Hi,
It seems that the open syscall is not POSIX-compliant when using both
O_CREAT|O_DIRECTORY. This was discussed in [1] with a reference to the POSIX
documentation.
A simple test program is:
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
int main(int argc, char **argv) {
int fd;
struct stat statBuf;
int result;
fd=open("xxx", O_RDWR|O_CREAT|O_DIRECTORY, 0600);
result=fstat(fd, &statBuf);
if(result) {
fprintf(stderr, "Stat failed\n");
return(1);
}
fprintf(stderr, "New element type is %d\n", S_ISDIR(statBuf.st_mode));
return(0);
}
Kind Regards,
Roman
[1] http://www.openwall.com/lists/oss-security/2014/11/26/10
DI Roman Fiedler
Scientist
Digital Safety & Security Department
Assistive Healthcare Information Technology
AIT Austrian Institute of Technology GmbH
Reininghausstraße 13/1 | 8020 Graz | Austria
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