ircd-hybrid/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 "stdinc.h"
#include "s_conf.h"
#include "hostmask.h"
#include "client.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;

    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;

    case DLINE_TYPE:
      parse_csv_line(line, &host_field, &reason_field, NULL);
      conf = make_conf_item(DLINE_TYPE);
      aconf = (struct AccessItem *)map_to_conf(conf);
      if (host_field != NULL)
        DupString(aconf->host, host_field);
      if (reason_field != NULL)
        DupString(aconf->reason, reason_field);
      conf_add_d_conf(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;

    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;

    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:
      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;

  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;

  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;

  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;

  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;

  while (*field != '"') /* skip everything that's not a starting quote */
    ++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:	69
Committed:	Tue Oct 4 16:09:51 2005 UTC (20 years, 10 months ago) by adx
Content type:	text/x-csrc
File size:	17612 byte(s)
Log Message:	- splitted ircd/libio, all headers connected with libio sources have been moved for internal use only. To use libio interface, include "libio.h" (which is already done in "stdinc.h")
#	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			#include "stdinc.h"
13			#include "s_conf.h"
14			#include "hostmask.h"
15			#include "client.h"
16			#include "send.h"
17			#include "resv.h"
18			#include "s_serv.h"
19
20			/* Fix "statement not reached" warnings on Sun WorkShop C */
21			#ifdef __SUNPRO_C
22			# pragma error_messages(off, E_STATEMENT_NOT_REACHED)
23			#endif
24
25
26			static void parse_csv_line(char *, ...);
27			static int write_csv_line(FBFILE , const char , ...);
28			static int flush_write(struct Client , FBFILE , FBFILE *,
29			const char , const char );
30			static char getfield(char );
31
32			/* parse_csv_file()
33			*
34			* inputs - FILE pointer
35			* - type of conf to parse
36			* output - none
37			* side effects -
38			*/
39			void
40			parse_csv_file(FBFILE *file, ConfType conf_type)
41			{
42			struct ConfItem *conf;
43			struct AccessItem *aconf;
44			struct MatchItem *match_item;
45			char *name_field=NULL;
46			char *user_field=NULL;
47			char *reason_field=NULL;
48			char *oper_reason=NULL;
49			char *host_field=NULL;
50			char line[IRCD_BUFSIZE];
51			char *p;
52
53			while (fbgets(line, sizeof(line), file) != NULL)
54			{
55			if ((p = strchr(line, '\n')) != NULL)
56			*p = '\0';
57
58			if ((line[0] == '\0') \|\| (line[0] == '#'))
59			continue;
60
61			switch(conf_type)
62			{
63			case KLINE_TYPE:
64			parse_csv_line(line, &user_field, &host_field, &reason_field, NULL);
65			conf = make_conf_item(KLINE_TYPE);
66			aconf = map_to_conf(conf);
67
68			if (host_field != NULL)
69			DupString(aconf->host, host_field);
70			if (reason_field != NULL)
71			DupString(aconf->reason, reason_field);
72			if (user_field != NULL)
73			DupString(aconf->user, user_field);
74			if (aconf->host != NULL)
75			add_conf_by_address(CONF_KILL, aconf);
76			break;
77
78			case RKLINE_TYPE:
79			{
80			const char *errptr = NULL;
81			pcre exp_user = NULL, exp_host = NULL;
82
83			parse_csv_line(line, &user_field, &host_field, &reason_field, NULL);
84
85			if (host_field == NULL \|\| user_field == NULL)
86			break;
87
88			if (!(exp_user = ircd_pcre_compile(user_field, &errptr)) \|\|
89			!(exp_host = ircd_pcre_compile(host_field, &errptr)))
90			{
91			sendto_realops_flags(UMODE_ALL, L_ALL,
92			"Failed to add regular expression based K-Line: %s", errptr);
93			break;
94			}
95
96			aconf = map_to_conf(make_conf_item(RKLINE_TYPE));
97
98			aconf->regexuser = exp_user;
99			aconf->regexhost = exp_host;
100
101			DupString(aconf->user, user_field);
102			DupString(aconf->host, host_field);
103
104			if (reason_field != NULL)
105			DupString(aconf->reason, reason_field);
106			else
107			DupString(aconf->reason, "No reason");
108
109			}
110			break;
111
112			case DLINE_TYPE:
113			parse_csv_line(line, &host_field, &reason_field, NULL);
114			conf = make_conf_item(DLINE_TYPE);
115			aconf = (struct AccessItem *)map_to_conf(conf);
116			if (host_field != NULL)
117			DupString(aconf->host, host_field);
118			if (reason_field != NULL)
119			DupString(aconf->reason, reason_field);
120			conf_add_d_conf(aconf);
121			break;
122
123			case XLINE_TYPE:
124			parse_csv_line(line, &name_field, &reason_field, &oper_reason, NULL);
125			conf = make_conf_item(XLINE_TYPE);
126			match_item = (struct MatchItem *)map_to_conf(conf);
127			if (name_field != NULL)
128			DupString(conf->name, name_field);
129			if (reason_field != NULL)
130			DupString(match_item->reason, reason_field);
131			break;
132
133			case RXLINE_TYPE:
134			{
135			const char *errptr = NULL;
136			pcre *exp_p = NULL;
137
138			parse_csv_line(line, &name_field, &reason_field, &oper_reason, NULL);
139
140			if (name_field == NULL)
141			break;
142
143			if (!(exp_p = ircd_pcre_compile(name_field, &errptr)))
144			{
145			sendto_realops_flags(UMODE_ALL, L_ALL,
146			"Failed to add regular expression based X-Line: %s", errptr);
147			break;
148			}
149
150			conf = make_conf_item(RXLINE_TYPE);
151			conf->regexpname = exp_p;
152			match_item = map_to_conf(conf);
153			DupString(conf->name, name_field);
154
155			if (reason_field != NULL)
156			DupString(match_item->reason, reason_field);
157			else
158			DupString(match_item->reason, "No reason");
159			}
160			break;
161
162			case CRESV_TYPE:
163			parse_csv_line(line, &name_field, &reason_field, NULL);
164			(void)create_channel_resv(name_field, reason_field, 0);
165			break;
166
167			case NRESV_TYPE:
168			parse_csv_line(line, &name_field, &reason_field, NULL);
169			(void)create_nick_resv(name_field, reason_field, 0);
170			break;
171
172			case GLINE_TYPE:
173			case GDENY_TYPE:
174			case CONF_TYPE:
175			case OPER_TYPE:
176			case CLIENT_TYPE:
177			case SERVER_TYPE:
178			case CLUSTER_TYPE:
179			case HUB_TYPE:
180			case LEAF_TYPE:
181			case ULINE_TYPE:
182			case EXEMPTDLINE_TYPE:
183			case CLASS_TYPE:
184			break;
185			}
186			}
187			}
188
189			/*
190			* parse_csv_line()
191			*
192			* inputs - pointer to line to parse
193			* output -
194			* side effects -
195			*/
196
197			static void
198			parse_csv_line(char *line, ...)
199			{
200			va_list args;
201			char **dest;
202			char *field = NULL;
203
204			va_start(args, line);
205
206			for (; ;)
207			{
208			dest = va_arg(args, char **);
209			if ((dest == NULL) \|\| ((field = getfield(field ? NULL : line)) == NULL))
210			{
211			va_end(args);
212			return;
213			}
214			*dest = field;
215			}
216			}
217
218			/* write_conf_line()
219			*
220			* inputs - pointer to struct AccessItem
221			* - string current_date (small date)
222			* - time_t cur_time
223			* output - NONE
224			* side effects - This function takes care of
225			* finding right conf file, writing
226			* the right lines to this file,
227			* notifying the oper that their kline/dline etc. is in place
228			* notifying the opers on the server about the k/d etc. line
229			*
230			* - Dianora
231			*/
232			void
233			write_conf_line(struct Client source_p, struct ConfItem conf,
234			const char *current_date, time_t cur_time)
235			{
236			FBFILE *out;
237			const char filename, from, *to;
238			struct AccessItem *aconf;
239			struct MatchItem *xconf;
240			struct ResvChannel *cresv_p=NULL;
241			struct MatchItem *nresv_p=NULL;
242			ConfType type;
243
244			type = conf->type;
245			filename = get_conf_name(type);
246
247			if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
248			{
249			from = me.id;
250			to = source_p->id;
251			}
252			else
253			{
254			from = me.name;
255			to = source_p->name;
256			}
257
258			if ((out = fbopen(filename, "a")) == NULL)
259			{
260			sendto_realops_flags(UMODE_ALL, L_ALL,
261			"*** Problem opening %s ", filename);
262			return;
263			}
264
265			switch(type)
266			{
267			case KLINE_TYPE:
268			aconf = (struct AccessItem *)map_to_conf(conf);
269			sendto_realops_flags(UMODE_ALL, L_ALL,
270			"%s added K-Line for [%s@%s] [%s]",
271			get_oper_name(source_p),
272			aconf->user, aconf->host, aconf->reason);
273			sendto_one(source_p, ":%s NOTICE %s :Added K-Line [%s@%s]",
274			from, to, aconf->user, aconf->host);
275			ilog(L_TRACE, "%s added K-Line for [%s@%s] [%s]",
276			source_p->name, aconf->user, aconf->host, aconf->reason);
277			log_oper_action(LOG_KLINE_TYPE, source_p, "[%s@%s] [%s]\n",
278			aconf->user, aconf->host, aconf->reason);
279			write_csv_line(out, "%s%s%s%s%s%s%d",
280			aconf->user, aconf->host,
281			aconf->reason, aconf->oper_reason, current_date,
282			get_oper_name(source_p), cur_time);
283			break;
284
285			case RKLINE_TYPE:
286			aconf = map_to_conf(conf);
287			sendto_realops_flags(UMODE_ALL, L_ALL,
288			"%s added RK-Line for [%s@%s] [%s]",
289			get_oper_name(source_p),
290			aconf->user, aconf->host, aconf->reason);
291			sendto_one(source_p, ":%s NOTICE %s :Added RK-Line [%s@%s]",
292			from, to, aconf->user, aconf->host);
293			ilog(L_TRACE, "%s added K-Line for [%s@%s] [%s]",
294			source_p->name, aconf->user, aconf->host, aconf->reason);
295			log_oper_action(LOG_RKLINE_TYPE, source_p, "[%s@%s] [%s]\n",
296			aconf->user, aconf->host, aconf->reason);
297			write_csv_line(out, "%s%s%s%s%s%s%d",
298			aconf->user, aconf->host,
299			aconf->reason, aconf->oper_reason, current_date,
300			get_oper_name(source_p), cur_time);
301			break;
302
303			case DLINE_TYPE:
304			aconf = (struct AccessItem *)map_to_conf(conf);
305			sendto_realops_flags(UMODE_ALL, L_ALL,
306			"%s added D-Line for [%s] [%s]",
307			get_oper_name(source_p), aconf->host, aconf->reason);
308			sendto_one(source_p, ":%s NOTICE %s :Added D-Line [%s] to %s",
309			from, to, aconf->host, filename);
310			ilog(L_TRACE, "%s added D-Line for [%s] [%s]",
311			get_oper_name(source_p), aconf->host, aconf->reason);
312			log_oper_action(LOG_DLINE_TYPE, source_p, "[%s] [%s]\n",
313			aconf->host, aconf->reason);
314			write_csv_line(out, "%s%s%s%s%s%d",
315			aconf->host, aconf->reason, aconf->oper_reason,
316			current_date,
317			get_oper_name(source_p), cur_time);
318			break;
319
320			case XLINE_TYPE:
321			xconf = (struct MatchItem *)map_to_conf(conf);
322			sendto_realops_flags(UMODE_ALL, L_ALL,
323			"%s added X-Line for [%s] [%s]",
324			get_oper_name(source_p), conf->name,
325			xconf->reason);
326			sendto_one(source_p,
327			":%s NOTICE %s :Added X-Line [%s] [%d] [%s] to %s",
328			from, to, conf->name,
329			xconf->action, xconf->reason, filename);
330			ilog(L_TRACE, "%s added X-Line for [%s] [%s]",
331			get_oper_name(source_p), conf->name, xconf->reason);
332			write_csv_line(out, "%s%s%s%s%s%d",
333			conf->name, xconf->reason, xconf->oper_reason,
334			current_date, get_oper_name(source_p), cur_time);
335			break;
336
337			case RXLINE_TYPE:
338			xconf = (struct MatchItem *)map_to_conf(conf);
339			sendto_realops_flags(UMODE_ALL, L_ALL,
340			"%s added RX-Line for [%s] [%s]",
341			get_oper_name(source_p), conf->name,
342			xconf->reason);
343			sendto_one(source_p,
344			":%s NOTICE %s :Added RX-Line [%s] [%s] to %s",
345			from, to, conf->name,
346			xconf->reason, filename);
347			ilog(L_TRACE, "%s added X-Line for [%s] [%s]",
348			get_oper_name(source_p), conf->name, xconf->reason);
349			write_csv_line(out, "%s%s%s%s%s%d",
350			conf->name, xconf->reason, xconf->oper_reason,
351			current_date, get_oper_name(source_p), cur_time);
352			break;
353
354			case CRESV_TYPE:
355			cresv_p = (struct ResvChannel *)map_to_conf(conf);
356
357			write_csv_line(out, "%s%s",
358			cresv_p->name, cresv_p->reason);
359			break;
360
361			case NRESV_TYPE:
362			nresv_p = (struct MatchItem *)map_to_conf(conf);
363
364			write_csv_line(out, "%s%s",
365			conf->name, nresv_p->reason);
366			break;
367
368			default:
369			fbclose(out);
370			return;
371			}
372
373			fbclose(out);
374			}
375
376			/*
377			* write_csv_line()
378			*
379			* inputs - pointer to FBFILE *
380			* - formatted string
381			* output -
382			* side effects - single line is written to csv conf file
383			*/
384			static int
385			write_csv_line(FBFILE out, const char format, ...)
386			{
387			char c;
388			size_t bytes = 0;
389			va_list args;
390			char tmp[1024];
391			char *str = tmp;
392			const char *null_string = "";
393
394			if (out == NULL)
395			return(0);
396
397			va_start(args, format);
398
399			while ((c = *format++))
400			{
401			if (c == '%')
402			{
403			c = *format++;
404			if (c == 's')
405			{
406			const char p1 = va_arg(args, const char );
407			if (p1 == NULL)
408			p1 = null_string;
409			*str++ = '\"';
410			++bytes;
411			while (*p1 != '\0')
412			{
413			str++ = p1++;
414			++bytes;
415			}
416			*str++ = '\"';
417			*str++ = ',';
418
419			bytes += 2;
420			continue;
421			}
422			if (c == 'c')
423			{
424			*str++ = '\"';
425			++bytes;
426			*str++ = (char) va_arg(args, int);
427			++bytes;
428			*str++ = '\"';
429			*str++ = ',';
430
431			bytes += 2;
432			continue;
433			}
434
435			if (c == 'd')
436			{
437			int v = va_arg(args, int);
438			char t[40];
439			char *p=t;
440
441			while (v > 10)
442			{
443			*p++ = (v % 10) + '0';
444			v = v/10;
445			}
446			*p++ = (v % 10) + '0';
447
448			*str++ = '\"';
449			++bytes;
450			while (p != t)
451			{
452			str++ = --p;
453			++bytes;
454			}
455
456			*str++ = '\"';
457			*str++ = ',';
458			bytes += 2;
459			continue;
460			}
461			if (c != '%')
462			{
463			int ret;
464
465			format -= 2;
466			ret = vsprintf(str, format, args);
467			str += ret;
468			bytes += ret;
469			*str++ = ',';
470
471			++bytes;
472			break;
473			}
474			}
475			*str++ = c;
476			++bytes;
477			}
478
479			if (*(str-1) == ',')
480			{
481			*(str-1) = '\n';
482			*str = '\0';
483			}
484			else
485			{
486			*str++ = '\n';
487			++bytes;
488			*str = '\0';
489			}
490
491			va_end(args);
492			str = tmp;
493			fbputs(str, out, bytes);
494
495			return(bytes);
496			}
497
498			/*
499			* getfield
500			*
501			* inputs - input buffer
502			* output - next field
503			* side effects - field breakup for ircd.conf file.
504			*/
505			static char *
506			getfield(char *newline)
507			{
508			static char *line = NULL;
509			char end, field;
510
511			if (newline != NULL)
512			line = newline;
513
514			if (line == NULL)
515			return(NULL);
516
517			field = line;
518
519			while (field != '"') / skip everything that's not a starting quote */
520			++field;
521
522			/* skip over the beginning " */
523			end = ++field;
524
525			for (;;)
526			{
527			/* At end of string, mark it as end and return */
528			if ((end == '\0') \|\| (end == '\n'))
529			{
530			line = NULL;
531			return(NULL);
532			}
533			else if (end == '\\') / found escape character ? */
534			{
535			end++;
536			}
537			else if (end == '"') / found terminating " */
538			{
539			*end++ = '\0';
540			line = end;
541			return(field);
542			}
543
544			end++;
545			}
546
547			return (NULL);
548			}
549
550			/* remove_conf_line()
551			*
552			* inputs - type of kline to remove
553			* - pointer to oper removing
554			* - pat1 pat2 patterns to match
555			* output - -1 if unsuccessful 0 if no change 1 if change
556			* side effects -
557			*/
558			int
559			remove_conf_line(ConfType type, struct Client source_p, const char pat1, const char *pat2)
560			{
561			const char *filename;
562			FBFILE in, out;
563			int pairme=0;
564			char buf[IRCD_BUFSIZE], buff[IRCD_BUFSIZE], temppath[IRCD_BUFSIZE];
565			char *found1;
566			char *found2;
567			int oldumask;
568			int (cmpfunc)(const char , const char *) = irccmp;
569
570			if (type == RXLINE_TYPE \|\| type == RKLINE_TYPE)
571			cmpfunc = strcmp;
572
573			filename = get_conf_name(type);
574
575			if ((in = fbopen(filename, "r")) == NULL)
576			{
577			sendto_one(source_p, ":%s NOTICE %s :Cannot open %s", me.name,
578			source_p->name, filename);
579			return -1;
580			}
581
582			ircsprintf(temppath, "%s.tmp", filename);
583			oldumask = umask(0);
584
585			if ((out = fbopen(temppath, "w")) == NULL)
586			{
587			sendto_one(source_p, ":%s NOTICE %s :Cannot open %s", me.name,
588			source_p->name, temppath);
589			fbclose(in);
590			umask(oldumask);
591			return -1;
592			}
593
594			umask(oldumask);
595			oldumask = umask(0);
596
597			while (fbgets(buf, sizeof(buf), in) != NULL)
598			{
599			if ((buf == '\0') \|\| (buf == '#'))
600			{
601			if (flush_write(source_p, in, out, buf, temppath) < 0)
602			return -1;
603			}
604
605			/* Keep copy of original line, getfield trashes line as it goes */
606			strlcpy(buff, buf, sizeof(buff));
607
608			if ((found1 = getfield(buff)) == NULL)
609			{
610			if (flush_write(source_p, in, out, buf, temppath) < 0)
611			return -1;
612			continue;
613			}
614
615			if (pat2 != NULL)
616			{
617			if ((found2 = getfield(NULL)) == NULL)
618			{
619			if (flush_write(source_p, in, out, buf, temppath) < 0)
620			return -1;
621			continue;
622			}
623
624			if (!cmpfunc(pat1, found1) && !cmpfunc(pat2, found2))
625			{
626			pairme = 1;
627			continue;
628			}
629			else
630			{
631			if(flush_write(source_p, in, out, buf, temppath) < 0)
632			return -1;
633			continue;
634			}
635			}
636			else
637			{
638			if (!cmpfunc(pat1, found1))
639			{
640			pairme = 1;
641			continue;
642			}
643			else
644			{
645			if(flush_write(source_p, in, out, buf, temppath) < 0)
646			return -1;
647			continue;
648			}
649			}
650			}
651
652			fbclose(in);
653			fbclose(out);
654
655			/* The result of the rename should be checked too... oh well */
656			/* If there was an error on a write above, then its been reported
657			* and I am not going to trash the original kline /conf file
658			*/
659
660			if (pairme == 0)
661			{
662			if(temppath != NULL)
663			(void)unlink(temppath);
664			return 0;
665			}
666			else
667			{
668			(void)rename(temppath, filename);
669
670			/* XXX
671			* This is a very inefficient way of removing a kline/xline etc.
672			* This next function call forces a complete re-read of all conf
673			* files, instead of a re-read of the kline/dline etc. files modified
674			* But, consider how often an /quote unkline etc. is done compared
675			* to how often a /quote kline is done. Its not a biggie in
676			* the grand scheme of things. If it does become a biggie,
677			* we will rewrite it - Dianora
678			*/
679
680			rehash(0);
681			return 1;
682			}
683			}
684
685			/*
686			* flush_write()
687			*
688			* inputs - pointer to client structure of oper requesting unkline
689			* - in is the input file descriptor
690			* - out is the output file descriptor
691			* - buf is the buffer to write
692			* - ntowrite is the expected number of character to be written
693			* - temppath is the temporary file name to be written
694			* output - -1 for error on write
695			* - 0 for ok
696			* side effects - if successful, the buf is written to output file
697			* if a write failure happesn, and the file pointed to
698			* by temppath, if its non NULL, is removed.
699			*
700			* The idea here is, to be as robust as possible when writing to the
701			* kline file.
702			*
703			* -Dianora
704			*/
705			static int
706			flush_write(struct Client source_p, FBFILE in, FBFILE* out,
707			const char buf, const char temppath)
708			{
709			int error_on_write = (fbputs(buf, out, strlen(buf)) < 0) ? (-1) : (0);
710
711			if (error_on_write)
712			{
713			sendto_one(source_p,":%s NOTICE %s :Unable to write to %s aborting",
714			me.name, source_p->name, temppath);
715			if(temppath != NULL)
716			(void)unlink(temppath);
717			fbclose(in);
718			fbclose(out);
719			}
720
721			return (error_on_write);
722			}