sopen() function in filehandling - "C"

[Amrit Agr]

Hi Developers, I have read about sopen() function to open a file in shared mode. Here is the code.

#include <stdio.h>
#include <fcntl.h>
#include <sys\stat.h>
#include <io.h>
#include <share.h>
void main(void);
void main(void)
{
int file_handle;
/* Note that sopen() is not ANSI compliant */
file_handle = sopen"D:\\Study\\file.txt", O_RDWR, SH_DENYNO);
close(file_handle);
}

I am getting "-1" on file_handle and program is also getting crash. Can u please help me out.

[John Schroedl]

Check the documentation. A hint: You need to check errno to get the reason for the failure. Compare that result to the items in errno.h (ex. EACCES, EEXIST, etc..).

[ramrooney]

Hi, This is possible, when the file mentioned is not present in the corresponding path or the file name is wrong you get the file handle as -1. And its crashing because, you are trying to close a invalid file handle in close() api.