[Bug libfortran/59108] New: ACTION='READ' is using O_CREAT
nmm1 at cam dot ac.uk
gcc-bugzilla@gcc.gnu.org
Wed Nov 13 10:44:00 GMT 2013
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59108
Bug ID: 59108
Summary: ACTION='READ' is using O_CREAT
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: nmm1 at cam dot ac.uk
Running 'strace -v -e trace=open' on the following program:
PROGRAM Main
OPEN(11,FILE='wombat',ACTION='READ')
OPEN(12,FILE='numbat',ACTION='READ',ACCESS='STREAM')
OPEN(13,FILE='dingbat',ACTION='READ',ACCESS='DIRECT',RECL=8)
END PROGRAM Main
produces:
open("wombat", O_RDONLY|O_CREAT, 0666) = 3
open("numbat", O_RDONLY|O_CREAT, 0666) = 4
open("dingbat", O_RDONLY|O_CREAT, 0666) = 5
Not merely does this create files when the user isn't expecting it,
it fails if the directory or file system is protected against writing.
wheeler$uname -a
Linux wheeler 2.6.37.6-24-desktop #1 SMP PREEMPT 2012-10-18 22:36:08 +0200
x86_64 x86_64 x86_64 GNU/Linux
wheeler$gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/home/nmm/GCC/libexec/gcc/x86_64-unknown-linux-gnu/4.8.1/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --prefix=/home/nmm/GCC --disable-bootstrap
--enable-languages=c,c++,fortran --enable-werror=yes --disable-decimal-float
Thread model: posix
gcc version 4.8.1 (GCC)
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