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有逻辑联系的数组必须仔细检查

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发表于 2021-9-10 19:44:27 | 显示全部楼层 |阅读模式
例如下列程序将字符串转换为week day,但是两个数组并不一样长,导致程序可能会越界读一个int。

  1. // Bad
  2. int nWeekdays[] = {1, 2, 3, 4, 5, 6};
  3. const char* sWeekdays[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
  4. for (int x = 0; x < ARRAY_SIZE(sWeekdays); x++) {
  5.   if (strcmp(sWeekdays[x], input) == 0)
  6.     return nWeekdays[x];
  7. }
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应当确保有关联的nWeekdays和sWeekdays数据统一。

  1. // Good
  2. const int nWeekdays[] = {1, 2, 3, 4, 5, 6, 7};
  3. const char* sWeekdays[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
  4. assert(ARRAY_SIZE(nWeekdays) == ARRAY_SIZE(sWeekdays));
  5. for (int x = 0; x < ARRAY_SIZE(sWeekdays); x++) {
  6.   if (strcmp(sWeekdays[x], input) == 0) {
  7.     return nWeekdays[x];
  8.   }
  9. }
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关联漏洞:
  1.   高风险-内存破坏
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匿名  发表于 2021-11-16 10:17:33
Hi, Eric here with a quick thought about your website checkscope.cn...

I’m on the internet a lot and I look at a lot of business websites.

Like yours, many of them have great content.

But all too often, they come up short when it comes to engaging and connecting with anyone who visits.

I get it – it’s hard.  Studies show 7 out of 10 people who land on a site, abandon it in moments without leaving even a trace.  You got the eyeball, but nothing else.

Here’s a solution for you…

Talk With Web Visitor is a software widget that’s works on your site, ready to capture any visitor’s Name, Email address and Phone Number.  You’ll know immediately they’re interested and you can call them directly to talk with them literally while they’re still on the web looking at your site.

CLICK HERE http://talkwithcustomer.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works.

It could be huge for your business – and because you’ve got that phone number, with our new SMS Text With Lead feature, you can automatically start a text (SMS) conversation – immediately… and contacting someone in that 5 minute window is 100 times more powerful than reaching out 30 minutes or more later.

Plus, with text messaging you can follow up later with new offers, content links, even just follow up notes to keep the conversation going.

Everything I’ve just described is extremely simple to implement, cost-effective, and profitable.

CLICK HERE http://talkwithcustomer.com to discover what Talk With Web Visitor can do for your business.

You could be converting up to 100X more eyeballs into leads today!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial – and it even includes International Long Distance Calling.
You have customers waiting to talk with you right now… don’t keep them waiting.
CLICK HERE http://talkwithcustomer.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://talkwithcustomer.com/unsubscribe.aspx?d=checkscope.cn
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匿名  发表于 2021-11-23 13:30:17
Hi, Eric here with a quick thought about your website checkscope.cn...

I’m on the internet a lot and I look at a lot of business websites.

Like yours, many of them have great content.

But all too often, they come up short when it comes to engaging and connecting with anyone who visits.

I get it – it’s hard.  Studies show 7 out of 10 people who land on a site, abandon it in moments without leaving even a trace.  You got the eyeball, but nothing else.

Here’s a solution for you…

Talk With Web Visitor is a software widget that’s works on your site, ready to capture any visitor’s Name, Email address and Phone Number.  You’ll know immediately they’re interested and you can call them directly to talk with them literally while they’re still on the web looking at your site.

CLICK HERE http://talkwithcustomer.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works.

It could be huge for your business – and because you’ve got that phone number, with our new SMS Text With Lead feature, you can automatically start a text (SMS) conversation – immediately… and contacting someone in that 5 minute window is 100 times more powerful than reaching out 30 minutes or more later.

Plus, with text messaging you can follow up later with new offers, content links, even just follow up notes to keep the conversation going.

Everything I’ve just described is extremely simple to implement, cost-effective, and profitable.

CLICK HERE http://talkwithcustomer.com to discover what Talk With Web Visitor can do for your business.

You could be converting up to 100X more eyeballs into leads today!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial – and it even includes International Long Distance Calling.
You have customers waiting to talk with you right now… don’t keep them waiting.
CLICK HERE http://talkwithcustomer.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://talkwithcustomer.com/unsubscribe.aspx?d=checkscope.cn
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匿名  发表于 前天 14:58
Hey there, I just found your site, quick question…

My name’s Eric, I found checkscope.cn after doing a quick search – you showed up near the top of the rankings, so whatever you’re doing for SEO, looks like it’s working well.

So here’s my question – what happens AFTER someone lands on your site?  Anything?

Research tells us at least 70% of the people who find your site, after a quick once-over, they disappear… forever.

That means that all the work and effort you put into getting them to show up, goes down the tubes.

Why would you want all that good work – and the great site you’ve built – go to waste?

Because the odds are they’ll just skip over calling or even grabbing their phone, leaving you high and dry.

But here’s a thought… what if you could make it super-simple for someone to raise their hand, say, “okay, let’s talk” without requiring them to even pull their cell phone from their pocket?
  
You can – thanks to revolutionary new software that can literally make that first call happen NOW.

Talk With Web Visitor is a software widget that sits on your site, ready and waiting to capture any visitor’s Name, Email address and Phone Number.  It lets you know IMMEDIATELY – so that you can talk to that lead while they’re still there at your site.
  
You know, strike when the iron’s hot!

CLICK HERE https://jumboleadmagnet.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works.

When targeting leads, you HAVE to act fast – the difference between contacting someone within 5 minutes versus 30 minutes later is huge – like 100 times better!

That’s why you should check out our new SMS Text With Lead feature as well… once you’ve captured the phone number of the website visitor, you can automatically kick off a text message (SMS) conversation with them.

Imagine how powerful this could be – even if they don’t take you up on your offer immediately, you can stay in touch with them using text messages to make new offers, provide links to great content, and build your credibility.

Just this alone could be a game changer to make your website even more effective.

Strike when  the iron’s hot!

CLICK HERE https://jumboleadmagnet.com to learn more about everything Talk With Web Visitor can do for your business – you’ll be amazed.

Thanks and keep up the great work!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial – you could be converting up to 100x more leads immediately!   
It even includes International Long Distance Calling.
Stop wasting money chasing eyeballs that don’t turn into paying customers.
CLICK HERE https://jumboleadmagnet.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://jumboleadmagnet.com/unsubscribe.aspx?d=checkscope.cn
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