      parse_csv_line(line, &name_field, &reason_field, NULL);
      (void)create_nick_resv(name_field, reason_field, 0);
      break;

    case GLINE_TYPE:
    case GDENY_TYPE:
    case CONF_TYPE:
    case OPER_TYPE:
    case CLIENT_TYPE:
    case SERVER_TYPE:
    case CLUSTER_TYPE:
    case HUB_TYPE:
    case LEAF_TYPE:
    case ULINE_TYPE:
    case EXEMPTDLINE_TYPE:
    case CLASS_TYPE:
    default:
      break;
    }
  }
}

/*
 * parse_csv_line()
 *
 * inputs       - pointer to line to parse
 * output       -
 * side effects -
 */

static void
parse_csv_line(char *line, ...)
{
  va_list args;
  char **dest;
  char *field = NULL;

  va_start(args, line);

  for (; ;)
  {
    dest = va_arg(args, char **);
    if ((dest == NULL) || ((field = getfield(field ? NULL : line)) == NULL))
    {
      va_end(args);
      return;
    }
    *dest = field;
  }
}

/* write_conf_line()
 *
 * inputs       - pointer to struct AccessItem
 *              - string current_date (small date)
 *              - time_t cur_time
 * output       - NONE
 * side effects - This function takes care of
 *                finding right conf file, writing
 *                the right lines to this file, 
 *                notifying the oper that their kline/dline etc. is in place
 *                notifying the opers on the server about the k/d etc. line
 *                
 * - Dianora
 */
void 
write_conf_line(struct Client *source_p, struct ConfItem *conf,
                const char *current_date, time_t cur_time)
{
  FBFILE *out;
  const char *filename, *from, *to;
  struct AccessItem *aconf;
  struct MatchItem *xconf;
  struct ResvChannel *cresv_p=NULL;
  struct MatchItem *nresv_p=NULL;
  ConfType type;

  type = conf->type;
  filename = get_conf_name(type);

  if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
  {
    from = me.id;
    to = source_p->id;
  }
  else
  {
    from = me.name;
    to = source_p->name;
  }

  if ((out = fbopen(filename, "a")) == NULL)
  {
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "*** Problem opening %s ", filename);
    return;
  }

  switch(type)
  {
  case KLINE_TYPE:
    aconf = (struct AccessItem *)map_to_conf(conf);
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "%s added K-Line for [%s@%s] [%s]",
                         get_oper_name(source_p),
                         aconf->user, aconf->host, aconf->reason);
    sendto_one(source_p, ":%s NOTICE %s :Added K-Line [%s@%s]",
               from, to, aconf->user, aconf->host);
    ilog(L_TRACE, "%s added K-Line for [%s@%s] [%s]",
         source_p->name, aconf->user, aconf->host, aconf->reason);
    log_oper_action(LOG_KLINE_TYPE, source_p, "[%s@%s] [%s]\n",
                    aconf->user, aconf->host, aconf->reason);
    write_csv_line(out, "%s%s%s%s%s%s%d",
                   aconf->user, aconf->host,
                   aconf->reason, aconf->oper_reason, current_date,
                   get_oper_name(source_p), cur_time);
    break;
#ifdef HAVE_LIBPCRE
  case RKLINE_TYPE:
    aconf = map_to_conf(conf);
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "%s added RK-Line for [%s@%s] [%s]",
                         get_oper_name(source_p),
                         aconf->user, aconf->host, aconf->reason);
    sendto_one(source_p, ":%s NOTICE %s :Added RK-Line [%s@%s]",
               from, to, aconf->user, aconf->host);
    ilog(L_TRACE, "%s added K-Line for [%s@%s] [%s]",
         source_p->name, aconf->user, aconf->host, aconf->reason);
    log_oper_action(LOG_RKLINE_TYPE, source_p, "[%s@%s] [%s]\n",
                    aconf->user, aconf->host, aconf->reason);
    write_csv_line(out, "%s%s%s%s%s%s%d",
                   aconf->user, aconf->host,
                   aconf->reason, aconf->oper_reason, current_date,
                   get_oper_name(source_p), cur_time);
    break;
#endif
  case DLINE_TYPE:
    aconf = (struct AccessItem *)map_to_conf(conf);
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "%s added D-Line for [%s] [%s]",
                         get_oper_name(source_p), aconf->host, aconf->reason);
    sendto_one(source_p, ":%s NOTICE %s :Added D-Line [%s] to %s",
               from, to, aconf->host, filename);
    ilog(L_TRACE, "%s added D-Line for [%s] [%s]",
         get_oper_name(source_p), aconf->host, aconf->reason);
    log_oper_action(LOG_DLINE_TYPE, source_p, "[%s] [%s]\n",
                    aconf->host, aconf->reason);
    write_csv_line(out, "%s%s%s%s%s%d",
                   aconf->host, aconf->reason, aconf->oper_reason, 
                   current_date,
                   get_oper_name(source_p), cur_time);
    break;

  case XLINE_TYPE:
    xconf = (struct MatchItem *)map_to_conf(conf);
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "%s added X-Line for [%s] [%s]",
                         get_oper_name(source_p), conf->name,
                         xconf->reason);
    sendto_one(source_p,
               ":%s NOTICE %s :Added X-Line [%s] [%d] [%s] to %s",
               from, to, conf->name, 
               xconf->action, xconf->reason, filename);
    ilog(L_TRACE, "%s added X-Line for [%s] [%s]",
         get_oper_name(source_p), conf->name, xconf->reason);
    write_csv_line(out, "%s%s%s%s%s%d",
                   conf->name, xconf->reason, xconf->oper_reason,
                   current_date, get_oper_name(source_p), cur_time);
    break;
#ifdef HAVE_LIBPCRE
  case RXLINE_TYPE:
    xconf = (struct MatchItem *)map_to_conf(conf);
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "%s added RX-Line for [%s] [%s]",
                         get_oper_name(source_p), conf->name,
                         xconf->reason);
    sendto_one(source_p,
               ":%s NOTICE %s :Added RX-Line [%s] [%s] to %s",
               from, to, conf->name,
               xconf->reason, filename);
    ilog(L_TRACE, "%s added X-Line for [%s] [%s]",
         get_oper_name(source_p), conf->name, xconf->reason);
    write_csv_line(out, "%s%s%s%s%s%d",
                   conf->name, xconf->reason, xconf->oper_reason,
                   current_date, get_oper_name(source_p), cur_time);
    break;
#endif
  case CRESV_TYPE:
    cresv_p = (struct ResvChannel *)map_to_conf(conf);

    write_csv_line(out, "%s%s",
                   cresv_p->name, cresv_p->reason);
    break;

  case NRESV_TYPE:
    nresv_p = (struct MatchItem *)map_to_conf(conf);

    write_csv_line(out, "%s%s",
                   conf->name, nresv_p->reason);
    break;

  default:
    fbclose(out);
    return;
  }

  fbclose(out);
}

/*
 * write_csv_line()
 *
 * inputs       - pointer to FBFILE *
 *              - formatted string
 * output       -
 * side effects - single line is written to csv conf file
 */
static int
write_csv_line(FBFILE *out, const char *format, ...)
{
  char c;
  size_t bytes = 0;
  va_list args;
  char tmp[1024];
  char *str = tmp;
  const char *null_string = "";

  if (out == NULL)
    return(0);

  va_start(args, format);

  while ((c = *format++))
  {
    if (c == '%')
    {
      c = *format++;
      if (c == 's')
      {
        const char *p1 = va_arg(args, const char *);
        if (p1 == NULL)
          p1 = null_string;
        *str++ = '\"';
        ++bytes;
        while (*p1 != '\0')
        {
          *str++ = *p1++;
          ++bytes;
        }
        *str++ = '\"';
        *str++ = ',';
          
        bytes += 2;
        continue;
      }
      if (c == 'c')
      {
        *str++ = '\"';
        ++bytes;
        *str++ = (char) va_arg(args, int);
        ++bytes;
        *str++ = '\"';
        *str++ = ',';

        bytes += 2;
        continue;
      }

      if (c == 'd')
      {
        int v = va_arg(args, int);
        char t[40];
        char *p=t;

        while (v > 10)
        {
          *p++ = (v % 10) + '0';
          v = v/10;
        }
        *p++ = (v % 10) + '0';

        *str++ = '\"';
        ++bytes;
        while (p != t)
        {
          *str++ = *--p;
          ++bytes;
        }

        *str++ = '\"';
        *str++ = ',';
        bytes += 2;
        continue;
      }
      if (c != '%')
      {
        int ret;
        
        format -= 2;
        ret = vsprintf(str, format, args);
        str += ret;
        bytes += ret;
        *str++ = ',';

        ++bytes;
        break;
      }
    }
    *str++ = c;
    ++bytes;
  }

  if (*(str-1) == ',')
  {
    *(str-1) = '\n';
    *str = '\0';
  }
  else
  {
    *str++ = '\n';
    ++bytes;
    *str = '\0';
  }

  va_end(args);
  str = tmp;
  fbputs(str, out, bytes);

  return(bytes);
}

/*
 * getfield
 *
 * inputs       - input buffer
 * output       - next field
 * side effects - field breakup for ircd.conf file.
 */
static char *
getfield(char *newline)
{
  static char *line = NULL;
  char *end, *field;
        
  if (newline != NULL)
    line = newline;

  if (line == NULL)
    return(NULL);

  field = line;

  /* skip everything that's not a starting quote */
  for(;;)
  {
    if (*field == '\0')
      return(NULL);
    else if (*field == '"')
      break;
    ++field;
  }

  /* skip over the beginning " */
  end = ++field;
  
  for (;;)
  {
    /* At end of string, mark it as end and return */
    if ((*end == '\0') || (*end == '\n'))
    {
      line = NULL;
      return(NULL);
    }
    else if (*end == '\\')      /* found escape character ? */
    {
      end++;
    }
    else if (*end == '"')       /* found terminating " */
    {
      *end++ = '\0';
      line = end;
      return(field);
    }

    end++;
  }

  return (NULL);
}

/* remove_conf_line()
 *
 * inputs       - type of kline to remove
 *              - pointer to oper removing
 *              - pat1 pat2 patterns to match
 * output       - -1 if unsuccessful 0 if no change 1 if change
 * side effects -
 */
int
remove_conf_line(ConfType type, struct Client *source_p, const char *pat1, const char *pat2)
{
  const char *filename;
  FBFILE *in, *out;
  int pairme=0;
  char buf[IRCD_BUFSIZE], buff[IRCD_BUFSIZE], temppath[IRCD_BUFSIZE];
  char *found1;
  char *found2;
  int oldumask;
  int (*cmpfunc)(const char *, const char *) = irccmp;

  if (type == RXLINE_TYPE || type == RKLINE_TYPE)
    cmpfunc = strcmp;

  filename = get_conf_name(type);

  if ((in = fbopen(filename, "r")) == NULL)
  {
    sendto_one(source_p, ":%s NOTICE %s :Cannot open %s", me.name,
               source_p->name, filename);
    return -1;
  }

  ircsprintf(temppath, "%s.tmp", filename);
  oldumask = umask(0);

  if ((out = fbopen(temppath, "w")) == NULL)
  {
    sendto_one(source_p, ":%s NOTICE %s :Cannot open %s", me.name,
               source_p->name, temppath);
    fbclose(in);
    umask(oldumask);
    return -1;
  }

  umask(oldumask);
  oldumask = umask(0);

  while (fbgets(buf, sizeof(buf), in) != NULL) 
  {
    if ((*buf == '\0') || (*buf == '#'))
    {
      if (flush_write(source_p, in, out, buf, temppath) < 0)
        return -1;
    }
    
    /* Keep copy of original line, getfield trashes line as it goes */
    strlcpy(buff, buf, sizeof(buff));

    if ((found1 = getfield(buff)) == NULL)
    {
      if (flush_write(source_p, in, out, buf, temppath) < 0)
        return -1;
      continue;
    }

    if (pat2 != NULL)
    {
      if ((found2 = getfield(NULL)) == NULL)
      {
        if (flush_write(source_p, in, out, buf, temppath) < 0)
          return -1;
        continue;
      }

      if (!cmpfunc(pat1, found1) && !cmpfunc(pat2, found2))
      {
        pairme = 1;
        continue;
      }
      else
      {
        if(flush_write(source_p, in, out, buf, temppath) < 0)
          return -1;
        continue;
      }
    }
    else
    {
      if (!cmpfunc(pat1, found1))
      {
        pairme = 1;
        continue;
      }
      else
      {
        if(flush_write(source_p, in, out, buf, temppath) < 0)
          return -1;
        continue;
      }
    }
  }

  fbclose(in);
  fbclose(out);

/* The result of the rename should be checked too... oh well */
/* If there was an error on a write above, then its been reported
 * and I am not going to trash the original kline /conf file
 */

  if (pairme == 0)
  {
    if(temppath != NULL)
      (void)unlink(temppath);
    return 0;
  }
  else
  {
    (void)rename(temppath, filename);

    /* XXX
     * This is a very inefficient way of removing a kline/xline etc.
     * This next function call forces a complete re-read of all conf
     * files, instead of a re-read of the kline/dline etc. files modified
     * But, consider how often an /quote unkline etc. is done compared
     * to how often a /quote kline is done. Its not a biggie in
     * the grand scheme of things. If it does become a biggie,
     * we will rewrite it - Dianora
     */

    rehash(0);
    return 1;
  }
}

/*
 * flush_write()
 *
 * inputs       - pointer to client structure of oper requesting unkline
 *              - in is the input file descriptor
 *              - out is the output file descriptor
 *              - buf is the buffer to write
 *              - ntowrite is the expected number of character to be written
 *              - temppath is the temporary file name to be written
 * output       - -1 for error on write
 *              - 0 for ok
 * side effects - if successful, the buf is written to output file
 *                if a write failure happesn, and the file pointed to
 *                by temppath, if its non NULL, is removed.
 *
 * The idea here is, to be as robust as possible when writing to the 
 * kline file.
 *
 * -Dianora
 */
static int
flush_write(struct Client *source_p, FBFILE *in, FBFILE* out, 
            const char *buf, const char *temppath)
{
  int error_on_write = (fbputs(buf, out, strlen(buf)) < 0) ? (-1) : (0);

  if (error_on_write)
  {
    sendto_one(source_p,":%s NOTICE %s :Unable to write to %s aborting",
               me.name, source_p->name, temppath);
    if(temppath != NULL)
      (void)unlink(temppath);
    fbclose(in);
    fbclose(out);
  }

  return (error_on_write);
}
Revision:	1028
Committed:	Sun Nov 8 13:03:38 2009 UTC (16 years, 11 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid/src/csvlib.c*
File size:	18100 byte(s)
Log Message:	- move ircd-hybrid-7.2 to trunk
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* csvlib.c - set of functions to deal with csv type of conf files
4			*
5			* Copyright (C) 2003 by Diane Bruce, Stuart Walsh
6			* Use it anywhere you like, if you like it buy us a beer.
7			* If it's broken, don't bother us with the lawyers.
8			*
9	knight	31	* $Id$
10	adx	30	*/
11
12	michael	1009	#include "config.h"
13			#ifdef HAVE_LIBPCRE
14			#include <pcre.h>
15			#endif
16	adx	30	#include "stdinc.h"
17	michael	1011	#include "list.h"
18	adx	30	#include "s_log.h"
19			#include "s_conf.h"
20			#include "hostmask.h"
21			#include "client.h"
22			#include "irc_string.h"
23			#include "sprintf_irc.h"
24			#include "memory.h"
25			#include "send.h"
26			#include "resv.h"
27			#include "s_serv.h"
28
29			/* Fix "statement not reached" warnings on Sun WorkShop C */
30			#ifdef __SUNPRO_C
31			# pragma error_messages(off, E_STATEMENT_NOT_REACHED)
32			#endif
33
34
35			static void parse_csv_line(char *, ...);
36			static int write_csv_line(FBFILE , const char , ...);
37			static int flush_write(struct Client , FBFILE , FBFILE *,
38			const char , const char );
39			static char getfield(char );
40
41			/* parse_csv_file()
42			*
43			* inputs - FILE pointer
44			* - type of conf to parse
45			* output - none
46			* side effects -
47			*/
48			void
49			parse_csv_file(FBFILE *file, ConfType conf_type)
50			{
51			struct ConfItem *conf;
52			struct AccessItem *aconf;
53			struct MatchItem *match_item;
54			char *name_field=NULL;
55			char *user_field=NULL;
56			char *reason_field=NULL;
57			char *oper_reason=NULL;
58			char *host_field=NULL;
59			char line[IRCD_BUFSIZE];
60			char *p;
61
62			while (fbgets(line, sizeof(line), file) != NULL)
63			{
64			if ((p = strchr(line, '\n')) != NULL)
65			*p = '\0';
66
67			if ((line[0] == '\0') \|\| (line[0] == '#'))
68			continue;
69
70			switch(conf_type)
71			{
72			case KLINE_TYPE:
73			parse_csv_line(line, &user_field, &host_field, &reason_field, NULL);
74			conf = make_conf_item(KLINE_TYPE);
75			aconf = map_to_conf(conf);
76
77			if (host_field != NULL)
78			DupString(aconf->host, host_field);
79			if (reason_field != NULL)
80			DupString(aconf->reason, reason_field);
81			if (user_field != NULL)
82			DupString(aconf->user, user_field);
83			if (aconf->host != NULL)
84			add_conf_by_address(CONF_KILL, aconf);
85			break;
86	michael	1009	#ifdef HAVE_LIBPCRE
87	adx	30	case RKLINE_TYPE:
88			{
89			const char *errptr = NULL;
90			pcre exp_user = NULL, exp_host = NULL;
91
92			parse_csv_line(line, &user_field, &host_field, &reason_field, NULL);
93
94			if (host_field == NULL \|\| user_field == NULL)
95			break;
96
97			if (!(exp_user = ircd_pcre_compile(user_field, &errptr)) \|\|
98			!(exp_host = ircd_pcre_compile(host_field, &errptr)))
99			{
100			sendto_realops_flags(UMODE_ALL, L_ALL,
101			"Failed to add regular expression based K-Line: %s", errptr);
102			break;
103			}
104
105			aconf = map_to_conf(make_conf_item(RKLINE_TYPE));
106
107			aconf->regexuser = exp_user;
108			aconf->regexhost = exp_host;
109
110			DupString(aconf->user, user_field);
111			DupString(aconf->host, host_field);
112
113			if (reason_field != NULL)
114			DupString(aconf->reason, reason_field);
115			else
116			DupString(aconf->reason, "No reason");
117
118			}
119			break;
120	michael	1009	#endif
121	adx	30	case DLINE_TYPE:
122			parse_csv_line(line, &host_field, &reason_field, NULL);
123	michael	1005
124			if (host_field && parse_netmask(host_field, NULL, NULL) != HM_HOST)
125			{
126			aconf = map_to_conf(make_conf_item(DLINE_TYPE));
127			DupString(aconf->host, host_field);
128
129			if (reason_field != NULL)
130			DupString(aconf->reason, reason_field);
131			else
132			DupString(aconf->reason, "No reason");
133			add_conf_by_address(CONF_DLINE, aconf);
134			}
135
136	adx	30	break;
137
138			case XLINE_TYPE:
139			parse_csv_line(line, &name_field, &reason_field, &oper_reason, NULL);
140			conf = make_conf_item(XLINE_TYPE);
141			match_item = (struct MatchItem *)map_to_conf(conf);
142			if (name_field != NULL)
143			DupString(conf->name, name_field);
144			if (reason_field != NULL)
145			DupString(match_item->reason, reason_field);
146			break;
147	michael	1009	#ifdef HAVE_LIBPCRE
148	adx	30	case RXLINE_TYPE:
149			{
150			const char *errptr = NULL;
151			pcre *exp_p = NULL;
152
153			parse_csv_line(line, &name_field, &reason_field, &oper_reason, NULL);
154
155			if (name_field == NULL)
156			break;
157
158			if (!(exp_p = ircd_pcre_compile(name_field, &errptr)))
159			{
160			sendto_realops_flags(UMODE_ALL, L_ALL,
161			"Failed to add regular expression based X-Line: %s", errptr);
162			break;
163			}
164
165			conf = make_conf_item(RXLINE_TYPE);
166			conf->regexpname = exp_p;
167			match_item = map_to_conf(conf);
168			DupString(conf->name, name_field);
169
170			if (reason_field != NULL)
171			DupString(match_item->reason, reason_field);
172			else
173			DupString(match_item->reason, "No reason");
174			}
175			break;
176	michael	1009	#endif
177	adx	30	case CRESV_TYPE:
178			parse_csv_line(line, &name_field, &reason_field, NULL);
179			(void)create_channel_resv(name_field, reason_field, 0);
180			break;
181
182			case NRESV_TYPE:
183			parse_csv_line(line, &name_field, &reason_field, NULL);
184			(void)create_nick_resv(name_field, reason_field, 0);
185			break;
186
187			case GLINE_TYPE:
188			case GDENY_TYPE:
189			case CONF_TYPE:
190			case OPER_TYPE:
191			case CLIENT_TYPE:
192			case SERVER_TYPE:
193			case CLUSTER_TYPE:
194			case HUB_TYPE:
195			case LEAF_TYPE:
196			case ULINE_TYPE:
197			case EXEMPTDLINE_TYPE:
198			case CLASS_TYPE:
199	michael	1009	default:
200	adx	30	break;
201			}
202			}
203			}
204
205			/*
206			* parse_csv_line()
207			*
208			* inputs - pointer to line to parse
209			* output -
210			* side effects -
211			*/
212
213			static void
214			parse_csv_line(char *line, ...)
215			{
216			va_list args;
217			char **dest;
218			char *field = NULL;
219
220			va_start(args, line);
221
222			for (; ;)
223			{
224			dest = va_arg(args, char **);
225			if ((dest == NULL) \|\| ((field = getfield(field ? NULL : line)) == NULL))
226			{
227			va_end(args);
228			return;
229			}
230			*dest = field;
231			}
232			}
233
234			/* write_conf_line()
235			*
236			* inputs - pointer to struct AccessItem
237			* - string current_date (small date)
238			* - time_t cur_time
239			* output - NONE
240			* side effects - This function takes care of
241			* finding right conf file, writing
242			* the right lines to this file,
243			* notifying the oper that their kline/dline etc. is in place
244			* notifying the opers on the server about the k/d etc. line
245			*
246			* - Dianora
247			*/
248			void
249			write_conf_line(struct Client source_p, struct ConfItem conf,
250			const char *current_date, time_t cur_time)
251			{
252			FBFILE *out;
253			const char filename, from, *to;
254			struct AccessItem *aconf;
255			struct MatchItem *xconf;
256			struct ResvChannel *cresv_p=NULL;
257			struct MatchItem *nresv_p=NULL;
258			ConfType type;
259
260			type = conf->type;
261			filename = get_conf_name(type);
262
263			if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
264			{
265			from = me.id;
266			to = source_p->id;
267			}
268			else
269			{
270			from = me.name;
271			to = source_p->name;
272			}
273
274			if ((out = fbopen(filename, "a")) == NULL)
275			{
276			sendto_realops_flags(UMODE_ALL, L_ALL,
277			"*** Problem opening %s ", filename);
278			return;
279			}
280
281			switch(type)
282			{
283			case KLINE_TYPE:
284			aconf = (struct AccessItem *)map_to_conf(conf);
285			sendto_realops_flags(UMODE_ALL, L_ALL,
286			"%s added K-Line for [%s@%s] [%s]",
287			get_oper_name(source_p),
288			aconf->user, aconf->host, aconf->reason);
289			sendto_one(source_p, ":%s NOTICE %s :Added K-Line [%s@%s]",
290			from, to, aconf->user, aconf->host);
291			ilog(L_TRACE, "%s added K-Line for [%s@%s] [%s]",
292			source_p->name, aconf->user, aconf->host, aconf->reason);
293			log_oper_action(LOG_KLINE_TYPE, source_p, "[%s@%s] [%s]\n",
294			aconf->user, aconf->host, aconf->reason);
295			write_csv_line(out, "%s%s%s%s%s%s%d",
296			aconf->user, aconf->host,
297			aconf->reason, aconf->oper_reason, current_date,
298			get_oper_name(source_p), cur_time);
299			break;
300	michael	1009	#ifdef HAVE_LIBPCRE
301	adx	30	case RKLINE_TYPE:
302			aconf = map_to_conf(conf);
303			sendto_realops_flags(UMODE_ALL, L_ALL,
304			"%s added RK-Line for [%s@%s] [%s]",
305			get_oper_name(source_p),
306			aconf->user, aconf->host, aconf->reason);
307			sendto_one(source_p, ":%s NOTICE %s :Added RK-Line [%s@%s]",
308			from, to, aconf->user, aconf->host);
309			ilog(L_TRACE, "%s added K-Line for [%s@%s] [%s]",
310			source_p->name, aconf->user, aconf->host, aconf->reason);
311			log_oper_action(LOG_RKLINE_TYPE, source_p, "[%s@%s] [%s]\n",
312			aconf->user, aconf->host, aconf->reason);
313			write_csv_line(out, "%s%s%s%s%s%s%d",
314			aconf->user, aconf->host,
315			aconf->reason, aconf->oper_reason, current_date,
316			get_oper_name(source_p), cur_time);
317			break;
318	michael	1009	#endif
319	adx	30	case DLINE_TYPE:
320			aconf = (struct AccessItem *)map_to_conf(conf);
321			sendto_realops_flags(UMODE_ALL, L_ALL,
322			"%s added D-Line for [%s] [%s]",
323			get_oper_name(source_p), aconf->host, aconf->reason);
324			sendto_one(source_p, ":%s NOTICE %s :Added D-Line [%s] to %s",
325			from, to, aconf->host, filename);
326			ilog(L_TRACE, "%s added D-Line for [%s] [%s]",
327			get_oper_name(source_p), aconf->host, aconf->reason);
328			log_oper_action(LOG_DLINE_TYPE, source_p, "[%s] [%s]\n",
329			aconf->host, aconf->reason);
330			write_csv_line(out, "%s%s%s%s%s%d",
331			aconf->host, aconf->reason, aconf->oper_reason,
332			current_date,
333			get_oper_name(source_p), cur_time);
334			break;
335
336			case XLINE_TYPE:
337			xconf = (struct MatchItem *)map_to_conf(conf);
338			sendto_realops_flags(UMODE_ALL, L_ALL,
339			"%s added X-Line for [%s] [%s]",
340			get_oper_name(source_p), conf->name,
341			xconf->reason);
342			sendto_one(source_p,
343			":%s NOTICE %s :Added X-Line [%s] [%d] [%s] to %s",
344			from, to, conf->name,
345			xconf->action, xconf->reason, filename);
346			ilog(L_TRACE, "%s added X-Line for [%s] [%s]",
347			get_oper_name(source_p), conf->name, xconf->reason);
348			write_csv_line(out, "%s%s%s%s%s%d",
349			conf->name, xconf->reason, xconf->oper_reason,
350			current_date, get_oper_name(source_p), cur_time);
351			break;
352	michael	1009	#ifdef HAVE_LIBPCRE
353	adx	30	case RXLINE_TYPE:
354			xconf = (struct MatchItem *)map_to_conf(conf);
355			sendto_realops_flags(UMODE_ALL, L_ALL,
356			"%s added RX-Line for [%s] [%s]",
357			get_oper_name(source_p), conf->name,
358			xconf->reason);
359			sendto_one(source_p,
360			":%s NOTICE %s :Added RX-Line [%s] [%s] to %s",
361			from, to, conf->name,
362			xconf->reason, filename);
363			ilog(L_TRACE, "%s added X-Line for [%s] [%s]",
364			get_oper_name(source_p), conf->name, xconf->reason);
365			write_csv_line(out, "%s%s%s%s%s%d",
366			conf->name, xconf->reason, xconf->oper_reason,
367			current_date, get_oper_name(source_p), cur_time);
368			break;
369	michael	1009	#endif
370	adx	30	case CRESV_TYPE:
371			cresv_p = (struct ResvChannel *)map_to_conf(conf);
372
373			write_csv_line(out, "%s%s",
374			cresv_p->name, cresv_p->reason);
375			break;
376
377			case NRESV_TYPE:
378			nresv_p = (struct MatchItem *)map_to_conf(conf);
379
380			write_csv_line(out, "%s%s",
381			conf->name, nresv_p->reason);
382			break;
383
384			default:
385			fbclose(out);
386			return;
387			}
388
389			fbclose(out);
390			}
391
392			/*
393			* write_csv_line()
394			*
395			* inputs - pointer to FBFILE *
396			* - formatted string
397			* output -
398			* side effects - single line is written to csv conf file
399			*/
400			static int
401			write_csv_line(FBFILE out, const char format, ...)
402			{
403			char c;
404			size_t bytes = 0;
405			va_list args;
406			char tmp[1024];
407			char *str = tmp;
408			const char *null_string = "";
409
410			if (out == NULL)
411			return(0);
412
413			va_start(args, format);
414
415			while ((c = *format++))
416			{
417			if (c == '%')
418			{
419			c = *format++;
420			if (c == 's')
421			{
422			const char p1 = va_arg(args, const char );
423			if (p1 == NULL)
424			p1 = null_string;
425			*str++ = '\"';
426			++bytes;
427			while (*p1 != '\0')
428			{
429			str++ = p1++;
430			++bytes;
431			}
432			*str++ = '\"';
433			*str++ = ',';
434
435			bytes += 2;
436			continue;
437			}
438			if (c == 'c')
439			{
440			*str++ = '\"';
441			++bytes;
442			*str++ = (char) va_arg(args, int);
443			++bytes;
444			*str++ = '\"';
445			*str++ = ',';
446
447			bytes += 2;
448			continue;
449			}
450
451			if (c == 'd')
452			{
453			int v = va_arg(args, int);
454			char t[40];
455			char *p=t;
456
457			while (v > 10)
458			{
459			*p++ = (v % 10) + '0';
460			v = v/10;
461			}
462			*p++ = (v % 10) + '0';
463
464			*str++ = '\"';
465			++bytes;
466			while (p != t)
467			{
468			str++ = --p;
469			++bytes;
470			}
471
472			*str++ = '\"';
473			*str++ = ',';
474			bytes += 2;
475			continue;
476			}
477			if (c != '%')
478			{
479			int ret;
480
481			format -= 2;
482			ret = vsprintf(str, format, args);
483			str += ret;
484			bytes += ret;
485			*str++ = ',';
486
487			++bytes;
488			break;
489			}
490			}
491			*str++ = c;
492			++bytes;
493			}
494
495			if (*(str-1) == ',')
496			{
497			*(str-1) = '\n';
498			*str = '\0';
499			}
500			else
501			{
502			*str++ = '\n';
503			++bytes;
504			*str = '\0';
505			}
506
507			va_end(args);
508			str = tmp;
509			fbputs(str, out, bytes);
510
511			return(bytes);
512			}
513
514			/*
515			* getfield
516			*
517			* inputs - input buffer
518			* output - next field
519			* side effects - field breakup for ircd.conf file.
520			*/
521			static char *
522			getfield(char *newline)
523			{
524			static char *line = NULL;
525			char end, field;
526
527			if (newline != NULL)
528			line = newline;
529
530			if (line == NULL)
531			return(NULL);
532
533			field = line;
534
535	db	521	/* skip everything that's not a starting quote */
536			for(;;)
537			{
538			if (*field == '\0')
539			return(NULL);
540			else if (*field == '"')
541			break;
542	adx	30	++field;
543	db	521	}
544	adx	30
545			/* skip over the beginning " */
546			end = ++field;
547
548			for (;;)
549			{
550			/* At end of string, mark it as end and return */
551			if ((end == '\0') \|\| (end == '\n'))
552			{
553			line = NULL;
554			return(NULL);
555			}
556			else if (end == '\\') / found escape character ? */
557			{
558			end++;
559			}
560			else if (end == '"') / found terminating " */
561			{
562			*end++ = '\0';
563			line = end;
564			return(field);
565			}
566
567			end++;
568			}
569
570			return (NULL);
571			}
572
573			/* remove_conf_line()
574			*
575			* inputs - type of kline to remove
576			* - pointer to oper removing
577			* - pat1 pat2 patterns to match
578			* output - -1 if unsuccessful 0 if no change 1 if change
579			* side effects -
580			*/
581			int
582			remove_conf_line(ConfType type, struct Client source_p, const char pat1, const char *pat2)
583			{
584			const char *filename;
585			FBFILE in, out;
586			int pairme=0;
587			char buf[IRCD_BUFSIZE], buff[IRCD_BUFSIZE], temppath[IRCD_BUFSIZE];
588			char *found1;
589			char *found2;
590			int oldumask;
591			int (cmpfunc)(const char , const char *) = irccmp;
592
593			if (type == RXLINE_TYPE \|\| type == RKLINE_TYPE)
594			cmpfunc = strcmp;
595
596			filename = get_conf_name(type);
597
598			if ((in = fbopen(filename, "r")) == NULL)
599			{
600			sendto_one(source_p, ":%s NOTICE %s :Cannot open %s", me.name,
601			source_p->name, filename);
602			return -1;
603			}
604
605			ircsprintf(temppath, "%s.tmp", filename);
606			oldumask = umask(0);
607
608			if ((out = fbopen(temppath, "w")) == NULL)
609			{
610			sendto_one(source_p, ":%s NOTICE %s :Cannot open %s", me.name,
611			source_p->name, temppath);
612			fbclose(in);
613			umask(oldumask);
614			return -1;
615			}
616
617			umask(oldumask);
618			oldumask = umask(0);
619
620			while (fbgets(buf, sizeof(buf), in) != NULL)
621			{
622			if ((buf == '\0') \|\| (buf == '#'))
623			{
624			if (flush_write(source_p, in, out, buf, temppath) < 0)
625			return -1;
626			}
627
628			/* Keep copy of original line, getfield trashes line as it goes */
629			strlcpy(buff, buf, sizeof(buff));
630
631			if ((found1 = getfield(buff)) == NULL)
632			{
633			if (flush_write(source_p, in, out, buf, temppath) < 0)
634			return -1;
635			continue;
636			}
637
638			if (pat2 != NULL)
639			{
640			if ((found2 = getfield(NULL)) == NULL)
641			{
642			if (flush_write(source_p, in, out, buf, temppath) < 0)
643			return -1;
644			continue;
645			}
646
647			if (!cmpfunc(pat1, found1) && !cmpfunc(pat2, found2))
648			{
649			pairme = 1;
650			continue;
651			}
652			else
653			{
654			if(flush_write(source_p, in, out, buf, temppath) < 0)
655			return -1;
656			continue;
657			}
658			}
659			else
660			{
661			if (!cmpfunc(pat1, found1))
662			{
663			pairme = 1;
664			continue;
665			}
666			else
667			{
668			if(flush_write(source_p, in, out, buf, temppath) < 0)
669			return -1;
670			continue;
671			}
672			}
673			}
674
675			fbclose(in);
676			fbclose(out);
677
678			/* The result of the rename should be checked too... oh well */
679			/* If there was an error on a write above, then its been reported
680			* and I am not going to trash the original kline /conf file
681			*/
682
683			if (pairme == 0)
684			{
685			if(temppath != NULL)
686			(void)unlink(temppath);
687			return 0;
688			}
689			else
690			{
691			(void)rename(temppath, filename);
692
693			/* XXX
694			* This is a very inefficient way of removing a kline/xline etc.
695			* This next function call forces a complete re-read of all conf
696			* files, instead of a re-read of the kline/dline etc. files modified
697			* But, consider how often an /quote unkline etc. is done compared
698			* to how often a /quote kline is done. Its not a biggie in
699			* the grand scheme of things. If it does become a biggie,
700			* we will rewrite it - Dianora
701			*/
702
703			rehash(0);
704			return 1;
705			}
706			}
707
708			/*
709			* flush_write()
710			*
711			* inputs - pointer to client structure of oper requesting unkline
712			* - in is the input file descriptor
713			* - out is the output file descriptor
714			* - buf is the buffer to write
715			* - ntowrite is the expected number of character to be written
716			* - temppath is the temporary file name to be written
717			* output - -1 for error on write
718			* - 0 for ok
719			* side effects - if successful, the buf is written to output file
720			* if a write failure happesn, and the file pointed to
721			* by temppath, if its non NULL, is removed.
722			*
723			* The idea here is, to be as robust as possible when writing to the
724			* kline file.
725			*
726			* -Dianora
727			*/
728			static int
729			flush_write(struct Client source_p, FBFILE in, FBFILE* out,
730			const char buf, const char temppath)
731			{
732			int error_on_write = (fbputs(buf, out, strlen(buf)) < 0) ? (-1) : (0);
733
734			if (error_on_write)
735			{
736			sendto_one(source_p,":%s NOTICE %s :Unable to write to %s aborting",
737			me.name, source_p->name, temppath);
738			if(temppath != NULL)
739			(void)unlink(temppath);
740			fbclose(in);
741			fbclose(out);
742			}
743
744			return (error_on_write);
745			}