From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.9 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM,RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 3901D2098A for ; Tue, 11 Oct 2016 00:22:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752818AbcJKAV4 (ORCPT ); Mon, 10 Oct 2016 20:21:56 -0400 Received: from mail-pa0-f51.google.com ([209.85.220.51]:34557 "EHLO mail-pa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752789AbcJKAVy (ORCPT ); Mon, 10 Oct 2016 20:21:54 -0400 Received: by mail-pa0-f51.google.com with SMTP id rz1so3953310pab.1 for ; Mon, 10 Oct 2016 17:21:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=dD0zTFaFb98SZpIDaNd635oI14v+C24NSqt/Cyp7lwU=; b=bbNc0wH4Frn29wjbmM6vfS5lJVCnbEpGISKqs2thjldibpPwC6SdSTWqHwCapycZLj wSaasXPOARmrBB5MtkIVGvgzk1f68hX5m4RNCU9L6K4DsKmvvf+m62Cfm3EyJhEUuG/2 KZkZcteEahpJDFd52kxfK0nuy+PF0TIn8iA1XZqmj7E0TLqUBF0w1RtJUOHdFJ4q1CAf pN/6MXRaBoeH4UJSYW3MumcuN7l7EQbxrKw26ELEKb4NHMVKArVhSg5Gr3YUNggND4AK iPieaqdbTlF8R5k0y0hfXH8pGi+hWyM2fRsrThb4cfZu8jAvfFhfUU0ZGow9oJ79vEF1 lI5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=dD0zTFaFb98SZpIDaNd635oI14v+C24NSqt/Cyp7lwU=; b=DnAcrIIovlLtZl2RrdqaGIKCE5ldr3asMm+9RVZtIT5oaUBbnrmZLl+ZLN2acJRRpg c3641dgmozAUWt/N2SalaDE9GWghmCVzFMHgxCp92LQTU58/WbsaWbMOLRs5lbvyVSSy ijGL7XpiLEP18z4esOGSrUQgKLOstsIkwQvGVqgq3dnbkZKP6bljyr/XXm4n62lrTUHM bF4ki2slEWv2/bLj+eWjvmcpYuVyACOa9eFqqW7mIMK7BgsCLwOT6GV0mqZPhZlw64RJ dftDLDEhVOX5VsONELivK9/vJmWBT3y6fDy9IbI+PdfOV7BYicirghO9FLuZqKexE8+Y ClWA== X-Gm-Message-State: AA6/9RmbGPABhhba5hmXfJEonvj+2wnFja0jRMORrwuwc4tRe86dAFuOGiqxDJYnf3/6oUXu X-Received: by 10.66.160.72 with SMTP id xi8mr1724579pab.78.1476145313112; Mon, 10 Oct 2016 17:21:53 -0700 (PDT) Received: from localhost ([2620:0:1000:5b10:b8ee:61f5:e989:77a7]) by smtp.gmail.com with ESMTPSA id bx5sm538934pad.6.2016.10.10.17.21.52 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Mon, 10 Oct 2016 17:21:52 -0700 (PDT) From: Stefan Beller To: gitster@pobox.com Cc: git@vger.kernel.org, bmwill@google.com, pclouds@gmail.com, Stefan Beller Subject: [PATCH 17/28] attr: expose validity check for attribute names Date: Mon, 10 Oct 2016 17:21:04 -0700 Message-Id: <20161011002115.23312-18-sbeller@google.com> X-Mailer: git-send-email 2.10.1.382.ga23ca1b.dirty In-Reply-To: <20161011002115.23312-1-sbeller@google.com> References: <20161011002115.23312-1-sbeller@google.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Junio C Hamano Export attr_name_valid() function, and a helper function that returns the message to be given when a given pair is not a good name for an attribute. We could later update the message to exactly spell out what the rules for a good attribute name are, etc. Signed-off-by: Junio C Hamano Signed-off-by: Stefan Beller --- attr.c | 39 +++++++++++++++++++++++++-------------- attr.h | 3 +++ 2 files changed, 28 insertions(+), 14 deletions(-) diff --git a/attr.c b/attr.c index 90dbacd..6e3bd25 100644 --- a/attr.c +++ b/attr.c @@ -59,23 +59,38 @@ static unsigned hash_name(const char *name, int namelen) return val; } -static int invalid_attr_name(const char *name, int namelen) +int attr_name_valid(const char *name, size_t namelen) { /* * Attribute name cannot begin with '-' and must consist of * characters from [-A-Za-z0-9_.]. */ if (namelen <= 0 || *name == '-') - return -1; + return 0; while (namelen--) { char ch = *name++; if (! (ch == '-' || ch == '.' || ch == '_' || ('0' <= ch && ch <= '9') || ('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z')) ) - return -1; + return 0; } - return 0; + return -1; +} + +void invalid_attr_name_message(struct strbuf *err, const char *name, int len) +{ + strbuf_addf(err, _("%.*s is not a valid attribute name"), + len, name); +} + +static void report_invalid_attr(const char *name, size_t len, + const char *src, int lineno) +{ + struct strbuf err = STRBUF_INIT; + invalid_attr_name_message(&err, name, len); + fprintf(stderr, "%s: %s:%d\n", err.buf, src, lineno); + strbuf_release(&err); } struct git_attr *git_attr_counted(const char *name, size_t len) @@ -90,7 +105,7 @@ struct git_attr *git_attr_counted(const char *name, size_t len) return a; } - if (invalid_attr_name(name, len)) + if (!attr_name_valid(name, len)) return NULL; FLEX_ALLOC_MEM(a, name, name, len); @@ -176,17 +191,15 @@ static const char *parse_attr(const char *src, int lineno, const char *cp, cp++; len--; } - if (invalid_attr_name(cp, len)) { - fprintf(stderr, - "%.*s is not a valid attribute name: %s:%d\n", - len, cp, src, lineno); + if (!attr_name_valid(cp, len)) { + report_invalid_attr(cp, len, src, lineno); return NULL; } } else { /* * As this function is always called twice, once with * e == NULL in the first pass and then e != NULL in - * the second pass, no need for invalid_attr_name() + * the second pass, no need for attr_name_valid() * check here. */ if (*cp == '-' || *cp == '!') { @@ -229,10 +242,8 @@ static struct match_attr *parse_attr_line(const char *line, const char *src, name += strlen(ATTRIBUTE_MACRO_PREFIX); name += strspn(name, blank); namelen = strcspn(name, blank); - if (invalid_attr_name(name, namelen)) { - fprintf(stderr, - "%.*s is not a valid attribute name: %s:%d\n", - namelen, name, src, lineno); + if (!attr_name_valid(name, namelen)) { + report_invalid_attr(name, namelen, src, lineno); goto fail_return; } } diff --git a/attr.h b/attr.h index bcedf92..40abc16 100644 --- a/attr.h +++ b/attr.h @@ -13,6 +13,9 @@ extern struct git_attr *git_attr(const char *); /* The same, but with counted string */ extern struct git_attr *git_attr_counted(const char *, size_t); +extern int attr_name_valid(const char *name, size_t namelen); +extern void invalid_attr_name_message(struct strbuf *, const char *, int); + /* Internal use */ extern const char git_attr__true[]; extern const char git_attr__false[]; -- 2.10.1.382.ga23ca1b.dirty