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Message-ID: <3BB0D61D.1C93BC64@cornell.edu>
Date: Tue, 25 Sep 2001 15:08:14 -0400
From: Ivan Dobrianov <id11 AT cornell DOT edu>
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To: cygwin AT cygwin DOT com
Subject: open() and mode
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This may have a rather obvious answer, but I can't figure it:

Does anyone know why the following code creates a file with read/write
permissions, instead of only read permissions?
-----------------------------
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>

int main(int argc, char* argv[])
{
   int openflag = (O_BINARY | O_CREAT | O_EXCL | O_WRONLY);
   mode_t mode = 0x124;

   int fd = open ("delme.txt", openflag, mode);

   printf("fd = %d\n", fd);
   mode_t mask = umask(0);
   umask(mask);
   printf("umask = %d\n", mask);
}
-----------------------------
... then .. ls -l delme.txt gives:

-rw-r--r--   1 administ None            0 Sep 25 14:40 delme.txt

My umask is 0. I can chmod on the file to anything I want.

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