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
|
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02111-1301, USA */
/* my_setwd() and my_getwd() works with intern_filenames !! */
#include "mysys_priv.h"
#include <m_string.h>
#include "mysys_err.h"
#ifdef HAVE_GETWD
#include <sys/param.h>
#endif
#if defined(MSDOS) || defined(_WIN32)
#include <m_ctype.h>
#include <dos.h>
#include <direct.h>
#endif
#if defined(OS2)
#include <direct.h>
#endif
#ifdef __EMX__
// chdir2 support also drive change
#define chdir _chdir2
#endif
/* Gets current working directory in buff. Directory is allways ended
with FN_LIBCHAR */
/* One must pass a buffer to my_getwd. One can allways use
curr_dir[] */
int my_getwd(my_string buf, uint size, myf MyFlags)
{
my_string pos;
DBUG_ENTER("my_getwd");
DBUG_PRINT("my",("buf: %lx size: %d MyFlags %d", buf,size,MyFlags));
#if ! defined(MSDOS)
if (curr_dir[0]) /* Current pos is saved here */
VOID(strmake(buf,&curr_dir[0],size-1));
else
#endif
{
#if defined(HAVE_GETCWD)
#ifdef _WIN32
if (!(_getcwd(buf,size-2)) && MyFlags & MY_WME)
#else
if (!(getcwd(buf,size-2)) && MyFlags & MY_WME)
#endif
{
my_errno=errno;
my_error(EE_GETWD,MYF(ME_BELL+ME_WAITTANG),errno);
return(-1);
}
#elif defined(HAVE_GETWD)
{
char pathname[MAXPATHLEN];
getwd(pathname);
strmake(buf,pathname,size-1);
}
#elif defined(VMS)
if (!getcwd(buf,size-2,1) && MyFlags & MY_WME)
{
my_errno=errno;
my_error(EE_GETWD,MYF(ME_BELL+ME_WAITTANG),errno);
return(-1);
}
intern_filename(buf,buf);
#else
#error "No way to get current directory"
#endif
if (*((pos=strend(buf))-1) != FN_LIBCHAR) /* End with FN_LIBCHAR */
{
pos[0]= FN_LIBCHAR;
pos[1]=0;
}
(void) strmake(&curr_dir[0],buf,(size_s) (FN_REFLEN-1));
}
DBUG_RETURN(0);
} /* my_getwd */
/* Set new working directory */
int my_setwd(const char *dir, myf MyFlags)
{
int res;
size_s length;
my_string start,pos;
#if defined(VMS) || defined(MSDOS) || defined(OS2)
char buff[FN_REFLEN];
#endif
DBUG_ENTER("my_setwd");
DBUG_PRINT("my",("dir: '%s' MyFlags %d", dir, MyFlags));
start=(my_string) dir;
#if defined(MSDOS) || defined(OS2) /* OS2/MSDOS chdir can't change drive */
#if !defined(_DDL) && !defined(WIN32)
if ((pos=(char*) strchr(dir,FN_DEVCHAR)) != 0)
{
uint drive,drives;
pos++; /* Skipp FN_DEVCHAR */
drive=(uint) (toupper(dir[0])-'A'+1); drives= (uint) -1;
if ((pos-(byte*) dir) == 2 && drive > 0 && drive < 32)
{
#ifdef OS2
_chdrive(drive);
drives = _getdrive();
#else
_dos_setdrive(drive,&drives);
_dos_getdrive(&drives);
#endif
}
if (drive != drives)
{
*pos='\0'; /* Dir is now only drive */
my_errno=errno;
my_error(EE_SETWD,MYF(ME_BELL+ME_WAITTANG),dir,ENOENT);
DBUG_RETURN(-1);
}
dir=pos; /* drive changed, change now path */
}
#endif
if (*((pos=strend(dir)-1)) == FN_LIBCHAR && pos != dir)
{
strmov(buff,dir)[-1]=0; /* Remove last '/' */
dir=buff;
}
#endif /* MSDOS*/
if (! dir[0] || (dir[0] == FN_LIBCHAR && dir[1] == 0))
dir=FN_ROOTDIR;
#ifdef VMS
{
pos=strmov(buff,dir);
if (pos[-1] != FN_LIBCHAR)
{
pos[0]=FN_LIBCHAR; /* Mark as directory */
pos[1]=0;
}
system_filename(buff,buff); /* Change to VMS format */
dir=buff;
}
#endif /* VMS */
#ifdef _WIN32
if ((res=_chdir((char*) dir)) != 0)
#else
if ((res=chdir((char*) dir)) != 0)
#endif
{
my_errno=errno;
if (MyFlags & MY_WME)
my_error(EE_SETWD,MYF(ME_BELL+ME_WAITTANG),start,errno);
}
else
{
if (test_if_hard_path(start))
{ /* Hard pathname */
pos=strmake(&curr_dir[0],start,(size_s) FN_REFLEN-1);
if (pos[-1] != FN_LIBCHAR)
{
length=(uint) (pos-(char*) curr_dir);
curr_dir[length]=FN_LIBCHAR; /* must end with '/' */
curr_dir[length+1]='\0';
}
}
else
curr_dir[0]='\0'; /* Don't save name */
}
DBUG_RETURN(res);
} /* my_setwd */
/* Test if hard pathname */
/* Returns 1 if dirname is a hard path */
int test_if_hard_path(register const char *dir_name)
{
if (dir_name[0] == FN_HOMELIB && dir_name[1] == FN_LIBCHAR)
return (home_dir != NullS && test_if_hard_path(home_dir));
if (dir_name[0] == FN_LIBCHAR)
return (TRUE);
#ifdef FN_DEVCHAR
return (strchr(dir_name,FN_DEVCHAR) != 0);
#else
return FALSE;
#endif
} /* test_if_hard_path */
|
