diff options
Diffstat (limited to 'src/socket_wrapper.c')
| -rw-r--r-- | src/socket_wrapper.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/socket_wrapper.c b/src/socket_wrapper.c index 189c410..38df265 100644 --- a/src/socket_wrapper.c +++ b/src/socket_wrapper.c @@ -1409,10 +1409,30 @@ static int swrap_un_path_EINVAL(struct sockaddr_un *un, return 0; } +static bool swrap_dir_usable(const char *swrap_dir) +{ + struct sockaddr_un un; + int ret; + + ret = swrap_un_path(&un, swrap_dir, SOCKET_TYPE_CHAR_TCP, 0, 0); + if (ret == 0) { + return true; + } + + ret = swrap_un_path_EINVAL(&un, swrap_dir); + if (ret == 0) { + return true; + } + + return false; +} + static char *socket_wrapper_dir(void) { char *swrap_dir = NULL; char *s = getenv("SOCKET_WRAPPER_DIR"); + char *t; + bool ok; if (s == NULL) { SWRAP_LOG(SWRAP_LOG_WARN, "SOCKET_WRAPPER_DIR not set"); @@ -1427,6 +1447,17 @@ static char *socket_wrapper_dir(void) abort(); } + ok = swrap_dir_usable(swrap_dir); + if (ok) { + goto done; + } + + free(swrap_dir); + + SWRAP_LOG(SWRAP_LOG_ERROR, "SOCKET_WRAPPER_DIR is too long"); + abort(); + +done: SWRAP_LOG(SWRAP_LOG_TRACE, "socket_wrapper_dir: %s", swrap_dir); return swrap_dir; } |