2 * 43BSD_FILE.C - 4.3BSD compatibility file syscalls
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
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21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
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40 * $DragonFly: src/sys/emulation/43bsd/43bsd_file.c,v 1.11 2006/09/05 00:55:44 dillon Exp $
41 * from: DragonFly kern/vfs_syscalls.c,v 1.20
43 * These syscalls used to live in kern/vfs_syscalls.c. They are modified
44 * to use the new split syscalls.
47 #include "opt_compat.h"
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/sysproto.h>
53 #include <sys/dirent.h>
54 #include <sys/fcntl.h>
56 #include <sys/filedesc.h>
57 #include <sys/kernel.h>
58 #include <sys/kern_syscall.h>
59 #include <sys/malloc.h>
60 #include <sys/mount.h>
62 #include <sys/namei.h>
63 #include <sys/nlookup.h>
64 #include <sys/vnode.h>
66 #include <vfs/union/union.h>
69 sys_ocreat(struct ocreat_args *uap)
71 struct nlookupdata nd;
74 error = nlookup_init(&nd, uap->path, UIO_USERSPACE, NLC_FOLLOW);
76 error = kern_open(&nd, O_WRONLY | O_CREAT | O_TRUNC,
77 uap->mode, &uap->sysmsg_result);
83 sys_oftruncate(struct oftruncate_args *uap)
87 error = kern_ftruncate(uap->fd, uap->length);
93 sys_olseek(struct olseek_args *uap)
97 error = kern_lseek(uap->fd, uap->offset, uap->whence,
104 sys_otruncate(struct otruncate_args *uap)
106 struct nlookupdata nd;
109 error = nlookup_init(&nd, uap->path, UIO_USERSPACE, NLC_FOLLOW);
111 error = kern_truncate(&nd, uap->length);
116 #define PADDED_SIZE(x) \
117 ((sizeof(struct odirent) + (x) + 1 + 3) & ~3)
118 #define MAX_NAMELEN 255
129 sys_ogetdirentries(struct ogetdirentries_args *uap)
131 int error, bytes_transfered;
135 struct odirent *destdp;
138 if (uap->count > 16384)
143 buf = kmalloc(len, M_TEMP, M_WAITOK);
145 error = kern_getdirentries(uap->fd, buf, len,
146 &base, &bytes_transfered, UIO_SYSSPACE);
153 ndp = (struct dirent *)buf;
155 destdp = kmalloc(PADDED_SIZE(MAX_NAMELEN), M_TEMP, M_WAITOK);
157 for (; (char *)ndp < buf + bytes_transfered; ndp = _DIRENT_NEXT(ndp)) {
158 if ((char *)_DIRENT_NEXT(ndp) > buf + bytes_transfered)
160 if (ndp->d_namlen > MAX_NAMELEN)
162 destdp->od_fileno = ndp->d_ino;
163 #if BYTE_ORDER == LITTLE_ENDIAN
164 destdp->od_type = ndp->d_namlen;
165 destdp->od_namlen = ndp->d_type;
167 destdp->od_type = ndp->d_type;
168 destdp->od_namlen = ndp->d_namlen;
170 destdp->od_reclen = PADDED_SIZE(destdp->od_namlen);
171 if (destdp->od_reclen > len)
172 break; /* XXX can not happen */
173 bcopy(ndp->d_name, destdp->od_name, destdp->od_namlen);
174 bzero(destdp->od_name + destdp->od_namlen,
175 PADDED_SIZE(destdp->od_namlen) - sizeof(*destdp) -
177 error = copyout(destdp, outbuf,
178 PADDED_SIZE(destdp->od_namlen));
181 outbuf += PADDED_SIZE(destdp->od_namlen);
182 len -= PADDED_SIZE(destdp->od_namlen);
185 kfree(destdp, M_TEMP);
187 uap->sysmsg_result = outbuf - uap->buf;