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-rw-r--r--g10/misc.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/g10/misc.c b/g10/misc.c
index 11af251e1..8bc144a58 100644
--- a/g10/misc.c
+++ b/g10/misc.c
@@ -1132,6 +1132,16 @@ unescape_percent_string (const unsigned char *s)
}
+/* Check whether the string has characters not valid in an RFC-822
+ address. To cope with OpenPGP we ignore non-ascii characters
+ so that for example umlauts are legal in an email address. An
+ OpenPGP user ID must be utf-8 encoded but there is no strict
+ requirement for RFC-822. Thus to avoid IDNA encoding we put the
+ address verbatim as utf-8 into the user ID under the assumption
+ that mail programs handle IDNA at a lower level and take OpenPGP
+ user IDs as utf-8. Note that we can't do an utf-8 encoding
+ checking here because in keygen.c this function is called with the
+ native encoding and native to utf-8 encoding is only done later. */
int
has_invalid_email_chars (const char *s)
{
@@ -1142,7 +1152,7 @@ has_invalid_email_chars (const char *s)
for ( ; *s; s++ )
{
if ( *s & 0x80 )
- return 1;
+ continue; /* We only care about ASCII. */
if ( *s == '@' )
at_seen=1;
else if ( !at_seen && !( !!strchr( valid_chars, *s ) || *s == '+' ) )