perception overflow

Source:#include #include #include Char *file[2] = {"Superman.txt", "Batman.txt"};Char email[128];char* Cat_file (char *filename) {FILE *FP;Char *content = (char *) malloc (40);memset (content,0,40);fp = fopen (FileName, "RB");FSCANF (FP, "%40s", content);Fclose (FP);printf ("The content is:%s\n", content);return content;}int main (){int i = 0;char *temp = NULL;char *file_content = NULL;Char buf[140];while (I{temp = File[i];File_content = Cat_file (temp);printf ("What ' s this?\nguess:");scanf ("

Overflow, is there a problem? Why should we use caution? Because sometimes it can cause problems ... With regard to Overflow:auto, many people are greedy for his easy writing, which is used to clear the float directly. But Firefox uses Overflow:auto to generate focus, citing comments from netizens Fireyy I think this is a "usability and affinity" (usability/accessibility) setting for the FF browser, when the Overflow:auto or overflow:scroll elements

-overflow, whose syntax is as follows: Copy Code code as follows: Text-overflow:clip | Ellipsis Clip: does not show ellipsis (...), but rather simple trimming Ellipsis: Displays an ellipsis (...) when an object overflows inside text. Note: This property is IE-specific! However, it is not only ie available. The label, although not well-behaved, is publicly supported, but is contained by the private properties of many brows

Overflow is supported in IE and non ie browsers! But there was a problem when I was doing something yesterday! This is the beginning of the CSS: Copy Code code as follows: #tmd {border:1px solid #9F9F9F;p adding:2px 5px;height:175px;width:140px;overflow-y:scroll;} This is the content: Copy Code code as follows: In IE and Firefox can be, is not in the Oprea;In IE and f

1, Bug Description: When the child elements set relative positioning (relative), the parent element of the overflow (set to Auto or hidden) is invalid, in IE6, 7 see or there will be overflow 2, the problem of IE version: IE6, IE7 3. Example: Give a simple example CSS section: . outer{width:200px;height:200px;Overflow:hidden;}. inner{width:300px;height:300px;position:relative;Background-color: #ffe17e;} HTM

When a disk overflow occurs, MySQL does the following things: It checks every minute to see if there is enough space to write to the current line. If there is enough room, it continues as if something had happened. Every 6 minutes it writes warnings about disk overflows to the log file. To mitigate this problem, you can take the following actions: Continue, you only need to free up enough free disk space to insert all the records. To discard thre

Web Development If you encounter PHP query MySQL return a large amount of data caused by memory overflow, or memory is not enough to use the situation that need to look at the MySQL C API Association, then what is the result of PHP query MySQL return a large amount of data when the memory is not enough to use the situation?The answer is: mysql_query and mysql_unbuffered_query two functions First of all, to analyze a typical example: when the following

Label:This article introduces a nginx server anti-SQL injection/overflow attack/spam and Forbidden user-agents Instance code, there is a need to know the friend can enter the reference. Add the following fields to the configuration file The code is as follows Copy Code server {# # Forbidden SQL injection Block SQL injectionsSet $block _sql_injections 0;if ($query _string ~ "union.*select.* (") {Set $block _sql_in

One, Tomcat memory setup issues A Java.lang.OutOfMemoryError exception occurs when you use a Java program to query large amounts of data from a database or an application server (such as Tomcat, jboss,weblogic) loads a jar package. This is mainly due to insufficient memory on the application server. The exceptions are often as follows (for example, for the Tomcat environment, other Web servers, such as Jboss,weblogic, are the same): 1. Java.lang.OutOfMemoryError:PermGen Space The full name of Pe

I once did a small swing in the beginning of the process, using the Java Se,swing,thread and other Dongdong, the original experience has not done a rigorous performance testing, cloth to the production environment after a period of time to find that the small program will sometimes throw The java.lang.OutofMemoryError exception is the Java memory overflow. There was a lot of information on the Internet, tried some methods, the code has a little bit of

The problem has occurred in the previous period:The table has a column number type rec_recordlength (two time interval length/sec)Some data statistics This field will appear "Calculate the operation Overflow" error, it is a headache, can not find the reasonAnd thenToday again, and then constantly troubleshooting, troubleshooting, found that there is a data caused by,Then this data is removed and reinserted.Then think of the only thing that moved this

Buffer overflow attacks are currently one of the most common attacks by hackers. to cope with the emerging buffer overflow attacks, we have studied how to prevent buffer overflow in Linux, summarizes the security policies for preventing buffer overflow attacks on the Linux platform. these security policies can be appli

Buffer overflow is usually manifested as the most common vulnerability that exists in today's various software. Hackers can use malicious input to change the program execution process, the intrusion into the corresponding process, computer, or whole domain. If a process runs under a highly trusted account, such as an administrator or a local system account, the damage caused by hackers is extremely serious and potentially spreading widely. Some well-k

Exploit Linux Kernel Slub OverflowBy wzt I. Preface In recent years, the research on kernel exploit has been quite popular. Common kernel Elevation of Privilege vulnerabilities can be divided into several categories:Null Pointer Reference, Kernel stack overflow, Kernel slab overflow, arbitrary kernel address writability, and so on. Comparison of Null Pointer Reference VulnerabilitiesIt is easy to exploit. T

When the Text-overflow is set to ellipsis text overflow content can be displayed as an ellipsis, and set as clip can be the text overflow part of the cut off, but in the table after using Text-overflow still can not hide beyond the text, the specific solution Xiang see this article.In W3cschool CSS3 has a text-related

Why is 03, because I just realized from today the output is also a very important part of the learning process, so from today, I will learn the new knowledge every day to record, warm and know new.Reiterate, each article is my study of the day record, because I am small white, the level is limited, inevitably appear flaws, follow-up will be corrected in time. Welcome you to point out the mistake!!!1,Let's take a look at the 5 basic properties of overflow