ngx_libc_crypt     56 src/core/ngx_crypt.c     return ngx_libc_crypt(pool, key, salt, encrypted);
ngx_libc_crypt     20 src/os/unix/ngx_user.h ngx_int_t ngx_libc_crypt(ngx_pool_t *pool, u_char *key, u_char *salt,