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);
}
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);
}
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);
}
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;
return(-errno);
if(flags.cl && fcntl(fd, F_SETFD, 1)){
+ err = -errno;
os_close_file(fd);
- return(-errno);
+ return err;
}
return(fd);
snprintf(sock.sun_path, sizeof(sock.sun_path), "%s", name);
fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if(fd < 0)
- return(fd);
+ if(fd < 0) {
+ err = -errno;
+ goto out;
+ }
err = connect(fd, (struct sockaddr *) &sock, sizeof(sock));
- if(err)
- return(-errno);
+ if(err) {
+ err = -errno;
+ goto out_close;
+ }
- return(fd);
+ return fd;
+
+out_close:
+ close(fd);
+out:
+ return err;
}
void os_close_file(int fd)
(int (*)(int, void *, int)) write, copy_to_user_proc));
}
-int os_file_size(char *file, long long *size_out)
+int os_file_size(char *file, unsigned long long *size_out)
{
struct uml_stat buf;
int err;
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);
}
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){
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);
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);
}
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);
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);
}