GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
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+/*
+ * 
+ */
+
+#include "securecutil.h"
+
+SECUREC_INLINE errno_t SecDoCpyW(wchar_t *strDest, size_t destMax, const wchar_t *strSrc)
+{
+    size_t srcStrLen;
+    SECUREC_CALC_WSTR_LEN(strSrc, destMax, &srcStrLen);
+
+    if (srcStrLen == destMax) {
+        strDest[0] = L'\0';
+        SECUREC_ERROR_INVALID_RANGE("wcscpy_s");
+        return ERANGE_AND_RESET;
+    }
+    if (strDest == strSrc) {
+        return EOK;
+    }
+
+    if (SECUREC_STRING_NO_OVERLAP(strDest, strSrc, srcStrLen)) {
+        /* Performance optimization, srcStrLen is single character length  include '\0' */
+        SECUREC_MEMCPY_WARP_OPT(strDest, strSrc, (srcStrLen + 1) * sizeof(wchar_t));
+        return EOK;
+    } else {
+        strDest[0] = L'\0';
+        SECUREC_ERROR_BUFFER_OVERLAP("wcscpy_s");
+        return EOVERLAP_AND_RESET;
+    }
+}
+
+/*
+ * <FUNCTION DESCRIPTION>
+ *   The wcscpy_s function copies the wide string pointed to by strSrc
+ *   (including theterminating null wide character) into the array pointed to by strDest
+
+ * <INPUT PARAMETERS>
+ *    strDest               Destination string buffer
+ *    destMax               Size of the destination string buffer.
+ *    strSrc                Null-terminated source string buffer.
+ *
+ * <OUTPUT PARAMETERS>
+ *    strDest               is updated.
+ *
+ * <RETURN VALUE>
+ *    EOK                   Success
+ *    EINVAL                strDest is  NULL and destMax != 0 and destMax <= SECUREC_WCHAR_STRING_MAX_LEN
+ *    EINVAL_AND_RESET      strDest != NULL and strSrc is NULLL and destMax != 0
+ *                          and destMax <= SECUREC_WCHAR_STRING_MAX_LEN
+ *    ERANGE                destMax > SECUREC_WCHAR_STRING_MAX_LEN or destMax is 0
+ *    ERANGE_AND_RESET      destMax <= length of strSrc and strDest != strSrc
+ *                          and strDest != NULL and strSrc != NULL and destMax != 0
+ *                          and destMax <= SECUREC_WCHAR_STRING_MAX_LEN and not overlap
+ *    EOVERLAP_AND_RESET    dest buffer and source buffer are overlapped and destMax != 0
+ *                          and destMax <= SECUREC_WCHAR_STRING_MAX_LEN
+ *                          and strDest != NULL and strSrc !=NULL and strDest != strSrc
+ *
+ *    If there is a runtime-constraint violation, strDest[0] will be set to the '\0' when strDest and destMax valid
+ */
+errno_t wcscpy_s(wchar_t *strDest, size_t destMax, const wchar_t *strSrc)
+{
+    if (destMax == 0 || destMax > SECUREC_WCHAR_STRING_MAX_LEN) {
+        SECUREC_ERROR_INVALID_RANGE("wcscpy_s");
+        return ERANGE;
+    }
+    if (strDest == NULL || strSrc == NULL) {
+        SECUREC_ERROR_INVALID_PARAMTER("wcscpy_s");
+        if (strDest != NULL) {
+            strDest[0] = L'\0';
+            return EINVAL_AND_RESET;
+        }
+        return EINVAL;
+    }
+    return SecDoCpyW(strDest, destMax, strSrc);
+}
+