Fails With ENOENT In Open(2) System call with A Ja_JP.PCK Filename And O_CREAT (Doc ID 1604219.1)

Last updated on JANUARY 13, 2023

Applies to:

Symptoms

In ZFS, open(2) system call with O_CREAT could fail with the error ENOENT as a result of having error in u8_strcmp(3C) despite of the description.

This issue occurs if 

1. When ZFS file system is used. The problem will not occur on UFS file system.
2. A file is created with the non-UTF-8 and non-ASCII filename such as the ja_JP.eucJP or ja_JP.PCK string. 
3. At the same time, Someone is creating or unlinking a file is created or unlinked under the same directory where action 2 above is work on.
 

This problem will happen on Solaris 10, 11 and 11.1

The following test case is to duplicate the issue

$ cat open.sjis.c 
#include <stdio.h> 
#include <stdlib.h> 
#include <errno.h> 

#include <unistd.h> 

#include <sys/types.h> 
#include <sys/stat.h> 
#include <fcntl.h> 

const char* file1 = "\223\372\226{\214\352\203t\203@\203C\203\213"; 
const char* file2 = "file"; 

int 
main(void) 
{ 
        int fd; 
        const char* file = file1; 

         
        while (1) { 
                fd = open(file, O_WRONLY|O_CREAT|O_TRUNC, 0666); 
                if ( fd < 0 ) { 
                        perror("Failed to open(2)"); 
                        exit(1); 
                } 
                close(fd); 
                unlink(file); 
        } 
        return(0); 
} 

$ cc -o open open.sjis.c 
"open.sjis.c", line 29: warning: statement not reached 
$ 
$ ./open & 
[1] 8632 
$ 
$ ./open 
Failed to open(2): No such file or directory 
$

Cause

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