/curl-7.28.0/src/tool_operate.c
C | 1783 lines | 1222 code | 237 blank | 324 comment | 381 complexity | f08d6d1b1751008a8d663fb918e675b2 MD5 | raw file
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- /***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
- #include "tool_setup.h"
- #ifdef HAVE_UNISTD_H
- # include <unistd.h>
- #endif
- #ifdef HAVE_FCNTL_H
- # include <fcntl.h>
- #endif
- #ifdef HAVE_UTIME_H
- # include <utime.h>
- #elif defined(HAVE_SYS_UTIME_H)
- # include <sys/utime.h>
- #endif
- #ifdef HAVE_LOCALE_H
- # include <locale.h>
- #endif
- #ifdef HAVE_NETINET_TCP_H
- # include <netinet/tcp.h>
- #endif
- #include "rawstr.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_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 "memdebug.h" /* keep this as LAST include */
- #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: http://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 int is_fatal_error(int 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 1;
- default:
- break;
- }
- /* no error or not critical */
- return 0;
- }
- int operate(struct Configurable *config, int argc, argv_item_t argv[])
- {
- char errorbuffer[CURL_ERROR_SIZE];
- struct ProgressData progressbar;
- struct getout *urlnode;
- struct HdrCbData hdrcbdata;
- struct OutStruct heads;
- metalinkfile *mlfile_last = NULL;
- CURL *curl = NULL;
- char *httpgetfields = NULL;
- bool stillflags;
- int res = 0;
- int i;
- bool orig_noprogress;
- bool orig_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;
- memory_tracking_init();
- /*
- ** Initialize curl library - do not call any libcurl functions before
- ** this point. Note that the memory_tracking_init() magic above is an
- ** exception, but then that's not part of the official public API.
- */
- if(main_init() != CURLE_OK) {
- helpf(config->errors, "error initializing curl library\n");
- return CURLE_FAILED_INIT;
- }
- /* Get libcurl info right away */
- if(get_libcurl_info() != CURLE_OK) {
- helpf(config->errors, "error retrieving curl library information\n");
- main_free();
- return CURLE_FAILED_INIT;
- }
- /* Get a curl handle to use for all forthcoming curl transfers */
- curl = curl_easy_init();
- if(!curl) {
- helpf(config->errors, "error initializing curl easy handle\n");
- main_free();
- return CURLE_FAILED_INIT;
- }
- config->easy = curl;
- /*
- ** 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.
- */
- /* setup proper locale from environment */
- #ifdef HAVE_SETLOCALE
- setlocale(LC_ALL, "");
- #endif
- /* inits */
- config->postfieldsize = -1;
- config->showerror = -1; /* will show errors */
- config->use_httpget = FALSE;
- config->create_dirs = FALSE;
- config->maxredirs = DEFAULT_MAXREDIRS;
- config->proto = CURLPROTO_ALL; /* FIXME: better to read from library */
- config->proto_present = FALSE;
- config->proto_redir =
- CURLPROTO_ALL & ~(CURLPROTO_FILE|CURLPROTO_SCP); /* not FILE or SCP */
- config->proto_redir_present = FALSE;
- if((argc > 1) &&
- (!curlx_strnequal("--", argv[1], 2) && (argv[1][0] == '-')) &&
- strchr(argv[1], 'q')) {
- /*
- * The first flag, that is not a verbose name, but a shortname
- * and it includes the 'q' flag!
- */
- ;
- }
- else {
- parseconfig(NULL, config); /* ignore possible failure */
- }
- if((argc < 2) && !config->url_list) {
- helpf(config->errors, NULL);
- res = CURLE_FAILED_INIT;
- goto quit_curl;
- }
- /* Parse options */
- for(i = 1, stillflags = TRUE; i < argc; i++) {
- if(stillflags &&
- ('-' == argv[i][0])) {
- char *nextarg;
- bool passarg;
- char *orig_opt = argv[i];
- char *flag = argv[i];
- if(curlx_strequal("--", argv[i]))
- /* this indicates the end of the flags and thus enables the
- following (URL) argument to start with -. */
- stillflags = FALSE;
- else {
- nextarg = (i < (argc-1)) ? argv[i+1] : NULL;
- res = getparameter(flag, nextarg, &passarg, config);
- if(res) {
- int retval = CURLE_OK;
- if(res != PARAM_HELP_REQUESTED) {
- const char *reason = param2text(res);
- helpf(config->errors, "option %s: %s\n", orig_opt, reason);
- retval = CURLE_FAILED_INIT;
- }
- res = retval;
- goto quit_curl;
- }
- if(passarg) /* we're supposed to skip this */
- i++;
- }
- }
- else {
- bool used;
- /* just add the URL please */
- res = getparameter((char *)"--url", argv[i], &used, config);
- if(res)
- goto quit_curl;
- }
- }
- if((!config->url_list || !config->url_list->url) && !config->list_engines) {
- helpf(config->errors, "no URL specified!\n");
- res = CURLE_FAILED_INIT;
- goto quit_curl;
- }
- if(!config->useragent)
- config->useragent = my_useragent();
- if(!config->useragent) {
- helpf(config->errors, "out of memory\n");
- res = CURLE_OUT_OF_MEMORY;
- 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.
- */
- 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(config->errors, "out of memory\n");
- res = 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(config->errors, "out of memory\n");
- res = CURLE_OUT_OF_MEMORY;
- goto quit_curl;
- }
- }
- else {
- env = curlx_getenv("SSL_CERT_FILE");
- if(env) {
- config->cacert = strdup(env);
- if(!config->cacert) {
- curl_free(env);
- helpf(config->errors, "out of memory\n");
- res = CURLE_OUT_OF_MEMORY;
- goto quit_curl;
- }
- }
- }
- }
- if(env)
- curl_free(env);
- #ifdef WIN32
- else {
- res = FindWin32CACert(config, "curl-ca-bundle.crt");
- if(res)
- 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(config->errors, "out of memory\n");
- res = CURLE_OUT_OF_MEMORY;
- goto quit_curl;
- }
- if(SetHTTPrequest(config,
- (config->no_body?HTTPREQ_HEAD:HTTPREQ_GET),
- &config->httpreq)) {
- res = PARAM_BAD_USE;
- goto quit_curl;
- }
- }
- else {
- if(SetHTTPrequest(config, HTTPREQ_SIMPLEPOST, &config->httpreq)) {
- res = PARAM_BAD_USE;
- goto quit_curl;
- }
- }
- }
- #ifndef CURL_DISABLE_LIBCURL_OPTION
- res = easysrc_init();
- if(res) {
- helpf(config->errors, "out of memory\n");
- goto quit_curl;
- }
- #endif
- if(config->list_engines) {
- struct curl_slist *engines = NULL;
- curl_easy_getinfo(curl, CURLINFO_SSL_ENGINES, &engines);
- list_engines(engines);
- curl_slist_free_all(engines);
- res = CURLE_OK;
- goto quit_curl;
- }
- /* Single header file for all URLs */
- if(config->headerfile) {
- /* open file for output: */
- if(!curlx_strequal(config->headerfile, "-")) {
- FILE *newfile = fopen(config->headerfile, "wb");
- if(!newfile) {
- warnf(config, "Failed to open %s\n", config->headerfile);
- res = CURLE_WRITE_ERROR;
- goto quit_curl;
- }
- else {
- heads.filename = config->headerfile;
- heads.s_isreg = TRUE;
- heads.fopened = TRUE;
- heads.stream = newfile;
- }
- }
- }
- /* save the values of noprogress and isatty to restore them later on */
- orig_noprogress = config->noprogress;
- orig_isatty = config->isatty;
- /*
- ** Nested loops start here.
- */
- /* loop through the list of given URLs */
- for(urlnode = config->url_list; urlnode; urlnode = urlnode->next) {
- int up; /* upload file counter within a single upload glob */
- char *infiles; /* might be a glob pattern */
- char *outfiles;
- int 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(config->errors, "out of memory\n");
- res = CURLE_OUT_OF_MEMORY;
- break;
- }
- }
- infiles = urlnode->infile;
- if(!config->globoff && infiles) {
- /* Unless explicitly shut off */
- res = glob_url(&inglob, infiles, &infilenum,
- config->showerror?config->errors:NULL);
- if(res) {
- 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;
- int urlnum;
- uploadfile = NULL;
- urls = NULL;
- urlnum = 0;
- if(!up && !infiles)
- Curl_nop_stmt;
- else {
- if(inglob) {
- res = glob_next_url(&uploadfile, inglob);
- if(res == CURLE_OUT_OF_MEMORY)
- helpf(config->errors, "out of memory\n");
- }
- else if(!up) {
- uploadfile = strdup(infiles);
- if(!uploadfile) {
- helpf(config->errors, "out of memory\n");
- res = 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 */
- res = glob_url(&urls, urlnode->url, &urlnum,
- config->showerror?config->errors:NULL);
- if(res) {
- Curl_safefree(uploadfile);
- break;
- }
- }
- else
- urlnum = 1; /* without globbing, this is a single URL */
- /* if multiple files extracted to stdout, insert separators! */
- separator= ((!outfiles || curlx_strequal(outfiles, "-")) && urlnum > 1);
- /* Here's looping around each globbed URL */
- for(i = 0 ; i < urlnum; i++) {
- 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;
- 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) {
- res = CURLE_OUT_OF_MEMORY;
- goto show_error;
- }
- this_url = strdup(mlres->url);
- if(!this_url) {
- res = CURLE_OUT_OF_MEMORY;
- goto show_error;
- }
- }
- else {
- if(urls) {
- res = glob_next_url(&this_url, urls);
- if(res)
- goto show_error;
- }
- else if(!i) {
- this_url = strdup(urlnode->url);
- if(!this_url) {
- res = CURLE_OUT_OF_MEMORY;
- goto show_error;
- }
- }
- else
- this_url = NULL;
- if(!this_url)
- break;
- if(outfiles) {
- outfile = strdup(outfiles);
- if(!outfile) {
- res = CURLE_OUT_OF_MEMORY;
- goto show_error;
- }
- }
- }
- if(((urlnode->flags&GETOUT_USEREMOTE) ||
- (outfile && !curlx_strequal("-", 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 */
- res = get_url_file_name(&outfile, this_url);
- if(res)
- goto show_error;
- if((!outfile || !*outfile) && !config->content_disposition) {
- helpf(config->errors, "Remote file name has no length!\n");
- res = CURLE_WRITE_ERROR;
- goto quit_urls;
- }
- #if defined(MSDOS) || defined(WIN32)
- /* For DOS and WIN32, we do some major replacing of
- bad characters in the file name before using it */
- outfile = sanitize_dos_name(outfile);
- if(!outfile) {
- res = CURLE_OUT_OF_MEMORY;
- goto show_error;
- }
- #endif /* MSDOS || WIN32 */
- }
- else if(urls) {
- /* fill '#1' ... '#9' terms from URL pattern */
- char *storefile = outfile;
- res = glob_match_url(&outfile, storefile, urls);
- Curl_safefree(storefile);
- if(res) {
- /* bad globbing */
- warnf(config, "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) {
- res = create_dir_hierarchy(outfile, config->errors);
- /* create_dir_hierarchy shows error upon CURLE_WRITE_ERROR */
- if(res == CURLE_WRITE_ERROR)
- goto quit_urls;
- if(res) {
- 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) {
- /* open file for output: */
- FILE *file = fopen(outfile, config->resume_from?"ab":"wb");
- if(!file) {
- helpf(config->errors, "Can't open '%s'!\n", outfile);
- res = 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) {
- res = 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
- */
- infd = open(uploadfile, O_RDONLY | O_BINARY);
- if((infd == -1) || fstat(infd, &fileinfo)) {
- helpf(config->errors, "Can't open '%s'!\n", uploadfile);
- if(infd != -1) {
- close(infd);
- infd = STDIN_FILENO;
- }
- res = 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,
- "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(curlx_strequal(uploadfile, ".")) {
- if(curlx_nonblock((curl_socket_t)infd, TRUE) < 0)
- warnf(config,
- "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 */
- config->noprogress = config->isatty = TRUE;
- else {
- /* progress meter is per download, so restore config
- values */
- config->noprogress = orig_noprogress;
- config->isatty = orig_isatty;
- }
- if(urlnum > 1 && !(config->mute)) {
- fprintf(config->errors, "\n[%d/%d]: %s --> %s\n",
- i+1, urlnum, this_url, outfile ? outfile : "<stdout>");
- 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.
- */
- urlbuffer = malloc(strlen(this_url) + strlen(httpgetfields) + 3);
- if(!urlbuffer) {
- res = CURLE_OUT_OF_MEMORY;
- goto show_error;
- }
- if(pc)
- sprintf(urlbuffer, "%s%c%s", this_url, sep, httpgetfields);
- else
- /* Append / before the ? to create a well-formed url
- if the url contains a hostname only
- */
- sprintf(urlbuffer, "%s/?%s", this_url, httpgetfields);
- Curl_safefree(this_url); /* free previous URL */
- this_url = urlbuffer; /* use our new URL instead! */
- }
- if(!config->errors)
- config->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, 1);
- /* where to store */
- my_setopt(curl, CURLOPT_WRITEDATA, &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, 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, config->noprogress);
- if(config->no_body) {
- my_setopt(curl, CURLOPT_NOBODY, 1);
- my_setopt(curl, CURLOPT_HEADER, 1);
- }
- /* 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);
- #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);
- my_setopt_str(curl, CURLOPT_PROXYUSERPWD, config->proxyuserpwd);
- /* new in libcurl 7.3 */
- my_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, config->proxytunnel);
- /* new in libcurl 7.5 */
- if(config->proxy)
- my_setopt_enum(curl, CURLOPT_PROXYTYPE, config->proxyver);
- /* new in libcurl 7.10 */
- if(config->socksproxy) {
- my_setopt_str(curl, CURLOPT_PROXY, config->socksproxy);
- my_setopt_enum(curl, CURLOPT_PROXYTYPE, config->socksver);
- }
- /* 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(curl, CURLOPT_NOPROXY, config->noproxy);
- }
- #endif
- my_setopt(curl, CURLOPT_FAILONERROR, config->failonerror);
- my_setopt(curl, CURLOPT_UPLOAD, uploadfile?TRUE:FALSE);
- my_setopt(curl, CURLOPT_DIRLISTONLY, config->dirlistonly);
- my_setopt(curl, CURLOPT_APPEND, config->ftp_append);
- if(config->netrc_opt)
- my_setopt(curl, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
- else if(config->netrc || config->netrc_file)
- my_setopt(curl, CURLOPT_NETRC, CURL_NETRC_REQUIRED);
- else
- my_setopt(curl, CURLOPT_NETRC, CURL_NETRC_IGNORED);
- if(config->netrc_file)
- my_setopt(curl, CURLOPT_NETRC_FILE, config->netrc_file);
- my_setopt(curl, CURLOPT_TRANSFERTEXT, config->use_ascii);
- 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, config->timeout);
- if(built_in_protos & CURLPROTO_HTTP) {
- long postRedir = 0;
- my_setopt(curl, CURLOPT_FOLLOWLOCATION,
- config->followlocation);
- my_setopt(curl, CURLOPT_UNRESTRICTED_AUTH,
- config->unrestricted_auth);
- 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_POST:
- 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);
- my_setopt_str(curl, CURLOPT_USERAGENT, config->useragent);
- my_setopt_slist(curl, CURLOPT_HTTPHEADER, config->headers);
- /* new in libcurl 7.5 */
- my_setopt(curl, CURLOPT_MAXREDIRS, config->maxredirs);
- /* new in libcurl 7.9.1 */
- if(config->httpversion)
- my_setopt_enum(curl, CURLOPT_HTTP_VERSION, config->httpversion);
- /* 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, 1);
- } /* (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);
- my_setopt(curl, CURLOPT_RESUME_FROM_LARGE,
- config->use_resume?config->resume_from:0);
- my_setopt(curl, CURLOPT_SSLCERT, config->cert);
- my_setopt_str(curl, CURLOPT_SSLCERTTYPE, config->cert_type);
- my_setopt(curl, CURLOPT_SSLKEY, config->key);
- my_setopt_str(curl, CURLOPT_SSLKEYTYPE, config->key_type);
- my_setopt_str(curl, CURLOPT_KEYPASSWD, config->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->capath)
- my_setopt_str(curl, CURLOPT_CAPATH, config->capath);
- if(config->crlfile)
- my_setopt_str(curl, CURLOPT_CRLFILE, config->crlfile);
- if(curlinfo->features & CURL_VERSION_SSL) {
- if(config->insecure_ok) {
- my_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
- my_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1L);
- }
- else {
- my_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
- /* libcurl default is strict verifyhost -> 2L */
- /* my_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2L); */
- }
- }
- if(built_in_protos & (CURLPROTO_SCP|CURLPROTO_SFTP)) {
- if(!config->insecure_ok) {
- char *home;
- char *file;
- res = 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 */
- res = res_setopt_str(curl, CURLOPT_SSH_KNOWNHOSTS, file);
- curl_free(file);
- if(res == CURLE_UNKNOWN_OPTION)
- /* libssh2 version older than 1.1.1 */
- res = CURLE_OK;
- }
- Curl_safefree(home);
- }
- if(res)
- goto show_error;
- }
- }
- if(config->no_body || config->remote_time) {
- /* no body or use remote time */
- my_setopt(curl, CURLOPT_FILETIME, TRUE);
- }
- my_setopt(curl, CURLOPT_CRLF, config->crlf);
- 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)
- {
- /* TODO: Make this a run-time check instead of compile-time one. */
- 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);
- }
- #endif
- my_setopt_enum(curl, CURLOPT_SSLVERSION, config->ssl_version);
- my_setopt_enum(curl, CURLOPT_TIMECONDITION, config->timecond);
- my_setopt(curl, CURLOPT_TIMEVALUE, config->condtime);
- my_setopt_str(curl, CURLOPT_CUSTOMREQUEST, config->customrequest);
- my_setopt(curl, CURLOPT_STDERR, config->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((config->progressmode == CURL_PROGRESS_BAR) &&
- !config->noprogress && !config->mute) {
- /* we want the alternative style, then we have to implement it
- ourselves! */
- my_setopt(curl, CURLOPT_PROGRESSFUNCTION, tool_progress_cb);
- my_setopt(curl, CURLOPT_PROGRESSDATA, &progressbar);
- }
- /* 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(curl, CURLOPT_EGDSOCKET, config->egd_file);
- my_setopt(curl, CURLOPT_CONNECTTIMEOUT, config->connecttimeout);
- if(config->cipher_list)
- my_setopt_str(curl, CURLOPT_SSL_CIPHER_LIST, config->cipher_list);
- /* new in libcurl 7.9.2: */
- if(config->disable_epsv)
- /* disable it */
- my_setopt(curl, CURLOPT_FTP_USE_EPSV, FALSE);
- /* new in libcurl 7.10.5 */
- if(config->disable_eprt)
- /* disable it */
- my_setopt(curl, CURLOPT_FTP_USE_EPRT, FALSE);
- if(config->tracetype != TRACE_NONE) {
- my_setopt(curl, CURLOPT_DEBUGFUNCTION, tool_debug_cb);
- my_setopt(curl, CURLOPT_DEBUGDATA, config);
- my_setopt(curl, CURLOPT_VERBOSE, TRUE);
- }
- /* new in curl 7.9.3 */
- if(config->engine) {
- res = res_setopt_str(curl, CURLOPT_SSLENGINE, config->engine);
- if(res)
- goto show_error;
- my_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1);
- }
- /* new in curl 7.10.7, extended in 7.19.4 but this only sets 0 or 1 */
- my_setopt(curl, CURLOPT_FTP_CREATE_MISSING_DIRS,
- config->ftp_create_dirs);
- /* 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(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
- /* new in curl 7.11.0 */
- else if(config->ftp_ssl)
- my_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_TRY);
- /* new in curl 7.16.0 */
- else if(config->ftp_ssl_control)
- my_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_CONTROL);
- /* new in curl 7.16.1 */
- if(config->ftp_ssl_ccc)
- my_setopt_enum(curl, CURLOPT_FTP_SSL_CCC, config->ftp_ssl_ccc_mode);
- #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
- {
- /* TODO: Make this a run-time check instead of compile-time one. */
- /* new in curl 7.19.4 */
- if(config->socks5_gssapi_service)
- my_setopt_str(curl, CURLOPT_SOCKS5_GSSAPI_SERVICE,
- config->socks5_gssapi_service);
- /* new in curl 7.19.4 */
- if(config->socks5_gssapi_nec)
- my_setopt_str(curl, CURLOPT_SOCKS5_GSSAPI_NEC,
- config->socks5_gssapi_nec);
- }
- #endif
- /* curl 7.13.0 */
- my_setopt_str(curl, CURLOPT_FTP_ACCOUNT, config->ftp_account);
- my_setopt(curl, CURLOPT_IGNORE_CONTENT_LENGTH, config->ignorecl);
- /* curl 7.14.2 */
- my_setopt(curl, CURLOPT_FTP_SKIP_PASV_IP, config->ftp_skip_ip);
- /* curl 7.15.1 */
- my_setopt(curl, CURLOPT_FTP_FILEMETHOD, config->ftp_filemethod);
- /* curl 7.15.2 */
- if(config->localport) {
- my_setopt(curl, CURLOPT_LOCALPORT, config->localport);
- my_setopt_str(curl, CURLOPT_LOCALPORTRANGE,
- 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)
- my_setopt(curl, CURLOPT_SSL_SESSIONID_CACHE,
- !config->disable_sessionid);
- /* curl 7.16.2 */
- if(config->raw) {
- my_setopt(curl, CURLOPT_HTTP_CONTENT_DECODING, FALSE);
- my_setopt(curl, CURLOPT_HTTP_TRANSFER_DECODING, FALSE);
- }
- /* curl 7.17.1 */
- if(!config->nokeepalive) {
- my_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
- if(config->alivetime != 0) {
- #if !defined(TCP_KEEPIDLE) || !defined(TCP_KEEPINTVL)
- warnf(config, "Keep-alive functionality somewhat crippled due to "
- "missing support in your operating system!\n");
- #endif
- 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, TRUE);
- 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)
- && (checkprefix("http://", this_url) ||
- checkprefix("https://", this_url)))
- 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);
- /* 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);
- }
- /* new in 7.22.0 */
- if(config->gssapi_delegation)
- my_setopt_str(curl, CURLOPT_GSSAPI_DELEGATION,
- config->gssapi_delegation);
- /* new in 7.25.0 */
- if(config->ssl_allow_beast)
- my_setopt(curl, CURLOPT_SSL_OPTIONS, (long)CURLSSLOPT_ALLOW_BEAST);
- if(config->mail_auth)
- my_setopt_str(curl, CURLOPT_MAIL_AUTH, config->mail_auth);
- /* 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
- res = easysrc_perform();
- if(res) {
- 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) {
- res = CURLE_OUT_OF_MEMORY;
- goto show_error;
- }
- fprintf(config->errors, "Metalink: parsing (%s) metalink/XML...\n",
- this_url);
- }
- else if(metalink)
- fprintf(config->errors, "Metalink: fetching (%s) from (%s)...\n",
- mlfile->filename, this_url);
- #endif /* USE_METALINK */
- res = curl_easy_perform(curl);
- if(outs.is_cd_filename && outs.stream && !config->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_HTTP,
- RETRY_FTP,
- RETRY_LAST /* not used */
- } retry = RETRY_NO;
- long response;
- if((CURLE_OPERATION_TIMEDOUT == res) ||
- (CURLE_COULDNT_RESOLVE_HOST == res) ||
- (CURLE_COULDNT_RESOLVE_PROXY == res) ||
- (CURLE_FTP_ACCEPT_TIMEOUT == res))
- /* retry timeout always */
- retry = RETRY_TIMEOUT;
- else if((CURLE_OK == res) ||
- (config->failonerror &&
- (CURLE_HTTP_RETURNED_ERROR == res))) {
- /* 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(res) {
- 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", "HTTP error", "FTP error"
- };
- warnf(config, "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) {
- /* We have written data to a output file, we truncate file
- */
- if(!config->mute)
- fprintf(config->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(!config->mute)
- fprintf(config->errors,
- "failed to truncate, exiting\n");
- res = CURLE_WRITE_ERR…
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