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cc4ff62681
curl/src/main.c
Daniel Stenberg b4620364a2 more fixes from Doug Kaufman for DJGPP builds for DOS
2003-07-15 23:47:25 +00:00

3456 lines
99 KiB
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2003, 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.
*
* $Id$
***************************************************************************/
/* This is now designed to have its own local setup.h */
#include "setup.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include <errno.h>
#include <curl/curl.h>
#define _MPRINTF_REPLACE /* we want curl-functions instead of native ones */
#include <curl/mprintf.h>
#include "urlglob.h"
#include "writeout.h"
#ifdef USE_ENVIRONMENT
#include "writeenv.h"
#endif
#define CURLseparator "--_curl_--"
#if defined(WIN32)&&!defined(__CYGWIN32__)
#include <winsock.h>
#endif
#ifdef TIME_WITH_SYS_TIME
/* We can include both fine */
#include <sys/time.h>
#include <time.h>
#else
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#else
# include <time.h>
#endif
#endif
#include "version.h"
#ifdef HAVE_IO_H /* typical win32 habit */
#include <io.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UTIME_H
#include <utime.h>
#else
#ifdef HAVE_SYS_UTIME_H
#include <sys/utime.h>
#endif
#endif
#ifdef HAVE_SYS_POLL_H
#include <sys/poll.h>
#endif
/* The last #include file should be: */
#ifdef CURLDEBUG
/* This is low-level hard-hacking memory leak tracking and similar. Using
the library level code from this client-side is ugly, but we do this
anyway for convenience. */
#include "../lib/memdebug.h"
#endif
#define DEFAULT_MAXREDIRS 50L
#ifdef __DJGPP__
void *xmalloc(size_t);
char *msdosify(char *);
char *rename_if_dos_device_name(char *);
void xfree(void *);
#include <limits.h>
#include <fcntl.h>
struct pollfd {
int fd;
int events; /* in param: what to poll for */
int revents; /* out param: what events occured */
};
int poll (struct pollfd *, int, int);
#endif /* __DJGPP__ */
#ifndef __cplusplus /* (rabe) */
#ifndef typedef_bool
typedef char bool;
#endif
#endif /* (rabe) */
#define CURL_PROGRESS_STATS 0 /* default progress display */
#define CURL_PROGRESS_BAR 1
typedef enum {
HTTPREQ_UNSPEC,
HTTPREQ_GET,
HTTPREQ_HEAD,
HTTPREQ_POST,
HTTPREQ_SIMPLEPOST,
HTTPREQ_CUSTOM,
HTTPREQ_LAST
} HttpReq;
/* Just a set of bits */
#define CONF_DEFAULT 0
#define CONF_AUTO_REFERER (1<<4) /* the automatic referer-system please! */
#define CONF_VERBOSE (1<<5) /* talk a lot */
#define CONF_HEADER (1<<8) /* throw the header out too */
#define CONF_NOPROGRESS (1<<10) /* shut off the progress meter */
#define CONF_NOBODY (1<<11) /* use HEAD to get http document */
#define CONF_FAILONERROR (1<<12) /* no output on http error codes >= 300 */
#define CONF_UPLOAD (1<<14) /* this is an upload */
#define CONF_FTPLISTONLY (1<<16) /* Use NLST when listing ftp dir */
#define CONF_FTPAPPEND (1<<20) /* Append instead of overwrite on upload! */
#define CONF_NETRC (1<<22) /* read user+password from .netrc */
#define CONF_FOLLOWLOCATION (1<<23) /* use Location: Luke! */
#define CONF_GETTEXT (1<<24) /* use ASCII/text for transfer */
#define CONF_HTTPPOST (1<<25) /* multipart/form-data HTTP POST */
#define CONF_MUTE (1<<28) /* force NOPROGRESS */
#define CONF_NETRC_OPT (1<<29) /* read user+password from either
* .netrc or URL*/
#define CONF_UNRESTRICTED_AUTH (1<<30)
/* Send authentication (user+password) when following
* locations, even when hostname changed */
#ifndef HAVE_STRDUP
/* Ultrix doesn't have strdup(), so make a quick clone: */
char *strdup(char *str)
{
int len;
char *newstr;
len = strlen(str);
newstr = (char *) malloc((len+1)*sizeof(char));
if (!newstr)
return (char *)NULL;
strcpy(newstr,str);
return newstr;
}
#endif
#ifdef WIN32
#include <direct.h>
#define F_OK 0
#define mkdir(x,y) (mkdir)(x)
#endif
#ifdef VMS
int vms_show = 0;
#define FAC_CURL 0xC01
#define FAC_SYSTEM 0
#define MSG_NORMAL 0
#define VMS_STS(c,f,e,s) (((c&0xF)<<28)|((f&0xFFF)<<16)|((e&0x1FFF)<3)|(s&7))
#define VMSSTS_HIDE VMS_STS(1,0,0,0)
#define SEV_WARNING 0
#define SEV_SUCCESS 1
#define SEV_ERROR 2
#define SEV_INFO 3 /* success, with an extra hint */
#define SEV_FATAL 4
globalvalue int CURL_UNSUPPROTO; /* these are from curlmsg.msg file..... */
globalvalue int CURL_FAILINIT;
globalvalue int CURL_BADURLSYN;
globalvalue int CURL_BADURLUSER;
globalvalue int CURL_BADPROXY;
globalvalue int CURL_BADHOST;
globalvalue int CURL_FAILHOST;
globalvalue int CURL_FTPUNKREPLY;
globalvalue int CURL_FTPNOACC;
globalvalue int CURL_FTPUSRPW;
globalvalue int CURL_FTPBADPASS;
globalvalue int CURL_FTPBADUSER;
globalvalue int CURL_FTPBADPASV;
globalvalue int CURL_FTPBAD227;
globalvalue int CURL_FTPBADHOST227;
globalvalue int CURL_FTPNORECONN;
globalvalue int CURL_FTPNOBIN;
globalvalue int CURL_PARTIALFILE;
globalvalue int CURL_FTPNORETR;
globalvalue int CURL_FTPWRITERR;
globalvalue int CURL_FTPNOQUOTE;
globalvalue int CURL_HTTPPNF;
globalvalue int CURL_WRITERR;
globalvalue int CURL_BADUSER;
globalvalue int CURL_FTPNOSTOR;
globalvalue int CURL_READERR;
globalvalue int CURL_OUTOFMEM;
globalvalue int CURL_TIMEOUT;
globalvalue int CURL_FTPNOASCII;
globalvalue int CURL_FTPNOPORT;
globalvalue int CURL_FTPNOREST;
globalvalue int CURL_FTPNOSIZE;
globalvalue int CURL_HTTPRNGERR;
globalvalue int CURL_HTTPPOSTERR;
globalvalue int CURL_SSLNOCONN;
globalvalue int CURL_FTPBADRESUME;
globalvalue int CURL_FILENOACC;
globalvalue int CURL_LDAPNOBIND;
globalvalue int CURL_LDAPNOSRCH;
globalvalue int CURL_LDAPNOLIB;
globalvalue int CURL_LDAPNOFUNC;
globalvalue int CURL_ABORTCB;
globalvalue int CURL_BADPARAM;
globalvalue int CURL_BADORDER;
globalvalue int CURL_BADPWD;
globalvalue int CURL_MNYREDIR;
globalvalue int CURL_UNKTELNET;
globalvalue int CURL_UNKMSG;
globalvalue int CURL_BADSSLCERT;
globalvalue int CURL_SRVNOERR;
globalvalue int CURL_MAXMSG;
long vms_cond[] = {
VMS_STS(1,FAC_SYSTEM,MSG_NORMAL,SEV_SUCCESS),
CURL_UNSUPPROTO, /* these are from curlmsg.msg file..... */
CURL_FAILINIT,
CURL_BADURLSYN,
CURL_BADURLUSER,
CURL_BADPROXY,
CURL_BADHOST,
CURL_FAILHOST,
CURL_FTPUNKREPLY,
CURL_FTPNOACC,
CURL_FTPUSRPW,
CURL_FTPBADPASS,
CURL_FTPBADUSER,
CURL_FTPBADPASV,
CURL_FTPBAD227,
CURL_FTPBADHOST227,
CURL_FTPNORECONN,
CURL_FTPNOBIN,
CURL_PARTIALFILE,
CURL_FTPNORETR,
CURL_FTPWRITERR,
CURL_FTPNOQUOTE,
CURL_HTTPPNF,
CURL_WRITERR,
CURL_BADUSER,
CURL_FTPNOSTOR,
CURL_READERR,
CURL_OUTOFMEM,
CURL_TIMEOUT,
CURL_FTPNOASCII,
CURL_FTPNOPORT,
CURL_FTPNOREST,
CURL_FTPNOSIZE,
CURL_HTTPRNGERR,
CURL_HTTPPOSTERR,
CURL_SSLNOCONN,
CURL_FTPBADRESUME,
CURL_FILENOACC,
CURL_LDAPNOBIND,
CURL_LDAPNOSRCH,
CURL_LDAPNOLIB,
CURL_LDAPNOFUNC,
CURL_ABORTCB,
CURL_BADPARAM,
CURL_BADORDER,
CURL_BADPWD,
CURL_MNYREDIR,
CURL_UNKTELNET,
CURL_UNKMSG,
CURL_BADSSLCERT,
CURL_SRVNOERR,
CURL_MAXMSG
};
#endif
extern void hugehelp(void);
/*
* This is the main global constructor for the app. Call this before
* _any_ libcurl usage. If this fails, *NO* libcurl functions may be
* used, or havoc may be the result.
*/
CURLcode main_init(void)
{
return curl_global_init(CURL_GLOBAL_DEFAULT);
}
/*
* This is the main global destructor for the app. Call this after
* _all_ libcurl usage is done.
*/
void main_free(void)
{
curl_global_cleanup();
}
int SetHTTPrequest(HttpReq req, HttpReq *store)
{
if((*store == HTTPREQ_UNSPEC) ||
(*store == req)) {
*store = req;
return 0;
}
fprintf(stderr, "You can only select one HTTP request!\n");
return 1;
}
static void helpf(const char *fmt, ...)
{
va_list ap;
if(fmt) {
va_start(ap, fmt);
fputs("curl: ", stderr); /* prefix it */
vfprintf(stderr, fmt, ap);
va_end(ap);
}
fprintf(stderr, "curl: try 'curl --help' or "
"'curl --manual' for more information\n");
}
/*
* A chain of these nodes contain URL to get and where to put the URL's
* contents.
*/
struct getout {
struct getout *next;
char *url;
char *outfile;
int flags;
};
#define GETOUT_OUTFILE (1<<0) /* set when outfile is deemed done */
#define GETOUT_URL (1<<1) /* set when URL is deemed done */
#define GETOUT_USEREMOTE (1<<2) /* use remote file name locally */
static void help(void)
{
printf(CURL_ID "%s\n"
"Usage: curl [options...] <url>\n"
"Options: (H) means HTTP/HTTPS only, (F) means FTP only\n"
" -a/--append Append to target file when uploading (F)\n"
" -A/--user-agent <string> User-Agent to send to server (H)\n"
" --anyauth Tell curl to choose authentication method (H)\n"
" -b/--cookie <name=string/file> Cookie string or file to read cookies from (H)\n"
" --basic Enable HTTP Basic Authentication (H)\n"
" -B/--use-ascii Use ASCII/text transfer\n",
curl_version());
puts(" -c/--cookie-jar <file> Write all cookies to this file after operation (H)\n"
" -C/--continue-at <offset> Specify absolute resume offset\n"
" -d/--data <data> HTTP POST data (H)\n"
" --data-ascii <data> HTTP POST ASCII data (H)\n"
" --data-binary <data> HTTP POST binary data (H)\n"
" --negotiate Enable HTTP Negotiate Authentication (H - req GSS-lib)\n"
" --digest Enable HTTP Digest Authentication (H)");
puts(" --disable-eprt Prevents curl from using EPRT or LPRT (F)\n"
" --disable-epsv Prevents curl from using EPSV (F)\n"
" -D/--dump-header <file> Write the headers to this file\n"
" --egd-file <file> EGD socket path for random data (SSL)\n"
#ifdef USE_ENVIRONMENT
" --environment Write result codes to environment variables (RISC OS)\n"
#endif
" -e/--referer Referer page (H)");
puts(" -E/--cert <cert[:passwd]> Specifies your certificate file and password (HTTPS)\n"
" --cert-type <type> Specifies certificate file type (DER/PEM/ENG) (HTTPS)\n"
" --key <key> Specifies private key file (HTTPS)\n"
" --key-type <type> Specifies private key file type (DER/PEM/ENG) (HTTPS)\n"
" --pass <pass> Specifies passphrase for the private key (HTTPS)");
puts(" --engine <eng> Specifies the crypto engine to use (HTTPS)\n"
" --cacert <file> CA certificate to verify peer against (SSL)\n"
" --capath <directory> CA directory (made using c_rehash) to verify\n"
" peer against (SSL)\n"
" --ciphers <list> What SSL ciphers to use (SSL)\n"
" --compressed Request a compressed response (using deflate or gzip).");
puts(" --connect-timeout <seconds> Maximum time allowed for connection\n"
" --create-dirs Create the necessary local directory hierarchy\n"
" --crlf Convert LF to CRLF in upload. Useful for MVS (OS/390)\n"
" -f/--fail Fail silently (no output at all) on errors (H)\n"
" -F/--form <name=content> Specify HTTP POST data (H)\n"
" -g/--globoff Disable URL sequences and ranges using {} and []\n"
" -G/--get Send the -d data with a HTTP GET (H)");
puts(" -h/--help This help text\n"
" -H/--header <line> Custom header to pass to server. (H)\n"
" -i/--include Include the HTTP-header in the output (H)\n"
" -I/--head Fetch document info only (HTTP HEAD/FTP SIZE)");
puts(" -j/--junk-session-cookies Ignore session cookies read from file (H)\n"
" --interface <interface> Specify the interface to be used\n"
" --krb4 <level> Enable krb4 with specified security level (F)\n"
" -k/--insecure Allow curl to connect to SSL sites without certs (H)\n"
" -K/--config Specify which config file to read\n"
" -l/--list-only List only names of an FTP directory (F)\n"
" --limit-rate <rate> Limit how fast transfers to allow");
puts(" -L/--location Follow Location: hints (H)\n"
" --location-trusted Same, and continue to send authentication when \n"
" following locations, even when hostname changed\n"
" -m/--max-time <seconds> Maximum time allowed for the transfer\n"
" -M/--manual Display huge help text\n"
" -n/--netrc Must read .netrc for user name and password\n"
" --netrc-optional Use either .netrc or URL; overrides -n\n"
" --ntlm Enable HTTP NTLM authentication (H)");
puts(" -N/--no-buffer Disables the buffering of the output stream");
puts(" -o/--output <file> Write output to <file> instead of stdout\n"
" -O/--remote-name Write output to a file named as the remote file\n"
" -p/--proxytunnel Perform non-HTTP services through a HTTP proxy\n"
" -P/--ftpport <address> Use PORT with address instead of PASV when ftping (F)\n"
" -q When used as the first parameter disables .curlrc\n"
" -Q/--quote <cmd> Send QUOTE command to FTP before file transfer (F)");
puts(" -r/--range <range> Retrieve a byte range from a HTTP/1.1 or FTP server\n"
" -R/--remote-time Set the remote file's time on the local output\n"
" -s/--silent Silent mode. Don't output anything\n"
" -S/--show-error Show error. With -s, make curl show errors when they occur");
puts(" --stderr <file> Where to redirect stderr. - means stdout.\n"
" -t/--telnet-option <OPT=val> Set telnet option\n"
" --trace <file> Dump a network/debug trace to the given file\n"
" --trace-ascii <file> Like --trace but without the hex output\n"
" -T/--upload-file <file> Transfer/upload <file> to remote site\n"
" --url <URL> Another way to specify URL to work with");
puts(" -u/--user <user[:password]> Specify user and password to use\n"
" Overrides -n and --netrc-optional\n"
" -U/--proxy-user <user[:password]> Specify Proxy authentication\n"
" -v/--verbose Makes the operation more talkative\n"
" -V/--version Outputs version number then quits");
#ifdef __DJGPP__
puts(" --wdebug Turns on WATT-32 debugging under DJGPP");
#endif
puts(" -w/--write-out [format] What to output after completion\n"
" -x/--proxy <host[:port]> Use proxy. (Default port is 1080)\n"
" --random-file <file> File to use for reading random data from (SSL)\n"
" -X/--request <command> Specific request command to use");
puts(" -y/--speed-time Time needed to trig speed-limit abort. Defaults to 30\n"
" -Y/--speed-limit Stop transfer if below speed-limit for 'speed-time' secs\n"
" -z/--time-cond <time> Includes a time condition to the server (H)\n"
" -Z/--max-redirs <num> Set maximum number of redirections allowed (H)\n"
" -0/--http1.0 Force usage of HTTP 1.0 (H)\n"
" -1/--tlsv1 Force usage of TLSv1 (H)\n"
" -2/--sslv2 Force usage of SSLv2 (H)\n"
" -3/--sslv3 Force usage of SSLv3 (H)");
puts(" -#/--progress-bar Display transfer progress as a progress bar");
}
struct LongShort {
const char *letter;
const char *lname;
bool extraparam;
};
struct Configurable {
bool remote_time;
char *random_file;
char *egd_file;
char *useragent;
char *cookie; /* single line with specified cookies */
char *cookiejar; /* write to this file */
char *cookiefile; /* read from this file */
bool cookiesession; /* new session? */
bool encoding; /* Accept-Encoding please */
long authtype; /* auth bitmask */
bool use_resume;
bool resume_from_current;
bool disable_epsv;
bool disable_eprt;
int resume_from;
char *postfields;
long postfieldsize;
char *referer;
long timeout;
long connecttimeout;
long maxredirs;
char *headerfile;
char *ftpport;
char *iface;
unsigned short porttouse;
char *range;
int low_speed_limit;
int low_speed_time;
bool showerror;
char *infile;
char *userpwd;
char *proxyuserpwd;
char *proxy;
bool configread;
bool proxytunnel;
long conf;
struct getout *url_list; /* point to the first node */
struct getout *url_last; /* point to the last/current node */
struct getout *url_get; /* point to the node to fill in URL */
struct getout *url_out; /* point to the node to fill in outfile */
char *cipher_list;
char *cert;
char *cert_type;
char *cacert;
char *capath;
char *key;
char *key_type;
char *key_passwd;
char *engine;
bool crlf;
char *customrequest;
char *krb4level;
char *trace_dump; /* file to dump the network trace to, or NULL */
FILE *trace_stream;
bool trace_fopened;
bool trace_ascii;
long httpversion;
bool progressmode;
bool nobuffer;
bool globoff;
bool use_httpget;
bool insecure_ok; /* set TRUE to allow insecure SSL connects */
bool create_dirs;
char *writeout; /* %-styled format string to output */
bool writeenv; /* write results to environment, if available */
FILE *errors; /* if stderr redirect is requested */
bool errors_fopened;
struct curl_slist *quote;
struct curl_slist *postquote;
struct curl_slist *prequote;
long ssl_version;
curl_TimeCond timecond;
time_t condtime;
struct curl_slist *headers;
struct curl_httppost *httppost;
struct curl_httppost *last_post;
struct curl_slist *telnet_options;
HttpReq httpreq;
/* for bandwidth limiting features: */
size_t sendpersecond; /* send to peer */
size_t recvpersecond; /* receive from peer */
time_t lastsendtime;
size_t lastsendsize;
time_t lastrecvtime;
size_t lastrecvsize;
};
/* global variable to hold info about libcurl */
static curl_version_info_data *curlinfo;
static int parseconfig(const char *filename,
struct Configurable *config);
static char *my_get_line(FILE *fp);
static int create_dir_hierarchy(char *outfile);
static void GetStr(char **string,
char *value)
{
if(*string)
free(*string);
if(value)
*string = strdup(value);
else
*string = NULL;
}
static char *file2string(FILE *file)
{
char buffer[256];
char *ptr;
char *string=NULL;
int len=0;
int stringlen;
if(file) {
while(fgets(buffer, sizeof(buffer), file)) {
ptr= strchr(buffer, '\r');
if(ptr)
*ptr=0;
ptr= strchr(buffer, '\n');
if(ptr)
*ptr=0;
stringlen=strlen(buffer);
if(string)
string = realloc(string, len+stringlen+1);
else
string = malloc(stringlen+1);
strcpy(string+len, buffer);
len+=stringlen;
}
return string;
}
else
return NULL; /* no string */
}
static char *file2memory(FILE *file, long *size)
{
char buffer[1024];
char *string=NULL;
char *newstring=NULL;
long len=0;
long stringlen=0;
if(file) {
while((len = fread(buffer, 1, sizeof(buffer), file))) {
if(string) {
newstring = realloc(string, len+stringlen);
if(newstring)
string = newstring;
else
break; /* no more strings attached! :-) */
}
else
string = malloc(len);
memcpy(&string[stringlen], buffer, len);
stringlen+=len;
}
*size = stringlen;
return string;
}
else
return NULL; /* no string */
}
void clean_getout(struct Configurable *config)
{
struct getout *node=config->url_list;
struct getout *next;
while(node) {
next = node->next;
if(node->url)
free(node->url);
if(node->outfile)
free(node->outfile);
free(node);
node = next; /* GOTO next */
}
}
struct getout *new_getout(struct Configurable *config)
{
struct getout *node =malloc(sizeof(struct getout));
struct getout *last= config->url_last;
if(node) {
/* clear the struct */
memset(node, 0, sizeof(struct getout));
/* append this new node last in the list */
if(last)
last->next = node;
else
config->url_list = node; /* first node */
/* move the last pointer */
config->url_last = node;
}
return node;
}
/* Structure for storing the information needed to build a multiple files
* section
*/
struct multi_files {
struct curl_forms form;
struct multi_files *next;
};
/* Add a new list entry possibly with a type_name
*/
static struct multi_files *
AddMultiFiles (const char *file_name,
const char *type_name,
const char *show_filename,
struct multi_files **multi_start,
struct multi_files **multi_current)
{
struct multi_files *multi;
struct multi_files *multi_type = NULL;
struct multi_files *multi_name = NULL;
multi = (struct multi_files *)malloc(sizeof(struct multi_files));
if (multi) {
memset(multi, 0, sizeof(struct multi_files));
multi->form.option = CURLFORM_FILE;
multi->form.value = file_name;
}
else
return NULL;
if (!*multi_start)
*multi_start = multi;
if (type_name) {
multi_type = (struct multi_files *)malloc(sizeof(struct multi_files));
if (multi_type) {
memset(multi_type, 0, sizeof(struct multi_files));
multi_type->form.option = CURLFORM_CONTENTTYPE;
multi_type->form.value = type_name;
multi->next = multi_type;
multi = multi_type;
}
else {
free (multi);
return NULL;
}
}
if (show_filename) {
multi_name = (struct multi_files *)malloc(sizeof(struct multi_files));
if (multi_name) {
memset(multi_name, 0, sizeof(struct multi_files));
multi_name->form.option = CURLFORM_FILENAME;
multi_name->form.value = show_filename;
multi->next = multi_name;
multi = multi_name;
}
else {
free (multi);
return NULL;
}
}
if (*multi_current)
(*multi_current)->next = multi;
*multi_current = multi;
return *multi_current;
}
/* Free the items of the list.
*/
static void FreeMultiInfo (struct multi_files *multi_start)
{
struct multi_files *multi;
while (multi_start) {
multi = multi_start;
multi_start = multi_start->next;
free (multi);
}
}
/***************************************************************************
*
* formparse()
*
* Reads a 'name=value' paramter and builds the appropriate linked list.
*
* Specify files to upload with 'name=@filename'. Supports specified
* given Content-Type of the files. Such as ';type=<content-type>'.
*
* You may specify more than one file for a single name (field). Specify
* multiple files by writing it like:
*
* 'name=@filename,filename2,filename3'
*
* If you want content-types specified for each too, write them like:
*
* 'name=@filename;type=image/gif,filename2,filename3'
*
* If you want custom headers added for a single part, write them in a separate
* file and do like this:
*
* 'name=foo;headers=@headerfile' or why not
* 'name=@filemame;headers=@headerfile'
*
* To upload a file, but to fake the file name that will be included in the
* formpost, do like this:
*
* 'name=@filename;filename=/dev/null'
*
* This function uses curl_formadd to fulfill it's job. Is heavily based on
* the old curl_formparse code.
*
***************************************************************************/
#define FORM_FILE_SEPARATOR ','
#define FORM_TYPE_SEPARATOR ';'
static int formparse(char *input,
struct curl_httppost **httppost,
struct curl_httppost **last_post)
{
/* nextarg MUST be a string in the format 'name=contents' and we'll
build a linked list with the info */
char name[256];
char *contents;
char major[128];
char minor[128];
char *contp;
const char *type = NULL;
char *sep;
char *sep2;
/* Preallocate contents to the length of input to make sure we don't
overwrite anything. */
contents = malloc(strlen(input));
contents[0] = '\000';
if(1 <= sscanf(input, "%255[^=]=%[^\n]", name, contents)) {
/* the input was using the correct format */
contp = contents;
if('@' == contp[0]) {
struct multi_files *multi_start = NULL, *multi_current = NULL;
/* we use the @-letter to indicate file name(s) */
contp++;
multi_start = multi_current=NULL;
do {
/* since this was a file, it may have a content-type specifier
at the end too, or a filename. Or both. */
char *ptr;
char *filename=NULL;
sep=strchr(contp, FORM_TYPE_SEPARATOR);
sep2=strchr(contp, FORM_FILE_SEPARATOR);
/* pick the closest */
if(sep2 && (sep2 < sep)) {
sep = sep2;
/* no type was specified! */
}
type = NULL;
if(sep) {
/* if we got here on a comma, don't do much */
if(FORM_FILE_SEPARATOR == *sep)
ptr = NULL;
else
ptr = sep+1;
*sep=0; /* terminate file name at separator */
while(ptr && (FORM_FILE_SEPARATOR!= *ptr)) {
/* pass all white spaces */
while(isspace((int)*ptr))
ptr++;
if(curl_strnequal("type=", ptr, 5)) {
/* set type pointer */
type = &ptr[5];
/* verify that this is a fine type specifier */
if(2 != sscanf(type, "%127[^/]/%127[^;,\n]",
major, minor)) {
fprintf(stderr, "Illegally formatted content-type field!\n");
free(contents);
FreeMultiInfo (multi_start);
return 2; /* illegal content-type syntax! */
}
/* now point beyond the content-type specifier */
sep = (char *)type + strlen(major)+strlen(minor)+1;
*sep=0; /* zero terminate type string */
ptr=sep+1;
}
else if(curl_strnequal("filename=", ptr, 9)) {
filename = &ptr[9];
ptr=strchr(filename, FORM_TYPE_SEPARATOR);
if(!ptr) {
ptr=strchr(filename, FORM_FILE_SEPARATOR);
}
if(ptr) {
*ptr=0; /* zero terminate */
ptr++;
}
}
else
/* confusion, bail out of loop */
break;
}
/* find the following comma */
if(ptr)
sep=strchr(ptr, FORM_FILE_SEPARATOR);
else
sep=NULL;
}
else {
sep=strchr(contp, FORM_FILE_SEPARATOR);
}
if(sep) {
/* the next file name starts here */
*sep =0;
sep++;
}
/* if type == NULL curl_formadd takes care of the problem */
if (!AddMultiFiles (contp, type, filename, &multi_start,
&multi_current)) {
fprintf(stderr, "Error building form post!\n");
free(contents);
FreeMultiInfo (multi_start);
return 3;
}
contp = sep; /* move the contents pointer to after the separator */
} while(sep && *sep); /* loop if there's another file name */
/* now we add the multiple files section */
if (multi_start) {
struct curl_forms *forms = NULL;
struct multi_files *ptr = multi_start;
unsigned int i, count = 0;
while (ptr) {
ptr = ptr->next;
++count;
}
forms =
(struct curl_forms *)malloc((count+1)*sizeof(struct curl_forms));
if (!forms)
{
fprintf(stderr, "Error building form post!\n");
free(contents);
FreeMultiInfo (multi_start);
return 4;
}
for (i = 0, ptr = multi_start; i < count; ++i, ptr = ptr->next)
{
forms[i].option = ptr->form.option;
forms[i].value = ptr->form.value;
}
forms[count].option = CURLFORM_END;
FreeMultiInfo (multi_start);
if (curl_formadd (httppost, last_post,
CURLFORM_COPYNAME, name,
CURLFORM_ARRAY, forms, CURLFORM_END) != 0) {
fprintf(stderr, "curl_formadd failed!\n");
free(forms);
free(contents);
return 5;
}
free(forms);
}
}
else {
if( contp[0]=='<' ) {
if (curl_formadd (httppost, last_post,
CURLFORM_COPYNAME, name,
CURLFORM_FILECONTENT, contp+1, CURLFORM_END) != 0) {
fprintf(stderr, "curl_formadd failed!\n");
free(contents);
return 6;
}
}
else {
if (curl_formadd (httppost, last_post,
CURLFORM_COPYNAME, name,
CURLFORM_COPYCONTENTS, contp, CURLFORM_END) != 0) {
fprintf(stderr, "curl_formadd failed!\n");
free(contents);
return 7;
}
}
}
}
else {
fprintf(stderr, "Illegally formatted input field!\n");
free(contents);
return 1;
}
free(contents);
return 0;
}
typedef enum {
PARAM_OK,
PARAM_OPTION_AMBIGUOUS,
PARAM_OPTION_UNKNOWN,
PARAM_REQUIRES_PARAMETER,
PARAM_BAD_USE,
PARAM_HELP_REQUESTED,
PARAM_GOT_EXTRA_PARAMETER,
PARAM_LAST
} ParameterError;
static void cleanarg(char *str)
{
#ifdef HAVE_WRITABLE_ARGV
/* now that GetStr has copied the contents of nextarg, wipe the next
* argument out so that the username:password isn't displayed in the
* system process list */
if (str) {
size_t len = strlen(str);
memset(str, ' ', len);
}
#else
(void)str;
#endif
}
static ParameterError getparameter(char *flag, /* f or -long-flag */
char *nextarg, /* NULL if unset */
bool *usedarg, /* set to TRUE if the arg
has been used */
struct Configurable *config)
{
char letter;
char subletter=0; /* subletters can only occur on long options */
const char *parse=NULL;
int res;
unsigned int j;
time_t now;
int hit=-1;
bool longopt=FALSE;
bool singleopt=FALSE; /* when true means '-o foo' used '-ofoo' */
/* single-letter,
long-name,
boolean whether it takes an additional argument
*/
struct LongShort aliases[]= {
{"9", "crlf", FALSE},
{"8", "stderr", TRUE},
{"7", "interface", TRUE},
{"6", "krb4", TRUE},
/* all these ones, starting with 5 as a short-option have *no* short
option to mention. */
{"5", "url", TRUE},
{"5a", "random-file", TRUE},
{"5b", "egd-file", TRUE},
{"5c", "connect-timeout", TRUE},
{"5d", "ciphers", TRUE},
{"5e", "disable-epsv", FALSE},
#ifdef USE_ENVIRONMENT
{"5f", "environment", FALSE},
#endif
{"5g", "trace", TRUE},
{"5h", "trace-ascii", TRUE},
{"5i", "limit-rate", TRUE},
{"5j", "compressed", FALSE}, /* might take an arg someday */
{"5k", "digest", FALSE},
{"5l", "negotiate", FALSE},
{"5m", "ntlm", FALSE},
{"5n", "basic", FALSE},
{"5o", "anyauth", FALSE},
#ifdef __DJGPP__
{"5p", "wdebug", FALSE},
#endif
{"0", "http1.0", FALSE},
{"1", "tlsv1", FALSE},
{"2", "sslv2", FALSE},
{"3", "sslv3", FALSE},
{"a", "append", FALSE},
{"A", "user-agent", TRUE},
{"b", "cookie", TRUE},
{"B", "ftp-ascii", FALSE}, /* this long format is OBSOLETE now! */
{"B", "use-ascii", FALSE},
{"c", "cookie-jar", TRUE},
{"C", "continue-at", TRUE},
{"d", "data", TRUE},
{"da", "data-ascii", TRUE},
{"db", "data-binary", TRUE},
{"D", "dump-header", TRUE},
{"e", "referer", TRUE},
{"E", "cert", TRUE},
{"Ea", "cacert", TRUE},
{"Eb","cert-type", TRUE},
{"Ec","key", TRUE},
{"Ed","key-type", TRUE},
{"Ee","pass", TRUE},
{"Ef","engine", TRUE},
{"Eg","capath ", TRUE},
{"f", "fail", FALSE},
{"F", "form", TRUE},
{"g", "globoff", FALSE},
{"G", "get", FALSE},
{"h", "help", FALSE},
{"H", "header", TRUE},
{"i", "include", FALSE},
{"I", "head", FALSE},
{"j", "junk-session-cookies", FALSE},
{"k", "insecure", FALSE},
{"K", "config", TRUE},
{"l", "list-only", FALSE},
{"L", "location", FALSE},
{"Lt", "location-trusted", FALSE},
{"m", "max-time", TRUE},
{"M", "manual", FALSE},
{"n", "netrc", FALSE},
{"no", "netrc-optional", FALSE},
{"N", "no-buffer", FALSE},
{"o", "output", TRUE},
{"O", "remote-name", FALSE},
{"p", "proxytunnel", FALSE},
{"P", "ftpport", TRUE},
{"q", "disable", FALSE},
{"Q", "quote", TRUE},
{"r", "range", TRUE},
{"R", "remote-time", FALSE},
{"s", "silent", FALSE},
{"S", "show-error", FALSE},
{"t", "telnet-options", TRUE},
{"T", "upload-file", TRUE},
{"u", "user", TRUE},
{"U", "proxy-user", TRUE},
{"v", "verbose", FALSE},
{"V", "version", FALSE},
{"w", "write-out", TRUE},
{"x", "proxy", TRUE},
{"X", "request", TRUE},
{"X", "http-request", TRUE}, /* OBSOLETE VERSION */
{"Y", "speed-limit", TRUE},
{"y", "speed-time", TRUE},
{"z", "time-cond", TRUE},
{"Z", "max-redirs", TRUE},
{"#", "progress-bar",FALSE},
{"@", "create-dirs", FALSE},
};
if(('-' != flag[0]) ||
(('-' == flag[0]) && ('-' == flag[1]))) {
/* this should be a long name */
char *word=('-' == flag[0])?flag+2:flag;
int fnam=strlen(word);
int numhits=0;
for(j=0; j< sizeof(aliases)/sizeof(aliases[0]); j++) {
if(curl_strnequal(aliases[j].lname, word, fnam)) {
longopt = TRUE;
numhits++;
if(curl_strequal(aliases[j].lname, word)) {
parse = aliases[j].letter;
hit = j;
numhits = 1; /* a single unique hit */
break;
}
parse = aliases[j].letter;
hit = j;
}
}
if(numhits>1) {
/* this is at least the second match! */
return PARAM_OPTION_AMBIGUOUS;
}
if(hit < 0) {
return PARAM_OPTION_UNKNOWN;
}
}
else {
flag++; /* prefixed with one dash, pass it */
hit=-1;
parse = flag;
}
do {
/* we can loop here if we have multiple single-letters */
if(!longopt)
letter = parse?*parse:'\0';
else {
letter = parse[0];
subletter = parse[1];
}
*usedarg = FALSE; /* default is that we don't use the arg */
#if 0
fprintf(stderr, "OPTION: %c %s\n", letter, nextarg?nextarg:"<null>");
#endif
if(hit < 0) {
for(j=0; j< sizeof(aliases)/sizeof(aliases[0]); j++) {
if(letter == aliases[j].letter[0]) {
hit = j;
break;
}
}
if(hit < 0) {
return PARAM_OPTION_UNKNOWN;
}
}
if(hit < 0) {
return PARAM_OPTION_UNKNOWN;
}
if(!longopt && aliases[hit].extraparam && parse[1]) {
nextarg=(char *)&parse[1]; /* this is the actual extra parameter */
singleopt=TRUE; /* don't loop anymore after this */
}
else if(!nextarg && aliases[hit].extraparam) {
return PARAM_REQUIRES_PARAMETER;
}
else if(nextarg && aliases[hit].extraparam)
*usedarg = TRUE; /* mark it as used */
switch(letter) {
case '9': /* there is no short letter for this */
/* LF -> CRLF conversinon? */
config->crlf = TRUE;
break;
case '8': /* there is no short letter for this */
if(strcmp(nextarg, "-")) {
config->errors = fopen(nextarg, "wt");
config->errors_fopened = TRUE;
}
else
config->errors = stdout;
break;
case '7': /* there is no short letter for this */
/* interface */
GetStr(&config->iface, nextarg);
break;
case '6': /* there is no short letter for this */
/* krb4 level string */
GetStr(&config->krb4level, nextarg);
break;
case '5':
switch(subletter) {
case 'a': /* random-file */
GetStr(&config->random_file, nextarg);
break;
case 'b': /* egd-file */
GetStr(&config->egd_file, nextarg);
break;
case 'c': /* connect-timeout */
config->connecttimeout=atoi(nextarg);
break;
case 'd': /* ciphers */
GetStr(&config->cipher_list, nextarg);
break;
case 'e': /* --disable-epsv */
config->disable_epsv ^= TRUE;
break;
case 'f': /* --disable-eprt */
config->disable_eprt ^= TRUE;
break;
#ifdef USE_ENVIRONMENT
case 'f':
config->writeenv ^= TRUE;
break;
#endif
case 'g': /* --trace */
GetStr(&config->trace_dump, nextarg);
break;
case 'h': /* --trace-ascii */
GetStr(&config->trace_dump, nextarg);
config->trace_ascii = TRUE;
break;
case 'i': /* --limit-rate */
{
/* We support G, M, K too */
char *unit;
unsigned long value = strtol(nextarg, &unit, 0);
switch(nextarg[strlen(nextarg)-1]) {
case 'G':
case 'g':
value *= 1024*1024*1024;
break;
case 'M':
case 'm':
value *= 1024*1024;
break;
case 'K':
case 'k':
value *= 1024;
break;
}
config->recvpersecond = value;
config->sendpersecond = value;
}
break;
case 'j': /* --compressed */
config->encoding ^= TRUE;
break;
case 'k': /* --digest */
config->authtype = CURLAUTH_DIGEST;
break;
case 'l': /* --negotiate */
config->authtype = CURLAUTH_GSSNEGOTIATE;
break;
case 'm': /* --ntlm */
config->authtype = CURLAUTH_NTLM;
break;
case 'n': /* --basic for completeness */
config->authtype = CURLAUTH_BASIC;
break;
case 'o': /* --anyauth, let libcurl pick it */
config->authtype = CURLAUTH_ANY;
break;
#ifdef __DJGPP__
case 'p': /* --wdebug */
dbug_init();
break;
#endif
default: /* the URL! */
{
struct getout *url;
if(config->url_get || (config->url_get=config->url_list)) {
/* there's a node here, if it already is filled-in continue to find
an "empty" node */
while(config->url_get && (config->url_get->flags&GETOUT_URL))
config->url_get = config->url_get->next;
}
/* now there might or might not be an available node to fill in! */
if(config->url_get)
/* existing node */
url = config->url_get;
else
/* there was no free node, create one! */
url=new_getout(config);
if(url) {
/* fill in the URL */
GetStr(&url->url, nextarg);
url->flags |= GETOUT_URL;
}
}
}
break;
case '#': /* added 19990617 larsa */
config->progressmode ^= CURL_PROGRESS_BAR;
break;
case '0':
/* HTTP version 1.0 */
config->httpversion = CURL_HTTP_VERSION_1_0;
break;
case '1':
/* TLS version 1 */
config->ssl_version = CURL_SSLVERSION_TLSv1;
break;
case '2':
/* SSL version 2 */
config->ssl_version = CURL_SSLVERSION_SSLv2;
break;
case '3':
/* SSL version 3 */
config->ssl_version = CURL_SSLVERSION_SSLv3;
break;
case 'a':
/* This makes the FTP sessions use APPE instead of STOR */
config->conf ^= CONF_FTPAPPEND;
break;
case 'A':
/* This specifies the User-Agent name */
GetStr(&config->useragent, nextarg);
break;
case 'b': /* cookie string coming up: */
if(nextarg[0] == '@') {
nextarg++;
}
else if(strchr(nextarg, '=')) {
/* A cookie string must have a =-letter */
GetStr(&config->cookie, nextarg);
break;
}
/* We have a cookie file to read from! */
GetStr(&config->cookiefile, nextarg);
break;
case 'B':
/* use ASCII/text when transfering */
config->conf ^= CONF_GETTEXT;
break;
case 'c':
/* get the file name to dump all cookies in */
GetStr(&config->cookiejar, nextarg);
break;
case 'C':
/* This makes us continue an ftp transfer at given position */
if(!curl_strequal(nextarg, "-")) {
config->resume_from= atoi(nextarg);
config->resume_from_current = FALSE;
}
else {
config->resume_from_current = TRUE;
config->resume_from = 0;
}
config->use_resume=TRUE;
break;
case 'd':
/* postfield data */
{
char *postdata=NULL;
if('@' == *nextarg) {
/* the data begins with a '@' letter, it means that a file name
or - (stdin) follows */
FILE *file;
nextarg++; /* pass the @ */
if(curl_strequal("-", nextarg))
file = stdin;
else
file = fopen(nextarg, "rb");
if(subletter == 'b') /* forced binary */
postdata = file2memory(file, &config->postfieldsize);
else
postdata = file2string(file);
if(file && (file != stdin))
fclose(file);
}
else {
GetStr(&postdata, nextarg);
}
if(config->postfields) {
/* we already have a string, we append this one
with a separating &-letter */
char *oldpost=config->postfields;
config->postfields=aprintf("%s&%s", oldpost, postdata);
free(oldpost);
free(postdata);
}
else
config->postfields=postdata;
}
/*
We can't set the request type here, as this data might be used in
a simple GET if -G is used. Already or soon.
if(SetHTTPrequest(HTTPREQ_SIMPLEPOST, &config->httpreq))
return PARAM_BAD_USE;
*/
break;
case 'D':
/* dump-header to given file name */
GetStr(&config->headerfile, nextarg);
break;
case 'e':
{
char *ptr = strstr(nextarg, ";auto");
if(ptr) {
/* Automatic referer requested, this may be combined with a
set initial one */
config->conf |= CONF_AUTO_REFERER;
*ptr = 0; /* zero terminate here */
}
GetStr(&config->referer, nextarg);
}
break;
case 'E':
switch(subletter) {
case 'a': /* CA info PEM file */
/* CA info PEM file */
GetStr(&config->cacert, nextarg);
break;
case 'b': /* cert file type */
GetStr(&config->cert_type, nextarg);
break;
case 'c': /* private key file */
GetStr(&config->key, nextarg);
break;
case 'd': /* private key file type */
GetStr(&config->key_type, nextarg);
break;
case 'e': /* private key passphrase */
GetStr(&config->key_passwd, nextarg);
cleanarg(nextarg);
break;
case 'f': /* crypto engine */
GetStr(&config->engine, nextarg);
break;
case 'g': /* CA info PEM file */
/* CA cert directory */
GetStr(&config->capath, nextarg);
break;
default: /* certificate file */
{
char *ptr = strchr(nextarg, ':');
/* Since we live in a world of weirdness and confusion, the win32
dudes can use : when using drive letters and thus
c:\file:password needs to work. In order not to break
compatibility, we still use : as separator, but we try to detect
when it is used for a file name! On windows. */
#ifdef WIN32
if(ptr &&
(ptr == &nextarg[1]) &&
(nextarg[2] == '\\') &&
(isalpha((int)nextarg[0])) )
/* colon in the second column, followed by a backslash, and the
first character is an alphabetic letter:
this is a drive letter colon */
ptr = strchr(&nextarg[3], ':'); /* find the next one instead */
#endif
if(ptr) {
/* we have a password too */
*ptr=0;
ptr++;
GetStr(&config->key_passwd, ptr);
}
GetStr(&config->cert, nextarg);
cleanarg(nextarg);
}
}
break;
case 'f':
/* fail hard on errors */
config->conf ^= CONF_FAILONERROR;
break;
case 'F':
/* "form data" simulation, this is a little advanced so lets do our best
to sort this out slowly and carefully */
if(formparse(nextarg,
&config->httppost,
&config->last_post))
return PARAM_BAD_USE;
if(SetHTTPrequest(HTTPREQ_POST, &config->httpreq))
return PARAM_BAD_USE;
break;
case 'g': /* g disables URLglobbing */
config->globoff ^= TRUE;
break;
case 'G': /* HTTP GET */
config->use_httpget = TRUE;
break;
case 'h': /* h for help */
help();
return PARAM_HELP_REQUESTED;
case 'H':
/* A custom header to append to a list */
config->headers = curl_slist_append(config->headers, nextarg);
break;
case 'i':
config->conf ^= CONF_HEADER; /* include the HTTP header as well */
break;
case 'j':
config->cookiesession ^= TRUE;
break;
case 'I':
/*
* This is a bit tricky. We either SET both bits, or we clear both
* bits. Let's not make any other outcomes from this.
*/
if((CONF_HEADER|CONF_NOBODY) !=
(config->conf&(CONF_HEADER|CONF_NOBODY)) ) {
/* one of them weren't set, set both */
config->conf |= (CONF_HEADER|CONF_NOBODY);
if(SetHTTPrequest(HTTPREQ_HEAD, &config->httpreq))
return PARAM_BAD_USE;
}
else {
/* both were set, clear both */
config->conf &= ~(CONF_HEADER|CONF_NOBODY);
if(SetHTTPrequest(HTTPREQ_GET, &config->httpreq))
return PARAM_BAD_USE;
}
break;
case 'k': /* allow insecure SSL connects */
config->insecure_ok ^= TRUE;
break;
case 'K': /* parse config file */
res = parseconfig(nextarg, config);
config->configread = TRUE;
if(res)
return res;
break;
case 'l':
config->conf ^= CONF_FTPLISTONLY; /* only list the names of the FTP dir */
break;
case 'L':
config->conf ^= CONF_FOLLOWLOCATION; /* Follow Location: HTTP headers */
switch (subletter) {
case 't':
/* Continue to send authentication (user+password) when following
* locations, even when hostname changed */
config->conf ^= CONF_UNRESTRICTED_AUTH;
break;
}
break;
case 'm':
/* specified max time */
config->timeout = atoi(nextarg);
break;
case 'M': /* M for manual, huge help */
hugehelp();
return PARAM_HELP_REQUESTED;
case 'n':
switch(subletter) {
case 'o': /* CA info PEM file */
/* use .netrc or URL */
config->conf ^= CONF_NETRC_OPT;
break;
default:
/* pick info from .netrc, if this is used for http, curl will
automatically enfore user+password with the request */
config->conf ^= CONF_NETRC;
break;
}
break;
case 'N':
/* disable the output I/O buffering */
config->nobuffer ^= 1;
break;
case 'o':
case 'O':
/* output file */
{
struct getout *url;
if(config->url_out || (config->url_out=config->url_list)) {
/* there's a node here, if it already is filled-in continue to find
an "empty" node */
while(config->url_out && (config->url_out->flags&GETOUT_OUTFILE))
config->url_out = config->url_out->next;
}
/* now there might or might not be an available node to fill in! */
if(config->url_out)
/* existing node */
url = config->url_out;
else
/* there was no free node, create one! */
url=new_getout(config);
if(url) {
/* fill in the outfile */
if('o' == letter)
GetStr(&url->outfile, nextarg);
else {
url->outfile=NULL; /* leave it */
url->flags |= GETOUT_USEREMOTE;
}
url->flags |= GETOUT_OUTFILE;
}
}
break;
case 'P':
/* This makes the FTP sessions use PORT instead of PASV */
/* use <eth0> or <192.168.10.10> style addresses. Anything except
this will make us try to get the "default" address.
NOTE: this is a changed behaviour since the released 4.1!
*/
GetStr(&config->ftpport, nextarg);
break;
case 'p':
/* proxy tunnel for non-http protocols */
config->proxytunnel ^= TRUE;
break;
case 'q': /* if used first, already taken care of, we do it like
this so we don't cause an error! */
break;
case 'Q':
/* QUOTE command to send to FTP server */
switch(nextarg[0]) {
case '-':
/* prefixed with a dash makes it a POST TRANSFER one */
nextarg++;
config->postquote = curl_slist_append(config->postquote, nextarg);
break;
case '+':
/* prefixed with a plus makes it a just-before-transfer one */
nextarg++;
config->prequote = curl_slist_append(config->prequote, nextarg);
break;
default:
config->quote = curl_slist_append(config->quote, nextarg);
}
break;
case 'r':
/* byte range requested */
GetStr(&config->range, nextarg);
break;
case 'R':
/* use remote file's time */
config->remote_time ^= TRUE;
break;
case 's':
/* don't show progress meter, don't show errors : */
config->conf |= (CONF_MUTE|CONF_NOPROGRESS);
config->showerror ^= TRUE; /* toggle off */
break;
case 'S':
/* show errors */
config->showerror ^= TRUE; /* toggle on if used with -s */
break;
case 't':
/* Telnet options */
config->telnet_options =
curl_slist_append(config->telnet_options, nextarg);
break;
case 'T':
/* we are uploading */
config->conf |= CONF_UPLOAD;
if(!curl_strequal("-", nextarg))
/* make - equal stdin */
GetStr(&config->infile, nextarg);
break;
case 'u':
/* user:password */
GetStr(&config->userpwd, nextarg);
cleanarg(nextarg);
break;
case 'U':
/* Proxy user:password */
GetStr(&config->proxyuserpwd, nextarg);
cleanarg(nextarg);
break;
case 'v':
config->conf ^= CONF_VERBOSE; /* talk a lot */
break;
case 'V':
{
const char **proto;
printf(CURL_ID "%s\n", curl_version());
if (curlinfo->protocols) {
printf("Protocols: ");
for (proto=curlinfo->protocols; *proto; ++proto) {
printf("%s ", *proto);
}
puts(""); /* newline */
}
if(curlinfo->features) {
unsigned int i;
struct feat {
const char *name;
int bitmask;
};
struct feat feats[] = {
{"IPv6", CURL_VERSION_IPV6},
{"krb4", CURL_VERSION_KERBEROS4},
{"SSL", CURL_VERSION_SSL},
{"libz", CURL_VERSION_LIBZ},
{"NTLM", CURL_VERSION_NTLM},
{"GSS-Negotiate", CURL_VERSION_GSSNEGOTIATE},
{"Debug", CURL_VERSION_DEBUG}
};
printf("Features: ");
for(i=0; i<sizeof(feats)/sizeof(feats[0]); i++) {
if(curlinfo->features & feats[i].bitmask)
printf("%s ", feats[i].name);
}
puts(""); /* newline */
}
}
return PARAM_HELP_REQUESTED;
case 'w':
/* get the output string */
if('@' == *nextarg) {
/* the data begins with a '@' letter, it means that a file name
or - (stdin) follows */
FILE *file;
nextarg++; /* pass the @ */
if(curl_strequal("-", nextarg))
file = stdin;
else
file = fopen(nextarg, "r");
config->writeout = file2string(file);
if(file && (file != stdin))
fclose(file);
}
else
GetStr(&config->writeout, nextarg);
break;
case 'x':
/* proxy */
GetStr(&config->proxy, nextarg);
break;
case 'X':
/* set custom request */
GetStr(&config->customrequest, nextarg);
break;
case 'y':
/* low speed time */
config->low_speed_time = atoi(nextarg);
if(!config->low_speed_limit)
config->low_speed_limit = 1;
break;
case 'Y':
/* low speed limit */
config->low_speed_limit = atoi(nextarg);
if(!config->low_speed_time)
config->low_speed_time=30;
break;
case 'z': /* time condition coming up */
switch(*nextarg) {
case '+':
nextarg++;
default:
/* If-Modified-Since: (section 14.28 in RFC2068) */
config->timecond = CURL_TIMECOND_IFMODSINCE;
break;
case '-':
/* If-Unmodified-Since: (section 14.24 in RFC2068) */
config->timecond = CURL_TIMECOND_IFUNMODSINCE;
nextarg++;
break;
case '=':
/* Last-Modified: (section 14.29 in RFC2068) */
config->timecond = CURL_TIMECOND_LASTMOD;
nextarg++;
break;
}
now=time(NULL);
config->condtime=curl_getdate(nextarg, &now);
if(-1 == (int)config->condtime) {
/* now let's see if it is a file name to get the time from instead! */
struct stat statbuf;
if(-1 == stat(nextarg, &statbuf)) {
/* failed, remove time condition */
config->timecond = CURL_TIMECOND_NONE;
}
else {
/* pull the time out from the file */
config->condtime = statbuf.st_mtime;
}
}
break;
case 'Z':
/* specified max no of redirects (http(s)) */
config->maxredirs = atoi(nextarg);
break;
case '@':
config->create_dirs = TRUE;
break;
default: /* unknown flag */
return PARAM_OPTION_UNKNOWN;
}
hit = -1;
} while(!longopt && !singleopt && *++parse && !*usedarg);
return PARAM_OK;
}
static int parseconfig(const char *filename,
struct Configurable *config)
{
int res;
FILE *file;
char filebuffer[512];
bool usedarg;
char *home;
if(!filename || !*filename) {
/* NULL or no file name attempts to load .curlrc from the homedir! */
#define CURLRC DOT_CHAR "curlrc"
filename = CURLRC; /* sensible default */
home = curl_getenv("HOME"); /* portable environment reader */
if(home) {
if(strlen(home)<(sizeof(filebuffer)-strlen(CURLRC))) {
snprintf(filebuffer, sizeof(filebuffer),
"%s%s%s", home, DIR_CHAR, CURLRC);
filename = filebuffer;
}
curl_free(home); /* we've used it, now free it */
}
}
if(strcmp(filename,"-"))
file = fopen(filename, "r");
else
file = stdin;
if(file) {
char *line;
char *aline;
char *option;
char *param;
int lineno=0;
bool alloced_param;
#define isseparator(x) (((x)=='=') || ((x) == ':'))
while (NULL != (aline = my_get_line(file))) {
lineno++;
line = aline;
alloced_param=FALSE;
/* lines with # in the fist column is a comment! */
while(isspace((int)*line))
line++;
switch(*line) {
case '#':
case '/':
case '\r':
case '\n':
case '*':
case '\0':
free(aline);
continue;
}
/* the option keywords starts here */
option = line;
while(*line && !isspace((int)*line) && !isseparator(*line))
line++;
/* ... and has ended here */
*line++=0; /* zero terminate, we have a local copy of the data */
#ifdef DEBUG_CONFIG
fprintf(stderr, "GOT: %s\n", option);
#endif
/* pass spaces and separator(s) */
while(isspace((int)*line) || isseparator(*line))
line++;
/* the parameter starts here (unless quoted) */
if(*line == '\"') {
char *ptr;
/* quoted parameter, do the qoute dance */
line++;
param=strdup(line); /* parameter */
alloced_param=TRUE;
ptr=param;
while(*line && (*line != '\"')) {
if(*line == '\\') {
char out;
line++;
/* default is to output the letter after the backslah */
switch(out = *line) {
case '\0':
continue; /* this'll break out of the loop */
case 't':
out='\t';
break;
case 'n':
out='\n';
break;
case 'r':
out='\r';
break;
case 'v':
out='\v';
break;
}
*ptr++=out;
line++;
}
else
*ptr++=*line++;
}
*ptr=0; /* always zero terminate */
}
else {
param=line; /* parameter starts here */
while(*line && !isspace((int)*line))
line++;
*line=0; /* zero terminate */
}
#ifdef DEBUG_CONFIG
fprintf(stderr, "PARAM: \"%s\"\n", param);
#endif
res = getparameter(option, param, &usedarg, config);
if(*param && !usedarg)
/* we passed in a parameter that wasn't used! */
res = PARAM_GOT_EXTRA_PARAMETER;
if(res != PARAM_OK) {
/* the help request isn't really an error */
if(!strcmp(filename, "-")) {
filename=(char *)"<stdin>";
}
if(PARAM_HELP_REQUESTED != res) {
const char *reason;
switch(res) {
default:
case PARAM_GOT_EXTRA_PARAMETER:
reason = "had unsupported trailing garbage";
break;
case PARAM_OPTION_UNKNOWN:
reason = "is unknown";
break;
case PARAM_OPTION_AMBIGUOUS:
reason = "is ambiguous";
break;
case PARAM_REQUIRES_PARAMETER:
reason = "requires parameter";
break;
case PARAM_BAD_USE:
reason = "is badly used here";
break;
}
fprintf(stderr, "%s:%d: warning: '%s' %s\n",
filename, lineno, option, reason);
}
}
if(alloced_param)
free(param);
free(aline);
}
if(file != stdin)
fclose(file);
}
return 0;
}
static void go_sleep(long ms)
{
#ifdef HAVE_POLL
/* portable subsecond "sleep" */
poll((void *)0, 0, ms);
#else
/* systems without poll() need other solutions */
#ifdef WIN32
/* Windows offers a millisecond sleep */
Sleep(ms);
#else
/* Other systems must use select() for this */
struct timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = ms * 1000;
select(0, NULL, NULL, NULL, &timeout);
#endif
#endif
}
struct OutStruct {
char *filename;
FILE *stream;
struct Configurable *config;
};
int my_fwrite(void *buffer, size_t size, size_t nmemb, void *stream)
{
int rc;
struct OutStruct *out=(struct OutStruct *)stream;
struct Configurable *config = out->config;
if(out && !out->stream) {
/* open file for writing */
out->stream=fopen(out->filename, "wb");
if(!out->stream)
return -1; /* failure */
}
if(config->recvpersecond) {
/*
* We know when we received data the previous time. We know how much data
* we get now. Make sure that this is not faster than we are told to run.
* If we're faster, sleep a while *before* doing the fwrite() here.
*/
time_t timediff;
time_t now;
now = time(NULL);
timediff = now - config->lastrecvtime;
if( size*nmemb > config->recvpersecond*timediff) {
/* figure out how many milliseconds to rest */
go_sleep ( (size*nmemb)*1000/config->recvpersecond - timediff*1000 );
now = time(NULL);
}
config->lastrecvtime = now;
}
rc = fwrite(buffer, size, nmemb, out->stream);
if(config->nobuffer)
/* disable output buffering */
fflush(out->stream);
return rc;
}
struct InStruct {
FILE *stream;
struct Configurable *config;
};
int my_fread(void *buffer, size_t size, size_t nmemb, void *userp)
{
struct InStruct *in=(struct InStruct *)userp;
struct Configurable *config = in->config;
if(config->sendpersecond) {
/*
* We know when we sent data the previous time. We know how much data
* we sent. Make sure that this was not faster than we are told to run.
* If we're faster, sleep a while *before* doing the fread() here.
* Also, make no larger fread() than should be sent this second!
*/
time_t timediff;
time_t now;
now = time(NULL);
timediff = now - config->lastsendtime;
if( config->lastsendsize > config->sendpersecond*timediff) {
/* figure out how many milliseconds to rest */
go_sleep ( config->lastsendsize*1000/config->sendpersecond -
timediff*1000 );
now = time(NULL);
}
config->lastsendtime = now;
if(size*nmemb > config->sendpersecond) {
/* lower the size to actually read */
nmemb = config->sendpersecond;
size = 1;
}
config->lastsendsize = size*nmemb;
}
return fread(buffer, size, nmemb, in->stream);
}
struct ProgressData {
int calls;
double prev;
int width;
FILE *out; /* where to write everything to */
int initial_size;
};
int myprogress (void *clientp,
double dltotal,
double dlnow,
double ultotal,
double ulnow)
{
/* The original progress-bar source code was written for curl by Lars Aas,
and this new edition inherites some of his concepts. */
char line[256];
char outline[256];
char format[40];
double frac;
double percent;
int barwidth;
int num;
int i;
struct ProgressData *bar = (struct ProgressData *)clientp;
double total = dltotal + ultotal + bar->initial_size;
double point = dlnow + ulnow + bar->initial_size; /* we've come this far */
bar->calls++; /* simply count invokes */
if(0 == total) {
int prevblock = (int)bar->prev / 1024;
int thisblock = (int)point / 1024;
while ( thisblock > prevblock ) {
fprintf( bar->out, "#" );
prevblock++;
}
}
else {
frac = point / total;
percent = frac * 100.0f;
barwidth = bar->width - 7;
num = (int) (((double)barwidth) * frac);
i = 0;
for ( i = 0; i < num; i++ ) {
line[i] = '#';
}
line[i] = '\0';
sprintf( format, "%%-%ds %%5.1f%%%%", barwidth );
sprintf( outline, format, line, percent );
fprintf( bar->out, "\r%s", outline );
}
bar->prev = point;
return 0;
}
static
void progressbarinit(struct ProgressData *bar,
struct Configurable *config)
{
#ifdef __EMX__
/* 20000318 mgs */
int scr_size [2];
#endif
char *colp;
memset(bar, 0, sizeof(struct ProgressData));
/* pass this through to progress function so
* it can display progress towards total file
* not just the part that's left. (21-may-03, dbyron) */
if (config->use_resume)
bar->initial_size = config->resume_from;
/* TODO: get terminal width through ansi escapes or something similar.
try to update width when xterm is resized... - 19990617 larsa */
#ifndef __EMX__
/* 20000318 mgs
* OS/2 users most likely won't have this env var set, and besides that
* we're using our own way to determine screen width */
colp = curl_getenv("COLUMNS");
if (colp != NULL) {
bar->width = atoi(colp);
curl_free(colp);
}
else
bar->width = 79;
#else
/* 20000318 mgs
* We use this emx library call to get the screen width, and subtract
* one from what we got in order to avoid a problem with the cursor
* advancing to the next line if we print a string that is as long as
* the screen is wide. */
_scrsize(scr_size);
bar->width = scr_size[0] - 1;
#endif
bar->out = config->errors;
}
static
void dump(const char *text,
FILE *stream, unsigned char *ptr, size_t size,
bool nohex)
{
size_t i;
size_t c;
unsigned int width=0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stream, "%s, %d bytes (0x%x)\n", text, size, size);
for(i=0; i<size; i+= width) {
fprintf(stream, "%04x: ", i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i+c < size)
fprintf(stream, "%02x ", ptr[i+c]);
else
fputs(" ", stream);
}
for(c = 0; (c < width) && (i+c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if (nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
i+=(c+2-width);
break;
}
fprintf(stream, "%c",
(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if (nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
i+=(c+3-width);
break;
}
}
fputc('\n', stream); /* newline */
}
fflush(stream);
}
static
int my_trace(CURL *handle, curl_infotype type,
unsigned char *data, size_t size,
void *userp)
{
struct Configurable *config = (struct Configurable *)userp;
FILE *output=config->errors;
const char *text;
(void)handle; /* prevent compiler warning */
if(!config->trace_stream) {
/* open for append */
if(curl_strequal("-", config->trace_dump))
config->trace_stream = stdout;
else {
config->trace_stream = fopen(config->trace_dump, "w");
config->trace_fopened = TRUE;
}
}
if(config->trace_stream)
output = config->trace_stream;
switch (type) {
case CURLINFO_TEXT:
fprintf(output, "== Info: %s", data);
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
}
dump(text, output, data, size, config->trace_ascii);
return 0;
}
void free_config_fields(struct Configurable *config)
{
if(config->random_file)
free(config->random_file);
if(config->egd_file)
free(config->egd_file);
if(config->userpwd)
free(config->userpwd);
if(config->postfields)
free(config->postfields);
if(config->proxy)
free(config->proxy);
if(config->proxyuserpwd)
free(config->proxyuserpwd);
if(config->cookie)
free(config->cookie);
if(config->cookiefile)
free(config->cookiefile);
if(config->krb4level)
free(config->krb4level);
if(config->headerfile)
free(config->headerfile);
if(config->ftpport)
free(config->ftpport);
if(config->infile)
free(config->infile);
if(config->range)
free(config->range);
if(config->customrequest)
free(config->customrequest);
if(config->writeout)
free(config->writeout);
if(config->httppost)
curl_formfree(config->httppost);
if(config->cacert)
free(config->cacert);
if(config->capath)
free(config->capath);
if(config->cookiejar)
free(config->cookiejar);
curl_slist_free_all(config->quote); /* checks for config->quote == NULL */
curl_slist_free_all(config->postquote); /* */
curl_slist_free_all(config->headers); /* */
}
#if defined(WIN32) && !defined(__CYGWIN32__)
/* Function to find CACert bundle on a Win32 platform using SearchPath.
* (SearchPath is defined in windows.h, which is #included into libcurl)
* (Use the ASCII version instead of the unicode one!)
* The order of the directories it searches is:
* 1. application's directory
* 2. current working directory
* 3. Windows System directory (e.g. C:\windows\system32)
* 4. Windows Directory (e.g. C:\windows)
* 5. all directories along %PATH%
*/
static void FindWin32CACert(struct Configurable *config,
const char *bundle_file)
{
/* only check for cert file if "we" support SSL */
if(curlinfo->features & CURL_VERSION_SSL) {
DWORD buflen;
char *ptr = NULL;
char *retval = (char *) malloc(sizeof (TCHAR) * (MAX_PATH + 1));
if (!retval)
return;
retval[0] = '\0';
buflen = SearchPathA(NULL, bundle_file, NULL, MAX_PATH+2, retval, &ptr);
if (buflen > 0) {
GetStr(&config->cacert, retval);
}
free(retval);
}
}
#endif
static int
operate(struct Configurable *config, int argc, char *argv[])
{
char errorbuffer[CURL_ERROR_SIZE];
char useragent[128]; /* buah, we don't want a larger default user agent */
struct ProgressData progressbar;
struct getout *urlnode;
struct getout *nextnode;
struct OutStruct outs;
struct OutStruct heads;
struct InStruct input;
char *url = NULL;
URLGlob *urls=NULL;
int urlnum;
char *outfiles;
int separator = 0;
FILE *infd = stdin;
FILE *headerfilep = NULL;
char *urlbuffer=NULL;
int infilesize=-1; /* -1 means unknown */
bool stillflags=TRUE;
bool allocuseragent=FALSE;
char *httpgetfields=NULL;
CURL *curl;
int res = 0;
int i;
char *env;
#ifdef CURLDEBUG
/* this sends all memory debug messages to a logfile named memdump */
env = curl_getenv("CURL_MEMDEBUG");
if(env) {
curl_free(env);
curl_memdebug("memdump");
}
#endif
/* we get libcurl info right away */
curlinfo = curl_version_info(CURLVERSION_NOW);
errorbuffer[0]=0; /* prevent junk from being output */
main_init(); /* inits */
config->showerror=TRUE;
config->conf=CONF_DEFAULT;
config->use_httpget=FALSE;
config->create_dirs=FALSE;
if(argc>1 &&
(!curl_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 {
res = parseconfig(NULL, config);
if(res)
return res;
}
if ((argc < 2) && !config->url_list) {
helpf(NULL);
return CURLE_FAILED_INIT;
}
/* Parse options */
for (i = 1; i < argc; i++) {
if(stillflags &&
('-' == argv[i][0])) {
char *nextarg;
bool passarg;
char *origopt=argv[i];
char *flag = argv[i];
if(curl_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) {
switch(res) {
case PARAM_OPTION_AMBIGUOUS:
helpf("option %s is ambiguous\n", origopt);
break;
case PARAM_OPTION_UNKNOWN:
helpf("option %s is unknown\n", origopt);
break;
case PARAM_REQUIRES_PARAMETER:
helpf("option %s requires an extra argument!\n", origopt);
break;
case PARAM_BAD_USE:
helpf("option %s was wrongly used!\n", origopt);
break;
case PARAM_HELP_REQUESTED:
/* no text */
break;
}
clean_getout(config);
return CURLE_FAILED_INIT;
}
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)
return res;
}
}
if(!config->url_list || !config->url_list->url) {
helpf("no URL specified!\n");
return CURLE_FAILED_INIT;
}
if(NULL == config->useragent) {
/* set non-zero default values: */
snprintf(useragent, sizeof(useragent),
CURL_NAME "/" CURL_VERSION " (" OS ") " "%s", curl_version());
config->useragent= useragent;
}
else
allocuseragent = TRUE;
/* On WIN32 (non-cygwin), 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) {
env = curl_getenv("CURL_CA_BUNDLE");
if(env) {
GetStr(&config->cacert, env);
curl_free(env);
}
#if defined(WIN32) && !defined(__CYGWIN32__)
else
FindWin32CACert(config, "curl-ca-bundle.crt");
#endif
}
if (config->postfields) {
if (config->use_httpget) {
/* Use the postfields data for a http get */
httpgetfields = strdup(config->postfields);
free(config->postfields);
config->postfields = NULL;
if(SetHTTPrequest((config->conf&CONF_NOBODY?HTTPREQ_HEAD:HTTPREQ_GET),
&config->httpreq)) {
free(httpgetfields);
return PARAM_BAD_USE;
}
}
else {
if(SetHTTPrequest(HTTPREQ_SIMPLEPOST, &config->httpreq))
return PARAM_BAD_USE;
}
}
/*
* Get a curl handle to use for all forthcoming curl transfers. Cleanup
* when all transfers are done. This is supported with libcurl 7.7 and
* should not be attempted on previous versions.
*/
curl = curl_easy_init();
if(!curl)
return CURLE_FAILED_INIT;
urlnode = config->url_list;
if(config->headerfile) {
/* open file for output: */
if(strcmp(config->headerfile,"-")) {
heads.filename = config->headerfile;
headerfilep=NULL;
}
else
headerfilep=stdout;
heads.stream = headerfilep;
heads.config = config;
}
/* loop through the list of given URLs */
while(urlnode) {
/* get the full URL (it might be NULL) */
url=urlnode->url;
if(NULL == url) {
/* This node had no URL, skip it and continue to the next */
if(urlnode->outfile)
free(urlnode->outfile);
/* move on to the next URL */
nextnode=urlnode->next;
free(urlnode); /* free the node */
urlnode = nextnode;
continue; /* next please */
}
/* default output stream is stdout */
outs.stream = stdout;
outs.config = config;
if(!config->globoff) {
/* Unless explicitly shut off, we expand '{...}' and '[...]' expressions
and return total number of URLs in pattern set */
res = glob_url(&urls, url, &urlnum,
config->showerror?
(config->errors?config->errors:stderr):NULL);
if(res != CURLE_OK)
return res;
}
/* save outfile pattern before expansion */
outfiles = urlnode->outfile?strdup(urlnode->outfile):NULL;
if ((!outfiles || curl_strequal(outfiles, "-")) && urlnum > 1) {
/* multiple files extracted to stdout, insert separators! */
separator = 1;
}
for(i = 0;
(url = urls?glob_next_url(urls):(i?NULL:strdup(url)));
i++) {
char *outfile;
outfile = outfiles?strdup(outfiles):NULL;
if((urlnode->flags&GETOUT_USEREMOTE) ||
(outfile && !curl_strequal("-", outfile)) ) {
/*
* 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) {
/* Find and get the remote file name */
char * pc =strstr(url, "://");
if(pc)
pc+=3;
else
pc=url;
pc = strrchr(pc, '/');
outfile = (char *) NULL == pc ? NULL : strdup(pc+1) ;
if(!outfile) {
helpf("Remote file name has no length!\n");
return CURLE_WRITE_ERROR;
}
#if defined(__DJGPP__)
{
/* This is for DOS, and then we do some major replacing of
bad characters in the file name before using it */
char *file1=xmalloc(PATH_MAX);
strcpy(file1, msdosify(outfile));
strcpy(outfile, rename_if_dos_device_name(file1));
xfree(file1);
}
#endif /* __DJGPP__ */
}
else if(urls) {
/* fill '#1' ... '#9' terms from URL pattern */
char *storefile = outfile;
outfile = glob_match_url(storefile, urls);
free(storefile);
}
/* Create the directory hierarchy, if not pre-existant to a multiple
file output call */
if(config->create_dirs)
if (-1 == create_dir_hierarchy(outfile))
return CURLE_WRITE_ERROR;
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: */
outs.stream=(FILE *) fopen(outfile, config->resume_from?"ab":"wb");
if (!outs.stream) {
helpf("Can't open '%s'!\n", outfile);
return CURLE_WRITE_ERROR;
}
}
else {
outs.filename = outfile;
outs.stream = NULL; /* open when needed */
}
}
if(config->infile) {
/*
* We have specified a file to upload
*/
struct stat fileinfo;
/* If no file name part is given in the URL, we add this file name */
char *ptr=strstr(url, "://");
if(ptr)
ptr+=3;
else
ptr=url;
ptr = strrchr(ptr, '/');
if(!ptr || !strlen(++ptr)) {
/* The URL has no file name part, add the local file name. In order
to be able to do so, we have to create a new URL in another
buffer.*/
/* We only want the part of the local path that is on the right
side of the rightmost slash and backslash. */
char *filep = strrchr(config->infile, '/');
char *file2 = strrchr(filep?filep:config->infile, '\\');
if(file2)
filep = file2+1;
else if(filep)
filep++;
else
filep = config->infile;
/* URL encode the file name */
filep = curl_escape(filep, 0 /* use strlen */);
if(filep) {
urlbuffer=(char *)malloc(strlen(url) + strlen(filep) + 3);
if(!urlbuffer) {
helpf("out of memory\n");
return CURLE_OUT_OF_MEMORY;
}
if(ptr)
/* there is a trailing slash on the URL */
sprintf(urlbuffer, "%s%s", url, filep);
else
/* thers is no trailing slash on the URL */
sprintf(urlbuffer, "%s/%s", url, filep);
curl_free(filep);
free(url);
url = urlbuffer; /* use our new URL instead! */
}
}
/*VMS??-- Reading binary from files can be a problem... */
/*VMS?? Only FIXED, VAR etc WITHOUT implied CC will work */
/*VMS?? Others need a \n appended to a line */
/*VMS??-- Stat gives a size but this is UNRELIABLE in VMS */
/*VMS?? As a f.e. a fixed file with implied CC needs to have a byte added */
/*VMS?? for every record processed, this can by derived from Filesize & recordsize */
/*VMS?? for VARiable record files the records need to be counted! */
/*VMS?? for every record add 1 for linefeed and subtract 2 for the record header */
/*VMS?? for VARIABLE header files only the bare record data needs to be considered with one appended if implied CC */
infd=(FILE *) fopen(config->infile, "rb");
if (!infd || stat(config->infile, &fileinfo)) {
helpf("Can't open '%s'!\n", config->infile);
return CURLE_READ_ERROR;
}
infilesize=fileinfo.st_size;
}
if((config->conf&CONF_UPLOAD) &&
config->resume_from_current) {
config->resume_from = -1; /* -1 will then force get-it-yourself */
}
if(outs.stream && isatty(fileno(outs.stream)) &&
!(config->conf&(CONF_UPLOAD|CONF_HTTPPOST)))
/* we send the output to a tty and it isn't an upload operation,
therefore we switch off the progress meter */
config->conf |= CONF_NOPROGRESS;
if (urlnum > 1 && !(config->conf&CONF_MUTE)) {
fprintf(stderr, "\n[%d/%d]: %s --> %s\n",
i+1, urlnum, url, outfile ? outfile : "<stdout>");
if (separator)
printf("%s%s\n", CURLseparator, url);
}
if (httpgetfields) {
/* Find out whether the url contains a file name */
char *pc =strstr(url, "://");
char separator='?';
if(pc)
pc+=3;
else
pc=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 appead the data with an amperand separator instead! */
separator='&';
}
/*
* Then append ? followed by the get fields to the url.
*/
urlbuffer=(char *)malloc(strlen(url) + strlen(httpgetfields) + 2);
if(!urlbuffer) {
helpf("out of memory\n");
return CURLE_OUT_OF_MEMORY;
}
if (pc)
sprintf(urlbuffer, "%s%c%s", url, separator, httpgetfields);
else
/* Append / before the ? to create a well-formed url
if the url contains a hostname only
*/
sprintf(urlbuffer, "%s/?%s", url, httpgetfields);
free(url); /* free previous URL */
url = urlbuffer; /* use our new URL instead! */
}
if(!config->errors)
config->errors = stderr;
#ifdef O_BINARY
if(!outfile && !(config->conf & CONF_GETTEXT)) {
/* We get the output to stdout and we have not got the ASCII/text flag,
then set stdout to be binary */
setmode( fileno(stdout), O_BINARY );
}
#endif
curl_easy_setopt(curl, CURLOPT_SSLENGINE, config->engine);
curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1);
/* where to store */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (FILE *)&outs);
/* what call to write */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
/* for uploads */
input.stream = infd;
input.config = config;
curl_easy_setopt(curl, CURLOPT_READDATA, &input);
/* what call to read */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, my_fread);
if(config->recvpersecond) {
/* tell libcurl to use a smaller sized buffer as it allows us to
make better sleeps! 7.9.9 stuff! */
curl_easy_setopt(curl, CURLOPT_BUFFERSIZE, config->recvpersecond);
}
/* size of uploaded file: */
curl_easy_setopt(curl, CURLOPT_INFILESIZE, infilesize);
curl_easy_setopt(curl, CURLOPT_URL, url); /* what to fetch */
curl_easy_setopt(curl, CURLOPT_PROXY, config->proxy); /* proxy to use */
curl_easy_setopt(curl, CURLOPT_HEADER, config->conf&CONF_HEADER);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, config->conf&CONF_NOPROGRESS);
curl_easy_setopt(curl, CURLOPT_NOBODY, config->conf&CONF_NOBODY);
curl_easy_setopt(curl, CURLOPT_FAILONERROR,
config->conf&CONF_FAILONERROR);
curl_easy_setopt(curl, CURLOPT_UPLOAD, config->conf&CONF_UPLOAD);
curl_easy_setopt(curl, CURLOPT_FTPLISTONLY,
config->conf&CONF_FTPLISTONLY);
curl_easy_setopt(curl, CURLOPT_FTPAPPEND, config->conf&CONF_FTPAPPEND);
if (config->conf&CONF_NETRC_OPT)
curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
else if (config->conf&CONF_NETRC)
curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_REQUIRED);
else
curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_IGNORED);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION,
config->conf&CONF_FOLLOWLOCATION);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH,
config->conf&CONF_UNRESTRICTED_AUTH);
curl_easy_setopt(curl, CURLOPT_TRANSFERTEXT, config->conf&CONF_GETTEXT);
curl_easy_setopt(curl, CURLOPT_MUTE, config->conf&CONF_MUTE);
curl_easy_setopt(curl, CURLOPT_USERPWD, config->userpwd);
curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, config->proxyuserpwd);
curl_easy_setopt(curl, CURLOPT_RANGE, config->range);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errorbuffer);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, config->timeout);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, config->postfields);
/* new in libcurl 7.2: */
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, config->postfieldsize);
curl_easy_setopt(curl, CURLOPT_REFERER, config->referer);
curl_easy_setopt(curl, CURLOPT_AUTOREFERER,
config->conf&CONF_AUTO_REFERER);
curl_easy_setopt(curl, CURLOPT_USERAGENT, config->useragent);
curl_easy_setopt(curl, CURLOPT_FTPPORT, config->ftpport);
curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, config->low_speed_limit);
curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, config->low_speed_time);
curl_easy_setopt(curl, CURLOPT_RESUME_FROM,
config->use_resume?config->resume_from:0);
curl_easy_setopt(curl, CURLOPT_COOKIE, config->cookie);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, config->headers);
curl_easy_setopt(curl, CURLOPT_HTTPPOST, config->httppost);
curl_easy_setopt(curl, CURLOPT_SSLCERT, config->cert);
curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, config->cert_type);
curl_easy_setopt(curl, CURLOPT_SSLKEY, config->key);
curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, config->key_type);
curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, config->key_passwd);
/* default to strict verifyhost */
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2);
if(config->cacert || config->capath) {
if (config->cacert)
curl_easy_setopt(curl, CURLOPT_CAINFO, config->cacert);
if (config->capath)
curl_easy_setopt(curl, CURLOPT_CAPATH, config->capath);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, TRUE);
}
else
if(config->insecure_ok) {
/* new stuff needed for libcurl 7.10 */
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1);
}
if((config->conf&CONF_NOBODY) ||
config->remote_time) {
/* no body or use remote time */
curl_easy_setopt(curl, CURLOPT_FILETIME, TRUE);
}
if (config->maxredirs)
curl_easy_setopt(curl, CURLOPT_MAXREDIRS, config->maxredirs);
else
curl_easy_setopt(curl, CURLOPT_MAXREDIRS, DEFAULT_MAXREDIRS);
curl_easy_setopt(curl, CURLOPT_CRLF, config->crlf);
curl_easy_setopt(curl, CURLOPT_QUOTE, config->quote);
curl_easy_setopt(curl, CURLOPT_POSTQUOTE, config->postquote);
curl_easy_setopt(curl, CURLOPT_WRITEHEADER,
config->headerfile?&heads:NULL);
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, config->cookiefile);
/* cookie jar was added in 7.9 */
curl_easy_setopt(curl, CURLOPT_COOKIEJAR, config->cookiejar);
/* cookie session added in 7.9.7 */
curl_easy_setopt(curl, CURLOPT_COOKIESESSION, config->cookiesession);
curl_easy_setopt(curl, CURLOPT_SSLVERSION, config->ssl_version);
curl_easy_setopt(curl, CURLOPT_TIMECONDITION, config->timecond);
curl_easy_setopt(curl, CURLOPT_TIMEVALUE, config->condtime);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, config->customrequest);
curl_easy_setopt(curl, CURLOPT_STDERR, config->errors);
/* three new ones in libcurl 7.3: */
curl_easy_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, config->proxytunnel);
curl_easy_setopt(curl, CURLOPT_INTERFACE, config->iface);
curl_easy_setopt(curl, CURLOPT_KRB4LEVEL, config->krb4level);
if((config->progressmode == CURL_PROGRESS_BAR) &&
!(config->conf&(CONF_NOPROGRESS|CONF_MUTE))) {
/* we want the alternative style, then we have to implement it
ourselves! */
progressbarinit(&progressbar, config);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, myprogress);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &progressbar);
}
/* new in libcurl 7.6.2: */
curl_easy_setopt(curl, CURLOPT_TELNETOPTIONS, config->telnet_options);
/* new in libcurl 7.7: */
curl_easy_setopt(curl, CURLOPT_RANDOM_FILE, config->random_file);
curl_easy_setopt(curl, CURLOPT_EGDSOCKET, config->egd_file);
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, config->connecttimeout);
if(config->cipher_list)
curl_easy_setopt(curl, CURLOPT_SSL_CIPHER_LIST, config->cipher_list);
if(config->httpversion)
curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, config->httpversion);
/* new in libcurl 7.9.2: */
if(config->disable_epsv)
/* disable it */
curl_easy_setopt(curl, CURLOPT_FTP_USE_EPSV, FALSE);
/* new in libcurl 7.10.5 */
if(config->disable_eprt)
/* disable it */
curl_easy_setopt(curl, CURLOPT_FTP_USE_EPRT, FALSE);
/* new in libcurl 7.10.6 (default is Basic) */
if(config->authtype)
curl_easy_setopt(curl, CURLOPT_HTTPAUTH, config->authtype);
/* new in curl 7.9.7 */
if(config->trace_dump) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, config);
config->conf |= CONF_VERBOSE; /* force verbose */
}
curl_easy_setopt(curl, CURLOPT_VERBOSE, config->conf&CONF_VERBOSE);
/* new in curl 7.10 */
curl_easy_setopt(curl, CURLOPT_ENCODING,
(config->encoding) ? "" : NULL);
res = curl_easy_perform(curl);
if((config->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, config->writeout);
}
#ifdef USE_ENVIRONMENT
if (config->writeenv)
ourWriteEnv(curl);
#endif
#ifdef VMS
if (!config->showerror) {
vms_show = VMSSTS_HIDE;
}
#else
if((res!=CURLE_OK) && config->showerror) {
if(CURLE_SSL_CACERT == res) {
fprintf(config->errors, "curl: (%d) %s\n\n", res, errorbuffer);
#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). The default\n" \
" bundle is named curl-ca-bundle.crt; 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"
fprintf(config->errors, "%s%s",
CURL_CA_CERT_ERRORMSG1,
CURL_CA_CERT_ERRORMSG2 );
}
else
fprintf(config->errors, "curl: (%d) %s\n", res, errorbuffer);
}
#endif
if (outfile && !curl_strequal(outfile, "-") && outs.stream)
fclose(outs.stream);
#ifdef HAVE_UTIME
/* Important that we set the time _after_ the file has been
closed, as is done above here */
if(config->remote_time && outs.filename) {
/* as libcurl if we got a time. Pretty please */
long filetime;
curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
if(filetime >= 0) {
struct utimbuf times;
times.actime = filetime;
times.modtime = filetime;
utime(outs.filename, &times); /* set the time we got */
}
}
#endif
if (config->infile)
fclose(infd);
if(headerfilep)
fclose(headerfilep);
if (httpgetfields)
free(httpgetfields);
if(url)
free(url);
if(outfile)
free(outfile);
}
if(outfiles)
free(outfiles);
if(urls)
/* cleanup memory used for URL globbing patterns */
glob_cleanup(urls);
/* empty this urlnode struct */
if(urlnode->url)
free(urlnode->url);
if(urlnode->outfile)
free(urlnode->outfile);
/* move on to the next URL */
nextnode=urlnode->next;
free(urlnode); /* free the node */
urlnode = nextnode;
} /* while-loop through all URLs */
if(config->headerfile && !headerfilep && heads.stream)
fclose(heads.stream);
if(config->trace_fopened)
fclose(config->trace_stream);
if(allocuseragent)
free(config->useragent);
/* cleanup the curl handle! */
curl_easy_cleanup(curl);
if(config->errors_fopened)
fclose(config->errors);
main_free(); /* cleanup */
return res;
}
int main(int argc, char *argv[])
{
int res;
struct Configurable config;
memset(&config, 0, sizeof(struct Configurable));
res = operate(&config, argc, argv);
free_config_fields(&config);
#ifdef VMS
if (res > 52) res = 53; /* MAXMSG, porting helper */
return (vms_cond[res]|vms_show);
#else
return res;
#endif
}
static char *my_get_line(FILE *fp)
{
char buf[4096];
char *nl = NULL;
char *retval = NULL;
do
{
if (NULL == fgets(buf, sizeof(buf), fp))
break;
if (NULL == retval)
retval = strdup(buf);
else
{
if (NULL == (retval = realloc(retval,
strlen(retval) + strlen(buf) + 1)))
break;
strcat(retval, buf);
}
}
while (NULL == (nl = strchr(retval, '\n')));
if (NULL != nl)
*nl = '\0';
return retval;
}
/* Create the needed directory hierarchy recursively in order to save
multi-GETs in file output, ie:
curl "http://my.site/dir[1-5]/file[1-5].txt" -o "dir#1/file#2.txt"
should create all the dir* automagically
*/
static int create_dir_hierarchy(char *outfile)
{
char *tempdir;
char *tempdir2;
char *outdup;
char *dirbuildup;
int result=0;
outdup = strdup(outfile);
dirbuildup = malloc(sizeof(char) * strlen(outfile));
if(!dirbuildup)
return -1;
dirbuildup[0] = '\0';
tempdir = strtok(outdup, DIR_CHAR);
while (tempdir != NULL) {
tempdir2 = strtok(NULL, DIR_CHAR);
/* since strtok returns a token for the last word even
if not ending with DIR_CHAR, we need to prune it */
if (tempdir2 != NULL) {
if (strlen(dirbuildup) > 0)
sprintf(dirbuildup,"%s%s%s",dirbuildup, DIR_CHAR, tempdir);
else {
if (0 != strncmp(outdup, DIR_CHAR, 1))
sprintf(dirbuildup,"%s",tempdir);
else
sprintf(dirbuildup,"%s%s", DIR_CHAR, tempdir);
}
if (access(dirbuildup, F_OK) == -1) {
result = mkdir(dirbuildup,(mode_t)0000750);
if (-1 == result) {
switch (errno) {
#ifdef EACCES
case EACCES:
fprintf(stderr,"You don't have permission to create %s.\n",
dirbuildup);
break;
#endif
#ifdef ENAMETOOLONG
case ENAMETOOLONG:
fprintf(stderr,"The directory name %s is too long.\n",
dirbuildup);
break;
#endif
#ifdef EROFS
case EROFS:
fprintf(stderr,"%s resides on a read-only file system.\n",
dirbuildup);
break;
#endif
#ifdef ENOSPC
case ENOSPC:
fprintf(stderr,"No space left on the file system that will "
"contain the directory %s.\n", dirbuildup);
break;
#endif
#ifdef EDQUOT
case EDQUOT:
fprintf(stderr,"Cannot create directory %s because you "
"exceeded your quota.\n", dirbuildup);
break;
#endif
default :
fprintf(stderr,"Error creating directory %s.\n", dirbuildup);
break;
}
break; /* get out of loop */
}
}
}
tempdir = tempdir2;
}
free(dirbuildup);
free(outdup);
return result; /* 0 is fine, -1 is badness */
}
#ifdef __DJGPP__
/* The following functions are taken with modification from the DJGPP
* port of tar 1.12. They use algorithms originally from DJTAR. */
char *
msdosify (char *file_name)
{
static char dos_name[PATH_MAX];
static char illegal_chars_dos[] = ".+, ;=[]|<>\\\":?*";
static char *illegal_chars_w95 = &illegal_chars_dos[8];
int idx, dot_idx;
char *s = file_name, *d = dos_name;
char *illegal_aliens = illegal_chars_dos;
size_t len = sizeof (illegal_chars_dos) - 1;
int lfn = 0;
/* Support for Windows 9X VFAT systems, when available. */
if (_use_lfn (file_name))
lfn = 1;
if (lfn) {
illegal_aliens = illegal_chars_w95;
len -= (illegal_chars_w95 - illegal_chars_dos);
}
/* Get past the drive letter, if any. */
if (s[0] >= 'A' && s[0] <= 'z' && s[1] == ':') {
*d++ = *s++;
*d++ = *s++;
}
for (idx = 0, dot_idx = -1; *s; s++, d++) {
if (memchr (illegal_aliens, *s, len)) {
/* Dots are special: DOS doesn't allow them as the leading character,
and a file name cannot have more than a single dot. We leave the
first non-leading dot alone, unless it comes too close to the
beginning of the name: we want sh.lex.c to become sh_lex.c, not
sh.lex-c. */
if (*s == '.') {
if (idx == 0 && (s[1] == '/' || (s[1] == '.' && s[2] == '/'))) {
/* Copy "./" and "../" verbatim. */
*d++ = *s++;
if (*s == '.')
*d++ = *s++;
*d = *s;
}
else if (idx == 0)
*d = '_';
else if (dot_idx >= 0) {
if (dot_idx < 5) { /* 5 is a heuristic ad-hoc'ery */
d[dot_idx - idx] = '_'; /* replace previous dot */
*d = '.';
}
else
*d = '-';
}
else
*d = '.';
if (*s == '.')
dot_idx = idx;
}
else if (*s == '+' && s[1] == '+') {
if (idx - 2 == dot_idx) { /* .c++, .h++ etc. */
*d++ = 'x';
*d = 'x';
}
else {
/* libg++ etc. */
memcpy (d, "plus", 4);
d += 3;
}
s++;
idx++;
}
else
*d = '_';
}
else
*d = *s;
if (*s == '/') {
idx = 0;
dot_idx = -1;
}
else
idx++;
}
*d = '\0';
return dos_name;
}
char *
rename_if_dos_device_name (char *file_name)
{
/* We could have a file whose name is a device on MS-DOS. Trying to
* retrieve such a file would fail at best and wedge us at worst. We need
* to rename such files. */
extern char *basename (const char *);
char *base;
struct stat st_buf;
char fname[PATH_MAX];
strcpy (fname, file_name);
base = basename (fname);
if (((stat(base, &st_buf)) == 0) && (S_ISCHR(st_buf.st_mode))) {
size_t blen = strlen (base);
/* Prepend a '_'. */
memmove (base + 1, base, blen + 1);
base[0] = '_';
strcpy (file_name, fname);
}
return file_name;
}
#endif /* __DJGPP__ */
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