This software is copyright 1999 by J. David Blackstone. Permission is granted to redistribute and modify this software under the terms of the GNU General Public License, available at http://www.gnu.org/ .
If you use this software or examine the code, I would appreciate knowing and would be overjoyed to hear about it at [email protected] .
This software is not production quality. It comes with no warranty of any kind, not even an implied warranty of fitness for a particular purpose. I am not responsible for the damage that will likely result if you use this software on your computer system.
I wrote this webserver for an assignment in my networking class in 1999. We were told that at a bare minimum the server had to serve pages, and told that we would get extra credit for doing "extras." Perl had introduced me to a whole lot of UNIX functionality (I learned sockets and fork from Perl!), and O'Reilly's lion book on UNIX system calls plus O'Reilly's books on CGI and writing web clients in Perl got me thinking and I realized I could make my webserver support CGI with little trouble.
Now, if you're a member of the Apache core group, you might not be impressed. But my professor was blown over. Try the color.cgi sample script and type in "chartreuse." Made me seem smarter than I am, at any rate. :)
Apache it's not. But I do hope that this program is a good educational tool for those interested in http/socket programming, as well as UNIX system calls. (There's some textbook uses of pipes, environment variables, forks, and so on.)
One last thing: if you look at my webserver or (are you out of mind?!?) use it, I would just be overjoyed to hear about it. Please email me. I probably won't really be releasing major updates, but if I help you learn something, I'd love to know!
Happy hacking!
J. David Blackstone
这个源码剖析本来是写我公众号上的，但想着放GitHub上也没啥问题，其中httpd_o.c是1999年的源码，httpd.c是我个人的魔改版本，不同之处有：
- 格式化
- 修改了一些早期写法
- 修正了一些不规范的写法，让warning少一点
- 进行了一些个人恶趣味的压行
- 注释掉了cgi部分，有cgi我显示不出网页，没cgi一切就都好起来了，至于为什么不写cgi的其他原因见剖析
- 其余不同见剖析部分
makefile文件我也改了，如果有不同的话建议自行寻找源码
编译环境：WSL下Ubuntu18.04 gcc 7.3.0