ae9676a337
Under some circumstances the ksh shell doesn't fork new processes when executing scripts and the script is interpreted by the parent process. That makes the execution faster, but it means ksh needs to reuse the /proc/PID/cmdline for the new script name and arguments while the file length needs to stay untouched. The fork is skipped only when the new cmdline is shorter than the parent's cmdline and the rest of the file is filled with '\0'. This is perfectly ok until we try to read the cmdline of such process. As the read_unvectored() function replaces all zeros with chosen separator, these trailing zeros are replaced with spaces in case of the ps tool. Consequently it appends multiple spaces at the end of the arguments string even when these zeros do not represent any separators and therefore shouldn't be replaced. With this commit the read_unvectored() function skips the replacement of trailing zeros and separates valid content only. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1057600
COMPATIBILITY
This code is intended for use with Linux 2.6.xx, 3.x and
hopefully all future kernels.
INSTALLATION
If you are using git version of the project you need extra step.
./autogen.sh
After that, and everyone using .tar.xz version of procps-ng, can
do normal build. Read './configure --help' to select options for
your needs.
./configure
make
make install
If you have DejaGNU installed you can run optional test suite.
make check
HOW TO CONTRIBUTE
See Documentation/BUGS file.
PACKAGING
If you are a downstream maintainer (packager) for a Linux
distribution, please avoid causing troubles. This section
applies to you.
Avoid maintaining distribution specific patches. Send your
patches to upstream, where they are at least reviewed, if not
included.
Please forward bug reports. If your bug database is public and
busy enough to bother with, please make this known. Follow
Debian's lead in making the bug database easy to comment on via
email without need for an account.
For normal packages, ensure that you do not add debugging flags
to the CFLAGS variable.
UPSTREAM & BUG REPORTS
procps-ng <procps@freelists.org>