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-rw-r--r--wcsmbs/Makefile2
-rw-r--r--wcsmbs/wchar.h20
-rw-r--r--wcsmbs/wmemrtombs.c121
-rw-r--r--wcsmbs/wmemrtowcs.c134
4 files changed, 276 insertions, 1 deletions
diff --git a/wcsmbs/Makefile b/wcsmbs/Makefile
index 985f5957f9..5dd46da551 100644
--- a/wcsmbs/Makefile
+++ b/wcsmbs/Makefile
@@ -29,7 +29,7 @@ routines := wcscat wcschr wcscmp wcscpy wcscspn wcsdup wcslen wcsncat \
wmemcmp wmemcpy wmemmove wmemset wcpcpy wcpncpy \
btowc wctob mbsinit \
mbrlen mbrtowc wcrtomb mbsrtowcs wcsrtombs \
- mbsnrtowcs wcsnrtombs \
+ mbsnrtowcs wcsnrtombs wmemrtowcs wmemrtombs \
wcstol wcstoul wcstoll wcstoull wcstod wcstold wcstof \
wcstol_l wcstoul_l wcstoll_l wcstoull_l \
wcstod_l wcstold_l wcstof_l \
diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
index 966d20cba1..4c8f9a4dcf 100644
--- a/wcsmbs/wchar.h
+++ b/wcsmbs/wchar.h
@@ -253,6 +253,16 @@ extern size_t mbsnrtowcs __P ((wchar_t *__restrict __dst,
__const char **__restrict __src, size_t __nmc,
size_t __len, mbstate_t *__restrict __ps));
+/* Similar function to the above but this does not stop at NUL bytes. */
+extern size_t __wmemrtowcs __P ((wchar_t *__restrict __dst,
+ __const char **__restrict __src,
+ size_t __nmc, size_t __len,
+ mbstate_t *__restrict __ps));
+extern size_t wmemrtowcs __P ((wchar_t *__restrict __dst,
+ __const char **__restrict __src,
+ size_t __nmc, size_t __len,
+ mbstate_t *__restrict __ps));
+
/* Write multibyte character representation of at most NWC characters
from the wide character string SRC to DST. */
extern size_t __wcsnrtombs __P ((char *__restrict __dst,
@@ -264,6 +274,16 @@ extern size_t wcsnrtombs __P ((char *__restrict __dst,
size_t __nwc, size_t __len,
mbstate_t *__restrict __ps));
+/* Similar function to the above but this does not stop at NUL bytes. */
+extern size_t __wmemrtombs __P ((char *__restrict __dst,
+ __const wchar_t **__restrict __src,
+ size_t __nwc, size_t len,
+ mbstate_t *__restrict __ps));
+extern size_t wmemrtombs __P ((char *__restrict __dst,
+ __const wchar_t **__restrict __src,
+ size_t __nwc, size_t len,
+ mbstate_t *__restrict __ps));
+
/* The following functions are extensions found in X/Open CAE. */
diff --git a/wcsmbs/wmemrtombs.c b/wcsmbs/wmemrtombs.c
new file mode 100644
index 0000000000..2bbd66788e
--- /dev/null
+++ b/wcsmbs/wmemrtombs.c
@@ -0,0 +1,121 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@gnu.org>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <wchar.h>
+
+#ifndef EILSEQ
+#define EILSEQ EINVAL
+#endif
+
+
+static const wchar_t encoding_mask[] =
+{
+ ~0x7ff, ~0xffff, ~0x1fffff, ~0x3ffffff
+};
+
+static const unsigned char encoding_byte[] =
+{
+ 0xc0, 0xe0, 0xf0, 0xf8, 0xfc
+};
+
+/* We don't need the state really because we don't have shift states
+ to maintain between calls to this function. */
+static mbstate_t internal;
+
+/* This is a non-standard function but it is very useful in the
+ implementation of stdio because we have to deal with unterminated
+ buffers. At most NWC wide character will be converted. */
+size_t
+__wmemrtombs (dst, src, nwc, len, ps)
+ char *dst;
+ const wchar_t **src;
+ size_t nwc;
+ size_t len;
+ mbstate_t *ps;
+{
+ size_t written = 0;
+ const wchar_t *run = *src;
+
+ if (ps == NULL)
+ ps = &internal;
+
+ if (dst == NULL)
+ /* The LEN parameter has to be ignored if we don't actually write
+ anything. */
+ len = ~0;
+
+ while (written < len && nwc-- > 0)
+ {
+ wchar_t wc = *run++;
+
+ if (wc < 0 || wc > 0x7fffffff)
+ {
+ /* This is no correct ISO 10646 character. */
+ __set_errno (EILSEQ);
+ return (size_t) -1;
+ }
+
+ if (wc < 0x80)
+ {
+ /* It's an one byte sequence. */
+ if (dst != NULL)
+ *dst++ = (char) wc;
+ ++written;
+ }
+ else
+ {
+ size_t step;
+
+ for (step = 2; step < 6; ++step)
+ if ((wc & encoding_mask[step - 2]) == 0)
+ break;
+
+ if (written + step >= len)
+ /* Too long. */
+ break;
+
+ if (dst != NULL)
+ {
+ size_t cnt = step;
+
+ dst[0] = encoding_byte[cnt - 2];
+
+ --cnt;
+ do
+ {
+ dst[cnt] = 0x80 | (wc & 0x3f);
+ wc >>= 6;
+ }
+ while (--cnt > 0);
+ dst[0] |= wc;
+
+ dst += step;
+ }
+
+ written += step;
+ }
+ }
+
+ /* Store position of first unprocessed word. */
+ *src = run;
+
+ return written;
+}
+weak_alias (__wmemrtombs, wmemrtombs)
diff --git a/wcsmbs/wmemrtowcs.c b/wcsmbs/wmemrtowcs.c
new file mode 100644
index 0000000000..1686229b8f
--- /dev/null
+++ b/wcsmbs/wmemrtowcs.c
@@ -0,0 +1,134 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@gnu.org>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <wchar.h>
+
+#ifndef EILSEQ
+#define EILSEQ EINVAL
+#endif
+
+
+/* We don't need the state really because we don't have shift states
+ to maintain between calls to this function. */
+static mbstate_t internal;
+
+/* This is a non-standard function but it is very useful in the
+ implementation of stdio because we have to deal with unterminated
+ buffers. At most NMC bytes will be converted. */
+size_t
+__wmemrtowcs (dst, src, nmc, len, ps)
+ wchar_t *dst;
+ const char **src;
+ size_t nmc;
+ size_t len;
+ mbstate_t *ps;
+{
+ size_t written = 0;
+ const char *run = *src;
+ const char *last = run + nmc;
+
+ if (ps == NULL)
+ ps = &internal;
+
+ if (dst == NULL)
+ /* The LEN parameter has to be ignored if we don't actually write
+ anything. */
+ len = ~0;
+
+ /* Copy all words. */
+ while (written < len && run < last)
+ {
+ wchar_t value;
+ size_t count;
+ unsigned char byte = *run++;
+
+ /* We expect a start of a new multibyte character. */
+ if (byte < 0x80)
+ {
+ /* One byte sequence. */
+ count = 0;
+ value = byte;
+ }
+ else if ((byte & 0xe0) == 0xc0)
+ {
+ count = 1;
+ value = byte & 0x1f;
+ }
+ else if ((byte & 0xf0) == 0xe0)
+ {
+ /* We expect three bytes. */
+ count = 2;
+ value = byte & 0x0f;
+ }
+ else if ((byte & 0xf8) == 0xf0)
+ {
+ /* We expect four bytes. */
+ count = 3;
+ value = byte & 0x07;
+ }
+ else if ((byte & 0xfc) == 0xf8)
+ {
+ /* We expect five bytes. */
+ count = 4;
+ value = byte & 0x03;
+ }
+ else if ((byte & 0xfe) == 0xfc)
+ {
+ /* We expect six bytes. */
+ count = 5;
+ value = byte & 0x01;
+ }
+ else
+ {
+ /* This is an illegal encoding. */
+ __set_errno (EILSEQ);
+ return (size_t) -1;
+ }
+
+ /* Read the possible remaining bytes. */
+ while (count-- > 0)
+ {
+ byte = *run++;
+
+ if ((byte & 0xc0) != 0x80)
+ {
+ /* This is an illegal encoding. */
+ __set_errno (EILSEQ);
+ return (size_t) -1;
+ }
+
+ value <<= 6;
+ value |= byte & 0x3f;
+ }
+
+ /* Store value is required. */
+ if (dst != NULL)
+ *dst++ = value;
+
+ /* Increment counter of produced words. */
+ ++written;
+ }
+
+ /* Store address of next byte to process. */
+ *src = run;
+
+ return written;
+}
+weak_alias (__wmemrtowcs, wmemrtowcs)
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-20 04:22:17 +0000