skalibs

commit 122f9363682e5de8ce4056c4c05c1eaf8935cf19
parent 6c7a5b92bdfe68e847d371cc41f6655df3ef1ba5
Author: Laurent Bercot <ska-skaware@skarnet.org>
Date:   Wed, 21 Jul 2021 11:17:53 +0000

 Save errno when freeing a cdb

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

Diffstat:
M
src/libstddjb/cdb_free.c
 | 
9
++++++++-

1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/libstddjb/cdb_free.c b/src/libstddjb/cdb_free.c
@@ -1,10 +1,17 @@
 /* ISC license. */
 
 #include <sys/mman.h>
+#include <errno.h>
+
 #include <skalibs/cdb.h>
 
 extern void cdb_free (struct cdb *c)
 {
-  if (c->map) munmap(c->map, c->size) ;
+  if (c->map)
+  {
+    int e = errno ;
+    munmap(c->map, c->size) ;
+    errno = e ;
+  }
   *c = cdb_zero ;
 }