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/* |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
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* |
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* Copyright (c) 1999-2014 ircd-hybrid development team |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
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/*! \file m_help.c |
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* \brief Includes required functions for processing the HELP command. |
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* \version $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "client.h" |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "send.h" |
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#include "conf.h" |
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#include "parse.h" |
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#include "modules.h" |
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#include "irc_string.h" |
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|
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#define HELPLEN 400 |
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|
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|
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static void |
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sendhelpfile(struct Client *source_p, const char *path, const char *topic) |
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{ |
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FILE *file = NULL; |
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char line[HELPLEN] = ""; |
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|
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if ((file = fopen(path, "r")) == NULL) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_HELPNOTFOUND, topic); |
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return; |
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} |
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|
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if (fgets(line, sizeof(line), file) == NULL) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_HELPNOTFOUND, topic); |
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fclose(file); |
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return; |
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} |
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|
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line[strlen(line) - 1] = '\0'; |
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sendto_one_numeric(source_p, &me, RPL_HELPSTART, topic, line); |
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|
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while (fgets(line, sizeof(line), file)) |
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{ |
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line[strlen(line) - 1] = '\0'; |
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|
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sendto_one_numeric(source_p, &me, RPL_HELPTXT, topic, line); |
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} |
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|
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fclose(file); |
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sendto_one_numeric(source_p, &me, RPL_ENDOFHELP, topic); |
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} |
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|
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static void |
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do_help(struct Client *source_p, char *topic) |
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{ |
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char h_index[] = "index"; |
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char path[HYB_PATH_MAX + 1]; |
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struct stat sb; |
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|
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if (EmptyString(topic)) |
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topic = h_index; |
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else |
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for (char *p = topic; *p; ++p) |
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*p = ToLower(*p); |
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|
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if (strpbrk(topic, "/\\")) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_HELPNOTFOUND, topic); |
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return; |
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} |
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|
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if (strlen(HPATH) + strlen(topic) + 1 > HYB_PATH_MAX) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_HELPNOTFOUND, topic); |
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return; |
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} |
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|
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snprintf(path, sizeof(path), "%s/%s", HPATH, topic); |
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|
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if (stat(path, &sb) < 0) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_HELPNOTFOUND, topic); |
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return; |
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} |
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|
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if (!S_ISREG(sb.st_mode)) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_HELPNOTFOUND, topic); |
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return; |
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} |
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|
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sendhelpfile(source_p, path, topic); |
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} |
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|
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/*! \brief HELP command handler |
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* |
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* \param source_p Pointer to allocated Client struct from which the message |
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* originally comes from. This can be a local or remote client. |
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* \param parc Integer holding the number of supplied arguments. |
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* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL |
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* pointers. |
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* \note Valid arguments for this command are: |
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* - parv[0] = command |
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* - parv[1] = help topic |
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*/ |
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static int |
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m_help(struct Client *source_p, int parc, char *parv[]) |
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{ |
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static time_t last_used = 0; |
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|
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if ((last_used + ConfigGeneral.pace_wait_simple) > CurrentTime) |
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{ |
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sendto_one_numeric(source_p, &me, RPL_LOAD2HI); |
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return 0; |
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} |
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|
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last_used = CurrentTime; |
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|
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do_help(source_p, parv[1]); |
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return 0; |
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} |
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|
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/*! \brief HELP command handler |
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* |
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* \param source_p Pointer to allocated Client struct from which the message |
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* originally comes from. This can be a local or remote client. |
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* \param parc Integer holding the number of supplied arguments. |
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* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL |
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* pointers. |
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* \note Valid arguments for this command are: |
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* - parv[0] = command |
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* - parv[1] = help topic |
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*/ |
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static int |
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mo_help(struct Client *source_p, int parc, char *parv[]) |
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{ |
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do_help(source_p, parv[1]); |
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return 0; |
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} |
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|
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static struct Message help_msgtab = |
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{ |
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"HELP", NULL, 0, 0, 0, MAXPARA, MFLG_SLOW, 0, |
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{ m_unregistered, m_help, m_ignore, m_ignore, mo_help, m_ignore } |
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}; |
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|
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static void |
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module_init(void) |
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{ |
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mod_add_cmd(&help_msgtab); |
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} |
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|
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static void |
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module_exit(void) |
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{ |
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mod_del_cmd(&help_msgtab); |
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} |
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|
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struct module module_entry = |
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{ |
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.node = { NULL, NULL, NULL }, |
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.name = NULL, |
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.version = "$Revision$", |
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.handle = NULL, |
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.modinit = module_init, |
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.modexit = module_exit, |
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.flags = 0 |
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}; |
