From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.90_1) id 1rSLQK-0001oR-3Y for mharc-qemu-trivial@gnu.org; Tue, 23 Jan 2024 13:23:00 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rSLQI-0001mc-5A for qemu-trivial@nongnu.org; Tue, 23 Jan 2024 13:22:58 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rSLQG-00073Z-9p for qemu-trivial@nongnu.org; Tue, 23 Jan 2024 13:22:57 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706034175; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UYQYXjBMIv63foEeKnvJ2XN6eTLpBDzTxdyw6lauCsA=; b=RZFKAYuGf+Gf4O9nRxb5XjOts1hD+W4J3X0p9U+gc7tOl9vUn6/rSTe3oKoB4AJywmgjUV BKT8dQwJ7RKzWbdvM+kM4q0NMqcKpf0yEAhgObsi517zgu3eYV0TUmeMBeS46nooUl/KZb o0BMHPAITMbQvTfjYSFUySElacuwuXg= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-653-RIl6msnhOM2sCsF4Sfmhog-1; Tue, 23 Jan 2024 13:22:52 -0500 X-MC-Unique: RIl6msnhOM2sCsF4Sfmhog-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 113BE862DC2; Tue, 23 Jan 2024 18:22:52 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.192.89]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3EA012166B32; Tue, 23 Jan 2024 18:22:49 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Paolo Bonzini Cc: Stefan Weil , qemu-trivial@nongnu.org, qemu-block@nongnu.org Subject: [PATCH v2 1/4] util/uri: Remove uri_string_unescape() Date: Tue, 23 Jan 2024 19:22:44 +0100 Message-ID: <20240123182247.432642-2-thuth@redhat.com> In-Reply-To: <20240123182247.432642-1-thuth@redhat.com> References: <20240123182247.432642-1-thuth@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.327, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-trivial@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jan 2024 18:22:58 -0000 uri_string_unescape() basically does the same as the glib function g_uri_unescape_segment(). So we can get rid of our implementation completely by simply using the glib function instead. Suggested-by: Stefan Weil [g_uri_unescape_string()] Suggested-by: Paolo Bonzini [g_uri_unescape_segment()] Signed-off-by: Thomas Huth --- include/qemu/uri.h | 1 - util/uri.c | 97 ++++++---------------------------------------- 2 files changed, 11 insertions(+), 87 deletions(-) diff --git a/include/qemu/uri.h b/include/qemu/uri.h index 1855b764f2..f0722b75da 100644 --- a/include/qemu/uri.h +++ b/include/qemu/uri.h @@ -79,7 +79,6 @@ URI *uri_parse_raw(const char *str, int raw); int uri_parse_into(URI *uri, const char *str); char *uri_to_string(URI *uri); char *uri_string_escape(const char *str, const char *list); -char *uri_string_unescape(const char *str, int len, char *target); void uri_free(URI *uri); /* Single web service query parameter 'name=value'. */ diff --git a/util/uri.c b/util/uri.c index dcb3305236..fb7823a43c 100644 --- a/util/uri.c +++ b/util/uri.c @@ -267,7 +267,7 @@ static int rfc3986_parse_fragment(URI *uri, const char **str) if (uri->cleanup & 2) { uri->fragment = g_strndup(*str, cur - *str); } else { - uri->fragment = uri_string_unescape(*str, cur - *str, NULL); + uri->fragment = g_uri_unescape_segment(*str, cur, NULL); } } *str = cur; @@ -368,7 +368,7 @@ static int rfc3986_parse_user_info(URI *uri, const char **str) if (uri->cleanup & 2) { uri->user = g_strndup(*str, cur - *str); } else { - uri->user = uri_string_unescape(*str, cur - *str, NULL); + uri->user = g_uri_unescape_segment(*str, cur, NULL); } } *str = cur; @@ -496,7 +496,7 @@ found: if (uri->cleanup & 2) { uri->server = g_strndup(host, cur - host); } else { - uri->server = uri_string_unescape(host, cur - host, NULL); + uri->server = g_uri_unescape_segment(host, cur, NULL); } } else { uri->server = NULL; @@ -614,7 +614,7 @@ static int rfc3986_parse_path_ab_empty(URI *uri, const char **str) if (uri->cleanup & 2) { uri->path = g_strndup(*str, cur - *str); } else { - uri->path = uri_string_unescape(*str, cur - *str, NULL); + uri->path = g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path = NULL; @@ -663,7 +663,7 @@ static int rfc3986_parse_path_absolute(URI *uri, const char **str) if (uri->cleanup & 2) { uri->path = g_strndup(*str, cur - *str); } else { - uri->path = uri_string_unescape(*str, cur - *str, NULL); + uri->path = g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path = NULL; @@ -709,7 +709,7 @@ static int rfc3986_parse_path_rootless(URI *uri, const char **str) if (uri->cleanup & 2) { uri->path = g_strndup(*str, cur - *str); } else { - uri->path = uri_string_unescape(*str, cur - *str, NULL); + uri->path = g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path = NULL; @@ -755,7 +755,7 @@ static int rfc3986_parse_path_no_scheme(URI *uri, const char **str) if (uri->cleanup & 2) { uri->path = g_strndup(*str, cur - *str); } else { - uri->path = uri_string_unescape(*str, cur - *str, NULL); + uri->path = g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path = NULL; @@ -1561,81 +1561,6 @@ done_cd: return 0; } -static int is_hex(char c) -{ - if (((c >= '0') && (c <= '9')) || ((c >= 'a') && (c <= 'f')) || - ((c >= 'A') && (c <= 'F'))) { - return 1; - } - return 0; -} - -/** - * uri_string_unescape: - * @str: the string to unescape - * @len: the length in bytes to unescape (or <= 0 to indicate full string) - * @target: optional destination buffer - * - * Unescaping routine, but does not check that the string is an URI. The - * output is a direct unsigned char translation of %XX values (no encoding) - * Note that the length of the result can only be smaller or same size as - * the input string. - * - * Returns a copy of the string, but unescaped, will return NULL only in case - * of error - */ -char *uri_string_unescape(const char *str, int len, char *target) -{ - char *ret, *out; - const char *in; - - if (str == NULL) { - return NULL; - } - if (len <= 0) { - len = strlen(str); - } - if (len < 0) { - return NULL; - } - - if (target == NULL) { - ret = g_malloc(len + 1); - } else { - ret = target; - } - in = str; - out = ret; - while (len > 0) { - if ((len > 2) && (*in == '%') && (is_hex(in[1])) && (is_hex(in[2]))) { - in++; - if ((*in >= '0') && (*in <= '9')) { - *out = (*in - '0'); - } else if ((*in >= 'a') && (*in <= 'f')) { - *out = (*in - 'a') + 10; - } else if ((*in >= 'A') && (*in <= 'F')) { - *out = (*in - 'A') + 10; - } - in++; - if ((*in >= '0') && (*in <= '9')) { - *out = *out * 16 + (*in - '0'); - } else if ((*in >= 'a') && (*in <= 'f')) { - *out = *out * 16 + (*in - 'a') + 10; - } else if ((*in >= 'A') && (*in <= 'F')) { - *out = *out * 16 + (*in - 'A') + 10; - } - in++; - len -= 3; - out++; - } else { - *out++ = *in++; - len--; - } - } - *out = 0; - return ret; -} - /** * uri_string_escape: * @str: string to escape @@ -2274,14 +2199,14 @@ struct QueryParams *query_params_parse(const char *query) * and consistent with CGI.pm we assume value is "". */ else if (!eq) { - name = uri_string_unescape(query, end - query, NULL); + name = g_uri_unescape_segment(query, end, NULL); value = NULL; } /* Or if we have "name=" here (works around annoying * problem when calling uri_string_unescape with len = 0). */ else if (eq + 1 == end) { - name = uri_string_unescape(query, eq - query, NULL); + name = g_uri_unescape_segment(query, eq, NULL); value = g_new0(char, 1); } /* If the '=' character is at the beginning then we have @@ -2293,8 +2218,8 @@ struct QueryParams *query_params_parse(const char *query) /* Otherwise it's "name=value". */ else { - name = uri_string_unescape(query, eq - query, NULL); - value = uri_string_unescape(eq + 1, end - (eq + 1), NULL); + name = g_uri_unescape_segment(query, eq, NULL); + value = g_uri_unescape_segment(eq + 1, end, NULL); } /* Append to the parameter set. */ -- 2.43.0