commit b8002058c45a50d893c51cf62ec96c70128fc1eb
author Helge Deller <deller@gmx.de> Thu Aug 03 23:44:47 2023 +0200
committer Richard Henderson <richard.henderson@linaro.org> Wed Aug 09 09:31:30 2023 -0700
tree 6574e6289014c21dad50672cc4e0e99465084af5
parent 47d1e982318a0d97c557ce349ea9e2b601554055

linux-user: Fix openat() emulation to correctly detect accesses to /proc

In qemu we catch accesses to files like /proc/cpuinfo or /proc/net/route
and return to the guest contents which would be visible on a real system
(instead what the host would show).

This patch fixes a bug, where for example the accesses
    cat /proc////cpuinfo
or
    cd /proc && cat cpuinfo
will not be recognized by qemu and where qemu will wrongly show
the contents of the host's /proc/cpuinfo file.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230803214450.647040-2-deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>