From f3bf604022a874c3c26e5112d4d76253fc3c23de Mon Sep 17 00:00:00 2001
From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Thu, 25 Nov 2010 19:51:46 +0000
Subject: [PATCH] move base64 to common code

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@10631 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=4bee24a5cf254a418660db56e4e67e105937565e
---
 common.c | 31 +++++++++++++++++++++++++++++++
 common.h |  2 ++
 crypto.c | 31 -------------------------------
 3 files changed, 33 insertions(+), 31 deletions(-)

diff --git a/common.c b/common.c
index 71c059ac..11a350bf 100644
--- a/common.c
+++ b/common.c
@@ -2260,3 +2260,34 @@ char **XPM_DecodeString(const char *in)
 
 	return tokens;
 }
+
+static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static void base64_3to4(const unsigned char *in, unsigned char *out, int bytes)
+{
+	unsigned char i0 = (bytes > 0) ? in[0] : 0;
+	unsigned char i1 = (bytes > 1) ? in[1] : 0;
+	unsigned char i2 = (bytes > 2) ? in[2] : 0;
+	unsigned char o0 = base64[i0 >> 2];
+	unsigned char o1 = base64[((i0 << 4) | (i1 >> 4)) & 077];
+	unsigned char o2 = base64[((i1 << 2) | (i2 >> 6)) & 077];
+	unsigned char o3 = base64[i2 & 077];
+	out[0] = (bytes > 0) ? o0 : '?';
+	out[1] = (bytes > 0) ? o1 : '?';
+	out[2] = (bytes > 1) ? o2 : '=';
+	out[3] = (bytes > 2) ? o3 : '=';
+}
+
+size_t base64_encode(unsigned char *buf, size_t buflen, size_t outbuflen)
+{
+	size_t blocks, i;
+	// expand the out-buffer
+	blocks = (buflen + 2) / 3;
+	if(blocks*4 > outbuflen)
+		return 0;
+	for(i = blocks; i > 0; )
+	{
+		--i;
+		base64_3to4(buf + 3*i, buf + 4*i, buflen - 3*i);
+	}
+	return blocks * 4;
+}
diff --git a/common.h b/common.h
index a5565ac7..f3516c5d 100644
--- a/common.h
+++ b/common.h
@@ -359,5 +359,7 @@ void FindFraction(double val, int *num, int *denom, int denomMax);
 // decodes XPM file to XPM array (as if #include'd)
 char **XPM_DecodeString(const char *in);
 
+size_t base64_encode(unsigned char *buf, size_t buflen, size_t outbuflen);
+
 #endif
 
diff --git a/crypto.c b/crypto.c
index fa2ea67c..c261d490 100644
--- a/crypto.c
+++ b/crypto.c
@@ -354,37 +354,6 @@ static size_t Crypto_LoadFile(const char *path, char *buf, size_t nmax)
 	return (size_t) n;
 }
 
-static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-static void base64_3to4(const unsigned char *in, unsigned char *out, int bytes)
-{
-	unsigned char i0 = (bytes > 0) ? in[0] : 0;
-	unsigned char i1 = (bytes > 1) ? in[1] : 0;
-	unsigned char i2 = (bytes > 2) ? in[2] : 0;
-	unsigned char o0 = base64[i0 >> 2];
-	unsigned char o1 = base64[((i0 << 4) | (i1 >> 4)) & 077];
-	unsigned char o2 = base64[((i1 << 2) | (i2 >> 6)) & 077];
-	unsigned char o3 = base64[i2 & 077];
-	out[0] = (bytes > 0) ? o0 : '?';
-	out[1] = (bytes > 0) ? o1 : '?';
-	out[2] = (bytes > 1) ? o2 : '=';
-	out[3] = (bytes > 2) ? o3 : '=';
-}
-
-size_t base64_encode(unsigned char *buf, size_t buflen, size_t outbuflen)
-{
-	size_t blocks, i;
-	// expand the out-buffer
-	blocks = (buflen + 2) / 3;
-	if(blocks*4 > outbuflen)
-		return 0;
-	for(i = blocks; i > 0; )
-	{
-		--i;
-		base64_3to4(buf + 3*i, buf + 4*i, buflen - 3*i);
-	}
-	return blocks * 4;
-}
-
 static qboolean PutWithNul(char **data, size_t *len, const char *str)
 {
 	// invariant: data points to insertion point
-- 
2.39.2