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Tom Lane 7ca37fb040 Use setenv() in preference to putenv(). ... Since at least 2001 we've used putenv() and avoided setenv(), on the grounds that the latter was unportable and not in POSIX. However, POSIX added it that same year, and by now the situation has reversed: setenv() is probably more portable than putenv(), since POSIX now treats the latter as not being a core function. And setenv() has cleaner semantics too. So, let's reverse that old policy. This commit adds a simple src/port/ implementation of setenv() for any stragglers (we have one in the buildfarm, but I'd not be surprised if that code is never used in the field). More importantly, extend win32env.c to also support setenv(). Then, replace usages of putenv() with setenv(), and get rid of some ad-hoc implementations of setenv() wannabees. Also, adjust our src/port/ implementation of unsetenv() to follow the POSIX spec that it returns an error indicator, rather than returning void as per the ancient BSD convention. I don't feel a need to make all the call sites check for errors, but the portability stub ought to match real-world practice. Discussion: https://postgr.es/m/2065122.1609212051@sss.pgh.pa.us		5 years ago
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access	Multirange datatypes	5 years ago
bootstrap	Update copyrights for 2020	6 years ago
catalog	Add support of multirange matching to the existing range GiST indexes	5 years ago
commands	Sanitize IF NOT EXISTS in EXPLAIN for CTAS and matviews	5 years ago
common	Revert "Add key management system" (978f869b99) & later commits	5 years ago
datatype	Update copyrights for 2020	6 years ago
executor	Support subscripting of arbitrary types, not only arrays.	5 years ago
fe_utils	Move connect.h from fe_utils to src/include/common.	5 years ago
foreign	Update copyrights for 2020	6 years ago
jit	jit: Reference function pointer types via llvmjit_types.c.	5 years ago
lib	Correct comment in simplehash.h.	6 years ago
libpq	Fix assorted issues in backend's GSSAPI encryption support.	5 years ago
mb	Allow Unicode escapes in any server encoding, not only UTF-8.	6 years ago
nodes	Support subscripting of arbitrary types, not only arrays.	5 years ago
optimizer	Disallow SRFs when considering sorts below Gather Merge	5 years ago
parser	Support subscripting of arbitrary types, not only arrays.	5 years ago
partitioning	Improve error cursor positions for problems with partition bounds.	5 years ago
port	Use setenv() in preference to putenv().	5 years ago
portability	Update copyrights for 2020	6 years ago
postmaster	Revert "Add key management system" (978f869b99) & later commits	5 years ago
regex	Assume that we have <wchar.h>.	6 years ago
replication	Extend the output plugin API to allow decoding of prepared xacts.	5 years ago
rewrite	Calculate extraUpdatedCols in query rewriter, not parser.	5 years ago
snowball	Update snowball	6 years ago
statistics	Improve estimation of OR clauses using extended statistics.	5 years ago
storage	Improve client error messages for immediate-stop situations.	5 years ago
tcop	Fix bogus completion tag usage in walsender	5 years ago
tsearch	Improve behavior of tsearch_readline(), and remove t_readline().	5 years ago
utils	Suppress log spam from multiple reports of SIGQUIT shutdown.	5 years ago
.gitignore	…
Makefile	…
c.h	Support subscripting of arbitrary types, not only arrays.	5 years ago
fmgr.h	Use PG_GETARG_TRANSACTIONID where appropriate	5 years ago
funcapi.h	Support for OUT parameters in procedures	5 years ago
getaddrinfo.h	Update copyrights for 2020	6 years ago
getopt_long.h	Update copyrights for 2020	6 years ago
miscadmin.h	Add hash_mem_multiplier GUC.	6 years ago
pg_config.h.in	Use setenv() in preference to putenv().	5 years ago
pg_config_ext.h.in	…
pg_config_manual.h	Add nbtree Valgrind buffer lock checks.	6 years ago
pg_getopt.h	Update copyrights for 2020	6 years ago
pg_trace.h	Update copyrights for 2020	6 years ago
pgstat.h	Revert "Add key management system" (978f869b99) & later commits	5 years ago
pgtar.h	Assorted cleanup of tar-related code.	6 years ago
pgtime.h	Update copyrights for 2020	6 years ago
port.h	Use setenv() in preference to putenv().	5 years ago
postgres.h	Update copyrights for 2020	6 years ago
postgres_ext.h	…
postgres_fe.h	Update copyrights for 2020	6 years ago
rusagestub.h	Update copyrights for 2020	6 years ago
windowapi.h	Update copyrights for 2020	6 years ago