Linux/Unix下多线程代理验证工具Phc1.1正式版放出

小锁 · 发表于 2005-10-18 23:22:23

红色的代码用意何在？
要是我就这样写

void
xfree (void **p)
{
assert(p != NULL);
if(*p != NULL){
free(*p);
*p = NULL;
}
};

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phc · 发表于 2005-10-18 23:30:02

Post by dorice
呵呵，我自己写了一个类似于windows下的花刺代理验证的东西自己用，已经足够了，采用kylix开发，有windows和linux两个版本

你的工具是不是支持复杂匹配的?下面窗口的"{"是?

呵呵,kylix没学过,希望将来有机会学,:-).

dorice · 发表于 2005-10-18 23:36:16

就是支持正则表达式而已
我是用正则表达式在网页上找到代理的地址和端口的

phc · 发表于 2005-10-18 23:38:47

Post by 小锁
红色的代码用意何在？
要是我就这样写

void

xfree (void **p)

{

assert(p != NULL);

if(*p != NULL){

free(*p);

*p = NULL;

}

};

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assert(*p != NULL)?
避免free(0)的发生. p!=NULL不能保证*p!=NULL.

phc · 发表于 2005-10-18 23:43:22

Post by dorice
就是支持正则表达式而已
我是用正则表达式在网页上找到代理的地址和端口的

我写了一个抓取bbs上的代理的简单脚本,不同的网站要用不同的脚本了,
还没有想过把抓取规则写入代码,:-).

小锁 · 发表于 2005-10-18 23:49:22

Post by phc
assert(*p != NULL)?
避免free(0)的发生. p!=NULL不能保证*p!=NULL.

free(null)不会发生任何事情，但是p == NULL时，肯定发生段错误，这个输入函数用错，所以用
assert来断言，并且我对*p == NULL的情况有所考虑。
你没看到你if（）后面的";"?

phc · 发表于 2005-10-19 00:04:50

Post by 小锁
free(null)不会发生任何事情，但是p == NULL时，肯定发生段错误，这个输入函数用错，所以用
assert来断言，并且我对*p == NULL的情况有所考虑。
你没看到你if（）后面的";"?

非常感谢,那个";"错的太恶了!我这里的字体设置的看不清楚,
同意,作为一个完整的xfree函数,p = NULL的特殊情况也需要考虑,

回看了一下源程序,原来想实现的也是这个效果,但是多处这种错误...
当时一定在daydream,呵呵.
free(NULL)在标准的free实现下的确不会发生事情,写在这里只是为了buggy的free实现,或许多虑了,:-).
Btw,期待有更多的错误发现!

yankaiqian · 发表于 2005-10-19 13:08:33

刚才下载了，可是 ./configure时出了个问题，我对这些不怎么懂，将过程贴出来吧：

# ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets $(MAKE)... yes
checking for working aclocal-1.4... missing
checking for working autoconf... missing
checking for working automake-1.4... missing
checking for working autoheader... missing
checking for working makeinfo... missing
checking for gcc... gcc
checking for C compiler default output file name... configure: error: C compiler cannot create executables
See `config.log' for more details.

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下面是config.log文件内容：

This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by src/phc.c configure 1.1, which was
generated by GNU Autoconf 2.59. Invocation command line was
$ ./configure
## --------- ##
## Platform. ##
## --------- ##
hostname = YQ.SCU
uname -m = i686
uname -r = 2.6.8-2-k7
uname -s = Linux
uname -v = #1 Thu May 19 18:03:29 JST 2005
/usr/bin/uname -p = unknown
/bin/uname -X = unknown
/bin/arch = i686
/usr/bin/arch -k = unknown
/usr/convex/getsysinfo = unknown
hostinfo = unknown
/bin/machine = unknown
/usr/bin/oslevel = unknown
/bin/universe = unknown
PATH: /usr/local/sbin
PATH: /usr/local/bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /sbin
PATH: /bin
PATH: /usr/bin/X11
## ----------- ##
## Core tests. ##
## ----------- ##
configure:1347: checking for a BSD-compatible install
configure:1402: result: /usr/bin/install -c
configure:1413: checking whether build environment is sane
configure:1456: result: yes
configure:1471: checking whether make sets $(MAKE)
configure:1491: result: yes
configure:1523: checking for working aclocal-1.4
configure:1534: result: missing
configure:1538: checking for working autoconf
configure:1549: result: missing
configure:1553: checking for working automake-1.4
configure:1564: result: missing
configure:1568: checking for working autoheader
configure:1579: result: missing
configure:1583: checking for working makeinfo
configure:1594: result: missing
configure:1647: checking for gcc
configure:1663: found /usr/bin/gcc
configure:1673: result: gcc
configure:1917: checking for C compiler version
configure:1920: gcc --version </dev/null >&5
gcc (GCC) 4.0.2 (Debian 4.0.2-2)
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
configure:1923: $? = 0
configure:1925: gcc -v </dev/null >&5
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.0 --enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.0.2 (Debian 4.0.2-2)
configure:1928: $? = 0
configure:1930: gcc -V </dev/null >&5
gcc: '-V' option must have argument
configure:1933: $? = 1
configure:1956: checking for C compiler default output file name
configure:1959: gcc conftest.c >&5
/usr/bin/ld: crt1.o: No such file: No such file or directory
collect2: ld returned 1 exit status
configure:1962: $? = 1
configure: failed program was:
| /* confdefs.h. */
|
| #define PACKAGE_NAME "src/phc.c"
| #define PACKAGE_TARNAME "src-phc-c"
| #define PACKAGE_VERSION "1.1"
| #define PACKAGE_STRING "src/phc.c 1.1"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE "phc"
| #define VERSION "1.1"
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:2001: error: C compiler cannot create executables
See `config.log' for more details.
## ---------------- ##
## Cache variables. ##
## ---------------- ##
ac_cv_env_CC_set=
ac_cv_env_CC_value=
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_path_install='/usr/bin/install -c'
ac_cv_prog_ac_ct_CC=gcc
ac_cv_prog_make_make_set=yes
## ----------------- ##
## Output variables. ##
## ----------------- ##
ACLOCAL='/mnt/data/ftp/software/phc-1.1/missing aclocal-1.4'
AUTOCONF='/mnt/data/ftp/software/phc-1.1/missing autoconf'
AUTOHEADER='/mnt/data/ftp/software/phc-1.1/missing autoheader'
AUTOMAKE='/mnt/data/ftp/software/phc-1.1/missing automake-1.4'
CC='gcc'
CFLAGS=''
CPP=''
CPPFLAGS=''
DEFS=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
EXEEXT=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
LDFLAGS=''
LIBOBJS=''
LIBS=''
LTLIBOBJS=''
MAKEINFO='/mnt/data/ftp/software/phc-1.1/missing makeinfo'
OBJEXT=''
PACKAGE='phc'
PACKAGE_BUGREPORT=''
PACKAGE_NAME='src/phc.c'
PACKAGE_STRING='src/phc.c 1.1'
PACKAGE_TARNAME='src-phc-c'
PACKAGE_VERSION='1.1'
PATH_SEPARATOR=':'
PTHREAD_CC=''
PTHREAD_CFLAGS=''
PTHREAD_LIBS=''
SET_MAKE=''
SHELL='/bin/sh'
VERSION='1.1'
ac_ct_CC='gcc'
acx_pthread_config=''
bindir='${exec_prefix}/bin'
build=''
build_alias=''
build_cpu=''
build_os=''
build_vendor=''
datadir='${prefix}/share'
exec_prefix='NONE'
host=''
host_alias=''
host_cpu=''
host_os=''
host_vendor=''
includedir='${prefix}/include'
infodir='${prefix}/info'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localstatedir='${prefix}/var'
mandir='${prefix}/man'
oldincludedir='/usr/include'
prefix='NONE'
program_transform_name='s,x,x,'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='${prefix}/etc'
target_alias=''
## ----------- ##
## confdefs.h. ##
## ----------- ##
#define PACKAGE "phc"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_NAME "src/phc.c"
#define PACKAGE_STRING "src/phc.c 1.1"
#define PACKAGE_TARNAME "src-phc-c"
#define PACKAGE_VERSION "1.1"
#define VERSION "1.1"
configure: exit 77

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sunmoon1997 · 发表于 2005-10-19 13:36:26

....

sunmoon1997 · 发表于 2005-10-19 13:39:32

如果是我会这样写。。
#define  xfree (p) do { \
   free (p); \
   p = NULL; \
} while (0)

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