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usr / src / contrib / wpa / src / utils /

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📄 base64.c(4.52 KB)
📄 base64.h(653 B)
📄 bitfield.c(1.37 KB)
📄 bitfield.h(558 B)
📄 browser-android.c(2.62 KB)
📄 browser-system.c(2.39 KB)
📄 browser-wpadebug.c(3.14 KB)
📄 browser.c(5.93 KB)
📄 browser.h(451 B)
📄 build_config.h(1.38 KB)
📄 common.c(24.26 KB)
📄 common.h(14.84 KB)
📄 const_time.h(5.45 KB)
📄 crc32.c(3.7 KB)
📄 crc32.h(297 B)
📄 edit.c(20.21 KB)
📄 edit.h(612 B)
📄 edit_readline.c(3.78 KB)
📄 edit_simple.c(1.77 KB)
📄 eloop.c(32.23 KB)
📄 eloop.h(13.77 KB)
📄 eloop_win.c(15.17 KB)
📄 ext_password.c(2.02 KB)
📄 ext_password.h(855 B)
📄 ext_password_i.h(713 B)
📄 ext_password_test.c(1.72 KB)
📄 http-utils.h(1.71 KB)
📄 http_curl.c(44.53 KB)
📄 includes.h(1.09 KB)
📄 ip_addr.c(1.02 KB)
📄 ip_addr.h(608 B)
📄 json.c(12.54 KB)
📄 json.h(1.02 KB)
📄 list.h(2.4 KB)
📄 module_tests.h(438 B)
📄 os.h(19.54 KB)
📄 os_internal.c(8.66 KB)
📄 os_none.c(3.3 KB)
📄 os_unix.c(15.06 KB)
📄 os_win32.c(4.68 KB)
📄 pcsc_funcs.c(37.61 KB)
📄 pcsc_funcs.h(1.4 KB)
📄 platform.h(508 B)
📄 radiotap.c(12.25 KB)
📄 radiotap.h(10.67 KB)
📄 radiotap_iter.h(2.86 KB)
📄 state_machine.h(5.25 KB)
📄 trace.c(8.28 KB)
📄 trace.h(1.88 KB)
📄 utils_module_tests.c(28.14 KB)
📄 uuid.c(1.8 KB)
📄 uuid.h(439 B)
📄 wpa_debug.c(18.68 KB)
📄 wpa_debug.h(12.38 KB)
📄 wpabuf.c(7.44 KB)
📄 wpabuf.h(4.14 KB)
📄 xml-utils.c(9.29 KB)
📄 xml-utils.h(4.01 KB)
📄 xml_libxml2.c(9.07 KB)

Editing: uuid.c

/*
 * Universally Unique IDentifier (UUID)
 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "includes.h"

#include "common.h"
#include "crypto/sha256.h"
#include "uuid.h"

int uuid_str2bin(const char *str, u8 *bin)
{
	const char *pos;
	u8 *opos;

pos = str;
	opos = bin;

if (hexstr2bin(pos, opos, 4))
		return -1;
	pos += 8;
	opos += 4;

if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
		return -1;
	pos += 4;
	opos += 2;

if (*pos++ != '-' || hexstr2bin(pos, opos, 6))
		return -1;

return 0;
}

int uuid_bin2str(const u8 *bin, char *str, size_t max_len)
{
	int len;
	len = os_snprintf(str, max_len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
			  "%02x%02x-%02x%02x%02x%02x%02x%02x",
			  bin[0], bin[1], bin[2], bin[3],
			  bin[4], bin[5], bin[6], bin[7],
			  bin[8], bin[9], bin[10], bin[11],
			  bin[12], bin[13], bin[14], bin[15]);
	if (os_snprintf_error(max_len, len))
		return -1;
	return 0;
}

int is_nil_uuid(const u8 *uuid)
{
	int i;
	for (i = 0; i < UUID_LEN; i++)
		if (uuid[i])
			return 0;
	return 1;
}

int uuid_random(u8 *uuid)
{
	struct os_time t;
	u8 hash[SHA256_MAC_LEN];

/* Use HMAC-SHA256 and timestamp as context to avoid exposing direct
	 * os_get_random() output in the UUID field. */
	os_get_time(&t);
	if (os_get_random(uuid, UUID_LEN) < 0 ||
	    hmac_sha256(uuid, UUID_LEN, (const u8 *) &t, sizeof(t), hash) < 0)
		return -1;

os_memcpy(uuid, hash, UUID_LEN);

/* Version: 4 = random */
	uuid[6] = (4 << 4) | (uuid[6] & 0x0f);

/* Variant specified in RFC 4122 */
	uuid[8] = 0x80 | (uuid[8] & 0x3f);

return 0;
}

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Editing: uuid.c

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