ircd-hybrid/src/numeric.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  numeric.c: Numeric handling functions.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  This program 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 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id$
 */

#include "stdinc.h"

#include "numeric.h"
#include "common.h"     /* NULL cripes */
#include "send.h"
#include "client.h"
#include "messages.tab"

static char used_locale[LOCALE_LENGTH] = "standard";

/*
 * form_str
 *
 * inputs       - numeric
 * output       - corresponding string
 * side effects - NONE
 */
const char* form_str(int numeric)
{
  assert(-1 < numeric);
  assert(numeric < ERR_LAST_ERR_MSG);

  if (numeric > ERR_LAST_ERR_MSG)
    numeric = ERR_LAST_ERR_MSG;
  if (numeric < 0)
    numeric = ERR_LAST_ERR_MSG;

  assert(replies[numeric].standard != NULL);

  return (replies[numeric].translated != NULL ? replies[numeric].translated :
                                                replies[numeric].standard);
}

/* Attempts to change a numeric with index "reply" to "new_reply".
 * Returns 1 if ok, 0 otherwise.
 */
static int
change_reply(const char *locale, int linecnt, int reply, char *new_reply)
{
  int found;
  char *new = new_reply;
  const char *old = replies[reply].standard;

  for (; *new; new++)
  {
    if (*new == '%')
    {
      if (!*++new) break;
      if (*new != '%')
      {
        /* We've just found a format symbol. Check if it is the next format
         * symbol in the original reply.
         */
        for (; *new >= '0' && *new <= '9'; new++); /* skip size prefix */
        found = 0;
        for (; *old; old++)
        {
          if (*old == '%')
          {
            if (!*++old) break;  /* shouldn't happen */
            if (*old != '%')
            {
              for (; *old >= '0' && *old <= '9'; old++); /* skip size prefix */
              if (*new != *old++)
              {
                ilog(L_ERROR, "Incompatible format symbols (%s.lang, %d)",
                              locale, linecnt);
                return 0;
              }
              found = 1;
              break;
            }
          }
        }
        if (!found)
        {
          ilog(L_ERROR, "Too many format symbols (%s.lang, %d)", locale, linecnt);
          return(0);
        }
      }
    }
  }

  MyFree(replies[reply].translated);
  DupString(replies[reply].translated, new_reply);
  return(1);
}

/* Loads a language file. Errors are logged into the log file. */
void
set_locale(const char *locale)
{
  int i, res = 1, linecnt = 0;
  char buffer[IRCD_BUFSIZE + 1];
  char *ident, *reply;
  FBFILE *f;

  /* Restore standard replies */
  for (i = 0; i <= ERR_LAST_ERR_MSG; i++)   /* 0 isn't a magic number! ;> */
  {
    if (replies[i].translated != NULL)
    {
      MyFree(replies[i].translated);
      replies[i].translated = NULL;
    }
  }

  if (strchr(locale, '/') != NULL)
  {
    strlcpy(used_locale, "standard", sizeof(used_locale));  /* XXX paranoid */
    return;
  }

  /* yes, I know - the slash isn't necessary. But I have to be sure
   * that it'll work even if some lame admin won't put "/" at the end
   * of MSGPATH.
   */
  snprintf(buffer, sizeof(buffer), "%s/%s.lang", MSGPATH, locale);
  if ((f = fbopen(buffer, "r")) == NULL)
  {
    strlcpy(used_locale, "standard", sizeof(used_locale));  /* XXX */
    return;
  }

  /* Process the language file */
  while (fbgets(buffer, sizeof(buffer), f))
  {
    ++linecnt;
    if (buffer[0] == ';')
      continue;   /* that's a comment */

    if ((ident = strpbrk(buffer, "\r\n")) != NULL)
      *ident = '\0';

    /* skip spaces if there are any */
    for (ident = buffer; *ident == ' ' || *ident == '\t'; ident++)/* null */;
    if (*ident == '\0')
      continue;            /* empty line */

    /* skip after the reply identificator */
    for (reply = ident; *reply != ' ' && *reply != '\t' && *reply != ':';
      reply++)
      if (*reply == '\0') goto error;

    if (*reply == ' ' || *reply == '\t')
    {
      for (*reply++ = '\0'; *reply == ' ' || *reply == '\t'; reply++);
      if (*reply != ':')
      {
        error:
        ilog(L_ERROR, "Invalid line in language file (%s.lang, %d)",
                      locale, linecnt);
        res = 0;
        continue;
      }
    }
    else
      *reply++ = '\0';
    if (*ident == '\0')
      goto error;

    /* skip to the beginning of reply */
    while (*reply == ' ' || *reply == '\t') reply++;
    if (*reply == '\0')
      goto error;

    for (i = 0; i <= ERR_LAST_ERR_MSG; i++)
    {
      if (replies[i].name != NULL)
      {
        if (irccmp(replies[i].name, ident) == 0)
        {
          if (!change_reply(locale, linecnt, i, reply)) res = 0;
          i = -1;
          break;
        }
      }
    }
    if (i != -1)
    {
      ilog(L_ERROR,
           "Unknown numeric %s (%s.lang, %d)", ident, locale, linecnt);
      res = 0;
    }
  }
  fbclose(f);

  strlcpy(used_locale, locale, sizeof(used_locale));
  if (!res)
    sendto_realops_flags(UMODE_ALL, L_ADMIN, "Language file [%s] contains "
                         "errors, check server log file for more details",
                         used_locale);
}

/* Returns the name of current locale. */
const char *
get_locale(void)
{
  return used_locale;
}
Revision:	69
Committed:	Tue Oct 4 16:09:51 2005 UTC (19 years, 10 months ago) by adx
Content type:	text/x-csrc
File size:	5849 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			* numeric.c: Numeric handling functions.
4			*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26
27			#include "numeric.h"
28			#include "common.h" /* NULL cripes */
29			#include "send.h"
30			#include "client.h"
31			#include "messages.tab"
32
33			static char used_locale[LOCALE_LENGTH] = "standard";
34
35			/*
36			* form_str
37			*
38			* inputs - numeric
39			* output - corresponding string
40			* side effects - NONE
41			*/
42			const char* form_str(int numeric)
43			{
44			assert(-1 < numeric);
45			assert(numeric < ERR_LAST_ERR_MSG);
46
47			if (numeric > ERR_LAST_ERR_MSG)
48			numeric = ERR_LAST_ERR_MSG;
49			if (numeric < 0)
50			numeric = ERR_LAST_ERR_MSG;
51
52			assert(replies[numeric].standard != NULL);
53
54			return (replies[numeric].translated != NULL ? replies[numeric].translated :
55			replies[numeric].standard);
56			}
57
58			/* Attempts to change a numeric with index "reply" to "new_reply".
59			* Returns 1 if ok, 0 otherwise.
60			*/
61			static int
62			change_reply(const char locale, int linecnt, int reply, char new_reply)
63			{
64			int found;
65			char *new = new_reply;
66			const char *old = replies[reply].standard;
67
68			for (; *new; new++)
69			{
70			if (*new == '%')
71			{
72			if (!*++new) break;
73			if (*new != '%')
74			{
75			/* We've just found a format symbol. Check if it is the next format
76			* symbol in the original reply.
77			*/
78			for (; new >= '0' && new <= '9'; new++); /* skip size prefix */
79			found = 0;
80			for (; *old; old++)
81			{
82			if (*old == '%')
83			{
84			if (!++old) break; / shouldn't happen */
85			if (*old != '%')
86			{
87			for (; old >= '0' && old <= '9'; old++); /* skip size prefix */
88			if (new != old++)
89			{
90			ilog(L_ERROR, "Incompatible format symbols (%s.lang, %d)",
91			locale, linecnt);
92			return 0;
93			}
94			found = 1;
95			break;
96			}
97			}
98			}
99			if (!found)
100			{
101			ilog(L_ERROR, "Too many format symbols (%s.lang, %d)", locale, linecnt);
102			return(0);
103			}
104			}
105			}
106			}
107
108			MyFree(replies[reply].translated);
109			DupString(replies[reply].translated, new_reply);
110			return(1);
111			}
112
113			/* Loads a language file. Errors are logged into the log file. */
114			void
115			set_locale(const char *locale)
116			{
117			int i, res = 1, linecnt = 0;
118			char buffer[IRCD_BUFSIZE + 1];
119			char ident, reply;
120			FBFILE *f;
121
122			/* Restore standard replies */
123			for (i = 0; i <= ERR_LAST_ERR_MSG; i++) /* 0 isn't a magic number! ;> */
124			{
125			if (replies[i].translated != NULL)
126			{
127			MyFree(replies[i].translated);
128			replies[i].translated = NULL;
129			}
130			}
131
132			if (strchr(locale, '/') != NULL)
133			{
134			strlcpy(used_locale, "standard", sizeof(used_locale)); /* XXX paranoid */
135			return;
136			}
137
138			/* yes, I know - the slash isn't necessary. But I have to be sure
139			* that it'll work even if some lame admin won't put "/" at the end
140			* of MSGPATH.
141			*/
142			snprintf(buffer, sizeof(buffer), "%s/%s.lang", MSGPATH, locale);
143			if ((f = fbopen(buffer, "r")) == NULL)
144			{
145			strlcpy(used_locale, "standard", sizeof(used_locale)); /* XXX */
146			return;
147			}
148
149			/* Process the language file */
150			while (fbgets(buffer, sizeof(buffer), f))
151			{
152			++linecnt;
153			if (buffer[0] == ';')
154			continue; /* that's a comment */
155
156			if ((ident = strpbrk(buffer, "\r\n")) != NULL)
157			*ident = '\0';
158
159			/* skip spaces if there are any */
160			for (ident = buffer; ident == ' ' \|\| ident == '\t'; ident++)/* null */;
161			if (*ident == '\0')
162			continue; /* empty line */
163
164			/* skip after the reply identificator */
165			for (reply = ident; reply != ' ' && reply != '\t' && *reply != ':';
166			reply++)
167			if (*reply == '\0') goto error;
168
169			if (reply == ' ' \|\| reply == '\t')
170			{
171			for (reply++ = '\0'; reply == ' ' \|\| *reply == '\t'; reply++);
172			if (*reply != ':')
173			{
174			error:
175			ilog(L_ERROR, "Invalid line in language file (%s.lang, %d)",
176			locale, linecnt);
177			res = 0;
178			continue;
179			}
180			}
181			else
182			*reply++ = '\0';
183			if (*ident == '\0')
184			goto error;
185
186			/* skip to the beginning of reply */
187			while (reply == ' ' \|\| reply == '\t') reply++;
188			if (*reply == '\0')
189			goto error;
190
191			for (i = 0; i <= ERR_LAST_ERR_MSG; i++)
192			{
193			if (replies[i].name != NULL)
194			{
195			if (irccmp(replies[i].name, ident) == 0)
196			{
197			if (!change_reply(locale, linecnt, i, reply)) res = 0;
198			i = -1;
199			break;
200			}
201			}
202			}
203			if (i != -1)
204			{
205			ilog(L_ERROR,
206			"Unknown numeric %s (%s.lang, %d)", ident, locale, linecnt);
207			res = 0;
208			}
209			}
210			fbclose(f);
211
212			strlcpy(used_locale, locale, sizeof(used_locale));
213			if (!res)
214			sendto_realops_flags(UMODE_ALL, L_ADMIN, "Language file [%s] contains "
215			"errors, check server log file for more details",
216			used_locale);
217			}
218
219			/* Returns the name of current locale. */
220			const char *
221			get_locale(void)
222			{
223			return used_locale;
224			}