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")
#	Content
1	/*
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	* $Id$
23	*/
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	}