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mime: limit bas64-encoded lines length to 76 characters

This commit is contained in:
Patrick Monnerat 2017-10-19 18:33:27 +01:00
parent 2509395ecf
commit a8742efe42
2 changed files with 4 additions and 4 deletions
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4
lib/mime.c
View File

@ -406,7 +406,7 @@ static size_t encoder_base64_read(char *buffer, size_t size, bool ateof,
while(st->bufbeg < st->bufend) {
/* Line full ? */
if(st->pos >= MAX_ENCODED_LINE_LENGTH - 4) {
if(st->pos > MAX_ENCODED_LINE_LENGTH - 4) {
/* Yes, we need 2 characters for CRLF. */
if(size < 2)
break;
@ -421,7 +421,7 @@ static size_t encoder_base64_read(char *buffer, size_t size, bool ateof,
if(size < 4 || st->bufend - st->bufbeg < 3)
break;
/* Encode three bytes a four characters. */
/* Encode three bytes as four characters. */
i = st->buf[st->bufbeg++] & 0xFF;
i = (i << 8) | (st->buf[st->bufbeg++] & 0xFF);
i = (i << 8) | (st->buf[st->bufbeg++] & 0xFF);

4
tests/data/test648
View File

@ -66,8 +66,8 @@ This is the e-mail inline text with a very long line containing the special=
Content-Disposition: attachment; filename="test648.txt"
Content-Transfer-Encoding: base64
VGhpcyBpcyBhbiBhdHRhY2hlZCBmaWxlLgoKSXQgbWF5IGNvbnRhaW4gYW55IHR5cGUgb2Yg
ZGF0YSBhbmQgd2lsbCBiZSBlbmNvZGVkIGluIGJhc2U2NCBmb3IgdHJhbnNmZXIuCg==
VGhpcyBpcyBhbiBhdHRhY2hlZCBmaWxlLgoKSXQgbWF5IGNvbnRhaW4gYW55IHR5cGUgb2YgZGF0
YSBhbmQgd2lsbCBiZSBlbmNvZGVkIGluIGJhc2U2NCBmb3IgdHJhbnNmZXIuCg==
--------------------------------
.
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