- if (dir[strlen(dir) - 1] == '/')
- snprintf(globdir, 256, "%s*", dir);
+ if (dirlen + sizeof("/*") > globdirlen) {
+ /* Alloc extra 256 B to avoid too many reallocs */
+ size_t len = dirlen + sizeof("/*") + 256;
+ char *tmp;
+
+ tmp = realloc(globdir, len);
+ if (!tmp)
+ return;
+ globdir = tmp;
+ globdirlen = len;
+ }
+
+ if (dir[dirlen - 1] == '/')
+ sprintf(globdir, "%s*", dir);