diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/compat/ibcs2/ibcs2_fcntl.c | 58 | ||||
| -rw-r--r-- | sys/compat/svr4/svr4_fcntl.c | 3 |
2 files changed, 59 insertions, 2 deletions
diff --git a/sys/compat/ibcs2/ibcs2_fcntl.c b/sys/compat/ibcs2/ibcs2_fcntl.c index 1c0314522b3..670320e6ab7 100644 --- a/sys/compat/ibcs2/ibcs2_fcntl.c +++ b/sys/compat/ibcs2/ibcs2_fcntl.c @@ -1,7 +1,8 @@ -/* $OpenBSD: ibcs2_fcntl.c,v 1.4 1996/08/02 20:35:05 niklas Exp $ */ +/* $OpenBSD: ibcs2_fcntl.c,v 1.5 1997/12/20 16:32:10 deraadt Exp $ */ /* $NetBSD: ibcs2_fcntl.c,v 1.6 1996/05/03 17:05:20 christos Exp $ */ /* + * Copyright (c) 1997 Theo de Raadt * Copyright (c) 1995 Scott Bartram * All rights reserved. * @@ -368,6 +369,61 @@ ibcs2_sys_fcntl(p, v, retval) SCARG(&fa, arg) = (void *)flp; return sys_fcntl(p, &fa, retval); } + case IBCS2_F_FREESP: + { + struct ibcs2_flock ifl; + off_t off, cur; + caddr_t sg = stackgap_init(p->p_emul); + struct sys_fstat_args ofst; + struct stat ost; + struct sys_lseek_args ols; + struct sys_ftruncate_args /* { + syscallarg(int) fd; + syscallarg(int) pad; + syscallarg(off_t) length; + } */ nuap; + + error = copyin(SCARG(uap, arg), &ifl, sizeof ifl); + if (error) + return error; + + SCARG(&ofst, fd) = SCARG(uap, fd); + SCARG(&ofst, sb) = stackgap_alloc(&sg, + sizeof(struct stat)); + if ((error = sys_fstat(p, &ofst, retval)) != 0) + return error; + if ((error = copyin(SCARG(&ofst, sb), &ost, + sizeof ost)) != 0) + return error; + + SCARG(&ols, fd) = SCARG(uap, fd); + SCARG(&ols, whence) = SEEK_CUR; + SCARG(&ols, offset) = 0; + if ((error = sys_lseek(p, &ols, (register_t *)&cur)) != 0) + return error; + + off = (off_t)ifl.l_start; + switch (ifl.l_whence) { + case 0: + off = (off_t)ifl.l_start; + break; + case 1: + off = ost.st_size + (off_t)ifl.l_start; + break; + case 2: + off = cur - (off_t)ifl.l_start; + break; + default: + return EINVAL; + } + + if (ifl.l_len != 0 && off + ifl.l_len != ost.st_size) + return EINVAL; /* Sorry, cannot truncate in middle */ + + SCARG(&nuap, fd) = SCARG(uap, fd); + SCARG(&nuap, length) = off; + return (sys_ftruncate(p, &nuap, retval)); + } } return ENOSYS; } diff --git a/sys/compat/svr4/svr4_fcntl.c b/sys/compat/svr4/svr4_fcntl.c index 355f6ccac8e..3772b9f5c0e 100644 --- a/sys/compat/svr4/svr4_fcntl.c +++ b/sys/compat/svr4/svr4_fcntl.c @@ -1,7 +1,8 @@ -/* $OpenBSD: svr4_fcntl.c,v 1.12 1997/12/17 07:25:51 deraadt Exp $ */ +/* $OpenBSD: svr4_fcntl.c,v 1.13 1997/12/20 16:32:08 deraadt Exp $ */ /* $NetBSD: svr4_fcntl.c,v 1.14 1995/10/14 20:24:24 christos Exp $ */ /* + * Copyright (c) 1997 Theo de Raadt * Copyright (c) 1994 Christos Zoulas * All rights reserved. * |