parsing/textfile.cpp

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/**************************************************************************
    Lighspark, a free flash player implementation

    Copyright (C) 2009,2010  Alessandro Pignotti (a.pignotti@sssup.it)

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

Credits:
        www.lighthouse3d.com
**************************************************************************/

#include "textfile.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "compat.h"

char *textFileRead(const char *fn)
{
        FILE *fp;
        char *content = NULL;

        int count=0;

        if (fn != NULL)
        {
                fp = fopen(fn,"rt");

                if (fp != NULL)
                {
                        fseek(fp, 0, SEEK_END);
                        count = ftell(fp);
                        rewind(fp);
                        if (count > 0)
                        {
                                content = (char *) malloc(count + 1);
                                count = fread(content, 1, count, fp);
                                content[count] = '\0';
                        }
                        fclose(fp);
                }
        }
        return content;
}

int textFileWrite(const char *fn, char *s)
{
        FILE *fp;
        int status = 0;

        if (fn != NULL)
        {
                fp = fopen(fn,"w");
                if (fp != NULL)
                {
                        if (fwrite(s,sizeof(char),strlen(s),fp) == strlen(s))
                                status = 1;
                        fclose(fp);
                }
        }
        return(status);
}


char *dataFileRead(const char *fn)
{
        char *ret;
        int max_path_len=0;
        const char *paths[] = { 
                ".",
                "..",
                DATADIR,
                "/usr/share/lightspark",
        };
        for(uint32_t i=0;i<sizeof(paths)/sizeof(const char*);i++)
                max_path_len=imax(strlen(paths[i]),max_path_len);
        max_path_len+=strlen(fn)+2;
        char* buf=new char[max_path_len];

        for (unsigned int i = 0; i < sizeof(paths)/sizeof(paths[0]); i++)
        {
                snprintf(buf, max_path_len, "%s/%s", paths[i], fn);
                ret = textFileRead(buf);
                if (ret)
                {
                        delete[] buf;
                        return ret;
                }
        }

        delete[] buf;
        return ret;
}

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