From 680d16dcb79f999fad3a652c5190d6a5c6ea10dd Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 2 Oct 2012 09:00:45 +0200 Subject: error: add error_set_errno and error_setg_errno These functions help maintaining homogeneous formatting of error messages that include strerror values. Acked-by: Luiz Capitulino Signed-off-by: Paolo Bonzini --- error.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'error.c') diff --git a/error.c b/error.c index 1f05fc4..128d88c 100644 --- a/error.c +++ b/error.c @@ -43,6 +43,34 @@ void error_set(Error **errp, ErrorClass err_class, const char *fmt, ...) *errp = err; } +void error_set_errno(Error **errp, int os_errno, ErrorClass err_class, + const char *fmt, ...) +{ + Error *err; + char *msg1; + va_list ap; + + if (errp == NULL) { + return; + } + assert(*errp == NULL); + + err = g_malloc0(sizeof(*err)); + + va_start(ap, fmt); + msg1 = g_strdup_vprintf(fmt, ap); + if (os_errno != 0) { + err->msg = g_strdup_printf("%s: %s", msg1, strerror(os_errno)); + g_free(msg1); + } else { + err->msg = msg1; + } + va_end(ap); + err->err_class = err_class; + + *errp = err; +} + Error *error_copy(const Error *err) { Error *err_new; -- cgit v1.1