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
234
235
236
237
238
239
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2014, 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 "tool_setup.h"
#include <sys/stat.h>
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#define ENABLE_CURLX_PRINTF
/* use our own printf() functions */
#include "curlx.h"
#include "tool_cfgable.h"
#include "tool_convert.h"
#include "tool_msgs.h"
#include "tool_operate.h"
#include "tool_panykey.h"
#include "tool_vms.h"
#include "tool_main.h"
#include "tool_libinfo.h"
/*
* This is low-level hard-hacking memory leak tracking and similar. Using
* the library level code from this client-side is ugly, but we do this
* anyway for convenience.
*/
#include "memdebug.h" /* keep this as LAST include */
#ifdef __VMS
/*
* vms_show is a global variable, used in main() as parameter for
* function vms_special_exit() to allow proper curl tool exiting.
* Its value may be set in other tool_*.c source files thanks to
* forward declaration present in tool_vms.h
*/
int vms_show = 0;
#endif
/* if we build a static library for unit tests, there is no main() function */
#ifndef UNITTESTS
/*
* Ensure that file descriptors 0, 1 and 2 (stdin, stdout, stderr) are
* open before starting to run. Otherwise, the first three network
* sockets opened by curl could be used for input sources, downloaded data
* or error logs as they will effectively be stdin, stdout and/or stderr.
*/
static void main_checkfds(void)
{
#ifdef HAVE_PIPE
int fd[2] = { STDIN_FILENO, STDIN_FILENO };
while(fd[0] == STDIN_FILENO ||
fd[0] == STDOUT_FILENO ||
fd[0] == STDERR_FILENO ||
fd[1] == STDIN_FILENO ||
fd[1] == STDOUT_FILENO ||
fd[1] == STDERR_FILENO)
if(pipe(fd) < 0)
return; /* Out of handles. This isn't really a big problem now, but
will be when we try to create a socket later. */
close(fd[0]);
close(fd[1]);
#endif
}
#ifdef CURLDEBUG
static void memory_tracking_init(void)
{
char *env;
/* if CURL_MEMDEBUG is set, this starts memory tracking message logging */
env = curlx_getenv("CURL_MEMDEBUG");
if(env) {
/* use the value as file name */
char fname[CURL_MT_LOGFNAME_BUFSIZE];
if(strlen(env) >= CURL_MT_LOGFNAME_BUFSIZE)
env[CURL_MT_LOGFNAME_BUFSIZE-1] = '\0';
strcpy(fname, env);
curl_free(env);
curl_memdebug(fname);
/* this weird stuff here is to make curl_free() get called
before curl_memdebug() as otherwise memory tracking will
log a free() without an alloc! */
}
/* if CURL_MEMLIMIT is set, this enables fail-on-alloc-number-N feature */
env = curlx_getenv("CURL_MEMLIMIT");
if(env) {
char *endptr;
long num = strtol(env, &endptr, 10);
if((endptr != env) && (endptr == env + strlen(env)) && (num > 0))
curl_memlimit(num);
curl_free(env);
}
}
#else
# define memory_tracking_init() Curl_nop_stmt
#endif
/*
* This is the main global constructor for the app. Call this before
* _any_ libcurl usage. If this fails, *NO* libcurl functions may be
* used, or havoc may be the result.
*/
static CURLcode main_init(struct GlobalConfig *config)
{
CURLcode result = CURLE_OK;
#if defined(__DJGPP__) || defined(__GO32__)
/* stop stat() wasting time */
_djstat_flags |= _STAT_INODE | _STAT_EXEC_MAGIC | _STAT_DIRSIZE;
#endif
/* Initialise the global config */
config->showerror = -1; /* Will show errors */
/* Allocate the initial operate config */
config->first = config->last = malloc(sizeof(struct OperationConfig));
if(config->first) {
/* Perform the libcurl initialization */
result = curl_global_init(CURL_GLOBAL_DEFAULT);
if(!result) {
/* Get information about libcurl */
result = get_libcurl_info();
if(!result) {
/* Get a curl handle to use for all forthcoming curl transfers */
config->easy = curl_easy_init();
if(config->easy) {
/* Initialise the config */
config_init(config->first);
config->first->easy = config->easy;
}
else {
helpf(stderr, "error initializing curl easy handle\n");
result = CURLE_FAILED_INIT;
}
}
else
helpf(stderr, "error retrieving curl library information\n");
}
else
helpf(stderr, "error initializing curl library\n");
}
else {
helpf(stderr, "error initializing curl\n");
result = CURLE_FAILED_INIT;
}
return result;
}
/*
* This is the main global destructor for the app. Call this after
* _all_ libcurl usage is done.
*/
static void main_free(struct GlobalConfig *config)
{
/* Cleanup the easy handle */
curl_easy_cleanup(config->easy);
config->easy = NULL;
/* Main cleanup */
curl_global_cleanup();
convert_cleanup();
metalink_cleanup();
/* Free the config structures */
config_free(config->last);
config->first = NULL;
config->last = NULL;
}
/*
** curl tool main function.
*/
int main(int argc, char *argv[])
{
CURLcode result = CURLE_OK;
struct GlobalConfig global;
memset(&global, 0, sizeof(global));
main_checkfds();
#if defined(HAVE_SIGNAL) && defined(SIGPIPE)
(void)signal(SIGPIPE, SIG_IGN);
#endif
/* Initialize memory tracking */
memory_tracking_init();
/* Initialize the curl library - do not call any libcurl functions before
this point */
result = main_init(&global);
if(!result) {
/* Start our curl operation */
result = operate(&global, argc, argv);
#ifdef __SYMBIAN32__
if(global.showerror)
tool_pressanykey();
#endif
/* Perform the main cleanup */
main_free(&global);
}
#ifdef __NOVELL_LIBC__
if(getenv("_IN_NETWARE_BASH_") == NULL)
tool_pressanykey();
#endif
#ifdef __VMS
vms_special_exit(res, vms_show);
#else
return (int)result;
#endif
}
#endif /* ndef UNITTESTS */
|
