Sponsored Content
Top Forums Programming *** glibc detected *** double free or corruption: 0x40236ff4 *** Post 302256884 by migurus on Monday 10th of November 2008 08:27:28 PM
Old 11-10-2008
you are asking your question in someone else thread, that is not best way to get answers

the code posted has several glaring holes, such as variables used before they are set, the closedir is called twice(?), the buffer sizes are making it prone to overflow. Is this a homework? Are you trying to learn dirent family functions?
 

10 More Discussions You Might Find Interesting

1. Programming

*** glibc detected *** free(): invalid next size (normal): 0x0000000000503e70 ***

hi, I have made a small C program that make use of malloc and free for processing bitmap images. when i try to run the program, I am getting a error something like *** glibc detected *** free(): invalid next size (normal): 0x0000000000503e70 *** I am not sure of which free() is causing this... (1 Reply)
Discussion started by: vbreddy
1 Replies

2. Programming

Pointer to a struct (with pointers) *** glibc detected *** double free

I am using a structure defined as follows struct gene_square { double *x; double *y; };I have class, with a member function which is a pointer of this type: gene_square* m_Genes;I am allocating memory in the constructors like this: m_Genes = new gene_square; for (ii=0;... (1 Reply)
Discussion started by: jatoo
1 Replies

3. Programming

Why does this occur? *** glibc detected *** malloc(): memory corruption: 0x10013ff8 ***

there seems not to be error in this segment. In some computers, it can work well. But in others, it will give a failure. why it ocurrs and how to deal with it? in a function: if( *ver == NULL ) { *ver = (vertex *) malloc(sizeof(vertex)); //this line ... (17 Replies)
Discussion started by: cdbug
17 Replies

4. Programming

solved: glibc detection corruption using a fork in popen

Hi, I am having a hell of a time getting this to work. So basically, I have opened a popen to run a program that is going to prompt an action to occur half way through, when it gets to this I need to create a separate process and do some stuff, then return to the original process. This works... (0 Replies)
Discussion started by: imrank27
0 Replies

5. Programming

*** glibc detected *** ./a.out: malloc(): memory corruption (fast):

*** glibc detected *** ./a.out: malloc(): memory corruption (fast): Posted A minute ago M trying to make multiway tree and dont know what happend when this part of code get executed: 01void ins(NODE *ptr) 02{ 03 //working 04 if(ptr!=NULL) 05 { 06 SNODE *var=NULL; 07 var=(SNODE... (3 Replies)
Discussion started by: exgenome
3 Replies

6. Programming

*** glibc detected *** : malloc(): memory corruption (fast)

Hi Friends, while executing the below code, am getting *** glibc detected *** ./ok: malloc(): memory corruption (fast) error, please suggest how to solve this issue. #include <stdio.h> #include <string.h> #include <sqlca.h> #include <alloca.h> /* Define constants for VARCHAR... (2 Replies)
Discussion started by: mpjobsrch
2 Replies

7. Programming

FORTRAN: double free or corruption

Hello. I'm looking for a quite "interesting" bug I'm using fortran 90, compiler gfortran and the main idea is for every time step I build a bin structure for search contact between particles, for this at the begining TYPE :: circle_index INTEGER(kind = 4) :: ind_p TYPE(circle_index),... (1 Reply)
Discussion started by: Marce
1 Replies

8. Programming

*** glibc detected *** ./a.out malloc() memory corruption

I am facing a problem of memory corruption. The loop runs for the first time but does not go through the second time. What could be the problem? for(int z=0;z<2;z++) { fp=fopen("poly.dat","r"); /*do something which reads this file into a 2D array*/ fclose(fp); ... (10 Replies)
Discussion started by: dare
10 Replies

9. Programming

C++ glibc detected double free or corruption(!prev) using shared library

Currently I test a shared library vendor provided in linux , the following is the simple source : #include <iostream> using namespace std; extern int test1(); extern int test2(); int main() { cout << "hello world" << endl ; return 0 ; cout << "Test 1" << endl; ... (6 Replies)
Discussion started by: barfatchen
6 Replies

10. Homework & Coursework Questions

FORTRAN error *** glibc detected ***

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: I'm doing aproximation of derivative called five-point stencil. For every value of x, in interval , in step... (0 Replies)
Discussion started by: antonija
0 Replies
CLOSEDIR(3)						     Linux Programmer's Manual						       CLOSEDIR(3)

NAME
closedir - close a directory SYNOPSIS
#include <sys/types.h> #include <dirent.h> int closedir(DIR *dirp); DESCRIPTION
The closedir() function closes the directory stream associated with dirp. A successful call to closedir() also closes the underlying file descriptor associated with dirp. The directory stream descriptor dirp is not available after this call. RETURN VALUE
The closedir() function returns 0 on success. On error, -1 is returned, and errno is set appropriately. ERRORS
EBADF Invalid directory stream descriptor dirp. CONFORMING TO
SVr4, POSIX.1-2001, 4.3BSD. SEE ALSO
close(2), opendir(3), readdir(3), rewinddir(3), scandir(3), seekdir(3), telldir(3) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2008-09-23 CLOSEDIR(3)
All times are GMT -4. The time now is 02:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy