1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
Unix SMB/Netbios implementation.
Version 1.9.
Samba system utilities
Copyright (C) Andrew Tridgell 1992-1995
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
extern int DEBUGLEVEL;
/*
The idea is that this file will eventually have wrappers around all
important system calls in samba. The aims are:
- to enable easier porting by putting OS dependent stuff in here
- to allow for hooks into other "pseudo-filesystems"
- to allow easier integration of things like the japanese extensions
- to support the philosophy of Samba to expose the features of
the OS within the SMB model. In general whatever file/printer/variable
expansions/etc make sense to the OS should be acceptable to Samba.
*/
/*******************************************************************
this replaces the normal select() system call
return if some data has arrived on one of the file descriptors
return -1 means error
********************************************************************/
#ifdef NO_SELECT
static int pollfd(int fd)
{
int r=0;
#ifdef HAS_RDCHK
r = rdchk(fd);
#elif defined(TCRDCHK)
(void)ioctl(fd, TCRDCHK, &r);
#else
(void)ioctl(fd, FIONREAD, &r);
#endif
return(r);
}
int sys_select(fd_set *fds,struct timeval *tval)
{
fd_set fds2;
int counter=0;
int found=0;
FD_ZERO(&fds2);
while (1)
{
int i;
for (i=0;i<255;i++) {
if (FD_ISSET(i,fds) && pollfd(i)>0) {
found++;
FD_SET(i,&fds2);
}
}
if (found) {
memcpy((void *)fds,(void *)&fds2,sizeof(fds2));
return(found);
}
if (tval && tval->tv_sec < counter) return(0);
sleep(1);
counter++;
}
}
#else
int sys_select(fd_set *fds,struct timeval *tval)
{
struct timeval t2;
int selrtn;
do {
if (tval) memcpy((void *)&t2,(void *)tval,sizeof(t2));
errno = 0;
selrtn = select(255,SELECT_CAST fds,NULL,NULL,tval?&t2:NULL);
} while (selrtn<0 && errno == EINTR);
return(selrtn);
}
#endif
/*******************************************************************
just a unlink wrapper
********************************************************************/
int sys_unlink(char *fname)
{
return(unlink(dos_to_unix(fname,False)));
}
/*******************************************************************
a simple open() wrapper
********************************************************************/
int sys_open(char *fname,int flags,int mode)
{
return(open(dos_to_unix(fname,False),flags,mode));
}
/*******************************************************************
a simple opendir() wrapper
********************************************************************/
DIR *sys_opendir(char *dname)
{
return(opendir(dos_to_unix(dname,False)));
}
/*******************************************************************
and a stat() wrapper
********************************************************************/
int sys_stat(char *fname,struct stat *sbuf)
{
return(stat(dos_to_unix(fname,False),sbuf));
}
/*******************************************************************
don't forget lstat()
********************************************************************/
int sys_lstat(char *fname,struct stat *sbuf)
{
return(lstat(dos_to_unix(fname,False),sbuf));
}
/*******************************************************************
mkdir() gets a wrapper
********************************************************************/
int sys_mkdir(char *dname,int mode)
{
return(mkdir(dos_to_unix(dname,False),mode));
}
/*******************************************************************
do does rmdir()
********************************************************************/
int sys_rmdir(char *dname)
{
return(rmdir(dos_to_unix(dname,False)));
}
/*******************************************************************
I almost forgot chdir()
********************************************************************/
int sys_chdir(char *dname)
{
return(chdir(dos_to_unix(dname,False)));
}
/*******************************************************************
now for utime()
********************************************************************/
int sys_utime(char *fname,struct utimbuf *times)
{
return(utime(dos_to_unix(fname,False),times));
}
/*******************************************************************
for rename()
********************************************************************/
int sys_rename(char *from, char *to)
{
#ifdef KANJI
pstring zfrom, zto;
strcpy (zfrom, dos_to_unix (from, False));
strcpy (zto, dos_to_unix (to, False));
return rename (zfrom, zto);
#else
return rename (from, to);
#endif /* KANJI */
}
/*******************************************************************
for chmod
********************************************************************/
int sys_chmod(char *fname,int mode)
{
return(chmod(dos_to_unix(fname,False),mode));
}
/*******************************************************************
chown isn't used much but OS/2 doesn't have it
********************************************************************/
int sys_chown(char *fname,int uid,int gid)
{
#ifdef NO_CHOWN
DEBUG(1,("Warning - chown(%s,%d,%d) not done\n",fname,uid,gid));
#else
return(chown(fname,uid,gid));
#endif
}
/*******************************************************************
os/2 also doesn't have chroot
********************************************************************/
int sys_chroot(char *dname)
{
#ifdef NO_CHROOT
DEBUG(1,("Warning - chroot(%s) not done\n",dname));
#else
return(chroot(dname));
#endif
}
|
