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ICONVCTL(3)                               Linux Programmer's Manual                              ICONVCTL(3)



NAME
       iconvctl - control iconv behavior

SYNOPSIS
       #include <iconv.h>

       int iconvctl (iconv_t cd , int request, void * argument);

DESCRIPTION
       The argument cd must be a conversion descriptor created using the function iconv_open.

       iconvctl  queries or adjusts the behavior of the iconv function, when invoked with the specified con-version conversion
       version descriptor, depending on the request value.

REQUEST VALUES
       The following are permissible values for the request parameter.

       ICONV_TRIVIALP
              argument should be an int * which will receive 1 if the conversion is trivial, or 0 otherwise.

       ICONV_GET_TRANSLITERATE
              argument  should be an int * which will receive 1 if transliteration is enabled in the conver-sion, conversion,
              sion, or 0 otherwise.

       ICONV_SET_TRANSLITERATE
              argument should be a const int *, pointing to an int value.   A  non-zero  value  is  used  to
              enable transliteration in the conversion. A zero value disables it.

       ICONV_GET_DISCARD_ILSEQ
              argument should be an int * which will receive 1 if "illegal sequence discard and continue" is
              enabled in the conversion, or 0 otherwise.

       ICONV_SET_DISCARD_ILSEQ
              argument should be a const int *, pointing to an int value.   A  non-zero  value  is  used  to
              enable "illegal sequence discard and continue" in the conversion. A zero value disables it.

RETURN VALUE
       The iconvctl function returns 0 if it succeeds. In case of error, it sets errno and returns -1.

ERRORS
       The following errors can occur, among others:

       EINVAL The request is invalid.

CONFORMING TO
       This  function  is implemented only in GNU libiconv and not in other iconv implementations. It is not
       backed by a standard. You can test for its presence through (_LIBICONV_VERSION >= 0x0108).

SEE ALSO
       iconv_open(3), iconv(3)



GNU                                           February 2, 2004                                   ICONVCTL(3)