mirror of
https://github.com/sheumann/hush.git
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837 lines
22 KiB
C
837 lines
22 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* wget - retrieve a file using HTTP or FTP
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*
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* Chip Rosenthal Covad Communications <chip@laserlink.net>
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*
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*/
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/* We want libc to give us xxx64 functions also */
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/* http://www.unix.org/version2/whatsnew/lfs20mar.html */
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#define _LARGEFILE64_SOURCE 1
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#include "busybox.h"
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#include <getopt.h> /* for struct option */
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struct host_info {
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// May be used if we ever will want to free() all xstrdup()s...
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/* char *allocated; */
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char *host;
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int port;
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char *path;
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int is_ftp;
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char *user;
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};
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static void parse_url(char *url, struct host_info *h);
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static FILE *open_socket(len_and_sockaddr *lsa);
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static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
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static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
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/* Globals (can be accessed from signal handlers */
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static off_t content_len; /* Content-length of the file */
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static off_t beg_range; /* Range at which continue begins */
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#if ENABLE_FEATURE_WGET_STATUSBAR
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static off_t transferred; /* Number of bytes transferred so far */
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#endif
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static int chunked; /* chunked transfer encoding */
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#if ENABLE_FEATURE_WGET_STATUSBAR
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static void progressmeter(int flag);
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static char *curfile; /* Name of current file being transferred */
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static struct timeval start; /* Time a transfer started */
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enum {
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STALLTIME = 5 /* Seconds when xfer considered "stalled" */
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};
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#else
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static void progressmeter(int flag) {}
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#endif
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/* Read NMEMB elements of SIZE bytes into PTR from STREAM. Returns the
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* number of elements read, and a short count if an eof or non-interrupt
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* error is encountered. */
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static size_t safe_fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
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{
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size_t ret = 0;
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do {
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clearerr(stream);
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ret += fread((char *)ptr + (ret * size), size, nmemb - ret, stream);
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} while (ret < nmemb && ferror(stream) && errno == EINTR);
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return ret;
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}
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/* Read a line or SIZE - 1 bytes into S, whichever is less, from STREAM.
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* Returns S, or NULL if an eof or non-interrupt error is encountered. */
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static char *safe_fgets(char *s, int size, FILE *stream)
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{
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char *ret;
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do {
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clearerr(stream);
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ret = fgets(s, size, stream);
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} while (ret == NULL && ferror(stream) && errno == EINTR);
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return ret;
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}
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#if ENABLE_FEATURE_WGET_AUTHENTICATION
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/*
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* Base64-encode character string and return the string.
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*/
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static char *base64enc(unsigned char *p, char *buf, int len)
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{
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bb_uuencode(p, buf, len, bb_uuenc_tbl_base64);
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return buf;
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}
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#endif
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int wget_main(int argc, char **argv)
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{
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char buf[512];
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struct host_info server, target;
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len_and_sockaddr *lsa;
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int n, status;
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int port;
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int try = 5;
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unsigned opt;
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char *s;
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char *proxy = 0;
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char *dir_prefix = NULL;
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#if ENABLE_FEATURE_WGET_LONG_OPTIONS
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char *extra_headers = NULL;
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llist_t *headers_llist = NULL;
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#endif
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/* server.allocated = target.allocated = NULL; */
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FILE *sfp = NULL; /* socket to web/ftp server */
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FILE *dfp = NULL; /* socket to ftp server (data) */
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char *fname_out = NULL; /* where to direct output (-O) */
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int got_clen = 0; /* got content-length: from server */
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int output_fd = -1;
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int use_proxy = 1; /* Use proxies if env vars are set */
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const char *proxy_flag = "on"; /* Use proxies if env vars are set */
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const char *user_agent = "Wget";/* Content of the "User-Agent" header field */
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/*
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* Crack command line.
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*/
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enum {
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WGET_OPT_CONTINUE = 0x1,
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WGET_OPT_QUIET = 0x2,
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WGET_OPT_OUTNAME = 0x4,
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WGET_OPT_PREFIX = 0x8,
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WGET_OPT_PROXY = 0x10,
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WGET_OPT_USER_AGENT = 0x20,
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WGET_OPT_PASSIVE = 0x40,
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WGET_OPT_HEADER = 0x80,
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};
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#if ENABLE_FEATURE_WGET_LONG_OPTIONS
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static const struct option wget_long_options[] = {
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// name, has_arg, flag, val
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{ "continue", no_argument, NULL, 'c' },
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{ "quiet", no_argument, NULL, 'q' },
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{ "output-document", required_argument, NULL, 'O' },
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{ "directory-prefix", required_argument, NULL, 'P' },
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{ "proxy", required_argument, NULL, 'Y' },
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{ "user-agent", required_argument, NULL, 'U' },
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{ "passive-ftp", no_argument, NULL, 0xff },
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{ "header", required_argument, NULL, 0xfe },
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{ 0, 0, 0, 0 }
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};
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applet_long_options = wget_long_options;
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#endif
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opt_complementary = "-1" USE_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
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opt = getopt32(argc, argv, "cqO:P:Y:U:",
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&fname_out, &dir_prefix,
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&proxy_flag, &user_agent
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USE_FEATURE_WGET_LONG_OPTIONS(, &headers_llist)
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);
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if (strcmp(proxy_flag, "off") == 0) {
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/* Use the proxy if necessary. */
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use_proxy = 0;
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}
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#if ENABLE_FEATURE_WGET_LONG_OPTIONS
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if (headers_llist) {
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int size = 1;
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char *cp;
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llist_t *ll = headers_llist = rev_llist(headers_llist);
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while (ll) {
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size += strlen(ll->data) + 2;
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ll = ll->link;
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}
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extra_headers = cp = xmalloc(size);
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while (headers_llist) {
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cp += sprintf(cp, "%s\r\n", headers_llist->data);
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headers_llist = headers_llist->link;
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}
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}
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#endif
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parse_url(argv[optind], &target);
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server.host = target.host;
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server.port = target.port;
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/*
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* Use the proxy if necessary.
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*/
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if (use_proxy) {
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proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
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if (proxy && *proxy) {
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parse_url(proxy, &server);
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} else {
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use_proxy = 0;
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}
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}
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/* Guess an output filename */
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if (!fname_out) {
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// Dirty hack. Needed because bb_get_last_path_component
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// will destroy trailing / by storing '\0' in last byte!
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if (!last_char_is(target.path, '/')) {
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fname_out =
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#if ENABLE_FEATURE_WGET_STATUSBAR
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curfile =
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#endif
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bb_get_last_path_component(target.path);
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}
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if (!fname_out || !fname_out[0]) {
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fname_out =
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#if ENABLE_FEATURE_WGET_STATUSBAR
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curfile =
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#endif
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"index.html";
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}
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if (dir_prefix != NULL)
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fname_out = concat_path_file(dir_prefix, fname_out);
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#if ENABLE_FEATURE_WGET_STATUSBAR
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} else {
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curfile = bb_get_last_path_component(fname_out);
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#endif
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}
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/* Impossible?
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if ((opt & WGET_OPT_CONTINUE) && !fname_out)
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bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)"); */
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/*
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* Determine where to start transfer.
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*/
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if (LONE_DASH(fname_out)) {
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output_fd = 1;
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opt &= ~WGET_OPT_CONTINUE;
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}
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if (opt & WGET_OPT_CONTINUE) {
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output_fd = open(fname_out, O_WRONLY);
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if (output_fd >= 0) {
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beg_range = xlseek(output_fd, 0, SEEK_END);
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}
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/* File doesn't exist. We do not create file here yet.
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We are not sure it exists on remove side */
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}
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/* We want to do exactly _one_ DNS lookup, since some
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* sites (i.e. ftp.us.debian.org) use round-robin DNS
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* and we want to connect to only one IP... */
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lsa = host2sockaddr(server.host, server.port);
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if (!(opt & WGET_OPT_QUIET)) {
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fprintf(stderr, "Connecting to %s [%s]\n", server.host,
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xmalloc_sockaddr2dotted(&lsa->sa, lsa->len));
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/* We leak xmalloc_sockaddr2dotted result */
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}
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if (use_proxy || !target.is_ftp) {
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/*
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* HTTP session
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*/
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do {
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got_clen = chunked = 0;
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if (!--try)
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bb_error_msg_and_die("too many redirections");
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/*
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* Open socket to http server
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*/
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if (sfp) fclose(sfp);
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sfp = open_socket(lsa);
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/*
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* Send HTTP request.
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*/
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if (use_proxy) {
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// const char *format = "GET %stp://%s:%d/%s HTTP/1.1\r\n";
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//#if ENABLE_FEATURE_WGET_IP6_LITERAL
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// if (strchr(target.host, ':'))
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// format = "GET %stp://[%s]:%d/%s HTTP/1.1\r\n";
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//#endif
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// fprintf(sfp, format,
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// target.is_ftp ? "f" : "ht", target.host,
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// ntohs(target.port), target.path);
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fprintf(sfp, "GET %stp://%s/%s HTTP/1.1\r\n",
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target.is_ftp ? "f" : "ht", target.host,
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target.path);
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} else {
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fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
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}
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fprintf(sfp, "Host: %s\r\nUser-Agent: %s\r\n",
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target.host, user_agent);
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#if ENABLE_FEATURE_WGET_AUTHENTICATION
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if (target.user) {
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fprintf(sfp, "Authorization: Basic %s\r\n",
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base64enc((unsigned char*)target.user, buf, sizeof(buf)));
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}
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if (use_proxy && server.user) {
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fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
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base64enc((unsigned char*)server.user, buf, sizeof(buf)));
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}
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#endif
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if (beg_range)
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fprintf(sfp, "Range: bytes=%"OFF_FMT"d-\r\n", beg_range);
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#if ENABLE_FEATURE_WGET_LONG_OPTIONS
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if (extra_headers)
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fputs(extra_headers, sfp);
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#endif
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fprintf(sfp, "Connection: close\r\n\r\n");
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/*
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* Retrieve HTTP response line and check for "200" status code.
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*/
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read_response:
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if (fgets(buf, sizeof(buf), sfp) == NULL)
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bb_error_msg_and_die("no response from server");
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s = buf;
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while (*s != '\0' && !isspace(*s)) ++s;
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s = skip_whitespace(s);
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// FIXME: no error check
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// xatou wouldn't work: "200 OK"
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status = atoi(s);
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switch (status) {
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case 0:
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case 100:
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while (gethdr(buf, sizeof(buf), sfp, &n) != NULL)
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/* eat all remaining headers */;
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goto read_response;
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case 200:
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break;
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case 300: /* redirection */
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case 301:
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case 302:
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case 303:
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break;
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case 206:
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if (beg_range)
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break;
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/*FALLTHRU*/
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default:
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/* Show first line only and kill any ESC tricks */
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buf[strcspn(buf, "\n\r\x1b")] = '\0';
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bb_error_msg_and_die("server returned error: %s", buf);
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}
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/*
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* Retrieve HTTP headers.
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*/
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while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
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if (strcasecmp(buf, "content-length") == 0) {
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content_len = BB_STRTOOFF(s, NULL, 10);
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if (errno || content_len < 0) {
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bb_error_msg_and_die("content-length %s is garbage", s);
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}
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got_clen = 1;
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continue;
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}
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if (strcasecmp(buf, "transfer-encoding") == 0) {
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if (strcasecmp(s, "chunked") != 0)
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bb_error_msg_and_die("server wants to do %s transfer encoding", s);
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chunked = got_clen = 1;
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}
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if (strcasecmp(buf, "location") == 0) {
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if (s[0] == '/')
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/* free(target.allocated); */
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target.path = /* target.allocated = */ xstrdup(s+1);
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else {
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parse_url(s, &target);
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if (use_proxy == 0) {
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server.host = target.host;
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server.port = target.port;
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}
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free(lsa);
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lsa = host2sockaddr(server.host, server.port);
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break;
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}
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}
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}
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} while (status >= 300);
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dfp = sfp;
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} else {
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/*
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* FTP session
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*/
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if (!target.user)
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target.user = xstrdup("anonymous:busybox@");
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sfp = open_socket(lsa);
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if (ftpcmd(NULL, NULL, sfp, buf) != 220)
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bb_error_msg_and_die("%s", buf+4);
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/*
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* Splitting username:password pair,
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* trying to log in
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*/
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s = strchr(target.user, ':');
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if (s)
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*(s++) = '\0';
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switch (ftpcmd("USER ", target.user, sfp, buf)) {
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case 230:
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break;
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case 331:
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if (ftpcmd("PASS ", s, sfp, buf) == 230)
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break;
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/* FALLTHRU (failed login) */
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default:
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bb_error_msg_and_die("ftp login: %s", buf+4);
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}
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ftpcmd("TYPE I", NULL, sfp, buf);
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/*
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* Querying file size
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*/
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if (ftpcmd("SIZE ", target.path, sfp, buf) == 213) {
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content_len = BB_STRTOOFF(buf+4, NULL, 10);
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if (errno || content_len < 0) {
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bb_error_msg_and_die("SIZE value is garbage");
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}
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got_clen = 1;
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}
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/*
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* Entering passive mode
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*/
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if (ftpcmd("PASV", NULL, sfp, buf) != 227) {
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pasv_error:
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bb_error_msg_and_die("bad response to %s: %s", "PASV", buf);
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}
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// Response is "227 garbageN1,N2,N3,N4,P1,P2[)garbage]
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// Server's IP is N1.N2.N3.N4 (we ignore it)
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// Server's port for data connection is P1*256+P2
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s = strrchr(buf, ')');
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if (s) s[0] = '\0';
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s = strrchr(buf, ',');
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if (!s) goto pasv_error;
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port = xatou_range(s+1, 0, 255);
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*s = '\0';
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s = strrchr(buf, ',');
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if (!s) goto pasv_error;
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port += xatou_range(s+1, 0, 255) * 256;
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set_nport(lsa, htons(port));
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dfp = open_socket(lsa);
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if (beg_range) {
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sprintf(buf, "REST %"OFF_FMT"d", beg_range);
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if (ftpcmd(buf, NULL, sfp, buf) == 350)
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content_len -= beg_range;
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}
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if (ftpcmd("RETR ", target.path, sfp, buf) > 150)
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bb_error_msg_and_die("bad response to RETR: %s", buf);
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}
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|
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/*
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* Retrieve file
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*/
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if (chunked) {
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fgets(buf, sizeof(buf), dfp);
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content_len = STRTOOFF(buf, NULL, 16);
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/* FIXME: error check?? */
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}
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|
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/* Do it before progressmeter (want to have nice error message) */
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if (output_fd < 0)
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output_fd = xopen(fname_out,
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O_WRONLY|O_CREAT|O_EXCL|O_TRUNC);
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|
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if (!(opt & WGET_OPT_QUIET))
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progressmeter(-1);
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do {
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while (content_len > 0 || !got_clen) {
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unsigned rdsz = sizeof(buf);
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if (content_len < sizeof(buf) && (chunked || got_clen))
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rdsz = (unsigned)content_len;
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n = safe_fread(buf, 1, rdsz, dfp);
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if (n <= 0)
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break;
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if (full_write(output_fd, buf, n) != n) {
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bb_perror_msg_and_die(bb_msg_write_error);
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}
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#if ENABLE_FEATURE_WGET_STATUSBAR
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transferred += n;
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#endif
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if (got_clen) {
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content_len -= n;
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}
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}
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if (chunked) {
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safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
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safe_fgets(buf, sizeof(buf), dfp);
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content_len = STRTOOFF(buf, NULL, 16);
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/* FIXME: error check? */
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if (content_len == 0) {
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chunked = 0; /* all done! */
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}
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}
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if (n == 0 && ferror(dfp)) {
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bb_perror_msg_and_die(bb_msg_read_error);
|
|
}
|
|
} while (chunked);
|
|
|
|
if (!(opt & WGET_OPT_QUIET))
|
|
progressmeter(1);
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
static void parse_url(char *src_url, struct host_info *h)
|
|
{
|
|
char *url, *p, *sp;
|
|
|
|
/* h->allocated = */ url = xstrdup(src_url);
|
|
|
|
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", "tcp", 21);
|
|
h->host = url + 6;
|
|
h->is_ftp = 1;
|
|
} else
|
|
bb_error_msg_and_die("not an http or ftp url: %s", url);
|
|
|
|
// FYI:
|
|
// "Real" wget 'http://busybox.net?var=a/b' sends this request:
|
|
// 'GET /?var=a/b HTTP 1.0'
|
|
// and saves 'index.html?var=a%2Fb' (we save 'b')
|
|
// wget 'http://busybox.net?login=john@doe':
|
|
// request: 'GET /?login=john@doe HTTP/1.0'
|
|
// saves: 'index.html?login=john@doe' (we save '?login=john@doe')
|
|
// wget 'http://busybox.net#test/test':
|
|
// request: 'GET / HTTP/1.0'
|
|
// saves: 'index.html' (we save 'test')
|
|
//
|
|
// We also don't add unique .N suffix if file exists...
|
|
sp = strchr(h->host, '/');
|
|
p = strchr(h->host, '?'); if (!sp || (p && sp > p)) sp = p;
|
|
p = strchr(h->host, '#'); if (!sp || (p && sp > p)) sp = p;
|
|
if (!sp) {
|
|
h->path = "";
|
|
} else if (*sp == '/') {
|
|
*sp = '\0';
|
|
h->path = sp + 1;
|
|
} else { // '#' or '?'
|
|
// http://busybox.net?login=john@doe is a valid URL
|
|
// memmove converts to:
|
|
// http:/busybox.nett?login=john@doe...
|
|
memmove(h->host-1, h->host, sp - h->host);
|
|
h->host--;
|
|
sp[-1] = '\0';
|
|
h->path = sp;
|
|
}
|
|
|
|
sp = strrchr(h->host, '@');
|
|
h->user = NULL;
|
|
if (sp != NULL) {
|
|
h->user = h->host;
|
|
*sp = '\0';
|
|
h->host = sp + 1;
|
|
}
|
|
|
|
sp = h->host;
|
|
|
|
//host2sockaddr does this itself
|
|
//#if ENABLE_FEATURE_WGET_IP6_LITERAL
|
|
// if (sp[0] == '[') {
|
|
// char *ep;
|
|
//
|
|
// ep = sp + 1;
|
|
// while (*ep == ':' || isxdigit(*ep))
|
|
// ep++;
|
|
// if (*ep == ']') {
|
|
// h->host++;
|
|
// *ep = '\0';
|
|
// sp = ep + 1;
|
|
// }
|
|
// }
|
|
//#endif
|
|
//
|
|
// p = strchr(sp, ':');
|
|
// if (p != NULL) {
|
|
// *p = '\0';
|
|
// h->port = htons(xatou16(p + 1));
|
|
// }
|
|
}
|
|
|
|
|
|
static FILE *open_socket(len_and_sockaddr *lsa)
|
|
{
|
|
FILE *fp;
|
|
|
|
/* glibc 2.4 seems to try seeking on it - ??! */
|
|
/* hopefully it understands what ESPIPE means... */
|
|
fp = fdopen(xconnect_stream(lsa), "r+");
|
|
if (fp == NULL)
|
|
bb_perror_msg_and_die("fdopen");
|
|
|
|
return fp;
|
|
}
|
|
|
|
|
|
static 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)
|
|
{
|
|
int result;
|
|
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("error getting response");
|
|
}
|
|
buf_ptr = strstr(buf, "\r\n");
|
|
if (buf_ptr) {
|
|
*buf_ptr = '\0';
|
|
}
|
|
} while (!isdigit(buf[0]) || buf[3] != ' ');
|
|
|
|
buf[3] = '\0';
|
|
result = xatoi_u(buf);
|
|
buf[3] = ' ';
|
|
return result;
|
|
}
|
|
|
|
#if ENABLE_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;
|
|
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 iwait)
|
|
{
|
|
struct itimerval itv;
|
|
|
|
itv.it_value.tv_sec = iwait;
|
|
itv.it_value.tv_usec = 0;
|
|
itv.it_interval = itv.it_value;
|
|
setitimer(ITIMER_REAL, &itv, NULL);
|
|
}
|
|
|
|
|
|
static void
|
|
progressmeter(int flag)
|
|
{
|
|
static struct timeval lastupdate;
|
|
static off_t lastsize, totalsize;
|
|
|
|
struct timeval now, td, tvwait;
|
|
off_t abbrevsize;
|
|
int elapsed, ratio, barlength, i;
|
|
char buf[256];
|
|
|
|
if (flag == -1) { /* first call to progressmeter */
|
|
gettimeofday(&start, (struct timezone *) 0);
|
|
lastupdate = start;
|
|
lastsize = 0;
|
|
totalsize = content_len + beg_range; /* as content_len changes.. */
|
|
}
|
|
|
|
gettimeofday(&now, (struct timezone *) 0);
|
|
ratio = 100;
|
|
if (totalsize != 0 && !chunked) {
|
|
/* long long helps to have working ETA even if !LFS */
|
|
ratio = (int) (100 * (unsigned long long)(transferred+beg_range) / totalsize);
|
|
ratio = MIN(ratio, 100);
|
|
}
|
|
|
|
fprintf(stderr, "\r%-20.20s%4d%% ", curfile, ratio);
|
|
|
|
barlength = getttywidth() - 51;
|
|
if (barlength > 0 && barlength < sizeof(buf)) {
|
|
i = barlength * ratio / 100;
|
|
memset(buf, '*', i);
|
|
memset(buf + i, ' ', barlength - i);
|
|
buf[barlength] = '\0';
|
|
fprintf(stderr, "|%s|", buf);
|
|
}
|
|
i = 0;
|
|
abbrevsize = transferred + beg_range;
|
|
while (abbrevsize >= 100000) {
|
|
i++;
|
|
abbrevsize >>= 10;
|
|
}
|
|
/* see http://en.wikipedia.org/wiki/Tera */
|
|
fprintf(stderr, "%6d %c%c ", (int)abbrevsize, " KMGTPEZY"[i], i?'B':' ');
|
|
|
|
timersub(&now, &lastupdate, &tvwait);
|
|
if (transferred > lastsize) {
|
|
lastupdate = now;
|
|
lastsize = transferred;
|
|
if (tvwait.tv_sec >= STALLTIME)
|
|
timeradd(&start, &tvwait, &start);
|
|
tvwait.tv_sec = 0;
|
|
}
|
|
timersub(&now, &start, &td);
|
|
elapsed = td.tv_sec;
|
|
|
|
if (tvwait.tv_sec >= STALLTIME) {
|
|
fprintf(stderr, " - stalled -");
|
|
} else {
|
|
off_t to_download = totalsize - beg_range;
|
|
if (transferred <= 0 || elapsed <= 0 || transferred > to_download || chunked) {
|
|
fprintf(stderr, "--:--:-- ETA");
|
|
} else {
|
|
/* to_download / (transferred/elapsed) - elapsed: */
|
|
int eta = (int) ((unsigned long long)to_download*elapsed/transferred - elapsed);
|
|
/* (long long helps to have working ETA even if !LFS) */
|
|
i = eta % 3600;
|
|
fprintf(stderr, "%02d:%02d:%02d ETA", eta / 3600, i / 60, i % 60);
|
|
}
|
|
}
|
|
|
|
if (flag == -1) { /* first call to progressmeter */
|
|
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) { /* last call to progressmeter */
|
|
alarmtimer(0);
|
|
transferred = 0;
|
|
putc('\n', stderr);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Original copyright notice which applies to the CONFIG_FEATURE_WGET_STATUSBAR stuff,
|
|
* much of which was blatantly 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 1.75 2004/10/08 08:27:40 andersen Exp $
|
|
*/
|