【unp】unix网络编程卷1-->环境搭建(ubuntu14.04)

学习unp网络编程，树上的例子均存在#include "unp.h"，故需要对环境进行配置。

1. 到资源页下载unpv13e 

 

2. 解压并将unpv13e 移动到相应的文件夹下

 

3. 编译

1 >$ cd unpv13e   
2 >~unpv13e/$ ./configure  
3   
4 >~unpv13e/$ cd lib  
5 >~unpv13e/lib/$ make  
6   
7 >~unpv13e/lib/$ cd ../libfree  
8 >~unpv13e/libfree/$ make

如若出现以下问题:

 1 gcc -I../lib -g -O2 -D_REENTRANT -Wall   -c -o inet_ntop.o inet_ntop.c  
 2 inet_ntop.c: In function ‘inet_ntop’:  
 3 inet_ntop.c:60:9: error: argument ‘size’ doesn’t match prototype  
 4   size_t size;  
 5          ^  
 6 In file included from inet_ntop.c:27:0:  
 7 /usr/include/arpa/inet.h:64:20: error: prototype declaration  
 8  extern const char *inet_ntop (int __af, const void *__restrict __cp,  
 9                     ^  
10 make: *** [inet_ntop.o] Error 1

则需要:

 1 >~unpv13e/libfree/$ vim inet_ntop.c  //将第60行的 size_t size 改成 socklen_t size;  
 2 >~unpv13e/libfree/$ make // 改变完后重新make  
 3 >~unpv13e/libfree/$ cd ../libgai  
 4 >~unpv13e/libgai/$ make   //以下只是warning, 乎略之  
 5 /usr/include/arpa/inet.h: In function ‘inet_ntop’:  
 6 inet_ntop.c:152:23: warning: ‘best.len’ may be used uninitialized in this function [-Wmaybe-uninitialized]  
 7    if (best.base == -1 || cur.len > best.len)  
 8                        ^  
 9 inet_ntop.c:123:28: note: ‘best.len’ was declared here  
10   struct { int base, len; } best, cur;  
11                             ^  
12 gcc -I../lib -g -O2 -D_REENTRANT -Wall   -c -o inet_pton.o inet_pton.c  
13 ar rv ../libunp.a in_cksum.o inet_ntop.o inet_pton.o  
14 a - in_cksum.o  
15 a - inet_ntop.o  
16 a - inet_pton.o  
17 ranlib ../libunp.a

至此，编译成功生成静态库libunp.a

 

4. 将生成的libunp.a复制到/usr/lib下

1 >~unpv13e/libgai/$ cd ..  
2 >~unpv13e/$ sudo cp libunp.a /usr/lib


5. 修改unpv13e/lib/unp.h并复制

1 >~unpv13e/$ vim lib/unp.h  // 将#include "../config.h" 改成 #include "config.h"  
2 >~unpv13e/$  sudo cp lib/unp.h /usr/include  
3 >~unpv13e/$ sudo cp config.h /usr/include


6. 编译例子

1 >~unpv13e/$  cd intro  
2 >~unpv13e/$  gcc daytimetcpcli.c -o cli -lunp



 

 

编译成功则大功告成。

posted @ 2018-01-21 13:56  习惯就好233  阅读(456)  评论(0)  编辑  收藏  举报