1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
21 ***************************************************************************/
22 #include "tool_setup.h"
35 #define ENABLE_CURLX_PRINTF
36 /* use our own printf() functions */
39 #include "tool_cfgable.h"
40 #include "tool_convert.h"
41 #include "tool_msgs.h"
42 #include "tool_operate.h"
43 #include "tool_panykey.h"
45 #include "tool_main.h"
46 #include "tool_libinfo.h"
49 * This is low-level hard-hacking memory leak tracking and similar. Using
50 * the library level code from this client-side is ugly, but we do this
51 * anyway for convenience.
53 #include "memdebug.h" /* keep this as LAST include */
57 * vms_show is a global variable, used in main() as parameter for
58 * function vms_special_exit() to allow proper curl tool exiting.
59 * Its value may be set in other tool_*.c source files thanks to
60 * forward declaration present in tool_vms.h
65 /* if we build a static library for unit tests, there is no main() function */
69 * Ensure that file descriptors 0, 1 and 2 (stdin, stdout, stderr) are
70 * open before starting to run. Otherwise, the first three network
71 * sockets opened by curl could be used for input sources, downloaded data
72 * or error logs as they will effectively be stdin, stdout and/or stderr.
74 static void main_checkfds(void)
77 int fd[2] = { STDIN_FILENO, STDIN_FILENO };
78 while(fd[0] == STDIN_FILENO ||
79 fd[0] == STDOUT_FILENO ||
80 fd[0] == STDERR_FILENO ||
81 fd[1] == STDIN_FILENO ||
82 fd[1] == STDOUT_FILENO ||
83 fd[1] == STDERR_FILENO)
85 return; /* Out of handles. This isn't really a big problem now, but
86 will be when we try to create a socket later. */
93 static void memory_tracking_init(void)
96 /* if CURL_MEMDEBUG is set, this starts memory tracking message logging */
97 env = curlx_getenv("CURL_MEMDEBUG");
99 /* use the value as file name */
100 char fname[CURL_MT_LOGFNAME_BUFSIZE];
101 if(strlen(env) >= CURL_MT_LOGFNAME_BUFSIZE)
102 env[CURL_MT_LOGFNAME_BUFSIZE-1] = '\0';
105 curl_memdebug(fname);
106 /* this weird stuff here is to make curl_free() get called
107 before curl_memdebug() as otherwise memory tracking will
108 log a free() without an alloc! */
110 /* if CURL_MEMLIMIT is set, this enables fail-on-alloc-number-N feature */
111 env = curlx_getenv("CURL_MEMLIMIT");
114 long num = strtol(env, &endptr, 10);
115 if((endptr != env) && (endptr == env + strlen(env)) && (num > 0))
121 # define memory_tracking_init() Curl_nop_stmt
125 * This is the main global constructor for the app. Call this before
126 * _any_ libcurl usage. If this fails, *NO* libcurl functions may be
127 * used, or havoc may be the result.
129 static CURLcode main_init(struct GlobalConfig *config)
131 CURLcode result = CURLE_OK;
133 #if defined(__DJGPP__) || defined(__GO32__)
134 /* stop stat() wasting time */
135 _djstat_flags |= _STAT_INODE | _STAT_EXEC_MAGIC | _STAT_DIRSIZE;
138 /* Initialise the global config */
139 config->showerror = -1; /* Will show errors */
140 config->errors = stderr; /* Default errors to stderr */
142 /* Allocate the initial operate config */
143 config->first = config->last = malloc(sizeof(struct OperationConfig));
145 /* Perform the libcurl initialization */
146 result = curl_global_init(CURL_GLOBAL_DEFAULT);
148 /* Get information about libcurl */
149 result = get_libcurl_info();
152 /* Get a curl handle to use for all forthcoming curl transfers */
153 config->easy = curl_easy_init();
155 /* Initialise the config */
156 config_init(config->first);
157 config->first->easy = config->easy;
158 config->first->global = config;
161 helpf(stderr, "error initializing curl easy handle\n");
162 result = CURLE_FAILED_INIT;
167 helpf(stderr, "error retrieving curl library information\n");
172 helpf(stderr, "error initializing curl library\n");
177 helpf(stderr, "error initializing curl\n");
178 result = CURLE_FAILED_INIT;
184 static void free_config_fields(struct GlobalConfig *config)
186 Curl_safefree(config->trace_dump);
188 if(config->errors_fopened && config->errors)
189 fclose(config->errors);
190 config->errors = NULL;
192 if(config->trace_fopened && config->trace_stream)
193 fclose(config->trace_stream);
194 config->trace_stream = NULL;
196 Curl_safefree(config->libcurl);
200 * This is the main global destructor for the app. Call this after
201 * _all_ libcurl usage is done.
203 static void main_free(struct GlobalConfig *config)
205 /* Cleanup the easy handle */
206 curl_easy_cleanup(config->easy);
210 curl_global_cleanup();
214 if(PR_Initialized()) {
215 /* prevent valgrind from reporting still reachable mem from NSRP arenas */
217 /* prevent valgrind from reporting possibly lost memory (fd cache, ...) */
221 free_config_fields(config);
223 /* Free the config structures */
224 config_free(config->last);
225 config->first = NULL;
230 ** curl tool main function.
232 int main(int argc, char *argv[])
234 CURLcode result = CURLE_OK;
235 struct GlobalConfig global;
236 memset(&global, 0, sizeof(global));
240 #if defined(HAVE_SIGNAL) && defined(SIGPIPE)
241 (void)signal(SIGPIPE, SIG_IGN);
244 /* Initialize memory tracking */
245 memory_tracking_init();
247 /* Initialize the curl library - do not call any libcurl functions before
249 result = main_init(&global);
251 /* Start our curl operation */
252 result = operate(&global, argc, argv);
259 /* Perform the main cleanup */
263 #ifdef __NOVELL_LIBC__
264 if(getenv("_IN_NETWARE_BASH_") == NULL)
269 vms_special_exit(result, vms_show);
275 #endif /* ndef UNITTESTS */