2 Unix SMB/Netbios implementation.
5 Copyright (C) Andrew Tridgell 1992-1995
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 extern int DEBUGLEVEL
;
27 The idea is that this file will eventually have wrappers around all
28 important system calls in samba. The aims are:
30 - to enable easier porting by putting OS dependent stuff in here
32 - to allow for hooks into other "pseudo-filesystems"
34 - to allow easier integration of things like the japanese extensions
36 - to support the philosophy of Samba to expose the features of
37 the OS within the SMB model. In general whatever file/printer/variable
38 expansions/etc make sense to the OS should be acceptable to Samba.
42 /*******************************************************************
43 this replaces the normal select() system call
44 return if some data has arrived on one of the file descriptors
46 ********************************************************************/
48 static int pollfd(int fd
)
54 #elif defined(TCRDCHK)
55 (void)ioctl(fd
, TCRDCHK
, &r
);
57 (void)ioctl(fd
, FIONREAD
, &r
);
63 int sys_select(fd_set
*fds
,struct timeval
*tval
)
75 if (FD_ISSET(i
,fds
) && pollfd(i
)>0) {
82 memcpy((void *)fds
,(void *)&fds2
,sizeof(fds2
));
86 if (tval
&& tval
->tv_sec
< counter
) return(0);
93 int sys_select(fd_set
*fds
,struct timeval
*tval
)
99 if (tval
) memcpy((void *)&t2
,(void *)tval
,sizeof(t2
));
101 selrtn
= select(255,SELECT_CAST fds
,NULL
,NULL
,tval
?&t2
:NULL
);
102 } while (selrtn
<0 && errno
== EINTR
);
109 /*******************************************************************
110 just a unlink wrapper
111 ********************************************************************/
112 int sys_unlink(char *fname
)
114 return(unlink(dos_to_unix(fname
,False
)));
118 /*******************************************************************
119 a simple open() wrapper
120 ********************************************************************/
121 int sys_open(char *fname
,int flags
,int mode
)
123 return(open(dos_to_unix(fname
,False
),flags
,mode
));
127 /*******************************************************************
128 a simple opendir() wrapper
129 ********************************************************************/
130 DIR *sys_opendir(char *dname
)
132 return(opendir(dos_to_unix(dname
,False
)));
136 /*******************************************************************
138 ********************************************************************/
139 int sys_stat(char *fname
,struct stat
*sbuf
)
141 return(stat(dos_to_unix(fname
,False
),sbuf
));
144 /*******************************************************************
145 The wait() calls vary between systems
146 ********************************************************************/
147 int sys_waitpid(pid_t pid
,int *status
,int options
)
150 return waitpid(pid
,status
,options
);
151 #else /* USE_WAITPID */
152 return wait4(pid
, status
, options
, NULL
);
153 #endif /* USE_WAITPID */
156 /*******************************************************************
158 ********************************************************************/
159 int sys_lstat(char *fname
,struct stat
*sbuf
)
161 return(lstat(dos_to_unix(fname
,False
),sbuf
));
165 /*******************************************************************
166 mkdir() gets a wrapper
167 ********************************************************************/
168 int sys_mkdir(char *dname
,int mode
)
170 return(mkdir(dos_to_unix(dname
,False
),mode
));
174 /*******************************************************************
176 ********************************************************************/
177 int sys_rmdir(char *dname
)
179 return(rmdir(dos_to_unix(dname
,False
)));
183 /*******************************************************************
184 I almost forgot chdir()
185 ********************************************************************/
186 int sys_chdir(char *dname
)
188 return(chdir(dos_to_unix(dname
,False
)));
192 /*******************************************************************
194 ********************************************************************/
195 int sys_utime(char *fname
,struct utimbuf
*times
)
197 return(utime(dos_to_unix(fname
,False
),times
));
200 /*******************************************************************
202 ********************************************************************/
203 int sys_rename(char *from
, char *to
)
206 strcpy (zfrom
, dos_to_unix (from
, False
));
207 strcpy (zto
, dos_to_unix (to
, False
));
208 return rename (zfrom
, zto
);
211 /*******************************************************************
213 ********************************************************************/
214 int sys_chmod(char *fname
,int mode
)
216 return(chmod(dos_to_unix(fname
,False
),mode
));
219 /*******************************************************************
220 chown isn't used much but OS/2 doesn't have it
221 ********************************************************************/
222 int sys_chown(char *fname
,int uid
,int gid
)
225 DEBUG(1,("Warning - chown(%s,%d,%d) not done\n",fname
,uid
,gid
));
227 return(chown(fname
,uid
,gid
));
231 /*******************************************************************
232 os/2 also doesn't have chroot
233 ********************************************************************/
234 int sys_chroot(char *dname
)
237 DEBUG(1,("Warning - chroot(%s) not done\n",dname
));
239 return(chroot(dname
));
243 /**************************************************************************
244 A wrapper for gethostbyname() that tries avoids looking up hostnames
245 in the root domain, which can cause dial-on-demand links to come up for no
247 ****************************************************************************/
248 struct hostent
*sys_gethostbyname(char *name
)
250 char query
[256], hostname
[256];
253 /* Does this name have any dots in it? If so, make no change */
255 if (strchr(name
, '.'))
256 return(gethostbyname(name
));
258 /* Get my hostname, which should have domain name
259 attached. If not, just do the gethostname on the
263 gethostname(hostname
, sizeof(hostname
) - 1);
264 hostname
[sizeof(hostname
) - 1] = 0;
265 if ((domain
= strchr(hostname
, '.')) == NULL
)
266 return(gethostbyname(name
));
268 /* Attach domain name to query and do modified query.
269 If names too large, just do gethostname on the
273 if((strlen(name
) + strlen(domain
)) >= sizeof(query
))
274 return(gethostbyname(name
));
276 sprintf(query
, "%s%s", name
, domain
);
277 return(gethostbyname(query
));