libhdfs: O_WRONLY/O_RDONLY different when including fcntl.h
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Key: HADOOP-2880
URL: https://issues.apache.org/jira/browse/HADOOP-2880
Project: Hadoop Core
Issue Type: Bug
Components: libhdfs
Environment: linux
Reporter: Koji Noguchi
In hdfs.h,
#ifndef O_RDONLY
#define O_RDONLY 1
#endif
#ifndef O_WRONLY
#define O_WRONLY 2
#endif
but on linux,
$ grep "define O_RDONLY" /usr/include/*/*
/usr/include/asm-i386/fcntl.h:#define O_RDONLY 00
/usr/include/asm-x86_64/fcntl.h:#define O_RDONLY 00
/usr/include/bits/fcntl.h:#define O_RDONLY 00
[EMAIL PROTECTED] ~]$ grep "define O_WRONLY" /usr/include/*/*
/usr/include/asm-i386/fcntl.h:#define O_WRONLY 01
/usr/include/asm-x86_64/fcntl.h:#define O_WRONLY 01
/usr/include/bits/fcntl.h:#define O_WRONLY 01
It took me a while to debug when hdfsOpenFile was trying to 'write' when I
meant 'read'.
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