+/*
+ * These are various re-implementations (wrapping the real ones) of
+ * string functions that MSVC consideres unsafe. We wrap these up and
+ * use the safe varations on MSVC.
+ */
+#ifdef _MSC_VER
+ static char **util_strerror_allocated() {
+ static char **data = NULL;
+ return data;
+ }
+
+ static void util_strerror_cleanup(void) {
+ size_t i;
+ char **data = util_strerror_allocated();
+ for (i = 0; i < vec_size(data); i++)
+ mem_d(data[i]);
+ vec_free(data);
+ }
+
+ const char *util_strerror(int num) {
+ char *allocated = NULL;
+ static bool install = false;
+ static size_t tries = 0;
+ char **vector = util_strerror_allocated();
+
+ /* try installing cleanup handler */
+ while (!install) {
+ if (tries == 32)
+ return "(unknown)";
+
+ install = !atexit(&util_strerror_cleanup);
+ tries ++;
+ }
+
+ allocated = (char*)mem_a(4096); /* A page must be enough */
+ strerror_s(allocated, 4096, num);
+
+ vec_push(vector, allocated);
+ return (const char *)allocated;
+ }
+
+ int util_snprintf(char *src, size_t bytes, const char *format, ...) {
+ int rt;
+ va_list va;
+ va_start(va, format);
+
+ rt = vsprintf_s(src, bytes, format, va);
+ va_end (va);
+
+ return rt;
+ }
+
+ char *util_strcat(char *dest, const char *src) {
+ strcat_s(dest, strlen(src), src);
+ return dest;
+ }
+
+ char *util_strncpy(char *dest, const char *src, size_t num) {
+ strncpy_s(dest, num, src, num);
+ return dest;
+ }
+#else
+ const char *util_strerror(int num) {
+ return strerror(num);
+ }
+
+ int util_snprintf(char *src, size_t bytes, const char *format, ...) {
+ int rt;
+ va_list va;
+ va_start(va, format);
+ rt = vsnprintf(src, bytes, format, va);
+ va_end (va);
+
+ return rt;
+ }
+
+ char *util_strcat(char *dest, const char *src) {
+ return strcat(dest, src);
+ }
+
+ char *util_strncpy(char *dest, const char *src, size_t num) {
+ return strncpy(dest, src, num);
+ }
+
+#endif /*! _MSC_VER */
+