how to use fgets noob

i wanted to know how to use fgets(); to asked the user for a string. instead of using scanf to scan for a string instead becasue scanf can cause buffer overflow.
can someone give me an example



for examaple

Code:

---


#include <stdio.h>


main()
{
     
      char name[25];
      printf("name is");
      scanf("%s",&name);    // this is  not good because it can cause overflow if my  string is larger thatn 25. so how do you use fgets 
     
     
     
}

---

fgets(name,25,stdin);

what the hell is stdn

It's kinda like stdin, except it doesn't have an i.


Quzah.

i mean what is stdin. can someone one tell me please. i want to get better at programing

You should discover the joys of a search engine. In the couple of minutes between posts, you didn't think to type 'stdin' in a search engine? Or even into the search field of this forum?


Quzah.

that is what a forum is for ask question

A forum is not a replacement for a search engine and you using what I assume is contained in your cranium...a brain?

Quote:

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Originally Posted by mouse666666

that is what a forum is for ask question

---

That's true but you could at least imagine that this is a question that has been asked hundreds of thousands of times, and you COULD do a search for stdin.

Let me google that for you

He's probably got it in a C book some place, and just didn't bother looking it up.


Quzah.

FTR,

you can still overflow the stdin buffer with fgets()... won't be a spectacular crash, but you'll likely lose input data and make your program all wonky.

likewise, you can make scanf() protect the input variable from having an overflow.

just sayin'

Quote:

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Originally Posted by jephthah

you can still overflow the stdin buffer with fgets()... won't be a spectacular crash, but you'll likely lose input data and make your program all wonky.

---

You have no idea what you're talking about, or at least how to correctly word what it is you think you're talking about.


Quzah.

its late here, im not expressing clearly:

fgets, if you dont size your char buffer properly , will leave uncollected input in the input stream. i shouldnt have said overflow. but the uncollected input will (unless the routine is sufficiently error-checked) will most likely cause the operation of the program to fail.

scanf if formatted correctly, can protect the char buffer from being overflowed.

all i'm saying is that scanf is not Teh Evil, and fgets is not Teh Messiah. though for new users, its probably best if they stay away from scanf