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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/mbsnrtowcs.c | |
parent | 91641c65220646ae2ad8b4ec6972adc7e6720d36 (diff) | |
download | glibc-4bca4c174852bfc348f99e85684fc8f65631d125.tar.gz glibc-4bca4c174852bfc348f99e85684fc8f65631d125.tar.xz glibc-4bca4c174852bfc348f99e85684fc8f65631d125.zip |
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/mbsnrtowcs.c')
-rw-r--r-- | wcsmbs/mbsnrtowcs.c | 193 |
1 files changed, 79 insertions, 114 deletions
diff --git a/wcsmbs/mbsnrtowcs.c b/wcsmbs/mbsnrtowcs.c index db67d5c1bb..ded15e4299 100644 --- a/wcsmbs/mbsnrtowcs.c +++ b/wcsmbs/mbsnrtowcs.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; /* This is a non-standard function but it is very useful in the implementation of stdio because we have to deal with unterminated @@ -40,128 +44,89 @@ __mbsnrtowcs (dst, src, nmc, len, ps) size_t len; mbstate_t *ps; { - size_t written = 0; - const char *run = *src; - const char *last = run + nmc; - wchar_t value; - size_t count; + size_t inbytes_in; + 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; - /* Get information from last use of this state. */ - count = ps->count; - value = ps->value; + if (nmc == 0) + return 0; + inbytes_in = __strnlen (*src, nmc - 1) + 1; - 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 && run < last) + /* We have to handle DST == NULL special. */ + if (dst == NULL) { - unsigned char byte; - - /* Store address of next byte to process. */ - *src = run; - - /* Start reading a new character only if we are in the initial - state. */ - if (count == 0) - { - 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 (run < last && count > 0) - { - byte = *run++; - --count; - - if ((byte & 0xc0) != 0x80) - { - /* This is an illegal encoding. */ - __set_errno (EILSEQ); - return (size_t) -1; - } - - value <<= 6; - value |= byte & 0x3f; - } - - /* If this character is only partially available remember this. */ - if (run == last && count != 0) + wchar_t buf[64]; /* Just an arbitrary size. */ + size_t inbytes = inbytes_in; + const char *inbuf = *src; + size_t written; + + data.outbuf = (char *) buf; + data.outbufsize = sizeof (buf); + do { - ps->count = count; - ps->value = value; - break; + 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 = 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; - ps->count = 0; - 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 (__mbsnrtowcs, mbsnrtowcs) |