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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Jasvinder Singh <jasvinder.singh@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 6/8] example/ip_pipeline: add parse_hex_string for internal use
Date: Mon, 19 Oct 2015 15:49:32 +0200	[thread overview]
Message-ID: <2304122.ekIElQmNCJ@xps13> (raw)
In-Reply-To: <1444744652-573-7-git-send-email-jasvinder.singh@intel.com>

2015-10-13 14:57, Jasvinder Singh:
> From: Fan Zhang <roy.fan.zhang@intel.com>
> +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;
> +}

Why not use strtol()?

  reply	other threads:[~2015-10-19 13:50 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-25 22:33 [dpdk-dev] [PATCH 0/8] librte_table: add key_mask parameter to 8-byte key roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 1/8] librte_table: add key_mask parameter to 8-byte key hash parameters roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 2/8] librte_table: add key_mask parameter to 16-byte " roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 3/8] librte_table: add 16 byte hash table operations with computed lookup roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 4/8] app/test: modify app/test_table_combined and app/test_table_tables roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 5/8] app/test-pipeline: modify pipeline test roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 6/8] example/ip_pipeline: add parse_hex_string for internal use roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 7/8] example/ip_pipeline/pipeline: update flow_classification pipeline roy.fan.zhang
2015-09-25 22:33 ` [dpdk-dev] [PATCH 8/8] librte_table: modify release notes and deprecation notice roy.fan.zhang
2015-10-12 14:24   ` Thomas Monjalon
2015-10-12 16:30     ` Mcnamara, John
2015-10-13 13:57       ` [dpdk-dev] [PATCH v2 0/8] librte_table: add key_mask parameter to 8-byte key Jasvinder Singh
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 1/8] librte_table: add key_mask parameter to 8-byte key hash parameters Jasvinder Singh
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 2/8] librte_table: add key_mask parameter to 16-byte " Jasvinder Singh
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 3/8] librte_table: add 16 byte hash table operations with computed lookup Jasvinder Singh
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 4/8] app/test: modify app/test_table_combined and app/test_table_tables Jasvinder Singh
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 5/8] app/test-pipeline: modify pipeline test Jasvinder Singh
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 6/8] example/ip_pipeline: add parse_hex_string for internal use Jasvinder Singh
2015-10-19 13:49           ` Thomas Monjalon [this message]
2015-10-20 14:31             ` Dumitrescu, Cristian
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 7/8] example/ip_pipeline/pipeline: update flow_classification pipeline Jasvinder Singh
2015-10-19 13:57           ` Thomas Monjalon
2015-10-13 13:57         ` [dpdk-dev] [PATCH v2 8/8] librte_table: modify release notes and deprecation notice Jasvinder Singh
2015-10-21 12:18         ` [dpdk-dev] [PATCH v3 0/6] librte_table: add key_mask parameter to hash table parameter structure Jasvinder Singh
2015-10-21 12:18           ` [dpdk-dev] [PATCH v3 1/6] librte_table: add key_mask parameter to 8- and 16-bytes key hash parameters Jasvinder Singh
2015-10-21 12:18           ` [dpdk-dev] [PATCH v3 2/6] librte_table: add 16 byte hash table operations with computed lookup Jasvinder Singh
2015-10-21 12:18           ` [dpdk-dev] [PATCH v3 3/6] app/test: modify app/test_table_combined and app/test_table_tables Jasvinder Singh
2015-10-21 12:18           ` [dpdk-dev] [PATCH v3 4/6] app/test-pipeline: modify pipeline test Jasvinder Singh
2015-10-21 12:18           ` [dpdk-dev] [PATCH v3 5/6] example/ip_pipeline: add parse_hex_string for internal use Jasvinder Singh
2015-10-21 12:18           ` [dpdk-dev] [PATCH v3 6/6] example/ip_pipeline/pipeline: update flow_classification pipeline Jasvinder Singh
2015-10-19 13:31       ` [dpdk-dev] [PATCH 8/8] librte_table: modify release notes and deprecation notice Thomas Monjalon
2015-09-28 20:07 ` [dpdk-dev] [PATCH 0/8] librte_table: add key_mask parameter to 8-byte key Dumitrescu, Cristian

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