diff options
Diffstat (limited to 'newlib/libc/sys/linux/iconv/gconv.c')
-rw-r--r-- | newlib/libc/sys/linux/iconv/gconv.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/iconv/gconv.c b/newlib/libc/sys/linux/iconv/gconv.c new file mode 100644 index 000000000..b413e26c5 --- /dev/null +++ b/newlib/libc/sys/linux/iconv/gconv.c @@ -0,0 +1,73 @@ +/* Convert characters in input buffer using conversion descriptor to + output buffer. + Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library 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 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <assert.h> +#include <gconv_int.h> +#include <sys/param.h> +#include <dlfcn.h> +#include <stddef.h> + +int +internal_function +__gconv (__gconv_t cd, const unsigned char **inbuf, + const unsigned char *inbufend, unsigned char **outbuf, + unsigned char *outbufend, size_t *irreversible) +{ + size_t last_step; + int result; + + if (cd == (__gconv_t) -1L) + return __GCONV_ILLEGAL_DESCRIPTOR; + + last_step = cd->__nsteps - 1; + + assert (irreversible != NULL); + *irreversible = 0; + + cd->__data[last_step].__outbuf = outbuf != NULL ? *outbuf : NULL; + cd->__data[last_step].__outbufend = outbufend; + + if (inbuf == NULL || *inbuf == NULL) + /* We just flush. */ + result = cd->__steps->__fct (cd->__steps, cd->__data, NULL, NULL, NULL, + irreversible, + cd->__data[last_step].__outbuf == NULL ? 2 : 1, 0); + else + { + const unsigned char *last_start; + + assert (outbuf != NULL && *outbuf != NULL); + + do + { + last_start = *inbuf; + result = cd->__steps->__fct (cd->__steps, cd->__data, inbuf, inbufend, + NULL, irreversible, 0, 0); + } + while (result == __GCONV_EMPTY_INPUT && last_start != *inbuf + && *inbuf + cd->__steps->__min_needed_from <= inbufend); + } + + if (outbuf != NULL && *outbuf != NULL) + *outbuf = cd->__data[last_step].__outbuf; + + return result; +} |