32da885a91
Terminate returned message at <CRLF> so strtoul returns without error
865 lines
21 KiB
C
865 lines
21 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* wget - retrieve a file using HTTP or FTP
|
|
*
|
|
* Chip Rosenthal Covad Communications <chip@laserlink.net>
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <netdb.h>
|
|
|
|
#ifndef _GNU_SOURCE
|
|
#define _GNU_SOURCE
|
|
#endif
|
|
#include <getopt.h>
|
|
|
|
#include "busybox.h"
|
|
|
|
struct host_info {
|
|
char *host;
|
|
int port;
|
|
char *path;
|
|
int is_ftp;
|
|
char *user;
|
|
};
|
|
|
|
static void parse_url(char *url, struct host_info *h);
|
|
static FILE *open_socket(struct sockaddr_in *s_in);
|
|
static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
|
|
static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
|
|
|
|
/* Globals (can be accessed from signal handlers */
|
|
static off_t filesize = 0; /* content-length of the file */
|
|
static int chunked = 0; /* chunked transfer encoding */
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
static void progressmeter(int flag);
|
|
static char *curfile; /* Name of current file being transferred. */
|
|
static struct timeval start; /* Time a transfer started. */
|
|
static volatile unsigned long statbytes = 0; /* Number of bytes transferred so far. */
|
|
/* For progressmeter() -- number of seconds before xfer considered "stalled" */
|
|
static const int STALLTIME = 5;
|
|
#endif
|
|
|
|
static void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue)
|
|
{
|
|
if (output != stdout && do_continue==0) {
|
|
fclose(output);
|
|
unlink(fname_out);
|
|
}
|
|
}
|
|
|
|
/* Read NMEMB elements of SIZE bytes into PTR from STREAM. Returns the
|
|
* number of elements read, and a short count if an eof or non-interrupt
|
|
* error is encountered. */
|
|
static size_t safe_fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
|
|
{
|
|
size_t ret = 0;
|
|
|
|
do {
|
|
clearerr(stream);
|
|
ret += fread((char *)ptr + (ret * size), size, nmemb - ret, stream);
|
|
} while (ret < nmemb && ferror(stream) && errno == EINTR);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Write NMEMB elements of SIZE bytes from PTR to STREAM. Returns the
|
|
* number of elements written, and a short count if an eof or non-interrupt
|
|
* error is encountered. */
|
|
static size_t safe_fwrite(void *ptr, size_t size, size_t nmemb, FILE *stream)
|
|
{
|
|
size_t ret = 0;
|
|
|
|
do {
|
|
clearerr(stream);
|
|
ret += fwrite((char *)ptr + (ret * size), size, nmemb - ret, stream);
|
|
} while (ret < nmemb && ferror(stream) && errno == EINTR);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Read a line or SIZE - 1 bytes into S, whichever is less, from STREAM.
|
|
* Returns S, or NULL if an eof or non-interrupt error is encountered. */
|
|
static char *safe_fgets(char *s, int size, FILE *stream)
|
|
{
|
|
char *ret;
|
|
|
|
do {
|
|
clearerr(stream);
|
|
ret = fgets(s, size, stream);
|
|
} while (ret == NULL && ferror(stream) && errno == EINTR);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define close_delete_and_die(s...) { \
|
|
close_and_delete_outfile(output, fname_out, do_continue); \
|
|
bb_error_msg_and_die(s); }
|
|
|
|
|
|
#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
|
|
/*
|
|
* Base64-encode character string
|
|
* oops... isn't something similar in uuencode.c?
|
|
* It would be better to use already existing code
|
|
*/
|
|
char *base64enc(unsigned char *p, char *buf, int len) {
|
|
|
|
char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
|
|
"0123456789+/";
|
|
char *s = buf;
|
|
|
|
while(*p) {
|
|
if (s >= buf+len-4)
|
|
bb_error_msg_and_die("buffer overflow");
|
|
*(s++) = al[(*p >> 2) & 0x3F];
|
|
*(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)];
|
|
*s = *(s+1) = '=';
|
|
*(s+2) = 0;
|
|
if (! *(++p)) break;
|
|
*(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)];
|
|
if (! *(++p)) break;
|
|
*(s++) = al[*(p++) & 0x3F];
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
#endif
|
|
|
|
#define WGET_OPT_CONTINUE 1
|
|
#define WGET_OPT_QUIET 2
|
|
#define WGET_OPT_PASSIVE 4
|
|
#define WGET_OPT_OUTNAME 8
|
|
#define WGET_OPT_HEADER 16
|
|
#define WGET_OPT_PREFIX 32
|
|
#define WGET_OPT_PROXY 64
|
|
|
|
static const struct option wget_long_options[] = {
|
|
{ "continue", 0, NULL, 'c' },
|
|
{ "quiet", 0, NULL, 'q' },
|
|
{ "passive-ftp", 0, NULL, 139 },
|
|
{ "output-document", 1, NULL, 'O' },
|
|
{ "header", 1, NULL, 131 },
|
|
{ "directory-prefix",1, NULL, 'P' },
|
|
{ "proxy", 1, NULL, 'Y' },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
int wget_main(int argc, char **argv)
|
|
{
|
|
int n, try=5, status;
|
|
unsigned long opt;
|
|
int port;
|
|
char *proxy = 0;
|
|
char *dir_prefix=NULL;
|
|
char *s, buf[512];
|
|
struct stat sbuf;
|
|
char extra_headers[1024];
|
|
char *extra_headers_ptr = extra_headers;
|
|
int extra_headers_left = sizeof(extra_headers);
|
|
struct host_info server, target;
|
|
struct sockaddr_in s_in;
|
|
llist_t *headers_llist = NULL;
|
|
|
|
FILE *sfp = NULL; /* socket to web/ftp server */
|
|
FILE *dfp = NULL; /* socket to ftp server (data) */
|
|
char *fname_out = NULL; /* where to direct output (-O) */
|
|
int do_continue = 0; /* continue a prev transfer (-c) */
|
|
long beg_range = 0L; /* range at which continue begins */
|
|
int got_clen = 0; /* got content-length: from server */
|
|
FILE *output; /* socket to web server */
|
|
int quiet_flag = FALSE; /* Be verry, verry quiet... */
|
|
int use_proxy = 1; /* Use proxies if env vars are set */
|
|
char *proxy_flag = "on"; /* Use proxies if env vars are set */
|
|
|
|
/*
|
|
* Crack command line.
|
|
*/
|
|
bb_opt_complementaly = "\203*";
|
|
bb_applet_long_options = wget_long_options;
|
|
opt = bb_getopt_ulflags(argc, argv, "cq\213O:\203:P:Y:", &fname_out, &headers_llist, &dir_prefix, &proxy_flag);
|
|
if (opt & WGET_OPT_CONTINUE) {
|
|
++do_continue;
|
|
}
|
|
if (opt & WGET_OPT_QUIET) {
|
|
quiet_flag = TRUE;
|
|
}
|
|
if (strcmp(proxy_flag, "off") == 0) {
|
|
/* Use the proxy if necessary. */
|
|
use_proxy = 0;
|
|
}
|
|
if (opt & WGET_OPT_HEADER) {
|
|
while (headers_llist) {
|
|
int arglen = strlen(headers_llist->data);
|
|
if (extra_headers_left - arglen - 2 <= 0)
|
|
bb_error_msg_and_die("extra_headers buffer too small(need %i)", extra_headers_left - arglen);
|
|
strcpy(extra_headers_ptr, headers_llist->data);
|
|
extra_headers_ptr += arglen;
|
|
extra_headers_left -= ( arglen + 2 );
|
|
*extra_headers_ptr++ = '\r';
|
|
*extra_headers_ptr++ = '\n';
|
|
*(extra_headers_ptr + 1) = 0;
|
|
headers_llist = headers_llist->link;
|
|
}
|
|
}
|
|
if (argc - optind != 1)
|
|
bb_show_usage();
|
|
|
|
parse_url(argv[optind], &target);
|
|
server.host = target.host;
|
|
server.port = target.port;
|
|
|
|
/*
|
|
* Use the proxy if necessary.
|
|
*/
|
|
if (use_proxy) {
|
|
proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
|
|
if (proxy && *proxy) {
|
|
parse_url(bb_xstrdup(proxy), &server);
|
|
} else {
|
|
use_proxy = 0;
|
|
}
|
|
}
|
|
|
|
/* Guess an output filename */
|
|
if (!fname_out) {
|
|
fname_out =
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
curfile =
|
|
#endif
|
|
bb_get_last_path_component(target.path);
|
|
if (fname_out==NULL || strlen(fname_out)<1) {
|
|
fname_out =
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
curfile =
|
|
#endif
|
|
"index.html";
|
|
}
|
|
if (dir_prefix != NULL)
|
|
fname_out = concat_path_file(dir_prefix, fname_out);
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
} else {
|
|
curfile = bb_get_last_path_component(fname_out);
|
|
#endif
|
|
}
|
|
if (do_continue && !fname_out)
|
|
bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
|
|
|
|
|
|
/*
|
|
* Open the output file stream.
|
|
*/
|
|
if (strcmp(fname_out, "-") == 0) {
|
|
output = stdout;
|
|
quiet_flag = TRUE;
|
|
} else {
|
|
output = bb_xfopen(fname_out, (do_continue ? "a" : "w"));
|
|
}
|
|
|
|
/*
|
|
* Determine where to start transfer.
|
|
*/
|
|
if (do_continue) {
|
|
if (fstat(fileno(output), &sbuf) < 0)
|
|
bb_perror_msg_and_die("fstat()");
|
|
if (sbuf.st_size > 0)
|
|
beg_range = sbuf.st_size;
|
|
else
|
|
do_continue = 0;
|
|
}
|
|
|
|
/* We want to do exactly _one_ DNS lookup, since some
|
|
* sites (i.e. ftp.us.debian.org) use round-robin DNS
|
|
* and we want to connect to only one IP... */
|
|
bb_lookup_host(&s_in, server.host);
|
|
s_in.sin_port = server.port;
|
|
if (quiet_flag==FALSE) {
|
|
fprintf(stdout, "Connecting to %s[%s]:%d\n",
|
|
server.host, inet_ntoa(s_in.sin_addr), ntohs(server.port));
|
|
}
|
|
|
|
if (use_proxy || !target.is_ftp) {
|
|
/*
|
|
* HTTP session
|
|
*/
|
|
do {
|
|
got_clen = chunked = 0;
|
|
|
|
if (! --try)
|
|
close_delete_and_die("too many redirections");
|
|
|
|
/*
|
|
* Open socket to http server
|
|
*/
|
|
if (sfp) fclose(sfp);
|
|
sfp = open_socket(&s_in);
|
|
|
|
/*
|
|
* Send HTTP request.
|
|
*/
|
|
if (use_proxy) {
|
|
const char *format = "GET %stp://%s:%d/%s HTTP/1.1\r\n";
|
|
#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
|
|
if (strchr (target.host, ':'))
|
|
format = "GET %stp://[%s]:%d/%s HTTP/1.1\r\n";
|
|
#endif
|
|
fprintf(sfp, format,
|
|
target.is_ftp ? "f" : "ht", target.host,
|
|
ntohs(target.port), target.path);
|
|
} else {
|
|
fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
|
|
}
|
|
|
|
fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host);
|
|
|
|
#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
|
|
if (target.user) {
|
|
fprintf(sfp, "Authorization: Basic %s\r\n",
|
|
base64enc(target.user, buf, sizeof(buf)));
|
|
}
|
|
if (use_proxy && server.user) {
|
|
fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
|
|
base64enc(server.user, buf, sizeof(buf)));
|
|
}
|
|
#endif
|
|
|
|
if (do_continue)
|
|
fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
|
|
if(extra_headers_left < sizeof(extra_headers))
|
|
fputs(extra_headers,sfp);
|
|
fprintf(sfp,"Connection: close\r\n\r\n");
|
|
|
|
/*
|
|
* Retrieve HTTP response line and check for "200" status code.
|
|
*/
|
|
read_response:
|
|
if (fgets(buf, sizeof(buf), sfp) == NULL)
|
|
close_delete_and_die("no response from server");
|
|
|
|
for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
|
|
;
|
|
for ( ; isspace(*s) ; ++s)
|
|
;
|
|
switch (status = atoi(s)) {
|
|
case 0:
|
|
case 100:
|
|
while (gethdr(buf, sizeof(buf), sfp, &n) != NULL);
|
|
goto read_response;
|
|
case 200:
|
|
if (do_continue && output != stdout)
|
|
output = freopen(fname_out, "w", output);
|
|
do_continue = 0;
|
|
break;
|
|
case 300: /* redirection */
|
|
case 301:
|
|
case 302:
|
|
case 303:
|
|
break;
|
|
case 206:
|
|
if (do_continue)
|
|
break;
|
|
/*FALLTHRU*/
|
|
default:
|
|
chomp(buf);
|
|
close_delete_and_die("server returned error %d: %s", atoi(s), buf);
|
|
}
|
|
|
|
/*
|
|
* Retrieve HTTP headers.
|
|
*/
|
|
while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
|
|
if (strcasecmp(buf, "content-length") == 0) {
|
|
unsigned long value;
|
|
if (safe_strtoul(s, &value)) {
|
|
close_delete_and_die("content-length %s is garbage", s);
|
|
}
|
|
filesize = value;
|
|
got_clen = 1;
|
|
continue;
|
|
}
|
|
if (strcasecmp(buf, "transfer-encoding") == 0) {
|
|
if (strcasecmp(s, "chunked") == 0) {
|
|
chunked = got_clen = 1;
|
|
} else {
|
|
close_delete_and_die("server wants to do %s transfer encoding", s);
|
|
}
|
|
}
|
|
if (strcasecmp(buf, "location") == 0) {
|
|
if (s[0] == '/')
|
|
target.path = bb_xstrdup(s+1);
|
|
else {
|
|
parse_url(bb_xstrdup(s), &target);
|
|
if (use_proxy == 0) {
|
|
server.host = target.host;
|
|
server.port = target.port;
|
|
}
|
|
bb_lookup_host(&s_in, server.host);
|
|
s_in.sin_port = server.port;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} while(status >= 300);
|
|
|
|
dfp = sfp;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* FTP session
|
|
*/
|
|
if (! target.user)
|
|
target.user = bb_xstrdup("anonymous:busybox@");
|
|
|
|
sfp = open_socket(&s_in);
|
|
if (ftpcmd(NULL, NULL, sfp, buf) != 220)
|
|
close_delete_and_die("%s", buf+4);
|
|
|
|
/*
|
|
* Splitting username:password pair,
|
|
* trying to log in
|
|
*/
|
|
s = strchr(target.user, ':');
|
|
if (s)
|
|
*(s++) = '\0';
|
|
switch(ftpcmd("USER ", target.user, sfp, buf)) {
|
|
case 230:
|
|
break;
|
|
case 331:
|
|
if (ftpcmd("PASS ", s, sfp, buf) == 230)
|
|
break;
|
|
/* FALLTHRU (failed login) */
|
|
default:
|
|
close_delete_and_die("ftp login: %s", buf+4);
|
|
}
|
|
|
|
ftpcmd("CDUP", NULL, sfp, buf);
|
|
ftpcmd("TYPE I", NULL, sfp, buf);
|
|
|
|
/*
|
|
* Querying file size
|
|
*/
|
|
if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) {
|
|
unsigned long value;
|
|
if (safe_strtoul(buf+4, &value)) {
|
|
close_delete_and_die("SIZE value is garbage");
|
|
}
|
|
filesize = value;
|
|
got_clen = 1;
|
|
}
|
|
|
|
/*
|
|
* Entering passive mode
|
|
*/
|
|
if (ftpcmd("PASV", NULL, sfp, buf) != 227)
|
|
close_delete_and_die("PASV: %s", buf+4);
|
|
s = strrchr(buf, ',');
|
|
*s = 0;
|
|
port = atoi(s+1);
|
|
s = strrchr(buf, ',');
|
|
port += atoi(s+1) * 256;
|
|
s_in.sin_port = htons(port);
|
|
dfp = open_socket(&s_in);
|
|
|
|
if (do_continue) {
|
|
sprintf(buf, "REST %ld", beg_range);
|
|
if (ftpcmd(buf, NULL, sfp, buf) != 350) {
|
|
if (output != stdout)
|
|
output = freopen(fname_out, "w", output);
|
|
do_continue = 0;
|
|
} else
|
|
filesize -= beg_range;
|
|
}
|
|
|
|
if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
|
|
close_delete_and_die("RETR: %s", buf+4);
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
* Retrieve file
|
|
*/
|
|
if (chunked) {
|
|
fgets(buf, sizeof(buf), dfp);
|
|
filesize = strtol(buf, (char **) NULL, 16);
|
|
}
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
if (quiet_flag==FALSE)
|
|
progressmeter(-1);
|
|
#endif
|
|
do {
|
|
while ((filesize > 0 || !got_clen) && (n = safe_fread(buf, 1, ((chunked || got_clen) && (filesize < sizeof(buf)) ? filesize : sizeof(buf)), dfp)) > 0) {
|
|
if (safe_fwrite(buf, 1, n, output) != n) {
|
|
bb_perror_msg_and_die("write error");
|
|
}
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
statbytes+=n;
|
|
#endif
|
|
if (got_clen) {
|
|
filesize -= n;
|
|
}
|
|
}
|
|
|
|
if (chunked) {
|
|
safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
|
|
safe_fgets(buf, sizeof(buf), dfp);
|
|
filesize = strtol(buf, (char **) NULL, 16);
|
|
if (filesize==0) {
|
|
chunked = 0; /* all done! */
|
|
}
|
|
}
|
|
|
|
if (n == 0 && ferror(dfp)) {
|
|
bb_perror_msg_and_die("network read error");
|
|
}
|
|
} while (chunked);
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
if (quiet_flag==FALSE)
|
|
progressmeter(1);
|
|
#endif
|
|
if ((use_proxy == 0) && target.is_ftp) {
|
|
fclose(dfp);
|
|
if (ftpcmd(NULL, NULL, sfp, buf) != 226)
|
|
bb_error_msg_and_die("ftp error: %s", buf+4);
|
|
ftpcmd("QUIT", NULL, sfp, buf);
|
|
}
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
|
|
void parse_url(char *url, struct host_info *h)
|
|
{
|
|
char *cp, *sp, *up, *pp;
|
|
|
|
if (strncmp(url, "http://", 7) == 0) {
|
|
h->port = bb_lookup_port("http", "tcp", 80);
|
|
h->host = url + 7;
|
|
h->is_ftp = 0;
|
|
} else if (strncmp(url, "ftp://", 6) == 0) {
|
|
h->port = bb_lookup_port("ftp", "tfp", 21);
|
|
h->host = url + 6;
|
|
h->is_ftp = 1;
|
|
} else
|
|
bb_error_msg_and_die("not an http or ftp url: %s", url);
|
|
|
|
sp = strchr(h->host, '/');
|
|
if (sp) {
|
|
*sp++ = '\0';
|
|
h->path = sp;
|
|
} else
|
|
h->path = bb_xstrdup("");
|
|
|
|
up = strrchr(h->host, '@');
|
|
if (up != NULL) {
|
|
h->user = h->host;
|
|
*up++ = '\0';
|
|
h->host = up;
|
|
} else
|
|
h->user = NULL;
|
|
|
|
pp = h->host;
|
|
|
|
#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
|
|
if (h->host[0] == '[') {
|
|
char *ep;
|
|
|
|
ep = h->host + 1;
|
|
while (*ep == ':' || isxdigit (*ep))
|
|
ep++;
|
|
if (*ep == ']') {
|
|
h->host++;
|
|
*ep = '\0';
|
|
pp = ep + 1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
cp = strchr(pp, ':');
|
|
if (cp != NULL) {
|
|
*cp++ = '\0';
|
|
h->port = htons(atoi(cp));
|
|
}
|
|
}
|
|
|
|
|
|
FILE *open_socket(struct sockaddr_in *s_in)
|
|
{
|
|
FILE *fp;
|
|
|
|
fp = fdopen(xconnect(s_in), "r+");
|
|
if (fp == NULL)
|
|
bb_perror_msg_and_die("fdopen()");
|
|
|
|
return fp;
|
|
}
|
|
|
|
|
|
char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
|
|
{
|
|
char *s, *hdrval;
|
|
int c;
|
|
|
|
*istrunc = 0;
|
|
|
|
/* retrieve header line */
|
|
if (fgets(buf, bufsiz, fp) == NULL)
|
|
return NULL;
|
|
|
|
/* see if we are at the end of the headers */
|
|
for (s = buf ; *s == '\r' ; ++s)
|
|
;
|
|
if (s[0] == '\n')
|
|
return NULL;
|
|
|
|
/* convert the header name to lower case */
|
|
for (s = buf ; isalnum(*s) || *s == '-' ; ++s)
|
|
*s = tolower(*s);
|
|
|
|
/* verify we are at the end of the header name */
|
|
if (*s != ':')
|
|
bb_error_msg_and_die("bad header line: %s", buf);
|
|
|
|
/* locate the start of the header value */
|
|
for (*s++ = '\0' ; *s == ' ' || *s == '\t' ; ++s)
|
|
;
|
|
hdrval = s;
|
|
|
|
/* locate the end of header */
|
|
while (*s != '\0' && *s != '\r' && *s != '\n')
|
|
++s;
|
|
|
|
/* end of header found */
|
|
if (*s != '\0') {
|
|
*s = '\0';
|
|
return hdrval;
|
|
}
|
|
|
|
/* Rats! The buffer isn't big enough to hold the entire header value. */
|
|
while (c = getc(fp), c != EOF && c != '\n')
|
|
;
|
|
*istrunc = 1;
|
|
return hdrval;
|
|
}
|
|
|
|
static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
|
|
{
|
|
if (s1) {
|
|
if (!s2) s2="";
|
|
fprintf(fp, "%s%s\r\n", s1, s2);
|
|
fflush(fp);
|
|
}
|
|
|
|
do {
|
|
char *buf_ptr;
|
|
|
|
if (fgets(buf, 510, fp) == NULL) {
|
|
bb_perror_msg_and_die("fgets()");
|
|
}
|
|
buf_ptr = strstr(buf, "\r\n");
|
|
if (buf_ptr) {
|
|
*buf_ptr = '\0';
|
|
}
|
|
} while (! isdigit(buf[0]) || buf[3] != ' ');
|
|
|
|
return atoi(buf);
|
|
}
|
|
|
|
#ifdef CONFIG_FEATURE_WGET_STATUSBAR
|
|
/* Stuff below is from BSD rcp util.c, as added to openshh.
|
|
* Original copyright notice is retained at the end of this file.
|
|
*
|
|
*/
|
|
|
|
|
|
static int
|
|
getttywidth(void)
|
|
{
|
|
int width=0;
|
|
get_terminal_width_height(0, &width, NULL);
|
|
return (width);
|
|
}
|
|
|
|
static void
|
|
updateprogressmeter(int ignore)
|
|
{
|
|
int save_errno = errno;
|
|
|
|
progressmeter(0);
|
|
errno = save_errno;
|
|
}
|
|
|
|
static void
|
|
alarmtimer(int wait)
|
|
{
|
|
struct itimerval itv;
|
|
|
|
itv.it_value.tv_sec = wait;
|
|
itv.it_value.tv_usec = 0;
|
|
itv.it_interval = itv.it_value;
|
|
setitimer(ITIMER_REAL, &itv, NULL);
|
|
}
|
|
|
|
|
|
static void
|
|
progressmeter(int flag)
|
|
{
|
|
static const char prefixes[] = " KMGTP";
|
|
static struct timeval lastupdate;
|
|
static off_t lastsize, totalsize;
|
|
struct timeval now, td, wait;
|
|
off_t cursize, abbrevsize;
|
|
double elapsed;
|
|
int ratio, barlength, i, remaining;
|
|
char buf[256];
|
|
|
|
if (flag == -1) {
|
|
(void) gettimeofday(&start, (struct timezone *) 0);
|
|
lastupdate = start;
|
|
lastsize = 0;
|
|
totalsize = filesize; /* as filesize changes.. */
|
|
}
|
|
|
|
(void) gettimeofday(&now, (struct timezone *) 0);
|
|
cursize = statbytes;
|
|
if (totalsize != 0 && !chunked) {
|
|
ratio = 100.0 * cursize / totalsize;
|
|
ratio = MAX(ratio, 0);
|
|
ratio = MIN(ratio, 100);
|
|
} else
|
|
ratio = 100;
|
|
|
|
snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
|
|
|
|
barlength = getttywidth() - 51;
|
|
if (barlength > 0) {
|
|
i = barlength * ratio / 100;
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
"|%.*s%*s|", i,
|
|
"*****************************************************************************"
|
|
"*****************************************************************************",
|
|
barlength - i, "");
|
|
}
|
|
i = 0;
|
|
abbrevsize = cursize;
|
|
while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
|
|
i++;
|
|
abbrevsize >>= 10;
|
|
}
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ",
|
|
(int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' :
|
|
'B');
|
|
|
|
timersub(&now, &lastupdate, &wait);
|
|
if (cursize > lastsize) {
|
|
lastupdate = now;
|
|
lastsize = cursize;
|
|
if (wait.tv_sec >= STALLTIME) {
|
|
start.tv_sec += wait.tv_sec;
|
|
start.tv_usec += wait.tv_usec;
|
|
}
|
|
wait.tv_sec = 0;
|
|
}
|
|
timersub(&now, &start, &td);
|
|
elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
|
|
|
|
if (wait.tv_sec >= STALLTIME) {
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
" - stalled -");
|
|
} else if (statbytes <= 0 || elapsed <= 0.0 || cursize > totalsize || chunked) {
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
" --:-- ETA");
|
|
} else {
|
|
remaining = (int) (totalsize / (statbytes / elapsed) - elapsed);
|
|
i = remaining / 3600;
|
|
if (i)
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
"%2d:", i);
|
|
else
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
" ");
|
|
i = remaining % 3600;
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
"%02d:%02d ETA", i / 60, i % 60);
|
|
}
|
|
write(STDERR_FILENO, buf, strlen(buf));
|
|
|
|
if (flag == -1) {
|
|
struct sigaction sa;
|
|
sa.sa_handler = updateprogressmeter;
|
|
sigemptyset(&sa.sa_mask);
|
|
sa.sa_flags = SA_RESTART;
|
|
sigaction(SIGALRM, &sa, NULL);
|
|
alarmtimer(1);
|
|
} else if (flag == 1) {
|
|
alarmtimer(0);
|
|
statbytes = 0;
|
|
putc('\n', stderr);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Original copyright notice which applies to the CONFIG_FEATURE_WGET_STATUSBAR stuff,
|
|
* much of which was blatently stolen from openssh. */
|
|
|
|
/*-
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
|
|
* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
|
|
*
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $Id: wget.c,v 1.73 2004/04/08 10:27:11 bug1 Exp $
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
Local Variables:
|
|
c-file-style: "linux"
|
|
c-basic-offset: 4
|
|
tab-width: 4
|
|
End:
|
|
*/
|