e34b0f2902
1997-11-24 03:01 Ulrich Drepper <drepper@cygnus.com> * elf/dl-support.c: Call __libc_init_secure to make sure __libc_enable_secure is defined early. * sysdeps/generic/enbl-secure.c: Change function name to __libc_init_secure and make it global instead of a constructor. * iconv/gconv.c: Fix lots of bugs. * iconv/gconv.h: Likewise. * iconv/gconv_builtin.h: Likewise. * iconv/gconv_close.c: Likewise. * iconv/gconv_conf.c: Likewise. * iconv/gconv_db.c: Likewise. * iconv/gconv_dl.c: Likewise. * iconv/gconv_open.c: Likewise. * iconv/gconv_simple.c: Likewise. * iconv/iconv.c: Likewise. * iconv/iconv_close.c: Likewise. * iconv/iconv_open.c: Likewise. * wcsmbs/Makefile (routines): Add wmemrtowcs and wmemrtombs. * wcsmbs/wchar.h: Add prototypes for wmemrtowcs and wmemrtombs. * wcsmbs/wmemrtombs.c: New file. * wcsmbs/wmemrtowcs.c: New file.
124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/* Find matching transformation algorithms and initialize steps.
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Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <gconv.h>
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#include <stdlib.h>
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int
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__gconv_open (const char *toset, const char *fromset, gconv_t *handle)
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{
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struct gconv_step *steps;
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size_t nsteps;
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gconv_t result = NULL;
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size_t cnt = 0;
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int res;
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res = __gconv_find_transform (toset, fromset, &steps, &nsteps);
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if (res == GCONV_OK)
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{
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/* Allocate room for handle. */
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result = (gconv_t) malloc (sizeof (struct gconv_info));
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if (result == NULL)
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res = GCONV_NOMEM;
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else
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{
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/* Remember the list of steps. */
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result->steps = steps;
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result->nsteps = nsteps;
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/* Allocate array for the step data. */
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result->data = (struct gconv_step_data *)
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calloc (nsteps, sizeof (struct gconv_step_data));
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if (result->data == NULL)
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res = GCONV_NOMEM;
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else
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{
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/* Call all initialization functions for the transformation
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step implemenations. */
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struct gconv_step_data *data = result->data;
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for (cnt = 0; cnt < nsteps; ++cnt)
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{
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/* If this is the last step we must not allocate an output
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buffer. Signal this to the initializer. */
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data[cnt].is_last = cnt == nsteps - 1;
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if (steps[cnt].init_fct != NULL)
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{
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res = (steps[cnt].init_fct) (&steps[cnt], &data[cnt]);
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if (res != GCONV_OK)
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break;
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}
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if (!data[cnt].is_last && data[cnt].outbuf == NULL)
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{
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data[cnt].outbufsize = GCONV_DEFAULT_BUFSIZE;
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data[cnt].outbuf =
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(char *) malloc (data[cnt].outbufsize);
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if (data[cnt].outbuf == NULL)
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{
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res = GCONV_NOMEM;
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break;
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}
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data[cnt].outbufavail = 0;
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}
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}
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}
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}
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}
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if (res != GCONV_OK)
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{
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/* Something went wrong. Free all the resources. */
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int serrno = errno;
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if (result != NULL)
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{
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if (result->data != NULL)
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{
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while (cnt-- > 0)
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if (steps[cnt].end_fct != NULL)
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(*steps[cnt].end_fct) (&result->data[cnt]);
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else
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{
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free (result->data[cnt].outbuf);
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if (result->data[cnt].data != NULL)
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free (result->data[cnt].data);
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}
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free (result->data);
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}
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free (result);
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result = NULL;
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}
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__gconv_close_transform (steps, nsteps);
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__set_errno (serrno);
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}
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*handle = result;
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return res;
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}
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