diff options
| -rw-r--r-- | libusbmuxd/sock_stuff.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/libusbmuxd/sock_stuff.c b/libusbmuxd/sock_stuff.c index 137375d..e60370c 100644 --- a/libusbmuxd/sock_stuff.c +++ b/libusbmuxd/sock_stuff.c @@ -205,6 +205,7 @@ int check_fd(int fd, fd_mode fdm, unsigned int timeout) int sret; int eagain; struct timeval to; + struct timeval *pto; if (fd <= 0) { if (verbose >= 2) @@ -215,8 +216,13 @@ int check_fd(int fd, fd_mode fdm, unsigned int timeout) FD_ZERO(&fds); FD_SET(fd, &fds); - to.tv_sec = (time_t) (timeout / 1000); - to.tv_usec = (time_t) ((timeout - (to.tv_sec * 1000)) * 1000); + if (timeout > 0) { + to.tv_sec = (time_t) (timeout / 1000); + to.tv_usec = (time_t) ((timeout - (to.tv_sec * 1000)) * 1000); + pto = &to; + } else { + pto = NULL; + } sret = -1; @@ -224,13 +230,13 @@ int check_fd(int fd, fd_mode fdm, unsigned int timeout) eagain = 0; switch (fdm) { case FD_READ: - sret = select(fd + 1, &fds, NULL, NULL, &to); + sret = select(fd + 1, &fds, NULL, NULL, pto); break; case FD_WRITE: - sret = select(fd + 1, NULL, &fds, NULL, &to); + sret = select(fd + 1, NULL, &fds, NULL, pto); break; case FD_EXCEPT: - sret = select(fd + 1, NULL, NULL, &fds, &to); + sret = select(fd + 1, NULL, NULL, &fds, pto); break; default: return -1; |