diff options
Diffstat (limited to 'arch/um/os-Linux')
-rw-r--r-- | arch/um/os-Linux/aio.c | 5 | ||||
-rw-r--r-- | arch/um/os-Linux/drivers/tuntap_user.c | 8 | ||||
-rw-r--r-- | arch/um/os-Linux/file.c | 82 |
3 files changed, 39 insertions, 56 deletions
diff --git a/arch/um/os-Linux/aio.c b/arch/um/os-Linux/aio.c index 182905b..e942beb 100644 --- a/arch/um/os-Linux/aio.c +++ b/arch/um/os-Linux/aio.c @@ -313,15 +313,16 @@ static int init_aio_26(void) int err; if(io_setup(256, &ctx)){ + err = -errno; printk("aio_thread failed to initialize context, err = %d\n", errno); - return -errno; + return err; } err = run_helper_thread(aio_thread, NULL, CLONE_FILES | CLONE_VM | SIGCHLD, &stack, 0); if(err < 0) - return -errno; + return err; aio_pid = err; diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c index 4b83c6c..4ba9b17 100644 --- a/arch/um/os-Linux/drivers/tuntap_user.c +++ b/arch/um/os-Linux/drivers/tuntap_user.c @@ -75,7 +75,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote, struct msghdr msg; struct cmsghdr *cmsg; struct iovec iov; - int pid, n; + int pid, n, err; sprintf(version_buf, "%d", UML_NET_VERSION); @@ -105,9 +105,10 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote, n = recvmsg(me, &msg, 0); *used_out = n; if(n < 0){ + err = -errno; printk("tuntap_open_tramp : recvmsg failed - errno = %d\n", errno); - return(-errno); + return err; } CATCH_EINTR(waitpid(pid, NULL, 0)); @@ -147,9 +148,10 @@ static int tuntap_open(void *data) ifr.ifr_flags = IFF_TAP | IFF_NO_PI; strlcpy(ifr.ifr_name, pri->dev_name, sizeof(ifr.ifr_name)); if(ioctl(pri->fd, TUNSETIFF, (void *) &ifr) < 0){ + err = -errno; printk("TUNSETIFF failed, errno = %d\n", errno); os_close_file(pri->fd); - return(-errno); + return err; } } else { diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c index fd45bb2..f55773c 100644 --- a/arch/um/os-Linux/file.c +++ b/arch/um/os-Linux/file.c @@ -119,15 +119,11 @@ int os_window_size(int fd, int *rows, int *cols) int os_new_tty_pgrp(int fd, int pid) { - if(ioctl(fd, TIOCSCTTY, 0) < 0){ - printk("TIOCSCTTY failed, errno = %d\n", errno); - return(-errno); - } + if(ioctl(fd, TIOCSCTTY, 0) < 0) + return -errno; - if(tcsetpgrp(fd, pid) < 0){ - printk("tcsetpgrp failed, errno = %d\n", errno); - return(-errno); - } + if(tcsetpgrp(fd, pid) < 0) + return -errno; return(0); } @@ -146,18 +142,12 @@ int os_set_slip(int fd) int disc, sencap; disc = N_SLIP; - if(ioctl(fd, TIOCSETD, &disc) < 0){ - printk("Failed to set slip line discipline - " - "errno = %d\n", errno); - return(-errno); - } + if(ioctl(fd, TIOCSETD, &disc) < 0) + return -errno; sencap = 0; - if(ioctl(fd, SIOCSIFENCAP, &sencap) < 0){ - printk("Failed to set slip encapsulation - " - "errno = %d\n", errno); - return(-errno); - } + if(ioctl(fd, SIOCSIFENCAP, &sencap) < 0) + return -errno; return(0); } @@ -180,22 +170,15 @@ int os_sigio_async(int master, int slave) int flags; flags = fcntl(master, F_GETFL); - if(flags < 0) { - printk("fcntl F_GETFL failed, errno = %d\n", errno); - return(-errno); - } + if(flags < 0) + return errno; if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) || - (fcntl(master, F_SETOWN, os_getpid()) < 0)){ - printk("fcntl F_SETFL or F_SETOWN failed, errno = %d\n", - errno); - return(-errno); - } + (fcntl(master, F_SETOWN, os_getpid()) < 0)) + return -errno; - if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)){ - printk("fcntl F_SETFL failed, errno = %d\n", errno); - return(-errno); - } + if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)) + return -errno; return(0); } @@ -255,7 +238,7 @@ int os_file_mode(char *file, struct openflags *mode_out) int os_open_file(char *file, struct openflags flags, int mode) { - int fd, f = 0; + int fd, err, f = 0; if(flags.r && flags.w) f = O_RDWR; else if(flags.r) f = O_RDONLY; @@ -272,8 +255,9 @@ int os_open_file(char *file, struct openflags flags, int mode) return(-errno); if(flags.cl && fcntl(fd, F_SETFD, 1)){ + err = -errno; os_close_file(fd); - return(-errno); + return err; } return(fd); @@ -383,9 +367,9 @@ int os_file_size(char *file, unsigned long long *size_out) return(fd); } if(ioctl(fd, BLKGETSIZE, &blocks) < 0){ + err = -errno; printk("Couldn't get the block size of \"%s\", " "errno = %d\n", file, errno); - err = -errno; os_close_file(fd); return(err); } @@ -473,11 +457,14 @@ int os_pipe(int *fds, int stream, int close_on_exec) int os_set_fd_async(int fd, int owner) { + int err; + /* XXX This should do F_GETFL first */ if(fcntl(fd, F_SETFL, O_ASYNC | O_NONBLOCK) < 0){ + err = -errno; printk("os_set_fd_async : failed to set O_ASYNC and " "O_NONBLOCK on fd # %d, errno = %d\n", fd, errno); - return(-errno); + return err; } #ifdef notdef if(fcntl(fd, F_SETFD, 1) < 0){ @@ -488,10 +475,11 @@ int os_set_fd_async(int fd, int owner) if((fcntl(fd, F_SETSIG, SIGIO) < 0) || (fcntl(fd, F_SETOWN, owner) < 0)){ + err = -errno; printk("os_set_fd_async : Failed to fcntl F_SETOWN " "(or F_SETSIG) fd %d to pid %d, errno = %d\n", fd, owner, errno); - return(-errno); + return err; } return(0); @@ -516,11 +504,9 @@ int os_set_fd_block(int fd, int blocking) if(blocking) flags &= ~O_NONBLOCK; else flags |= O_NONBLOCK; - if(fcntl(fd, F_SETFL, flags) < 0){ - printk("Failed to change blocking on fd # %d, errno = %d\n", - fd, errno); - return(-errno); - } + if(fcntl(fd, F_SETFL, flags) < 0) + return -errno; + return(0); } @@ -609,11 +595,8 @@ int os_create_unix_socket(char *file, int len, int close_on_exec) int sock, err; sock = socket(PF_UNIX, SOCK_DGRAM, 0); - if (sock < 0){ - printk("create_unix_socket - socket failed, errno = %d\n", - errno); - return(-errno); - } + if(sock < 0) + return -errno; if(close_on_exec) { err = os_set_exec_close(sock, 1); @@ -628,11 +611,8 @@ int os_create_unix_socket(char *file, int len, int close_on_exec) snprintf(addr.sun_path, len, "%s", file); err = bind(sock, (struct sockaddr *) &addr, sizeof(addr)); - if (err < 0){ - printk("create_listening_socket at '%s' - bind failed, " - "errno = %d\n", file, errno); - return(-errno); - } + if(err < 0) + return -errno; return(sock); } |