diff options
| author |   djm <djm@openbsd.org> | 2005-09-13 23:40:07 +0000 |
|---|---|---|
| committer | djm <djm@openbsd.org> | 2005-09-13 23:40:07 +0000 |
| commit | 399d21a6cfe67883be6695b6e094d8fa8afa845e (patch) | |
| tree | 9659a3b415cc9cd4d5df3df311dad5e9bea6b656 /usr.bin/ssh/ssh-keysign.c | |
| parent | more Package/FatPackage common code: separate the proxy 'next' into two (diff) | |
| download | wireguard-openbsd-399d21a6cfe67883be6695b6e094d8fa8afa845e.tar.xz wireguard-openbsd-399d21a6cfe67883be6695b6e094d8fa8afa845e.zip | |
ensure that stdio fds are attached; ok deraadt@
Diffstat (limited to 'usr.bin/ssh/ssh-keysign.c')
| -rw-r--r-- | usr.bin/ssh/ssh-keysign.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/usr.bin/ssh/ssh-keysign.c b/usr.bin/ssh/ssh-keysign.c index e3e4c33ada7..d26ec1e4fb6 100644 --- a/usr.bin/ssh/ssh-keysign.c +++ b/usr.bin/ssh/ssh-keysign.c @@ -22,7 +22,7 @@ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "includes.h" -RCSID("$OpenBSD: ssh-keysign.c,v 1.18 2004/08/23 14:29:23 dtucker Exp $"); +RCSID("$OpenBSD: ssh-keysign.c,v 1.19 2005/09/13 23:40:07 djm Exp $"); #include <openssl/evp.h> #include <openssl/rand.h> @@ -146,6 +146,13 @@ main(int argc, char **argv) u_int slen, dlen; u_int32_t rnd[256]; + /* Ensure that stdin and stdout are connected */ + if ((fd = open(_PATH_DEVNULL, O_RDWR)) < 2) + exit(1); + /* Leave /dev/null fd iff it is attached to stderr */ + if (fd > 2) + close(fd); + key_fd[0] = open(_PATH_HOST_RSA_KEY_FILE, O_RDONLY); key_fd[1] = open(_PATH_HOST_DSA_KEY_FILE, O_RDONLY); |