X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=fd.c;h=b913009369ba6029fcdf4fa8378c9d926e30dd10;hp=d1e0412d3f3f22174229eab26582b9a688707e85;hb=68ae99f74f658df5eb53c7ef0127a210e3defd5e;hpb=9311067b68d9412a02c041873204bcffcb1b9fea diff --git a/fd.c b/fd.c index d1e0412d..b9130093 100644 --- a/fd.c +++ b/fd.c @@ -100,10 +100,20 @@ int mark_fd_nonblock(int fd) */ void para_fd_set(int fd, fd_set *fds, int *max_fileno) { + if (fd < 0 || fd >= FD_SETSIZE) { PARA_EMERG_LOG("fatal: tried to add invalid fd %d\n", fd); exit(EXIT_FAILURE); } +#if 0 + { + int flags = fcntl(fd, F_GETFL); + if (!(flags & O_NONBLOCK)) { + PARA_EMERG_LOG("fd %d is a blocking file descriptor\n", fd); + exit(EXIT_FAILURE); + } + } +#endif FD_SET(fd, fds); *max_fileno = PARA_MAX(*max_fileno, fd); }