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| author | Peter Eisentraut <peter_e@gmx.net> | 2017-09-22 16:50:59 -0400 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2017-09-23 10:05:28 -0400 |
| commit | 9bf04994697dd094032d08682a25cbba7aba523f (patch) | |
| tree | f1b0808a5620cc1ad7f20f279705ded076f21732 | |
| parent | dbd6099fbc7783aa167eebc15a0688a613e16635 (diff) | |
| download | postgresql-9bf04994697dd094032d08682a25cbba7aba523f.tar.gz postgresql-9bf04994697dd094032d08682a25cbba7aba523f.zip | |
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.
| -rw-r--r-- | src/backend/commands/copy.c | 11 | ||||
| -rw-r--r-- | 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 3eba9efcc63..71bec156cdb 100644 --- a/src/backend/commands/copy.c +++ b/src/backend/commands/copy.c @@ -1619,7 +1619,16 @@ 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 bcc90b9be2a..10cb1e14926 100644 --- a/src/backend/libpq/be-fsstubs.c +++ b/src/backend/libpq/be-fsstubs.c @@ -540,8 +540,17 @@ 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, |