1 /* 2 * wpa_supplicant/hostapd / OS specific functions for Win32 systems 3 * Copyright (c) 2005-2006, Jouni Malinen <j (at) w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "includes.h" 10 #include <time.h> 11 #include <winsock2.h> 12 #include <wincrypt.h> 13 14 #include "os.h" 15 16 void os_sleep(os_time_t sec, os_time_t usec) 17 { 18 if (sec) 19 Sleep(sec * 1000); 20 if (usec) 21 Sleep(usec / 1000); 22 } 23 24 25 int os_get_time(struct os_time *t) 26 { 27 #define EPOCHFILETIME (116444736000000000ULL) 28 FILETIME ft; 29 LARGE_INTEGER li; 30 ULONGLONG tt; 31 32 #ifdef _WIN32_WCE 33 SYSTEMTIME st; 34 35 GetSystemTime(&st); 36 SystemTimeToFileTime(&st, &ft); 37 #else /* _WIN32_WCE */ 38 GetSystemTimeAsFileTime(&ft); 39 #endif /* _WIN32_WCE */ 40 li.LowPart = ft.dwLowDateTime; 41 li.HighPart = ft.dwHighDateTime; 42 tt = (li.QuadPart - EPOCHFILETIME) / 10; 43 t->sec = (os_time_t) (tt / 1000000); 44 t->usec = (os_time_t) (tt % 1000000); 45 46 return 0; 47 } 48 49 50 int os_get_reltime(struct os_reltime *t) 51 { 52 /* consider using performance counters or so instead */ 53 struct os_time now; 54 int res = os_get_time(&now); 55 t->sec = now.sec; 56 t->usec = now.usec; 57 return res; 58 } 59 60 61 int os_mktime(int year, int month, int day, int hour, int min, int sec, 62 os_time_t *t) 63 { 64 struct tm tm, *tm1; 65 time_t t_local, t1, t2; 66 os_time_t tz_offset; 67 68 if (year < 1970 || month < 1 || month > 12 || day < 1 || day > 31 || 69 hour < 0 || hour > 23 || min < 0 || min > 59 || sec < 0 || 70 sec > 60) 71 return -1; 72 73 memset(&tm, 0, sizeof(tm)); 74 tm.tm_year = year - 1900; 75 tm.tm_mon = month - 1; 76 tm.tm_mday = day; 77 tm.tm_hour = hour; 78 tm.tm_min = min; 79 tm.tm_sec = sec; 80 81 t_local = mktime(&tm); 82 83 /* figure out offset to UTC */ 84 tm1 = localtime(&t_local); 85 if (tm1) { 86 t1 = mktime(tm1); 87 tm1 = gmtime(&t_local); 88 if (tm1) { 89 t2 = mktime(tm1); 90 tz_offset = t2 - t1; 91 } else 92 tz_offset = 0; 93 } else 94 tz_offset = 0; 95 96 *t = (os_time_t) t_local - tz_offset; 97 return 0; 98 } 99 100 101 int os_gmtime(os_time_t t, struct os_tm *tm) 102 { 103 struct tm *tm2; 104 time_t t2 = t; 105 106 tm2 = gmtime(&t2); 107 if (tm2 == NULL) 108 return -1; 109 tm->sec = tm2->tm_sec; 110 tm->min = tm2->tm_min; 111 tm->hour = tm2->tm_hour; 112 tm->day = tm2->tm_mday; 113 tm->month = tm2->tm_mon + 1; 114 tm->year = tm2->tm_year + 1900; 115 return 0; 116 } 117 118 119 int os_daemonize(const char *pid_file) 120 { 121 /* TODO */ 122 return -1; 123 } 124 125 126 void os_daemonize_terminate(const char *pid_file) 127 { 128 } 129 130 131 int os_get_random(unsigned char *buf, size_t len) 132 { 133 HCRYPTPROV prov; 134 BOOL ret; 135 136 if (!CryptAcquireContext(&prov, NULL, NULL, PROV_RSA_FULL, 137 CRYPT_VERIFYCONTEXT)) 138 return -1; 139 140 ret = CryptGenRandom(prov, len, buf); 141 CryptReleaseContext(prov, 0); 142 143 return ret ? 0 : -1; 144 } 145 146 147 unsigned long os_random(void) 148 { 149 return rand(); 150 } 151 152 153 char * os_rel2abs_path(const char *rel_path) 154 { 155 return _strdup(rel_path); 156 } 157 158 159 int os_program_init(void) 160 { 161 #ifdef CONFIG_NATIVE_WINDOWS 162 WSADATA wsaData; 163 if (WSAStartup(MAKEWORD(2, 0), &wsaData)) { 164 printf("Could not find a usable WinSock.dll\n"); 165 return -1; 166 } 167 #endif /* CONFIG_NATIVE_WINDOWS */ 168 return 0; 169 } 170 171 172 void os_program_deinit(void) 173 { 174 #ifdef CONFIG_NATIVE_WINDOWS 175 WSACleanup(); 176 #endif /* CONFIG_NATIVE_WINDOWS */ 177 } 178 179 180 int os_setenv(const char *name, const char *value, int overwrite) 181 { 182 return -1; 183 } 184 185 186 int os_unsetenv(const char *name) 187 { 188 return -1; 189 } 190 191 192 char * os_readfile(const char *name, size_t *len) 193 { 194 FILE *f; 195 char *buf; 196 197 f = fopen(name, "rb"); 198 if (f == NULL) 199 return NULL; 200 201 fseek(f, 0, SEEK_END); 202 *len = ftell(f); 203 fseek(f, 0, SEEK_SET); 204 205 buf = malloc(*len); 206 if (buf == NULL) { 207 fclose(f); 208 return NULL; 209 } 210 211 fread(buf, 1, *len, f); 212 fclose(f); 213 214 return buf; 215 } 216 217 218 void * os_zalloc(size_t size) 219 { 220 return calloc(1, size); 221 } 222 223 224 size_t os_strlcpy(char *dest, const char *src, size_t siz) 225 { 226 const char *s = src; 227 size_t left = siz; 228 229 if (left) { 230 /* Copy string up to the maximum size of the dest buffer */ 231 while (--left != 0) { 232 if ((*dest++ = *s++) == '\0') 233 break; 234 } 235 } 236 237 if (left == 0) { 238 /* Not enough room for the string; force NUL-termination */ 239 if (siz != 0) 240 *dest = '\0'; 241 while (*s++) 242 ; /* determine total src string length */ 243 } 244 245 return s - src - 1; 246 } 247 248 249 int os_memcmp_const(const void *a, const void *b, size_t len) 250 { 251 const u8 *aa = a; 252 const u8 *bb = b; 253 size_t i; 254 u8 res; 255 256 for (res = 0, i = 0; i < len; i++) 257 res |= aa[i] ^ bb[i]; 258 259 return res; 260 } 261 262 263 int os_exec(const char *program, const char *arg, int wait_completion) 264 { 265 return -1; 266 } 267
