/*** $Id: misc.c,v 1.32 2003/09/04 03:46:47 weiym Exp $**** misc.c: This file include some miscelleous functions. **** Copyright (C) 2003 Feynman Software.** Copyright (C) 1999 ~ 2002 Wei Yongming.**** Create date: 1998/12/31**** Current maintainer: Wei Yongming.*//*** 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*//*** TODO:*/ #include <stdio.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include <errno.h>#include <limits.h>#include <pwd.h>#include <sys/ioctl.h>#include <sys/types.h>#include <linux/kd.h>#include <asm/param.h>#include "common.h"#include "minigui.h"#include "gdi.h"#include "window.h"#include "misc.h"#ifndef _INCORE_RESchar ETCFILEPATH [MAX_PATH + 1];#define ETCFILENAME "MiniGUI.cfg"static BOOL LookForEtcFile (void){    char etcfile [MAX_PATH + 1];    char buff [10];    struct passwd *pwd;    if ((pwd = getpwuid (geteuid ())) != NULL) {        strcpy (etcfile, pwd->pw_dir);        if (etcfile [strlen (etcfile) - 1] != '/')            strcat (etcfile, "/");        strcat (etcfile, ".");        strcat (etcfile, ETCFILENAME);        if (GetValueFromEtcFile (etcfile, "system", "gal_engine", buff, 8) ==  ETC_OK) {            strcpy (ETCFILEPATH, etcfile);            return TRUE;        }    }    strcpy (etcfile, "/usr/local/etc/" ETCFILENAME);    if (GetValueFromEtcFile (etcfile, "system", "gal_engine", buff, 8) ==  ETC_OK) {        strcpy (ETCFILEPATH, etcfile);        return TRUE;    }    strcpy (etcfile, "/etc/" ETCFILENAME);    if (GetValueFromEtcFile (etcfile, "system", "gal_engine", buff, 8) ==  ETC_OK) {        strcpy (ETCFILEPATH, etcfile);        return TRUE;    }        return FALSE;}BOOL InitMisc (void){    if (!LookForEtcFile ())    {        fprintf (stderr, "MISC: Can not locate your MiniGUI.cfg file or bad files!\n");        return FALSE;    }    return TRUE;}void TerminateMisc (void){}#endif /* _INCORE_RES *//****************************** ETC file support ******************************/// This function locate the specified section in the etc file.static int etc_LocateSection(FILE* fp, const char* pSection, FILE* bak_fp){    char szBuff[ETC_MAXLINE + 1];    char* current;    char* tail;    while (TRUE) {        if (!fgets(szBuff, ETC_MAXLINE, fp)) {            if (feof (fp))                return ETC_SECTIONNOTFOUND;            else                return ETC_FILEIOFAILED;        }        else if (bak_fp && fputs (szBuff, bak_fp) == EOF)            return ETC_FILEIOFAILED;                current = szBuff;        while (*current == ' ' ||  *current == '\t') current++;         if (*current == ';' || *current == '#') continue;        if (*current++ == '[')             while (*current == ' ' ||  *current == '\t') current ++;        else            continue;        // Locate the tail.        tail = current;        while (*tail != ']' && *tail != '\n' &&              *tail != ';' && *tail != '#' && *tail != '\0')              tail++;        *tail = '\0';        while (*tail == ' ' || *tail == '\t') {            *tail = '\0';            tail--;         }                    if (strcmp (current, pSection) == 0)            return ETC_OK;     }    return ETC_SECTIONNOTFOUND;}// This function locate the specified key in the etc file.static int etc_LocateKeyValue(FILE* fp, const char* pKey,                                BOOL bCurSection, char* pValue, int iLen,                               FILE* bak_fp, char* nextSection){    char szBuff[ETC_MAXLINE + 1 + 1];    char* current;    char* tail;    char* value;    while (TRUE) {        if (!fgets(szBuff, ETC_MAXLINE, fp))            return ETC_FILEIOFAILED;        if (szBuff [strlen (szBuff) - 1] == '\n')            szBuff [strlen (szBuff) - 1] = '\0';        current = szBuff;        while (*current == ' ' ||  *current == '\t') current++;         if (*current == ';' || *current == '#') continue;        if (*current == '[') {            if (bCurSection) {                strcpy (nextSection, current);                return ETC_KEYNOTFOUND;             }            else                continue;        }        tail = current;        while (*tail != '=' && *tail != '\n' &&              *tail != ';' && *tail != '#' && *tail != '\0')              tail++;        value = tail + 1;        if (*tail != '=')            *value = '\0';         *tail-- = '\0';        while (*tail == ' ' || *tail == '\t') {            *tail = '\0';            tail--;         }                    if (strcmp (current, pKey) == 0) {            tail = value;            while (*tail != '\n' && *tail != '\0') tail++;            *tail = '\0';             if (pValue)                strncpy (pValue, value, iLen);            return ETC_OK;         }        else if (bak_fp && *current != '\0')            fprintf (bak_fp, "%s=%s\n", current, value);    }    return ETC_KEYNOTFOUND;}/* Function: GetValueFromEtcFile(const char* pEtcFile, const char* pSection, *                               const char* pKey, char* pValue, int iLen); * Parameter: *     pEtcFile: etc file path name. *     pSection: Section name. *     pKey:     Key name. *     pValue:   The buffer will store the value of the key. *     iLen:     The max length of value string. * Return: *     int               meaning *     ETC_FILENOTFOUND           The etc file not found.  *     ETC_SECTIONNOTFOUND        The section is not found.  *     ETC_EKYNOTFOUND        The Key is not found. *     ETC_OK            OK. */int GUIAPI GetValueFromEtcFile(const char* pEtcFile, const char* pSection,                               const char* pKey, char* pValue, int iLen){    FILE* fp;    char tempSection [ETC_MAXLINE + 2];    if (!(fp = fopen(pEtcFile, "r")))         return ETC_FILENOTFOUND;    if (pSection)         if (etc_LocateSection (fp, pSection, NULL) != ETC_OK) {             fclose (fp);             return ETC_SECTIONNOTFOUND;         }    if (etc_LocateKeyValue (fp, pKey, pSection != NULL,                 pValue, iLen, NULL, tempSection) != ETC_OK) {         fclose (fp);         return ETC_KEYNOTFOUND;    }    fclose (fp);    return ETC_OK;}/* Function: GetIntValueFromEtcFile(const char* pEtcFile, const char* pSection, *                               const char* pKey); * Parameter: *     pEtcFile: etc file path name. *     pSection: Section name. *     pKey:     Key name. * Return: *     int                      meaning *     ETC_FILENOTFOUND             The etc file not found.  *     ETC_SECTIONNOTFOUND          The section is not found.  *     ETC_EKYNOTFOUND              The Key is not found. *     ETC_OK                       OK. */int GUIAPI GetIntValueFromEtcFile(const char* pEtcFile, const char* pSection,                               const char* pKey, int* value){    int ret;    char szBuff [51];    ret = GetValueFromEtcFile (pEtcFile, pSection, pKey, szBuff, 50);    if (ret < 0)        return ret;    *value = strtol (szBuff, NULL, 0);    if ((*value == LONG_MIN || *value == LONG_MAX) && errno == ERANGE)