Pass errno as unsigned char

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/libnsss/nsss_switch_shadow_get.c b/src/libnsss/nsss_switch_shadow_get.c
index 27b1e70..a2fc431 100644
--- a/src/libnsss/nsss_switch_shadow_get.c
+++ b/src/libnsss/nsss_switch_shadow_get.c
@@ -8,10 +8,10 @@
 
 int nsss_switch_shadow_get (nsss_switch_t *a, struct spwd *sp, stralloc *sa, tain const *deadline, tain *stamp)
 {
-  char c = NSSS_SWITCH_SHADOW_GET ;
-  if (!ipc_timed_send(buffer_fd(&a->b), &c, 1, deadline, stamp)) return 0 ;
-  if (!buffer_timed_get(&a->b, &c, 1, deadline, stamp)) return 0 ;
-  if ((unsigned char)c == 255) return 0 ;
+  unsigned char c = NSSS_SWITCH_SHADOW_GET ;
+  if (!ipc_timed_send(buffer_fd(&a->b), (char *)&c, 1, deadline, stamp)) return 0 ;
+  if (!buffer_timed_get(&a->b, (char *)&c, 1, deadline, stamp)) return 0 ;
+  if (c == 255) return 0 ;
   if (c) return (errno = c, 0) ;
   return nsss_switch_shadow_read(&a->b, sp, sa, deadline, stamp) ;
 }