Development

Today I have submitted a PR which I have marked “critical”. bsd.port.mk does not do the right thing on RELENG_6 after the rcorder change, which will cause all ports installed rc.d scripts stop to function at system startup.

The PR can be accessed here: http://www.freebsd.org/cgi/query-pr.cgi?pr=93536

UPDATE(20060219): It seems that the problem is not related to this. I am still investigating what was happening.

UPDATE(20060220): Doug Barton has kindly provided information about the issue. It was because some nojail and mountcritlocal conflict. The issue can only appear when you are using jail(8).

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关于如何扩展复杂且难懂的C代码的一点经验谈

2006-02-18 07:26 | Development

有时，我们会希望扩展一些现有的C代码。这些代码可能经历了相当久的运行考验——它们至少目前工作起来没有问题——然而，它们可能存在各种各样的问题，比如：

缺少注释。
过分使用的goto语句。
变量名不规范。
逻辑复杂难懂。
过分使用表达式赋值(if (foo = bar()) {})
直接返回函数返回值(这是合法的，但会给增加功能带来困难)

要扩展这类代码是一件有挑战的事情。

阅读全文…( 本文约 705 字，阅读大致需要 2 分钟 )

FreeBSD的uuid处理小问题

2006-02-05 07:25 | Development

似乎在处理>和<时，和 DCE 不太一样，改天写个test case看看。

Archived: trackbacks

生成UUID from 2006 Penguin, smashing time! on February 4, 2006 11:36 PM

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#include <stdio.h>
#include <uuid.h>
main() {
  uuid_t *uuid;
  char *s;
  uuid = (uuid_t*)malloc(sizeof(uuid_t));
  uuidgen(uuid,1);
  uuid_to_string(uuid,&s,NULL);
  printf("%s\\n",s);
}

一个很简单的生成UUID的例子。… Read More

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FreeBSD 5-STABLE and 6-STABLE frozen for release

2006-02-03 05:44 | Development

Today we have frozen the RELENG_5 and RELENG_6 branches, for the upcoming 5.5-RELEASE and 6.1-RELEASE. Unfortunately, the www.freebsd.org is not accessable from the mainland China right now.

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