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-rw-r--r--nis/nis_removemember.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/nis/nis_removemember.c b/nis/nis_removemember.c
index 28050a1ac3..4fa8893a84 100644
--- a/nis/nis_removemember.c
+++ b/nis/nis_removemember.c
@@ -23,11 +23,12 @@
 nis_error
 nis_removemember (const_nis_name member, const_nis_name group)
 {
-  if (group != NULL && strlen (group) > 0)
+  if (group != NULL && group[0] != '\0')
     {
-      char buf[strlen (group) + 14 + NIS_MAXNAMELEN];
-      char leafbuf[strlen (group) + 2];
-      char domainbuf[strlen (group) + 2];
+      size_t grouplen = strlen (group);
+      char buf[grouplen + 14 + NIS_MAXNAMELEN];
+      char leafbuf[grouplen + 2];
+      char domainbuf[grouplen + 2];
       nis_name *newmem;
       nis_result *res, *res2;
       nis_error status;
@@ -37,7 +38,7 @@ nis_removemember (const_nis_name member, const_nis_name group)
       cp = stpcpy (buf, nis_leaf_of_r (group, leafbuf, sizeof (leafbuf) - 1));
       cp = stpcpy (cp, ".groups_dir");
       cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1);
-      if (cp2 != NULL && strlen (cp2) > 0)
+      if (cp2 != NULL && cp2[0] != '\0')
         {
           cp = stpcpy (cp, ".");
           stpcpy (cp, cp2);