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Diffstat (limited to 'i/pc104/initrd/conf/busybox/networking/wget.c')
-rw-r--r--i/pc104/initrd/conf/busybox/networking/wget.c808
1 files changed, 808 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/networking/wget.c b/i/pc104/initrd/conf/busybox/networking/wget.c
new file mode 100644
index 0000000..db22215
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/networking/wget.c
@@ -0,0 +1,808 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * wget - retrieve a file using HTTP or FTP
+ *
+ * Chip Rosenthal Covad Communications <chip@laserlink.net>
+ *
+ */
+
+/* We want libc to give us xxx64 functions also */
+/* http://www.unix.org/version2/whatsnew/lfs20mar.html */
+#define _LARGEFILE64_SOURCE 1
+
+#include "busybox.h"
+#include <getopt.h> /* for struct option */
+
+struct host_info {
+ // May be used if we ever will want to free() all xstrdup()s...
+ /* char *allocated; */
+ 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(len_and_sockaddr *lsa);
+static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
+static int ftpcmd(const char *s1, const char *s2, FILE *fp, char *buf);
+
+/* Globals (can be accessed from signal handlers */
+static off_t content_len; /* Content-length of the file */
+static off_t beg_range; /* Range at which continue begins */
+#if ENABLE_FEATURE_WGET_STATUSBAR
+static off_t transferred; /* Number of bytes transferred so far */
+#endif
+static int chunked; /* chunked transfer encoding */
+#if ENABLE_FEATURE_WGET_STATUSBAR
+static void progressmeter(int flag);
+static const char *curfile; /* Name of current file being transferred */
+static struct timeval start; /* Time a transfer started */
+enum {
+ STALLTIME = 5 /* Seconds when xfer considered "stalled" */
+};
+#else
+static void progressmeter(int flag) {}
+#endif
+
+/* 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;
+}
+
+/* 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;
+}
+
+#if ENABLE_FEATURE_WGET_AUTHENTICATION
+/*
+ * Base64-encode character string and return the string.
+ */
+static char *base64enc(unsigned char *p, char *buf, int len)
+{
+ bb_uuencode(p, buf, len, bb_uuenc_tbl_base64);
+ return buf;
+}
+#endif
+
+int wget_main(int argc, char **argv);
+int wget_main(int argc, char **argv)
+{
+ char buf[512];
+ struct host_info server, target;
+ len_and_sockaddr *lsa;
+ int n, status;
+ int port;
+ int try = 5;
+ unsigned opt;
+ char *s;
+ char *proxy = 0;
+ char *dir_prefix = NULL;
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ char *extra_headers = NULL;
+ llist_t *headers_llist = NULL;
+#endif
+
+ /* server.allocated = target.allocated = 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 got_clen = 0; /* got content-length: from server */
+ int output_fd = -1;
+ int use_proxy = 1; /* Use proxies if env vars are set */
+ const char *proxy_flag = "on"; /* Use proxies if env vars are set */
+ const char *user_agent = "Wget";/* Content of the "User-Agent" header field */
+
+ /*
+ * Crack command line.
+ */
+ enum {
+ WGET_OPT_CONTINUE = 0x1,
+ WGET_OPT_QUIET = 0x2,
+ WGET_OPT_OUTNAME = 0x4,
+ WGET_OPT_PREFIX = 0x8,
+ WGET_OPT_PROXY = 0x10,
+ WGET_OPT_USER_AGENT = 0x20,
+ WGET_OPT_PASSIVE = 0x40,
+ WGET_OPT_HEADER = 0x80,
+ };
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ static const struct option wget_long_options[] = {
+ // name, has_arg, flag, val
+ { "continue", no_argument, NULL, 'c' },
+ { "quiet", no_argument, NULL, 'q' },
+ { "output-document", required_argument, NULL, 'O' },
+ { "directory-prefix", required_argument, NULL, 'P' },
+ { "proxy", required_argument, NULL, 'Y' },
+ { "user-agent", required_argument, NULL, 'U' },
+ { "passive-ftp", no_argument, NULL, 0xff },
+ { "header", required_argument, NULL, 0xfe },
+ { 0, 0, 0, 0 }
+ };
+ applet_long_options = wget_long_options;
+#endif
+ opt_complementary = "-1" USE_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
+ opt = getopt32(argc, argv, "cqO:P:Y:U:",
+ &fname_out, &dir_prefix,
+ &proxy_flag, &user_agent
+ USE_FEATURE_WGET_LONG_OPTIONS(, &headers_llist)
+ );
+ if (strcmp(proxy_flag, "off") == 0) {
+ /* Use the proxy if necessary. */
+ use_proxy = 0;
+ }
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ if (headers_llist) {
+ int size = 1;
+ char *cp;
+ llist_t *ll = headers_llist = llist_rev(headers_llist);
+ while (ll) {
+ size += strlen(ll->data) + 2;
+ ll = ll->link;
+ }
+ extra_headers = cp = xmalloc(size);
+ while (headers_llist) {
+ cp += sprintf(cp, "%s\r\n", headers_llist->data);
+ headers_llist = headers_llist->link;
+ }
+ }
+#endif
+
+ 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(proxy, &server);
+ } else {
+ use_proxy = 0;
+ }
+ }
+
+ /* Guess an output filename */
+ if (!fname_out) {
+ // Dirty hack. Needed because bb_get_last_path_component
+ // will destroy trailing / by storing '\0' in last byte!
+ if (!last_char_is(target.path, '/')) {
+ fname_out = bb_get_last_path_component(target.path);
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ curfile = fname_out;
+#endif
+ }
+ if (!fname_out || !fname_out[0]) {
+ /* bb_get_last_path_component writes
+ * to last '/' only. We don't have one here... */
+ fname_out = (char*)"index.html";
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ curfile = fname_out;
+#endif
+ }
+ if (dir_prefix != NULL)
+ fname_out = concat_path_file(dir_prefix, fname_out);
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ } else {
+ curfile = bb_get_last_path_component(fname_out);
+#endif
+ }
+ /* Impossible?
+ if ((opt & WGET_OPT_CONTINUE) && !fname_out)
+ bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)"); */
+
+ /*
+ * Determine where to start transfer.
+ */
+ if (LONE_DASH(fname_out)) {
+ output_fd = 1;
+ opt &= ~WGET_OPT_CONTINUE;
+ }
+ if (opt & WGET_OPT_CONTINUE) {
+ output_fd = open(fname_out, O_WRONLY);
+ if (output_fd >= 0) {
+ beg_range = xlseek(output_fd, 0, SEEK_END);
+ }
+ /* File doesn't exist. We do not create file here yet.
+ We are not sure it exists on remove side */
+ }
+
+ /* 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... */
+ lsa = xhost2sockaddr(server.host, server.port);
+ if (!(opt & WGET_OPT_QUIET)) {
+ fprintf(stderr, "Connecting to %s (%s)\n", server.host,
+ xmalloc_sockaddr2dotted(&lsa->sa, lsa->len));
+ /* We leak result of xmalloc_sockaddr2dotted */
+ }
+
+ if (use_proxy || !target.is_ftp) {
+ /*
+ * HTTP session
+ */
+ do {
+ got_clen = chunked = 0;
+
+ if (!--try)
+ bb_error_msg_and_die("too many redirections");
+
+ /*
+ * Open socket to http server
+ */
+ if (sfp) fclose(sfp);
+ sfp = open_socket(lsa);
+
+ /*
+ * Send HTTP request.
+ */
+ if (use_proxy) {
+ fprintf(sfp, "GET %stp://%s/%s HTTP/1.1\r\n",
+ target.is_ftp ? "f" : "ht", target.host,
+ target.path);
+ } else {
+ fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
+ }
+
+ fprintf(sfp, "Host: %s\r\nUser-Agent: %s\r\n",
+ target.host, user_agent);
+
+#if ENABLE_FEATURE_WGET_AUTHENTICATION
+ if (target.user) {
+ fprintf(sfp, "Authorization: Basic %s\r\n",
+ base64enc((unsigned char*)target.user, buf, sizeof(buf)));
+ }
+ if (use_proxy && server.user) {
+ fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
+ base64enc((unsigned char*)server.user, buf, sizeof(buf)));
+ }
+#endif
+
+ if (beg_range)
+ fprintf(sfp, "Range: bytes=%"OFF_FMT"d-\r\n", beg_range);
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ if (extra_headers)
+ fputs(extra_headers, sfp);
+#endif
+ 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)
+ bb_error_msg_and_die("no response from server");
+
+ s = buf;
+ while (*s != '\0' && !isspace(*s)) ++s;
+ s = skip_whitespace(s);
+ // FIXME: no error check
+ // xatou wouldn't work: "200 OK"
+ status = atoi(s);
+ switch (status) {
+ case 0:
+ case 100:
+ while (gethdr(buf, sizeof(buf), sfp, &n) != NULL)
+ /* eat all remaining headers */;
+ goto read_response;
+ case 200:
+ break;
+ case 300: /* redirection */
+ case 301:
+ case 302:
+ case 303:
+ break;
+ case 206:
+ if (beg_range)
+ break;
+ /*FALLTHRU*/
+ default:
+ /* Show first line only and kill any ESC tricks */
+ buf[strcspn(buf, "\n\r\x1b")] = '\0';
+ bb_error_msg_and_die("server returned error: %s", buf);
+ }
+
+ /*
+ * Retrieve HTTP headers.
+ */
+ while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
+ if (strcasecmp(buf, "content-length") == 0) {
+ content_len = BB_STRTOOFF(s, NULL, 10);
+ if (errno || content_len < 0) {
+ bb_error_msg_and_die("content-length %s is garbage", s);
+ }
+ got_clen = 1;
+ continue;
+ }
+ if (strcasecmp(buf, "transfer-encoding") == 0) {
+ if (strcasecmp(s, "chunked") != 0)
+ bb_error_msg_and_die("server wants to do %s transfer encoding", s);
+ chunked = got_clen = 1;
+ }
+ if (strcasecmp(buf, "location") == 0) {
+ if (s[0] == '/')
+ /* free(target.allocated); */
+ target.path = /* target.allocated = */ xstrdup(s+1);
+ else {
+ parse_url(s, &target);
+ if (use_proxy == 0) {
+ server.host = target.host;
+ server.port = target.port;
+ }
+ free(lsa);
+ lsa = xhost2sockaddr(server.host, server.port);
+ break;
+ }
+ }
+ }
+ } while (status >= 300);
+
+ dfp = sfp;
+
+ } else {
+
+ /*
+ * FTP session
+ */
+ if (!target.user)
+ target.user = xstrdup("anonymous:busybox@");
+
+ sfp = open_socket(lsa);
+ if (ftpcmd(NULL, NULL, sfp, buf) != 220)
+ bb_error_msg_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:
+ bb_error_msg_and_die("ftp login: %s", buf+4);
+ }
+
+ ftpcmd("TYPE I", NULL, sfp, buf);
+
+ /*
+ * Querying file size
+ */
+ if (ftpcmd("SIZE ", target.path, sfp, buf) == 213) {
+ content_len = BB_STRTOOFF(buf+4, NULL, 10);
+ if (errno || content_len < 0) {
+ bb_error_msg_and_die("SIZE value is garbage");
+ }
+ got_clen = 1;
+ }
+
+ /*
+ * Entering passive mode
+ */
+ if (ftpcmd("PASV", NULL, sfp, buf) != 227) {
+ pasv_error:
+ bb_error_msg_and_die("bad response to %s: %s", "PASV", buf);
+ }
+ // Response is "227 garbageN1,N2,N3,N4,P1,P2[)garbage]
+ // Server's IP is N1.N2.N3.N4 (we ignore it)
+ // Server's port for data connection is P1*256+P2
+ s = strrchr(buf, ')');
+ if (s) s[0] = '\0';
+ s = strrchr(buf, ',');
+ if (!s) goto pasv_error;
+ port = xatou_range(s+1, 0, 255);
+ *s = '\0';
+ s = strrchr(buf, ',');
+ if (!s) goto pasv_error;
+ port += xatou_range(s+1, 0, 255) * 256;
+ set_nport(lsa, htons(port));
+ dfp = open_socket(lsa);
+
+ if (beg_range) {
+ sprintf(buf, "REST %"OFF_FMT"d", beg_range);
+ if (ftpcmd(buf, NULL, sfp, buf) == 350)
+ content_len -= beg_range;
+ }
+
+ if (ftpcmd("RETR ", target.path, sfp, buf) > 150)
+ bb_error_msg_and_die("bad response to RETR: %s", buf);
+ }
+
+
+ /*
+ * Retrieve file
+ */
+ if (chunked) {
+ fgets(buf, sizeof(buf), dfp);
+ content_len = STRTOOFF(buf, NULL, 16);
+ /* FIXME: error check?? */
+ }
+
+ /* Do it before progressmeter (want to have nice error message) */
+ if (output_fd < 0)
+ output_fd = xopen(fname_out,
+ O_WRONLY|O_CREAT|O_EXCL|O_TRUNC);
+
+ if (!(opt & WGET_OPT_QUIET))
+ progressmeter(-1);
+
+ do {
+ while (content_len > 0 || !got_clen) {
+ unsigned rdsz = sizeof(buf);
+ if (content_len < sizeof(buf) && (chunked || got_clen))
+ rdsz = (unsigned)content_len;
+ n = safe_fread(buf, 1, rdsz, dfp);
+ if (n <= 0)
+ break;
+ if (full_write(output_fd, buf, n) != n) {
+ bb_perror_msg_and_die(bb_msg_write_error);
+ }
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ transferred += n;
+#endif
+ if (got_clen) {
+ content_len -= n;
+ }
+ }
+
+ if (chunked) {
+ safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
+ safe_fgets(buf, sizeof(buf), dfp);
+ content_len = STRTOOFF(buf, NULL, 16);
+ /* FIXME: error check? */
+ if (content_len == 0) {
+ chunked = 0; /* all done! */
+ }
+ }
+
+ if (n == 0 && ferror(dfp)) {
+ 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) {
+ /* must be writable because of bb_get_last_path_component() */
+ static char nullstr[] = "";
+ h->path = nullstr;
+ } 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;
+}
+
+
+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(const char *s1, const 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.
+ *
+ */