file_input_file.c

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/* input function */

#include "fb.h"

FBCALL int fb_FileInput( int fnum )
{
    FB_INPUTCTX *ctx;
    FB_FILE *handle = NULL;

        FB_LOCK();

    handle = FB_FILE_TO_HANDLE(fnum);
    if( !FB_HANDLE_USED(handle) )
    {
        FB_UNLOCK();
        return fb_ErrorSetNum( FB_RTERROR_ILLEGALFUNCTIONCALL );
    }

    ctx = FB_TLSGETCTX( INPUT );

    ctx->handle = handle;
    ctx->status = 0;
    fb_StrDelete( &ctx->str );
    ctx->index  = 0;

        FB_UNLOCK();

        return fb_ErrorSetNum( FB_RTERROR_OK );
}