wpa_supplicant: Initial Revision 0.8.X

Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date:   Thu Apr 21 20:41:01 2011 +0300

    Enable CONFIG_DRIVER_NL80211=y in the default configuration

    nl80211 should be preferred over WEXT with any recent Linux
    kernel version.

Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/utils/os_win32.c b/src/utils/os_win32.c
new file mode 100644
index 0000000..0740964
--- /dev/null
+++ b/src/utils/os_win32.c
@@ -0,0 +1,222 @@
+/*
+ * wpa_supplicant/hostapd / OS specific functions for Win32 systems
+ * Copyright (c) 2005-2006, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+#include <winsock2.h>
+#include <wincrypt.h>
+
+#include "os.h"
+
+void os_sleep(os_time_t sec, os_time_t usec)
+{
+	if (sec)
+		Sleep(sec * 1000);
+	if (usec)
+		Sleep(usec / 1000);
+}
+
+
+int os_get_time(struct os_time *t)
+{
+#define EPOCHFILETIME (116444736000000000ULL)
+	FILETIME ft;
+	LARGE_INTEGER li;
+	ULONGLONG tt;
+
+#ifdef _WIN32_WCE
+	SYSTEMTIME st;
+
+	GetSystemTime(&st);
+	SystemTimeToFileTime(&st, &ft);
+#else /* _WIN32_WCE */
+	GetSystemTimeAsFileTime(&ft);
+#endif /* _WIN32_WCE */
+	li.LowPart = ft.dwLowDateTime;
+	li.HighPart = ft.dwHighDateTime;
+	tt = (li.QuadPart - EPOCHFILETIME) / 10;
+	t->sec = (os_time_t) (tt / 1000000);
+	t->usec = (os_time_t) (tt % 1000000);
+
+	return 0;
+}
+
+
+int os_mktime(int year, int month, int day, int hour, int min, int sec,
+	      os_time_t *t)
+{
+	struct tm tm, *tm1;
+	time_t t_local, t1, t2;
+	os_time_t tz_offset;
+
+	if (year < 1970 || month < 1 || month > 12 || day < 1 || day > 31 ||
+	    hour < 0 || hour > 23 || min < 0 || min > 59 || sec < 0 ||
+	    sec > 60)
+		return -1;
+
+	memset(&tm, 0, sizeof(tm));
+	tm.tm_year = year - 1900;
+	tm.tm_mon = month - 1;
+	tm.tm_mday = day;
+	tm.tm_hour = hour;
+	tm.tm_min = min;
+	tm.tm_sec = sec;
+
+	t_local = mktime(&tm);
+
+	/* figure out offset to UTC */
+	tm1 = localtime(&t_local);
+	if (tm1) {
+		t1 = mktime(tm1);
+		tm1 = gmtime(&t_local);
+		if (tm1) {
+			t2 = mktime(tm1);
+			tz_offset = t2 - t1;
+		} else
+			tz_offset = 0;
+	} else
+		tz_offset = 0;
+
+	*t = (os_time_t) t_local - tz_offset;
+	return 0;
+}
+
+
+int os_daemonize(const char *pid_file)
+{
+	/* TODO */
+	return -1;
+}
+
+
+void os_daemonize_terminate(const char *pid_file)
+{
+}
+
+
+int os_get_random(unsigned char *buf, size_t len)
+{
+	HCRYPTPROV prov;
+	BOOL ret;
+
+	if (!CryptAcquireContext(&prov, NULL, NULL, PROV_RSA_FULL,
+				 CRYPT_VERIFYCONTEXT))
+		return -1;
+
+	ret = CryptGenRandom(prov, len, buf);
+	CryptReleaseContext(prov, 0);
+
+	return ret ? 0 : -1;
+}
+
+
+unsigned long os_random(void)
+{
+	return rand();
+}
+
+
+char * os_rel2abs_path(const char *rel_path)
+{
+	return _strdup(rel_path);
+}
+
+
+int os_program_init(void)
+{
+#ifdef CONFIG_NATIVE_WINDOWS
+	WSADATA wsaData;
+	if (WSAStartup(MAKEWORD(2, 0), &wsaData)) {
+		printf("Could not find a usable WinSock.dll\n");
+		return -1;
+	}
+#endif /* CONFIG_NATIVE_WINDOWS */
+	return 0;
+}
+
+
+void os_program_deinit(void)
+{
+#ifdef CONFIG_NATIVE_WINDOWS
+	WSACleanup();
+#endif /* CONFIG_NATIVE_WINDOWS */
+}
+
+
+int os_setenv(const char *name, const char *value, int overwrite)
+{
+	return -1;
+}
+
+
+int os_unsetenv(const char *name)
+{
+	return -1;
+}
+
+
+char * os_readfile(const char *name, size_t *len)
+{
+	FILE *f;
+	char *buf;
+
+	f = fopen(name, "rb");
+	if (f == NULL)
+		return NULL;
+
+	fseek(f, 0, SEEK_END);
+	*len = ftell(f);
+	fseek(f, 0, SEEK_SET);
+
+	buf = malloc(*len);
+	if (buf == NULL) {
+		fclose(f);
+		return NULL;
+	}
+
+	fread(buf, 1, *len, f);
+	fclose(f);
+
+	return buf;
+}
+
+
+void * os_zalloc(size_t size)
+{
+	return calloc(1, size);
+}
+
+
+size_t os_strlcpy(char *dest, const char *src, size_t siz)
+{
+	const char *s = src;
+	size_t left = siz;
+
+	if (left) {
+		/* Copy string up to the maximum size of the dest buffer */
+		while (--left != 0) {
+			if ((*dest++ = *s++) == '\0')
+				break;
+		}
+	}
+
+	if (left == 0) {
+		/* Not enough room for the string; force NUL-termination */
+		if (siz != 0)
+			*dest = '\0';
+		while (*s++)
+			; /* determine total src string length */
+	}
+
+	return s - src - 1;
+}