From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 5A3978DA9 for ; Wed, 28 Oct 2015 18:11:31 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga103.fm.intel.com with ESMTP; 28 Oct 2015 10:11:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,210,1444719600"; d="scan'208";a="837261358" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga002.jf.intel.com with ESMTP; 28 Oct 2015 10:11:28 -0700 Received: from sivswdev02.ir.intel.com (sivswdev02.ir.intel.com [10.237.217.46]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id t9SHBRQo002836; Wed, 28 Oct 2015 17:11:27 GMT Received: from sivswdev02.ir.intel.com (localhost [127.0.0.1]) by sivswdev02.ir.intel.com with ESMTP id t9SHBR1c022471; Wed, 28 Oct 2015 17:11:27 GMT Received: (from fanzhan2@localhost) by sivswdev02.ir.intel.com with id t9SHBRTj022467; Wed, 28 Oct 2015 17:11:27 GMT From: roy.fan.zhang@intel.com To: dev@dpdk.org Date: Wed, 28 Oct 2015 17:11:20 +0000 Message-Id: <1446052282-22391-6-git-send-email-roy.fan.zhang@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1446052282-22391-1-git-send-email-roy.fan.zhang@intel.com> References: <1446052282-22391-1-git-send-email-roy.fan.zhang@intel.com> Subject: [dpdk-dev] [PATCH v4 5/7] example/ip_pipeline: add parse_hex_string for internal use X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Oct 2015 17:11:31 -0000 From: Fan Zhang This patch adds parse_hex_string function to parse hex string to uint8_t array. Signed-off-by: Fan Zhang --- examples/ip_pipeline/config_parse.c | 52 +++++++++++++++++++++++++++++++++++++ examples/ip_pipeline/pipeline_be.h | 4 +++ 2 files changed, 56 insertions(+) diff --git a/examples/ip_pipeline/config_parse.c b/examples/ip_pipeline/config_parse.c index c9b78f9..ab7c518 100644 --- a/examples/ip_pipeline/config_parse.c +++ b/examples/ip_pipeline/config_parse.c @@ -455,6 +455,58 @@ parse_pipeline_core(uint32_t *socket, return 0; } +static uint32_t +get_hex_val(char c) +{ + switch (c) { + case '0': case '1': case '2': case '3': case '4': case '5': + case '6': case '7': case '8': case '9': + return c - '0'; + case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': + return c - 'A' + 10; + case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': + return c - 'a' + 10; + default: + return 0; + } +} + +int +parse_hex_string(char *src, uint8_t *dst, uint32_t *size) +{ + char *c; + uint32_t len, i; + + /* Check input parameters */ + if ((src == NULL) || + (dst == NULL) || + (size == NULL) || + (*size == 0)) + return -1; + + len = strlen(src); + if (((len & 3) != 0) || + (len > (*size) * 2)) + return -1; + *size = len / 2; + + for (c = src; *c != 0; c++) { + if ((((*c) >= '0') && ((*c) <= '9')) || + (((*c) >= 'A') && ((*c) <= 'F')) || + (((*c) >= 'a') && ((*c) <= 'f'))) + continue; + + return -1; + } + + /* Convert chars to bytes */ + for (i = 0; i < *size; i++) + dst[i] = get_hex_val(src[2 * i]) * 16 + + get_hex_val(src[2 * i + 1]); + + return 0; +} + static size_t skip_digits(const char *src) { diff --git a/examples/ip_pipeline/pipeline_be.h b/examples/ip_pipeline/pipeline_be.h index 51f1e4f..2e46440 100644 --- a/examples/ip_pipeline/pipeline_be.h +++ b/examples/ip_pipeline/pipeline_be.h @@ -253,4 +253,8 @@ struct pipeline_be_ops { pipeline_be_op_track f_track; }; +/* Parse hex string to uint8_t array */ +int +parse_hex_string(char *src, uint8_t *dst, uint32_t *size); + #endif -- 2.1.0