boa的移植
在/home目录下建立BOA文件夹
[root@localhost home]# mkdir boa
下载官方源码到BOA文件夹，并解压，得到boa-0.94.13
[root@localhost boa]# tar -zxvf boa-0.94.13.tar.gz
进入./boa-0.94.13/src，
[root@localhost boa]# cd boa-0.94.13/src
运行./configure，得到Makefile
[root@localhost src]# ./configure
修改Makefile:(一定要改为2.95.3,不然会编译不过去)
将CC = gcc 改为CC = /usr/local/arm/2.95.3/bin/arm-linux-gcc
将CPP= gcc -E 改为：CPP = /usr/local/arm/2.95.3/bin/arm-linux-gcc -E
保存后，退出
[root@localhost src]# gedit boa.c
将此句注释掉，如下：
/* if (setuid(0) != -1) {
DIE("icky Linux kernel bug!");
}*/
[root@localhost src]# make
文件瘦身(可选)
[root@localhost src]# /usr/local/arm/2.95.3/bin/arm-linux-strip boa
arm-linux-readelf -d boa，察看共享库（可以略过不做）
将boa拷贝到网络文件系统的/bin
[root@localhost src]#cp boa /nfs/bin
将boa.conf拷贝到nfs/etc/boa/下，在此，附件提供一个修改好的boa.conf
boa.conf修改后的内容如下：
# Boa v0.94 configuration file
# File format has not changed from 0.93
# File format has changed little from 0.92
# version changes are noted in the comments
#
# The Boa configuration file is parsed with a lex/yacc or flex/bison
# generated parser. If it reports an error, the line number will be
# provided; it should be easy to spot. The syntax of each of these
# rules is very simple, and they can occur in any order. Where possible
# these directives mimic those of NCSA httpd 1.3; I saw no reason to
# introduce gratuitous differences.
# $Id: boa.conf,v 1.25 2002/03/22 04:33:09 jnelson Exp $
# The "ServerRoot" is not in this configuration file. It can be compiled
# into the server (see defines.h) or specified on the command line with
# the -c option, for example:
#
# boa -c /usr/local/boa
# Port: The port Boa runs on. The default port for http servers is 80.
# If it is less than 1024, the server must be started as root.
Port 80
# Listen: the Internet address to bind(2) to. If you leave it out,
# it takes the behavior before 0.93.17.2, which is to bind to all
# addresses (INADDR_ANY). You only get one "Listen" directive,
# if you want service on multiple IP addresses, you have three choices:
# 1. Run boa without a "Listen" directive
# a. All addresses are treated the same; makes sense if the
addresses
# are localhost, ppp, and eth0.
# b. Use the VirtualHost directive below to point requests to
different
# files. Should be good for a very large number of addresses
(web
# hosting clients).
# 2. Run one copy of boa per IP address, each has its own
configuration
# with a "Listen" directive. No big deal up to a few tens of
addresses.
# Nice separation between clients.
# The name you provide gets run through inet_aton(3), so you have to use
dotted
# quad notation. This configuration is too important to trust some DNS.
#Listen 192.68.0.5
# User: The name or UID the server should run as.
# Group: The group name or GID the server should run as.
User 0
#Group nogroup
Group 0
# ServerAdmin: The email address where server problems should be sent.
# Note: this is not currently used, except as an environment variable
# for CGIs.
#ServerAdmin root@localhost
# ErrorLog: The location of the error log file. If this does not start
# with /, it is considered relative to the server root.
# Set to /dev/null if you don't want errors logged.
# If unset, defaults to /dev/stderr
#ErrorLog /var/log/boa/error_log
# Please NOTE: Sending the logs to a pipe ('|'), as shown below,
# is somewhat experimental and might fail under heavy load.
# "Usual libc implementations of printf will stall the whole
# process if the receiving end of a pipe stops reading."
#ErrorLog "|/usr/sbin/cronolog --symlink=/var/log/boa/error_log
/var/log/boa/error-%Y%m%d.log"
# AccessLog: The location of the access log file. If this does not
# start with /, it is considered relative to the server root.
# Comment out or set to /dev/null (less effective) to disable
# Access logging.
#AccessLog /var/log/boa/access_log
# Please NOTE: Sending the logs to a pipe ('|'), as shown below,
# is somewhat experimental and might fail under heavy load.
# "Usual libc implementations of printf will stall the whole
# process if the receiving end of a pipe stops reading."
#AccessLog "|/usr/sbin/cronolog --symlink=/var/log/boa/access_log
/var/log/boa/access-%Y%m%d.log"
# UseLocaltime: Logical switch. Uncomment to use localtime
# instead of UTC time
#UseLocaltime
# VerboseCGILogs: this is just a logical switch.
# It simply notes the start and stop times of cgis in the error log
# Comment out to disable.
#VerboseCGILogs
# ServerName: the name of this server that should be sent back to
# clients if different than that returned by gethostname + gethostbyname
ServerName jimmy
# VirtualHost: a logical switch.
# Comment out to disable.
# Given DocumentRoot /var/www, requests on interface 'A' or IP 'IP-A'
# become /var/www/IP-A.
# Example: http://localhost/ becomes /var/www/127.0.0.1
#
# Not used until version 0.93.17.2. This "feature" also breaks commonlog
# output rules, it prepends the interface number to each access_log line.
# You are expected to fix that problem with a postprocessing script.
#VirtualHost
# DocumentRoot: The root directory of the HTML documents.
# Comment out to disable server non user files.
DocumentRoot /var/www
# UserDir: The name of the directory which is appended onto a user's home
# directory if a ~user request is recieved.
UserDir public_html
# DirectoryIndex: Name of the file to use as a pre-written HTML
# directory index. Please MAKE AND USE THESE FILES. On the
# fly creation of directory indexes can be _slow_.
# Comment out to always use DirectoryMaker
DirectoryIndex index.html
# DirectoryMaker: Name of program used to create a directory listing.
# Comment out to disable directory listings. If both this and
# DirectoryIndex are commented out, accessing a directory will give
# an error (though accessing files in the directory are still ok).
DirectoryMaker /usr/lib/boa/boa_indexer
# DirectoryCache: If DirectoryIndex doesn't exist, and DirectoryMaker
# has been commented out, the the on-the-fly indexing of Boa can be used
# to generate indexes of directories. Be warned that the output is
# extremely minimal and can cause delays when slow disks are used.
# Note: The DirectoryCache must be writable by the same user/group that
# Boa runs as.
# DirectoryCache /var/spool/boa/dircache
# KeepAliveMax: Number of KeepAlive requests to allow per connection
# Comment out, or set to 0 to disable keepalive processing
KeepAliveMax 1000
# KeepAliveTimeout: seconds to wait before keepalive connection times out
KeepAliveTimeout 10
# MimeTypes: This is the file that is used to generate mime type pairs
# and Content-Type fields for boa.
# Set to /dev/null if you do not want to load a mime types file.
# Do *not* comment out (better use AddType!)
MimeTypes /etc/mime.types
# DefaultType: MIME type used if the file extension is unknown, or there
# is no file extension.
DefaultType text/html
# CGIPath: The value of the $PATH environment variable given to CGI
progs.
CGIPath /bin:/usr/bin:/usr/local/bin
# SinglePostLimit: The maximum allowable number of bytes in
# a single POST. Default is normally 1MB.
# AddType: adds types without editing mime.types
# Example: AddType type extension [extension ...]
# Uncomment the next line if you want .cgi files to execute from anywhere
#AddType application/x-httpd-cgi cgi
# Redirect, Alias, and ScriptAlias all have the same semantics -- they
# match the beginning of a request and take appropriate action. Use
# Redirect for other servers, Alias for the same server, and ScriptAlias
# to enable directories for script execution.
# Redirect allows you to tell clients about documents which used to exist
in
# your server's namespace, but do not anymore. This allows you to tell
the
# clients where to look for the relocated document.
# Example: Redirect /bar http://elsewhere/feh/bar
# Aliases: Aliases one path to another.
# Example: Alias /path1/bar /path2/foo
Alias /doc /usr/doc
# ScriptAlias: Maps a virtual path to a directory for serving scripts
# Example: ScriptAlias /htbin/ /www/htbin/
ScriptAlias /cgi-bin/ /var/www/cgi-bin/
ScriptAlias /index.html /var/www/index.html
创建日志文件所在目录/nfs/var/log/boa
创建HTML文档的主目录/nfs/var/www
**静态测试：
将网页放置在/nfs/var/www/目录下:
笔者在此处放置的是index.html文档（默认文件名，文档内容可以修改）
开发板加电，正常启动后，进入/bin，再输入boa,如下：
然后在地址栏里输入：http://192.168.0.2/
就会出现《如何看待金融危机》这篇文章。
**CGI编程：
1、编写HelloCGI.c程序
[root@localhost boa-0.94.13]# gedit helloCGI.c
(主程序的程序开头一定要用Tab，而不是空格，不然编译可能不通过)
内容如下：
#include<stdio.h>
#include<stdlib.h>
int main(void)
{
printf("Content-type: text/html\n\n");
printf("<html>\n");
printf("<head><title>CGI Output</title></head>\n");
printf("<body>\n");
printf("<h1>Hello,world.</h1>\n");
printf("<body>\n");
printf("</html>\n");
exit(0);
}
2.交叉编译生成CGI程序
[root@localhost boa-0.94.13]# /usr/local/arm/2.95.3/bin/arm-linux-gcc -o
helloCGI helloCGI.c
在boa-0.94.13下便生成了一个可执行文件：helloCGI
将helloCGI 拷贝至根文件系统:nfs/var/www/cgi-bin/下
[root@localhost boa-0.94.13]# cp helloCGI /nfs/var/www/cgi-bin/
3.测试
浏览器输入:http://192.168.0.2/cgi-bin/helloCGI
网页出现 Hello,world. 调试成功！
如果打开CGI出现502错误，尝试重新编译BOA，在cgi.c文件的int complete_env
(request * req)函数最后（返回之前）添加 my_add_cgi_env(req,
"LD_LIBRARY_PATH", "/lib");
另外，如果添加了这一句话还是有问题，请检查一下你的CGI程序写得是否规范。
移植中出现的错误及解决方法
问题及解决：
Q：使用 make编译出现错误
util.c:100:1: pasting “t” and “->” does not give a valid
preprocessing token
make: *** [util.o] Error 1
A：修改 src/compat.h，找到
#define TIMEZONE_OFFSET(foo) foo##->tm_gmtoff
修改成
#define TIMEZONE_OFFSET(foo) (foo)->tm_gmtoff
Q：执行 boa 出现 “gethostbyname::No such file or directory”
A：需要将 boa.conf 里的 ServerName 开头注释去掉
Q：无法启动 Boa，error log 显示 “boa.c:266.icky Linux kernel bug!:No
such file” A：修改 src/boa.c，将下面判断语句注释：
/*if (setuid(0) != -1) {
DIE(”icky Linux kernel bug!”);
}*/
重新编译
Q：无法启动Boa，error log 显示 “boa.c:211 - getpwuid….略”
A：修改 src/boa.c，将下面判断语句注释：
/*if (passwdbuf == NULL) {
DIE(”getpwuid”);
}
if (initgroups(passwdbuf->pw_name, passwdbuf->pw_gid) == -1) {
DIE(”initgroups”);
}*/
重新编译。
1.必须要在板子的/etc下建一个boa目录（错误代码忘了）
2.”can't open boa.conf for reading“
解决：不仅要在你自己放置boa的目录下放入boa.conf配置文件，而且要在板子
的/etc/boa下也要放入boa.conf文件，这样系统在运行boa的时候才可以读取到
boa.conf文件。
3.“unable to dup2 the error log bad file descriptor”
解决：在boa源码里，即src文件夹下把log.c中的第73行的if语句注释掉。
4."unable to dup2 the error log:Bad file descriptor"
解决：在boa.conf里，把“#AccessLog /var/log/boa/access_log”注释掉（即去
掉＃号）。
5.“[01/Jan/2031:00:12:25 +0000] boa.c:226 - icky Linux kernel
bug!: No such file or directory”
解决：在boa源码里，即src文件夹下把boa.c中的第226行的if语句注释掉。
6."gethostbyname:: Resource temporarily unavailable"
解决：把“#ServerName www.your.org.here”的“＃”号去掉。
7."./boa: 1: syntax error: "(" unexpected"
解决：没有修改Makefile，是用gcc编译的，应该改成是arm-linux-gcc编译。
8.如果页面上是：“502 Bad Gateway The CGI was not CGI/1.1
compliant.“
解决：给你要执行的cgi可执行程序赋个权限。chmod 777 filename
9.在<form action="cgi-bin/test2.cgi" method="get">中，cgi可执行程
序的路径就直接写“cgi-bin/test2.cgi”就可以了，不要写板子上的绝对路径，这
样就重复了，因为cgi执行时会自动去boa.conf的指定的路径里找。
10.出现警告：“control reaches end of non-void function”，是因为
某个函数没有return，而函数定义时是非void型的。所以需要有个返回值。比如int
cgiMain()这个函数就一定要有个返回值的，否则会报这个错误。
12.运行网页时老出现错误：“mkstemp:No such file or diectory”
解决：不能用post，只能用get。因为post方式需要新建一个临时文件，这就需要用
到mkstemp函数。这个函数是在系统中以唯一的文件名创建一个文件并打开，且只有
当前用户才能访问这个临时文件。故权限不够，或其他什么问题都会报这个错误。
那么就用get吧！这里具体原因细节笔者暂时也不是很清楚...
13.直接写的含有system()函数的c程序用arm-linux-gcc编译到板子上的可
以执行，而如果写在cgi中的就不一定能执行了。因为牵涉到一个cgi的权限的问题
。即使给你的cgi-bin文件夹下的所有cgi可执行文件都赋了权限，也不一定能执行
。
解决办法就是看看你的boa.conf中的权限设置的如何。这里正确的应该是把
“User nobody Group nogroup”改为“User root Group 0”，否则不能正确执行
！你会发现你的cgi可执行程序的其他代码都执行了，却只有这个system()函数没有
执行！
*博客内容为网友个人发布，仅代表博主个人观点，如有侵权请联系工作人员删除。
发布文章
