+2019-05-20 Florian Weimer <fweimer@redhat.com>
+
+ [BZ #24588]
+ libio: Remove codecvt vtable.
+ * libio/fileops.c ( _IO_new_file_fopen): Do not copy
+ __libio_codecvt.
+ * libio/iofgetpos.c (_IO_new_fgetpos): Call
+ __libio_codecvt_encoding.
+ * libio/iofgetpos64.c (_IO_new_fgetpos): Likewise.
+ * libio/iofsetpos.c (_IO_new_fsetpos): Likewise.
+ * libio/iofsetpos64.c (_IO_new_fsetpos): Likewise.
+ * libio/iofwide.c (__libio_codecvt): Remove variable.
+ (_IO_fwide): Do not copy __libio_codecvt.
+ (__libio_codecvt_out): Rename from do_out and export.
+ (do_unshift): Remove function.
+ (__libio_codecvt_in): Rename from do_in and export.
+ (__libio_codecvt_encoding): Rename from do_encoding and export.
+ (do_always_noconv): Remove function.
+ (__libio_codecvt_length): Rename from do_length and export.
+ (do_max_length): Remove function.
+ * libio/libio.h (enum __codecvt_result): Remove definition; moved
+ to libioP.h.
+ (struct _IO_codecvt): Remove fields __codecvt_destr,
+ __codecvt_do_out, __codecvt_do_unshift, __codecvt_do_in,
+ __codecvt_do_encoding, __codecvt_do_always_noconv,
+ __codecvt_do_length, __codecvt_do_max_length.
+ * libio/libioP.h (enum __codecvt_result): Define; moved from
+ libio.h.
+ (__libio_codecvt_out, __libio_codecvt_in)
+ (__libio_codecvt_encoding, __libio_codecvt_length): Declare
+ functions.
+ * libio/wfileops.c (_IO_wdo_write): Call __libio_codecvt_out.
+ (_IO_wfile_underflow): Call __libio_codecvt_in.
+ (_IO_wfile_underflow): Likewise.
+ (_IO_wfile_underflow_mmap): Likewise.
+ (_IO_wfile_sync): Call __libio_codecvt_encoding,
+ __libio_codecvt_length.
+ (adjust_wide_data): Call __libio_codecvt_encoding,
+ __libio_codecvt_in.
+ (do_ftell_wide): Call __libio_codecvt_length, __libio_codecvt_out.
+ (_IO_wfile_seekoff): Call __libio_codecvt_encoding,
+ __libio_codecvt_length.
+
2019-05-20 Florian Weimer <fweimer@redhat.com>
* support/support.h (support_sbindir_prefix): Declare.
cc = fp->_codecvt = &fp->_wide_data->_codecvt;
- /* The functions are always the same. */
- *cc = __libio_codecvt;
-
cc->__cd_in.__cd.__nsteps = fcts.towc_nsteps;
cc->__cd_in.__cd.__steps = fcts.towc;
else
{
posp->__pos = pos;
- if (fp->_mode > 0
- && (*fp->_codecvt->__codecvt_do_encoding) (fp->_codecvt) < 0)
+ if (fp->_mode > 0 && __libio_codecvt_encoding (fp->_codecvt) < 0)
/* This is a stateful encoding, safe the state. */
posp->__state = fp->_wide_data->_IO_state;
}
else
{
posp->__pos = pos;
- if (fp->_mode > 0
- && (*fp->_codecvt->__codecvt_do_encoding) (fp->_codecvt) < 0)
+ if (fp->_mode > 0 && __libio_codecvt_encoding (fp->_codecvt) < 0)
/* This is a stateful encoding, safe the state. */
posp->__state = fp->_wide_data->_IO_state;
}
else
{
result = 0;
- if (fp->_mode > 0
- && (*fp->_codecvt->__codecvt_do_encoding) (fp->_codecvt) < 0)
+ if (fp->_mode > 0 && __libio_codecvt_encoding (fp->_codecvt) < 0)
/* This is a stateful encoding, restore the state. */
fp->_wide_data->_IO_state = posp->__state;
}
else
{
result = 0;
- if (fp->_mode > 0
- && (*fp->_codecvt->__codecvt_do_encoding) (fp->_codecvt) < 0)
+ if (fp->_mode > 0 && __libio_codecvt_encoding (fp->_codecvt) < 0)
/* This is a stateful encoding, safe the state. */
fp->_wide_data->_IO_state = posp->__state;
}
#include <sysdep.h>
-/* Prototypes of libio's codecvt functions. */
-static enum __codecvt_result do_out (struct _IO_codecvt *codecvt,
- __mbstate_t *statep,
- const wchar_t *from_start,
- const wchar_t *from_end,
- const wchar_t **from_stop, char *to_start,
- char *to_end, char **to_stop);
-static enum __codecvt_result do_unshift (struct _IO_codecvt *codecvt,
- __mbstate_t *statep, char *to_start,
- char *to_end, char **to_stop);
-static enum __codecvt_result do_in (struct _IO_codecvt *codecvt,
- __mbstate_t *statep,
- const char *from_start,
- const char *from_end,
- const char **from_stop, wchar_t *to_start,
- wchar_t *to_end, wchar_t **to_stop);
-static int do_encoding (struct _IO_codecvt *codecvt);
-static int do_length (struct _IO_codecvt *codecvt, __mbstate_t *statep,
- const char *from_start,
- const char *from_end, size_t max);
-static int do_max_length (struct _IO_codecvt *codecvt);
-static int do_always_noconv (struct _IO_codecvt *codecvt);
-
-
-/* The functions used in `codecvt' for libio are always the same. */
-const struct _IO_codecvt __libio_codecvt =
-{
- .__codecvt_destr = NULL, /* Destructor, never used. */
- .__codecvt_do_out = do_out,
- .__codecvt_do_unshift = do_unshift,
- .__codecvt_do_in = do_in,
- .__codecvt_do_encoding = do_encoding,
- .__codecvt_do_always_noconv = do_always_noconv,
- .__codecvt_do_length = do_length,
- .__codecvt_do_max_length = do_max_length
-};
-
-
/* Return orientation of stream. If mode is nonzero try to change
the orientation first. */
#undef _IO_fwide
assert (fcts.towc_nsteps == 1);
assert (fcts.tomb_nsteps == 1);
- /* The functions are always the same. */
- *cc = __libio_codecvt;
-
cc->__cd_in.__cd.__nsteps = fcts.towc_nsteps;
cc->__cd_in.__cd.__steps = fcts.towc;
}
-static enum __codecvt_result
-do_out (struct _IO_codecvt *codecvt, __mbstate_t *statep,
- const wchar_t *from_start, const wchar_t *from_end,
- const wchar_t **from_stop, char *to_start, char *to_end,
- char **to_stop)
+enum __codecvt_result
+__libio_codecvt_out (struct _IO_codecvt *codecvt, __mbstate_t *statep,
+ const wchar_t *from_start, const wchar_t *from_end,
+ const wchar_t **from_stop, char *to_start, char *to_end,
+ char **to_stop)
{
enum __codecvt_result result;
}
-static enum __codecvt_result
-do_unshift (struct _IO_codecvt *codecvt, __mbstate_t *statep,
- char *to_start, char *to_end, char **to_stop)
-{
- enum __codecvt_result result;
-
- struct __gconv_step *gs = codecvt->__cd_out.__cd.__steps;
- int status;
- size_t dummy;
-
- codecvt->__cd_out.__cd.__data[0].__outbuf = (unsigned char *) to_start;
- codecvt->__cd_out.__cd.__data[0].__outbufend = (unsigned char *) to_end;
- codecvt->__cd_out.__cd.__data[0].__statep = statep;
-
- __gconv_fct fct = gs->__fct;
-#ifdef PTR_DEMANGLE
- if (gs->__shlib_handle != NULL)
- PTR_DEMANGLE (fct);
-#endif
-
- status = DL_CALL_FCT (fct,
- (gs, codecvt->__cd_out.__cd.__data, NULL, NULL,
- NULL, &dummy, 1, 0));
-
- *to_stop = (char *) codecvt->__cd_out.__cd.__data[0].__outbuf;
-
- switch (status)
- {
- case __GCONV_OK:
- case __GCONV_EMPTY_INPUT:
- result = __codecvt_ok;
- break;
-
- case __GCONV_FULL_OUTPUT:
- case __GCONV_INCOMPLETE_INPUT:
- result = __codecvt_partial;
- break;
-
- default:
- result = __codecvt_error;
- break;
- }
-
- return result;
-}
-
-
-static enum __codecvt_result
-do_in (struct _IO_codecvt *codecvt, __mbstate_t *statep,
- const char *from_start, const char *from_end, const char **from_stop,
- wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop)
+enum __codecvt_result
+__libio_codecvt_in (struct _IO_codecvt *codecvt, __mbstate_t *statep,
+ const char *from_start, const char *from_end,
+ const char **from_stop,
+ wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop)
{
enum __codecvt_result result;
}
-static int
-do_encoding (struct _IO_codecvt *codecvt)
+int
+__libio_codecvt_encoding (struct _IO_codecvt *codecvt)
{
/* See whether the encoding is stateful. */
if (codecvt->__cd_in.__cd.__steps[0].__stateful)
}
-static int
-do_always_noconv (struct _IO_codecvt *codecvt)
-{
- return 0;
-}
-
-
-static int
-do_length (struct _IO_codecvt *codecvt, __mbstate_t *statep,
- const char *from_start, const char *from_end, size_t max)
+int
+__libio_codecvt_length (struct _IO_codecvt *codecvt, __mbstate_t *statep,
+ const char *from_start, const char *from_end,
+ size_t max)
{
int result;
const unsigned char *cp = (const unsigned char *) from_start;
return result;
}
-
-
-static int
-do_max_length (struct _IO_codecvt *codecvt)
-{
- return codecvt->__cd_in.__cd.__steps[0].__max_needed_from;
-}
int _pos;
};
-/* This is the structure from the libstdc++ codecvt class. */
-enum __codecvt_result
-{
- __codecvt_ok,
- __codecvt_partial,
- __codecvt_error,
- __codecvt_noconv
-};
-
-/* The order of the elements in the following struct must match the order
- of the virtual functions in the libstdc++ codecvt class. */
struct _IO_codecvt
{
- void (*__codecvt_destr) (struct _IO_codecvt *);
- enum __codecvt_result (*__codecvt_do_out) (struct _IO_codecvt *,
- __mbstate_t *,
- const wchar_t *,
- const wchar_t *,
- const wchar_t **, char *,
- char *, char **);
- enum __codecvt_result (*__codecvt_do_unshift) (struct _IO_codecvt *,
- __mbstate_t *, char *,
- char *, char **);
- enum __codecvt_result (*__codecvt_do_in) (struct _IO_codecvt *,
- __mbstate_t *,
- const char *, const char *,
- const char **, wchar_t *,
- wchar_t *, wchar_t **);
- int (*__codecvt_do_encoding) (struct _IO_codecvt *);
- int (*__codecvt_do_always_noconv) (struct _IO_codecvt *);
- int (*__codecvt_do_length) (struct _IO_codecvt *, __mbstate_t *,
- const char *, const char *, size_t);
- int (*__codecvt_do_max_length) (struct _IO_codecvt *);
-
_IO_iconv_t __cd_in;
_IO_iconv_t __cd_out;
};
extern const struct _IO_jump_t _IO_old_proc_jumps attribute_hidden;
extern const struct _IO_jump_t _IO_str_jumps attribute_hidden;
extern const struct _IO_jump_t _IO_wstr_jumps attribute_hidden;
-extern const struct _IO_codecvt __libio_codecvt attribute_hidden;
extern int _IO_do_write (FILE *, const char *, size_t);
libc_hidden_proto (_IO_do_write)
extern int _IO_new_do_write (FILE *, const char *, size_t);
return vtable;
}
+/* Character set conversion. */
+
+enum __codecvt_result
+{
+ __codecvt_ok,
+ __codecvt_partial,
+ __codecvt_error,
+ __codecvt_noconv
+};
+
+enum __codecvt_result __libio_codecvt_out (struct _IO_codecvt *,
+ __mbstate_t *,
+ const wchar_t *,
+ const wchar_t *,
+ const wchar_t **, char *,
+ char *, char **)
+ attribute_hidden;
+enum __codecvt_result __libio_codecvt_in (struct _IO_codecvt *,
+ __mbstate_t *,
+ const char *, const char *,
+ const char **, wchar_t *,
+ wchar_t *, wchar_t **)
+ attribute_hidden;
+int __libio_codecvt_encoding (struct _IO_codecvt *) attribute_hidden;
+int __libio_codecvt_length (struct _IO_codecvt *, __mbstate_t *,
+ const char *, const char *, size_t)
+ attribute_hidden;
+
#endif /* libioP.h. */
}
/* Now convert from the internal format into the external buffer. */
- result = (*cc->__codecvt_do_out) (cc, &fp->_wide_data->_IO_state,
- data, data + to_do, &new_data,
- write_ptr,
- buf_end,
- &write_ptr);
+ result = __libio_codecvt_out (cc, &fp->_wide_data->_IO_state,
+ data, data + to_do, &new_data,
+ write_ptr,
+ buf_end,
+ &write_ptr);
/* Write out what we produced so far. */
if (_IO_new_do_write (fp, write_base, write_ptr - write_base) == EOF)
fp->_wide_data->_IO_last_state = fp->_wide_data->_IO_state;
fp->_wide_data->_IO_read_base = fp->_wide_data->_IO_read_ptr =
fp->_wide_data->_IO_buf_base;
- status = (*cd->__codecvt_do_in) (cd, &fp->_wide_data->_IO_state,
- fp->_IO_read_ptr, fp->_IO_read_end,
- &read_stop,
- fp->_wide_data->_IO_read_ptr,
- fp->_wide_data->_IO_buf_end,
- &fp->_wide_data->_IO_read_end);
+ status = __libio_codecvt_in (cd, &fp->_wide_data->_IO_state,
+ fp->_IO_read_ptr, fp->_IO_read_end,
+ &read_stop,
+ fp->_wide_data->_IO_read_ptr,
+ fp->_wide_data->_IO_buf_end,
+ &fp->_wide_data->_IO_read_end);
fp->_IO_read_base = fp->_IO_read_ptr;
fp->_IO_read_ptr = (char *) read_stop;
naccbuf += to_copy;
from = accbuf;
}
- status = (*cd->__codecvt_do_in) (cd, &fp->_wide_data->_IO_state,
- from, to, &read_ptr_copy,
- fp->_wide_data->_IO_read_end,
- fp->_wide_data->_IO_buf_end,
- &fp->_wide_data->_IO_read_end);
+ status = __libio_codecvt_in (cd, &fp->_wide_data->_IO_state,
+ from, to, &read_ptr_copy,
+ fp->_wide_data->_IO_read_end,
+ fp->_wide_data->_IO_buf_end,
+ &fp->_wide_data->_IO_read_end);
if (__glibc_unlikely (naccbuf != 0))
fp->_IO_read_ptr += MAX (0, read_ptr_copy - &accbuf[naccbuf - to_copy]);
fp->_wide_data->_IO_last_state = fp->_wide_data->_IO_state;
fp->_wide_data->_IO_read_base = fp->_wide_data->_IO_read_ptr =
fp->_wide_data->_IO_buf_base;
- (*cd->__codecvt_do_in) (cd, &fp->_wide_data->_IO_state,
- fp->_IO_read_ptr, fp->_IO_read_end,
- &read_stop,
- fp->_wide_data->_IO_read_ptr,
- fp->_wide_data->_IO_buf_end,
- &fp->_wide_data->_IO_read_end);
+ __libio_codecvt_in (cd, &fp->_wide_data->_IO_state,
+ fp->_IO_read_ptr, fp->_IO_read_end,
+ &read_stop,
+ fp->_wide_data->_IO_read_ptr,
+ fp->_wide_data->_IO_buf_end,
+ &fp->_wide_data->_IO_read_end);
fp->_IO_read_ptr = (char *) read_stop;
struct _IO_codecvt *cv = fp->_codecvt;
off64_t new_pos;
- int clen = (*cv->__codecvt_do_encoding) (cv);
+ int clen = __libio_codecvt_encoding (cv);
if (clen > 0)
/* It is easy, a fixed number of input bytes are used for each
size_t wnread = (fp->_wide_data->_IO_read_ptr
- fp->_wide_data->_IO_read_base);
fp->_wide_data->_IO_state = fp->_wide_data->_IO_last_state;
- nread = (*cv->__codecvt_do_length) (cv, &fp->_wide_data->_IO_state,
- fp->_IO_read_base,
- fp->_IO_read_end, wnread);
+ nread = __libio_codecvt_length (cv, &fp->_wide_data->_IO_state,
+ fp->_IO_read_base,
+ fp->_IO_read_end, wnread);
fp->_IO_read_ptr = fp->_IO_read_base + nread;
delta = -(fp->_IO_read_end - fp->_IO_read_base - nread);
}
{
struct _IO_codecvt *cv = fp->_codecvt;
- int clen = (*cv->__codecvt_do_encoding) (cv);
+ int clen = __libio_codecvt_encoding (cv);
/* Take the easy way out for constant length encodings if we don't need to
convert. */
{
fp->_wide_data->_IO_last_state = fp->_wide_data->_IO_state;
- status = (*cv->__codecvt_do_in) (cv, &fp->_wide_data->_IO_state,
- fp->_IO_read_base, fp->_IO_read_ptr,
- &read_stop,
- fp->_wide_data->_IO_read_base,
- fp->_wide_data->_IO_buf_end,
- &fp->_wide_data->_IO_read_end);
+ status = __libio_codecvt_in (cv, &fp->_wide_data->_IO_state,
+ fp->_IO_read_base, fp->_IO_read_ptr,
+ &read_stop,
+ fp->_wide_data->_IO_read_base,
+ fp->_wide_data->_IO_buf_end,
+ &fp->_wide_data->_IO_read_end);
/* Should we return EILSEQ? */
if (__glibc_unlikely (status == __codecvt_error))
}
struct _IO_codecvt *cv = fp->_codecvt;
- int clen = (*cv->__codecvt_do_encoding) (cv);
+ int clen = __libio_codecvt_encoding (cv);
if (!unflushed_writes)
{
size_t delta = wide_read_ptr - wide_read_base;
__mbstate_t state = fp->_wide_data->_IO_last_state;
- nread = (*cv->__codecvt_do_length) (cv, &state,
- fp->_IO_read_base,
- fp->_IO_read_end, delta);
+ nread = __libio_codecvt_length (cv, &state,
+ fp->_IO_read_base,
+ fp->_IO_read_end, delta);
offset -= fp->_IO_read_end - fp->_IO_read_base - nread;
}
}
enum __codecvt_result status;
__mbstate_t state = fp->_wide_data->_IO_last_state;
- status = (*cv->__codecvt_do_out) (cv, &state,
- in, in + delta, &in,
- out, out + outsize, &outstop);
+ status = __libio_codecvt_out (cv, &state, in, in + delta, &in,
+ out, out + outsize, &outstop);
/* We don't check for __codecvt_partial because it can be
returned on one of two conditions: either the output
find out which position in the external buffer corresponds to
the current position in the internal buffer. */
cv = fp->_codecvt;
- clen = (*cv->__codecvt_do_encoding) (cv);
+ clen = __libio_codecvt_encoding (cv);
if (mode != 0 || !was_writing)
{
delta = (fp->_wide_data->_IO_read_ptr
- fp->_wide_data->_IO_read_base);
fp->_wide_data->_IO_state = fp->_wide_data->_IO_last_state;
- nread = (*cv->__codecvt_do_length) (cv,
- &fp->_wide_data->_IO_state,
- fp->_IO_read_base,
- fp->_IO_read_end, delta);
+ nread = __libio_codecvt_length (cv,
+ &fp->_wide_data->_IO_state,
+ fp->_IO_read_base,
+ fp->_IO_read_end, delta);
fp->_IO_read_ptr = fp->_IO_read_base + nread;
fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_read_ptr;
offset -= fp->_IO_read_end - fp->_IO_read_base - nread;
projects / thirdparty / glibc.git / commitdiff
