change own&grp when it should. version 0.8.1!

1 files changed, 27 insertions, 0 deletions

diff --git a/src/ckutil.c b/src/ckutil.c
index 84eb43d..f292e8e 100644
--- a/src/ckutil.c
+++ b/src/ckutil.c
@@ -17,6 +17,9 @@
 #include <unistd.h>
 
 #include "ckutil.h"
+#include "ckerrlog.h"
+
+ERRLOG(utility);
 
 int util_is_dir(const char *path) {
   if (!path) {
@@ -153,3 +156,27 @@ int str_is_empty(const char *s) {
   }
   return 1;
 }
+
+int util_own_grp_copy(const char *dest, const char *original) {
+  if (!dest || !original) {
+    return -1;
+  }
+  struct stat destbuf, origbuf;
+  if (lstat(dest, &destbuf)) {
+    sERR("error stating %s", dest)
+    return -1;
+  }
+  if (stat(original, &origbuf)) {
+    sERR("error stating %s", original)
+    return -1;
+  }
+  if (destbuf.st_uid != origbuf.st_uid
+      || destbuf.st_gid != origbuf.st_gid) {
+    hLOG("Copying uid & gid: %s -> %s", original, dest);
+    if (lchown(dest, origbuf.st_uid, origbuf.st_gid)) {
+      sERR("Cannot change owner and group of %s", dest);
+      return -1;
+    }
+  }
+  return 0;
+}