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Kir Kolyshkin 33e752edd3 syscall: ensure that Getwd returns absolute path 
Since Linux kernel 2.6.36, the pathname returned by the getcwd() system
call can be prefixed with the string "(unreachable)" in some cases [1].

Getcwd should return an absolute path, and doing otherwise is a
conformance issue; it also can be dangerous, since the path returned
can be an existing relative path.

Fix by returning ENOENT in case the path is not absolute. This is
essentially the same as what glibc does (since [2]).

[1] https://man7.org/linux/man-pages/man2/getcwd.2.html#BUGS
[2] https://sourceware.org/git/?p=glibc.git;a=commit;h=52a713fdd0a30e1bd79818e2e3c4ab44ddca1a94

Change-Id: I444c80eb3c836ff7d32c64c8b65d5112fa8c710f
Reviewed-on: https://go-review.googlesource.com/c/go/+/387174
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-03-16 16:07:26 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api cmd/api: require proposal # for new API features 2022-03-14 21:43:16 +00:00
doc spec: various minor clarifications 2022-03-11 06:00:18 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc cmd/compile: set conversions to unsafe.Pointer as an escaping operation when -asan is enabled 2022-03-16 07:03:20 +00:00
src syscall: ensure that Getwd returns absolute path 2022-03-16 16:07:26 +00:00
test cmd/compile: fix wrong dict param when getting dict type 2022-03-14 17:55:47 +00:00
.gitattributes
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Bharath Kumar Uppala (individual CLA) 2021-11-29 00:57:09 +00:00
codereview.cfg
CONTRIBUTING.md
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.18 release 2022-02-28 15:43:07 +00:00
LICENSE
PATENTS
README.md README.md: update contribute URL 2021-09-30 13:33:21 +00:00
SECURITY.md

README.md

The Go Programming Language

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