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1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
5  *                            | (__| |_| |  _ <| |___
6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
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 https://curl.haxx.se/docs/copyright.html.
13  *
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.
17  *
18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  ***************************************************************************/
22 #include "tool_setup.h"
23 
24 #ifdef HAVE_FCNTL_H
25 #  include <fcntl.h>
26 #endif
27 
28 #ifdef HAVE_UTIME_H
29 #  include <utime.h>
30 #elif defined(HAVE_SYS_UTIME_H)
31 #  include <sys/utime.h>
32 #endif
33 
34 #ifdef HAVE_LOCALE_H
35 #  include <locale.h>
36 #endif
37 
38 #ifdef HAVE_NETINET_TCP_H
39 #  include <netinet/tcp.h>
40 #endif
41 
42 #ifdef __VMS
43 #  include <fabdef.h>
44 #endif
45 
46 #include "strcase.h"
47 
48 #define ENABLE_CURLX_PRINTF
49 /* use our own printf() functions */
50 #include "curlx.h"
51 
52 #include "tool_binmode.h"
53 #include "tool_cfgable.h"
54 #include "tool_cb_dbg.h"
55 #include "tool_cb_hdr.h"
56 #include "tool_cb_prg.h"
57 #include "tool_cb_rea.h"
58 #include "tool_cb_see.h"
59 #include "tool_cb_wrt.h"
60 #include "tool_dirhie.h"
61 #include "tool_doswin.h"
62 #include "tool_easysrc.h"
63 #include "tool_getparam.h"
64 #include "tool_helpers.h"
65 #include "tool_homedir.h"
66 #include "tool_libinfo.h"
67 #include "tool_main.h"
68 #include "tool_metalink.h"
69 #include "tool_msgs.h"
70 #include "tool_operate.h"
71 #include "tool_operhlp.h"
72 #include "tool_paramhlp.h"
73 #include "tool_parsecfg.h"
74 #include "tool_setopt.h"
75 #include "tool_sleep.h"
76 #include "tool_urlglob.h"
77 #include "tool_util.h"
78 #include "tool_writeenv.h"
79 #include "tool_writeout.h"
80 #include "tool_xattr.h"
81 #include "tool_vms.h"
82 #include "tool_help.h"
83 #include "tool_hugehelp.h"
84 
85 #include "memdebug.h" /* keep this as LAST include */
86 
87 #ifdef CURLDEBUG
88 /* libcurl's debug builds provide an extra function */
89 CURLcode curl_easy_perform_ev(CURL *easy);
90 #endif
91 
92 #define CURLseparator  "--_curl_--"
93 
94 #ifndef O_BINARY
95 /* since O_BINARY as used in bitmasks, setting it to zero makes it usable in
96    source code but yet it doesn't ruin anything */
97 #  define O_BINARY 0
98 #endif
99 
100 #define CURL_CA_CERT_ERRORMSG1                                              \
101   "More details here: https://curl.haxx.se/docs/sslcerts.html\n\n"           \
102   "curl performs SSL certificate verification by default, "                 \
103   "using a \"bundle\"\n"                                                    \
104   " of Certificate Authority (CA) public keys (CA certs). If the default\n" \
105   " bundle file isn't adequate, you can specify an alternate file\n"        \
106   " using the --cacert option.\n"
107 
108 #define CURL_CA_CERT_ERRORMSG2                                              \
109   "If this HTTPS server uses a certificate signed by a CA represented in\n" \
110   " the bundle, the certificate verification probably failed due to a\n"    \
111   " problem with the certificate (it might be expired, or the name might\n" \
112   " not match the domain name in the URL).\n"                               \
113   "If you'd like to turn off curl's verification of the certificate, use\n" \
114   " the -k (or --insecure) option.\n"
115 
is_fatal_error(CURLcode code)116 static bool is_fatal_error(CURLcode code)
117 {
118   switch(code) {
119   /* TODO: Should CURLE_SSL_CACERT be included as critical error ? */
120   case CURLE_FAILED_INIT:
121   case CURLE_OUT_OF_MEMORY:
122   case CURLE_UNKNOWN_OPTION:
123   case CURLE_FUNCTION_NOT_FOUND:
124   case CURLE_BAD_FUNCTION_ARGUMENT:
125     /* critical error */
126     return TRUE;
127   default:
128     break;
129   }
130 
131   /* no error or not critical */
132   return FALSE;
133 }
134 
135 #ifdef __VMS
136 /*
137  * get_vms_file_size does what it takes to get the real size of the file
138  *
139  * For fixed files, find out the size of the EOF block and adjust.
140  *
141  * For all others, have to read the entire file in, discarding the contents.
142  * Most posted text files will be small, and binary files like zlib archives
143  * and CD/DVD images should be either a STREAM_LF format or a fixed format.
144  *
145  */
vms_realfilesize(const char * name,const struct_stat * stat_buf)146 static curl_off_t vms_realfilesize(const char *name,
147                                    const struct_stat *stat_buf)
148 {
149   char buffer[8192];
150   curl_off_t count;
151   int ret_stat;
152   FILE * file;
153 
154   /* !checksrc! disable FOPENMODE 1 */
155   file = fopen(name, "r"); /* VMS */
156   if(file == NULL) {
157     return 0;
158   }
159   count = 0;
160   ret_stat = 1;
161   while(ret_stat > 0) {
162     ret_stat = fread(buffer, 1, sizeof(buffer), file);
163     if(ret_stat != 0)
164       count += ret_stat;
165   }
166   fclose(file);
167 
168   return count;
169 }
170 
171 /*
172  *
173  *  VmsSpecialSize checks to see if the stat st_size can be trusted and
174  *  if not to call a routine to get the correct size.
175  *
176  */
VmsSpecialSize(const char * name,const struct_stat * stat_buf)177 static curl_off_t VmsSpecialSize(const char *name,
178                                  const struct_stat *stat_buf)
179 {
180   switch(stat_buf->st_fab_rfm) {
181   case FAB$C_VAR:
182   case FAB$C_VFC:
183     return vms_realfilesize(name, stat_buf);
184     break;
185   default:
186     return stat_buf->st_size;
187   }
188 }
189 #endif /* __VMS */
190 
operate_do(struct GlobalConfig * global,struct OperationConfig * config)191 static CURLcode operate_do(struct GlobalConfig *global,
192                            struct OperationConfig *config)
193 {
194   char errorbuffer[CURL_ERROR_SIZE];
195   struct ProgressData progressbar;
196   struct getout *urlnode;
197 
198   struct HdrCbData hdrcbdata;
199   struct OutStruct heads;
200 
201   metalinkfile *mlfile_last = NULL;
202 
203   CURL *curl = config->easy;
204   char *httpgetfields = NULL;
205 
206   CURLcode result = CURLE_OK;
207   unsigned long li;
208   bool capath_from_env;
209 
210   /* Save the values of noprogress and isatty to restore them later on */
211   bool orig_noprogress = global->noprogress;
212   bool orig_isatty = global->isatty;
213 
214   errorbuffer[0] = '\0';
215 
216   /* default headers output stream is stdout */
217   memset(&hdrcbdata, 0, sizeof(struct HdrCbData));
218   memset(&heads, 0, sizeof(struct OutStruct));
219   heads.stream = stdout;
220   heads.config = config;
221 
222   /*
223   ** Beyond this point no return'ing from this function allowed.
224   ** Jump to label 'quit_curl' in order to abandon this function
225   ** from outside of nested loops further down below.
226   */
227 
228   /* Check we have a url */
229   if(!config->url_list || !config->url_list->url) {
230     helpf(global->errors, "no URL specified!\n");
231     result = CURLE_FAILED_INIT;
232     goto quit_curl;
233   }
234 
235   /* On WIN32 we can't set the path to curl-ca-bundle.crt
236    * at compile time. So we look here for the file in two ways:
237    * 1: look at the environment variable CURL_CA_BUNDLE for a path
238    * 2: if #1 isn't found, use the windows API function SearchPath()
239    *    to find it along the app's path (includes app's dir and CWD)
240    *
241    * We support the environment variable thing for non-Windows platforms
242    * too. Just for the sake of it.
243    */
244   capath_from_env = false;
245   if(!config->cacert &&
246      !config->capath &&
247      !config->insecure_ok) {
248     char *env;
249     env = curlx_getenv("CURL_CA_BUNDLE");
250     if(env) {
251       config->cacert = strdup(env);
252       if(!config->cacert) {
253         curl_free(env);
254         helpf(global->errors, "out of memory\n");
255         result = CURLE_OUT_OF_MEMORY;
256         goto quit_curl;
257       }
258     }
259     else {
260       env = curlx_getenv("SSL_CERT_DIR");
261       if(env) {
262         config->capath = strdup(env);
263         if(!config->capath) {
264           curl_free(env);
265           helpf(global->errors, "out of memory\n");
266           result = CURLE_OUT_OF_MEMORY;
267           goto quit_curl;
268         }
269         capath_from_env = true;
270       }
271       else {
272         env = curlx_getenv("SSL_CERT_FILE");
273         if(env) {
274           config->cacert = strdup(env);
275           if(!config->cacert) {
276             curl_free(env);
277             helpf(global->errors, "out of memory\n");
278             result = CURLE_OUT_OF_MEMORY;
279             goto quit_curl;
280           }
281         }
282       }
283     }
284 
285     if(env)
286       curl_free(env);
287 #ifdef WIN32
288     else {
289       result = FindWin32CACert(config, "curl-ca-bundle.crt");
290       if(result)
291         goto quit_curl;
292     }
293 #endif
294   }
295 
296   if(config->postfields) {
297     if(config->use_httpget) {
298       /* Use the postfields data for a http get */
299       httpgetfields = strdup(config->postfields);
300       Curl_safefree(config->postfields);
301       if(!httpgetfields) {
302         helpf(global->errors, "out of memory\n");
303         result = CURLE_OUT_OF_MEMORY;
304         goto quit_curl;
305       }
306       if(SetHTTPrequest(config,
307                         (config->no_body?HTTPREQ_HEAD:HTTPREQ_GET),
308                         &config->httpreq)) {
309         result = CURLE_FAILED_INIT;
310         goto quit_curl;
311       }
312     }
313     else {
314       if(SetHTTPrequest(config, HTTPREQ_SIMPLEPOST, &config->httpreq)) {
315         result = CURLE_FAILED_INIT;
316         goto quit_curl;
317       }
318     }
319   }
320 
321   /* Single header file for all URLs */
322   if(config->headerfile) {
323     /* open file for output: */
324     if(strcmp(config->headerfile, "-")) {
325       FILE *newfile = fopen(config->headerfile, "wb");
326       if(!newfile) {
327         warnf(config->global, "Failed to open %s\n", config->headerfile);
328         result = CURLE_WRITE_ERROR;
329         goto quit_curl;
330       }
331       else {
332         heads.filename = config->headerfile;
333         heads.s_isreg = TRUE;
334         heads.fopened = TRUE;
335         heads.stream = newfile;
336       }
337     }
338     else {
339       /* always use binary mode for protocol header output */
340       set_binmode(heads.stream);
341     }
342   }
343 
344   /*
345   ** Nested loops start here.
346   */
347 
348   /* loop through the list of given URLs */
349 
350   for(urlnode = config->url_list; urlnode; urlnode = urlnode->next) {
351 
352     unsigned long up; /* upload file counter within a single upload glob */
353     char *infiles; /* might be a glob pattern */
354     char *outfiles;
355     unsigned long infilenum;
356     URLGlob *inglob;
357 
358     int metalink = 0; /* nonzero for metalink download. */
359     metalinkfile *mlfile;
360     metalink_resource *mlres;
361 
362     outfiles = NULL;
363     infilenum = 1;
364     inglob = NULL;
365 
366     if(urlnode->flags & GETOUT_METALINK) {
367       metalink = 1;
368       if(mlfile_last == NULL) {
369         mlfile_last = config->metalinkfile_list;
370       }
371       mlfile = mlfile_last;
372       mlfile_last = mlfile_last->next;
373       mlres = mlfile->resource;
374     }
375     else {
376       mlfile = NULL;
377       mlres = NULL;
378     }
379 
380     /* urlnode->url is the full URL (it might be NULL) */
381 
382     if(!urlnode->url) {
383       /* This node has no URL. Free node data without destroying the
384          node itself nor modifying next pointer and continue to next */
385       Curl_safefree(urlnode->outfile);
386       Curl_safefree(urlnode->infile);
387       urlnode->flags = 0;
388       continue; /* next URL please */
389     }
390 
391     /* save outfile pattern before expansion */
392     if(urlnode->outfile) {
393       outfiles = strdup(urlnode->outfile);
394       if(!outfiles) {
395         helpf(global->errors, "out of memory\n");
396         result = CURLE_OUT_OF_MEMORY;
397         break;
398       }
399     }
400 
401     infiles = urlnode->infile;
402 
403     if(!config->globoff && infiles) {
404       /* Unless explicitly shut off */
405       result = glob_url(&inglob, infiles, &infilenum,
406                         global->showerror?global->errors:NULL);
407       if(result) {
408         Curl_safefree(outfiles);
409         break;
410       }
411     }
412 
413     /* Here's the loop for uploading multiple files within the same
414        single globbed string. If no upload, we enter the loop once anyway. */
415     for(up = 0 ; up < infilenum; up++) {
416 
417       char *uploadfile; /* a single file, never a glob */
418       int separator;
419       URLGlob *urls;
420       unsigned long urlnum;
421 
422       uploadfile = NULL;
423       urls = NULL;
424       urlnum = 0;
425 
426       if(!up && !infiles)
427         Curl_nop_stmt;
428       else {
429         if(inglob) {
430           result = glob_next_url(&uploadfile, inglob);
431           if(result == CURLE_OUT_OF_MEMORY)
432             helpf(global->errors, "out of memory\n");
433         }
434         else if(!up) {
435           uploadfile = strdup(infiles);
436           if(!uploadfile) {
437             helpf(global->errors, "out of memory\n");
438             result = CURLE_OUT_OF_MEMORY;
439           }
440         }
441         else
442           uploadfile = NULL;
443         if(!uploadfile)
444           break;
445       }
446 
447       if(metalink) {
448         /* For Metalink download, we don't use glob. Instead we use
449            the number of resources as urlnum. */
450         urlnum = count_next_metalink_resource(mlfile);
451       }
452       else
453       if(!config->globoff) {
454         /* Unless explicitly shut off, we expand '{...}' and '[...]'
455            expressions and return total number of URLs in pattern set */
456         result = glob_url(&urls, urlnode->url, &urlnum,
457                           global->showerror?global->errors:NULL);
458         if(result) {
459           Curl_safefree(uploadfile);
460           break;
461         }
462       }
463       else
464         urlnum = 1; /* without globbing, this is a single URL */
465 
466       /* if multiple files extracted to stdout, insert separators! */
467       separator= ((!outfiles || !strcmp(outfiles, "-")) && urlnum > 1);
468 
469       /* Here's looping around each globbed URL */
470       for(li = 0 ; li < urlnum; li++) {
471 
472         int infd;
473         bool infdopen;
474         char *outfile;
475         struct OutStruct outs;
476         struct InStruct input;
477         struct timeval retrystart;
478         curl_off_t uploadfilesize;
479         long retry_numretries;
480         long retry_sleep_default;
481         long retry_sleep;
482         char *this_url = NULL;
483         int metalink_next_res = 0;
484 
485         outfile = NULL;
486         infdopen = FALSE;
487         infd = STDIN_FILENO;
488         uploadfilesize = -1; /* -1 means unknown */
489 
490         /* default output stream is stdout */
491         memset(&outs, 0, sizeof(struct OutStruct));
492         outs.stream = stdout;
493         outs.config = config;
494 
495         if(metalink) {
496           /* For Metalink download, use name in Metalink file as
497              filename. */
498           outfile = strdup(mlfile->filename);
499           if(!outfile) {
500             result = CURLE_OUT_OF_MEMORY;
501             goto show_error;
502           }
503           this_url = strdup(mlres->url);
504           if(!this_url) {
505             result = CURLE_OUT_OF_MEMORY;
506             goto show_error;
507           }
508         }
509         else {
510           if(urls) {
511             result = glob_next_url(&this_url, urls);
512             if(result)
513               goto show_error;
514           }
515           else if(!li) {
516             this_url = strdup(urlnode->url);
517             if(!this_url) {
518               result = CURLE_OUT_OF_MEMORY;
519               goto show_error;
520             }
521           }
522           else
523             this_url = NULL;
524           if(!this_url)
525             break;
526 
527           if(outfiles) {
528             outfile = strdup(outfiles);
529             if(!outfile) {
530               result = CURLE_OUT_OF_MEMORY;
531               goto show_error;
532             }
533           }
534         }
535 
536         if(((urlnode->flags&GETOUT_USEREMOTE) ||
537             (outfile && strcmp("-", outfile))) &&
538            (metalink || !config->use_metalink)) {
539 
540           /*
541            * We have specified a file name to store the result in, or we have
542            * decided we want to use the remote file name.
543            */
544 
545           if(!outfile) {
546             /* extract the file name from the URL */
547             result = get_url_file_name(&outfile, this_url);
548             if(result)
549               goto show_error;
550             if(!*outfile && !config->content_disposition) {
551               helpf(global->errors, "Remote file name has no length!\n");
552               result = CURLE_WRITE_ERROR;
553               goto quit_urls;
554             }
555           }
556           else if(urls) {
557             /* fill '#1' ... '#9' terms from URL pattern */
558             char *storefile = outfile;
559             result = glob_match_url(&outfile, storefile, urls);
560             Curl_safefree(storefile);
561             if(result) {
562               /* bad globbing */
563               warnf(config->global, "bad output glob!\n");
564               goto quit_urls;
565             }
566           }
567 
568           /* Create the directory hierarchy, if not pre-existent to a multiple
569              file output call */
570 
571           if(config->create_dirs || metalink) {
572             result = create_dir_hierarchy(outfile, global->errors);
573             /* create_dir_hierarchy shows error upon CURLE_WRITE_ERROR */
574             if(result == CURLE_WRITE_ERROR)
575               goto quit_urls;
576             if(result) {
577               goto show_error;
578             }
579           }
580 
581           if((urlnode->flags & GETOUT_USEREMOTE)
582              && config->content_disposition) {
583             /* Our header callback MIGHT set the filename */
584             DEBUGASSERT(!outs.filename);
585           }
586 
587           if(config->resume_from_current) {
588             /* We're told to continue from where we are now. Get the size
589                of the file as it is now and open it for append instead */
590             struct_stat fileinfo;
591             /* VMS -- Danger, the filesize is only valid for stream files */
592             if(0 == stat(outfile, &fileinfo))
593               /* set offset to current file size: */
594               config->resume_from = fileinfo.st_size;
595             else
596               /* let offset be 0 */
597               config->resume_from = 0;
598           }
599 
600           if(config->resume_from) {
601 #ifdef __VMS
602             /* open file for output, forcing VMS output format into stream
603                mode which is needed for stat() call above to always work. */
604             FILE *file = fopen(outfile, config->resume_from?"ab":"wb",
605                                "ctx=stm", "rfm=stmlf", "rat=cr", "mrs=0");
606 #else
607             /* open file for output: */
608             FILE *file = fopen(outfile, config->resume_from?"ab":"wb");
609 #endif
610             if(!file) {
611               helpf(global->errors, "Can't open '%s'!\n", outfile);
612               result = CURLE_WRITE_ERROR;
613               goto quit_urls;
614             }
615             outs.fopened = TRUE;
616             outs.stream = file;
617             outs.init = config->resume_from;
618           }
619           else {
620             outs.stream = NULL; /* open when needed */
621           }
622           outs.filename = outfile;
623           outs.s_isreg = TRUE;
624         }
625 
626         if(uploadfile && !stdin_upload(uploadfile)) {
627           /*
628            * We have specified a file to upload and it isn't "-".
629            */
630           struct_stat fileinfo;
631 
632           this_url = add_file_name_to_url(curl, this_url, uploadfile);
633           if(!this_url) {
634             result = CURLE_OUT_OF_MEMORY;
635             goto show_error;
636           }
637           /* VMS Note:
638            *
639            * Reading binary from files can be a problem...  Only FIXED, VAR
640            * etc WITHOUT implied CC will work Others need a \n appended to a
641            * line
642            *
643            * - Stat gives a size but this is UNRELIABLE in VMS As a f.e. a
644            * fixed file with implied CC needs to have a byte added for every
645            * record processed, this can by derived from Filesize & recordsize
646            * for VARiable record files the records need to be counted!  for
647            * every record add 1 for linefeed and subtract 2 for the record
648            * header for VARIABLE header files only the bare record data needs
649            * to be considered with one appended if implied CC
650            */
651 #ifdef __VMS
652           /* Calculate the real upload site for VMS */
653           infd = -1;
654           if(stat(uploadfile, &fileinfo) == 0) {
655             fileinfo.st_size = VmsSpecialSize(uploadfile, &fileinfo);
656             switch (fileinfo.st_fab_rfm) {
657             case FAB$C_VAR:
658             case FAB$C_VFC:
659             case FAB$C_STMCR:
660               infd = open(uploadfile, O_RDONLY | O_BINARY);
661               break;
662             default:
663               infd = open(uploadfile, O_RDONLY | O_BINARY,
664                           "rfm=stmlf", "ctx=stm");
665             }
666           }
667           if(infd == -1)
668 #else
669           infd = open(uploadfile, O_RDONLY | O_BINARY);
670           if((infd == -1) || fstat(infd, &fileinfo))
671 #endif
672           {
673             helpf(global->errors, "Can't open '%s'!\n", uploadfile);
674             if(infd != -1) {
675               close(infd);
676               infd = STDIN_FILENO;
677             }
678             result = CURLE_READ_ERROR;
679             goto quit_urls;
680           }
681           infdopen = TRUE;
682 
683           /* we ignore file size for char/block devices, sockets, etc. */
684           if(S_ISREG(fileinfo.st_mode))
685             uploadfilesize = fileinfo.st_size;
686 
687         }
688         else if(uploadfile && stdin_upload(uploadfile)) {
689           /* count to see if there are more than one auth bit set
690              in the authtype field */
691           int authbits = 0;
692           int bitcheck = 0;
693           while(bitcheck < 32) {
694             if(config->authtype & (1UL << bitcheck++)) {
695               authbits++;
696               if(authbits > 1) {
697                 /* more than one, we're done! */
698                 break;
699               }
700             }
701           }
702 
703           /*
704            * If the user has also selected --anyauth or --proxy-anyauth
705            * we should warn him/her.
706            */
707           if(config->proxyanyauth || (authbits>1)) {
708             warnf(config->global,
709                   "Using --anyauth or --proxy-anyauth with upload from stdin"
710                   " involves a big risk of it not working. Use a temporary"
711                   " file or a fixed auth type instead!\n");
712           }
713 
714           DEBUGASSERT(infdopen == FALSE);
715           DEBUGASSERT(infd == STDIN_FILENO);
716 
717           set_binmode(stdin);
718           if(!strcmp(uploadfile, ".")) {
719             if(curlx_nonblock((curl_socket_t)infd, TRUE) < 0)
720               warnf(config->global,
721                     "fcntl failed on fd=%d: %s\n", infd, strerror(errno));
722           }
723         }
724 
725         if(uploadfile && config->resume_from_current)
726           config->resume_from = -1; /* -1 will then force get-it-yourself */
727 
728         if(output_expected(this_url, uploadfile) && outs.stream &&
729            isatty(fileno(outs.stream)))
730           /* we send the output to a tty, therefore we switch off the progress
731              meter */
732           global->noprogress = global->isatty = TRUE;
733         else {
734           /* progress meter is per download, so restore config
735              values */
736           global->noprogress = orig_noprogress;
737           global->isatty = orig_isatty;
738         }
739 
740         if(urlnum > 1 && !global->mute) {
741           fprintf(global->errors, "\n[%lu/%lu]: %s --> %s\n",
742                   li+1, urlnum, this_url, outfile ? outfile : "<stdout>");
743           if(separator)
744             printf("%s%s\n", CURLseparator, this_url);
745         }
746         if(httpgetfields) {
747           char *urlbuffer;
748           /* Find out whether the url contains a file name */
749           const char *pc = strstr(this_url, "://");
750           char sep = '?';
751           if(pc)
752             pc += 3;
753           else
754             pc = this_url;
755 
756           pc = strrchr(pc, '/'); /* check for a slash */
757 
758           if(pc) {
759             /* there is a slash present in the URL */
760 
761             if(strchr(pc, '?'))
762               /* Ouch, there's already a question mark in the URL string, we
763                  then append the data with an ampersand separator instead! */
764               sep='&';
765           }
766           /*
767            * Then append ? followed by the get fields to the url.
768            */
769           if(pc)
770             urlbuffer = aprintf("%s%c%s", this_url, sep, httpgetfields);
771           else
772             /* Append  / before the ? to create a well-formed url
773                if the url contains a hostname only
774             */
775             urlbuffer = aprintf("%s/?%s", this_url, httpgetfields);
776 
777           if(!urlbuffer) {
778             result = CURLE_OUT_OF_MEMORY;
779             goto show_error;
780           }
781 
782           Curl_safefree(this_url); /* free previous URL */
783           this_url = urlbuffer; /* use our new URL instead! */
784         }
785 
786         if(!global->errors)
787           global->errors = stderr;
788 
789         if((!outfile || !strcmp(outfile, "-")) && !config->use_ascii) {
790           /* We get the output to stdout and we have not got the ASCII/text
791              flag, then set stdout to be binary */
792           set_binmode(stdout);
793         }
794 
795         if(!config->tcp_nodelay)
796           my_setopt(curl, CURLOPT_TCP_NODELAY, 0L);
797 
798         if(config->tcp_fastopen)
799           my_setopt(curl, CURLOPT_TCP_FASTOPEN, 1L);
800 
801         /* where to store */
802         my_setopt(curl, CURLOPT_WRITEDATA, &outs);
803         my_setopt(curl, CURLOPT_INTERLEAVEDATA, &outs);
804         if(metalink || !config->use_metalink)
805           /* what call to write */
806           my_setopt(curl, CURLOPT_WRITEFUNCTION, tool_write_cb);
807 #ifdef USE_METALINK
808         else
809           /* Set Metalink specific write callback function to parse
810              XML data progressively. */
811           my_setopt(curl, CURLOPT_WRITEFUNCTION, metalink_write_cb);
812 #endif /* USE_METALINK */
813 
814         /* for uploads */
815         input.fd = infd;
816         input.config = config;
817         /* Note that if CURLOPT_READFUNCTION is fread (the default), then
818          * lib/telnet.c will Curl_poll() on the input file descriptor
819          * rather then calling the READFUNCTION at regular intervals.
820          * The circumstances in which it is preferable to enable this
821          * behaviour, by omitting to set the READFUNCTION & READDATA options,
822          * have not been determined.
823          */
824         my_setopt(curl, CURLOPT_READDATA, &input);
825         /* what call to read */
826         my_setopt(curl, CURLOPT_READFUNCTION, tool_read_cb);
827 
828         /* in 7.18.0, the CURLOPT_SEEKFUNCTION/DATA pair is taking over what
829            CURLOPT_IOCTLFUNCTION/DATA pair previously provided for seeking */
830         my_setopt(curl, CURLOPT_SEEKDATA, &input);
831         my_setopt(curl, CURLOPT_SEEKFUNCTION, tool_seek_cb);
832 
833         if(config->recvpersecond)
834           /* tell libcurl to use a smaller sized buffer as it allows us to
835              make better sleeps! 7.9.9 stuff! */
836           my_setopt(curl, CURLOPT_BUFFERSIZE, (long)config->recvpersecond);
837 
838         /* size of uploaded file: */
839         if(uploadfilesize != -1)
840           my_setopt(curl, CURLOPT_INFILESIZE_LARGE, uploadfilesize);
841         my_setopt_str(curl, CURLOPT_URL, this_url);     /* what to fetch */
842         my_setopt(curl, CURLOPT_NOPROGRESS, global->noprogress?1L:0L);
843         if(config->no_body) {
844           my_setopt(curl, CURLOPT_NOBODY, 1L);
845           my_setopt(curl, CURLOPT_HEADER, 1L);
846         }
847         /* If --metalink is used, we ignore --include (headers in
848            output) option because mixing headers to the body will
849            confuse XML parser and/or hash check will fail. */
850         else if(!config->use_metalink)
851           my_setopt(curl, CURLOPT_HEADER, config->include_headers?1L:0L);
852 
853         if(config->oauth_bearer)
854           my_setopt_str(curl, CURLOPT_XOAUTH2_BEARER, config->oauth_bearer);
855 
856 #if !defined(CURL_DISABLE_PROXY)
857         {
858           /* TODO: Make this a run-time check instead of compile-time one. */
859 
860           my_setopt_str(curl, CURLOPT_PROXY, config->proxy);
861           my_setopt_str(curl, CURLOPT_PROXYUSERPWD, config->proxyuserpwd);
862 
863           /* new in libcurl 7.3 */
864           my_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, config->proxytunnel?1L:0L);
865 
866           /* new in libcurl 7.5 */
867           if(config->proxy)
868             my_setopt_enum(curl, CURLOPT_PROXYTYPE, (long)config->proxyver);
869 
870           /* new in libcurl 7.10 */
871           if(config->socksproxy) {
872             my_setopt_str(curl, CURLOPT_SOCKS_PROXY, config->socksproxy);
873             my_setopt_enum(curl, CURLOPT_SOCKS_PROXYTYPE,
874                            (long)config->socksver);
875           }
876 
877           /* new in libcurl 7.10.6 */
878           if(config->proxyanyauth)
879             my_setopt_bitmask(curl, CURLOPT_PROXYAUTH,
880                               (long)CURLAUTH_ANY);
881           else if(config->proxynegotiate)
882             my_setopt_bitmask(curl, CURLOPT_PROXYAUTH,
883                               (long)CURLAUTH_GSSNEGOTIATE);
884           else if(config->proxyntlm)
885             my_setopt_bitmask(curl, CURLOPT_PROXYAUTH,
886                               (long)CURLAUTH_NTLM);
887           else if(config->proxydigest)
888             my_setopt_bitmask(curl, CURLOPT_PROXYAUTH,
889                               (long)CURLAUTH_DIGEST);
890           else if(config->proxybasic)
891             my_setopt_bitmask(curl, CURLOPT_PROXYAUTH,
892                               (long)CURLAUTH_BASIC);
893 
894           /* new in libcurl 7.19.4 */
895           my_setopt_str(curl, CURLOPT_NOPROXY, config->noproxy);
896         }
897 #endif
898 
899         my_setopt(curl, CURLOPT_FAILONERROR, config->failonerror?1L:0L);
900         my_setopt(curl, CURLOPT_UPLOAD, uploadfile?1L:0L);
901         my_setopt(curl, CURLOPT_DIRLISTONLY, config->dirlistonly?1L:0L);
902         my_setopt(curl, CURLOPT_APPEND, config->ftp_append?1L:0L);
903 
904         if(config->netrc_opt)
905           my_setopt_enum(curl, CURLOPT_NETRC, (long)CURL_NETRC_OPTIONAL);
906         else if(config->netrc || config->netrc_file)
907           my_setopt_enum(curl, CURLOPT_NETRC, (long)CURL_NETRC_REQUIRED);
908         else
909           my_setopt_enum(curl, CURLOPT_NETRC, (long)CURL_NETRC_IGNORED);
910 
911         if(config->netrc_file)
912           my_setopt_str(curl, CURLOPT_NETRC_FILE, config->netrc_file);
913 
914         my_setopt(curl, CURLOPT_TRANSFERTEXT, config->use_ascii?1L:0L);
915         if(config->login_options)
916           my_setopt_str(curl, CURLOPT_LOGIN_OPTIONS, config->login_options);
917         my_setopt_str(curl, CURLOPT_USERPWD, config->userpwd);
918         my_setopt_str(curl, CURLOPT_RANGE, config->range);
919         my_setopt(curl, CURLOPT_ERRORBUFFER, errorbuffer);
920         my_setopt(curl, CURLOPT_TIMEOUT_MS, (long)(config->timeout * 1000));
921 
922         if(built_in_protos & CURLPROTO_HTTP) {
923 
924           long postRedir = 0;
925 
926           my_setopt(curl, CURLOPT_FOLLOWLOCATION,
927                     config->followlocation?1L:0L);
928           my_setopt(curl, CURLOPT_UNRESTRICTED_AUTH,
929                     config->unrestricted_auth?1L:0L);
930 
931           switch(config->httpreq) {
932           case HTTPREQ_SIMPLEPOST:
933             my_setopt_str(curl, CURLOPT_POSTFIELDS,
934                           config->postfields);
935             my_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE,
936                       config->postfieldsize);
937             break;
938           case HTTPREQ_FORMPOST:
939             my_setopt_httppost(curl, CURLOPT_HTTPPOST, config->httppost);
940             break;
941           default:
942             break;
943           }
944 
945           my_setopt_str(curl, CURLOPT_REFERER, config->referer);
946           my_setopt(curl, CURLOPT_AUTOREFERER, config->autoreferer?1L:0L);
947           my_setopt_str(curl, CURLOPT_USERAGENT, config->useragent);
948           my_setopt_slist(curl, CURLOPT_HTTPHEADER, config->headers);
949 
950           /* new in libcurl 7.36.0 */
951           if(config->proxyheaders) {
952             my_setopt_slist(curl, CURLOPT_PROXYHEADER, config->proxyheaders);
953             my_setopt(curl, CURLOPT_HEADEROPT, CURLHEADER_SEPARATE);
954           }
955 
956           /* new in libcurl 7.5 */
957           my_setopt(curl, CURLOPT_MAXREDIRS, config->maxredirs);
958 
959           if(config->httpversion)
960             my_setopt_enum(curl, CURLOPT_HTTP_VERSION, config->httpversion);
961           else if(curlinfo->features & CURL_VERSION_HTTP2) {
962             my_setopt_enum(curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2TLS);
963           }
964 
965           /* new in libcurl 7.10.6 (default is Basic) */
966           if(config->authtype)
967             my_setopt_bitmask(curl, CURLOPT_HTTPAUTH, (long)config->authtype);
968 
969           /* curl 7.19.1 (the 301 version existed in 7.18.2),
970              303 was added in 7.26.0 */
971           if(config->post301)
972             postRedir |= CURL_REDIR_POST_301;
973           if(config->post302)
974             postRedir |= CURL_REDIR_POST_302;
975           if(config->post303)
976             postRedir |= CURL_REDIR_POST_303;
977           my_setopt(curl, CURLOPT_POSTREDIR, postRedir);
978 
979           /* new in libcurl 7.21.6 */
980           if(config->encoding)
981             my_setopt_str(curl, CURLOPT_ACCEPT_ENCODING, "");
982 
983           /* new in libcurl 7.21.6 */
984           if(config->tr_encoding)
985             my_setopt(curl, CURLOPT_TRANSFER_ENCODING, 1L);
986 
987         } /* (built_in_protos & CURLPROTO_HTTP) */
988 
989         my_setopt_str(curl, CURLOPT_FTPPORT, config->ftpport);
990         my_setopt(curl, CURLOPT_LOW_SPEED_LIMIT,
991                   config->low_speed_limit);
992         my_setopt(curl, CURLOPT_LOW_SPEED_TIME, config->low_speed_time);
993         my_setopt(curl, CURLOPT_MAX_SEND_SPEED_LARGE,
994                   config->sendpersecond);
995         my_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE,
996                   config->recvpersecond);
997 
998         if(config->use_resume)
999           my_setopt(curl, CURLOPT_RESUME_FROM_LARGE, config->resume_from);
1000         else
1001           my_setopt(curl, CURLOPT_RESUME_FROM_LARGE, CURL_OFF_T_C(0));
1002 
1003         my_setopt_str(curl, CURLOPT_KEYPASSWD, config->key_passwd);
1004         my_setopt_str(curl, CURLOPT_PROXY_KEYPASSWD, config->proxy_key_passwd);
1005 
1006         if(built_in_protos & (CURLPROTO_SCP|CURLPROTO_SFTP)) {
1007 
1008           /* SSH and SSL private key uses same command-line option */
1009           /* new in libcurl 7.16.1 */
1010           my_setopt_str(curl, CURLOPT_SSH_PRIVATE_KEYFILE, config->key);
1011           /* new in libcurl 7.16.1 */
1012           my_setopt_str(curl, CURLOPT_SSH_PUBLIC_KEYFILE, config->pubkey);
1013 
1014           /* new in libcurl 7.17.1: SSH host key md5 checking allows us
1015              to fail if we are not talking to who we think we should */
1016           my_setopt_str(curl, CURLOPT_SSH_HOST_PUBLIC_KEY_MD5,
1017                         config->hostpubmd5);
1018         }
1019 
1020         if(config->cacert)
1021           my_setopt_str(curl, CURLOPT_CAINFO, config->cacert);
1022         if(config->proxy_cacert)
1023           my_setopt_str(curl, CURLOPT_PROXY_CAINFO, config->proxy_cacert);
1024         if(config->capath) {
1025           result = res_setopt_str(curl, CURLOPT_CAPATH, config->capath);
1026           if(result == CURLE_NOT_BUILT_IN) {
1027             warnf(config->global, "ignoring %s, not supported by libcurl\n",
1028                   capath_from_env?
1029                   "SSL_CERT_DIR environment variable":"--capath");
1030           }
1031           else if(result)
1032             goto show_error;
1033         }
1034         if(config->proxy_capath)
1035           my_setopt_str(curl, CURLOPT_PROXY_CAPATH, config->proxy_capath);
1036         else if(config->capath) /* CURLOPT_PROXY_CAPATH default is capath */
1037           my_setopt_str(curl, CURLOPT_PROXY_CAPATH, config->capath);
1038 
1039         if(config->crlfile)
1040           my_setopt_str(curl, CURLOPT_CRLFILE, config->crlfile);
1041         if(config->proxy_crlfile)
1042           my_setopt_str(curl, CURLOPT_PROXY_CRLFILE, config->proxy_crlfile);
1043         else if(config->crlfile) /* CURLOPT_PROXY_CRLFILE default is crlfile */
1044           my_setopt_str(curl, CURLOPT_PROXY_CRLFILE, config->crlfile);
1045 
1046         if(config->pinnedpubkey)
1047           my_setopt_str(curl, CURLOPT_PINNEDPUBLICKEY, config->pinnedpubkey);
1048 
1049         if(curlinfo->features & CURL_VERSION_SSL) {
1050           my_setopt_str(curl, CURLOPT_SSLCERT, config->cert);
1051           my_setopt_str(curl, CURLOPT_PROXY_SSLCERT, config->proxy_cert);
1052           my_setopt_str(curl, CURLOPT_SSLCERTTYPE, config->cert_type);
1053           my_setopt_str(curl, CURLOPT_PROXY_SSLCERTTYPE,
1054                         config->proxy_cert_type);
1055           my_setopt_str(curl, CURLOPT_SSLKEY, config->key);
1056           my_setopt_str(curl, CURLOPT_PROXY_SSLKEY, config->proxy_key);
1057           my_setopt_str(curl, CURLOPT_SSLKEYTYPE, config->key_type);
1058           my_setopt_str(curl, CURLOPT_PROXY_SSLKEYTYPE,
1059                         config->proxy_key_type);
1060 
1061           if(config->insecure_ok) {
1062             my_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
1063             my_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
1064           }
1065           else {
1066             my_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
1067             /* libcurl default is strict verifyhost -> 2L   */
1068             /* my_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2L); */
1069           }
1070           if(config->proxy_insecure_ok) {
1071             my_setopt(curl, CURLOPT_PROXY_SSL_VERIFYPEER, 0L);
1072             my_setopt(curl, CURLOPT_PROXY_SSL_VERIFYHOST, 0L);
1073           }
1074           else {
1075             my_setopt(curl, CURLOPT_PROXY_SSL_VERIFYPEER, 1L);
1076           }
1077 
1078           if(config->verifystatus)
1079             my_setopt(curl, CURLOPT_SSL_VERIFYSTATUS, 1L);
1080 
1081           if(config->falsestart)
1082             my_setopt(curl, CURLOPT_SSL_FALSESTART, 1L);
1083 
1084           my_setopt_enum(curl, CURLOPT_SSLVERSION, config->ssl_version);
1085           my_setopt_enum(curl, CURLOPT_PROXY_SSLVERSION,
1086                          config->proxy_ssl_version);
1087         }
1088         if(config->path_as_is)
1089           my_setopt(curl, CURLOPT_PATH_AS_IS, 1L);
1090 
1091         if(built_in_protos & (CURLPROTO_SCP|CURLPROTO_SFTP)) {
1092           if(!config->insecure_ok) {
1093             char *home;
1094             char *file;
1095             result = CURLE_OUT_OF_MEMORY;
1096             home = homedir();
1097             if(home) {
1098               file = aprintf("%s/%sssh/known_hosts", home, DOT_CHAR);
1099               if(file) {
1100                 /* new in curl 7.19.6 */
1101                 result = res_setopt_str(curl, CURLOPT_SSH_KNOWNHOSTS, file);
1102                 curl_free(file);
1103                 if(result == CURLE_UNKNOWN_OPTION)
1104                   /* libssh2 version older than 1.1.1 */
1105                   result = CURLE_OK;
1106               }
1107               Curl_safefree(home);
1108             }
1109             if(result)
1110               goto show_error;
1111           }
1112         }
1113 
1114         if(config->no_body || config->remote_time) {
1115           /* no body or use remote time */
1116           my_setopt(curl, CURLOPT_FILETIME, 1L);
1117         }
1118 
1119         my_setopt(curl, CURLOPT_CRLF, config->crlf?1L:0L);
1120         my_setopt_slist(curl, CURLOPT_QUOTE, config->quote);
1121         my_setopt_slist(curl, CURLOPT_POSTQUOTE, config->postquote);
1122         my_setopt_slist(curl, CURLOPT_PREQUOTE, config->prequote);
1123 
1124 #if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
1125         if(config->cookie)
1126           my_setopt_str(curl, CURLOPT_COOKIE, config->cookie);
1127 
1128         if(config->cookiefile)
1129           my_setopt_str(curl, CURLOPT_COOKIEFILE, config->cookiefile);
1130 
1131         /* new in libcurl 7.9 */
1132         if(config->cookiejar)
1133           my_setopt_str(curl, CURLOPT_COOKIEJAR, config->cookiejar);
1134 
1135         /* new in libcurl 7.9.7 */
1136         my_setopt(curl, CURLOPT_COOKIESESSION, config->cookiesession?1L:0L);
1137 #else
1138         if(config->cookie || config->cookiefile || config->cookiejar) {
1139           warnf(config->global, "cookie option(s) used even though cookie "
1140                 "support is disabled!\n");
1141           return CURLE_NOT_BUILT_IN;
1142         }
1143 #endif
1144 
1145         my_setopt_enum(curl, CURLOPT_TIMECONDITION, (long)config->timecond);
1146         my_setopt(curl, CURLOPT_TIMEVALUE, (long)config->condtime);
1147         my_setopt_str(curl, CURLOPT_CUSTOMREQUEST, config->customrequest);
1148         customrequest_helper(config, config->httpreq, config->customrequest);
1149         my_setopt(curl, CURLOPT_STDERR, global->errors);
1150 
1151         /* three new ones in libcurl 7.3: */
1152         my_setopt_str(curl, CURLOPT_INTERFACE, config->iface);
1153         my_setopt_str(curl, CURLOPT_KRBLEVEL, config->krblevel);
1154 
1155         progressbarinit(&progressbar, config);
1156         if((global->progressmode == CURL_PROGRESS_BAR) &&
1157            !global->noprogress && !global->mute) {
1158           /* we want the alternative style, then we have to implement it
1159              ourselves! */
1160           my_setopt(curl, CURLOPT_XFERINFOFUNCTION, tool_progress_cb);
1161           my_setopt(curl, CURLOPT_XFERINFODATA, &progressbar);
1162         }
1163 
1164         /* new in libcurl 7.24.0: */
1165         if(config->dns_servers)
1166           my_setopt_str(curl, CURLOPT_DNS_SERVERS, config->dns_servers);
1167 
1168         /* new in libcurl 7.33.0: */
1169         if(config->dns_interface)
1170           my_setopt_str(curl, CURLOPT_DNS_INTERFACE, config->dns_interface);
1171         if(config->dns_ipv4_addr)
1172           my_setopt_str(curl, CURLOPT_DNS_LOCAL_IP4, config->dns_ipv4_addr);
1173         if(config->dns_ipv6_addr)
1174         my_setopt_str(curl, CURLOPT_DNS_LOCAL_IP6, config->dns_ipv6_addr);
1175 
1176         /* new in libcurl 7.6.2: */
1177         my_setopt_slist(curl, CURLOPT_TELNETOPTIONS, config->telnet_options);
1178 
1179         /* new in libcurl 7.7: */
1180         my_setopt_str(curl, CURLOPT_RANDOM_FILE, config->random_file);
1181         my_setopt_str(curl, CURLOPT_EGDSOCKET, config->egd_file);
1182         my_setopt(curl, CURLOPT_CONNECTTIMEOUT_MS,
1183                   (long)(config->connecttimeout * 1000));
1184 
1185         if(config->cipher_list)
1186           my_setopt_str(curl, CURLOPT_SSL_CIPHER_LIST, config->cipher_list);
1187 
1188         if(config->proxy_cipher_list)
1189           my_setopt_str(curl, CURLOPT_PROXY_SSL_CIPHER_LIST,
1190                         config->proxy_cipher_list);
1191 
1192         /* new in libcurl 7.9.2: */
1193         if(config->disable_epsv)
1194           /* disable it */
1195           my_setopt(curl, CURLOPT_FTP_USE_EPSV, 0L);
1196 
1197         /* new in libcurl 7.10.5 */
1198         if(config->disable_eprt)
1199           /* disable it */
1200           my_setopt(curl, CURLOPT_FTP_USE_EPRT, 0L);
1201 
1202         if(global->tracetype != TRACE_NONE) {
1203           my_setopt(curl, CURLOPT_DEBUGFUNCTION, tool_debug_cb);
1204           my_setopt(curl, CURLOPT_DEBUGDATA, config);
1205           my_setopt(curl, CURLOPT_VERBOSE, 1L);
1206         }
1207 
1208         /* new in curl 7.9.3 */
1209         if(config->engine) {
1210           result = res_setopt_str(curl, CURLOPT_SSLENGINE, config->engine);
1211           if(result)
1212             goto show_error;
1213         }
1214 
1215         /* new in curl 7.10.7, extended in 7.19.4. Modified to use
1216            CREATE_DIR_RETRY in 7.49.0 */
1217         my_setopt(curl, CURLOPT_FTP_CREATE_MISSING_DIRS,
1218                   (long)(config->ftp_create_dirs?
1219                          CURLFTP_CREATE_DIR_RETRY:
1220                          CURLFTP_CREATE_DIR_NONE));
1221 
1222         /* new in curl 7.10.8 */
1223         if(config->max_filesize)
1224           my_setopt(curl, CURLOPT_MAXFILESIZE_LARGE,
1225                     config->max_filesize);
1226 
1227         if(4 == config->ip_version)
1228           my_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
1229         else if(6 == config->ip_version)
1230           my_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);
1231         else
1232           my_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_WHATEVER);
1233 
1234         /* new in curl 7.15.5 */
1235         if(config->ftp_ssl_reqd)
1236           my_setopt_enum(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_ALL);
1237 
1238         /* new in curl 7.11.0 */
1239         else if(config->ftp_ssl)
1240           my_setopt_enum(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_TRY);
1241 
1242         /* new in curl 7.16.0 */
1243         else if(config->ftp_ssl_control)
1244           my_setopt_enum(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_CONTROL);
1245 
1246         /* new in curl 7.16.1 */
1247         if(config->ftp_ssl_ccc)
1248           my_setopt_enum(curl, CURLOPT_FTP_SSL_CCC,
1249                          (long)config->ftp_ssl_ccc_mode);
1250 
1251         /* new in curl 7.19.4 */
1252         if(config->socks5_gssapi_nec)
1253           my_setopt_str(curl, CURLOPT_SOCKS5_GSSAPI_NEC,
1254                         config->socks5_gssapi_nec);
1255 
1256         /* new in curl 7.43.0 */
1257         if(config->proxy_service_name)
1258           my_setopt_str(curl, CURLOPT_PROXY_SERVICE_NAME,
1259                         config->proxy_service_name);
1260 
1261         /* new in curl 7.43.0 */
1262         if(config->service_name)
1263           my_setopt_str(curl, CURLOPT_SERVICE_NAME,
1264                         config->service_name);
1265 
1266         /* curl 7.13.0 */
1267         my_setopt_str(curl, CURLOPT_FTP_ACCOUNT, config->ftp_account);
1268 
1269         my_setopt(curl, CURLOPT_IGNORE_CONTENT_LENGTH, config->ignorecl?1L:0L);
1270 
1271         /* curl 7.14.2 */
1272         my_setopt(curl, CURLOPT_FTP_SKIP_PASV_IP, config->ftp_skip_ip?1L:0L);
1273 
1274         /* curl 7.15.1 */
1275         my_setopt(curl, CURLOPT_FTP_FILEMETHOD, (long)config->ftp_filemethod);
1276 
1277         /* curl 7.15.2 */
1278         if(config->localport) {
1279           my_setopt(curl, CURLOPT_LOCALPORT, (long)config->localport);
1280           my_setopt_str(curl, CURLOPT_LOCALPORTRANGE,
1281                         (long)config->localportrange);
1282         }
1283 
1284         /* curl 7.15.5 */
1285         my_setopt_str(curl, CURLOPT_FTP_ALTERNATIVE_TO_USER,
1286                       config->ftp_alternative_to_user);
1287 
1288         /* curl 7.16.0 */
1289         if(config->disable_sessionid)
1290           /* disable it */
1291           my_setopt(curl, CURLOPT_SSL_SESSIONID_CACHE, 0L);
1292 
1293         /* curl 7.16.2 */
1294         if(config->raw) {
1295           my_setopt(curl, CURLOPT_HTTP_CONTENT_DECODING, 0L);
1296           my_setopt(curl, CURLOPT_HTTP_TRANSFER_DECODING, 0L);
1297         }
1298 
1299         /* curl 7.17.1 */
1300         if(!config->nokeepalive) {
1301           my_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
1302           if(config->alivetime != 0) {
1303             my_setopt(curl, CURLOPT_TCP_KEEPIDLE, config->alivetime);
1304             my_setopt(curl, CURLOPT_TCP_KEEPINTVL, config->alivetime);
1305           }
1306         }
1307         else
1308           my_setopt(curl, CURLOPT_TCP_KEEPALIVE, 0L);
1309 
1310         /* curl 7.20.0 */
1311         if(config->tftp_blksize)
1312           my_setopt(curl, CURLOPT_TFTP_BLKSIZE, config->tftp_blksize);
1313 
1314         if(config->mail_from)
1315           my_setopt_str(curl, CURLOPT_MAIL_FROM, config->mail_from);
1316 
1317         if(config->mail_rcpt)
1318           my_setopt_slist(curl, CURLOPT_MAIL_RCPT, config->mail_rcpt);
1319 
1320         /* curl 7.20.x */
1321         if(config->ftp_pret)
1322           my_setopt(curl, CURLOPT_FTP_USE_PRET, 1L);
1323 
1324         if(config->proto_present)
1325           my_setopt_flags(curl, CURLOPT_PROTOCOLS, config->proto);
1326         if(config->proto_redir_present)
1327           my_setopt_flags(curl, CURLOPT_REDIR_PROTOCOLS, config->proto_redir);
1328 
1329         if(config->content_disposition
1330            && (urlnode->flags & GETOUT_USEREMOTE))
1331           hdrcbdata.honor_cd_filename = TRUE;
1332         else
1333           hdrcbdata.honor_cd_filename = FALSE;
1334 
1335         hdrcbdata.outs = &outs;
1336         hdrcbdata.heads = &heads;
1337 
1338         my_setopt(curl, CURLOPT_HEADERFUNCTION, tool_header_cb);
1339         my_setopt(curl, CURLOPT_HEADERDATA, &hdrcbdata);
1340 
1341         if(config->resolve)
1342           /* new in 7.21.3 */
1343           my_setopt_slist(curl, CURLOPT_RESOLVE, config->resolve);
1344 
1345         if(config->connect_to)
1346           /* new in 7.49.0 */
1347           my_setopt_slist(curl, CURLOPT_CONNECT_TO, config->connect_to);
1348 
1349         /* new in 7.21.4 */
1350         if(curlinfo->features & CURL_VERSION_TLSAUTH_SRP) {
1351           if(config->tls_username)
1352             my_setopt_str(curl, CURLOPT_TLSAUTH_USERNAME,
1353                           config->tls_username);
1354           if(config->tls_password)
1355             my_setopt_str(curl, CURLOPT_TLSAUTH_PASSWORD,
1356                           config->tls_password);
1357           if(config->tls_authtype)
1358             my_setopt_str(curl, CURLOPT_TLSAUTH_TYPE,
1359                           config->tls_authtype);
1360           if(config->proxy_tls_username)
1361             my_setopt_str(curl, CURLOPT_PROXY_TLSAUTH_USERNAME,
1362                           config->proxy_tls_username);
1363           if(config->proxy_tls_password)
1364             my_setopt_str(curl, CURLOPT_PROXY_TLSAUTH_PASSWORD,
1365                           config->proxy_tls_password);
1366           if(config->proxy_tls_authtype)
1367             my_setopt_str(curl, CURLOPT_PROXY_TLSAUTH_TYPE,
1368                           config->proxy_tls_authtype);
1369         }
1370 
1371         /* new in 7.22.0 */
1372         if(config->gssapi_delegation)
1373           my_setopt_str(curl, CURLOPT_GSSAPI_DELEGATION,
1374                         config->gssapi_delegation);
1375 
1376         /* new in 7.25.0 and 7.44.0 */
1377         {
1378           long mask = (config->ssl_allow_beast ? CURLSSLOPT_ALLOW_BEAST : 0) |
1379                       (config->ssl_no_revoke ? CURLSSLOPT_NO_REVOKE : 0);
1380           if(mask)
1381             my_setopt_bitmask(curl, CURLOPT_SSL_OPTIONS, mask);
1382         }
1383 
1384         if(config->proxy_ssl_allow_beast)
1385           my_setopt(curl, CURLOPT_PROXY_SSL_OPTIONS,
1386                     (long)CURLSSLOPT_ALLOW_BEAST);
1387 
1388         if(config->mail_auth)
1389           my_setopt_str(curl, CURLOPT_MAIL_AUTH, config->mail_auth);
1390 
1391         /* new in 7.31.0 */
1392         if(config->sasl_ir)
1393           my_setopt(curl, CURLOPT_SASL_IR, 1L);
1394 
1395         if(config->nonpn) {
1396           my_setopt(curl, CURLOPT_SSL_ENABLE_NPN, 0L);
1397         }
1398 
1399         if(config->noalpn) {
1400           my_setopt(curl, CURLOPT_SSL_ENABLE_ALPN, 0L);
1401         }
1402 
1403         /* new in 7.40.0 */
1404         if(config->unix_socket_path)
1405           my_setopt_str(curl, CURLOPT_UNIX_SOCKET_PATH,
1406                         config->unix_socket_path);
1407 
1408         /* new in 7.45.0 */
1409         if(config->proto_default)
1410           my_setopt_str(curl, CURLOPT_DEFAULT_PROTOCOL, config->proto_default);
1411 
1412         /* new in 7.47.0 */
1413         if(config->expect100timeout > 0)
1414           my_setopt_str(curl, CURLOPT_EXPECT_100_TIMEOUT_MS,
1415                         (long)(config->expect100timeout*1000));
1416 
1417         /* new in 7.48.0 */
1418         if(config->tftp_no_options)
1419           my_setopt(curl, CURLOPT_TFTP_NO_OPTIONS, 1L);
1420 
1421         /* initialize retry vars for loop below */
1422         retry_sleep_default = (config->retry_delay) ?
1423           config->retry_delay*1000L : RETRY_SLEEP_DEFAULT; /* ms */
1424 
1425         retry_numretries = config->req_retry;
1426         retry_sleep = retry_sleep_default; /* ms */
1427         retrystart = tvnow();
1428 
1429 #ifndef CURL_DISABLE_LIBCURL_OPTION
1430         if(global->libcurl) {
1431           result = easysrc_perform();
1432           if(result)
1433             goto show_error;
1434         }
1435 #endif
1436 
1437         for(;;) {
1438 #ifdef USE_METALINK
1439           if(!metalink && config->use_metalink) {
1440             /* If outs.metalink_parser is non-NULL, delete it first. */
1441             if(outs.metalink_parser)
1442               metalink_parser_context_delete(outs.metalink_parser);
1443             outs.metalink_parser = metalink_parser_context_new();
1444             if(outs.metalink_parser == NULL) {
1445               result = CURLE_OUT_OF_MEMORY;
1446               goto show_error;
1447             }
1448             fprintf(config->global->errors,
1449                     "Metalink: parsing (%s) metalink/XML...\n", this_url);
1450           }
1451           else if(metalink)
1452             fprintf(config->global->errors,
1453                     "Metalink: fetching (%s) from (%s)...\n",
1454                     mlfile->filename, this_url);
1455 #endif /* USE_METALINK */
1456 
1457 #ifdef CURLDEBUG
1458           if(config->test_event_based)
1459             result = curl_easy_perform_ev(curl);
1460           else
1461 #endif
1462           result = curl_easy_perform(curl);
1463 
1464           if(!result && !outs.stream && !outs.bytes) {
1465             /* we have received no data despite the transfer was successful
1466                ==> force cration of an empty output file (if an output file
1467                was specified) */
1468             long cond_unmet = 0L;
1469             /* do not create (or even overwrite) the file in case we get no
1470                data because of unmet condition */
1471             curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &cond_unmet);
1472             if(!cond_unmet && !tool_create_output_file(&outs))
1473               result = CURLE_WRITE_ERROR;
1474           }
1475 
1476           if(outs.is_cd_filename && outs.stream && !global->mute &&
1477              outs.filename)
1478             printf("curl: Saved to filename '%s'\n", outs.filename);
1479 
1480           /* if retry-max-time is non-zero, make sure we haven't exceeded the
1481              time */
1482           if(retry_numretries &&
1483              (!config->retry_maxtime ||
1484               (tvdiff(tvnow(), retrystart) <
1485                config->retry_maxtime*1000L)) ) {
1486             enum {
1487               RETRY_NO,
1488               RETRY_TIMEOUT,
1489               RETRY_CONNREFUSED,
1490               RETRY_HTTP,
1491               RETRY_FTP,
1492               RETRY_LAST /* not used */
1493             } retry = RETRY_NO;
1494             long response;
1495             if((CURLE_OPERATION_TIMEDOUT == result) ||
1496                (CURLE_COULDNT_RESOLVE_HOST == result) ||
1497                (CURLE_COULDNT_RESOLVE_PROXY == result) ||
1498                (CURLE_FTP_ACCEPT_TIMEOUT == result))
1499               /* retry timeout always */
1500               retry = RETRY_TIMEOUT;
1501             else if(config->retry_connrefused &&
1502                     (CURLE_COULDNT_CONNECT == result)) {
1503               long oserrno;
1504               curl_easy_getinfo(curl, CURLINFO_OS_ERRNO, &oserrno);
1505               if(ECONNREFUSED == oserrno)
1506                 retry = RETRY_CONNREFUSED;
1507             }
1508             else if((CURLE_OK == result) ||
1509                     (config->failonerror &&
1510                      (CURLE_HTTP_RETURNED_ERROR == result))) {
1511               /* If it returned OK. _or_ failonerror was enabled and it
1512                  returned due to such an error, check for HTTP transient
1513                  errors to retry on. */
1514               char *effective_url = NULL;
1515               curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &effective_url);
1516               if(effective_url &&
1517                  checkprefix("http", effective_url)) {
1518                 /* This was HTTP(S) */
1519                 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response);
1520 
1521                 switch(response) {
1522                 case 500: /* Internal Server Error */
1523                 case 502: /* Bad Gateway */
1524                 case 503: /* Service Unavailable */
1525                 case 504: /* Gateway Timeout */
1526                   retry = RETRY_HTTP;
1527                   /*
1528                    * At this point, we have already written data to the output
1529                    * file (or terminal). If we write to a file, we must rewind
1530                    * or close/re-open the file so that the next attempt starts
1531                    * over from the beginning.
1532                    *
1533                    * TODO: similar action for the upload case. We might need
1534                    * to start over reading from a previous point if we have
1535                    * uploaded something when this was returned.
1536                    */
1537                   break;
1538                 }
1539               }
1540             } /* if CURLE_OK */
1541             else if(result) {
1542               curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response);
1543 
1544               if(response/100 == 4)
1545                 /*
1546                  * This is typically when the FTP server only allows a certain
1547                  * amount of users and we are not one of them.  All 4xx codes
1548                  * are transient.
1549                  */
1550                 retry = RETRY_FTP;
1551             }
1552 
1553             if(retry) {
1554               static const char * const m[]={
1555                 NULL,
1556                 "timeout",
1557                 "connection refused",
1558                 "HTTP error",
1559                 "FTP error"
1560               };
1561 
1562               warnf(config->global, "Transient problem: %s "
1563                     "Will retry in %ld seconds. "
1564                     "%ld retries left.\n",
1565                     m[retry], retry_sleep/1000L, retry_numretries);
1566 
1567               tool_go_sleep(retry_sleep);
1568               retry_numretries--;
1569               if(!config->retry_delay) {
1570                 retry_sleep *= 2;
1571                 if(retry_sleep > RETRY_SLEEP_MAX)
1572                   retry_sleep = RETRY_SLEEP_MAX;
1573               }
1574               if(outs.bytes && outs.filename && outs.stream) {
1575                 /* We have written data to a output file, we truncate file
1576                  */
1577                 if(!global->mute)
1578                   fprintf(global->errors, "Throwing away %"
1579                           CURL_FORMAT_CURL_OFF_T " bytes\n",
1580                           outs.bytes);
1581                 fflush(outs.stream);
1582                 /* truncate file at the position where we started appending */
1583 #ifdef HAVE_FTRUNCATE
1584                 if(ftruncate(fileno(outs.stream), outs.init)) {
1585                   /* when truncate fails, we can't just append as then we'll
1586                      create something strange, bail out */
1587                   if(!global->mute)
1588                     fprintf(global->errors,
1589                             "failed to truncate, exiting\n");
1590                   result = CURLE_WRITE_ERROR;
1591                   goto quit_urls;
1592                 }
1593                 /* now seek to the end of the file, the position where we
1594                    just truncated the file in a large file-safe way */
1595                 fseek(outs.stream, 0, SEEK_END);
1596 #else
1597                 /* ftruncate is not available, so just reposition the file
1598                    to the location we would have truncated it. This won't
1599                    work properly with large files on 32-bit systems, but
1600                    most of those will have ftruncate. */
1601                 fseek(outs.stream, (long)outs.init, SEEK_SET);
1602 #endif
1603                 outs.bytes = 0; /* clear for next round */
1604               }
1605               continue; /* curl_easy_perform loop */
1606             }
1607           } /* if retry_numretries */
1608           else if(metalink) {
1609             /* Metalink: Decide to try the next resource or
1610                not. Basically, we want to try the next resource if
1611                download was not successful. */
1612             long response;
1613             if(CURLE_OK == result) {
1614               /* TODO We want to try next resource when download was
1615                  not successful. How to know that? */
1616               char *effective_url = NULL;
1617               curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &effective_url);
1618               if(effective_url &&
1619                  curl_strnequal(effective_url, "http", 4)) {
1620                 /* This was HTTP(S) */
1621                 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response);
1622                 if(response != 200 && response != 206) {
1623                   metalink_next_res = 1;
1624                   fprintf(global->errors,
1625                           "Metalink: fetching (%s) from (%s) FAILED "
1626                           "(HTTP status code %d)\n",
1627                           mlfile->filename, this_url, response);
1628                 }
1629               }
1630             }
1631             else {
1632               metalink_next_res = 1;
1633               fprintf(global->errors,
1634                       "Metalink: fetching (%s) from (%s) FAILED (%s)\n",
1635                       mlfile->filename, this_url,
1636                       (errorbuffer[0]) ?
1637                       errorbuffer : curl_easy_strerror(result));
1638             }
1639           }
1640           if(metalink && !metalink_next_res)
1641             fprintf(global->errors, "Metalink: fetching (%s) from (%s) OK\n",
1642                     mlfile->filename, this_url);
1643 
1644           /* In all ordinary cases, just break out of loop here */
1645           break; /* curl_easy_perform loop */
1646 
1647         }
1648 
1649         if((global->progressmode == CURL_PROGRESS_BAR) &&
1650            progressbar.calls)
1651           /* if the custom progress bar has been displayed, we output a
1652              newline here */
1653           fputs("\n", progressbar.out);
1654 
1655         if(config->writeout)
1656           ourWriteOut(curl, &outs, config->writeout);
1657 
1658         if(config->writeenv)
1659           ourWriteEnv(curl);
1660 
1661         /*
1662         ** Code within this loop may jump directly here to label 'show_error'
1663         ** in order to display an error message for CURLcode stored in 'res'
1664         ** variable and exit loop once that necessary writing and cleanup
1665         ** in label 'quit_urls' has been done.
1666         */
1667 
1668         show_error:
1669 
1670 #ifdef __VMS
1671         if(is_vms_shell()) {
1672           /* VMS DCL shell behavior */
1673           if(!global->showerror)
1674             vms_show = VMSSTS_HIDE;
1675         }
1676         else
1677 #endif
1678         if(result && global->showerror) {
1679           fprintf(global->errors, "curl: (%d) %s\n", result, (errorbuffer[0]) ?
1680                   errorbuffer : curl_easy_strerror(result));
1681           if(result == CURLE_SSL_CACERT)
1682             fprintf(global->errors, "%s%s",
1683                     CURL_CA_CERT_ERRORMSG1, CURL_CA_CERT_ERRORMSG2);
1684         }
1685 
1686         /* Fall through comment to 'quit_urls' label */
1687 
1688         /*
1689         ** Upon error condition and always that a message has already been
1690         ** displayed, code within this loop may jump directly here to label
1691         ** 'quit_urls' otherwise it should jump to 'show_error' label above.
1692         **
1693         ** When 'res' variable is _not_ CURLE_OK loop will exit once that
1694         ** all code following 'quit_urls' has been executed. Otherwise it
1695         ** will loop to the beginning from where it may exit if there are
1696         ** no more urls left.
1697         */
1698 
1699         quit_urls:
1700 
1701         /* Set file extended attributes */
1702         if(!result && config->xattr && outs.fopened && outs.stream) {
1703           int rc = fwrite_xattr(curl, fileno(outs.stream));
1704           if(rc)
1705             warnf(config->global, "Error setting extended attributes: %s\n",
1706                   strerror(errno));
1707         }
1708 
1709         /* Close the file */
1710         if(outs.fopened && outs.stream) {
1711           int rc = fclose(outs.stream);
1712           if(!result && rc) {
1713             /* something went wrong in the writing process */
1714             result = CURLE_WRITE_ERROR;
1715             fprintf(global->errors, "(%d) Failed writing body\n", result);
1716           }
1717         }
1718         else if(!outs.s_isreg && outs.stream) {
1719           /* Dump standard stream buffered data */
1720           int rc = fflush(outs.stream);
1721           if(!result && rc) {
1722             /* something went wrong in the writing process */
1723             result = CURLE_WRITE_ERROR;
1724             fprintf(global->errors, "(%d) Failed writing body\n", result);
1725           }
1726         }
1727 
1728 #ifdef __AMIGA__
1729         if(!result && outs.s_isreg && outs.filename) {
1730           /* Set the url (up to 80 chars) as comment for the file */
1731           if(strlen(url) > 78)
1732             url[79] = '\0';
1733           SetComment(outs.filename, url);
1734         }
1735 #endif
1736 
1737 #ifdef HAVE_UTIME
1738         /* File time can only be set _after_ the file has been closed */
1739         if(!result && config->remote_time && outs.s_isreg && outs.filename) {
1740           /* Ask libcurl if we got a remote file time */
1741           long filetime = -1;
1742           curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
1743           if(filetime >= 0) {
1744             struct utimbuf times;
1745             times.actime = (time_t)filetime;
1746             times.modtime = (time_t)filetime;
1747             utime(outs.filename, &times); /* set the time we got */
1748           }
1749         }
1750 #endif
1751 
1752 #ifdef USE_METALINK
1753         if(!metalink && config->use_metalink && result == CURLE_OK) {
1754           int rv = parse_metalink(config, &outs, this_url);
1755           if(rv == 0)
1756             fprintf(config->global->errors, "Metalink: parsing (%s) OK\n",
1757                     this_url);
1758           else if(rv == -1)
1759             fprintf(config->global->errors, "Metalink: parsing (%s) FAILED\n",
1760                     this_url);
1761         }
1762         else if(metalink && result == CURLE_OK && !metalink_next_res) {
1763           int rv = metalink_check_hash(global, mlfile, outs.filename);
1764           if(rv == 0) {
1765             metalink_next_res = 1;
1766           }
1767         }
1768 #endif /* USE_METALINK */
1769 
1770         /* No more business with this output struct */
1771         if(outs.alloc_filename)
1772           Curl_safefree(outs.filename);
1773 #ifdef USE_METALINK
1774         if(outs.metalink_parser)
1775           metalink_parser_context_delete(outs.metalink_parser);
1776 #endif /* USE_METALINK */
1777         memset(&outs, 0, sizeof(struct OutStruct));
1778         hdrcbdata.outs = NULL;
1779 
1780         /* Free loop-local allocated memory and close loop-local opened fd */
1781 
1782         Curl_safefree(outfile);
1783         Curl_safefree(this_url);
1784 
1785         if(infdopen)
1786           close(infd);
1787 
1788         if(metalink) {
1789           /* Should exit if error is fatal. */
1790           if(is_fatal_error(result)) {
1791             break;
1792           }
1793           if(!metalink_next_res)
1794             break;
1795           mlres = mlres->next;
1796           if(mlres == NULL)
1797             /* TODO If metalink_next_res is 1 and mlres is NULL,
1798              * set res to error code
1799              */
1800             break;
1801         }
1802         else
1803         if(urlnum > 1) {
1804           /* when url globbing, exit loop upon critical error */
1805           if(is_fatal_error(result))
1806             break;
1807         }
1808         else if(result)
1809           /* when not url globbing, exit loop upon any error */
1810           break;
1811 
1812       } /* loop to the next URL */
1813 
1814       /* Free loop-local allocated memory */
1815 
1816       Curl_safefree(uploadfile);
1817 
1818       if(urls) {
1819         /* Free list of remaining URLs */
1820         glob_cleanup(urls);
1821         urls = NULL;
1822       }
1823 
1824       if(infilenum > 1) {
1825         /* when file globbing, exit loop upon critical error */
1826         if(is_fatal_error(result))
1827           break;
1828       }
1829       else if(result)
1830         /* when not file globbing, exit loop upon any error */
1831         break;
1832 
1833     } /* loop to the next globbed upload file */
1834 
1835     /* Free loop-local allocated memory */
1836 
1837     Curl_safefree(outfiles);
1838 
1839     if(inglob) {
1840       /* Free list of globbed upload files */
1841       glob_cleanup(inglob);
1842       inglob = NULL;
1843     }
1844 
1845     /* Free this URL node data without destroying the
1846        the node itself nor modifying next pointer. */
1847     Curl_safefree(urlnode->url);
1848     Curl_safefree(urlnode->outfile);
1849     Curl_safefree(urlnode->infile);
1850     urlnode->flags = 0;
1851 
1852     /*
1853     ** Bail out upon critical errors or --fail-early
1854     */
1855     if(is_fatal_error(result) || (result && global->fail_early))
1856       goto quit_curl;
1857 
1858   } /* for-loop through all URLs */
1859 
1860   /*
1861   ** Nested loops end here.
1862   */
1863 
1864   quit_curl:
1865 
1866   /* Reset the global config variables */
1867   global->noprogress = orig_noprogress;
1868   global->isatty = orig_isatty;
1869 
1870   /* Free function-local referenced allocated memory */
1871   Curl_safefree(httpgetfields);
1872 
1873   /* Free list of given URLs */
1874   clean_getout(config);
1875 
1876   hdrcbdata.heads = NULL;
1877 
1878   /* Close function-local opened file descriptors */
1879   if(heads.fopened && heads.stream)
1880     fclose(heads.stream);
1881 
1882   if(heads.alloc_filename)
1883     Curl_safefree(heads.filename);
1884 
1885   /* Release metalink related resources here */
1886   clean_metalink(config);
1887 
1888   return result;
1889 }
1890 
operate(struct GlobalConfig * config,int argc,argv_item_t argv[])1891 CURLcode operate(struct GlobalConfig *config, int argc, argv_item_t argv[])
1892 {
1893   CURLcode result = CURLE_OK;
1894 
1895   /* Setup proper locale from environment */
1896 #ifdef HAVE_SETLOCALE
1897   setlocale(LC_ALL, "");
1898 #endif
1899 
1900   /* Parse .curlrc if necessary */
1901   if((argc == 1) ||
1902      (!curl_strequal(argv[1], "-q") &&
1903       !curl_strequal(argv[1], "--disable"))) {
1904     parseconfig(NULL, config); /* ignore possible failure */
1905 
1906     /* If we had no arguments then make sure a url was specified in .curlrc */
1907     if((argc < 2) && (!config->first->url_list)) {
1908       helpf(config->errors, NULL);
1909       result = CURLE_FAILED_INIT;
1910     }
1911   }
1912 
1913   if(!result) {
1914     /* Parse the command line arguments */
1915     ParameterError res = parse_args(config, argc, argv);
1916     if(res) {
1917       result = CURLE_OK;
1918 
1919       /* Check if we were asked for the help */
1920       if(res == PARAM_HELP_REQUESTED)
1921         tool_help();
1922       /* Check if we were asked for the manual */
1923       else if(res == PARAM_MANUAL_REQUESTED)
1924         hugehelp();
1925       /* Check if we were asked for the version information */
1926       else if(res == PARAM_VERSION_INFO_REQUESTED)
1927         tool_version_info();
1928       /* Check if we were asked to list the SSL engines */
1929       else if(res == PARAM_ENGINES_REQUESTED)
1930         tool_list_engines(config->easy);
1931       else if(res == PARAM_LIBCURL_UNSUPPORTED_PROTOCOL)
1932         result = CURLE_UNSUPPORTED_PROTOCOL;
1933       else
1934         result = CURLE_FAILED_INIT;
1935     }
1936     else {
1937 #ifndef CURL_DISABLE_LIBCURL_OPTION
1938       if(config->libcurl) {
1939         /* Initialise the libcurl source output */
1940         result = easysrc_init();
1941       }
1942 #endif
1943 
1944       /* Perform the main operations */
1945       if(!result) {
1946         size_t count = 0;
1947         struct OperationConfig *operation = config->first;
1948 
1949         /* Get the required aguments for each operation */
1950         while(!result && operation) {
1951           result = get_args(operation, count++);
1952 
1953           operation = operation->next;
1954         }
1955 
1956         /* Set the current operation pointer */
1957         config->current = config->first;
1958 
1959         /* Perform each operation */
1960         while(!result && config->current) {
1961           result = operate_do(config, config->current);
1962 
1963           config->current = config->current->next;
1964         }
1965 
1966 #ifndef CURL_DISABLE_LIBCURL_OPTION
1967         if(config->libcurl) {
1968           /* Cleanup the libcurl source output */
1969           easysrc_cleanup();
1970 
1971           /* Dump the libcurl code if previously enabled */
1972           dumpeasysrc(config);
1973         }
1974 #endif
1975       }
1976       else
1977         helpf(config->errors, "out of memory\n");
1978     }
1979   }
1980 
1981   return result;
1982 }
1983