S_ISSOCK           81 lib/sys_stat.in.h # undef S_ISSOCK
S_ISSOCK          168 lib/sys_stat.in.h #  define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
S_ISSOCK          170 lib/sys_stat.in.h #  define S_ISSOCK(m) 0