On Wed, 16 Apr 2014 08:55:18 -0400 Jeff Layton <[email protected]> wrote:
> If the string buffers would have been overrun, set errno to EINVAL > before returning. Then, have the callers report the errors to > stderr or syslog as appropriate. > > Cc: Sebastian Krahmer <[email protected]> > Signed-off-by: Jeff Layton <[email protected]> Merged... > --- > cifscreds.c | 6 +++--- > cifskey.c | 8 ++++++-- > pam_cifscreds.c | 8 ++++---- > 3 files changed, 13 insertions(+), 9 deletions(-) > > diff --git a/cifscreds.c b/cifscreds.c > index 64d55b0cac0e..5d84c3c87873 100644 > --- a/cifscreds.c > +++ b/cifscreds.c > @@ -220,8 +220,8 @@ static int cifscreds_add(struct cmdarg *arg) > while (currentaddress) { > key_serial_t key = key_add(currentaddress, arg->user, pass, > arg->keytype); > if (key <= 0) { > - fprintf(stderr, "error: Add credential key for %s\n", > - currentaddress); > + fprintf(stderr, "error: Add credential key for %s: > %s\n", > + currentaddress, strerror(errno)); > } else { > if (keyctl(KEYCTL_SETPERM, key, CIFS_KEY_PERMS) < 0) { > fprintf(stderr, "error: Setting permissons " > @@ -422,7 +422,7 @@ static int cifscreds_update(struct cmdarg *arg) > key_serial_t key = key_add(addrs[id], arg->user, pass, > arg->keytype); > if (key <= 0) > fprintf(stderr, "error: Update credential key " > - "for %s\n", addrs[id]); > + "for %s: %s\n", addrs[id], strerror(errno)); > } > > return EXIT_SUCCESS; > diff --git a/cifskey.c b/cifskey.c > index 4f01ed0e10bd..919540f549ad 100644 > --- a/cifskey.c > +++ b/cifskey.c > @@ -47,13 +47,17 @@ key_add(const char *addr, const char *user, const char > *pass, char keytype) > char val[MOUNT_PASSWD_SIZE + MAX_USERNAME_SIZE + 2]; > > /* set key description */ > - if (snprintf(desc, sizeof(desc), "%s:%c:%s", KEY_PREFIX, keytype, addr) > >= (int)sizeof(desc)) > + if (snprintf(desc, sizeof(desc), "%s:%c:%s", KEY_PREFIX, keytype, addr) > >= (int)sizeof(desc)) { > + errno = EINVAL; > return -1; > + } > > /* set payload contents */ > len = snprintf(val, sizeof(val), "%s:%s", user, pass); > - if (len >= (int)sizeof(val)) > + if (len >= (int)sizeof(val)) { > + errno = EINVAL; > return -1; > + } > > return add_key(CIFS_KEY_TYPE, desc, val, len + 1, DEST_KEYRING); > } > diff --git a/pam_cifscreds.c b/pam_cifscreds.c > index fb23117953f0..3459105045b2 100644 > --- a/pam_cifscreds.c > +++ b/pam_cifscreds.c > @@ -233,8 +233,8 @@ static int cifscreds_pam_add(pam_handle_t *ph, const char > *user, const char *pas > while (currentaddress) { > key_serial_t key = key_add(currentaddress, user, password, > keytype); > if (key <= 0) { > - pam_syslog(ph, LOG_ERR, "error: Add credential key for > %s", > - currentaddress); > + pam_syslog(ph, LOG_ERR, "error: Add credential key for > %s: %s", > + currentaddress, strerror(errno)); > } else { > if ((args & ARG_DEBUG) == ARG_DEBUG) { > pam_syslog(ph, LOG_DEBUG, "credential key for > \\\\%s\\%s added", > @@ -336,8 +336,8 @@ static int cifscreds_pam_update(pam_handle_t *ph, const > char *user, const char * > for (id = 0; id < count; id++) { > key_serial_t key = key_add(currentaddress, user, password, > keytype); > if (key <= 0) { > - pam_syslog(ph, LOG_ERR, "error: Update credential key > for %s", > - currentaddress); > + pam_syslog(ph, LOG_ERR, "error: Update credential key > for %s: %s", > + currentaddress, strerror(errno)); > } > } > -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
