sendmail: support addresses inside angle brackets

When we extract addresses from the e-mail, try to first check for an
address inside angle brackets.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 20 insertions, 2 deletions

diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c
index 0f536adae..10a5a85d4 100644
--- a/mailutils/sendmail.c
+++ b/mailutils/sendmail.c
@@ -117,6 +117,24 @@ static char *sane_address(char *str)
         return str;
 }
 
+// check for an address inside angle brackets, if not found fall back to normal
+static char *angle_address(char *str)
+{
+        char *s = str;
+        char *e = str + strlen(str);
+
+        while (e != str && (isspace(*e) || *e == '\0'))
+                e--;
+        if (*e != '>')
+                goto done;
+        *e = '\0';
+        e = strrchr(s, '<');
+        if (e != NULL)
+                s = e + 1;
+done:
+        return sane_address(s);
+}
+
 static void rcptto(const char *s)
 {
         if (!*s)
@@ -300,13 +318,13 @@ int sendmail_main(int argc UNUSED_PARAM, char **argv)
                 if (opts & OPT_t) {
                         if (0 == strncasecmp("To:", s, 3) || 0 == strncasecmp("Bcc:" + 1, s, 3)) {
                                 char *r = xstrdup(s+3);
-                                rcptto(sane_address(r));
+                                rcptto(angle_address(r));
                                 free(r);
                                 goto addheader;
                         }
                         // Bcc: header adds blind copy (hidden) recipient
                         if (0 == strncasecmp("Bcc:", s, 4)) {
-                                rcptto(sane_address(s+4));
+                                rcptto(angle_address(s+4));
                                 free(s);
                                 continue; // N.B. Bcc: vanishes from headers!
                         }