update qcloud sdk

1. iot-hub sdk update to 3.2.0
2. iot-explorer update to 3.1.1

components/connectivity/qcloud-iot-hub-sdk/3rdparty/sdk_src/utils/utils_base64.c

@@ -0,0 +1,178 @@
+/*
+ * Tencent is pleased to support the open source community by making IoT Hub available.
+ * Copyright (C) 2018-2020 THL A29 Limited, a Tencent company. All rights reserved.
+
+ * Licensed under the MIT License (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://opensource.org/licenses/MIT
+
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is
+ * distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "utils_base64.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+
+static const unsigned char base64_enc_map[64] = {
+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
+    'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
+    's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'};
+
+static const unsigned char base64_dec_map[128] = {
+    127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+    127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 62,
+    127, 127, 127, 63,  52,  53,  54,  55,  56,  57,  58,  59,  60,  61,  127, 127, 127, 64,  127, 127, 127, 0,
+    1,   2,   3,   4,   5,   6,   7,   8,   9,   10,  11,  12,  13,  14,  15,  16,  17,  18,  19,  20,  21,  22,
+    23,  24,  25,  127, 127, 127, 127, 127, 127, 26,  27,  28,  29,  30,  31,  32,  33,  34,  35,  36,  37,  38,
+    39,  40,  41,  42,  43,  44,  45,  46,  47,  48,  49,  50,  51,  127, 127, 127, 127, 127};
+
+#define BASE64_SIZE_T_MAX ((size_t)-1) /* SIZE_T_MAX is not standard */
+
+int qcloud_iot_utils_base64encode(unsigned char *dst, size_t dlen, size_t *olen, const unsigned char *src, size_t slen)
+{
+    size_t         i, n;
+    unsigned char *p;
+
+    if (slen == 0) {
+        *olen = 0;
+        return (0);
+    }
+
+    n = slen / 3 + (slen % 3 != 0);
+
+    if (n > (BASE64_SIZE_T_MAX - 1) / 4) {
+        *olen = BASE64_SIZE_T_MAX;
+        return (QCLOUD_ERR_FAILURE);
+    }
+
+    n *= 4;
+
+    if ((dlen < n + 1) || (NULL == dst)) {
+        *olen = n + 1;
+        return (QCLOUD_ERR_FAILURE);
+    }
+
+    n = (slen / 3) * 3;
+
+    int C1, C2, C3;
+    for (i = 0, p = dst; i < n; i += 3) {
+        C1 = *src++;
+        C2 = *src++;
+        C3 = *src++;
+
+        *p++ = base64_enc_map[(C1 >> 2) & 0x3F];
+        *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
+        *p++ = base64_enc_map[(((C2 & 15) << 2) + (C3 >> 6)) & 0x3F];
+        *p++ = base64_enc_map[C3 & 0x3F];
+    }
+
+    if (i < slen) {
+        C1 = *src++;
+        C2 = ((i + 1) < slen) ? *src++ : 0;
+
+        *p++ = base64_enc_map[(C1 >> 2) & 0x3F];
+        *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
+
+        if ((i + 1) < slen)
+            *p++ = base64_enc_map[((C2 & 15) << 2) & 0x3F];
+        else
+            *p++ = '=';
+
+        *p++ = '=';
+    }
+
+    *olen = p - dst;
+    *p    = 0;
+
+    return (0);
+}
+
+int qcloud_iot_utils_base64decode(unsigned char *dst, size_t dlen, size_t *olen, const unsigned char *src, size_t slen)
+{
+    size_t         i, n;
+    uint32_t       j, x;
+    unsigned char *p;
+
+    /* First pass: check for validity and get output length */
+    for (i = n = j = 0; i < slen; i++) {
+        /* Skip spaces before checking for EOL */
+        x = 0;
+        while (i < slen && src[i] == ' ') {
+            ++i;
+            ++x;
+        }
+
+        /* Spaces at end of buffer are OK */
+        if (i == slen)
+            break;
+
+        if ((slen - i) >= 2 && src[i] == '\r' && src[i + 1] == '\n')
+            continue;
+
+        if (src[i] == '\n')
+            continue;
+
+        /* Space inside a line is an error */
+        if (x != 0)
+            return (QCLOUD_ERR_FAILURE);
+
+        if (src[i] == '=' && ++j > 2)
+            return (QCLOUD_ERR_FAILURE);
+
+        if (src[i] > 127 || base64_dec_map[src[i]] == 127)
+            return (QCLOUD_ERR_FAILURE);
+
+        if (base64_dec_map[src[i]] < 64 && j != 0)
+            return (QCLOUD_ERR_FAILURE);
+
+        n++;
+    }
+
+    if (n == 0) {
+        *olen = 0;
+        return (0);
+    }
+
+    n = ((n * 6) + 7) >> 3;
+    n -= j;
+
+    if (dst == NULL || dlen < n) {
+        *olen = n;
+        return (QCLOUD_ERR_FAILURE);
+    }
+
+    for (j = 3, n = x = 0, p = dst; i > 0; i--, src++) {
+        if (*src == '\r' || *src == '\n' || *src == ' ')
+            continue;
+
+        j -= (base64_dec_map[*src] == 64);
+        x = (x << 6) | (base64_dec_map[*src] & 0x3F);
+
+        if (++n == 4) {
+            n = 0;
+            if (j > 0)
+                *p++ = (unsigned char)(x >> 16);
+            if (j > 1)
+                *p++ = (unsigned char)(x >> 8);
+            if (j > 2)
+                *p++ = (unsigned char)(x);
+        }
+    }
+
+    *olen = p - dst;
+
+    return (0);
+}
+
+#ifdef __cplusplus
+}
+#endif