[PATCH] Fix vacation(1) handling of from addresses in angle brackets

[Piotr Durlej]

vacation(1) doesn't work:

smtpd[39062]: ccca6c1750c9b32e smtp failed-command command="RCPT 
TO:<<d...@example.com>> " result="501 5.1.3 Recipient address syntax error"

---
 vacation.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/vacation.c b/vacation.c
index 7105f56..72f02f7 100644
--- a/vacation.c
+++ b/vacation.c
@@ -179,6 +179,17 @@ main(int argc, char *argv[])
        /* NOTREACHED */
 }
 
+void
+fixfrom(void)
+{
+       char *p;
+
+       if ((p = strchr(from, '<'))) {
+               memmove(from, p + 1, strlen(p));
+               from[strcspn(from, ">")] = 0;
+       }
+}
+
 /*
  * readheaders --
  *     read mail headers
@@ -223,6 +234,7 @@ readheaders(void)
                                *p = '\0';
                                (void)strlcpy(from, buf + 5, sizeof(from));
                                from[strcspn(from, "\n")] = '\0';
+                               fixfrom();
                                if (junkmail())
                                        exit(0);
                        }
@@ -252,6 +264,7 @@ readheaders(void)
                                exit(1);
                        }
                        from[strcspn(from, "\n")] = '\0';
+                       fixfrom();
                        if (junkmail())
                                exit(0);
                        break;
-- 
2.44.0