rohrpost

commit c4140c56b7d1d9a29bda32e018e57b2782caa1eb
parent 6ffc52c1ca93c1531ec8454842a0f4e615d58433
Author: Christoph Lohmann <20h@r-36.net>
Date:   Sun,  2 Apr 2017 16:25:56 +0200

Base64 as defined in RFC 2045.

Diffstat:
base64.c
 | 
22
+++++++++-------------

1 file changed, 9 insertions(+), 13 deletions(-)
diff --git a/base64.c b/base64.c
@@ -11,24 +11,19 @@
 #include "ind.h"
 
 char be[] =
-	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
 
 int
 readnwstr(char *buf, char *str, int *p, int max, int l)
 {
-	int i;
+	int i, j;
 
 	for (i = 0; *p < max && i < l; (*p)++) {
-		switch (str[*p]) {
-		case '\n':
-		case '\t':
-		case '\r':
-		case '\f':
-		case ' ':
-			break;
-		default:
-			buf[i++] = str[*p];
-			break;
+		for (j = 0; j < strlen(be); j++) {
+			if (str[*p] == be[j]) {
+				buf[i++] = str[*p];
+				break;
+			}
 		}
 	}
 
@@ -80,7 +75,8 @@ b64dec(char *istr, int *len)
 	char bd[256];
 
 	memset(bd, 0x80, 256);
-	for (p = 0; p < strlen(be); p++)
+	/* Without »=«. */
+	for (p = 0; p < strlen(be)-1; p++)
 		bd[(int)be[p]] = p;
 	bd['='] = 0;