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
|
/*-------------------------------------------------------------------------
*
* filename.c--
*
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/Attic/filename.c,v 1.15 1998/06/15 19:29:34 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include <string.h>
#include <stdio.h>
#include <pwd.h>
#include <sys/param.h>
#include "postgres.h"
#include <miscadmin.h>
#include "utils/builtins.h" /* where function declarations go */
char *
filename_in(char *file)
{
char *str;
int ind = 0;
/*
* XXX - HACK CITY --- REDO should let the shell do expansions
* (shexpand)
*/
str = (char *) palloc(MAXPATHLEN * sizeof(*str));
str[0] = '\0';
if (file[0] == '~')
{
if (file[1] == '\0' || file[1] == '/')
{
/* Home directory */
char *userName;
struct passwd *pw;
userName = GetPgUserName();
if ((pw = getpwnam(userName)) == NULL)
{
elog(ERROR, "User %s is not a Unix user on the db server.",
userName);
}
strcpy(str, pw->pw_dir);
ind = 1;
}
else
{
/* Someone else's directory */
char name[17],
*p;
struct passwd *pw;
int len;
if ((p = (char *) strchr(file, '/')) == NULL)
{
strcpy(name, file + 1);
len = strlen(name);
}
else
{
len = (p - file) - 1;
StrNCpy(name, file + 1, len + 1);
}
/* printf("name: %s\n"); */
if ((pw = getpwnam(name)) == NULL)
{
elog(ERROR, "No such user: %s\n", name);
ind = 0;
}
else
{
strcpy(str, pw->pw_dir);
ind = len + 1;
}
}
}
else if (file[0] == '$')
{ /* $POSTGRESHOME, etc. expand it. */
char environment[80],
*envirp,
*p;
int len;
if ((p = (char *) strchr(file, '/')) == NULL)
{
strcpy(environment, file + 1);
len = strlen(environment);
}
else
{
len = (p - file) - 1;
StrNCpy(environment, file + 1, len + 1);
}
envirp = getenv(environment);
if (envirp)
{
strcpy(str, envirp);
ind = len + 1;
}
else
elog(ERROR, "Couldn't find %s in your environment", environment);
}
else
ind = 0;
strcat(str, file + ind);
return (str);
}
char *
filename_out(char *s)
{
char *ret;
if (!s)
return ((char *) NULL);
ret = (char *) palloc(strlen(s) + 1);
if (!ret)
elog(ERROR, "filename_out: palloc failed");
return (strcpy(ret, s));
}
|
