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-rw-r--r--iconv/gconv.c17
-rw-r--r--iconv/gconv_conf.c4
-rw-r--r--iconv/gconv_dl.c12
-rw-r--r--iconv/gconv_int.h6
-rw-r--r--iconv/gconv_simple.c228
5 files changed, 256 insertions, 11 deletions
diff --git a/iconv/gconv.c b/iconv/gconv.c
index 71d87ae..f8b7c80 100644
--- a/iconv/gconv.c
+++ b/iconv/gconv.c
@@ -1,6 +1,6 @@
/* Convert characters in input buffer using conversion descriptor to
output buffer.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -34,19 +34,24 @@ __gconv (gconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf,
if (cd == (gconv_t) -1L)
return GCONV_ILLEGAL_DESCRIPTOR;
- cd->data[last_step].outbuf = *outbuf;
+ cd->data[last_step].outbuf = outbuf ? *outbuf : NULL;
cd->data[last_step].outbufavail = 0;
cd->data[last_step].outbufsize = *outbytesleft;
if (converted != NULL)
*converted = 0;
- result = (*cd->steps->fct) (cd->steps, cd->data, *inbuf, inbytesleft,
+ result = (*cd->steps->fct) (cd->steps, cd->data,
+ inbuf ? *inbuf : NULL, inbytesleft,
converted, inbuf == NULL || *inbuf == NULL);
- *inbuf += oldinbytes - *inbytesleft;
- *outbuf += cd->data[last_step].outbufavail;
- *outbytesleft -= cd->data[last_step].outbufavail;
+ if (inbuf != NULL && *inbuf != NULL)
+ *inbuf += oldinbytes - *inbytesleft;
+ if (outbuf != NULL && *outbuf != NULL)
+ {
+ *outbuf += cd->data[last_step].outbufavail;
+ *outbytesleft -= cd->data[last_step].outbufavail;
+ }
return result;
}
diff --git a/iconv/gconv_conf.c b/iconv/gconv_conf.c
index c448a16..7765efb 100644
--- a/iconv/gconv_conf.c
+++ b/iconv/gconv_conf.c
@@ -398,6 +398,10 @@ __gconv_read_conf (void)
elem = strtok_r (gconv_path, ":", &gconv_path);
while (elem != NULL)
{
+#ifndef MAXPATHLEN
+ /* We define a reasonable limit. */
+# define 4096
+#endif
char real_elem[MAXPATHLEN];
if (realpath (elem, real_elem) != NULL)
diff --git a/iconv/gconv_dl.c b/iconv/gconv_dl.c
index b11e156..9e80158 100644
--- a/iconv/gconv_dl.c
+++ b/iconv/gconv_dl.c
@@ -108,9 +108,9 @@ get_sym (void *a)
}
-static void *
+void *
internal_function
-find_func (void *handle, const char *name)
+__gconv_find_func (void *handle, const char *name)
{
struct get_sym_args args;
@@ -170,7 +170,7 @@ __gconv_find_shlib (const char *name)
{
if (dlerror_run (do_open, found) == 0)
{
- found->fct = find_func (found->handle, "gconv");
+ found->fct = __gconv_find_func (found->handle, "gconv");
if (found->fct == NULL)
{
/* Argh, no conversion function. There is something
@@ -180,8 +180,10 @@ __gconv_find_shlib (const char *name)
}
else
{
- found->init_fct = find_func (found->handle, "gconv_init");
- found->end_fct = find_func (found->handle, "gconv_end");
+ found->init_fct = __gconv_find_func (found->handle,
+ "gconv_init");
+ found->end_fct = __gconv_find_func (found->handle,
+ "gconv_end");
/* We have succeeded in loading the shared object. */
found->counter = 1;
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h
index 5e0723e..35ec31a 100644
--- a/iconv/gconv_int.h
+++ b/iconv/gconv_int.h
@@ -129,6 +129,10 @@ extern int __gconv_close_transform (struct gconv_step *__steps,
extern struct gconv_loaded_object *__gconv_find_shlib (const char *__name)
internal_function;
+/* Find function named NAME in shared object referenced by HANDLE. */
+void *__gconv_find_func (void *handle, const char *name)
+ internal_function;
+
/* Release shared object. If no further reference is available unload
the object. */
extern int __gconv_release_shlib (struct gconv_loaded_object *__handle)
@@ -149,6 +153,8 @@ extern void __gconv_get_builtin_trans (const char *__name,
int __do_flush)
__BUILTIN_TRANS (__gconv_transform_dummy);
+__BUILTIN_TRANS (__gconv_transform_ascii_ucs4);
+__BUILTIN_TRANS (__gconv_transform_ucs4_ascii);
__BUILTIN_TRANS (__gconv_transform_ucs4_utf8);
__BUILTIN_TRANS (__gconv_transform_utf8_ucs4);
__BUILTIN_TRANS (__gconv_transform_ucs2_ucs4);
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c
index 197a3d1..478c0dc 100644
--- a/iconv/gconv_simple.c
+++ b/iconv/gconv_simple.c
@@ -76,6 +76,234 @@ __gconv_transform_dummy (struct gconv_step *step, struct gconv_step_data *data,
}
+/* Convert from ISO 646-IRV to ISO 10646/UCS4. */
+int
+__gconv_transform_ascii_ucs4 (struct gconv_step *step,
+ struct gconv_step_data *data, const char *inbuf,
+ size_t *inlen, size_t *written, int do_flush)
+{
+ struct gconv_step *next_step = step + 1;
+ struct gconv_step_data *next_data = data + 1;
+ gconv_fct fct = next_step->fct;
+ size_t do_write;
+ int result;
+
+ /* If the function is called with no input this means we have to reset
+ to the initial state. The possibly partly converted input is
+ dropped. */
+ if (do_flush)
+ {
+ /* Clear the state. */
+ memset (data->statep, '\0', sizeof (mbstate_t));
+ do_write = 0;
+
+ /* Call the steps down the chain if there are any. */
+ if (data->is_last)
+ result = GCONV_OK;
+ else
+ {
+ struct gconv_step *next_step = step + 1;
+ struct gconv_step_data *next_data = data + 1;
+
+ result = (*fct) (next_step, next_data, NULL, 0, written, 1);
+
+ /* Clear output buffer. */
+ data->outbufavail = 0;
+ }
+ }
+ else
+ {
+ int save_errno = errno;
+ do_write = 0;
+
+ result = GCONV_OK;
+ do
+ {
+ const unsigned char *newinbuf = inbuf;
+ size_t actually = 0;
+ size_t cnt = 0;
+
+ while (data->outbufavail + sizeof (wchar_t) <= data->outbufsize
+ && cnt < *inlen)
+ {
+ if (*newinbuf > '\x7f')
+ {
+ /* This is no correct ANSI_X3.4-1968 character. */
+ result = GCONV_ILLEGAL_INPUT;
+ break;
+ }
+
+ /* It's an one byte sequence. */
+ *(wchar_t *) &data->outbuf[data->outbufavail++]
+ = (wchar_t) *newinbuf;
+ ++actually;
+
+ ++newinbuf;
+ ++cnt;
+ }
+
+ /* Remember how much we converted. */
+ do_write += cnt * sizeof (wchar_t);
+ *inlen -= cnt;
+
+ /* Check whether an illegal character appeared. */
+ if (result != GCONV_OK)
+ break;
+
+ if (data->is_last)
+ {
+ /* This is the last step. */
+ result = (*inlen == 0 ? GCONV_EMPTY_INPUT : GCONV_FULL_OUTPUT);
+ break;
+ }
+
+ /* Status so far. */
+ result = GCONV_EMPTY_INPUT;
+
+ if (data->outbufavail > 0)
+ {
+ /* Call the functions below in the chain. */
+ size_t newavail = data->outbufavail;
+
+ result = (*fct) (next_step, next_data, data->outbuf, &newavail,
+ written, 0);
+
+ /* Correct the output buffer. */
+ if (newavail != data->outbufavail && newavail > 0)
+ {
+ memmove (data->outbuf,
+ &data->outbuf[data->outbufavail - newavail],
+ newavail);
+ data->outbufavail = newavail;
+ }
+ }
+ }
+ while (*inlen > 0 && result == GCONV_EMPTY_INPUT);
+
+ __set_errno (save_errno);
+ }
+
+ if (written != NULL && data->is_last)
+ *written = do_write / sizeof (wchar_t);
+
+ return result;
+}
+
+
+/* Convert from ISO 10646/UCS to ISO 646-IRV. */
+int
+__gconv_transform_ucs4_ascii (struct gconv_step *step,
+ struct gconv_step_data *data, const char *inbuf,
+ size_t *inlen, size_t *written, int do_flush)
+{
+ struct gconv_step *next_step = step + 1;
+ struct gconv_step_data *next_data = data + 1;
+ gconv_fct fct = next_step->fct;
+ size_t do_write;
+ int result;
+
+ /* If the function is called with no input this means we have to reset
+ to the initial state. The possibly partly converted input is
+ dropped. */
+ if (do_flush)
+ {
+ /* Clear the state. */
+ memset (data->statep, '\0', sizeof (mbstate_t));
+ do_write = 0;
+
+ /* Call the steps down the chain if there are any. */
+ if (data->is_last)
+ result = GCONV_OK;
+ else
+ {
+ struct gconv_step *next_step = step + 1;
+ struct gconv_step_data *next_data = data + 1;
+
+ result = (*fct) (next_step, next_data, NULL, 0, written, 1);
+
+ /* Clear output buffer. */
+ data->outbufavail = 0;
+ }
+ }
+ else
+ {
+ int save_errno = errno;
+ do_write = 0;
+
+ result = GCONV_OK;
+ do
+ {
+ const wchar_t *newinbuf = (const wchar_t *) inbuf;
+ size_t actually = 0;
+ size_t cnt = 0;
+
+ while (data->outbufavail < data->outbufsize
+ && cnt + sizeof (wchar_t) <= *inlen)
+ {
+ if (*newinbuf < L'\0' || *newinbuf > L'\x7f')
+ {
+ /* This is no correct ANSI_X3.4-1968 character. */
+ result = GCONV_ILLEGAL_INPUT;
+ break;
+ }
+
+ /* It's an one byte sequence. */
+ data->outbuf[data->outbufavail++] = (char) *newinbuf;
+ ++actually;
+
+ ++newinbuf;
+ ++cnt;
+ }
+
+ /* Remember how much we converted. */
+ do_write += cnt;
+ *inlen -= cnt * sizeof (wchar_t);
+
+ /* Check whether an illegal character appeared. */
+ if (result != GCONV_OK)
+ break;
+
+ if (data->is_last)
+ {
+ /* This is the last step. */
+ result = (*inlen < sizeof (wchar_t)
+ ? GCONV_EMPTY_INPUT : GCONV_FULL_OUTPUT);
+ break;
+ }
+
+ /* Status so far. */
+ result = GCONV_EMPTY_INPUT;
+
+ if (data->outbufavail > 0)
+ {
+ /* Call the functions below in the chain. */
+ size_t newavail = data->outbufavail;
+
+ result = (*fct) (next_step, next_data, data->outbuf, &newavail,
+ written, 0);
+
+ /* Correct the output buffer. */
+ if (newavail != data->outbufavail && newavail > 0)
+ {
+ memmove (data->outbuf,
+ &data->outbuf[data->outbufavail - newavail],
+ newavail);
+ data->outbufavail = newavail;
+ }
+ }
+ }
+ while (*inlen > 0 && result == GCONV_EMPTY_INPUT);
+
+ __set_errno (save_errno);
+ }
+
+ if (written != NULL && data->is_last)
+ *written = do_write;
+
+ return result;
+}
+
+
int
__gconv_transform_ucs4_utf8 (struct gconv_step *step,
struct gconv_step_data *data, const char *inbuf,
generated by cgit v1.1 at 2024-12-29 15:54:53 +0000