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| author | Denys Vlasenko | 2017-10-05 17:18:23 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2017-10-05 17:18:23 +0200 |
| commit | 1121b4e568b340cfe2a9b7fc41fb48f4d684ad47 (patch) | |
| tree | 4dedd5ad7bbddd91873821adba01634e508b4dcf /mailutils/sendmail.c | |
| parent | 2ab9403119399ffda26f6ff83ec60ac257c29898 (diff) | |
| download | busybox-1121b4e568b340cfe2a9b7fc41fb48f4d684ad47.zip busybox-1121b4e568b340cfe2a9b7fc41fb48f4d684ad47.tar.gz | |
sendmail allow "=" symbol in recipient, closes 10241
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'mailutils/sendmail.c')
| -rw-r--r-- | mailutils/sendmail.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c index defbd95..4ca91fa 100644 --- a/mailutils/sendmail.c +++ b/mailutils/sendmail.c @@ -150,7 +150,13 @@ static char *sane_address(char *str) trim(str); s = str; while (*s) { - if (!isalnum(*s) && !strchr("+_-.@", *s)) { + /* Standard allows these chars in username without quoting: + * /!#$%&'*+-=?^_`{|}~ + * and allows dot (.) with some restrictions. + * I chose to only allow a saner subset. + * I propose to expand it only on user's request. + */ + if (!isalnum(*s) && !strchr("=+_-.@", *s)) { bb_error_msg("bad address '%s'", str); /* returning "": */ str[0] = '\0'; |