#endif /* CONFIG_NATIVE_WINDOWS */
+void printf_encode(char *txt, size_t maxlen, const u8 *data, size_t len)
+{
+ char *end = txt + maxlen;
+ size_t i;
+
+ for (i = 0; i < len; i++) {
+ if (txt + 4 > end)
+ break;
+
+ switch (data[i]) {
+ case '\"':
+ *txt++ = '\\';
+ *txt++ = '\"';
+ break;
+ case '\\':
+ *txt++ = '\\';
+ *txt++ = '\\';
+ break;
+ case '\e':
+ *txt++ = '\\';
+ *txt++ = 'e';
+ break;
+ case '\n':
+ *txt++ = '\\';
+ *txt++ = 'n';
+ break;
+ case '\r':
+ *txt++ = '\\';
+ *txt++ = 'r';
+ break;
+ case '\t':
+ *txt++ = '\\';
+ *txt++ = 't';
+ break;
+ default:
+ if (data[i] >= 32 && data[i] <= 127) {
+ *txt++ = data[i];
+ } else {
+ txt += os_snprintf(txt, end - txt, "\\x%02x",
+ data[i]);
+ }
+ break;
+ }
+ }
+
+ *txt = '\0';
+}
+
+
+size_t printf_decode(u8 *buf, size_t maxlen, const char *str)
+{
+ const char *pos = str;
+ size_t len = 0;
+ int val;
+
+ while (*pos) {
+ if (len == maxlen)
+ break;
+ switch (*pos) {
+ case '\\':
+ pos++;
+ switch (*pos) {
+ case '\\':
+ buf[len++] = '\\';
+ pos++;
+ break;
+ case '"':
+ buf[len++] = '"';
+ pos++;
+ break;
+ case 'n':
+ buf[len++] = '\n';
+ pos++;
+ break;
+ case 'r':
+ buf[len++] = '\r';
+ pos++;
+ break;
+ case 't':
+ buf[len++] = '\t';
+ pos++;
+ break;
+ case 'e':
+ buf[len++] = '\e';
+ pos++;
+ break;
+ case 'x':
+ pos++;
+ val = hex2byte(pos);
+ if (val < 0) {
+ val = hex2num(*pos);
+ if (val < 0)
+ break;
+ buf[len++] = val;
+ pos++;
+ } else {
+ buf[len++] = val;
+ pos += 2;
+ }
+ break;
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ val = *pos++ - '0';
+ if (*pos >= '0' && *pos <= '7')
+ val = val * 8 + (*pos++ - '0');
+ if (*pos >= '0' && *pos <= '7')
+ val = val * 8 + (*pos++ - '0');
+ buf[len++] = val;
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ buf[len++] = *pos++;
+ break;
+ }
+ }
+
+ return len;
+}
+
+
/**
* wpa_ssid_txt - Convert SSID to a printable string
* @ssid: SSID (32-octet string)
--- /dev/null
+/*
+ * printf format routines - test program
+ * Copyright (c) 2012, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+#include "utils/os.h"
+#include "utils/common.h"
+
+
+struct test_data {
+ u8 *data;
+ size_t len;
+ char *encoded;
+};
+
+static const struct test_data tests[] = {
+ { (u8 *) "abcde", 5, "abcde" },
+ { (u8 *) "a\0b\nc\ed\re\tf", 11, "a\\0b\\nc\\ed\\re\\tf" },
+ { (u8 *) "\x00\x31\x00\x32\x00\x39", 6, "\\x001\\0002\\09" },
+ { (u8 *) "\n\n\n", 3, "\n\12\x0a" },
+ { (u8 *) "\303\245\303\244\303\266\303\205\303\204\303\226", 12,
+ "\\xc3\\xa5\xc3\\xa4\\xc3\\xb6\\xc3\\x85\\xc3\\x84\\xc3\\x96" },
+ { (u8 *) "\303\245\303\244\303\266\303\205\303\204\303\226", 12,
+ "\\303\\245\\303\\244\\303\\266\\303\\205\\303\\204\\303\\226" },
+ { (u8 *) "\xe5\xe4\xf6\xc5\xc4\xd6", 6,
+ "\\xe5\\xe4\\xf6\\xc5\\xc4\\xd6" },
+ { NULL, 0, NULL }
+};
+
+
+static void print_hex(const u8 *data, size_t len)
+{
+ size_t i;
+ for (i = 0; i < len; i++)
+ printf(" %02x", data[i]);
+}
+
+
+int main(int argc, char *argv[])
+{
+ int i;
+ size_t binlen;
+ char buf[100];
+ u8 bin[100];
+ int errors = 0;
+
+ for (i = 0; tests[i].data; i++) {
+ const struct test_data *test = &tests[i];
+ printf("%d:", i);
+ print_hex(test->data, test->len);
+ printf_encode(buf, sizeof(buf), test->data, test->len);
+ printf(" -> \"%s\"\n", buf);
+
+ binlen = printf_decode(bin, sizeof(bin), buf);
+ if (binlen != test->len ||
+ os_memcmp(bin, test->data, binlen) != 0) {
+ printf("Error in decoding#1:");
+ print_hex(bin, binlen);
+ printf("\n");
+ errors++;
+ }
+
+ binlen = printf_decode(bin, sizeof(bin), test->encoded);
+ if (binlen != test->len ||
+ os_memcmp(bin, test->data, binlen) != 0) {
+ printf("Error in decoding#2:");
+ print_hex(bin, binlen);
+ printf("\n");
+ errors++;
+ }
+ }
+
+ if (errors) {
+ printf("%d test(s) failed\n", errors);
+ return -1;
+ }
+
+ return 0;
+}