Scol » Lib2D GTK » Utils_g

/*! \file scol_gbase.c

*	\brief all functions of this API

*   \author Stephane Bisaro

*/

/*

This source file is part of Scol

For the latest info, see http://www.scolring.org

Copyright (c) 2010 Stephane Bisaro, aka Iri <iri@irizone.net>

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 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 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, write to the Free Software Foundation, Inc., 59 Temple

Place - Suite 330, Boston, MA 02111-1307, USA, or go to

http://www.gnu.org/copyleft/lesser.txt

For others informations, please contact us from http://www.scolring.org/

*/

#include "../include/scol_gbase.h"

#ifdef __cplusplus

#error This source file is not C++ but rather C. Please use a C-compiler

#endif

#if ((defined _WIN32) || (defined __WIN32__))

cbmachine ww;

#endif

mmachine  mm;

/**

 * \brief _gbaseUserName : Returns the user (or real) name

 *

 * fun [] S

 *

 * \param : nothing

 * \return S : this name

 */

int SCOL_gbaseUserName (mmachine m)

{

    const gchar * name;

    name = g_get_user_name ();

    if (name == NULL)

        name = g_get_real_name ();

    if (name == NULL)

    {

        Mpushstrbloc (m, "unknown");

        return 0;

    }

    Mpushstrbloc (m, (char *) name);

    return 0;

}

/**

 * \brief _gBaseHostName : Returns the host name

 *

 * fun [] S

 *

 * \param : nothing

 * \return S : this name

 */

int SCOL_gBaseHostName (mmachine m)

{

    const gchar * name;

    name = g_get_host_name ();

    if (name == NULL)

    {

        Mpushstrbloc (m, "unknown");

        return 0;

    }

    Mpushstrbloc (m, (char *) name);

    return 0;

}

/**

 * \brief _gBaseDirCur : Returns the current directory (by default on MS Windows "C:\Program Files\Scol Voyager")

 *

 * fun [] S

 *

 * \param : nothing

 * \return S : this directory or "unknown" if undefined

 */

int SCOL_gBaseDirCur (mmachine m)

{

    const gchar * name;

    name = g_get_current_dir ();

    if (name == NULL)

    {

        Mpushstrbloc (m, "unknown");

        return 0;

    }

    Mpushstrbloc (m, (char *) name);

    return 0;

}

/**

 * \brief _gBasePathAbsolute : Returns 1 if the given file_name is an absolute file name.

 *

 * fun [S] I

 *

 * \param S : any path

 * \return I : 1 if TRUE,otherwise 0

 */

 int SCOL_gBasePathAbsolute (mmachine m)

 {

    int mpath;

    gboolean value;

    mpath = MMpull (m);

    if (mpath == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    value = g_path_is_absolute (MMstartstr (m, MTOP (mpath)));

    MMpush (m, ITOM (value));

    return 0;

 }

/**

 * \brief _gBasePathBase : Returns the last component of the filename

 *

 * fun [S] S

 *

 * \param S : any path

 * \return S : this last component

 */

int SCOL_gBasePathBase (mmachine m)

{

    int mpath;

    gchar *base;

    mpath = MMpull (m);

    if (mpath == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    base = g_path_get_basename (MMstartstr (m, MTOP (mpath)));

    Mpushstrbloc (m, base);

    g_free (base);

    return 0;

}

/**

 * \brief _gBasePathDir : Returns the directory components of a file name.

 *

 * fun [S] S

 *

 * \param S : any path

 * \return S : this directory

 */

int SCOL_gBasePathDir (mmachine m)

{

    int mpath;

    gchar *dir;

    mpath = MMpull (m);

    if (mpath == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    dir = g_path_get_dirname (MMstartstr (m, MTOP (mpath)));

    Mpushstrbloc (m, dir);

    g_free (dir);

    return 0;

}

/**

 * \brief _gBasePathBuild : Creates a filename from a list of elements using the correct separator for filenames.

 *

 * fun [[S r1] I] S

 *

 * \param [S r1] : a list of elements (typically, a list of directory : a :: b :: c :: file.ext)

 * \param I : 1 : OS separator (e.g. "\" on MS Windows, "/" on Linux), otherwise Scol separator ("/")

 * \return S : the filename

 */

int SCOL_gBasePathBuild (mmachine m)

{

    int mlist, mflag;

    int size = 0, i = 0;

    gchar **list;

    gchar *fn;

    mflag = MTOI (MMpull (m));

    mlist = MMget (m, 0);

    if (mlist == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    mlist = MTOP (mlist);

    while (mlist != NIL)

    {

        size++;

        mlist = MMfetch (m, mlist, 1)>>1;

    }

    list = g_new0 (gchar*, size + 2);

    mlist = MTOP (MMpull (m));

    for (; i < size; i++)

    {

        list[i] = MMstartstr (m, MTOP (MMfetch (m, mlist, 0)));

        mlist = MTOP (MMfetch (m, mlist, 1));

    }

    if (mflag == 1)

        fn = g_build_filenamev (list);

    else

        fn = g_build_pathv ("/", list);

    Mpushstrbloc (m, fn);

    g_free (list);

    g_free (fn);

    return 0;

}

/**

 * \brief _gBaseStringUTF8 : Converts a string in the current locale into a UTF-8 string or reverse.

 *

 * fun [S I] S

 *

 * \param S : any string

 * \param I : 1 from locale to UTF8, 0 from UTF-8 to current locale

 * \return : the new string

 */

int SCOL_gBaseStringUTF8 (mmachine m)

{

    int mstring, mflag;

    gchar *string;

    mflag = MMpull (m);

    mstring = MMpull (m);

    if (mstring == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    if (mflag)

        string = SCOLUTF8 (MMstartstr (m, MTOP (mstring)), -1);

    else

        string = UTF8SCOL (MMstartstr (m, MTOP (mstring)), -1);

    Mpushstrbloc (m, string);

    g_free (string);

    return 0;

}

/**

 * \brief _gbaseChecksumS : Computes the checksum of a string.

 *

 * fun [S I] S

 *

 * \param S : any string

 * \param I : the hashing algorithm to use : 0 -> MD5 (default), 1 -> SHA-1, 2 -> SHA-256

 * \return S : the checksum as an hexadecimal string.

 */

int SCOL_gbaseChecksumS (mmachine m)

{

    int mstring, mtype;

    GChecksumType type = G_CHECKSUM_MD5;

    gchar *string;

    mtype = MTOI (MMpull (m));

    mstring = MMpull (m);

    if (mstring == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    mstring = MTOP (mstring);

    if (mtype == 1)

        type = G_CHECKSUM_SHA1;

    else if (mtype == 2)

        type = G_CHECKSUM_SHA256;

    string = g_compute_checksum_for_string (type, MMstartstr (m, mstring), -1);

    Mpushstrbloc (m, string);

    g_free (string);

    return 0;

}

/**

 * \brief _gbaseChecksumP : Computes the checksum of a file.

 *

 * fun [P I] S

 *

 * \param S : any file (read referenced only)

 * \param I : the hashing algorithm to use : 0 -> MD5 (default), 1 -> SHA-1, 2 -> SHA-256

 * \return S : the checksum as an hexadecimal string.

 */

int SCOL_gbaseChecksumP (mmachine m)

{

    /* #define SCSP_MAX_SIZE G_MAXUINT-1 */ /* i'm stupid ! */

    #define SCSP_MAX_SIZE 1024*32   /* 32 ko / each loop */

    int mfile, mtype;

    guchar data[SCSP_MAX_SIZE];

    gsize size = 0;

    GChecksumType type = G_CHECKSUM_MD5;

    GChecksum *cs;

    const gchar *string;

    FILE *file;

    mtype = MTOI (MMpull (m));

    mfile = MMpull (m);

    if (mfile == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    mfile = MTOP (mfile);

    file = fopen (MMstartstr (m, mfile), "rb");

    if (file == NULL)

    {

        MMpush (m, NIL);

        return 0;

    }

    if (mtype == 1)

        type = G_CHECKSUM_SHA1;

    else if (mtype == 2)

        type = G_CHECKSUM_SHA256;

    cs = g_checksum_new (type);

    do

    {

        size = fread((void *) data, sizeof (guchar), SCSP_MAX_SIZE, file);

        g_checksum_update (cs, data, size);

    }

    while (size == SCSP_MAX_SIZE);

    fclose (file);

    string = g_checksum_get_string (cs);

    Mpushstrbloc (m, (char *) string);

    g_checksum_free (cs);

    return 0;

}

/**

 * \brief _gbaseSleep : Pauses the current thread for the given number of milliseconds.

 *

 * fun [I] I

 *

 * \param I : the number of milliseconds

 * \return I : 0 if success, nil if error

 */

int SCOL_gbaseSleep (mmachine m)

{

    int msleep;

    msleep = MTOI (MMpull (m));

    if (msleep <= 0)

    {

        MMpush (m, NIL);

        return 0;

    }

    g_usleep (1000*msleep);

    MMpush (m, ITOM (0));

    return 0;

}

/**

 * \brief _gbaseFileStat : it should not be used, at this time

 *

 * fun [P] [I I I I]

 *

 * \param P : a filename (read reference only)

 * \return [I I I I] : size, last access, last modification, last state changed

 */

int SCOL_gbaseFileStat (mmachine m)

{

    int mfile;

    int result;

    #if ((defined _WIN32) || (defined __WIN32__))

    GStatBuf *s = NULL;

    #else

    struct stat *s = NULL;

    #endif

    mfile = MMpull(m);

    if (mfile == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    mfile = MTOP (mfile);

    result = g_stat (MMstartstr (m, mfile), s);

    if (result != 0)

    {

        MMpush (m, NIL);

        return 0;

    }

    MMpush (m, ITOM (s->st_size));

    MMpush (m, ITOM (s->st_atime));

    MMpush (m, ITOM (s->st_mtime));

    MMpush (m, ITOM (s->st_ctime));

    MMpush (m, ITOM (4));

    MBdeftab (m);

    return 0;

}

/**

 * \brief _gbaseIsIp : Tests if a string is a form of an IPv4 or IPv6 address (like "123.210.012.231").

 * fun [S] I

 * \param S : any string

 * \return I : 1 if TRUE (the string is an IP address), 0 if FALSE

 */

int SCOL_gbaseIsIp (mmachine m)

{

    int ms;

    ms = MMpull (m);

    if (ms == NIL)

    {

        MMpush (m, NIL);

        return 0;

    }

    MMpush (m, ITOM (g_hostname_is_ip_address (MMstartstr (m, MTOP (ms)))));

    return 0;

}

/* API d?finitions : */

char* gbase_name[GBASE_PKG_NB]=

{

    "_gbaseUserName",

    "_gBaseHostName",

    "_gBaseDirCur",

    "_gBasePathAbsolute",

    "_gBasePathBase",

    "_gBasePathDir",

    "_gBasePathBuild",

    "_gBaseStringUTF8",

    "_gbaseChecksumS",

    "_gbaseChecksumP",

    "_gbaseSleep",

    "_gbaseFileStat",

    "_gbaseIsIp"

};

int (*gbase_fun[GBASE_PKG_NB])(mmachine m)=

{

    SCOL_gbaseUserName,

    SCOL_gBaseHostName,

    SCOL_gBaseDirCur,

    SCOL_gBasePathAbsolute,

    SCOL_gBasePathBase,

    SCOL_gBasePathDir,

    SCOL_gBasePathBuild,

    SCOL_gBaseStringUTF8,

    SCOL_gbaseChecksumS,

    SCOL_gbaseChecksumP,

    SCOL_gbaseSleep,

    SCOL_gbaseFileStat,

    SCOL_gbaseIsIp

};

int gbase_narg[GBASE_PKG_NB]=

{

    0,      /* SCOL_gbaseUserName */

    0,      /* SCOL_gBaseHostName */

    0,      /* SCOL_gBaseDirCur */

    1,      /* SCOL_gBasePathAbsolute */

    1,      /* SCOL_gBasePathBase */

    1,      /* SCOL_gBasePathDir */

    2,      /* SCOL_gBasePathBuild */

    2,       /* SCOL_gBaseStringUTF8 */

    2,       /* SCOL_gbaseChecksumS */

    2,       /* SCOL_gbaseChecksumP */

    1,       /* SCOL_gbaseSleep */

    1,       /* SCOL_gbaseFileStat */

    1       /* SCOL_gbaseIsIp */

};

char* gbase_type[GBASE_PKG_NB]=

{

    "fun [] S",                     /* SCOL_gbaseUserName */

    "fun [] S",                     /* SCOL_gBaseHostName */

    "fun [] S",                     /* SCOL_gBaseDirCur */

    "fun [S] I",                    /* SCOL_gBasePathAbsolute */

    "fun [S] S",                    /* SCOL_gBasePathBase */

    "fun [S] S",                    /* SCOL_gBasePathDir */

    "fun [[S r1] I] S",             /* SCOL_gBasePathBuild */

    "fun [S I] S",                  /* SCOL_gBaseStringUTF8 */

    "fun [S I] S",                  /* SCOL_gbaseChecksumS */

    "fun [P I] S",                  /* SCOL_gbaseChecksumS */

    "fun [I] I",                    /* SCOL_gbaseSleep */

    "fun [P] [I I I I]",            /* SCOL_gbaseFileStat */

    "fun [S] I"                    /* SCOL_gbaseIsIp */

};

int SCOLinitGbaseClass (mmachine m)

{

    int k;

    MMechostr (0, "SCOLinitGbaseClass : entering\n");

    k = PKhardpak (m, "GBaseEngine", GBASE_PKG_NB, gbase_name, gbase_fun, gbase_narg, gbase_type);

    return k;

}

/*

 * Load and free the regular expression library

 * Plateforms supported : MS Windows and GNU / Linux

 */

int GBaseRelease ()

{

    MMechostr (0, "\nGBASE library released !\n");

    return 0;

}

#if ((defined _WIN32) || (defined __WIN32__))

__declspec (dllexport) int SCOLloadGBASE (mmachine m, cbmachine w)

{

    int k = 0;

    ww = w;

    mm = m;

    MMechostr (MSKDEBUG, "\nGBASE library loading .... !\n");

    SCOLinitplugin (w);

    if ((k = SCOLinitGbaseClass (m))) return k;

    MMechostr(MSKDEBUG, "\nGBASE library loaded !\n");

    return k;

}

__declspec (dllexport) int SCOLfreeGBASE ()

{

    GBaseRelease ();

    return 0;

}

/* Version GNU / Linux */

#elif ((defined linux) || (defined __linux))

int SCOLloadGBASE (mmachine m)

{

    int k = 0;

    mm = m;

    MMechostr (MSKDEBUG, "\nGBASE library loading !\n");

    if ((k = SCOLinitGbaseClass (m))) return k;

    MMechostr (MSKDEBUG, "\nGBASE library loaded !\n");

    return k;

}

int SCOLfreeGBASE ()

{

    GBaseRelease ();

    return 0;

}

#else

#error no platform supported

#endif