From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Subject: [PATCH v6 22/32] wrapper.c: wrapper to open a file, fprintf then close Date: Wed, 9 Jul 2014 14:33:07 +0700 Message-ID: <1404891197-18067-23-git-send-email-pclouds@gmail.com> References: <1404891197-18067-1-git-send-email-pclouds@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Junio C Hamano , =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Wed Jul 09 09:35:36 2014 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1X4mPd-00048f-RZ for gcvg-git-2@plane.gmane.org; Wed, 09 Jul 2014 09:35:34 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754990AbaGIHf2 convert rfc822-to-quoted-printable (ORCPT ); Wed, 9 Jul 2014 03:35:28 -0400 Received: from mail-pa0-f44.google.com ([209.85.220.44]:46477 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754949AbaGIHf0 (ORCPT ); Wed, 9 Jul 2014 03:35:26 -0400 Received: by mail-pa0-f44.google.com with SMTP id rd3so8794534pab.3 for ; Wed, 09 Jul 2014 00:35:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=MRz+MEI5Tn4jq7gLE2aHpDkVpVcbG4NNjJbRUi1ovtw=; b=ijJmoFZaVaTEmMawcF/abRcVdBnAgVEXYYJHcb0Q8RU7GBTXMX2teE3Uhjm+qzwAzo 1pSr78nDSQk+FsL9vcCZc/X0+scezUFl/DQ+pVtlWfMw0iroYNIWmd+iRJBtpbSJhPRP VeD5qgftXYwdoZhDRxYr/H46IWxeBf95a/b+aYmtE/SsrGqHt9+P5HGK2fJvblLq0OAl WBg1IdigZsbJtHP3IkN36R+sIUL0v2rr+1wbj2PILK7HLBbbi3B3xQhKMgYpTx9UyHHM F5/dSaeFDxnxJlrv9ZROoqPesW9MMgl5MuFSvCs5OFQdnssJpNDW5FovcBemAsWjeKFz DHbQ== X-Received: by 10.68.189.232 with SMTP id gl8mr29729911pbc.89.1404891326127; Wed, 09 Jul 2014 00:35:26 -0700 (PDT) Received: from lanh ([115.73.209.165]) by mx.google.com with ESMTPSA id b2sm27266613pdh.20.2014.07.09.00.35.23 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 Jul 2014 00:35:25 -0700 (PDT) Received: by lanh (sSMTP sendmail emulation); Wed, 09 Jul 2014 14:35:23 +0700 X-Mailer: git-send-email 1.9.1.346.ga2b5940 In-Reply-To: <1404891197-18067-1-git-send-email-pclouds@gmail.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Signed-off-by: Nguy=E1=BB=85n Th=C3=A1i Ng=E1=BB=8Dc Duy --- cache.h | 2 ++ wrapper.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/cache.h b/cache.h index e7dd5ce..b363c00 100644 --- a/cache.h +++ b/cache.h @@ -1355,6 +1355,8 @@ static inline ssize_t write_str_in_full(int fd, c= onst char *str) { return write_in_full(fd, str, strlen(str)); } +__attribute__((format (printf,3,4))) +extern int write_file(const char *path, int fatal, const char *fmt, ..= =2E); =20 /* pager.c */ extern void setup_pager(void); diff --git a/wrapper.c b/wrapper.c index bc1bfb8..9d7b9ac 100644 --- a/wrapper.c +++ b/wrapper.c @@ -493,3 +493,34 @@ struct passwd *xgetpwuid_self(void) errno ? strerror(errno) : _("no such user")); return pw; } + +int write_file(const char *path, int fatal, const char *fmt, ...) +{ + struct strbuf sb =3D STRBUF_INIT; + va_list params; + int fd =3D open(path, O_RDWR | O_CREAT | O_TRUNC, 0666); + if (fd < 0) { + if (fatal) + die_errno(_("could not open %s for writing"), path); + return -1; + } + va_start(params, fmt); + strbuf_vaddf(&sb, fmt, params); + va_end(params); + if (write_in_full(fd, sb.buf, sb.len) !=3D sb.len) { + int err =3D errno; + close(fd); + strbuf_release(&sb); + errno =3D err; + if (fatal) + die_errno(_("could not write to %s"), path); + return -1; + } + strbuf_release(&sb); + if (close(fd)) { + if (fatal) + die_errno(_("could not close %s"), path); + return -1; + } + return 0; +} --=20 1.9.1.346.ga2b5940