Diff: src/port.c

Revision:

0:c4152c628df5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/port.c	Mon Nov 25 14:24:05 2019 +0000
@@ -0,0 +1,72 @@
+/* port.c 
+ *
+ * Copyright (C) 2014-2016 wolfSSL Inc.
+ *
+ * This file is part of wolfSSH.
+ *
+ * wolfSSH is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSH is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with wolfSSH.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+/*
+ * The port module wraps standard C library functions with macros to
+ * cover portablility issues when building in environments that rename
+ * those functions. This module also provides local versions of some
+ * standard C library functions that are missing on some platforms.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+    #include <config.h>
+#endif
+
+#include <stdio.h>
+#include <wolfssh/port.h>
+
+
+int wfopen(WFILE** f, const char* filename, const char* mode)
+{
+#ifdef USE_WINDOWS_API
+    return fopen_s(f, filename, mode) != 0;
+#else
+    if (f != NULL) {
+        *f = fopen(filename, mode);
+        return *f == NULL;
+    }
+    return 1;
+#endif
+}
+
+
+#ifndef WSTRING_USER
+
+char* wstrnstr(const char* s1, const char* s2, unsigned int n)
+{
+    unsigned int s2_len = (unsigned int)WSTRLEN(s2);
+
+    if (s2_len == 0)
+        return (char*)s1;
+
+    while (n >= s2_len && s1[0]) {
+        if (s1[0] == s2[0])
+            if (WMEMCMP(s1, s2, s2_len) == 0)
+                return (char*)s1;
+        s1++;
+        n--;
+    }
+
+    return NULL;
+}
+
+#endif /* WSTRING_USER */