From patchwork Sat Apr 27 15:30:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samuel Thibault X-Patchwork-Id: 10920425 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 18AAD933 for ; Sat, 27 Apr 2019 15:31:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F2E1C28C93 for ; Sat, 27 Apr 2019 15:31:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E6ED428C96; Sat, 27 Apr 2019 15:31:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0273028C93 for ; Sat, 27 Apr 2019 15:31:23 +0000 (UTC) Received: from localhost ([127.0.0.1]:33319 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hKPIQ-0001Bs-MP for patchwork-qemu-devel@patchwork.kernel.org; Sat, 27 Apr 2019 11:31:22 -0400 Received: from eggs.gnu.org ([209.51.188.92]:51683) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hKPHk-0000Vp-Nm for qemu-devel@nongnu.org; Sat, 27 Apr 2019 11:30:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hKPHj-0002Lj-8T for qemu-devel@nongnu.org; Sat, 27 Apr 2019 11:30:40 -0400 Received: from hera.aquilenet.fr ([2a0c:e300::1]:46208) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hKPHi-0002KH-Um for qemu-devel@nongnu.org; Sat, 27 Apr 2019 11:30:39 -0400 Received: from localhost (localhost [127.0.0.1]) by hera.aquilenet.fr (Postfix) with ESMTP id 8D4D43CD7; Sat, 27 Apr 2019 17:30:34 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at aquilenet.fr Received: from hera.aquilenet.fr ([127.0.0.1]) by localhost (hera.aquilenet.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Jxmc6zWDN_pP; Sat, 27 Apr 2019 17:30:33 +0200 (CEST) Received: from function (105.251.129.77.rev.sfr.net [77.129.251.105]) by hera.aquilenet.fr (Postfix) with ESMTPSA id 179823CD0; Sat, 27 Apr 2019 17:30:33 +0200 (CEST) Received: from samy by function with local (Exim 4.92) (envelope-from ) id 1hKPHc-0001LH-2q; Sat, 27 Apr 2019 17:30:32 +0200 From: Samuel Thibault To: qemu-devel@nongnu.org Date: Sat, 27 Apr 2019 17:30:31 +0200 Message-Id: <20190427153031.5119-1-samuel.thibault@ens-lyon.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a0c:e300::1 Subject: [Qemu-devel] [PATCH] curses: Do not assume wchar_t contains unicode X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Samuel Thibault , kamil@netbsd.org, kraxel@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP E.g. BSD and Solaris even use locale-specific encoding there. We thus have to go through the native multibyte representation and use mbtowc/wctomb to make a proper conversion. Signed-off-by: Samuel Thibault --- ui/curses.c | 151 ++++++++++++++++++++++++++++++++-------------------- 1 file changed, 94 insertions(+), 57 deletions(-) diff --git a/ui/curses.c b/ui/curses.c index fb63945188..4414399e73 100644 --- a/ui/curses.c +++ b/ui/curses.c @@ -400,65 +400,102 @@ static void curses_atexit(void) endwin(); } +/* + * In the following: + * - fch is the font glyph number + * - uch is the unicode value + * - wch is the wchar_t value (may not be unicode, e.g. on BSD/solaris) + * - mbch is the native local-dependent multibyte representation + */ + /* Setup wchar glyph for one UCS-2 char */ -static void convert_ucs(int glyph, uint16_t ch, iconv_t conv) +static void convert_ucs(unsigned char fch, uint16_t uch, iconv_t conv) { + char mbch[MB_CUR_MAX]; wchar_t wch; - char *pch, *pwch; - size_t sch, swch; - - pch = (char *) &ch; - pwch = (char *) &wch; - sch = sizeof(ch); - swch = sizeof(wch); + char *puch, *pmbch; + size_t such, smbch; + + puch = (char *) &uch; + pmbch = (char *) mbch; + such = sizeof(uch); + smbch = sizeof(mbch); + + if (iconv(conv, &puch, &such, &pmbch, &smbch) == (size_t) -1) { + fprintf(stderr, "Could not convert 0x%04x " + "from UCS-2 to a multibyte character: %s\n", + uch, strerror(errno)); + return; + } - if (iconv(conv, &pch, &sch, &pwch, &swch) == (size_t) -1) { - fprintf(stderr, "Could not convert 0x%04x from UCS-2 to WCHAR_T: %s\n", - ch, strerror(errno)); - } else { - vga_to_curses[glyph].chars[0] = wch; + if (mbtowc(&wch, mbch, sizeof(mbch) - smbch) == -1) { + fprintf(stderr, "Could not convert 0x%04x " + "from a multibyte character to wchar_t: %s\n", + uch, strerror(errno)); + return; } + vga_to_curses[fch].chars[0] = wch; } /* Setup wchar glyph for one font character */ -static void convert_font(unsigned char ch, iconv_t conv) +static void convert_font(unsigned char fch, iconv_t conv) { + char mbch[MB_CUR_MAX]; wchar_t wch; - char *pch, *pwch; - size_t sch, swch; - - pch = (char *) &ch; - pwch = (char *) &wch; - sch = sizeof(ch); - swch = sizeof(wch); + char *pfch, *pmbch; + size_t sfch, smbch; + + pfch = (char *) &fch; + pmbch = (char *) &mbch; + sfch = sizeof(fch); + smbch = sizeof(mbch); + + if (iconv(conv, &pfch, &sfch, &pmbch, &smbch) == (size_t) -1) { + fprintf(stderr, "Could not convert font glyph 0x%02x " + "from %s to a multibyte character: %s\n", + fch, font_charset, strerror(errno)); + return; + } - if (iconv(conv, &pch, &sch, &pwch, &swch) == (size_t) -1) { - fprintf(stderr, "Could not convert 0x%02x from %s to WCHAR_T: %s\n", - ch, font_charset, strerror(errno)); - } else { - vga_to_curses[ch].chars[0] = wch; + if (mbtowc(&wch, mbch, sizeof(mbch) - smbch) == -1) { + fprintf(stderr, "Could not convert font glyph 0x%02x " + "from a multibyte character to wchar_t: %s\n", + fch, strerror(errno)); + return; } + vga_to_curses[fch].chars[0] = wch; } /* Convert one wchar to UCS-2 */ static uint16_t get_ucs(wchar_t wch, iconv_t conv) { - uint16_t ch; - char *pch, *pwch; - size_t sch, swch; - - pch = (char *) &ch; - pwch = (char *) &wch; - sch = sizeof(ch); - swch = sizeof(wch); - - if (iconv(conv, &pwch, &swch, &pch, &sch) == (size_t) -1) { - fprintf(stderr, "Could not convert 0x%02lx from WCHAR_T to UCS-2: %s\n", - (unsigned long)wch, strerror(errno)); + char mbch[MB_CUR_MAX]; + uint16_t uch; + char *pmbch, *puch; + size_t smbch, such; + int ret; + + ret = wctomb(mbch, wch); + if (ret == -1) { + fprintf(stderr, "Could not convert 0x%04x " + "from wchar_t to a multibyte character: %s\n", + uch, strerror(errno)); + return 0xFFFD; + } + + pmbch = (char *) mbch; + puch = (char *) &uch; + smbch = ret; + such = sizeof(uch); + + if (iconv(conv, &pmbch, &smbch, &puch, &such) == (size_t) -1) { + fprintf(stderr, "Could not convert 0x%04x " + "from a multibyte character to UCS-2 : %s\n", + uch, strerror(errno)); return 0xFFFD; } - return ch; + return uch; } /* @@ -466,6 +503,11 @@ static uint16_t get_ucs(wchar_t wch, iconv_t conv) */ static void font_setup(void) { + iconv_t ucs2_to_nativecharset; + iconv_t nativecharset_to_ucs2; + iconv_t font_conv; + int i; + /* * Control characters are normally non-printable, but VGA does have * well-known glyphs for them. @@ -505,30 +547,25 @@ static void font_setup(void) 0x25bc }; - iconv_t ucs_to_wchar_conv; - iconv_t wchar_to_ucs_conv; - iconv_t font_conv; - int i; - - ucs_to_wchar_conv = iconv_open("WCHAR_T", "UCS-2"); - if (ucs_to_wchar_conv == (iconv_t) -1) { + ucs2_to_nativecharset = iconv_open(nl_langinfo(CODESET), "UCS-2"); + if (ucs2_to_nativecharset == (iconv_t) -1) { fprintf(stderr, "Could not convert font glyphs from UCS-2: '%s'\n", strerror(errno)); exit(1); } - wchar_to_ucs_conv = iconv_open("UCS-2", "WCHAR_T"); - if (wchar_to_ucs_conv == (iconv_t) -1) { - iconv_close(ucs_to_wchar_conv); + nativecharset_to_ucs2 = iconv_open("UCS-2", nl_langinfo(CODESET)); + if (nativecharset_to_ucs2 == (iconv_t) -1) { + iconv_close(ucs2_to_nativecharset); fprintf(stderr, "Could not convert font glyphs to UCS-2: '%s'\n", strerror(errno)); exit(1); } - font_conv = iconv_open("WCHAR_T", font_charset); + font_conv = iconv_open(nl_langinfo(CODESET), font_charset); if (font_conv == (iconv_t) -1) { - iconv_close(ucs_to_wchar_conv); - iconv_close(wchar_to_ucs_conv); + iconv_close(ucs2_to_nativecharset); + iconv_close(nativecharset_to_ucs2); fprintf(stderr, "Could not convert font glyphs from %s: '%s'\n", font_charset, strerror(errno)); exit(1); @@ -536,7 +573,7 @@ static void font_setup(void) /* Control characters */ for (i = 0; i <= 0x1F; i++) { - convert_ucs(i, control_characters[i], ucs_to_wchar_conv); + convert_ucs(i, control_characters[i], ucs2_to_nativecharset); } for (i = 0x20; i <= 0xFF; i++) { @@ -544,12 +581,12 @@ static void font_setup(void) } /* DEL */ - convert_ucs(0x7F, 0x2302, ucs_to_wchar_conv); + convert_ucs(0x7F, 0x2302, ucs2_to_nativecharset); if (strcmp(nl_langinfo(CODESET), "UTF-8")) { /* Non-Unicode capable, use termcap equivalents for those available */ for (i = 0; i <= 0xFF; i++) { - switch (get_ucs(vga_to_curses[i].chars[0], wchar_to_ucs_conv)) { + switch (get_ucs(vga_to_curses[i].chars[0], nativecharset_to_ucs2)) { case 0x00a3: vga_to_curses[i] = *WACS_STERLING; break; @@ -649,8 +686,8 @@ static void font_setup(void) } } } - iconv_close(ucs_to_wchar_conv); - iconv_close(wchar_to_ucs_conv); + iconv_close(ucs2_to_nativecharset); + iconv_close(nativecharset_to_ucs2); iconv_close(font_conv); }