diff options
Diffstat (limited to 'gnu/build/accounts.scm')
| -rw-r--r-- | gnu/build/accounts.scm | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/gnu/build/accounts.scm b/gnu/build/accounts.scm index c43ce85b60..b90149565f 100644 --- a/gnu/build/accounts.scm +++ b/gnu/build/accounts.scm @@ -19,6 +19,7 @@ (define-module (gnu build accounts) #:use-module (guix records) #:use-module (guix combinators) + #:use-module ((guix build syscalls) #:select (fdatasync)) #:use-module (gnu system accounts) #:use-module (srfi srfi-1) #:use-module (srfi srfi-11) @@ -51,6 +52,7 @@ group-entry-gid group-entry-members + %password-lock-file write-group write-passwd write-shadow @@ -224,6 +226,19 @@ each field." (serialization list->comma-separated comma-separated->list) (default '()))) +(define %password-lock-file + ;; The password database lock file used by libc's 'lckpwdf'. Users should + ;; grab this lock with 'with-file-lock' when they access the databases. + "/etc/.pwd.lock") + +(define-syntax-rule (catch-ENOSYS exp) + (catch 'system-error + (lambda () exp) + (lambda args + (if (= ENOSYS (system-error-errno args)) + #f + (apply throw args))))) + (define (database-writer file mode entry->string) (lambda* (entries #:optional (file-or-port file)) "Write ENTRIES to FILE-OR-PORT. When FILE-OR-PORT is a file name, write @@ -243,9 +258,16 @@ to it atomically and set the appropriate permissions." (lambda () (chmod port mode) (write-entries port) + + ;; XXX: When booting with the statically-linked Guile, + ;; 'fdatasync' is unavailable. + (catch-ENOSYS (fdatasync port)) + + (close-port port) (rename-file template file-or-port)) (lambda () - (close-port port) + (unless (port-closed? port) + (close-port port)) (when (file-exists? template) (delete-file template)))))))) |