diff options
Diffstat (limited to 'nscd/connections.c')
| -rw-r--r-- | nscd/connections.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/nscd/connections.c b/nscd/connections.c index 32a1077819..72581071af 100644 --- a/nscd/connections.c +++ b/nscd/connections.c @@ -469,6 +469,13 @@ fail: } +#ifdef O_CLOEXEC +# define EXTRA_O_FLAGS O_CLOEXEC +#else +# define EXTRA_O_FLAGS 0 +#endif + + /* Initialize database information structures. */ void nscd_init (void) @@ -491,7 +498,7 @@ nscd_init (void) if (dbs[cnt].persistent) { /* Try to open the appropriate file on disk. */ - int fd = open (dbs[cnt].db_filename, O_RDWR); + int fd = open (dbs[cnt].db_filename, O_RDWR | EXTRA_O_FLAGS); if (fd != -1) { struct stat64 st; @@ -570,7 +577,8 @@ nscd_init (void) /* We also need a read-only descriptor. */ if (dbs[cnt].shared) { - dbs[cnt].ro_fd = open (dbs[cnt].db_filename, O_RDONLY); + dbs[cnt].ro_fd = open (dbs[cnt].db_filename, + O_RDONLY | EXTRA_O_FLAGS); if (dbs[cnt].ro_fd == -1) dbg_log (_("\ cannot create read-only descriptor for \"%s\"; no mmap"), @@ -607,22 +615,23 @@ cannot create read-only descriptor for \"%s\"; no mmap"), if (dbs[cnt].persistent) { fd = open (dbs[cnt].db_filename, - O_RDWR | O_CREAT | O_EXCL | O_TRUNC, + O_RDWR | O_CREAT | O_EXCL | O_TRUNC | EXTRA_O_FLAGS, S_IRUSR | S_IWUSR); if (fd != -1 && dbs[cnt].shared) - ro_fd = open (dbs[cnt].db_filename, O_RDONLY); + ro_fd = open (dbs[cnt].db_filename, + O_RDONLY | EXTRA_O_FLAGS); } else { char fname[] = _PATH_NSCD_XYZ_DB_TMP; - fd = mkstemp (fname); + fd = mkostemp (fname, EXTRA_O_FLAGS); /* We do not need the file name anymore after we opened another file descriptor in read-only mode. */ if (fd != -1) { if (dbs[cnt].shared) - ro_fd = open (fname, O_RDONLY); + ro_fd = open (fname, O_RDONLY | EXTRA_O_FLAGS); unlink (fname); } @@ -741,6 +750,11 @@ cannot create read-only descriptor for \"%s\"; no mmap"), } } +#if !defined O_CLOEXEC || !defined __ASSUME_O_CLOEXEC + /* We do not check here whether the O_CLOEXEC provided to the + open call was successful or not. The two fcntl calls are + only performed once each per process start-up and therefore + is not noticeable at all. */ if (paranoia && ((dbs[cnt].wr_fd != -1 && fcntl (dbs[cnt].wr_fd, F_SETFD, FD_CLOEXEC) == -1) @@ -752,6 +766,7 @@ cannot set socket to close on exec: %s; disabling paranoia mode"), strerror (errno)); paranoia = 0; } +#endif if (dbs[cnt].head == NULL) { |