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 v2 20/32] wrapper.c: wrapper to open a file, fprintf then close Date: Thu, 11 Sep 2014 05:41:56 +0700 Message-ID: <1410388928-32265-21-git-send-email-pclouds@gmail.com> References: <1409387642-24492-1-git-send-email-pclouds@gmail.com> <1410388928-32265-1-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 Thu Sep 11 00:43:57 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 1XRqcE-00024L-VA for gcvg-git-2@plane.gmane.org; Thu, 11 Sep 2014 00:43:55 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753360AbaIJWnv convert rfc822-to-quoted-printable (ORCPT ); Wed, 10 Sep 2014 18:43:51 -0400 Received: from mail-pa0-f50.google.com ([209.85.220.50]:44589 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752299AbaIJWnu (ORCPT ); Wed, 10 Sep 2014 18:43:50 -0400 Received: by mail-pa0-f50.google.com with SMTP id bj1so6644263pad.9 for ; Wed, 10 Sep 2014 15:43:50 -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=ipDRqBwW+94ElqC7bq0epnIwuTT3T0iuA0nu5HV0pAg=; b=xHxoHJwXhD+QPCQ4UXBI9yjRoUTmfFd+rz72IlDjxA6Wb6E45gDjUWmeGVaPXgNVhR DFQqW+bNgBWhmXm2Rx4g1FzRTsyItQdDoNARjFzD1Fz+lSgKuCs9+icy+6nH/VOSZ8wH nlln72r8co9QsDwCMUv7U9NluFnUHH6pJqYplnBgfqQL838GjBvUUYmuhWyg/kM7bzqe R3crL1b0lLAoZ/93qbsglmsgtTXht5JfRqgnXKj9dv/CJX74oytmmUjGkxwFfEKra5nn WqxPJ3KFr+9mdhakVsR2QBciEeVBSMayihCtdJBrcQDKAkQkdBf6+bHZr1a/jSL5uuuX 9c4g== X-Received: by 10.68.139.232 with SMTP id rb8mr41473747pbb.20.1410389030070; Wed, 10 Sep 2014 15:43:50 -0700 (PDT) Received: from lanh ([115.73.197.210]) by mx.google.com with ESMTPSA id i1sm15603924pdf.46.2014.09.10.15.43.47 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 10 Sep 2014 15:43:49 -0700 (PDT) Received: by lanh (sSMTP sendmail emulation); Thu, 11 Sep 2014 05:44:09 +0700 X-Mailer: git-send-email 2.1.0.rc0.78.gc0d8480 In-Reply-To: <1410388928-32265-1-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 Signed-off-by: Junio C Hamano --- cache.h | 2 ++ wrapper.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/cache.h b/cache.h index e3ff7dc..bf4d15e 100644 --- a/cache.h +++ b/cache.h @@ -1359,6 +1359,8 @@ 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 2.1.0.rc0.78.gc0d8480