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-rw-r--r--builtin-mailinfo.c32
1 files changed, 24 insertions, 8 deletions
diff --git a/builtin-mailinfo.c b/builtin-mailinfo.c
index 3e40747cf..ac53f76f6 100644
--- a/builtin-mailinfo.c
+++ b/builtin-mailinfo.c
@@ -348,7 +348,7 @@ static void cleanup_space(char *buf)
}
}
-static void decode_header_bq(char *it);
+static void decode_header(char *it);
typedef int (*header_fn_t)(char *);
struct header_def {
const char *name;
@@ -371,7 +371,7 @@ static void check_header(char *line, struct header_def *header)
/* Unwrap inline B and Q encoding, and optionally
* normalize the meta information to utf8.
*/
- decode_header_bq(line + len + 2);
+ decode_header(line + len + 2);
header[i].func(line + len + 2);
break;
}
@@ -566,16 +566,19 @@ static void convert_to_utf8(char *line, char *charset)
#endif
}
-static void decode_header_bq(char *it)
+static int decode_header_bq(char *it)
{
char *in, *out, *ep, *cp, *sp;
char outbuf[1000];
+ int rfc2047 = 0;
in = it;
out = outbuf;
while ((ep = strstr(in, "=?")) != NULL) {
int sz, encoding;
char charset_q[256], piecebuf[256];
+ rfc2047 = 1;
+
if (in != ep) {
sz = ep - in;
memcpy(out, in, sz);
@@ -589,19 +592,19 @@ static void decode_header_bq(char *it)
ep += 2;
cp = strchr(ep, '?');
if (!cp)
- return; /* no munging */
+ return rfc2047; /* no munging */
for (sp = ep; sp < cp; sp++)
charset_q[sp - ep] = tolower(*sp);
charset_q[cp - ep] = 0;
encoding = cp[1];
if (!encoding || cp[2] != '?')
- return; /* no munging */
+ return rfc2047; /* no munging */
ep = strstr(cp + 3, "?=");
if (!ep)
- return; /* no munging */
+ return rfc2047; /* no munging */
switch (tolower(encoding)) {
default:
- return; /* no munging */
+ return rfc2047; /* no munging */
case 'b':
sz = decode_b_segment(cp + 3, piecebuf, ep);
break;
@@ -610,7 +613,7 @@ static void decode_header_bq(char *it)
break;
}
if (sz < 0)
- return;
+ return rfc2047;
if (metainfo_charset)
convert_to_utf8(piecebuf, charset_q);
strcpy(out, piecebuf);
@@ -619,6 +622,19 @@ static void decode_header_bq(char *it)
}
strcpy(out, in);
strcpy(it, outbuf);
+ return rfc2047;
+}
+
+static void decode_header(char *it)
+{
+
+ if (decode_header_bq(it))
+ return;
+ /* otherwise "it" is a straight copy of the input.
+ * This can be binary guck but there is no charset specified.
+ */
+ if (metainfo_charset)
+ convert_to_utf8(it, "");
}
static void decode_transfer_encoding(char *line)