Introduction
Introduction Statistics Contact Development Disclaimer Help
tedunangst_flak.rss.xml - sfeed_tests - sfeed tests and RSS and Atom files
git clone git://git.codemadness.org/sfeed_tests
Log
Files
Refs
README
LICENSE
---
tedunangst_flak.rss.xml (28011B)
---
1 <?xml version="1.0" encoding="UTF-8"?>
2 <rss version="2.0">
3 <channel>
4 <title>flak</title>
5 <link>https://flak.tedunangst.com/</link>
6 <description>flak rss</description>
7 <managingEditor>[email protected]</managingEditor>
8 <image>
9 <url>https://flak.tedunangst.com/icon.png</url>
10 <title>flak rss</title>
11 <link>https://flak.tedunangst.com/</link>
12 </image>
13 <item>
14 <title>quick thoughts on bouncy castle bcrypt broken compare</titl…
15 <description><![CDATA[A few thoughts on the BCBCBC vulnerability. …
16 $2b$08$TMwmj0nJfvO6eXGRTNoeaOGbivW1wvSAklXatjMo7tRwoo5FCxCTu
17 $2b$08$p31golX/c.Lz3mh0drcoU.O5Z/6NwzfWR6v7W5RbXKZnOGveumEja</code></pre…
18 $2b$08$XXXXXX.XXXXXXXX9X3XXXXXXXXX2XX0XX1/3XXXXXXX.X5XX9XX9X
19 $2b$08$XXXXXX.XXXXXXXX9X3XXXXXXXXXXXXXXX1/XXXXXXXXXX5XXXXXXX</code></pre…
20 $2b$08$XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX./0123456789</code></pre…
21 <category>programming</category>
22 <category>security</category>
23 <link>https://flak.tedunangst.com/post/quick-thoughts-on-bouncy-ca…
24 <pubDate>Tue, 22 Dec 2020 17:53:56 UTC</pubDate>
25 <guid isPermaLink="true">https://flak.tedunangst.com/post/quick-th…
26 </item>
27 <item>
28 <title>small views of large files</title>
29 <description><![CDATA[Sometimes you have a large file when you wan…
30 <span class=tp>static</span> off_t viewstart<span class=op>,</span> view…
31
32 <span class=tp>static</span> <span class=tp>void</span> init<span class=…
33 <span class=tp>static</span> <span class=tp>void</span> init<span class=…
34 <span class=op>{</span>
35 realopen <span class=op>=</span> dlsym<span class=op>(</span>RTL…
36 viewfile <span class=op>=</span> getenv<span class=op>(</span><s…
37 viewstart <span class=op>=</span> strtonum<span class=op>(</span…
38 viewend <span class=op>=</span> strtonum<span class=op>(</span>g…
39 <span class=op>}</span></code></pre><p>It's cleaner IMO to use a <i>cons…
40
41 <span class=tp>int</span>
42 open<span class=op>(</span><span class=tp>const</span> <span class=tp>ch…
43 <span class=op>{</span>
44 <span class=tp>int</span> fd <span class=op>=</span> realopen<sp…
45 <span class=kw>if</span> <span class=op>(</span>strcmp<span clas…
46 viewfd <span class=op>=</span> fd;
47 lseek<span class=op>(</span>viewfd<span class=op>,</span…
48 <span class=op>}</span>
49 <span class=kw>return</span> fd;
50 <span class=op>}</span></code></pre><p>Var args are messy.<br><h4>fopen<…
51 fopen<span class=op>(</span><span class=tp>const</span> <span class=tp>c…
52 <span class=op>{</span>
53 <span class=kw>if</span> <span class=op>(</span>strcmp<span clas…
54 <span class=tp>int</span> fd <span class=op>=</span> ope…
55 <span class=kw>return</span> fdopen<span class=op>(</spa…
56 <span class=op>}</span>
57 <span class=kw>return</span> realfopen<span class=op>(</span>pat…
58 <span class=op>}</span></code></pre><p>The mode handling is rather incom…
59 read<span class=op>(</span><span class=tp>int</span> fd<span class=op>,<…
60 <span class=op>{</span>
61 <span class=kw>if</span> <span class=op>(</span>fd <span class=o…
62 off_t pos <span class=op>=</span> lseek<span class=op>(<…
63 <span class=kw>if</span> <span class=op>(</span>n <span …
64 n <span class=op>=</span> viewend <span class=op…
65 <span class=op>}</span>
66 <span class=kw>return</span> realread<span class=op>(</span>fd<s…
67 <span class=op>}</span></code></pre><p>At some point we should probably …
68 #include &lt;dlfcn.h&gt;
69 LD_PRELOAD=./libfv.so FDVIEW_NAME=fdview.c FDVIEW_START=19 head -1 fdvie…
70 #include &lt;stdio.h&gt;</code></pre><p>Yes. And with a simple test prog…
71 fd: 3
72 #include &lt;stdio.h&gt;
73 #include &lt;unistd.h&gt;</code></pre><p>There's more to the file, but w…
74 <category>c</category>
75 <category>programming</category>
76 <link>https://flak.tedunangst.com/post/small-views-of-large-files<…
77 <pubDate>Tue, 22 Sep 2020 20:00:47 UTC</pubDate>
78 <guid isPermaLink="true">https://flak.tedunangst.com/post/small-vi…
79 </item>
80 <item>
81 <title>comparative unsafety</title>
82 <description><![CDATA[I wrote some <b>rust</b> code. I used <i>uns…
83 <span class=kw>extern</span> <span class=st>&#34;C&#34;</span> <span cla…
84 <span class=kw>fn</span> chown<span class=op>(</span>path<span class…
85 <span class=op>}</span>
86
87 <span class=kw>fn</span> gift<span class=op>(</span>filename<span class=…
88 <span class=bi>unsafe</span> <span class=op>{</span>
89 <span class=kw>let</span> path <span class=op>=</span> <span cla…
90 <span class=kw>let</span> none <span class=op>=</span> <span cla…
91 chown<span class=op>(</span>path<span class=op>,</span> userid<s…
92 <span class=op>}</span>
93 <span class=op>}</span></code></pre><p>Why am I using my own ffi version…
94 <span class=kw>let</span> path <span class=op>=</span> <span class=t…
95 <span class=kw>let</span> none <span class=op>=</span> <span class=o…
96 <span class=bi>unsafe</span> <span class=op>{</span>
97 chown<span class=op>(</span>path<span class=op>,</span> userid<s…
98 <span class=op>}</span>
99 <span class=op>}</span></code></pre><p>Surely this will elicit a compile…
100 <span class=kw>let</span> path <span class=op>=</span> <span class=t…
101 <span class=kw>let</span> none <span class=op>=</span> <span class=o…
102 <span class=bi>unsafe</span> <span class=op>{</span>
103 chown<span class=op>(</span>path<span class=op>.</span>as_ptr<sp…
104 <span class=op>}</span>
105 <span class=op>}</span></code></pre><p>What disturbs me about this solut…
106 #include &lt;stdlib.h&gt;
107 int chown(const char *, int, int);
108 */</span>
109 <span class=bi>import</span> <span class=st>&#34;C&#34;</span>
110
111 <span class=kw>func</span> gift<span class=op>(</span>filename <span cla…
112 path <span class=op>:=</span> C<span class=op>.</span>CString<sp…
113 C<span class=op>.</span>free<span class=op>(</span>unsafe<span c…
114 C<span class=op>.</span>chown<span class=op>(</span>path<span cl…
115 <span class=op>}</span></code></pre><p>This contains the same bug, freei…
116 path <span class=op>:=</span> C<span class=op>.</span>CString<sp…
117 <span class=bi>defer</span> C<span class=op>.</span>free<span cl…
118 C<span class=op>.</span>chown<span class=op>(</span>path<span cl…
119 <span class=op>}</span></code></pre><p>The fixed code looks a lot like o…
120 <category>go</category>
121 <category>programming</category>
122 <category>rust</category>
123 <link>https://flak.tedunangst.com/post/comparative-unsafety</link>
124 <pubDate>Mon, 17 Aug 2020 13:53:03 UTC</pubDate>
125 <guid isPermaLink="true">https://flak.tedunangst.com/post/comparat…
126 </item>
127 </channel>
128 </rss>
You are viewing proxied material from codemadness.org. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.