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
|
/* Copyright (C) 2000 MySQL AB
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; version 2 of the License.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
/* Gets current working directory in buff.
SYNPOSIS
my_getwd()
buf Buffer to store result. Can be curr_dir[].
size Size of buffer
MyFlags Flags
NOTES
Directory is allways ended with FN_LIBCHAR
RESULT
0 ok
# error
*/
int my_getwd(char * buf, size_t size, myf MyFlags)
{
char * pos;
DBUG_ENTER("my_getwd");
DBUG_PRINT("my",("buf: 0x%lx size: %u MyFlags %d",
(long) buf, (uint) size, MyFlags));
if (curr_dir[0]) /* Current pos is saved here */
VOID(strmake(buf,&curr_dir[0],size-1));
else
{
#if defined(HAVE_GETCWD)
if (!getcwd(buf,size-2) && MyFlags & MY_WME)
{
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_t) (FN_REFLEN-1));
}
DBUG_RETURN(0);
} /* my_getwd */
/* Set new working directory */
int my_setwd(const char *dir, myf MyFlags)
{
int res;
size_t length;
char *start, *pos;
#if defined(VMS)
char buff[FN_REFLEN];
#endif
DBUG_ENTER("my_setwd");
DBUG_PRINT("my",("dir: '%s' MyFlags %d", dir, MyFlags));
start=(char *) dir;
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 */
if ((res=chdir((char*) dir)) != 0)
{
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_t) 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 */
/*
Test if a name contains an (absolute or relative) path.
SYNOPSIS
has_path()
name The name to test.
RETURN
TRUE name contains a path.
FALSE name does not contain a path.
*/
my_bool has_path(const char *name)
{
return test(strchr(name, FN_LIBCHAR))
#if FN_LIBCHAR != '/'
|| test(strchr(name,'/'))
#endif
#ifdef FN_DEVCHAR
|| test(strchr(name, FN_DEVCHAR))
#endif
;
}
|