PFS_NAMELEN
KASSERT(len < PFS_NAMELEN,
#define PFS_DELEN (offsetof(struct dirent, d_name) + PFS_NAMELEN)
char pidbuf[PFS_NAMELEN];
if (cnp->cn_namelen >= PFS_NAMELEN)
for (i = 0; i < PFS_NAMELEN - 1 && pn->pn_name[i] != '\0'; ++i)
PFS_NAMELEN, "%d", p->p_pid);