From a1f30ecc5115b0186ad02ec76f75296906813d26 Mon Sep 17 00:00:00 2001 From: Peter Eisentraut Date: Fri, 22 Sep 2017 16:50:59 -0400 Subject: [PATCH] Fix saving and restoring umask In two cases, we set a different umask for some piece of code and restore it afterwards. But if the contained code errors out, the umask is not restored. So add TRY/CATCH blocks to fix that. --- src/backend/commands/copy.c | 11 ++++++++++- src/backend/libpq/be-fsstubs.c | 13 +++++++++++-- 2 files changed, 21 insertions(+), 3 deletions(-) diff --git a/src/backend/commands/copy.c b/src/backend/commands/copy.c index 41a828c2fe..feab7aa6e2 100644 --- a/src/backend/commands/copy.c +++ b/src/backend/commands/copy.c @@ -1802,7 +1802,16 @@ BeginCopyTo(Relation rel, errmsg("relative path not allowed for COPY to file"))); oumask = umask(S_IWGRP | S_IWOTH); - cstate->copy_file = AllocateFile(cstate->filename, PG_BINARY_W); + PG_TRY(); + { + cstate->copy_file = AllocateFile(cstate->filename, PG_BINARY_W); + } + PG_CATCH(); + { + umask(oumask); + PG_RE_THROW(); + } + PG_END_TRY(); umask(oumask); if (cstate->copy_file == NULL) ereport(ERROR, diff --git a/src/backend/libpq/be-fsstubs.c b/src/backend/libpq/be-fsstubs.c index 50e416da79..0112428e7d 100644 --- a/src/backend/libpq/be-fsstubs.c +++ b/src/backend/libpq/be-fsstubs.c @@ -538,8 +538,17 @@ lo_export(PG_FUNCTION_ARGS) */ text_to_cstring_buffer(filename, fnamebuf, sizeof(fnamebuf)); oumask = umask(S_IWGRP | S_IWOTH); - fd = OpenTransientFile(fnamebuf, O_CREAT | O_WRONLY | O_TRUNC | PG_BINARY, - S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); + PG_TRY(); + { + fd = OpenTransientFile(fnamebuf, O_CREAT | O_WRONLY | O_TRUNC | PG_BINARY, + S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); + } + PG_CATCH(); + { + umask(oumask); + PG_RE_THROW(); + } + PG_END_TRY(); umask(oumask); if (fd < 0) ereport(ERROR, -- 2.40.0