/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2016, Daniel Stenberg, , 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 https://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" #ifdef HAVE_FCNTL_H # include #endif #ifdef HAVE_UTIME_H # include #elif defined(HAVE_SYS_UTIME_H) # include #endif #ifdef HAVE_LOCALE_H # include #endif #ifdef __VMS # include #endif #include "strcase.h" #define ENABLE_CURLX_PRINTF /* use our own printf() functions */ #include "curlx.h" #include "tool_binmode.h" #include "tool_cfgable.h" #include "tool_cb_dbg.h" #include "tool_cb_hdr.h" #include "tool_cb_prg.h" #include "tool_cb_rea.h" #include "tool_cb_see.h" #include "tool_cb_wrt.h" #include "tool_dirhie.h" #include "tool_doswin.h" #include "tool_easysrc.h" #include "tool_getparam.h" #include "tool_helpers.h" #include "tool_homedir.h" #include "tool_libinfo.h" #include "tool_main.h" #include "tool_metalink.h" #include "tool_msgs.h" #include "tool_operate.h" #include "tool_operhlp.h" #include "tool_paramhlp.h" #include "tool_parsecfg.h" #include "tool_setopt.h" #include "tool_sleep.h" #include "tool_urlglob.h" #include "tool_util.h" #include "tool_writeenv.h" #include "tool_writeout.h" #include "tool_xattr.h" #include "tool_vms.h" #include "tool_help.h" #include "tool_hugehelp.h" #include "memdebug.h" /* keep this as LAST include */ #ifdef CURLDEBUG /* libcurl's debug builds provide an extra function */ CURLcode curl_easy_perform_ev(CURL *easy); #endif #define CURLseparator "--_curl_--" #ifndef O_BINARY /* since O_BINARY as used in bitmasks, setting it to zero makes it usable in source code but yet it doesn't ruin anything */ # define O_BINARY 0 #endif #define CURL_CA_CERT_ERRORMSG1 \ "More details here: https://curl.haxx.se/docs/sslcerts.html\n\n" \ "curl performs SSL certificate verification by default, " \ "using a \"bundle\"\n" \ " of Certificate Authority (CA) public keys (CA certs). If the default\n" \ " bundle file isn't adequate, you can specify an alternate file\n" \ " using the --cacert option.\n" #define CURL_CA_CERT_ERRORMSG2 \ "If this HTTPS server uses a certificate signed by a CA represented in\n" \ " the bundle, the certificate verification probably failed due to a\n" \ " problem with the certificate (it might be expired, or the name might\n" \ " not match the domain name in the URL).\n" \ "If you'd like to turn off curl's verification of the certificate, use\n" \ " the -k (or --insecure) option.\n" static bool is_fatal_error(CURLcode code) { switch(code) { /* TODO: Should CURLE_SSL_CACERT be included as critical error ? */ case CURLE_FAILED_INIT: case CURLE_OUT_OF_MEMORY: case CURLE_UNKNOWN_OPTION: case CURLE_FUNCTION_NOT_FOUND: case CURLE_BAD_FUNCTION_ARGUMENT: /* critical error */ return TRUE; default: break; } /* no error or not critical */ return FALSE; } #ifdef __VMS /* * get_vms_file_size does what it takes to get the real size of the file * * For fixed files, find out the size of the EOF block and adjust. * * For all others, have to read the entire file in, discarding the contents. * Most posted text files will be small, and binary files like zlib archives * and CD/DVD images should be either a STREAM_LF format or a fixed format. * */ static curl_off_t vms_realfilesize(const char *name, const struct_stat *stat_buf) { char buffer[8192]; curl_off_t count; int ret_stat; FILE * file; /* !checksrc! disable FOPENMODE 1 */ file = fopen(name, "r"); /* VMS */ if(file == NULL) { return 0; } count = 0; ret_stat = 1; while(ret_stat > 0) { ret_stat = fread(buffer, 1, sizeof(buffer), file); if(ret_stat != 0) count += ret_stat; } fclose(file); return count; } /* * * VmsSpecialSize checks to see if the stat st_size can be trusted and * if not to call a routine to get the correct size. * */ static curl_off_t VmsSpecialSize(const char *name, const struct_stat *stat_buf) { switch(stat_buf->st_fab_rfm) { case FAB$C_VAR: case FAB$C_VFC: return vms_realfilesize(name, stat_buf); break; default: return stat_buf->st_size; } } #endif /* __VMS */ static CURLcode operate_do(struct GlobalConfig *global, struct OperationConfig *config) { char errorbuffer[CURL_ERROR_SIZE]; struct ProgressData progressbar; struct getout *urlnode; struct HdrCbData hdrcbdata; struct OutStruct heads; metalinkfile *mlfile_last = NULL; CURL *curl = config->easy; char *httpgetfields = NULL; CURLcode result = CURLE_OK; unsigned long li; bool capath_from_env; /* Save the values of noprogress and isatty to restore them later on */ bool orig_noprogress = global->noprogress; bool orig_isatty = global->isatty; errorbuffer[0] = '\0'; /* default headers output stream is stdout */ memset(&hdrcbdata, 0, sizeof(struct HdrCbData)); memset(&heads, 0, sizeof(struct OutStruct)); heads.stream = stdout; heads.config = config; /* ** Beyond this point no return'ing from this function allowed. ** Jump to label 'quit_curl' in order to abandon this function ** from outside of nested loops further down below. */ /* Check we have a url */ if(!config->url_list || !config->url_list->url) { helpf(global->errors, "no URL specified!\n"); result = CURLE_FAILED_INIT; goto quit_curl; } /* On WIN32 we can't set the path to curl-ca-bundle.crt * at compile time. So we look here for the file in two ways: * 1: look at the environment variable CURL_CA_BUNDLE for a path * 2: if #1 isn't found, use the windows API function SearchPath() * to find it along the app's path (includes app's dir and CWD) * * We support the environment variable thing for non-Windows platforms * too. Just for the sake of it. */ capath_from_env = false; if(!config->cacert && !config->capath && !config->insecure_ok) { char *env; env = curlx_getenv("CURL_CA_BUNDLE"); if(env) { config->cacert = strdup(env); if(!config->cacert) { curl_free(env); helpf(global->errors, "out of memory\n"); result = CURLE_OUT_OF_MEMORY; goto quit_curl; } } else { env = curlx_getenv("SSL_CERT_DIR"); if(env) { config->capath = strdup(env); if(!config->capath) { curl_free(env); helpf(global->errors, "out of memory\n"); result = CURLE_OUT_OF_MEMORY; goto quit_curl; } capath_from_env = true; } else { env = curlx_getenv("SSL_CERT_FILE"); if(env) { config->cacert = strdup(env); if(!config->cacert) { curl_free(env); helpf(global->errors, "out of memory\n"); result = CURLE_OUT_OF_MEMORY; goto quit_curl; } } } } if(env) curl_free(env); #ifdef WIN32 else { result = FindWin32CACert(config, "curl-ca-bundle.crt"); if(result) goto quit_curl; } #endif } if(config->postfields) { if(config->use_httpget) { /* Use the postfields data for a http get */ httpgetfields = strdup(config->postfields); Curl_safefree(config->postfields); if(!httpgetfields) { helpf(global->errors, "out of memory\n"); result = CURLE_OUT_OF_MEMORY; goto quit_curl; } if(SetHTTPrequest(config, (config->no_body?HTTPREQ_HEAD:HTTPREQ_GET), &config->httpreq)) { result = CURLE_FAILED_INIT; goto quit_curl; } } else { if(SetHTTPrequest(config, HTTPREQ_SIMPLEPOST, &config->httpreq)) { result = CURLE_FAILED_INIT; goto quit_curl; } } } /* Single header file for all URLs */ if(config->headerfile) { /* open file for output: */ if(strcmp(config->headerfile, "-")) { FILE *newfile = fopen(config->headerfile, "wb"); if(!newfile) { warnf(config->global, "Failed to open %s\n", config->headerfile); result = CURLE_WRITE_ERROR; goto quit_curl; } else { heads.filename = config->headerfile; heads.s_isreg = TRUE; heads.fopened = TRUE; heads.stream = newfile; } } else { /* always use binary mode for protocol header output */ set_binmode(heads.stream); } } /* ** Nested loops start here. */ /* loop through the list of given URLs */ for(urlnode = config->url_list; urlnode; urlnode = urlnode->next) { unsigned long up; /* upload file counter within a single upload glob */ char *infiles; /* might be a glob pattern */ char *outfiles; unsigned long infilenum; URLGlob *inglob; int metalink = 0; /* nonzero for metalink download. */ metalinkfile *mlfile; metalink_resource *mlres; outfiles = NULL; infilenum = 1; inglob = NULL; if(urlnode->flags & GETOUT_METALINK) { metalink = 1; if(mlfile_last == NULL) { mlfile_last = config->metalinkfile_list; } mlfile = mlfile_last; mlfile_last = mlfile_last->next; mlres = mlfile->resource; } else { mlfile = NULL; mlres = NULL; } /* urlnode->url is the full URL (it might be NULL) */ if(!urlnode->url) { /* This node has no URL. Free node data without destroying the node itself nor modifying next pointer and continue to next */ Curl_safefree(urlnode->outfile); Curl_safefree(urlnode->infile); urlnode->flags = 0; continue; /* next URL please */ } /* save outfile pattern before expansion */ if(urlnode->outfile) { outfiles = strdup(urlnode->outfile); if(!outfiles) { helpf(global->errors, "out of memory\n"); result = CURLE_OUT_OF_MEMORY; break; } } infiles = urlnode->infile; if(!config->globoff && infiles) { /* Unless explicitly shut off */ result = glob_url(&inglob, infiles, &infilenum, global->showerror?global->errors:NULL); if(result) { Curl_safefree(outfiles); break; } } /* Here's the loop for uploading multiple files within the same single globbed string. If no upload, we enter the loop once anyway. */ for(up = 0 ; up < infilenum; up++) { char *uploadfile; /* a single file, never a glob */ int separator; URLGlob *urls; unsigned long urlnum; uploadfile = NULL; urls = NULL; urlnum = 0; if(!up && !infiles) Curl_nop_stmt; else { if(inglob) { result = glob_next_url(&uploadfile, inglob); if(result == CURLE_OUT_OF_MEMORY) helpf(global->errors, "out of memory\n"); } else if(!up) { uploadfile = strdup(infiles); if(!uploadfile) { helpf(global->errors, "out of memory\n"); result = CURLE_OUT_OF_MEMORY; } } else uploadfile = NULL; if(!uploadfile) break; } if(metalink) { /* For Metalink download, we don't use glob. Instead we use the number of resources as urlnum. */ urlnum = count_next_metalink_resource(mlfile); } else if(!config->globoff) { /* Unless explicitly shut off, we expand '{...}' and '[...]' expressions and return total number of URLs in pattern set */ result = glob_url(&urls, urlnode->url, &urlnum, global->showerror?global->errors:NULL); if(result) { Curl_safefree(uploadfile); break; } } else urlnum = 1; /* without globbing, this is a single URL */ /* if multiple files extracted to stdout, insert separators! */ separator= ((!outfiles || !strcmp(outfiles, "-")) && urlnum > 1); /* Here's looping around each globbed URL */ for(li = 0 ; li < urlnum; li++) { int infd; bool infdopen; char *outfile; struct OutStruct outs; struct InStruct input; struct timeval retrystart; curl_off_t uploadfilesize; long retry_numretries; long retry_sleep_default; long retry_sleep; char *this_url = NULL; int metalink_next_res = 0; outfile = NULL; infdopen = FALSE; infd = STDIN_FILENO; uploadfilesize = -1; /* -1 means unknown */ /* default output stream is stdout */ memset(&outs, 0, sizeof(struct OutStruct)); outs.stream = stdout; outs.config = config; if(metalink) { /* For Metalink download, use name in Metalink file as filename. */ outfile = strdup(mlfile->filename); if(!outfile) { result = CURLE_OUT_OF_MEMORY; goto show_error; } this_url = strdup(mlres->url); if(!this_url) { result = CURLE_OUT_OF_MEMORY; goto show_error; } } else { if(urls) { result = glob_next_url(&this_url, urls); if(result) goto show_error; } else if(!li) { this_url = strdup(urlnode->url); if(!this_url) { result = CURLE_OUT_OF_MEMORY; goto show_error; } } else this_url = NULL; if(!this_url) break; if(outfiles) { outfile = strdup(outfiles); if(!outfile) { result = CURLE_OUT_OF_MEMORY; goto show_error; } } } if(((urlnode->flags&GETOUT_USEREMOTE) || (outfile && strcmp("-", outfile))) && (metalink || !config->use_metalink)) { /* * We have specified a file name to store the result in, or we have * decided we want to use the remote file name. */ if(!outfile) { /* extract the file name from the URL */ result = get_url_file_name(&outfile, this_url); if(result) goto show_error; if(!*outfile && !config->content_disposition) { helpf(global->errors, "Remote file name has no length!\n"); result = CURLE_WRITE_ERROR; goto quit_urls; } } else if(urls) { /* fill '#1' ... '#9' terms from URL pattern */ char *storefile = outfile; result = glob_match_url(&outfile, storefile, urls); Curl_safefree(storefile); if(result) { /* bad globbing */ warnf(config->global, "bad output glob!\n"); goto quit_urls; } } /* Create the directory hierarchy, if not pre-existent to a multiple file output call */ if(config->create_dirs || metalink) { result = create_dir_hierarchy(outfile, global->errors); /* create_dir_hierarchy shows error upon CURLE_WRITE_ERROR */ if(result == CURLE_WRITE_ERROR) goto quit_urls; if(result) { goto show_error; } } if((urlnode->flags & GETOUT_USEREMOTE) && config->content_disposition) { /* Our header callback MIGHT set the filename */ DEBUGASSERT(!outs.filename); } if(config->resume_from_current) { /* We're told to continue from where we are now. Get the size of the file as it is now and open it for append instead */ struct_stat fileinfo; /* VMS -- Danger, the filesize is only valid for stream files */ if(0 == stat(outfile, &fileinfo)) /* set offset to current file size: */ config->resume_from = fileinfo.st_size; else /* let offset be 0 */ config->resume_from = 0; } if(config->resume_from) { #ifdef __VMS /* open file for output, forcing VMS output format into stream mode which is needed for stat() call above to always work. */ FILE *file = fopen(outfile, config->resume_from?"ab":"wb", "ctx=stm", "rfm=stmlf", "rat=cr", "mrs=0"); #else /* open file for output: */ FILE *file = fopen(outfile, config->resume_from?"ab":"wb"); #endif if(!file) { helpf(global->errors, "Can't open '%s'!\n", outfile); result = CURLE_WRITE_ERROR; goto quit_urls; } outs.fopened = TRUE; outs.stream = file; outs.init = config->resume_from; } else { outs.stream = NULL; /* open when needed */ } outs.filename = outfile; outs.s_isreg = TRUE; } if(uploadfile && !stdin_upload(uploadfile)) { /* * We have specified a file to upload and it isn't "-". */ struct_stat fileinfo; this_url = add_file_name_to_url(curl, this_url, uploadfile); if(!this_url) { result = CURLE_OUT_OF_MEMORY; goto show_error; } /* VMS Note: * * Reading binary from files can be a problem... Only FIXED, VAR * etc WITHOUT implied CC will work Others need a \n appended to a * line * * - Stat gives a size but this is UNRELIABLE in VMS As a f.e. a * fixed file with implied CC needs to have a byte added for every * record processed, this can by derived from Filesize & recordsize * for VARiable record files the records need to be counted! for * every record add 1 for linefeed and subtract 2 for the record * header for VARIABLE header files only the bare record data needs * to be considered with one appended if implied CC */ #ifdef __VMS /* Calculate the real upload site for VMS */ infd = -1; if(stat(uploadfile, &fileinfo) == 0) { fileinfo.st_size = VmsSpecialSize(uploadfile, &fileinfo); switch(fileinfo.st_fab_rfm) { case FAB$C_VAR: case FAB$C_VFC: case FAB$C_STMCR: infd = open(uploadfile, O_RDONLY | O_BINARY); break; default: infd = open(uploadfile, O_RDONLY | O_BINARY, "rfm=stmlf", "ctx=stm"); } } if(infd == -1) #else infd = open(uploadfile, O_RDONLY | O_BINARY); if((infd == -1) || fstat(infd, &fileinfo)) #endif { helpf(global->errors, "Can't open '%s'!\n", uploadfile); if(infd != -1) { close(infd); infd = STDIN_FILENO; } result = CURLE_READ_ERROR; goto quit_urls; } infdopen = TRUE; /* we ignore file size for char/block devices, sockets, etc. */ if(S_ISREG(fileinfo.st_mode)) uploadfilesize = fileinfo.st_size; } else if(uploadfile && stdin_upload(uploadfile)) { /* count to see if there are more than one auth bit set in the authtype field */ int authbits = 0; int bitcheck = 0; while(bitcheck < 32) { if(config->authtype & (1UL << bitcheck++)) { authbits++; if(authbits > 1) { /* more than one, we're done! */ break; } } } /* * If the user has also selected --anyauth or --proxy-anyauth * we should warn him/her. */ if(config->proxyanyauth || (authbits>1)) { warnf(config->global, "Using --anyauth or --proxy-anyauth with upload from stdin" " involves a big risk of it not working. Use a temporary" " file or a fixed auth type instead!\n"); } DEBUGASSERT(infdopen == FALSE); DEBUGASSERT(infd == STDIN_FILENO); set_binmode(stdin); if(!strcmp(uploadfile, ".")) { if(curlx_nonblock((curl_socket_t)infd, TRUE) < 0) warnf(config->global, "fcntl failed on fd=%d: %s\n", infd, strerror(errno)); } } if(uploadfile && config->resume_from_current) config->resume_from = -1; /* -1 will then force get-it-yourself */ if(output_expected(this_url, uploadfile) && outs.stream && isatty(fileno(outs.stream))) /* we send the output to a tty, therefore we switch off the progress meter */ global->noprogress = global->isatty = TRUE; else { /* progress meter is per download, so restore config values */ global->noprogress = orig_noprogress; global->isatty = orig_isatty; } if(urlnum > 1 && !global->mute) { fprintf(global->errors, "\n[%lu/%lu]: %s --> %s\n", li+1, urlnum, this_url, outfile ? outfile : ""); if(separator) printf("%s%s\n", CURLseparator, this_url); } if(httpgetfields) { char *urlbuffer; /* Find out whether the url contains a file name */ const char *pc = strstr(this_url, "://"); char sep = '?'; if(pc) pc += 3; else pc = this_url; pc = strrchr(pc, '/'); /* check for a slash */ if(pc) { /* there is a slash present in the URL */ if(strchr(pc, '?')) /* Ouch, there's already a question mark in the URL string, we then append the data with an ampersand separator instead! */ sep='&'; } /* * Then append ? followed by the get fields to the url. */ if(pc) urlbuffer = aprintf("%s%c%s", this_url, sep, httpgetfields); else /* Append / before the ? to create a well-formed url if the url contains a hostname only */ urlbuffer = aprintf("%s/?%s", this_url, httpgetfields); if(!urlbuffer) { result = CURLE_OUT_OF_MEMORY; goto show_error; } Curl_safefree(this_url); /* free previous URL */ this_url = urlbuffer; /* use our new URL instead! */ } if(!global->errors) global->errors = stderr; if((!outfile || !strcmp(outfile, "-")) && !config->use_ascii) { /* We get the output to stdout and we have not got the ASCII/text flag, then set stdout to be binary */ set_binmode(stdout); } if(!config->tcp_nodelay) my_setopt(curl, CURLOPT_TCP_NODELAY, 0L); if(config->tcp_fastopen) my_setopt(curl, CURLOPT_TCP_FASTOPEN, 1L); /* where to store */ my_setopt(curl, CURLOPT_WRITEDATA, &outs); my_setopt(curl, CURLOPT_INTERLEAVEDATA, &outs); if(metalink || !config->use_metalink) /* what call to write */ my_setopt(curl, CURLOPT_WRITEFUNCTION, tool_write_cb); #ifdef USE_METALINK else /* Set Metalink specific write callback function to parse XML data progressively. */ my_setopt(curl, CURLOPT_WRITEFUNCTION, metalink_write_cb); #endif /* USE_METALINK */ /* for uploads */ input.fd = infd; input.config = config; /* Note that if CURLOPT_READFUNCTION is fread (the default), then * lib/telnet.c will Curl_poll() on the input file descriptor * rather then calling the READFUNCTION at regular intervals. * The circumstances in which it is preferable to enable this * behaviour, by omitting to set the READFUNCTION & READDATA options, * have not been determined. */ my_setopt(curl, CURLOPT_READDATA, &input); /* what call to read */ my_setopt(curl, CURLOPT_READFUNCTION, tool_read_cb); /* in 7.18.0, the CURLOPT_SEEKFUNCTION/DATA pair is taking over what CURLOPT_IOCTLFUNCTION/DATA pair previously provided for seeking */ my_setopt(curl, CURLOPT_SEEKDATA, &input); my_setopt(curl, CURLOPT_SEEKFUNCTION, tool_seek_cb); if(config->recvpersecond) /* tell libcurl to use a smaller sized buffer as it allows us to make better sleeps! 7.9.9 stuff! */ my_setopt(curl, CURLOPT_BUFFERSIZE, (long)config->recvpersecond); /* size of uploaded file: */ if(uploadfilesize != -1) my_setopt(curl, CURLOPT_INFILESIZE_LARGE, uploadfilesize); my_setopt_str(curl, CURLOPT_URL, this_url); /* what to fetch */ my_setopt(curl, CURLOPT_NOPROGRESS, global->noprogress?1L:0L); if(config->no_body) { my_setopt(curl, CURLOPT_NOBODY, 1L); my_setopt(curl, CURLOPT_HEADER, 1L); } /* If --metalink is used, we ignore --include (headers in output) option because mixing headers to the body will confuse XML parser and/or hash check will fail. */ else if(!config->use_metalink) my_setopt(curl, CURLOPT_HEADER, config->include_headers?1L:0L); if(config->oauth_bearer) my_setopt_str(curl, CURLOPT_XOAUTH2_BEARER, config->oauth_bearer); #if !defined(CURL_DISABLE_PROXY) { /* TODO: Make this a run-time check instead of compile-time one. */ my_setopt_str(curl, CURLOPT_PROXY, config->proxy); /* new in libcurl 7.5 */ if(config->proxy) my_setopt_enum(curl, CURLOPT_PROXYTYPE, config->proxyver); my_setopt_str(curl, CURLOPT_PROXYUSERPWD, config->proxyuserpwd); /* new in libcurl 7.3 */ my_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, config->proxytunnel?1L:0L); /* new in libcurl 7.52.0 */ if(config->preproxy) my_setopt_str(curl, CURLOPT_PRE_PROXY, config->preproxy); /* new in libcurl 7.10.6 */ if(config->proxyanyauth) my_setopt_bitmask(curl, CURLOPT_PROXYAUTH, (long)CURLAUTH_ANY); else if(config->proxynegotiate) my_setopt_bitmask(curl, CURLOPT_PROXYAUTH, (long)CURLAUTH_GSSNEGOTIATE); else if(config->proxyntlm) my_setopt_bitmask(curl, CURLOPT_PROXYAUTH, (long)CURLAUTH_NTLM); else if(config->proxydigest) my_setopt_bitmask(curl, CURLOPT_PROXYAUTH, (long)CURLAUTH_DIGEST); else if(config->proxybasic) my_setopt_bitmask(curl, CURLOPT_PROXYAUTH, (long)CURLAUTH_BASIC); /* new in libcurl 7.19.4 */ my_setopt_str(curl, CURLOPT_NOPROXY, config->noproxy); } #endif my_setopt(curl, CURLOPT_FAILONERROR, config->failonerror?1L:0L); my_setopt(curl, CURLOPT_UPLOAD, uploadfile?1L:0L); my_setopt(curl, CURLOPT_DIRLISTONLY, config->dirlistonly?1L:0L); my_setopt(curl, CURLOPT_APPEND, config->ftp_append?1L:0L); if(config->netrc_opt) my_setopt_enum(curl, CURLOPT_NETRC, (long)CURL_NETRC_OPTIONAL); else if(config->netrc || config->netrc_file) my_setopt_enum(curl, CURLOPT_NETRC, (long)CURL_NETRC_REQUIRED); else my_setopt_enum(curl, CURLOPT_NETRC, (long)CURL_NETRC_IGNORED); if(config->netrc_file) my_setopt_str(curl, CURLOPT_NETRC_FILE, config->netrc_file); my_setopt(curl, CURLOPT_TRANSFERTEXT, config->use_ascii?1L:0L); if(config->login_options) my_setopt_str(curl, CURLOPT_LOGIN_OPTIONS, config->login_options); my_setopt_str(curl, CURLOPT_USERPWD, config->userpwd); my_setopt_str(curl, CURLOPT_RANGE, config->range); my_setopt(curl, CURLOPT_ERRORBUFFER, errorbuffer); my_setopt(curl, CURLOPT_TIMEOUT_MS, (long)(config->timeout * 1000)); if(built_in_protos & CURLPROTO_HTTP) { long postRedir = 0; my_setopt(curl, CURLOPT_FOLLOWLOCATION, config->followlocation?1L:0L); my_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, config->unrestricted_auth?1L:0L); switch(config->httpreq) { case HTTPREQ_SIMPLEPOST: my_setopt_str(curl, CURLOPT_POSTFIELDS, config->postfields); my_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE, config->postfieldsize); break; case HTTPREQ_FORMPOST: my_setopt_httppost(curl, CURLOPT_HTTPPOST, config->httppost); break; default: break; } my_setopt_str(curl, CURLOPT_REFERER, config->referer); my_setopt(curl, CURLOPT_AUTOREFERER, config->autoreferer?1L:0L); my_setopt_str(curl, CURLOPT_USERAGENT, config->useragent); my_setopt_slist(curl, CURLOPT_HTTPHEADER, config->headers); /* new in libcurl 7.36.0 */ if(config->proxyheaders) { my_setopt_slist(curl, CURLOPT_PROXYHEADER, config->proxyheaders); my_setopt(curl, CURLOPT_HEADEROPT, CURLHEADER_SEPARATE); } /* new in libcurl 7.5 */ my_setopt(curl, CURLOPT_MAXREDIRS, config->maxredirs); if(config->httpversion) my_setopt_enum(curl, CURLOPT_HTTP_VERSION, config->httpversion); else if(curlinfo->features & CURL_VERSION_HTTP2) { my_setopt_enum(curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2TLS); } /* new in libcurl 7.10.6 (default is Basic) */ if(config->authtype) my_setopt_bitmask(curl, CURLOPT_HTTPAUTH, (long)config->authtype); /* curl 7.19.1 (the 301 version existed in 7.18.2), 303 was added in 7.26.0 */ if(config->post301) postRedir |= CURL_REDIR_POST_301; if(config->post302) postRedir |= CURL_REDIR_POST_302; if(config->post303) postRedir |= CURL_REDIR_POST_303; my_setopt(curl, CURLOPT_POSTREDIR, postRedir); /* new in libcurl 7.21.6 */ if(config->encoding) my_setopt_str(curl, CURLOPT_ACCEPT_ENCODING, ""); /* new in libcurl 7.21.6 */ if(config->tr_encoding) my_setopt(curl, CURLOPT_TRANSFER_ENCODING, 1L); } /* (built_in_protos & CURLPROTO_HTTP) */ my_setopt_str(curl, CURLOPT_FTPPORT, config->ftpport); my_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, config->low_speed_limit); my_setopt(curl, CURLOPT_LOW_SPEED_TIME, config->low_speed_time); my_setopt(curl, CURLOPT_MAX_SEND_SPEED_LARGE, config->sendpersecond); my_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE, config->recvpersecond); if(config->use_resume) my_setopt(curl, CURLOPT_RESUME_FROM_LARGE, config->resume_from); else my_setopt(curl, CURLOPT_RESUME_FROM_LARGE, CURL_OFF_T_C(0)); my_setopt_str(curl, CURLOPT_KEYPASSWD, config->key_passwd); my_setopt_str(curl, CURLOPT_PROXY_KEYPASSWD, config->proxy_key_passwd); if(built_in_protos & (CURLPROTO_SCP|CURLPROTO_SFTP)) { /* SSH and SSL private key uses same command-line option */ /* new in libcurl 7.16.1 */ my_setopt_str(curl, CURLOPT_SSH_PRIVATE_KEYFILE, config->key); /* new in libcurl 7.16.1 */ my_setopt_str(curl, CURLOPT_SSH_PUBLIC_KEYFILE, config->pubkey); /* new in libcurl 7.17.1: SSH host key md5 checking allows us to fail if we are not talking to who we think we should */ my_setopt_str(curl, CURLOPT_SSH_HOST_PUBLIC_KEY_MD5, config->hostpubmd5); } if(config->cacert) my_setopt_str(curl, CURLOPT_CAINFO, config->cacert); if(config->proxy_cacert) my_setopt_str(curl, CURLOPT_PROXY_CAINFO, config->proxy_cacert); if(config->capath) { result = res_setopt_str(curl, CURLOPT_CAPATH, config->capath); if(result == CURLE_NOT_BUILT_IN) { warnf(config->global, "ignoring %s, not supported by libcurl\n", capath_from_env? "SSL_CERT_DIR environment variable":"--capath"); } else if(result) goto show_error; } if(config->proxy_capath) my_setopt_str(curl, CURLOPT_PROXY_CAPATH, config->proxy_capath); else if(config->capath) /* CURLOPT_PROXY_CAPATH default is capath */ my_setopt_str(curl, CURLOPT_PROXY_CAPATH, config->capath); if(config->crlfile) my_setopt_str(curl, CURLOPT_CRLFILE, config->crlfile); if(config->proxy_crlfile) my_setopt_str(curl, CURLOPT_PROXY_CRLFILE, config->proxy_crlfile); else if(config->crlfile) /* CURLOPT_PROXY_CRLFILE default is crlfile */ my_setopt_str(curl, CURLOPT_PROXY_CRLFILE, config->crlfile); if(config->pinnedpubkey) my_setopt_str(curl, CURLOPT_PINNEDPUBLICKEY, config->pinnedpubkey); if(curlinfo->features & CURL_VERSION_SSL) { my_setopt_str(curl, CURLOPT_SSLCERT, config->cert); my_setopt_str(curl, CURLOPT_PROXY_SSLCERT, config->proxy_cert); my_setopt_str(curl, CURLOPT_SSLCERTTYPE, config->cert_type); my_setopt_str(curl, CURLOPT_PROXY_SSLCERTTYPE, config->proxy_cert_type); my_setopt_str(curl, CURLOPT_SSLKEY, config->key); my_setopt_str(curl, CURLOPT_PROXY_SSLKEY, config->proxy_key); my_setopt_str(curl, CURLOPT_SSLKEYTYPE, config->key_type); my_setopt_str(curl, CURLOPT_PROXY_SSLKEYTYPE, config->proxy_key_type); if(config->insecure_ok) { my_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L); my_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L); } else { my_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L); /* libcurl default is strict verifyhost -> 2L */ /* my_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2L); */ } if(config->proxy_insecure_ok) { my_setopt(curl, CURLOPT_PROXY_SSL_VERIFYPEER, 0L); my_setopt(curl, CURLOPT_PROXY_SSL_VERIFYHOST, 0L); } else { my_setopt(curl, CURLOPT_PROXY_SSL_VERIFYPEER, 1L); } if(config->verifystatus) my_setopt(curl, CURLOPT_SSL_VERIFYSTATUS, 1L); if(config->falsestart) my_setopt(curl, CURLOPT_SSL_FALSESTART, 1L); my_setopt_enum(curl, CURLOPT_SSLVERSION, config->ssl_version); my_setopt_enum(curl, CURLOPT_PROXY_SSLVERSION, config->proxy_ssl_version); } if(config->path_as_is) my_setopt(curl, CURLOPT_PATH_AS_IS, 1L); if(built_in_protos & (CURLPROTO_SCP|CURLPROTO_SFTP)) { if(!config->insecure_ok) { char *home; char *file; result = CURLE_OUT_OF_MEMORY; home = homedir(); if(home) { file = aprintf("%s/%sssh/known_hosts", home, DOT_CHAR); if(file) { /* new in curl 7.19.6 */ result = res_setopt_str(curl, CURLOPT_SSH_KNOWNHOSTS, file); curl_free(file); if(result == CURLE_UNKNOWN_OPTION) /* libssh2 version older than 1.1.1 */ result = CURLE_OK; } Curl_safefree(home); } if(result) goto show_error; } } if(config->no_body || config->remote_time) { /* no body or use remote time */ my_setopt(curl, CURLOPT_FILETIME, 1L); } my_setopt(curl, CURLOPT_CRLF, config->crlf?1L:0L); my_setopt_slist(curl, CURLOPT_QUOTE, config->quote); my_setopt_slist(curl, CURLOPT_POSTQUOTE, config->postquote); my_setopt_slist(curl, CURLOPT_PREQUOTE, config->prequote); #if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES) if(config->cookie) my_setopt_str(curl, CURLOPT_COOKIE, config->cookie); if(config->cookiefile) my_setopt_str(curl, CURLOPT_COOKIEFILE, config->cookiefile); /* new in libcurl 7.9 */ if(config->cookiejar) my_setopt_str(curl, CURLOPT_COOKIEJAR, config->cookiejar); /* new in libcurl 7.9.7 */ my_setopt(curl, CURLOPT_COOKIESESSION, config->cookiesession?1L:0L); #else if(config->cookie || config->cookiefile || config->cookiejar) { warnf(config->global, "cookie option(s) used even though cookie " "support is disabled!\n"); return CURLE_NOT_BUILT_IN; } #endif my_setopt_enum(curl, CURLOPT_TIMECONDITION, (long)config->timecond); my_setopt(curl, CURLOPT_TIMEVALUE, (long)config->condtime); my_setopt_str(curl, CURLOPT_CUSTOMREQUEST, config->customrequest); customrequest_helper(config, config->httpreq, config->customrequest); my_setopt(curl, CURLOPT_STDERR, global->errors); /* three new ones in libcurl 7.3: */ my_setopt_str(curl, CURLOPT_INTERFACE, config->iface); my_setopt_str(curl, CURLOPT_KRBLEVEL, config->krblevel); progressbarinit(&progressbar, config); if((global->progressmode == CURL_PROGRESS_BAR) && !global->noprogress && !global->mute) { /* we want the alternative style, then we have to implement it ourselves! */ my_setopt(curl, CURLOPT_XFERINFOFUNCTION, tool_progress_cb); my_setopt(curl, CURLOPT_XFERINFODATA, &progressbar); } /* new in libcurl 7.24.0: */ if(config->dns_servers) my_setopt_str(curl, CURLOPT_DNS_SERVERS, config->dns_servers); /* new in libcurl 7.33.0: */ if(config->dns_interface) my_setopt_str(curl, CURLOPT_DNS_INTERFACE, config->dns_interface); if(config->dns_ipv4_addr) my_setopt_str(curl, CURLOPT_DNS_LOCAL_IP4, config->dns_ipv4_addr); if(config->dns_ipv6_addr) my_setopt_str(curl, CURLOPT_DNS_LOCAL_IP6, config->dns_ipv6_addr); /* new in libcurl 7.6.2: */ my_setopt_slist(curl, CURLOPT_TELNETOPTIONS, config->telnet_options); /* new in libcurl 7.7: */ my_setopt_str(curl, CURLOPT_RANDOM_FILE, config->random_file); my_setopt_str(curl, CURLOPT_EGDSOCKET, config->egd_file); my_setopt(curl, CURLOPT_CONNECTTIMEOUT_MS, (long)(config->connecttimeout * 1000)); if(config->cipher_list) my_setopt_str(curl, CURLOPT_SSL_CIPHER_LIST, config->cipher_list); if(config->proxy_cipher_list) my_setopt_str(curl, CURLOPT_PROXY_SSL_CIPHER_LIST, config->proxy_cipher_list); /* new in libcurl 7.9.2: */ if(config->disable_epsv) /* disable it */ my_setopt(curl, CURLOPT_FTP_USE_EPSV, 0L); /* new in libcurl 7.10.5 */ if(config->disable_eprt) /* disable it */ my_setopt(curl, CURLOPT_FTP_USE_EPRT, 0L); if(global->tracetype != TRACE_NONE) { my_setopt(curl, CURLOPT_DEBUGFUNCTION, tool_debug_cb); my_setopt(curl, CURLOPT_DEBUGDATA, config); my_setopt(curl, CURLOPT_VERBOSE, 1L); } /* new in curl 7.9.3 */ if(config->engine) { result = res_setopt_str(curl, CURLOPT_SSLENGINE, config->engine); if(result) goto show_error; } /* new in curl 7.10.7, extended in 7.19.4. Modified to use CREATE_DIR_RETRY in 7.49.0 */ my_setopt(curl, CURLOPT_FTP_CREATE_MISSING_DIRS, (long)(config->ftp_create_dirs? CURLFTP_CREATE_DIR_RETRY: CURLFTP_CREATE_DIR_NONE)); /* new in curl 7.10.8 */ if(config->max_filesize) my_setopt(curl, CURLOPT_MAXFILESIZE_LARGE, config->max_filesize); if(4 == config->ip_version) my_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); else if(6 == config->ip_version) my_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6); else my_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_WHATEVER); /* new in curl 7.15.5 */ if(config->ftp_ssl_reqd) my_setopt_enum(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_ALL); /* new in curl 7.11.0 */ else if(config->ftp_ssl) my_setopt_enum(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_TRY); /* new in curl 7.16.0 */ else if(config->ftp_ssl_control) my_setopt_enum(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_CONTROL); /* new in curl 7.16.1 */ if(config->ftp_ssl_ccc) my_setopt_enum(curl, CURLOPT_FTP_SSL_CCC, (long)config->ftp_ssl_ccc_mode); /* new in curl 7.19.4 */ if(config->socks5_gssapi_nec) my_setopt_str(curl, CURLOPT_SOCKS5_GSSAPI_NEC, config->socks5_gssapi_nec); /* new in curl 7.43.0 */ if(config->proxy_service_name) my_setopt_str(curl, CURLOPT_PROXY_SERVICE_NAME, config->proxy_service_name); /* new in curl 7.43.0 */ if(config->service_name) my_setopt_str(curl, CURLOPT_SERVICE_NAME, config->service_name); /* curl 7.13.0 */ my_setopt_str(curl, CURLOPT_FTP_ACCOUNT, config->ftp_account); my_setopt(curl, CURLOPT_IGNORE_CONTENT_LENGTH, config->ignorecl?1L:0L); /* curl 7.14.2 */ my_setopt(curl, CURLOPT_FTP_SKIP_PASV_IP, config->ftp_skip_ip?1L:0L); /* curl 7.15.1 */ my_setopt(curl, CURLOPT_FTP_FILEMETHOD, (long)config->ftp_filemethod); /* curl 7.15.2 */ if(config->localport) { my_setopt(curl, CURLOPT_LOCALPORT, (long)config->localport); my_setopt_str(curl, CURLOPT_LOCALPORTRANGE, (long)config->localportrange); } /* curl 7.15.5 */ my_setopt_str(curl, CURLOPT_FTP_ALTERNATIVE_TO_USER, config->ftp_alternative_to_user); /* curl 7.16.0 */ if(config->disable_sessionid) /* disable it */ my_setopt(curl, CURLOPT_SSL_SESSIONID_CACHE, 0L); /* curl 7.16.2 */ if(config->raw) { my_setopt(curl, CURLOPT_HTTP_CONTENT_DECODING, 0L); my_setopt(curl, CURLOPT_HTTP_TRANSFER_DECODING, 0L); } /* curl 7.17.1 */ if(!config->nokeepalive) { my_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L); if(config->alivetime != 0) { my_setopt(curl, CURLOPT_TCP_KEEPIDLE, config->alivetime); my_setopt(curl, CURLOPT_TCP_KEEPINTVL, config->alivetime); } } else my_setopt(curl, CURLOPT_TCP_KEEPALIVE, 0L); /* curl 7.20.0 */ if(config->tftp_blksize) my_setopt(curl, CURLOPT_TFTP_BLKSIZE, config->tftp_blksize); if(config->mail_from) my_setopt_str(curl, CURLOPT_MAIL_FROM, config->mail_from); if(config->mail_rcpt) my_setopt_slist(curl, CURLOPT_MAIL_RCPT, config->mail_rcpt); /* curl 7.20.x */ if(config->ftp_pret) my_setopt(curl, CURLOPT_FTP_USE_PRET, 1L); if(config->proto_present) my_setopt_flags(curl, CURLOPT_PROTOCOLS, config->proto); if(config->proto_redir_present) my_setopt_flags(curl, CURLOPT_REDIR_PROTOCOLS, config->proto_redir); if(config->content_disposition && (urlnode->flags & GETOUT_USEREMOTE)) hdrcbdata.honor_cd_filename = TRUE; else hdrcbdata.honor_cd_filename = FALSE; hdrcbdata.outs = &outs; hdrcbdata.heads = &heads; my_setopt(curl, CURLOPT_HEADERFUNCTION, tool_header_cb); my_setopt(curl, CURLOPT_HEADERDATA, &hdrcbdata); if(config->resolve) /* new in 7.21.3 */ my_setopt_slist(curl, CURLOPT_RESOLVE, config->resolve); if(config->connect_to) /* new in 7.49.0 */ my_setopt_slist(curl, CURLOPT_CONNECT_TO, config->connect_to); /* new in 7.21.4 */ if(curlinfo->features & CURL_VERSION_TLSAUTH_SRP) { if(config->tls_username) my_setopt_str(curl, CURLOPT_TLSAUTH_USERNAME, config->tls_username); if(config->tls_password) my_setopt_str(curl, CURLOPT_TLSAUTH_PASSWORD, config->tls_password); if(config->tls_authtype) my_setopt_str(curl, CURLOPT_TLSAUTH_TYPE, config->tls_authtype); if(config->proxy_tls_username) my_setopt_str(curl, CURLOPT_PROXY_TLSAUTH_USERNAME, config->proxy_tls_username); if(config->proxy_tls_password) my_setopt_str(curl, CURLOPT_PROXY_TLSAUTH_PASSWORD, config->proxy_tls_password); if(config->proxy_tls_authtype) my_setopt_str(curl, CURLOPT_PROXY_TLSAUTH_TYPE, config->proxy_tls_authtype); } /* new in 7.22.0 */ if(config->gssapi_delegation) my_setopt_str(curl, CURLOPT_GSSAPI_DELEGATION, config->gssapi_delegation); /* new in 7.25.0 and 7.44.0 */ { long mask = (config->ssl_allow_beast ? CURLSSLOPT_ALLOW_BEAST : 0) | (config->ssl_no_revoke ? CURLSSLOPT_NO_REVOKE : 0); if(mask) my_setopt_bitmask(curl, CURLOPT_SSL_OPTIONS, mask); } if(config->proxy_ssl_allow_beast) my_setopt(curl, CURLOPT_PROXY_SSL_OPTIONS, (long)CURLSSLOPT_ALLOW_BEAST); if(config->mail_auth) my_setopt_str(curl, CURLOPT_MAIL_AUTH, config->mail_auth); /* new in 7.31.0 */ if(config->sasl_ir) my_setopt(curl, CURLOPT_SASL_IR, 1L); if(config->nonpn) { my_setopt(curl, CURLOPT_SSL_ENABLE_NPN, 0L); } if(config->noalpn) { my_setopt(curl, CURLOPT_SSL_ENABLE_ALPN, 0L); } /* new in 7.40.0 */ if(config->unix_socket_path) my_setopt_str(curl, CURLOPT_UNIX_SOCKET_PATH, config->unix_socket_path); /* new in 7.45.0 */ if(config->proto_default) my_setopt_str(curl, CURLOPT_DEFAULT_PROTOCOL, config->proto_default); /* new in 7.47.0 */ if(config->expect100timeout > 0) my_setopt_str(curl, CURLOPT_EXPECT_100_TIMEOUT_MS, (long)(config->expect100timeout*1000)); /* new in 7.48.0 */ if(config->tftp_no_options) my_setopt(curl, CURLOPT_TFTP_NO_OPTIONS, 1L); /* initialize retry vars for loop below */ retry_sleep_default = (config->retry_delay) ? config->retry_delay*1000L : RETRY_SLEEP_DEFAULT; /* ms */ retry_numretries = config->req_retry; retry_sleep = retry_sleep_default; /* ms */ retrystart = tvnow(); #ifndef CURL_DISABLE_LIBCURL_OPTION if(global->libcurl) { result = easysrc_perform(); if(result) goto show_error; } #endif for(;;) { #ifdef USE_METALINK if(!metalink && config->use_metalink) { /* If outs.metalink_parser is non-NULL, delete it first. */ if(outs.metalink_parser) metalink_parser_context_delete(outs.metalink_parser); outs.metalink_parser = metalink_parser_context_new(); if(outs.metalink_parser == NULL) { result = CURLE_OUT_OF_MEMORY; goto show_error; } fprintf(config->global->errors, "Metalink: parsing (%s) metalink/XML...\n", this_url); } else if(metalink) fprintf(config->global->errors, "Metalink: fetching (%s) from (%s)...\n", mlfile->filename, this_url); #endif /* USE_METALINK */ #ifdef CURLDEBUG if(config->test_event_based) result = curl_easy_perform_ev(curl); else #endif result = curl_easy_perform(curl); if(!result && !outs.stream && !outs.bytes) { /* we have received no data despite the transfer was successful ==> force cration of an empty output file (if an output file was specified) */ long cond_unmet = 0L; /* do not create (or even overwrite) the file in case we get no data because of unmet condition */ curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &cond_unmet); if(!cond_unmet && !tool_create_output_file(&outs)) result = CURLE_WRITE_ERROR; } if(outs.is_cd_filename && outs.stream && !global->mute && outs.filename) printf("curl: Saved to filename '%s'\n", outs.filename); /* if retry-max-time is non-zero, make sure we haven't exceeded the time */ if(retry_numretries && (!config->retry_maxtime || (tvdiff(tvnow(), retrystart) < config->retry_maxtime*1000L)) ) { enum { RETRY_NO, RETRY_TIMEOUT, RETRY_CONNREFUSED, RETRY_HTTP, RETRY_FTP, RETRY_LAST /* not used */ } retry = RETRY_NO; long response; if((CURLE_OPERATION_TIMEDOUT == result) || (CURLE_COULDNT_RESOLVE_HOST == result) || (CURLE_COULDNT_RESOLVE_PROXY == result) || (CURLE_FTP_ACCEPT_TIMEOUT == result)) /* retry timeout always */ retry = RETRY_TIMEOUT; else if(config->retry_connrefused && (CURLE_COULDNT_CONNECT == result)) { long oserrno; curl_easy_getinfo(curl, CURLINFO_OS_ERRNO, &oserrno); if(ECONNREFUSED == oserrno) retry = RETRY_CONNREFUSED; } else if((CURLE_OK == result) || (config->failonerror && (CURLE_HTTP_RETURNED_ERROR == result))) { /* If it returned OK. _or_ failonerror was enabled and it returned due to such an error, check for HTTP transient errors to retry on. */ char *effective_url = NULL; curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &effective_url); if(effective_url && checkprefix("http", effective_url)) { /* This was HTTP(S) */ curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response); switch(response) { case 500: /* Internal Server Error */ case 502: /* Bad Gateway */ case 503: /* Service Unavailable */ case 504: /* Gateway Timeout */ retry = RETRY_HTTP; /* * At this point, we have already written data to the output * file (or terminal). If we write to a file, we must rewind * or close/re-open the file so that the next attempt starts * over from the beginning. * * TODO: similar action for the upload case. We might need * to start over reading from a previous point if we have * uploaded something when this was returned. */ break; } } } /* if CURLE_OK */ else if(result) { curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response); if(response/100 == 4) /* * This is typically when the FTP server only allows a certain * amount of users and we are not one of them. All 4xx codes * are transient. */ retry = RETRY_FTP; } if(retry) { static const char * const m[]={ NULL, "timeout", "connection refused", "HTTP error", "FTP error" }; warnf(config->global, "Transient problem: %s " "Will retry in %ld seconds. " "%ld retries left.\n", m[retry], retry_sleep/1000L, retry_numretries); tool_go_sleep(retry_sleep); retry_numretries--; if(!config->retry_delay) { retry_sleep *= 2; if(retry_sleep > RETRY_SLEEP_MAX) retry_sleep = RETRY_SLEEP_MAX; } if(outs.bytes && outs.filename && outs.stream) { /* We have written data to a output file, we truncate file */ if(!global->mute) fprintf(global->errors, "Throwing away %" CURL_FORMAT_CURL_OFF_T " bytes\n", outs.bytes); fflush(outs.stream); /* truncate file at the position where we started appending */ #ifdef HAVE_FTRUNCATE if(ftruncate(fileno(outs.stream), outs.init)) { /* when truncate fails, we can't just append as then we'll create something strange, bail out */ if(!global->mute) fprintf(global->errors, "failed to truncate, exiting\n"); result = CURLE_WRITE_ERROR; goto quit_urls; } /* now seek to the end of the file, the position where we just truncated the file in a large file-safe way */ fseek(outs.stream, 0, SEEK_END); #else /* ftruncate is not available, so just reposition the file to the location we would have truncated it. This won't work properly with large files on 32-bit systems, but most of those will have ftruncate. */ fseek(outs.stream, (long)outs.init, SEEK_SET); #endif outs.bytes = 0; /* clear for next round */ } continue; /* curl_easy_perform loop */ } } /* if retry_numretries */ else if(metalink) { /* Metalink: Decide to try the next resource or not. Basically, we want to try the next resource if download was not successful. */ long response; if(CURLE_OK == result) { /* TODO We want to try next resource when download was not successful. How to know that? */ char *effective_url = NULL; curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &effective_url); if(effective_url && curl_strnequal(effective_url, "http", 4)) { /* This was HTTP(S) */ curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response); if(response != 200 && response != 206) { metalink_next_res = 1; fprintf(global->errors, "Metalink: fetching (%s) from (%s) FAILED " "(HTTP status code %d)\n", mlfile->filename, this_url, response); } } } else { metalink_next_res = 1; fprintf(global->errors, "Metalink: fetching (%s) from (%s) FAILED (%s)\n", mlfile->filename, this_url, (errorbuffer[0]) ? errorbuffer : curl_easy_strerror(result)); } } if(metalink && !metalink_next_res) fprintf(global->errors, "Metalink: fetching (%s) from (%s) OK\n", mlfile->filename, this_url); /* In all ordinary cases, just break out of loop here */ break; /* curl_easy_perform loop */ } if((global->progressmode == CURL_PROGRESS_BAR) && progressbar.calls) /* if the custom progress bar has been displayed, we output a newline here */ fputs("\n", progressbar.out); if(config->writeout) ourWriteOut(curl, &outs, config->writeout); if(config->writeenv) ourWriteEnv(curl); /* ** Code within this loop may jump directly here to label 'show_error' ** in order to display an error message for CURLcode stored in 'res' ** variable and exit loop once that necessary writing and cleanup ** in label 'quit_urls' has been done. */ show_error: #ifdef __VMS if(is_vms_shell()) { /* VMS DCL shell behavior */ if(!global->showerror) vms_show = VMSSTS_HIDE; } else #endif if(result && global->showerror) { fprintf(global->errors, "curl: (%d) %s\n", result, (errorbuffer[0]) ? errorbuffer : curl_easy_strerror(result)); if(result == CURLE_SSL_CACERT) fprintf(global->errors, "%s%s", CURL_CA_CERT_ERRORMSG1, CURL_CA_CERT_ERRORMSG2); } /* Fall through comment to 'quit_urls' label */ /* ** Upon error condition and always that a message has already been ** displayed, code within this loop may jump directly here to label ** 'quit_urls' otherwise it should jump to 'show_error' label above. ** ** When 'res' variable is _not_ CURLE_OK loop will exit once that ** all code following 'quit_urls' has been executed. Otherwise it ** will loop to the beginning from where it may exit if there are ** no more urls left. */ quit_urls: /* Set file extended attributes */ if(!result && config->xattr && outs.fopened && outs.stream) { int rc = fwrite_xattr(curl, fileno(outs.stream)); if(rc) warnf(config->global, "Error setting extended attributes: %s\n", strerror(errno)); } /* Close the file */ if(outs.fopened && outs.stream) { int rc = fclose(outs.stream); if(!result && rc) { /* something went wrong in the writing process */ result = CURLE_WRITE_ERROR; fprintf(global->errors, "(%d) Failed writing body\n", result); } } else if(!outs.s_isreg && outs.stream) { /* Dump standard stream buffered data */ int rc = fflush(outs.stream); if(!result && rc) { /* something went wrong in the writing process */ result = CURLE_WRITE_ERROR; fprintf(global->errors, "(%d) Failed writing body\n", result); } } #ifdef __AMIGA__ if(!result && outs.s_isreg && outs.filename) { /* Set the url (up to 80 chars) as comment for the file */ if(strlen(url) > 78) url[79] = '\0'; SetComment(outs.filename, url); } #endif #ifdef HAVE_UTIME /* File time can only be set _after_ the file has been closed */ if(!result && config->remote_time && outs.s_isreg && outs.filename) { /* Ask libcurl if we got a remote file time */ long filetime = -1; curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime); if(filetime >= 0) { struct utimbuf times; times.actime = (time_t)filetime; times.modtime = (time_t)filetime; utime(outs.filename, ×); /* set the time we got */ } } #endif #ifdef USE_METALINK if(!metalink && config->use_metalink && result == CURLE_OK) { int rv = parse_metalink(config, &outs, this_url); if(rv == 0) fprintf(config->global->errors, "Metalink: parsing (%s) OK\n", this_url); else if(rv == -1) fprintf(config->global->errors, "Metalink: parsing (%s) FAILED\n", this_url); } else if(metalink && result == CURLE_OK && !metalink_next_res) { int rv = metalink_check_hash(global, mlfile, outs.filename); if(rv == 0) { metalink_next_res = 1; } } #endif /* USE_METALINK */ /* No more business with this output struct */ if(outs.alloc_filename) Curl_safefree(outs.filename); #ifdef USE_METALINK if(outs.metalink_parser) metalink_parser_context_delete(outs.metalink_parser); #endif /* USE_METALINK */ memset(&outs, 0, sizeof(struct OutStruct)); hdrcbdata.outs = NULL; /* Free loop-local allocated memory and close loop-local opened fd */ Curl_safefree(outfile); Curl_safefree(this_url); if(infdopen) close(infd); if(metalink) { /* Should exit if error is fatal. */ if(is_fatal_error(result)) { break; } if(!metalink_next_res) break; mlres = mlres->next; if(mlres == NULL) /* TODO If metalink_next_res is 1 and mlres is NULL, * set res to error code */ break; } else if(urlnum > 1) { /* when url globbing, exit loop upon critical error */ if(is_fatal_error(result)) break; } else if(result) /* when not url globbing, exit loop upon any error */ break; } /* loop to the next URL */ /* Free loop-local allocated memory */ Curl_safefree(uploadfile); if(urls) { /* Free list of remaining URLs */ glob_cleanup(urls); urls = NULL; } if(infilenum > 1) { /* when file globbing, exit loop upon critical error */ if(is_fatal_error(result)) break; } else if(result) /* when not file globbing, exit loop upon any error */ break; } /* loop to the next globbed upload file */ /* Free loop-local allocated memory */ Curl_safefree(outfiles); if(inglob) { /* Free list of globbed upload files */ glob_cleanup(inglob); inglob = NULL; } /* Free this URL node data without destroying the the node itself nor modifying next pointer. */ Curl_safefree(urlnode->url); Curl_safefree(urlnode->outfile); Curl_safefree(urlnode->infile); urlnode->flags = 0; /* ** Bail out upon critical errors or --fail-early */ if(is_fatal_error(result) || (result && global->fail_early)) goto quit_curl; } /* for-loop through all URLs */ /* ** Nested loops end here. */ quit_curl: /* Reset the global config variables */ global->noprogress = orig_noprogress; global->isatty = orig_isatty; /* Free function-local referenced allocated memory */ Curl_safefree(httpgetfields); /* Free list of given URLs */ clean_getout(config); hdrcbdata.heads = NULL; /* Close function-local opened file descriptors */ if(heads.fopened && heads.stream) fclose(heads.stream); if(heads.alloc_filename) Curl_safefree(heads.filename); /* Release metalink related resources here */ clean_metalink(config); return result; } CURLcode operate(struct GlobalConfig *config, int argc, argv_item_t argv[]) { CURLcode result = CURLE_OK; /* Setup proper locale from environment */ #ifdef HAVE_SETLOCALE setlocale(LC_ALL, ""); #endif /* Parse .curlrc if necessary */ if((argc == 1) || (!curl_strequal(argv[1], "-q") && !curl_strequal(argv[1], "--disable"))) { parseconfig(NULL, config); /* ignore possible failure */ /* If we had no arguments then make sure a url was specified in .curlrc */ if((argc < 2) && (!config->first->url_list)) { helpf(config->errors, NULL); result = CURLE_FAILED_INIT; } } if(!result) { /* Parse the command line arguments */ ParameterError res = parse_args(config, argc, argv); if(res) { result = CURLE_OK; /* Check if we were asked for the help */ if(res == PARAM_HELP_REQUESTED) tool_help(); /* Check if we were asked for the manual */ else if(res == PARAM_MANUAL_REQUESTED) hugehelp(); /* Check if we were asked for the version information */ else if(res == PARAM_VERSION_INFO_REQUESTED) tool_version_info(); /* Check if we were asked to list the SSL engines */ else if(res == PARAM_ENGINES_REQUESTED) tool_list_engines(config->easy); else if(res == PARAM_LIBCURL_UNSUPPORTED_PROTOCOL) result = CURLE_UNSUPPORTED_PROTOCOL; else result = CURLE_FAILED_INIT; } else { #ifndef CURL_DISABLE_LIBCURL_OPTION if(config->libcurl) { /* Initialise the libcurl source output */ result = easysrc_init(); } #endif /* Perform the main operations */ if(!result) { size_t count = 0; struct OperationConfig *operation = config->first; /* Get the required aguments for each operation */ while(!result && operation) { result = get_args(operation, count++); operation = operation->next; } /* Set the current operation pointer */ config->current = config->first; /* Perform each operation */ while(!result && config->current) { result = operate_do(config, config->current); config->current = config->current->next; } #ifndef CURL_DISABLE_LIBCURL_OPTION if(config->libcurl) { /* Cleanup the libcurl source output */ easysrc_cleanup(); /* Dump the libcurl code if previously enabled */ dumpeasysrc(config); } #endif } else helpf(config->errors, "out of memory\n"); } } return result; }