From 3a2bbdb05ca6a6996e424c9fb225cb0d53804125 Mon Sep 17 00:00:00 2001
From: Alberto Gonzalez Iniesta <agi@inittab.org>
Date: Tue, 27 Dec 2016 18:25:47 +0100
Subject: New upstream version 2.4.0

---
 src/openvpn/base64.c | 144 +++++++++++++++++++++++++++++++--------------------
 1 file changed, 89 insertions(+), 55 deletions(-)

(limited to 'src/openvpn/base64.c')

diff --git a/src/openvpn/base64.c b/src/openvpn/base64.c
index 258b258..c799ede 100644
--- a/src/openvpn/base64.c
+++ b/src/openvpn/base64.c
@@ -43,14 +43,14 @@
 
 #include "memdbg.h"
 
-static char base64_chars[] = 
+static char base64_chars[] =
     "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 /*
  * base64 encode input data of length size to malloced
  * buffer which is returned as *str.  Returns string
  * length of *str.
  */
-int 
+int
 openvpn_base64_encode(const void *data, int size, char **str)
 {
     char *s, *p;
@@ -59,44 +59,58 @@ openvpn_base64_encode(const void *data, int size, char **str)
     const unsigned char *q;
 
     if (size < 0)
-	return -1;
+    {
+        return -1;
+    }
     p = s = (char *) malloc(size * 4 / 3 + 4);
     if (p == NULL)
-	return -1;
+    {
+        return -1;
+    }
     q = (const unsigned char *) data;
     i = 0;
-    for (i = 0; i < size;) {
-	c = q[i++];
-	c *= 256;
-	if (i < size)
-	    c += q[i];
-	i++;
-	c *= 256;
-	if (i < size)
-	    c += q[i];
-	i++;
-	p[0] = base64_chars[(c & 0x00fc0000) >> 18];
-	p[1] = base64_chars[(c & 0x0003f000) >> 12];
-	p[2] = base64_chars[(c & 0x00000fc0) >> 6];
-	p[3] = base64_chars[(c & 0x0000003f) >> 0];
-	if (i > size)
-	    p[3] = '=';
-	if (i > size + 1)
-	    p[2] = '=';
-	p += 4;
+    for (i = 0; i < size; ) {
+        c = q[i++];
+        c *= 256;
+        if (i < size)
+        {
+            c += q[i];
+        }
+        i++;
+        c *= 256;
+        if (i < size)
+        {
+            c += q[i];
+        }
+        i++;
+        p[0] = base64_chars[(c & 0x00fc0000) >> 18];
+        p[1] = base64_chars[(c & 0x0003f000) >> 12];
+        p[2] = base64_chars[(c & 0x00000fc0) >> 6];
+        p[3] = base64_chars[(c & 0x0000003f) >> 0];
+        if (i > size)
+        {
+            p[3] = '=';
+        }
+        if (i > size + 1)
+        {
+            p[2] = '=';
+        }
+        p += 4;
     }
     *p = 0;
     *str = s;
     return strlen(s);
 }
 
-static int 
+static int
 pos(char c)
 {
     char *p;
     for (p = base64_chars; *p; p++)
-	if (*p == c)
-	    return p - base64_chars;
+        if (*p == c)
+        {
+            return p - base64_chars;
+        }
     return -1;
 }
 
@@ -109,18 +123,28 @@ token_decode(const char *token)
     unsigned int val = 0;
     int marker = 0;
     if (!token[0] || !token[1] || !token[2] || !token[3])
-	return DECODE_ERROR;
+    {
+        return DECODE_ERROR;
+    }
     for (i = 0; i < 4; i++) {
-	val *= 64;
-	if (token[i] == '=')
-	    marker++;
-	else if (marker > 0)
-	    return DECODE_ERROR;
-	else
-	    val += pos(token[i]);
+        val *= 64;
+        if (token[i] == '=')
+        {
+            marker++;
+        }
+        else if (marker > 0)
+        {
+            return DECODE_ERROR;
+        }
+        else
+        {
+            val += pos(token[i]);
+        }
     }
     if (marker > 2)
-	return DECODE_ERROR;
+    {
+        return DECODE_ERROR;
+    }
     return (marker << 24) | val;
 }
 /*
@@ -137,27 +161,37 @@ openvpn_base64_decode(const char *str, void *data, int size)
 
     q = data;
     if (size >= 0)
-      e = q + size;
+    {
+        e = q + size;
+    }
     for (p = str; *p && (*p == '=' || strchr(base64_chars, *p)); p += 4) {
-	unsigned int val = token_decode(p);
-	unsigned int marker = (val >> 24) & 0xff;
-	if (val == DECODE_ERROR)
-	    return -1;
-	if (e && q >= e)
-	  return -1;
-	*q++ = (val >> 16) & 0xff;
-	if (marker < 2)
-	  {
-	    if (e && q >= e)
-	      return -1;
-	    *q++ = (val >> 8) & 0xff;
-	  }
-	if (marker < 1)
-	  {
-	    if (e && q >= e)
-	      return -1;
-	    *q++ = val & 0xff;
-	  }
+        unsigned int val = token_decode(p);
+        unsigned int marker = (val >> 24) & 0xff;
+        if (val == DECODE_ERROR)
+        {
+            return -1;
+        }
+        if (e && q >= e)
+        {
+            return -1;
+        }
+        *q++ = (val >> 16) & 0xff;
+        if (marker < 2)
+        {
+            if (e && q >= e)
+            {
+                return -1;
+            }
+            *q++ = (val >> 8) & 0xff;
+        }
+        if (marker < 1)
+        {
+            if (e && q >= e)
+            {
+                return -1;
+            }
+            *q++ = val & 0xff;
+        }
     }
     return q - (unsigned char *) data;
 }
-- 
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