Re: [Libguestfs] [PATCH 2/3] daemon/selinux-relabel: search for "invalid option" in setfiles output

'X' in the setiles' stderr doesn't necessarily mean that option 'X' doesn't exist. For instance, when passing '-T' we get: "setfiles: option requires an argument -- 'T'". Signed-off-by: Andrey Drobyshev <andrey.drobyshev(a)virtuozzo.com&gt; --- daemon/selinux-relabel.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/daemon/selinux-relabel.c b/daemon/selinux-relabel.c index 454486c17..60a6f48a9 100644 --- a/daemon/selinux-relabel.c +++ b/daemon/selinux-relabel.c @@ -56,8 +56,9 @@ setfiles_has_option (int *flag, char opt_char) if (*flag == -1) { char option[] = { '-', opt_char, '\0' }; /* "-X" */ - char err_opt[] = { '\'', opt_char, '\'', '\0'}; /* "'X'" */ + char err_opt[32]; /* "invalid option -- 'X'" */ + snprintf(err_opt, sizeof(err_opt), "invalid option -- '%c'", opt_char); ignore_value (command (NULL, &err, "setfiles", option, NULL)); *flag = err && strstr (err, /* "invalid option -- " */ err_opt) == NULL; }