dev_file_encod_read.c

Go to the documentation of this file.

/* UTF-encoded input for file devices */

#include "fb.h"

int fb_DevFileReadEncod( FB_FILE *handle, void *dst, size_t *max_chars )
{
    FILE *fp;
    size_t chars;

    FB_LOCK();

    chars = *max_chars;

    fp = (FILE *)handle->opaque;
    if( fp == stdout || fp == stderr )
        fp = stdin;

        if( fp == NULL )
        {
                FB_UNLOCK();
                return fb_ErrorSetNum( FB_RTERROR_ILLEGALFUNCTIONCALL );
        }

        /* do read */
        chars = fb_hFileRead_UTFToChar( fp, handle->encod, dst, chars );

        /* fill with nulls if at eof */
        if( chars != *max_chars )
        memset( ((char *)dst) + chars, 0, *max_chars - chars );

    *max_chars = chars;

        FB_UNLOCK();

        return fb_ErrorSetNum( FB_RTERROR_OK );
}