diff --git a/.gitignore b/.gitignore
index ae24c47..cb91be4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -173,3 +173,8 @@ cython_debug/
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 
+a.out
+*.out
+*.o
+server
+client
diff --git a/sample/.deps/client.Po b/sample/.deps/client.Po
new file mode 100644
index 0000000..eaf77c8
--- /dev/null
+++ b/sample/.deps/client.Po
@@ -0,0 +1,268 @@
+client.o: client.c /usr/include/stdc-predef.h ../config.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h /usr/include/features.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h \
+ /usr/include/x86_64-linux-gnu/sys/uio.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h \
+ /usr/include/x86_64-linux-gnu/bits/uio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/uio-ext.h /usr/include/stdlib.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h \
+ /usr/include/alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h \
+ /usr/include/x86_64-linux-gnu/sys/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/socket_type.h \
+ /usr/include/x86_64-linux-gnu/bits/sockaddr.h \
+ /usr/include/x86_64-linux-gnu/asm/socket.h \
+ /usr/include/asm-generic/socket.h /usr/include/linux/posix_types.h \
+ /usr/include/linux/stddef.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types_64.h \
+ /usr/include/asm-generic/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/bitsperlong.h \
+ /usr/include/asm-generic/bitsperlong.h \
+ /usr/include/x86_64-linux-gnu/asm/sockios.h \
+ /usr/include/asm-generic/sockios.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h \
+ /usr/include/netdb.h /usr/include/netinet/in.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-uintn.h \
+ /usr/include/x86_64-linux-gnu/bits/in.h /usr/include/rpc/netdb.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigevent_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigval_t.h \
+ /usr/include/x86_64-linux-gnu/bits/netdb.h \
+ /usr/include/x86_64-linux-gnu/sys/param.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/syslimits.h \
+ /usr/include/limits.h /usr/include/x86_64-linux-gnu/bits/posix1_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/local_lim.h \
+ /usr/include/linux/limits.h \
+ /usr/include/x86_64-linux-gnu/bits/posix2_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/xopen_lim.h /usr/include/signal.h \
+ /usr/include/x86_64-linux-gnu/bits/signum.h \
+ /usr/include/x86_64-linux-gnu/bits/signum-generic.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sig_atomic_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/siginfo_t.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-consts.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-consts-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigval_t.h \
+ /usr/include/x86_64-linux-gnu/bits/sigevent-consts.h \
+ /usr/include/x86_64-linux-gnu/bits/sigaction.h \
+ /usr/include/x86_64-linux-gnu/bits/sigcontext.h \
+ /usr/include/x86_64-linux-gnu/bits/types/stack_t.h \
+ /usr/include/x86_64-linux-gnu/sys/ucontext.h \
+ /usr/include/x86_64-linux-gnu/bits/sigstack.h \
+ /usr/include/x86_64-linux-gnu/bits/ss_flags.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_sigstack.h \
+ /usr/include/x86_64-linux-gnu/bits/sigthread.h \
+ /usr/include/x86_64-linux-gnu/bits/signal_ext.h \
+ /usr/include/x86_64-linux-gnu/bits/param.h /usr/include/linux/param.h \
+ /usr/include/x86_64-linux-gnu/asm/param.h \
+ /usr/include/asm-generic/param.h /usr/include/string.h \
+ /usr/include/strings.h /usr/include/sysexits.h \
+ /usr/include/x86_64-linux-gnu/sys/time.h /usr/include/stdio.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/sys_errlist.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio.h /usr/include/ctype.h \
+ /usr/include/errno.h /usr/include/x86_64-linux-gnu/bits/errno.h \
+ /usr/include/linux/errno.h /usr/include/x86_64-linux-gnu/asm/errno.h \
+ /usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h \
+ /usr/include/x86_64-linux-gnu/bits/types/error_t.h /usr/include/unistd.h \
+ /usr/include/x86_64-linux-gnu/bits/posix_opt.h \
+ /usr/include/x86_64-linux-gnu/bits/environments.h \
+ /usr/include/x86_64-linux-gnu/bits/confname.h \
+ /usr/include/x86_64-linux-gnu/bits/getopt_posix.h \
+ /usr/include/x86_64-linux-gnu/bits/getopt_core.h \
+ /usr/include/x86_64-linux-gnu/bits/unistd_ext.h /usr/include/arpa/inet.h \
+ /usr/include/assert.h ../include/sasl.h ../include/prop.h \
+ ../include/saslplug.h ../include/md5global.h ../include/md5.h \
+ ../include/hmac-md5.h common.h
+/usr/include/stdc-predef.h:
+../config.h:
+/usr/include/x86_64-linux-gnu/sys/types.h:
+/usr/include/features.h:
+/usr/include/x86_64-linux-gnu/sys/cdefs.h:
+/usr/include/x86_64-linux-gnu/bits/wordsize.h:
+/usr/include/x86_64-linux-gnu/bits/long-double.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs-64.h:
+/usr/include/x86_64-linux-gnu/bits/types.h:
+/usr/include/x86_64-linux-gnu/bits/timesize.h:
+/usr/include/x86_64-linux-gnu/bits/typesizes.h:
+/usr/include/x86_64-linux-gnu/bits/time64.h:
+/usr/include/x86_64-linux-gnu/bits/types/clock_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/clockid_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/time_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/timer_t.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-intn.h:
+/usr/include/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endianness.h:
+/usr/include/x86_64-linux-gnu/bits/byteswap.h:
+/usr/include/x86_64-linux-gnu/bits/uintn-identity.h:
+/usr/include/x86_64-linux-gnu/sys/select.h:
+/usr/include/x86_64-linux-gnu/bits/select.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h:
+/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+/usr/include/x86_64-linux-gnu/sys/uio.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h:
+/usr/include/x86_64-linux-gnu/bits/uio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/uio-ext.h:
+/usr/include/stdlib.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/x86_64-linux-gnu/bits/waitflags.h:
+/usr/include/x86_64-linux-gnu/bits/waitstatus.h:
+/usr/include/x86_64-linux-gnu/bits/floatn.h:
+/usr/include/x86_64-linux-gnu/bits/floatn-common.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+/usr/include/alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
+/usr/include/x86_64-linux-gnu/sys/socket.h:
+/usr/include/x86_64-linux-gnu/bits/socket.h:
+/usr/include/x86_64-linux-gnu/bits/socket_type.h:
+/usr/include/x86_64-linux-gnu/bits/sockaddr.h:
+/usr/include/x86_64-linux-gnu/asm/socket.h:
+/usr/include/asm-generic/socket.h:
+/usr/include/linux/posix_types.h:
+/usr/include/linux/stddef.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types_64.h:
+/usr/include/asm-generic/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/bitsperlong.h:
+/usr/include/asm-generic/bitsperlong.h:
+/usr/include/x86_64-linux-gnu/asm/sockios.h:
+/usr/include/asm-generic/sockios.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h:
+/usr/include/netdb.h:
+/usr/include/netinet/in.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h:
+/usr/include/x86_64-linux-gnu/bits/in.h:
+/usr/include/rpc/netdb.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigevent_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigval_t.h:
+/usr/include/x86_64-linux-gnu/bits/netdb.h:
+/usr/include/x86_64-linux-gnu/sys/param.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/syslimits.h:
+/usr/include/limits.h:
+/usr/include/x86_64-linux-gnu/bits/posix1_lim.h:
+/usr/include/x86_64-linux-gnu/bits/local_lim.h:
+/usr/include/linux/limits.h:
+/usr/include/x86_64-linux-gnu/bits/posix2_lim.h:
+/usr/include/x86_64-linux-gnu/bits/xopen_lim.h:
+/usr/include/signal.h:
+/usr/include/x86_64-linux-gnu/bits/signum.h:
+/usr/include/x86_64-linux-gnu/bits/signum-generic.h:
+/usr/include/x86_64-linux-gnu/bits/types/sig_atomic_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/siginfo_t.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-arch.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-consts.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-consts-arch.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigval_t.h:
+/usr/include/x86_64-linux-gnu/bits/sigevent-consts.h:
+/usr/include/x86_64-linux-gnu/bits/sigaction.h:
+/usr/include/x86_64-linux-gnu/bits/sigcontext.h:
+/usr/include/x86_64-linux-gnu/bits/types/stack_t.h:
+/usr/include/x86_64-linux-gnu/sys/ucontext.h:
+/usr/include/x86_64-linux-gnu/bits/sigstack.h:
+/usr/include/x86_64-linux-gnu/bits/ss_flags.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_sigstack.h:
+/usr/include/x86_64-linux-gnu/bits/sigthread.h:
+/usr/include/x86_64-linux-gnu/bits/signal_ext.h:
+/usr/include/x86_64-linux-gnu/bits/param.h:
+/usr/include/linux/param.h:
+/usr/include/x86_64-linux-gnu/asm/param.h:
+/usr/include/asm-generic/param.h:
+/usr/include/string.h:
+/usr/include/strings.h:
+/usr/include/sysexits.h:
+/usr/include/x86_64-linux-gnu/sys/time.h:
+/usr/include/stdio.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h:
+/usr/include/x86_64-linux-gnu/bits/stdio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/sys_errlist.h:
+/usr/include/x86_64-linux-gnu/bits/stdio.h:
+/usr/include/ctype.h:
+/usr/include/errno.h:
+/usr/include/x86_64-linux-gnu/bits/errno.h:
+/usr/include/linux/errno.h:
+/usr/include/x86_64-linux-gnu/asm/errno.h:
+/usr/include/asm-generic/errno.h:
+/usr/include/asm-generic/errno-base.h:
+/usr/include/x86_64-linux-gnu/bits/types/error_t.h:
+/usr/include/unistd.h:
+/usr/include/x86_64-linux-gnu/bits/posix_opt.h:
+/usr/include/x86_64-linux-gnu/bits/environments.h:
+/usr/include/x86_64-linux-gnu/bits/confname.h:
+/usr/include/x86_64-linux-gnu/bits/getopt_posix.h:
+/usr/include/x86_64-linux-gnu/bits/getopt_core.h:
+/usr/include/x86_64-linux-gnu/bits/unistd_ext.h:
+/usr/include/arpa/inet.h:
+/usr/include/assert.h:
+../include/sasl.h:
+../include/prop.h:
+../include/saslplug.h:
+../include/md5global.h:
+../include/md5.h:
+../include/hmac-md5.h:
+common.h:
diff --git a/sample/.deps/common.Po b/sample/.deps/common.Po
new file mode 100644
index 0000000..1a8180c
--- /dev/null
+++ b/sample/.deps/common.Po
@@ -0,0 +1,235 @@
+common.o: common.c /usr/include/stdc-predef.h ../config.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h /usr/include/features.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h \
+ /usr/include/x86_64-linux-gnu/sys/uio.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h \
+ /usr/include/x86_64-linux-gnu/bits/uio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/uio-ext.h /usr/include/stdlib.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h \
+ /usr/include/alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h \
+ /usr/include/x86_64-linux-gnu/sys/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/socket_type.h \
+ /usr/include/x86_64-linux-gnu/bits/sockaddr.h \
+ /usr/include/x86_64-linux-gnu/asm/socket.h \
+ /usr/include/asm-generic/socket.h /usr/include/linux/posix_types.h \
+ /usr/include/linux/stddef.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types_64.h \
+ /usr/include/asm-generic/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/bitsperlong.h \
+ /usr/include/asm-generic/bitsperlong.h \
+ /usr/include/x86_64-linux-gnu/asm/sockios.h \
+ /usr/include/asm-generic/sockios.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h \
+ /usr/include/netdb.h /usr/include/netinet/in.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-uintn.h \
+ /usr/include/x86_64-linux-gnu/bits/in.h /usr/include/rpc/netdb.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigevent_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigval_t.h \
+ /usr/include/x86_64-linux-gnu/bits/netdb.h \
+ /usr/include/x86_64-linux-gnu/sys/param.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/syslimits.h \
+ /usr/include/limits.h /usr/include/x86_64-linux-gnu/bits/posix1_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/local_lim.h \
+ /usr/include/linux/limits.h \
+ /usr/include/x86_64-linux-gnu/bits/posix2_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/xopen_lim.h /usr/include/signal.h \
+ /usr/include/x86_64-linux-gnu/bits/signum.h \
+ /usr/include/x86_64-linux-gnu/bits/signum-generic.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sig_atomic_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/siginfo_t.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-consts.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-consts-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigval_t.h \
+ /usr/include/x86_64-linux-gnu/bits/sigevent-consts.h \
+ /usr/include/x86_64-linux-gnu/bits/sigaction.h \
+ /usr/include/x86_64-linux-gnu/bits/sigcontext.h \
+ /usr/include/x86_64-linux-gnu/bits/types/stack_t.h \
+ /usr/include/x86_64-linux-gnu/sys/ucontext.h \
+ /usr/include/x86_64-linux-gnu/bits/sigstack.h \
+ /usr/include/x86_64-linux-gnu/bits/ss_flags.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_sigstack.h \
+ /usr/include/x86_64-linux-gnu/bits/sigthread.h \
+ /usr/include/x86_64-linux-gnu/bits/signal_ext.h \
+ /usr/include/x86_64-linux-gnu/bits/param.h /usr/include/linux/param.h \
+ /usr/include/x86_64-linux-gnu/asm/param.h \
+ /usr/include/asm-generic/param.h /usr/include/string.h \
+ /usr/include/strings.h /usr/include/sysexits.h \
+ /usr/include/x86_64-linux-gnu/sys/time.h /usr/include/stdio.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/sys_errlist.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio.h /usr/include/ctype.h \
+ ../include/sasl.h ../include/prop.h
+/usr/include/stdc-predef.h:
+../config.h:
+/usr/include/x86_64-linux-gnu/sys/types.h:
+/usr/include/features.h:
+/usr/include/x86_64-linux-gnu/sys/cdefs.h:
+/usr/include/x86_64-linux-gnu/bits/wordsize.h:
+/usr/include/x86_64-linux-gnu/bits/long-double.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs-64.h:
+/usr/include/x86_64-linux-gnu/bits/types.h:
+/usr/include/x86_64-linux-gnu/bits/timesize.h:
+/usr/include/x86_64-linux-gnu/bits/typesizes.h:
+/usr/include/x86_64-linux-gnu/bits/time64.h:
+/usr/include/x86_64-linux-gnu/bits/types/clock_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/clockid_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/time_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/timer_t.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-intn.h:
+/usr/include/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endianness.h:
+/usr/include/x86_64-linux-gnu/bits/byteswap.h:
+/usr/include/x86_64-linux-gnu/bits/uintn-identity.h:
+/usr/include/x86_64-linux-gnu/sys/select.h:
+/usr/include/x86_64-linux-gnu/bits/select.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h:
+/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+/usr/include/x86_64-linux-gnu/sys/uio.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h:
+/usr/include/x86_64-linux-gnu/bits/uio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/uio-ext.h:
+/usr/include/stdlib.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/x86_64-linux-gnu/bits/waitflags.h:
+/usr/include/x86_64-linux-gnu/bits/waitstatus.h:
+/usr/include/x86_64-linux-gnu/bits/floatn.h:
+/usr/include/x86_64-linux-gnu/bits/floatn-common.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+/usr/include/alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
+/usr/include/x86_64-linux-gnu/sys/socket.h:
+/usr/include/x86_64-linux-gnu/bits/socket.h:
+/usr/include/x86_64-linux-gnu/bits/socket_type.h:
+/usr/include/x86_64-linux-gnu/bits/sockaddr.h:
+/usr/include/x86_64-linux-gnu/asm/socket.h:
+/usr/include/asm-generic/socket.h:
+/usr/include/linux/posix_types.h:
+/usr/include/linux/stddef.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types_64.h:
+/usr/include/asm-generic/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/bitsperlong.h:
+/usr/include/asm-generic/bitsperlong.h:
+/usr/include/x86_64-linux-gnu/asm/sockios.h:
+/usr/include/asm-generic/sockios.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h:
+/usr/include/netdb.h:
+/usr/include/netinet/in.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h:
+/usr/include/x86_64-linux-gnu/bits/in.h:
+/usr/include/rpc/netdb.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigevent_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigval_t.h:
+/usr/include/x86_64-linux-gnu/bits/netdb.h:
+/usr/include/x86_64-linux-gnu/sys/param.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/syslimits.h:
+/usr/include/limits.h:
+/usr/include/x86_64-linux-gnu/bits/posix1_lim.h:
+/usr/include/x86_64-linux-gnu/bits/local_lim.h:
+/usr/include/linux/limits.h:
+/usr/include/x86_64-linux-gnu/bits/posix2_lim.h:
+/usr/include/x86_64-linux-gnu/bits/xopen_lim.h:
+/usr/include/signal.h:
+/usr/include/x86_64-linux-gnu/bits/signum.h:
+/usr/include/x86_64-linux-gnu/bits/signum-generic.h:
+/usr/include/x86_64-linux-gnu/bits/types/sig_atomic_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/siginfo_t.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-arch.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-consts.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-consts-arch.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigval_t.h:
+/usr/include/x86_64-linux-gnu/bits/sigevent-consts.h:
+/usr/include/x86_64-linux-gnu/bits/sigaction.h:
+/usr/include/x86_64-linux-gnu/bits/sigcontext.h:
+/usr/include/x86_64-linux-gnu/bits/types/stack_t.h:
+/usr/include/x86_64-linux-gnu/sys/ucontext.h:
+/usr/include/x86_64-linux-gnu/bits/sigstack.h:
+/usr/include/x86_64-linux-gnu/bits/ss_flags.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_sigstack.h:
+/usr/include/x86_64-linux-gnu/bits/sigthread.h:
+/usr/include/x86_64-linux-gnu/bits/signal_ext.h:
+/usr/include/x86_64-linux-gnu/bits/param.h:
+/usr/include/linux/param.h:
+/usr/include/x86_64-linux-gnu/asm/param.h:
+/usr/include/asm-generic/param.h:
+/usr/include/string.h:
+/usr/include/strings.h:
+/usr/include/sysexits.h:
+/usr/include/x86_64-linux-gnu/sys/time.h:
+/usr/include/stdio.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h:
+/usr/include/x86_64-linux-gnu/bits/stdio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/sys_errlist.h:
+/usr/include/x86_64-linux-gnu/bits/stdio.h:
+/usr/include/ctype.h:
+../include/sasl.h:
+../include/prop.h:
diff --git a/sample/.deps/http_digest_client.Po b/sample/.deps/http_digest_client.Po
new file mode 100644
index 0000000..9e60115
--- /dev/null
+++ b/sample/.deps/http_digest_client.Po
@@ -0,0 +1,173 @@
+http_digest_client.o: http_digest_client.c /usr/include/stdc-predef.h \
+ /usr/include/stdio.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/features.h /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/sys_errlist.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio.h /usr/include/stdlib.h \
+ /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h /usr/include/alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h /usr/include/string.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h \
+ /usr/include/strings.h /usr/include/unistd.h \
+ /usr/include/x86_64-linux-gnu/bits/posix_opt.h \
+ /usr/include/x86_64-linux-gnu/bits/environments.h \
+ /usr/include/x86_64-linux-gnu/bits/confname.h \
+ /usr/include/x86_64-linux-gnu/bits/getopt_posix.h \
+ /usr/include/x86_64-linux-gnu/bits/getopt_core.h \
+ /usr/include/x86_64-linux-gnu/bits/unistd_ext.h /usr/include/pwd.h \
+ /usr/include/x86_64-linux-gnu/sys/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h \
+ /usr/include/x86_64-linux-gnu/bits/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/socket_type.h \
+ /usr/include/x86_64-linux-gnu/bits/sockaddr.h \
+ /usr/include/x86_64-linux-gnu/asm/socket.h \
+ /usr/include/asm-generic/socket.h /usr/include/linux/posix_types.h \
+ /usr/include/linux/stddef.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types_64.h \
+ /usr/include/asm-generic/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/bitsperlong.h \
+ /usr/include/asm-generic/bitsperlong.h \
+ /usr/include/x86_64-linux-gnu/asm/sockios.h \
+ /usr/include/asm-generic/sockios.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h \
+ /usr/include/netinet/in.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-uintn.h \
+ /usr/include/x86_64-linux-gnu/bits/in.h /usr/include/arpa/inet.h \
+ /usr/include/netdb.h /usr/include/rpc/netdb.h \
+ /usr/include/x86_64-linux-gnu/bits/netdb.h ../include/sasl.h \
+ ../include/prop.h
+/usr/include/stdc-predef.h:
+/usr/include/stdio.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/features.h:
+/usr/include/x86_64-linux-gnu/sys/cdefs.h:
+/usr/include/x86_64-linux-gnu/bits/wordsize.h:
+/usr/include/x86_64-linux-gnu/bits/long-double.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs-64.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h:
+/usr/include/x86_64-linux-gnu/bits/types.h:
+/usr/include/x86_64-linux-gnu/bits/timesize.h:
+/usr/include/x86_64-linux-gnu/bits/typesizes.h:
+/usr/include/x86_64-linux-gnu/bits/time64.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h:
+/usr/include/x86_64-linux-gnu/bits/stdio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/sys_errlist.h:
+/usr/include/x86_64-linux-gnu/bits/stdio.h:
+/usr/include/stdlib.h:
+/usr/include/x86_64-linux-gnu/bits/waitflags.h:
+/usr/include/x86_64-linux-gnu/bits/waitstatus.h:
+/usr/include/x86_64-linux-gnu/bits/floatn.h:
+/usr/include/x86_64-linux-gnu/bits/floatn-common.h:
+/usr/include/x86_64-linux-gnu/sys/types.h:
+/usr/include/x86_64-linux-gnu/bits/types/clock_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/clockid_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/time_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/timer_t.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-intn.h:
+/usr/include/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endianness.h:
+/usr/include/x86_64-linux-gnu/bits/byteswap.h:
+/usr/include/x86_64-linux-gnu/bits/uintn-identity.h:
+/usr/include/x86_64-linux-gnu/sys/select.h:
+/usr/include/x86_64-linux-gnu/bits/select.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h:
+/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+/usr/include/alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
+/usr/include/string.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+/usr/include/strings.h:
+/usr/include/unistd.h:
+/usr/include/x86_64-linux-gnu/bits/posix_opt.h:
+/usr/include/x86_64-linux-gnu/bits/environments.h:
+/usr/include/x86_64-linux-gnu/bits/confname.h:
+/usr/include/x86_64-linux-gnu/bits/getopt_posix.h:
+/usr/include/x86_64-linux-gnu/bits/getopt_core.h:
+/usr/include/x86_64-linux-gnu/bits/unistd_ext.h:
+/usr/include/pwd.h:
+/usr/include/x86_64-linux-gnu/sys/socket.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h:
+/usr/include/x86_64-linux-gnu/bits/socket.h:
+/usr/include/x86_64-linux-gnu/bits/socket_type.h:
+/usr/include/x86_64-linux-gnu/bits/sockaddr.h:
+/usr/include/x86_64-linux-gnu/asm/socket.h:
+/usr/include/asm-generic/socket.h:
+/usr/include/linux/posix_types.h:
+/usr/include/linux/stddef.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types_64.h:
+/usr/include/asm-generic/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/bitsperlong.h:
+/usr/include/asm-generic/bitsperlong.h:
+/usr/include/x86_64-linux-gnu/asm/sockios.h:
+/usr/include/asm-generic/sockios.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h:
+/usr/include/netinet/in.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h:
+/usr/include/x86_64-linux-gnu/bits/in.h:
+/usr/include/arpa/inet.h:
+/usr/include/netdb.h:
+/usr/include/rpc/netdb.h:
+/usr/include/x86_64-linux-gnu/bits/netdb.h:
+../include/sasl.h:
+../include/prop.h:
diff --git a/sample/.deps/sample-client.Po b/sample/.deps/sample-client.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/sample/.deps/sample-client.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/sample/.deps/sample-server.Po b/sample/.deps/sample-server.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/sample/.deps/sample-server.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/sample/.deps/server.Po b/sample/.deps/server.Po
new file mode 100644
index 0000000..954a3d9
--- /dev/null
+++ b/sample/.deps/server.Po
@@ -0,0 +1,261 @@
+server.o: server.c /usr/include/stdc-predef.h ../config.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h /usr/include/features.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h \
+ /usr/include/x86_64-linux-gnu/sys/uio.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h \
+ /usr/include/x86_64-linux-gnu/bits/uio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/uio-ext.h /usr/include/stdlib.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h \
+ /usr/include/alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h \
+ /usr/include/x86_64-linux-gnu/sys/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/socket.h \
+ /usr/include/x86_64-linux-gnu/bits/socket_type.h \
+ /usr/include/x86_64-linux-gnu/bits/sockaddr.h \
+ /usr/include/x86_64-linux-gnu/asm/socket.h \
+ /usr/include/asm-generic/socket.h /usr/include/linux/posix_types.h \
+ /usr/include/linux/stddef.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/posix_types_64.h \
+ /usr/include/asm-generic/posix_types.h \
+ /usr/include/x86_64-linux-gnu/asm/bitsperlong.h \
+ /usr/include/asm-generic/bitsperlong.h \
+ /usr/include/x86_64-linux-gnu/asm/sockios.h \
+ /usr/include/asm-generic/sockios.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h \
+ /usr/include/netdb.h /usr/include/netinet/in.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-uintn.h \
+ /usr/include/x86_64-linux-gnu/bits/in.h /usr/include/rpc/netdb.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigevent_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigval_t.h \
+ /usr/include/x86_64-linux-gnu/bits/netdb.h \
+ /usr/include/x86_64-linux-gnu/sys/param.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/syslimits.h \
+ /usr/include/limits.h /usr/include/x86_64-linux-gnu/bits/posix1_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/local_lim.h \
+ /usr/include/linux/limits.h \
+ /usr/include/x86_64-linux-gnu/bits/posix2_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/xopen_lim.h /usr/include/signal.h \
+ /usr/include/x86_64-linux-gnu/bits/signum.h \
+ /usr/include/x86_64-linux-gnu/bits/signum-generic.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sig_atomic_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/siginfo_t.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-consts.h \
+ /usr/include/x86_64-linux-gnu/bits/siginfo-consts-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigval_t.h \
+ /usr/include/x86_64-linux-gnu/bits/sigevent-consts.h \
+ /usr/include/x86_64-linux-gnu/bits/sigaction.h \
+ /usr/include/x86_64-linux-gnu/bits/sigcontext.h \
+ /usr/include/x86_64-linux-gnu/bits/types/stack_t.h \
+ /usr/include/x86_64-linux-gnu/sys/ucontext.h \
+ /usr/include/x86_64-linux-gnu/bits/sigstack.h \
+ /usr/include/x86_64-linux-gnu/bits/ss_flags.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_sigstack.h \
+ /usr/include/x86_64-linux-gnu/bits/sigthread.h \
+ /usr/include/x86_64-linux-gnu/bits/signal_ext.h \
+ /usr/include/x86_64-linux-gnu/bits/param.h /usr/include/linux/param.h \
+ /usr/include/x86_64-linux-gnu/asm/param.h \
+ /usr/include/asm-generic/param.h /usr/include/string.h \
+ /usr/include/strings.h /usr/include/sysexits.h \
+ /usr/include/x86_64-linux-gnu/sys/time.h /usr/include/stdio.h \
+ /usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/sys_errlist.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio.h /usr/include/ctype.h \
+ /usr/include/errno.h /usr/include/x86_64-linux-gnu/bits/errno.h \
+ /usr/include/linux/errno.h /usr/include/x86_64-linux-gnu/asm/errno.h \
+ /usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h \
+ /usr/include/x86_64-linux-gnu/bits/types/error_t.h /usr/include/unistd.h \
+ /usr/include/x86_64-linux-gnu/bits/posix_opt.h \
+ /usr/include/x86_64-linux-gnu/bits/environments.h \
+ /usr/include/x86_64-linux-gnu/bits/confname.h \
+ /usr/include/x86_64-linux-gnu/bits/getopt_posix.h \
+ /usr/include/x86_64-linux-gnu/bits/getopt_core.h \
+ /usr/include/x86_64-linux-gnu/bits/unistd_ext.h /usr/include/arpa/inet.h \
+ ../include/sasl.h ../include/prop.h common.h
+/usr/include/stdc-predef.h:
+../config.h:
+/usr/include/x86_64-linux-gnu/sys/types.h:
+/usr/include/features.h:
+/usr/include/x86_64-linux-gnu/sys/cdefs.h:
+/usr/include/x86_64-linux-gnu/bits/wordsize.h:
+/usr/include/x86_64-linux-gnu/bits/long-double.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs-64.h:
+/usr/include/x86_64-linux-gnu/bits/types.h:
+/usr/include/x86_64-linux-gnu/bits/timesize.h:
+/usr/include/x86_64-linux-gnu/bits/typesizes.h:
+/usr/include/x86_64-linux-gnu/bits/time64.h:
+/usr/include/x86_64-linux-gnu/bits/types/clock_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/clockid_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/time_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/timer_t.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-intn.h:
+/usr/include/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endianness.h:
+/usr/include/x86_64-linux-gnu/bits/byteswap.h:
+/usr/include/x86_64-linux-gnu/bits/uintn-identity.h:
+/usr/include/x86_64-linux-gnu/sys/select.h:
+/usr/include/x86_64-linux-gnu/bits/select.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h:
+/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+/usr/include/x86_64-linux-gnu/sys/uio.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_iovec.h:
+/usr/include/x86_64-linux-gnu/bits/uio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/uio-ext.h:
+/usr/include/stdlib.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/x86_64-linux-gnu/bits/waitflags.h:
+/usr/include/x86_64-linux-gnu/bits/waitstatus.h:
+/usr/include/x86_64-linux-gnu/bits/floatn.h:
+/usr/include/x86_64-linux-gnu/bits/floatn-common.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+/usr/include/alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
+/usr/include/x86_64-linux-gnu/sys/socket.h:
+/usr/include/x86_64-linux-gnu/bits/socket.h:
+/usr/include/x86_64-linux-gnu/bits/socket_type.h:
+/usr/include/x86_64-linux-gnu/bits/sockaddr.h:
+/usr/include/x86_64-linux-gnu/asm/socket.h:
+/usr/include/asm-generic/socket.h:
+/usr/include/linux/posix_types.h:
+/usr/include/linux/stddef.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/posix_types_64.h:
+/usr/include/asm-generic/posix_types.h:
+/usr/include/x86_64-linux-gnu/asm/bitsperlong.h:
+/usr/include/asm-generic/bitsperlong.h:
+/usr/include/x86_64-linux-gnu/asm/sockios.h:
+/usr/include/asm-generic/sockios.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_osockaddr.h:
+/usr/include/netdb.h:
+/usr/include/netinet/in.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h:
+/usr/include/x86_64-linux-gnu/bits/in.h:
+/usr/include/rpc/netdb.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigevent_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigval_t.h:
+/usr/include/x86_64-linux-gnu/bits/netdb.h:
+/usr/include/x86_64-linux-gnu/sys/param.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/syslimits.h:
+/usr/include/limits.h:
+/usr/include/x86_64-linux-gnu/bits/posix1_lim.h:
+/usr/include/x86_64-linux-gnu/bits/local_lim.h:
+/usr/include/linux/limits.h:
+/usr/include/x86_64-linux-gnu/bits/posix2_lim.h:
+/usr/include/x86_64-linux-gnu/bits/xopen_lim.h:
+/usr/include/signal.h:
+/usr/include/x86_64-linux-gnu/bits/signum.h:
+/usr/include/x86_64-linux-gnu/bits/signum-generic.h:
+/usr/include/x86_64-linux-gnu/bits/types/sig_atomic_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/siginfo_t.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-arch.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-consts.h:
+/usr/include/x86_64-linux-gnu/bits/siginfo-consts-arch.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigval_t.h:
+/usr/include/x86_64-linux-gnu/bits/sigevent-consts.h:
+/usr/include/x86_64-linux-gnu/bits/sigaction.h:
+/usr/include/x86_64-linux-gnu/bits/sigcontext.h:
+/usr/include/x86_64-linux-gnu/bits/types/stack_t.h:
+/usr/include/x86_64-linux-gnu/sys/ucontext.h:
+/usr/include/x86_64-linux-gnu/bits/sigstack.h:
+/usr/include/x86_64-linux-gnu/bits/ss_flags.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_sigstack.h:
+/usr/include/x86_64-linux-gnu/bits/sigthread.h:
+/usr/include/x86_64-linux-gnu/bits/signal_ext.h:
+/usr/include/x86_64-linux-gnu/bits/param.h:
+/usr/include/linux/param.h:
+/usr/include/x86_64-linux-gnu/asm/param.h:
+/usr/include/asm-generic/param.h:
+/usr/include/string.h:
+/usr/include/strings.h:
+/usr/include/sysexits.h:
+/usr/include/x86_64-linux-gnu/sys/time.h:
+/usr/include/stdio.h:
+/usr/lib/gcc/x86_64-linux-gnu/10/include/stdarg.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h:
+/usr/include/x86_64-linux-gnu/bits/stdio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/sys_errlist.h:
+/usr/include/x86_64-linux-gnu/bits/stdio.h:
+/usr/include/ctype.h:
+/usr/include/errno.h:
+/usr/include/x86_64-linux-gnu/bits/errno.h:
+/usr/include/linux/errno.h:
+/usr/include/x86_64-linux-gnu/asm/errno.h:
+/usr/include/asm-generic/errno.h:
+/usr/include/asm-generic/errno-base.h:
+/usr/include/x86_64-linux-gnu/bits/types/error_t.h:
+/usr/include/unistd.h:
+/usr/include/x86_64-linux-gnu/bits/posix_opt.h:
+/usr/include/x86_64-linux-gnu/bits/environments.h:
+/usr/include/x86_64-linux-gnu/bits/confname.h:
+/usr/include/x86_64-linux-gnu/bits/getopt_posix.h:
+/usr/include/x86_64-linux-gnu/bits/getopt_core.h:
+/usr/include/x86_64-linux-gnu/bits/unistd_ext.h:
+/usr/include/arpa/inet.h:
+../include/sasl.h:
+../include/prop.h:
+common.h:
diff --git a/sample/Makefile b/sample/Makefile
new file mode 100644
index 0000000..99b5eaf
--- /dev/null
+++ b/sample/Makefile
@@ -0,0 +1,28 @@
+
+CC=gcc
+
+PROGRAM=client server
+
+LIBSSL_LIBS=-lsasl2
+
+FINAL_LIBS+=$(LIBSSL_LIBS)
+
+FINAL_FLAG+=-Wimplicit-function-declaration $(FINAL_LIBS)
+
+all: $(PROGRAM)
+	@echo ""
+	@echo "build seccess!"
+	@echo ""
+
+client:sample-client.c
+	$(CC) -c sample-client.c $(FINAL_FLAG)
+	$(CC) -o client sample-client.o $(FINAL_FLAG)
+
+server:sample-server.c
+	$(CC) -c sample-server.c $(FINAL_FLAG)
+	$(CC) -o server sample-server.o $(FINAL_FLAG)
+
+clean:
+	rm *.o server client
+
+
diff --git a/sample/sample-client.c b/sample/sample-client.c
new file mode 100644
index 0000000..cf374a7
--- /dev/null
+++ b/sample/sample-client.c
@@ -0,0 +1,106 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sasl/sasl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <linux/in.h>
+#include <string.h>
+
+#define SAMPLE_SEC_BUF_SIZE (2048)
+
+char buf[SAMPLE_SEC_BUF_SIZE];
+
+static sasl_conn_t *conn = NULL;
+char *realm = "DOMAIN.COM";
+char *mech = "gssapi";
+char *iplocal = "127.0.0.1";
+char *ipremote = "127.0.0.1";
+char *searchpath = NULL;
+char *service = "zeekling";
+int cfd;
+
+int init_sasl() {
+	int result = sasl_client_init(NULL);
+    if (result != SASL_OK) {
+		printf("Initializing libsasl");
+		return -1;
+	}
+	return 0;
+}
+
+int connect_server() {
+	struct sockaddr_in s_add,c_add;
+	unsigned short portnum=2345;
+	printf("Hello,welcome to client !\r\n");
+	cfd = socket(AF_INET, SOCK_STREAM, 0);
+	if(-1 == cfd) {
+	    printf("socket fail ! \r\n");
+	    return 1;
+	}
+	printf("socket ok !\r\n");
+	bzero(&s_add,sizeof(struct sockaddr_in));
+	s_add.sin_family=AF_INET;
+	s_add.sin_addr.s_addr= inet_addr("127.0.0.1");
+	s_add.sin_port=htons(portnum);
+
+	if(-1 == connect(cfd,(struct sockaddr *)(&s_add), sizeof(struct sockaddr))) {
+	    printf("connect fail !\r\n");
+		return 1;
+	}
+	printf("connect ok !\r\n");
+	return 0;
+}
+
+int auth_sever() {
+
+	return 0;
+}
+
+int main() {
+    int result;
+	const char *data;
+    const char *chosenmech;
+	int serverlast = 0;
+	unsigned len;
+	char *fqdn = "";
+	char *userid = NULL;
+	char *authid = NULL;
+
+	int recbytes;
+	int sin_size;
+	char buffer[1024]={0};
+
+	if (connect_server() != 0)
+	{
+		return 1;
+	}
+
+	if (init_sasl() != 0) {
+		return 1;
+	}
+
+	if(-1 == (recbytes = read(cfd, buffer, 1024))) {
+	    printf("read data fail !\r\n");
+		return -1;
+	}
+
+	if (strcmp(buffer, "need_auth") == 0 && auth_sever() != 0) {
+		printf("auth failed");
+		return -1;
+	}
+	printf("auth ok\r\nREC:\r\n");
+
+	buffer[recbytes]='\0';
+	printf("%s\r\n",buffer);
+
+	getchar();
+	close(cfd);
+
+	if (init_sasl() != 0) {
+		return 1;
+	}
+	return 0;
+}
+
+
diff --git a/sample/sample-server.c b/sample/sample-server.c
new file mode 100644
index 0000000..626d242
--- /dev/null
+++ b/sample/sample-server.c
@@ -0,0 +1,124 @@
+#include <stdlib.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <linux/in.h>
+#include <string.h>
+#include <sasl/sasl.h>
+
+int sfp; /* 定义两个描述符 */
+struct sockaddr_in s_add,c_add;
+int sin_size;
+
+typedef struct kClient {
+	int fp;
+	int auth_complete;
+	int begin_auth;
+} kClient;
+
+int listen_port() {
+	unsigned short portnum=2345; /* 服务端使用端口 */
+
+	sfp = socket(AF_INET, SOCK_STREAM, 0);
+	if(-1 == sfp) {
+		printf("socket fail ! \n");
+		return -1;
+	}
+
+	/* 填充服务器端口地址信息，以便下面使用此地址和端口监听 */
+	bzero(&s_add,sizeof(struct sockaddr_in));
+	s_add.sin_family=AF_INET;
+	s_add.sin_addr.s_addr=htonl(INADDR_ANY); /* 这里地址使用全0，即所有 */
+	s_add.sin_port=htons(portnum);
+	/* 使用bind进行绑定端口 */
+	if(-1 == bind(sfp,(struct sockaddr *)(&s_add), sizeof(struct sockaddr)))
+	{
+		printf("bind fail !\n");
+		return -1;
+	}
+	/* 开始监听相应的端口 */
+	if(-1 == listen(sfp,5))
+	{
+		printf("listen fail !\n");
+		return -1;
+	}
+	printf("Hello,welcome to my server !\n");
+	return 0;
+}
+
+kClient *createClient(int fp) {
+	kClient *c = malloc(sizeof(kClient));
+	c->fp = fp;
+	c->auth_complete = -1;
+	c->begin_auth = -1;
+	return c;
+}
+
+int auth_client(kClient *c) {
+
+	return 0;
+}
+
+void readQuery(kClient *c) {
+	char buffer[1024]={0};
+	int recbytes;
+	/* 这里使用write向客户端发送信息，也可以尝试使用其他函数实现 */
+	if(-1 == write(c->fp,"need_auth",9))
+	{
+		printf("write fail!\n");
+		close(c->fp);
+		return;
+	}
+	printf("write ok!\n");
+	while (1) {
+		if(-1 == (recbytes = read(c->fp,buffer,1024))) {
+			printf("read data fail !\n");
+			close(c->fp);
+		}
+		if (c->auth_complete != 1 && auth_client(c) != 0) {
+			printf("auth failed!\n");
+            break;
+		}
+		if(-1 == write(c->fp,"need_auth",9)) {
+			printf("write fail!\n");
+			break;
+		}
+	}
+	close(c->fp);
+}
+
+
+int init_sasl() {
+	int result = sasl_server_init(NULL, "sample");
+	if (result != SASL_OK) {
+		printf("Initializing libsasl");
+		return 1;
+	}
+	return 0;
+}
+
+int main()
+{
+	if (listen_port() != 0 && init_sasl() != 0)
+	{
+		return 1;
+	}
+	while(1)
+	{
+		sin_size = sizeof(struct sockaddr_in);
+		int nfp = accept(sfp, (struct sockaddr *)(&c_add), &sin_size);
+		if(-1 == nfp)
+		{
+			printf("accept fail !\r\n");
+			return -1;
+		}
+
+		printf("accept ok!\r\nServer start get connect from %#x : %#x\r\n",ntohl(c_add.sin_addr.s_addr),ntohs(c_add.sin_port));
+		kClient *c = createClient(nfp);
+		readQuery(c);
+	}
+	close(sfp);
+	return 0;
+}
+
+