https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248184
Bug ID: 248184
Summary: readlink("/proc/curproc/file" returns random results
Product: Base System
Version: 12.1-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: joerg.schill...@fokus.fraunhofer.de
The expected returned string is the first argument to the exec*() call, but it
returns a random hardlink to that file instead.
This prevents it from being used to detect how a program has been called and to
select the dedicated behavior from a fat binary, that e.g. implements both
POSIX and non-POSIX behavior.
I came over that problem when calling the parallel version of SunPro Make as:
/opt/schily/bin/dmake
and readlink(/porc/curproc/file) returned /opt/schily/xpg4/bin/make
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