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
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#include <curl/curl.h>
#include "netrc.h"
#include "strequal.h"
#include "strtok.h"
#include "rawstr.h"
#include "curl_printf.h"
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
/* Get user and password from .netrc when given a machine name */
enum host_lookup_state {
NOTHING,
HOSTFOUND, /* the 'machine' keyword was found */
HOSTVALID /* this is "our" machine! */
};
/*
* @unittest: 1304
*
* *loginp and *passwordp MUST be allocated if they aren't NULL when passed
* in.
*/
CURL_STATIC int Curl_parsenetrc(const char *host,
char **loginp,
char **passwordp,
char *netrcfile)
{
FILE *file;
int retcode=1;
int specific_login = (*loginp && **loginp != 0);
bool netrc_alloc = FALSE;
enum host_lookup_state state=NOTHING;
char state_login=0; /* Found a login keyword */
char state_password=0; /* Found a password keyword */
int state_our_login=FALSE; /* With specific_login, found *our* login name */
#define NETRC DOT_CHAR "netrc"
if(!netrcfile) {
bool home_alloc = FALSE;
char *home = curl_getenv("HOME"); /* portable environment reader */
if(home) {
home_alloc = TRUE;
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
}
else {
struct passwd pw, *pw_res;
char pwbuf[1024];
if(!getpwuid_r(geteuid(), &pw, pwbuf, sizeof(pwbuf), &pw_res)
&& pw_res) {
home = strdup(pw.pw_dir);
if(!home)
return CURLE_OUT_OF_MEMORY;
home_alloc = TRUE;
}
#elif defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
}
else {
struct passwd *pw;
pw= getpwuid(geteuid());
if(pw) {
home = pw->pw_dir;
}
#endif
}
if(!home)
return retcode; /* no home directory found (or possibly out of memory) */
netrcfile = curl_maprintf("%s%s%s", home, DIR_CHAR, NETRC);
if(home_alloc)
free(home);
if(!netrcfile) {
return -1;
}
netrc_alloc = TRUE;
}
file = fopen(netrcfile, "r");
if(netrc_alloc)
free(netrcfile);
if(file) {
char *tok;
char *tok_buf;
bool done=FALSE;
char netrcbuffer[256];
int netrcbuffsize = (int)sizeof(netrcbuffer);
while(!done && fgets(netrcbuffer, netrcbuffsize, file)) {
tok=strtok_r(netrcbuffer, " \t\n", &tok_buf);
while(!done && tok) {
if((*loginp && **loginp) && (*passwordp && **passwordp)) {
done=TRUE;
break;
}
switch(state) {
case NOTHING:
if(Curl_raw_equal("machine", tok)) {
/* the next tok is the machine name, this is in itself the
delimiter that starts the stuff entered for this machine,
after this we need to search for 'login' and
'password'. */
state=HOSTFOUND;
}
break;
case HOSTFOUND:
if(Curl_raw_equal(host, tok)) {
/* and yes, this is our host! */
state=HOSTVALID;
retcode=0; /* we did find our host */
}
else
/* not our host */
state=NOTHING;
break;
case HOSTVALID:
/* we are now parsing sub-keywords concerning "our" host */
if(state_login) {
if(specific_login) {
state_our_login = Curl_raw_equal(*loginp, tok);
}
else {
free(*loginp);
*loginp = strdup(tok);
if(!*loginp) {
retcode = -1; /* allocation failed */
goto out;
}
}
state_login=0;
}
else if(state_password) {
if(state_our_login || !specific_login) {
free(*passwordp);
*passwordp = strdup(tok);
if(!*passwordp) {
retcode = -1; /* allocation failed */
goto out;
}
}
state_password=0;
}
else if(Curl_raw_equal("login", tok))
state_login=1;
else if(Curl_raw_equal("password", tok))
state_password=1;
else if(Curl_raw_equal("machine", tok)) {
/* ok, there's machine here go => */
state = HOSTFOUND;
state_our_login = FALSE;
}
break;
} /* switch (state) */
tok = strtok_r(NULL, " \t\n", &tok_buf);
} /* while(tok) */
} /* while fgets() */
out:
fclose(file);
}
return retcode;
}
|
