new trunk

git-svn-id: svn://svn.code.sf.net/p/axtls/code/trunk@78 9a5d90b5-6617-0410-8a86-bb477d3ed2e3

ssl/os_port.c

@@ -0,0 +1,142 @@
+/*
+ *  Copyright(C) 2006 Cameron Rich
+ *
+ *  This library is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This library 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/**
+ * @file os_port.c
+ *
+ * OS specific functions.
+ */
+#include <time.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdarg.h>
+#include "os_port.h"
+
+#ifdef WIN32
+/**
+ * gettimeofday() not in Win32 
+ */
+EXP_FUNC void STDCALL gettimeofday(struct timeval* t, void* timezone)
+{       
+#if defined(_WIN32_WCE)
+    t->tv_sec = time(NULL);
+    t->tv_usec = 0;                         /* 1sec precision only */ 
+#else
+    struct _timeb timebuffer;
+    _ftime(&timebuffer);
+    t->tv_sec = (long)timebuffer.time;
+    t->tv_usec = 1000 * timebuffer.millitm; /* 1ms precision */
+#endif
+}
+
+/**
+ * strcasecmp() not in Win32
+ */
+EXP_FUNC int STDCALL strcasecmp(const char *s1, const char *s2)
+{
+    while (tolower(*s1) == tolower(*s2++))
+    {
+        if (*s1++ == '\0')
+        {
+            return 0;
+        }
+    }
+
+    return *(unsigned char *)s1 - *(unsigned char *)(s2 - 1);
+}
+
+#endif
+
+#undef malloc
+#undef realloc
+#undef calloc
+#undef open
+#undef fopen
+
+static const char * out_of_mem_str = "out of memory";
+static const char * file_open_str = "Could not open file \"%s\"";
+
+/* 
+ * Some functions that call display some error trace and then call abort().
+ * This just makes life much easier on embedded systems, since we're 
+ * suffering major trauma...
+ */
+EXP_FUNC void * STDCALL ax_malloc(size_t s)
+{
+    void *x;
+
+    if ((x = malloc(s)) == NULL)
+        exit_now(out_of_mem_str);
+
+    return x;
+}
+
+EXP_FUNC void * STDCALL ax_realloc(void *y, size_t s)
+{
+    void *x;
+
+    if ((x = realloc(y, s)) == NULL)
+        exit_now(out_of_mem_str);
+
+    return x;
+}
+
+EXP_FUNC void * STDCALL ax_calloc(size_t n, size_t s)
+{
+    void *x;
+
+    if ((x = calloc(n, s)) == NULL)
+        exit_now(out_of_mem_str);
+
+    return x;
+}
+
+EXP_FUNC FILE * STDCALL ax_fopen(const char *pathname, const char *type)
+{
+    FILE *f; 
+
+    if ((f = fopen(pathname, type)) == NULL)
+        exit_now(file_open_str, pathname);
+
+    return  f;
+}
+
+EXP_FUNC int STDCALL ax_open(const char *pathname, int flags)
+{
+    int x;
+
+    if ((x = open(pathname, flags)) < 0)
+        exit_now(file_open_str, pathname);
+
+    return x;
+}
+
+/**
+ * This is a call which will deliberately exit an application, but will
+ * display some information before dying.
+ */
+void exit_now(const char *format, ...)
+{
+    va_list argp;
+
+    va_start(argp, format);
+    vfprintf(stderr, format, argp);
+    va_end(argp);
+    abort();
+}
+