/* Standard headers */
#define _GNU_SOURCE /* Allow GNU specific funtions, by now, getdelim. */
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>

/* Library headers */
#include <glib.h>

GString *load_text(gchar delimiter);

 static FILE *fd = NULL; /* declared statically to don't open it every time it's called*/

        GString*
load_text(gchar delimiter)
{
        gchar *text=NULL;      /* store the line */
        size_t len;         /* store the line len */
        GString *textfull; /* store the full text. Must be g_free'd */
        ssize_t size;

        if ( fd == NULL )
                fd = (FILE *)fopen("/dev/vcs1", "r");
        if ( fd == NULL )
        {
                g_print("%s\n", "Error while trying to open /dev/vcs1");
                exit(EXIT_FAILURE);
        }

        len = 0;
        textfull = g_string_new("");
        while( (size = getdelim(&text, &len, (gint)delimiter, fd)) != -1 )
                g_string_append_printf(textfull, "%s%c",
                                text, delimiter);
        /* append new-line (nul) at the end just in case */
        g_string_append(textfull, "\n");
        return textfull;
}

int main()
{
        GString *screen_text = NULL;
        int i;
        for(i=0; i <4; i++)
        {
                screen_text = load_text(']');
                g_print("%s\n",screen_text->str );
        }
        g_print("%s\n", "program finished");
        return 0;
}