diff options
Diffstat (limited to 'usr.sbin/pwd_mkdb/pwd_mkdb.c')
| -rw-r--r-- | usr.sbin/pwd_mkdb/pwd_mkdb.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/usr.sbin/pwd_mkdb/pwd_mkdb.c b/usr.sbin/pwd_mkdb/pwd_mkdb.c index 0ba68a5..c75804a 100644 --- a/usr.sbin/pwd_mkdb/pwd_mkdb.c +++ b/usr.sbin/pwd_mkdb/pwd_mkdb.c @@ -51,6 +51,7 @@ __FBSDID("$FreeBSD$"); #include <err.h> #include <errno.h> #include <fcntl.h> +#include <libgen.h> #include <limits.h> #include <pwd.h> #include <signal.h> @@ -224,14 +225,14 @@ main(int argc, char *argv[]) clean = FILE_INSECURE; cp(buf2, buf, PERM_INSECURE); dp = dbopen(buf, - O_RDWR|O_EXCL, PERM_INSECURE, DB_HASH, &openinfo); + O_RDWR|O_EXCL|O_SYNC, PERM_INSECURE, DB_HASH, &openinfo); if (dp == NULL) error(buf); clean = FILE_SECURE; cp(sbuf2, sbuf, PERM_SECURE); sdp = dbopen(sbuf, - O_RDWR|O_EXCL, PERM_SECURE, DB_HASH, &openinfo); + O_RDWR|O_EXCL|O_SYNC, PERM_SECURE, DB_HASH, &openinfo); if (sdp == NULL) error(sbuf); @@ -288,13 +289,13 @@ main(int argc, char *argv[]) method = 0; } else { dp = dbopen(buf, - O_RDWR|O_CREAT|O_EXCL, PERM_INSECURE, DB_HASH, &openinfo); + O_RDWR|O_CREAT|O_EXCL|O_SYNC, PERM_INSECURE, DB_HASH, &openinfo); if (dp == NULL) error(buf); clean = FILE_INSECURE; sdp = dbopen(sbuf, - O_RDWR|O_CREAT|O_EXCL, PERM_SECURE, DB_HASH, &openinfo); + O_RDWR|O_CREAT|O_EXCL|O_SYNC, PERM_SECURE, DB_HASH, &openinfo); if (sdp == NULL) error(sbuf); clean = FILE_SECURE; @@ -714,13 +715,27 @@ void mv(char *from, char *to) { char buf[MAXPATHLEN]; + char *to_dir; + int to_dir_fd = -1; - if (rename(from, to)) { + /* + * Make sure file is safe on disk. To improve performance we will call + * fsync() to the directory where file lies + */ + if (rename(from, to) != 0 || + (to_dir = dirname(to)) == NULL || + (to_dir_fd = open(to_dir, O_RDONLY|O_DIRECTORY)) == -1 || + fsync(to_dir_fd) != 0) { int sverrno = errno; (void)snprintf(buf, sizeof(buf), "%s to %s", from, to); errno = sverrno; + if (to_dir_fd != -1) + close(to_dir_fd); error(buf); } + + if (to_dir_fd != -1) + close(to_dir_fd); } void |
