Merge pull request #13649 from donaldsharp/unlock_the_node_or_else

[mirror_frr.git] / lib / command.c

diff --git a/lib/command.c b/lib/command.c
index e92251160fd485290c2554da13baade7c924e825..099563721902666f493661f173f2a0b90ea47b97 100644 (file)
--- a/lib/command.c
+++ b/lib/command.c
@@ -735,9 +735,13 @@ char *cmd_variable_comp2str(vector comps, unsigned short cols)
                char *item = vector_slot(comps, j);
                itemlen = strlen(item);
 
-               if (cs + itemlen + AUTOCOMP_INDENT + 3 >= bsz)
-                       buf = XREALLOC(MTYPE_TMP, buf, (bsz *= 2));
+               size_t next_sz = cs + itemlen + AUTOCOMP_INDENT + 3;
 
+               if (next_sz > bsz) {
+                       /* Make sure the buf size is large enough */
+                       bsz = next_sz;
+                       buf = XREALLOC(MTYPE_TMP, buf, bsz);
+               }
                if (lc + itemlen + 1 >= cols) {
                        cs += snprintf(&buf[cs], bsz - cs, "\n%*s",
                                       AUTOCOMP_INDENT, "");