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Diffstat (limited to 'libusbmuxd/sock_stuff.c')
-rw-r--r--libusbmuxd/sock_stuff.c16
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;