Fix encoder so at least one case of LF -> CR LF conversion happens correctly.

diff --git a/sbr/base64.c b/sbr/base64.c
index 6682c3f34f984f974a223c90936320321f6fa101..7ceb27b95759651d6bd36732d60904bb3150674d 100644 (file)
--- a/sbr/base64.c
+++ b/sbr/base64.c
@@ -17,6 +17,7 @@ writeBase64aux (FILE *in, FILE *out, int crlf)
 {
     unsigned int cc, n;
     unsigned char inbuf[3];
+    int skipnl = 0;
 
     n = BPERLIN;
     while ((cc = fread (inbuf, sizeof(*inbuf), sizeof(inbuf), in)) > 0) {
@@ -39,7 +40,7 @@ writeBase64aux (FILE *in, FILE *out, int crlf)
            unsigned int i;
 
            for (i = 0; i < cc; i++) {
-               if (inbuf[i] == '\n') {
+               if (inbuf[i] == '\n' && !skipnl) {
                    inbuf[i] = '\r';
                    /*
                     * If it's the last character in the buffer, we can just
@@ -48,6 +49,7 @@ writeBase64aux (FILE *in, FILE *out, int crlf)
                     */
                    if (i == cc - 1) {
                        ungetc('\n', in);
+                       skipnl = 1;
                    } else {
                        /* This only works as long as sizeof(inbuf) == 3 */
                        ungetc(inbuf[cc - 1], in);
@@ -55,6 +57,8 @@ writeBase64aux (FILE *in, FILE *out, int crlf)
                            inbuf[2] = inbuf[1];
                        inbuf[++i] = '\n';
                    }
+               } else {
+                   skipnl = 0;
                }
            }
        }