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author | Ulrich Drepper <drepper@redhat.com> | 1998-04-07 09:21:28 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1998-04-07 09:21:28 +0000 |
commit | 4bca4c174852bfc348f99e85684fc8f65631d125 (patch) | |
tree | a5779cb83844d32d94557e4b8613278d7d877c9b /wcsmbs/mbsrtowcs.c | |
parent | 91641c65220646ae2ad8b4ec6972adc7e6720d36 (diff) | |
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Update.
1998-04-07 08:51 Ulrich Drepper <drepper@cygnus.com>
* iconv/gconv.c: Take care for NULL arguments.
* iconv/gconv_dl.c: Make find_func function global.
* iconv/gconv_int.h: Add prototype for __gconv_find_func.
Add prototypes for ASCII conversion functions.
* iconv/gconv_simple.c: Add ASCII conversion functions.
* locale/C-ctype.c: Correct charset name.
* wcsmbs/Makefile (distribute): Add wcsmbsload.h.
(routines): Remove wmemrtowcs and wmemrtombs, add wcsnlen and
wcsmbsload.
* wcsmbs/btowc.c: Rewrite to use iconv functionality.
* wcsmbs/mbrtowc.c: Likewise.
* wcsmbs/mbsnrtowcs.c: Likewise.
* wcsmbs/mbsrtowcs.c: Likewise.
* wcsmbs/wcrtomb.c: Likewise.
* wcsmbs/wcsnrtombs.c: Likewise.
* wcsmbs/wcsrtombs.c: Likewise.
* wcsmbs/wctob.c: Likewise.
* wcsmbs/wchar.h: Add prototype for __wcslen, wcsnlen. Remove
prototypes for wmemr*.
* wcsmbs/wcslen.c: Rename to __wcslen and make wcslen weak alias.
* wcsmbs/wcsnlen.c: New file.
* wcsmbs/wcsmbsload.c: New file.
* wcsmbs/wcsmbsload.h: New file.
* manual/filesys.texi: Mention risks of tmpnam and mktemp.
* manual/install.texi: Describe some more critical points.
* string/string.h: Add prototype for __strnlen.
* string/strnlen.c: Rename to __strnlen and make strnlen weak alias.
* sysdeps/posix/mktemp.c: Rewrite to allow many more files and
much less predictable names.
* sysdeps/posix/mkstemp.c: Likewise.
1998-04-05 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/libc.texinfo (Top): Change "file namespace" to "local
namespace".
* manual/socket.texi: Change file namespace to local namespace.
(Out-of-Band Data): Remove unneeded variable link.
(Host Address Functions): Use uint32_t consequently and add a
number of clarifications for IPv4/IPv6, classless addresses.
(Internet Namespace): Added some paragraphs about IPv6.
Based on suggestions by Francesco Potorti` <F.Potorti@cnuce.cnr.it>.
1998-04-05 Philip Blundell <Philip.Blundell@pobox.com>
Update for draft-ietf-ipngwg-bsd-api-new-01.txt:
* resolv/netdb.h (getnameinfo): Use `socklen_t' not `size_t'.
(NI_NUMERICHOST, et al.): Tidy up and add comments.
(AI_NUMERICHOST): Define.
(getnodebyname): New prototype.
(AI_V4MAPPED, et al.): New constants.
* sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h (SA_LEN): New macro.<
* sysdeps/generic/bits/sockaddr.h (SA_LEN): Likewise.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add sa_len
for socket.
* sysdeps/unix/sysv/linux/sa_len.c: New file.
* sysdeps/unix/sysv/linux/Dist: Add sa_len.c.
* sysdeps/unix/sysv/linux/bits/socket.h: Make multiple #inclusion safe.
* sysdeps/generic/bits/sockunion.h: New file, defining sockaddr_union.
* sysdeps/unix/sysv/linux/bits/sockunion.h: Likewise.
* socket/Makefile (headers): Add bits/sockunion.h.
* socket/sys/socket.h: Include <bits/sockunion.h>
* inet/netinet/in.h: Include <bits/sockaddr.h> rather than
<sys/socket.h>, to avoid getting sockaddr_union defined.
* sysdeps/generic/bits/socket.h: Allow inclusion from netinet.in.h.
* sysdeps/unix/sysv/linux/bits/socket.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise.
* sysdeps/unix/sysv/linux/if_index.c: Remove use of SIOCGIFCOUNT
(2.2.x kernels won't have it).
1998-04-06 21:21 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/mach/hurd/bits/ioctls.h: Allow inclusion from hurd/ioctl.h.
* sysdeps/mach/hurd/dl-sysdep.c: Use __ptr_t not caddr_t.
* iconv/gconv_conf.c: Define MAXPATHLEN if not available before.
Patches by UCHIYAMA Yasushi <uch@nop.or.jp>.
1998-04-05 Philip Blundell <Philip.Blundell@pobox.com>
* manual/socket.texi (Socket Addresses): Fix a typo.
(Interface Naming): New section.
1998-04-05 23:29 Zack Weinberg <zack@rabi.phys.columbia.edu>
* configure.in: Check for CC using $ac_tool_prefix, to handle
cross-compilation. Use AC_CHECK_TOOL to find MiG.
* config.make.in: Add MIG to be substituted.
* mach/Machrules: Don't define MIG variable.
Patch by Gordon Matzigkeit <gord@profitpress.com>.
1998-04-05 Mark Kettenis <kettenis@phys.uva.nl>
* elf/dl-load.c (decompose_rpath): Use local_strdup instead of
strdupa to copy rpath.
1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in: Fix gcc version check.
* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less confusing.
1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in: Fix gcc version check.
* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
confusing.
1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in: Fix gcc version check.
* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
confusing.
1998-03-31 Mark Kettenis <kettenis@phys.uva.nl>
* sysdeps/unix/bsd/unlockpt.c (unlockpt): Call __ptsname_r instead
of ptsname_r.
* stdlib/stdlib.h: Change prototype of ptsname_r to make it more
like ttyname_r.
* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Likewise.
* sysdeps/generic/ptsname.c (__ptsname_r): Likewise.
* sysdeps/unix/grantpt.c (grantpt): Change check of return value
of __ptsname_r accordingly.
* login/openpty.c (openpty): Likewise.
1998-06-04 18:47 H.J. Lu <hjl@gnu.org>
* libio/fileops.c (_IO_file_xsgetn): Adjust pointers.
1998-04-06 13:58 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makeconfig (libtypes): Redo H.J. Lu's change of 1998-03-27.
* Makerules: Readd missing rule for $(objpfx)stamp.oS.
1998-04-06 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/ypclnt.c: Don't give YPERR_RPC back, use the do_ypcall
return value for better error checking.
Diffstat (limited to 'wcsmbs/mbsrtowcs.c')
-rw-r--r-- | wcsmbs/mbsrtowcs.c | 172 |
1 files changed, 77 insertions, 95 deletions
diff --git a/wcsmbs/mbsrtowcs.c b/wcsmbs/mbsrtowcs.c index 84d4cbf66d..d0af40fb54 100644 --- a/wcsmbs/mbsrtowcs.c +++ b/wcsmbs/mbsrtowcs.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996. @@ -18,16 +18,20 @@ Boston, MA 02111-1307, USA. */ #include <errno.h> +#include <gconv.h> +#include <string.h> #include <wchar.h> +#include <wcsmbsload.h> + +#include <assert.h> #ifndef EILSEQ -#define EILSEQ EINVAL +# 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 the private state used if PS is NULL. */ +static mbstate_t state; size_t __mbsrtowcs (dst, src, len, ps) @@ -36,108 +40,86 @@ __mbsrtowcs (dst, src, len, ps) size_t len; mbstate_t *ps; { - size_t written = 0; - const char *run = *src; + struct gconv_step_data data; + size_t result = 0; + int status; - if (ps == NULL) - ps = &internal; + /* Tell where we want the result. */ + data.is_last = 1; + data.statep = ps ?: &state; - if (dst == NULL) - /* The LEN parameter has to be ignored if we don't actually write - anything. */ - len = ~0; + /* Make sure we use the correct function. */ + update_conversion_ptrs (); - /* Copy all words. */ - while (written < len) + /* We have to handle DST == NULL special. */ + if (dst == NULL) { - wchar_t value; - size_t count; - unsigned char byte; - - /* Store address of next byte to process. */ - *src = run; - - 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) + wchar_t buf[64]; /* Just an arbitrary size. */ + size_t inbytes_in = strlen (*src) + 1; + size_t inbytes = inbytes_in; + const char *inbuf = *src; + size_t written; + + data.outbuf = (char *) buf; + data.outbufsize = sizeof (buf); + do { - /* 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; + inbuf += inbytes_in - inbytes; + inbytes_in = inbytes; + data.outbufavail = 0; + written = 0; + + status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc, + &data, inbuf, &inbytes, + &written, 0); + result += written; } + while (status == GCONV_FULL_OUTPUT); - /* Store value is required. */ - if (dst != NULL) - *dst++ = value; - - /* The whole sequence is read. Check whether end of string is - reached. */ - if (value == L'\0') + if (status == GCONV_OK && ((wchar_t *) dst)[written - 1] == L'\0') + /* Don't count the NUL character in. */ + --result; + } + else + { + /* This code is based on the safe assumption that all internal + multi-byte encodings use the NUL byte only to mark the end + of the string. */ + size_t inbytes_in = __strnlen (*src, len * MB_CUR_MAX) + 1; + size_t inbytes = inbytes_in; + + data.outbuf = (char *) dst; + data.outbufsize = len * sizeof (wchar_t); + data.outbufavail = 0; + + status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc, + &data, *src, &inbytes, + &result, 0); + + /* We have to determine whether the last character converted + is the NUL character. */ + if (status == GCONV_OK && ((wchar_t *) dst)[result - 1] == L'\0') { - /* Found the end of the string. */ + assert (result > 0); + assert (mbsinit (data.statep)); *src = NULL; - return written; + --result; } - - /* Increment counter of produced words. */ - ++written; + else + *src += inbytes_in - inbytes; } - /* Store address of next byte to process. */ - *src = run; + /* There must not be any problems with the conversion but illegal input + characters. */ + assert (status == GCONV_OK || status == GCONV_ILLEGAL_INPUT + || status == GCONV_INCOMPLETE_INPUT || status == GCONV_FULL_OUTPUT); + + if (status != GCONV_OK && status != GCONV_FULL_OUTPUT) + { + result = (size_t) -1; + __set_errno (EILSEQ); + } - return written; + return result; } weak_alias (__mbsrtowcs, mbsrtowcs) |