| /* 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(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 content_len; /* Content-length of the file */ |
| static off_t beg_range; /* Range at which continue begins */ |
| static off_t transferred; /* Number of bytes transferred so far */ |
| static int chunked; /* 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 */ |
| 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; |
| } |
| |
| #ifdef CONFIG_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 |
| |
| #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 |
| #define WGET_OPT_USER_AGENT 128 |
| |
| #if ENABLE_FEATURE_WGET_LONG_OPTIONS |
| static const struct option wget_long_options[] = { |
| { "continue", 0, NULL, 'c' }, |
| { "quiet", 0, NULL, 'q' }, |
| { "passive-ftp", 0, NULL, 139 }, /* FIXME: what is this - 139?? */ |
| { "output-document", 1, NULL, 'O' }, |
| { "header", 1, NULL, 131 }, |
| { "directory-prefix",1, NULL, 'P' }, |
| { "proxy", 1, NULL, 'Y' }, |
| { "user-agent", 1, NULL, 'U' }, |
| { 0, 0, 0, 0 } |
| }; |
| #endif |
| |
| int wget_main(int argc, char **argv) |
| { |
| int n, try=5, status; |
| unsigned opt; |
| int port; |
| char *proxy = 0; |
| char *dir_prefix=NULL; |
| char *s, buf[512]; |
| 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; |
| |
| /* 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. |
| */ |
| opt_complementary = "-1:\203::"; |
| #if ENABLE_FEATURE_WGET_LONG_OPTIONS |
| applet_long_options = wget_long_options; |
| #endif |
| opt = getopt32(argc, argv, "cq\213O:\203:P:Y:U:", |
| &fname_out, &headers_llist, |
| &dir_prefix, &proxy_flag, &user_agent); |
| 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; |
| } |
| } |
| |
| 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 (*target.path && target.path[strlen(target.path)-1] != '/') { |
| fname_out = |
| #ifdef CONFIG_FEATURE_WGET_STATUSBAR |
| curfile = |
| #endif |
| bb_get_last_path_component(target.path); |
| } |
| if (!fname_out || !fname_out[0]) { |
| 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 ((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 (!strcmp(fname_out, "-")) { |
| output_fd = 1; |
| opt |= WGET_OPT_QUIET; |
| opt &= ~WGET_OPT_CONTINUE; |
| } else if (opt & WGET_OPT_CONTINUE) { |
| output_fd = open(fname_out, O_WRONLY); |
| if (output_fd >= 0) { |
| beg_range = lseek(output_fd, 0, SEEK_END); |
| if (beg_range == (off_t)-1) |
| bb_perror_msg_and_die("lseek"); |
| } |
| /* 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... */ |
| bb_lookup_host(&s_in, server.host); |
| s_in.sin_port = server.port; |
| if (!(opt & WGET_OPT_QUIET)) { |
| printf("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) |
| bb_error_msg_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: %s\r\n", target.host, |
| user_agent); |
| |
| #ifdef CONFIG_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"-\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) |
| bb_error_msg_and_die("no response from server"); |
| |
| s = buf; |
| while (*s != '\0' && !isspace(*s)) ++s; |
| while (isspace(*s)) ++s; |
| switch (status = xatoi(s)) { |
| 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: |
| chomp(buf); |
| bb_error_msg_and_die("server returned error %s: %s", s, buf); |
| } |
| |
| /* |
| * Retrieve HTTP headers. |
| */ |
| while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) { |
| if (strcasecmp(buf, "content-length") == 0) { |
| if (SAFE_STRTOOFF(s, &content_len) || 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) { |
| chunked = got_clen = 1; |
| } else { |
| bb_error_msg_and_die("server wants to do %s transfer encoding", s); |
| } |
| } |
| 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; |
| } |
| 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 = xstrdup("anonymous:busybox@"); |
| |
| sfp = open_socket(&s_in); |
| 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) { |
| if (SAFE_STRTOOFF(buf+4, &content_len) || 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) |
| bb_error_msg_and_die("PASV: %s", buf+4); |
| s = strrchr(buf, ','); |
| *s = 0; |
| port = xatol_range(s+1, 0, 255); |
| s = strrchr(buf, ','); |
| port += xatol_range(s+1, 0, 255) * 256; |
| s_in.sin_port = htons(port); |
| dfp = open_socket(&s_in); |
| |
| if (beg_range) { |
| sprintf(buf, "REST "OFF_FMT, 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("RETR: %s", buf+4); |
| } |
| |
| |
| /* |
| * Retrieve file |
| */ |
| if (chunked) { |
| fgets(buf, sizeof(buf), dfp); |
| content_len = STRTOOFF(buf, (char **) NULL, 16); |
| /* FIXME: error check?? */ |
| } |
| |
| /* Do it before progressmeter (want to have nice error message) */ |
| if (output_fd < 0) |
| output_fd = xopen3(fname_out, |
| O_WRONLY|O_CREAT|O_EXCL|O_TRUNC, 0666); |
| |
| 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); |
| } |
| #ifdef CONFIG_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, (char **) 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, *cp, *sp, *up, *pp; |
| |
| /* 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; |
| } 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; |
| } |
| |
| 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(xatou16(cp)); |
| } |
| } |
| |
| |
| static 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; |
| } |
| |
| |
| 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) |
| { |
| 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 xatoi(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 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 */ |
| (void) gettimeofday(&start, (struct timezone *) 0); |
| lastupdate = start; |
| lastsize = 0; |
| totalsize = content_len + beg_range; /* as content_len changes.. */ |
| } |
| |
| (void) gettimeofday(&now, (struct timezone *) 0); |
| ratio = 100; |
| if (totalsize != 0 && !chunked) { |
| ratio = (int) (100 * (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) (to_download*elapsed/transferred - elapsed); |
| 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 $ |
| */ |