1 files changed, 142 insertions, 0 deletions
diff --git a/lib/ldaputil/encode.c b/lib/ldaputil/encode.c
new file mode 100644
index 00000000..3157418c
--- /dev/null
+++ b/lib/ldaputil/encode.c
@@ -0,0 +1,142 @@
+/** BEGIN COPYRIGHT BLOCK
+ * Copyright 2001 Sun Microsystems, Inc.
+ * Portions copyright 1999, 2001-2003 Netscape Communications Corporation.
+ * All rights reserved.
+ * END COPYRIGHT BLOCK **/
+
+#include <malloc.h>
+#include <string.h>
+#include <ldaputil/certmap.h>
+#include <ldaputil/encode.h>
+
+/* The magic set of 64 chars in the uuencoded data */
+static unsigned char uuset[] = {
+'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T',
+'U','V','W','X','Y','Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n',
+'o','p','q','r','s','t','u','v','w','x','y','z','0','1','2','3','4','5','6','7',
+'8','9','+','/' };
+ 
+static int do_uuencode(unsigned char *src, unsigned char *dst, int srclen)
+{
+   int  i, r;
+   unsigned char *p;
+ 
+/* To uuencode, we snip 8 bits from 3 bytes and store them as
+6 bits in 4 bytes.   6*4 == 8*3 (get it?) and 6 bits per byte
+yields nice clean bytes
+ 
+It goes like this:
+        AAAAAAAA BBBBBBBB CCCCCCCC
+turns into the standard set of uuencode ascii chars indexed by numbers:
+        00AAAAAA 00AABBBB 00BBBBCC 00CCCCCC
+ 
+Snip-n-shift, snip-n-shift, etc....
+ 
+*/
+ 
+   for (p=dst,i=0; i < srclen; i += 3) {
+                /* Do 3 bytes of src */
+                register char b0, b1, b2;
+ 
+                b0 = src[0];
+                if (i==srclen-1)
+                        b1 = b2 = '\0';
+                else if (i==srclen-2) {
+                        b1 = src[1];
+                        b2 = '\0';
+                }
+                else {
+                        b1 = src[1];
+                        b2 = src[2];
+                }
+ 
+                *p++ = uuset[b0>>2];
+                *p++ = uuset[(((b0 & 0x03) << 4) | ((b1 & 0xf0) >> 4))];
+                *p++ = uuset[(((b1 & 0x0f) << 2) | ((b2 & 0xc0) >> 6))];
+                *p++ = uuset[b2 & 0x3f];
+                src += 3;
+   }
+   *p = 0;      /* terminate the string */
+   r = (unsigned char *)p - (unsigned char *)dst;/* remember how many we did */
+ 
+   /* Always do 4-for-3, but if not round threesome, have to go
+          clean up the last extra bytes */
+ 
+   for( ; i != srclen; i--)
+                *--p = '=';
+ 
+   return r;
+}
+ 
+const unsigned char pr2six[256]={
+    64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
+    64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,62,64,64,64,63,
+    52,53,54,55,56,57,58,59,60,61,64,64,64,64,64,64,64,0,1,2,3,4,5,6,7,8,9,
+    10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,64,64,64,64,64,64,26,27,
+    28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
+    64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
+    64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
+    64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
+    64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
+    64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
+    64,64,64,64,64,64,64,64,64,64,64,64,64
+};
+
+static char *_uudecode(const char *bufcoded)
+{
+    register const char *bufin = bufcoded;
+    register unsigned char *bufout;
+    register int nprbytes;
+    unsigned char *bufplain;
+    int nbytesdecoded;
+
+    /* Find the length */
+    while(pr2six[(int)*(bufin++)] <= 63);
+    nprbytes = bufin - bufcoded - 1;
+    nbytesdecoded = ((nprbytes+3)/4) * 3;
+
+    bufout = (unsigned char *) malloc(nbytesdecoded + 1);
+    bufplain = bufout;
+
+    bufin = bufcoded;
+    
+    while (nprbytes > 0) {
+        *(bufout++) = (unsigned char) 
+            (pr2six[(int)(*bufin)] << 2 | pr2six[(int)bufin[1]] >> 4);
+        *(bufout++) = (unsigned char) 
+            (pr2six[(int)bufin[1]] << 4 | pr2six[(int)bufin[2]] >> 2);
+        *(bufout++) = (unsigned char) 
+            (pr2six[(int)bufin[2]] << 6 | pr2six[(int)bufin[3]]);
+        bufin += 4;
+        nprbytes -= 4;
+    }
+    
+    if(nprbytes & 03) {
+        if(pr2six[(int)bufin[-2]] > 63)
+            nbytesdecoded -= 2;
+        else
+            nbytesdecoded -= 1;
+    }
+    bufplain[nbytesdecoded] = '\0';
+
+    return (char *)bufplain;
+}
+
+
+char *dbconf_encodeval (const char *val)
+{
+    int len = strlen(val);
+    char *dst = (char *)malloc(2*len);
+
+    if (dst) {
+	do_uuencode((unsigned char *)val, (unsigned char *)dst, len);
+    }
+
+    return dst;
+}
+
+char *dbconf_decodeval (const char *val)
+{
+    return _uudecode(val);
+}
+