C Internship - Sanfoundry

If you are looking for an internship in C programming / algorithm areas, kindly run the C code mentioned below in your computer (preferably Linux ubuntu / redhat / fedora / centos / debian / suse, etc…). Your computer will seem to hang after 5 to 10 minutes of running this code or maybe the program will crash. So, run and review the following C-code under Linux platform & identify 10 Issues with this code.

```
/*
```

 * Sanfoundry.com Memory Leak Program – India Internship Bangalore

 * Author: Manish Kumar Bhojasia, Location: Bangalore, India

```
 */
```
```
 
```
```
#include <stdio.h>
```
```
#include <stdlib.h>
```
```
#include <string.h>
```
```
 
```
```
#define KB1     1024
```
```
#define MEMSIZE (4 * KB1)
```
```
 
```

char *string = "IDENTIFY 10 ISSUES IN THIS MEMLEAK PROGRAM";

char *gstring = "IDENTIFY 10 ISSUES IN THIS MEMLEAK PROGRAM";

```
char *gptr;
```
```
int num;
```
```
 
```
```
char * f1_alloc(void);
```
```
char * f2_copyme(void);
```
```
void   f3_free(char *);
```
```
 
```
```
main()
```
```
{
```
```
    srand((int)getpid());
```
```
    while (1) {
```
```
        gptr = f1_alloc();
```
```
        strcpy(gptr, string);
```
```
        f2_copyme();
```
```
        f3_free(gptr);
```
```
    }
```
```
}
```
```
 
```
```
char *f1_alloc()
```
```
{
```
```
    return (malloc(MEMSIZE));
```
```
}
```
```
char *f2_copyme()
```
```
{
```
```
    static int len, i = 0;
```
```
    char *s;
```
```
 
```
```
    len = strlen(string);
```
```
    s = (char *)malloc(len);
```
```
    strncpy(s, string, len);
```
```
    i++;
```
```
    if (!(i % MEMSIZE))
```
```
        printf("i=%d, %s\n", i, s);
```
```
}
```
```
 
```
```
void f3_free(char *p)
```
```
{
```
```
    num = rand() % 3;
```
```
    if (!num)
```
```
        free(p);
```
```
}
```

After deep analysis of the above code and running the code in your computer, note down those 10 issues along with line numbers in a document and email that document to [email protected] with subject as “C Programming Internship Application – 10 Bugs Identified“. We will review your submission and if it’s correct, you would be called for an Internship in C Programming / Algorithm at Sanfoundry.

« Prev - Data Science Internship - Apr-2024

» Next - Machine Learning Internship - Apr-2024

Recommended Articles: