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-rw-r--r--gnu/home/services/ssh.scm12
1 files changed, 7 insertions, 5 deletions
diff --git a/gnu/home/services/ssh.scm b/gnu/home/services/ssh.scm
index f0987aee23..d15f5ee912 100644
--- a/gnu/home/services/ssh.scm
+++ b/gnu/home/services/ssh.scm
@@ -69,17 +69,19 @@
" " value "\n"))
(define (address-family? obj)
- (memv obj (list 'unset AF_INET AF_INET6)))
+ (memv obj (list AF_INET AF_INET6)))
+
+(define-maybe address-family)
(define (serialize-address-family field family)
- (if (eq? 'unset family)
- ""
+ (if (maybe-value-set? family)
(string-append " " (serialize-field-name field) " "
(cond ((= family AF_INET) "inet")
((= family AF_INET6) "inet6")
;; The 'else' branch is unreachable.
(else (raise (condition (&error)))))
- "\n")))
+ "\n")
+ ""))
(define (natural-number? obj)
(and (integer? obj) (exact? obj) (> obj 0)))
@@ -115,7 +117,7 @@
maybe-string
"Host name---e.g., @code{\"foo.example.org\"} or @code{\"192.168.1.2\"}.")
(address-family
- address-family
+ maybe-address-family
"Address family to use when connecting to this host: one of
@code{AF_INET} (for IPv4 only), @code{AF_INET6} (for IPv6 only).
Additionally, the field can be left unset to allow any address family.")