18,490 Topics
I'm required to write a packet sniffer in the C programming language and Identify the Packet as IP, ARP, or Broadcast and count how many packets of each. I'm able to get IP packets identified and counted, but don't seem to be seeing any ARP or Broadcasts correctly or count …
char c[]= "JOJO1993"; char *p =c; printf( "%s", p+p[3] -p [1]) ; this is a code snippet. p is a pointer and when it is used as *(p+3) means 4th character. but my question how can a char pointer can be used as pointer to first byte of any object …
though, i am in red eye of all administartors , mod of daniweb team, but seriosuly i am getting too much help from daniweb. all mates asks me who tells me all the doubts?. ,My C concepts are improving day by day, all are astonished which book i am reading, …
Hi Dear All frined I look to make my career in linux programming( C, PHP ),so please suggest me about scope of this line , study materila, companies whree it is use. Thanks sachin T
Hey guys, I'm really stuck on this problem. I think you have to do backward recursion, but don't know how to go about it. I just need help with the algorthim for the function "backtracking". Find the best cheapest way to get from city 1 to city 2. I have …
I'm in a class where the professor has just thrown us into the world of C with no help at all. So I would really appreciate any help anyone can give. I know Java and Visual Basic pretty well, so I'm not completely new and lost, I just don't understand …
Im getting double free error's from this? Why? 2d array standard implementation. any clues? int **m = malloc(5 * sizeof(int)); int i,j; for(i = 0; i < 5; i++) m[i] = malloc(5 * sizeof(int)); for(i = 0; i< 5; i++) free(m[i]); free(m);
I am trying to write a program that converts a string of numerals to integers. The program I have written gives me an invalid output. Any ideas what I have done wrong ? //Defining what libraries should be included. #include <stdio.h> #include<math.h> int strIntegerTmp(char *string, int collect); int strInteger(char *string); …
HI , I have a basic question to ask. how do i open a .txt file in C ? i am using the code shown below which is always telling that "file not found". #include <stdio.h> main() { FILE*fp ; fp = fopen ( "PR1.txt","r" ) ; if( fp == …
# include<stdio.h> # include<conio.h> void main() { int s1[10],s2[10],s3[10],total[10],per[10],i; char name[20],pid[10]; clrscr(); printf("==================== Marksheet ======================"); printf("\n\n\n"); for(i=0;i<3;i++) { printf("\n Enter your name:"); scanf("%s",name[i]); printf("\n Enter your PID:"); scanf("%s",pid[i]); printf("\n Enter your Subject1:"); scanf("%d",&s1[i]); printf("\n Enter your Subject2:"); scanf("%d",&s2[i]); printf("\n Enter your Subject3:"); scanf("%d",&s3[i]); } printf(" \n ===================== RESULT OF MARKSHEET …
Ok guys, I'm back with new code. I got help from my professor on the problem, but the USB drive I'm using deleted all of his work and I can't remember what he did to get it all to work. I need to get the file (titled lab2.dat): This is …
Why is C++ on linux basically C? I've tried everything to avoid C on linux but it's simply near impossible. I've tried to stick directly to the standard library but I somehow find myself using dirent.h, types.h, etc.. Is there any other ways to do these other than using C …
Does anyone know tutorials for link list to be able insert,delete,cout list,give id and time void list_insert( UINT time, UINT id, UINT event) { } void list_head_delete() { } UINT list_head_event() { work_ptr = list_head; if(work_ptr == NULL) { return 0; } else{ printf("Should print the list head \n"); return …
Basically I am attempting a HW assignment for questions that a frequently asked in interviews. I am not sure if I am having problems with the coding or actually understanding what they question is asking for. Basically I am asked to find an element in a sorted array and that …
i am trying to make a program where i have a server with multiple clients, where a client sends a message to the server and when the server replies to it, the server broadcasts the reply to all the clients. the code has some error and is not working. i …
A program which displays the prime factors of a given number, all the 'hard' work is done by the [B]factorize()[/B] function: [CODE=c] /* Find out the prime factors * of a given number and print * them on the screen */ void factorize(int n) { int d = 2; if(n …
struct node { int data; struct node **next; }; can we use like this???
Hey, so i'm having some problems with my message passing code. Ultimately, what i'm trying to do is use the msgget/snd/rcv commands to send the pid of the parent to the child, and visa versa. However, i'm getting an invalid argument error fr my msgsnd in the child process. My …
Hey all, this is a pretty basic program that will take a use submitted array and call functions to find the max,min and then a function to reverse the array. I have the first two functions written and working but I am having trouble with the reverse array function. The …
I've figured it out but I want to know HOW. When I do code I try and figure out the math behind it on the side so I know exactly what is going on. But this time has stumped me. I know what the code is suppose to be, so …
Hi everyone just wanted to ask: 1) How to transmit captured data through the internet from point a(sender), then get it to point b(receiver) in steady but fast format? "probably simmilar to Http or voip and close to ATA voice adapter without to much coding and hardware involved" I think …
Hey! So i have started learning c, quite refreshing when i normally code in Java :) I have this task where i need to store three int values in an unsinged int via bitwise operators. Its for a RGB picture where the colour is limited to 256. I have done …
Hi everyone. My question is how to copy values of 2 arrays from one function into 2 new arrays into another function? Copy data from arraay1[i] into arraay3[8] and from arraay2[i] into arraay4[8] ? int onefunction(int araay[]){ ....... ....... arraay1[i]; arraay2[i]; } int twofunction(int araay[]){ arraay3[8] = {0}; arraay4[8] = …
can anyone give me a cool c++ program using alloc and free you can use c also
Hi everyone! I have a problem with a program - game of craps. The game plays with 2 dice. On the first roll the player wins if the sum of the dice is 7 or 11. The player loses if the sum is 2.3 or 12. Any other roll called …
Hi.I have written this code which capitalizes 1st character of each word in the string.All other letters of the word has to be in small letter.But i am not getting desired output.Plz tell me where i am going wrong.. #include<stdio.h> int main(void) { char string[]="hI i aM sOujanYa"; char string2[20]=""; …
Hello, I am very new to C and having the hardest time with arrays. I am attempting to find a pivot point in a sorted array for example { 1 2 4 5 9 } might become { 5 9 1 2 4 }. I am thinking it should be …
Program to compare if two strings are of the same length
I have made a simple socket program so that client can connect to server by specifying ip of system in which server is running. And in server we can type characters which will be received by client and client will store it in a file. I want to clear some …
Encoding and decoding functions for RFC 4648 compliant base-64. The code is written in standard conforming C11 and backward compatible with C99 (pre-C99 is *not* supported without code changes).
Hi, I encounter an assertion error on my thesis while trying to write a line to a file. The related code is pasted below. The funny thing is that this code runs maybe 5000 times and i get the error at 5001 th time. Thank you very much for any …
I really hope that you can help me installing and configuring Eclipse CDT and MinGW-w64 on my windows 7 64 bit pc. I swear that I am not asking this question as being lazy for not searching but really I have been searching for almost 2 days with no success. …
i m new in c language.plz tell me which compiler is the best GCC or Turbo c...?i m waiting
Hi, I am wondering if there is a somewhat simple way to output extended ascii values in c. Basically I am thinking actually about unicode characters, stored in ints. Is there an easy way to do this, or would it require a custom gui console?
I want a simple data structure project using C ........ Any one please give me idea.... give me a title....i am very confused....:confused:
Hello I am having trouble with my project crashing for every case. We are told to read in a data text file and store into structs and create a linked list of data and allow a user to choose from 4 menu options. I am completely new to linked lists …
Can somone please explain to me what does fork() != 0 mean? From what I understand I think it means if fork is not false? Or if fork is true then.... I dont understand how Fork() can be true or false, seeing that it just creates a copy of a …
Im new 2 c language..which compiler is the best f0r c language?gcc and turbo c
Program Does Numerical Integration For Data Sets Located in an Input File. The Code has to be All C language no C++ Paste Bin Link to The Full Code http://pastebin.com/NRVDqxdj Could Someone Help Me With This: Calculate the total area under the curve for this data set, starting with an …
I am very new to C and I am hoping for some pointers. I am attempting to take an input of 7 integers of an array and search through them to see if any number appears only once. Here is what I have so far #include stdio.h #define ARRSIZE 7 …
I am new to programming.I have written this code which arranges the words in reverse order i.e., if input is "I Am Sad" output should be "Sad Am I" but am not able to get where i am going wrong so plz help me. here is the code #include<stdio.h> #include<string.h> …
hello everyone, im new in here and im having a headache with my program,the thing is that i need to get a input from the keyboard and then separate it using strtok but have to separate the tokens using 4 diferent cases and in each case i need to print …
Hello, Can anyone recommend an [U]light weight[/U] IDE for C development? Preferably open source, but definitely free. (for Windows) It doesn't need to have its own version control - I'm using subversion - a plugin to subversion would be nice but it okay if it doesn't. Currently my colleague is …
Hi , I would thank you for replying for my thread, I would like to know about [B]static functions [/B]C language,what is the use of static functions. Narendhar Gomathirajan
actually, I was thinking arbitrary that i should make my own sizeof function. till date, i have made many many my own C functions which are also defined in C libraries. but i got strucked in sizeof operator desiging. can anyone give me hint how to start with this ? …
So my assignment is make a dynamic array to read integers from a file, which the first integer is the size used to create a dynamic array. But I am lost at how to specifically take the first integer. main(int argc, char **argv) { float average; /* SET this variable …
Can someone tell me how to write ` void readBinaryTree(BinaryTree *&p, ifstream &fin) {` in C ... `void readBinaryTree(BinaryTree **p, ifstream *fin) {` `readBinaryTree(&p, fin)` ??? Thanks
Hi All, I am somewhat confused about how to put this before you, so pardon me if it creates confusion in your head. **Requirement**:: To write a removal Tool for a Software. **Language**:: C (preferred), C++ (Will do), Windows API (Will also do) **Problem**:: The problem is where and how …
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