1 /* $Id: sys_sunos.c,v 1.137 2002/02/08 03:57:14 davem Exp $
2 * sys_sunos.c: SunOS specific syscall compatibility support.
4 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
5 * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
7 * Based upon preliminary work which is:
9 * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
13 #include <linux/kernel.h>
14 #include <linux/sched.h>
15 #include <linux/types.h>
16 #include <linux/mman.h>
18 #include <linux/swap.h>
20 #include <linux/file.h>
21 #include <linux/resource.h>
22 #include <linux/ipc.h>
23 #include <linux/shm.h>
24 #include <linux/msg.h>
25 #include <linux/sem.h>
26 #include <linux/signal.h>
27 #include <linux/uio.h>
28 #include <linux/utsname.h>
29 #include <linux/major.h>
30 #include <linux/stat.h>
31 #include <linux/slab.h>
32 #include <linux/pagemap.h>
33 #include <linux/errno.h>
34 #include <linux/smp.h>
35 #include <linux/smp_lock.h>
36 #include <linux/syscalls.h>
40 #include <asm/uaccess.h>
42 #include <linux/segment.h>
46 #include <asm/pgtable.h>
47 #include <asm/pconf.h>
48 #include <asm/idprom.h> /* for gethostid() */
49 #include <asm/unistd.h>
50 #include <asm/system.h>
52 /* For the nfs mount emulation */
53 #include <linux/socket.h>
55 #include <linux/nfs.h>
56 #include <linux/nfs2.h>
57 #include <linux/nfs_mount.h>
59 /* for sunos_select */
60 #include <linux/time.h>
61 #include <linux/personality.h>
63 /* NR_OPEN is now larger and dynamic in recent kernels. */
64 #define SUNOS_NR_OPEN 256
66 /* We use the SunOS mmap() semantics. */
67 asmlinkage unsigned long sunos_mmap(unsigned long addr, unsigned long len,
68 unsigned long prot, unsigned long flags,
69 unsigned long fd, unsigned long off)
71 struct file * file = NULL;
72 unsigned long retval, ret_type;
74 if (flags & MAP_NORESERVE) {
77 printk("%s: unimplemented SunOS MAP_NORESERVE mmap() flag\n",
79 flags &= ~MAP_NORESERVE;
82 if (!(flags & MAP_ANONYMOUS)) {
83 if (fd >= SUNOS_NR_OPEN)
91 /* If this is ld.so or a shared library doing an mmap
92 * of /dev/zero, transform it into an anonymous mapping.
93 * SunOS is so stupid some times... hmph!
96 if (imajor(file->f_dentry->d_inode) == MEM_MAJOR &&
97 iminor(file->f_dentry->d_inode) == 5) {
98 flags |= MAP_ANONYMOUS;
103 ret_type = flags & _MAP_NEW;
106 if (!(flags & MAP_FIXED))
109 if (ARCH_SUN4C_SUN4 &&
111 ((flags & MAP_FIXED) &&
112 addr < 0xe0000000 && addr + len > 0x20000000)))
115 /* See asm-sparc/uaccess.h */
116 if (len > TASK_SIZE - PAGE_SIZE ||
117 addr + len > TASK_SIZE - PAGE_SIZE)
121 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
122 down_write(¤t->mm->mmap_sem);
123 retval = do_mmap(file, addr, len, prot, flags, off);
124 up_write(¤t->mm->mmap_sem);
126 retval = ((retval < PAGE_OFFSET) ? 0 : retval);
135 /* lmbench calls this, just say "yeah, ok" */
136 asmlinkage int sunos_mctl(unsigned long addr, unsigned long len, int function, char *arg)
141 /* SunOS is completely broken... it returns 0 on success, otherwise
142 * ENOMEM. For sys_sbrk() it wants the old brk value as a return
143 * on success and ENOMEM as before on failure.
145 asmlinkage int sunos_brk(unsigned long brk)
147 int freepages, retval = -ENOMEM;
149 unsigned long newbrk, oldbrk;
151 down_write(¤t->mm->mmap_sem);
152 if (ARCH_SUN4C_SUN4) {
153 if (brk >= 0x20000000 && brk < 0xe0000000) {
158 if (brk < current->mm->end_code)
161 newbrk = PAGE_ALIGN(brk);
162 oldbrk = PAGE_ALIGN(current->mm->brk);
164 if (oldbrk == newbrk) {
165 current->mm->brk = brk;
170 * Always allow shrinking brk
172 if (brk <= current->mm->brk) {
173 current->mm->brk = brk;
174 do_munmap(current->mm, newbrk, oldbrk-newbrk);
178 * Check against rlimit and stack..
181 rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
182 if (rlim >= RLIM_INFINITY)
184 if (brk - current->mm->end_code > rlim)
188 * Check against existing mmap mappings.
190 if (find_vma_intersection(current->mm, oldbrk, newbrk+PAGE_SIZE))
194 * stupid algorithm to decide if we have enough memory: while
195 * simple, it hopefully works in most obvious cases.. Easy to
196 * fool it, but this should catch most mistakes.
198 freepages = get_page_cache_size();
200 freepages += nr_free_pages();
201 freepages += nr_swap_pages;
202 freepages -= num_physpages >> 4;
203 freepages -= (newbrk-oldbrk) >> PAGE_SHIFT;
207 * Ok, we have probably got enough memory - let it rip.
209 current->mm->brk = brk;
210 do_brk(oldbrk, newbrk-oldbrk);
213 up_write(¤t->mm->mmap_sem);
217 asmlinkage unsigned long sunos_sbrk(int increment)
220 unsigned long oldbrk;
222 /* This should do it hopefully... */
224 oldbrk = current->mm->brk;
225 error = sunos_brk(((int) current->mm->brk) + increment);
232 /* XXX Completely undocumented, and completely magic...
233 * XXX I believe it is to increase the size of the stack by
234 * XXX argument 'increment' and return the new end of stack
237 asmlinkage unsigned long sunos_sstk(int increment)
240 printk("%s: Call to sunos_sstk(increment<%d>) is unsupported\n",
241 current->comm, increment);
246 /* Give hints to the kernel as to what paging strategy to use...
247 * Completely bogus, don't remind me.
249 #define VA_NORMAL 0 /* Normal vm usage expected */
250 #define VA_ABNORMAL 1 /* Abnormal/random vm usage probable */
251 #define VA_SEQUENTIAL 2 /* Accesses will be of a sequential nature */
252 #define VA_INVALIDATE 3 /* Page table entries should be flushed ??? */
253 static char *vstrings[] = {
260 asmlinkage void sunos_vadvise(unsigned long strategy)
262 /* I wanna see who uses this... */
264 printk("%s: Advises us to use %s paging strategy\n",
266 strategy <= 3 ? vstrings[strategy] : "BOGUS");
270 /* This just wants the soft limit (ie. rlim_cur element) of the RLIMIT_NOFILE
271 * resource limit and is for backwards compatibility with older sunos
274 asmlinkage long sunos_getdtablesize(void)
276 return SUNOS_NR_OPEN;
279 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
281 asmlinkage unsigned long sunos_sigblock(unsigned long blk_mask)
285 spin_lock_irq(¤t->sighand->siglock);
286 old = current->blocked.sig[0];
287 current->blocked.sig[0] |= (blk_mask & _BLOCKABLE);
289 spin_unlock_irq(¤t->sighand->siglock);
293 asmlinkage unsigned long sunos_sigsetmask(unsigned long newmask)
295 unsigned long retval;
297 spin_lock_irq(¤t->sighand->siglock);
298 retval = current->blocked.sig[0];
299 current->blocked.sig[0] = (newmask & _BLOCKABLE);
301 spin_unlock_irq(¤t->sighand->siglock);
305 /* SunOS getdents is very similar to the newer Linux (iBCS2 compliant) */
306 /* getdents system call, the format of the structure just has a different */
307 /* layout (d_off+d_ino instead of d_ino+d_off) */
308 struct sunos_dirent {
311 unsigned short d_reclen;
312 unsigned short d_namlen;
316 struct sunos_dirent_callback {
317 struct sunos_dirent __user *curr;
318 struct sunos_dirent __user *previous;
323 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
324 #define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
326 static int sunos_filldir(void * __buf, const char * name, int namlen,
327 loff_t offset, ino_t ino, unsigned int d_type)
329 struct sunos_dirent __user *dirent;
330 struct sunos_dirent_callback * buf = __buf;
331 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
333 buf->error = -EINVAL; /* only used if we fail.. */
334 if (reclen > buf->count)
336 dirent = buf->previous;
338 put_user(offset, &dirent->d_off);
340 buf->previous = dirent;
341 put_user(ino, &dirent->d_ino);
342 put_user(namlen, &dirent->d_namlen);
343 put_user(reclen, &dirent->d_reclen);
344 copy_to_user(dirent->d_name, name, namlen);
345 put_user(0, dirent->d_name + namlen);
346 dirent = (void __user *) dirent + reclen;
348 buf->count -= reclen;
352 asmlinkage int sunos_getdents(unsigned int fd, void __user *dirent, int cnt)
355 struct sunos_dirent __user *lastdirent;
356 struct sunos_dirent_callback buf;
359 if (fd >= SUNOS_NR_OPEN)
367 if (cnt < (sizeof(struct sunos_dirent) + 255))
370 buf.curr = (struct sunos_dirent __user *) dirent;
375 error = vfs_readdir(file, sunos_filldir, &buf);
379 lastdirent = buf.previous;
382 put_user(file->f_pos, &lastdirent->d_off);
383 error = cnt - buf.count;
392 /* Old sunos getdirentries, severely broken compatibility stuff here. */
393 struct sunos_direntry {
395 unsigned short d_reclen;
396 unsigned short d_namlen;
400 struct sunos_direntry_callback {
401 struct sunos_direntry __user *curr;
402 struct sunos_direntry __user *previous;
407 static int sunos_filldirentry(void * __buf, const char * name, int namlen,
408 loff_t offset, ino_t ino, unsigned int d_type)
410 struct sunos_direntry __user *dirent;
411 struct sunos_direntry_callback *buf = __buf;
412 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
414 buf->error = -EINVAL; /* only used if we fail.. */
415 if (reclen > buf->count)
417 dirent = buf->previous;
419 buf->previous = dirent;
420 put_user(ino, &dirent->d_ino);
421 put_user(namlen, &dirent->d_namlen);
422 put_user(reclen, &dirent->d_reclen);
423 copy_to_user(dirent->d_name, name, namlen);
424 put_user(0, dirent->d_name + namlen);
425 dirent = (void __user *) dirent + reclen;
427 buf->count -= reclen;
431 asmlinkage int sunos_getdirentries(unsigned int fd, void __user *dirent,
432 int cnt, unsigned int __user *basep)
435 struct sunos_direntry __user *lastdirent;
436 struct sunos_direntry_callback buf;
439 if (fd >= SUNOS_NR_OPEN)
447 if (cnt < (sizeof(struct sunos_direntry) + 255))
450 buf.curr = (struct sunos_direntry __user *) dirent;
455 error = vfs_readdir(file, sunos_filldirentry, &buf);
459 lastdirent = buf.previous;
462 put_user(file->f_pos, basep);
463 error = cnt - buf.count;
472 struct sunos_utsname {
481 asmlinkage int sunos_uname(struct sunos_utsname __user *name)
485 ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0], sizeof(name->sname) - 1);
487 ret |= __copy_to_user(&name->nname[0], &system_utsname.nodename[0], sizeof(name->nname) - 1);
488 ret |= __put_user('\0', &name->nname[8]);
489 ret |= __copy_to_user(&name->rel[0], &system_utsname.release[0], sizeof(name->rel) - 1);
490 ret |= __copy_to_user(&name->ver[0], &system_utsname.version[0], sizeof(name->ver) - 1);
491 ret |= __copy_to_user(&name->mach[0], &system_utsname.machine[0], sizeof(name->mach) - 1);
494 return ret ? -EFAULT : 0;
497 asmlinkage int sunos_nosys(void)
499 struct pt_regs *regs;
504 regs = current->thread.kregs;
505 info.si_signo = SIGSYS;
507 info.si_code = __SI_FAULT|0x100;
508 info.si_addr = (void __user *)regs->pc;
509 info.si_trapno = regs->u_regs[UREG_G1];
510 send_sig_info(SIGSYS, &info, current);
512 printk("Process makes ni_syscall number %d, register dump:\n",
513 (int) regs->u_regs[UREG_G1]);
520 /* This is not a real and complete implementation yet, just to keep
521 * the easy SunOS binaries happy.
523 asmlinkage int sunos_fpathconf(int fd, int name)
546 case _PCONF_CHRESTRICT: /* XXX Investigate XXX */
549 case _PCONF_NOTRUNC: /* XXX Investigate XXX */
550 case _PCONF_VDISABLE:
560 asmlinkage int sunos_pathconf(char __user *path, int name)
564 ret = sunos_fpathconf(0, name); /* XXX cheese XXX */
568 /* SunOS mount system call emulation */
570 asmlinkage int sunos_select(int width, fd_set __user *inp, fd_set __user *outp,
571 fd_set __user *exp, struct timeval __user *tvp)
575 /* SunOS binaries expect that select won't change the tvp contents */
576 ret = sys_select (width, inp, outp, exp, tvp);
577 if (ret == -EINTR && tvp) {
580 __get_user(sec, &tvp->tv_sec);
581 __get_user(usec, &tvp->tv_usec);
583 if (sec == 0 && usec == 0)
589 asmlinkage void sunos_nop(void)
594 /* SunOS mount/umount. */
595 #define SMNT_RDONLY 1
596 #define SMNT_NOSUID 2
597 #define SMNT_NEWTYPE 4
599 #define SMNT_REMOUNT 16
600 #define SMNT_NOSUB 32
601 #define SMNT_MULTI 64
602 #define SMNT_SYS5 128
605 char fh_data [NFS_FHSIZE];
608 struct sunos_nfs_mount_args {
609 struct sockaddr_in __user *addr; /* file server address */
610 struct nfs_fh __user *fh; /* File handle to be mounted */
611 int flags; /* flags */
612 int wsize; /* write size in bytes */
613 int rsize; /* read size in bytes */
614 int timeo; /* initial timeout in .1 secs */
615 int retrans; /* times to retry send */
616 char __user *hostname; /* server's hostname */
617 int acregmin; /* attr cache file min secs */
618 int acregmax; /* attr cache file max secs */
619 int acdirmin; /* attr cache dir min secs */
620 int acdirmax; /* attr cache dir max secs */
621 char __user *netname; /* server's netname */
625 /* Bind the socket on a local reserved port and connect it to the
626 * remote server. This on Linux/i386 is done by the mount program,
630 sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr)
632 struct sockaddr_in local;
633 struct sockaddr_in server;
635 struct socket *socket;
644 inode = file->f_dentry->d_inode;
646 socket = SOCKET_I(inode);
647 local.sin_family = AF_INET;
648 local.sin_addr.s_addr = INADDR_ANY;
650 /* IPPORT_RESERVED = 1024, can't find the definition in the kernel */
653 local.sin_port = htons (--try_port);
654 ret = socket->ops->bind(socket, (struct sockaddr*)&local,
656 } while (ret && try_port > (1024 / 2));
661 server.sin_family = AF_INET;
662 server.sin_addr = addr->sin_addr;
663 server.sin_port = NFS_PORT;
665 /* Call sys_connect */
666 ret = socket->ops->connect (socket, (struct sockaddr *) &server,
667 sizeof (server), file->f_flags);
677 static int get_default (int value, int def_value)
685 static int sunos_nfs_mount(char *dir_name, int linux_flags, void __user *data)
688 char *the_name, *mount_page;
689 struct nfs_mount_data linux_nfs_mount;
690 struct sunos_nfs_mount_args sunos_mount;
692 /* Ok, here comes the fun part: Linux's nfs mount needs a
693 * socket connection to the server, but SunOS mount does not
694 * require this, so we use the information on the destination
695 * address to create a socket and bind it to a reserved
696 * port on this system
698 if (copy_from_user(&sunos_mount, data, sizeof(sunos_mount)))
701 server_fd = sys_socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
705 if (copy_from_user(&linux_nfs_mount.addr,sunos_mount.addr,
706 sizeof(*sunos_mount.addr)) ||
707 copy_from_user(&linux_nfs_mount.root,sunos_mount.fh,
708 sizeof(*sunos_mount.fh))) {
709 sys_close (server_fd);
713 if (!sunos_nfs_get_server_fd (server_fd, &linux_nfs_mount.addr)){
714 sys_close (server_fd);
718 /* Now, bind it to a locally reserved port */
719 linux_nfs_mount.version = NFS_MOUNT_VERSION;
720 linux_nfs_mount.flags = sunos_mount.flags;
721 linux_nfs_mount.fd = server_fd;
723 linux_nfs_mount.rsize = get_default (sunos_mount.rsize, 8192);
724 linux_nfs_mount.wsize = get_default (sunos_mount.wsize, 8192);
725 linux_nfs_mount.timeo = get_default (sunos_mount.timeo, 10);
726 linux_nfs_mount.retrans = sunos_mount.retrans;
728 linux_nfs_mount.acregmin = sunos_mount.acregmin;
729 linux_nfs_mount.acregmax = sunos_mount.acregmax;
730 linux_nfs_mount.acdirmin = sunos_mount.acdirmin;
731 linux_nfs_mount.acdirmax = sunos_mount.acdirmax;
733 the_name = getname(sunos_mount.hostname);
734 if (IS_ERR(the_name))
735 return PTR_ERR(the_name);
737 strlcpy(linux_nfs_mount.hostname, the_name,
738 sizeof(linux_nfs_mount.hostname));
741 mount_page = (char *) get_zeroed_page(GFP_KERNEL);
745 memcpy(mount_page, &linux_nfs_mount, sizeof(linux_nfs_mount));
747 err = do_mount("", dir_name, "nfs", linux_flags, mount_page);
749 free_page((unsigned long) mount_page);
754 sunos_mount(char __user *type, char __user *dir, int flags, void __user *data)
758 char *dev_fname = NULL;
759 char *dir_page, *type_page;
761 if (!capable (CAP_SYS_ADMIN))
765 /* We don't handle the integer fs type */
766 if ((flags & SMNT_NEWTYPE) == 0)
769 /* Do not allow for those flags we don't support */
770 if (flags & (SMNT_GRPID|SMNT_NOSUB|SMNT_MULTI|SMNT_SYS5))
773 if (flags & SMNT_REMOUNT)
774 linux_flags |= MS_REMOUNT;
775 if (flags & SMNT_RDONLY)
776 linux_flags |= MS_RDONLY;
777 if (flags & SMNT_NOSUID)
778 linux_flags |= MS_NOSUID;
780 dir_page = getname(dir);
781 ret = PTR_ERR(dir_page);
782 if (IS_ERR(dir_page))
785 type_page = getname(type);
786 ret = PTR_ERR(type_page);
787 if (IS_ERR(type_page))
790 if (strcmp(type_page, "ext2") == 0) {
791 dev_fname = getname(data);
792 } else if (strcmp(type_page, "iso9660") == 0) {
793 dev_fname = getname(data);
794 } else if (strcmp(type_page, "minix") == 0) {
795 dev_fname = getname(data);
796 } else if (strcmp(type_page, "nfs") == 0) {
797 ret = sunos_nfs_mount (dir_page, flags, data);
799 } else if (strcmp(type_page, "ufs") == 0) {
800 printk("Warning: UFS filesystem mounts unsupported.\n");
803 } else if (strcmp(type_page, "proc")) {
807 ret = PTR_ERR(dev_fname);
808 if (IS_ERR(dev_fname))
810 ret = do_mount(dev_fname, dir_page, type_page, linux_flags, NULL);
823 asmlinkage int sunos_setpgrp(pid_t pid, pid_t pgid)
828 if ((!pid || pid == current->pid) &&
833 ret = sys_setpgid(pid, pgid);
839 asmlinkage int sunos_wait4(pid_t pid, unsigned int __user *stat_addr,
840 int options, struct rusage __user*ru)
844 ret = sys_wait4((pid ? pid : -1), stat_addr, options, ru);
848 extern int kill_pg(int, int, int);
849 asmlinkage int sunos_killpg(int pgrp, int sig)
854 ret = kill_pg(pgrp, sig, 0);
859 asmlinkage int sunos_audit(void)
862 printk ("sys_audit\n");
867 asmlinkage unsigned long sunos_gethostid(void)
872 ret = ((unsigned long)idprom->id_machtype << 24) |
873 (unsigned long)idprom->id_sernum;
878 /* sysconf options, for SunOS compatibility */
879 #define _SC_ARG_MAX 1
880 #define _SC_CHILD_MAX 2
881 #define _SC_CLK_TCK 3
882 #define _SC_NGROUPS_MAX 4
883 #define _SC_OPEN_MAX 5
884 #define _SC_JOB_CONTROL 6
885 #define _SC_SAVED_IDS 7
886 #define _SC_VERSION 8
888 asmlinkage long sunos_sysconf (int name)
902 case _SC_NGROUPS_MAX:
908 case _SC_JOB_CONTROL:
909 ret = 1; /* yes, we do support job control */
912 ret = 1; /* yes, we do support saved uids */
915 /* mhm, POSIX_VERSION is in /usr/include/unistd.h
916 * should it go on /usr/include/linux?
927 asmlinkage int sunos_semsys(int op, unsigned long arg1, unsigned long arg2,
928 unsigned long arg3, void *ptr)
935 /* Most arguments match on a 1:1 basis but cmd doesn't */
953 /* value to modify semaphore to */
954 arg4.__pad = (void __user *) ptr;
955 ret = sys_semctl((int)arg1, (int)arg2, (int)arg3, arg4 );
959 ret = sys_semget((key_t)arg1, (int)arg2, (int)arg3);
963 ret = sys_semop((int)arg1, (struct sembuf __user *)arg2, (unsigned)arg3);
972 asmlinkage int sunos_msgsys(int op, unsigned long arg1, unsigned long arg2,
973 unsigned long arg3, unsigned long arg4)
975 struct sparc_stackf *sp;
981 rval = sys_msgget((key_t)arg1, (int)arg2);
984 rval = sys_msgctl((int)arg1, (int)arg2,
985 (struct msqid_ds __user *)arg3);
989 sp = (struct sparc_stackf *)current->thread.kregs->u_regs[UREG_FP];
990 arg5 = sp->xxargs[0];
992 rval = sys_msgrcv((int)arg1, (struct msgbuf __user *)arg2,
993 (size_t)arg3, (long)arg4, (int)arg5);
996 rval = sys_msgsnd((int)arg1, (struct msgbuf __user *)arg2,
997 (size_t)arg3, (int)arg4);
1006 asmlinkage int sunos_shmsys(int op, unsigned long arg1, unsigned long arg2,
1009 unsigned long raddr;
1014 /* do_shmat(): attach a shared memory area */
1015 rval = do_shmat((int)arg1,(char __user *)arg2,(int)arg3,&raddr);
1020 /* sys_shmctl(): modify shared memory area attr. */
1021 rval = sys_shmctl((int)arg1,(int)arg2,(struct shmid_ds __user *)arg3);
1024 /* sys_shmdt(): detach a shared memory area */
1025 rval = sys_shmdt((char __user *)arg1);
1028 /* sys_shmget(): get a shared memory area */
1029 rval = sys_shmget((key_t)arg1,(int)arg2,(int)arg3);
1038 #define SUNOS_EWOULDBLOCK 35
1040 /* see the sunos man page read(2v) for an explanation
1041 of this garbage. We use O_NDELAY to mark
1042 file descriptors that have been set non-blocking
1043 using 4.2BSD style calls. (tridge) */
1045 static inline int check_nonblock(int ret, int fd)
1047 if (ret == -EAGAIN) {
1048 struct file * file = fget(fd);
1050 if (file->f_flags & O_NDELAY)
1051 ret = -SUNOS_EWOULDBLOCK;
1058 asmlinkage int sunos_read(unsigned int fd, char __user *buf, int count)
1062 ret = check_nonblock(sys_read(fd,buf,count),fd);
1066 asmlinkage int sunos_readv(unsigned long fd, const struct iovec __user *vector,
1071 ret = check_nonblock(sys_readv(fd,vector,count),fd);
1075 asmlinkage int sunos_write(unsigned int fd, char __user *buf, int count)
1079 ret = check_nonblock(sys_write(fd,buf,count),fd);
1083 asmlinkage int sunos_writev(unsigned long fd,
1084 const struct iovec __user *vector, long count)
1088 ret = check_nonblock(sys_writev(fd,vector,count),fd);
1092 asmlinkage int sunos_recv(int fd, void __user *ubuf, int size, unsigned flags)
1096 ret = check_nonblock(sys_recv(fd,ubuf,size,flags),fd);
1100 asmlinkage int sunos_send(int fd, void __user *buff, int len, unsigned flags)
1104 ret = check_nonblock(sys_send(fd,buff,len,flags),fd);
1108 asmlinkage int sunos_accept(int fd, struct sockaddr __user *sa,
1109 int __user *addrlen)
1114 ret = check_nonblock(sys_accept(fd,sa,addrlen),fd);
1115 if (ret != -ENETUNREACH && ret != -EHOSTUNREACH)
1122 #define SUNOS_SV_INTERRUPT 2
1125 sunos_sigaction(int sig, const struct old_sigaction __user *act,
1126 struct old_sigaction __user *oact)
1128 struct k_sigaction new_ka, old_ka;
1134 if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
1135 __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
1136 __get_user(new_ka.sa.sa_flags, &act->sa_flags))
1138 __get_user(mask, &act->sa_mask);
1139 new_ka.sa.sa_restorer = NULL;
1140 new_ka.ka_restorer = NULL;
1141 siginitset(&new_ka.sa.sa_mask, mask);
1142 new_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
1145 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
1148 /* In the clone() case we could copy half consistent
1149 * state to the user, however this could sleep and
1150 * deadlock us if we held the signal lock on SMP. So for
1151 * now I take the easy way out and do no locking.
1152 * But then again we don't support SunOS lwp's anyways ;-)
1154 old_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
1155 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
1156 __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
1157 __put_user(old_ka.sa.sa_flags, &oact->sa_flags))
1159 __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
1166 asmlinkage int sunos_setsockopt(int fd, int level, int optname,
1167 char __user *optval, int optlen)
1169 int tr_opt = optname;
1172 if (level == SOL_IP) {
1173 /* Multicast socketopts (ttl, membership) */
1174 if (tr_opt >=2 && tr_opt <= 6)
1177 ret = sys_setsockopt(fd, level, tr_opt, optval, optlen);
1181 asmlinkage int sunos_getsockopt(int fd, int level, int optname,
1182 char __user *optval, int __user *optlen)
1184 int tr_opt = optname;
1187 if (level == SOL_IP) {
1188 /* Multicast socketopts (ttl, membership) */
1189 if (tr_opt >=2 && tr_opt <= 6)
1192 ret = sys_getsockopt(fd, level, tr_opt, optval, optlen);