diff options
| author | Peter Eisentraut <peter_e@gmx.net> | 2017-09-22 16:50:59 -0400 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2017-09-23 10:05:40 -0400 |
| commit | e0f5710c5e8b9502ac8bcd821d3418053ed38f7a (patch) | |
| tree | e9a597ffe1ce6ea8fe20a9a3b66e23475fa284e0 | |
| parent | 2020f90bf6753dea790caa7dd9983b6edd5b17c5 (diff) | |
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 e71b9abdeff..29c2a48520f 100644 --- a/src/backend/commands/copy.c +++ b/src/backend/commands/copy.c @@ -1570,7 +1570,16 @@ 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 fa0038320b1..792cff0fc5c 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, |