| /* 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(char *host, int port); |
| 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(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 |
| |
| int wget_main(int argc, char **argv) |
| { |
| int n, try=5, status; |
| 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); |
| int which_long_opt = 0, option_index = -1; |
| struct host_info server, target; |
| |
| 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 noproxy = 0; /* Use proxies if env vars are set */ |
| |
| #define LONG_HEADER 1 |
| #define LONG_PASSIVE 2 |
| |
| struct option long_options[] = { |
| { "continue", 0, NULL, 'c' }, |
| { "quiet", 0, NULL, 'q' }, |
| { "output-document", 1, NULL, 'O' }, |
| { "header", 1, &which_long_opt, LONG_HEADER }, |
| { "proxy", 1, NULL, 'Y' }, |
| { "passive-ftp", 0, &which_long_opt, LONG_PASSIVE }, |
| { 0, 0, 0, 0 } |
| }; |
| /* |
| * Crack command line. |
| */ |
| while ((n = getopt_long(argc, argv, "cqO:P:Y:", long_options, &option_index)) != EOF) { |
| switch (n) { |
| case 'c': |
| ++do_continue; |
| break; |
| case 'P': |
| dir_prefix = optarg; |
| break; |
| case 'q': |
| quiet_flag = TRUE; |
| break; |
| case 'O': |
| /* can't set fname_out to NULL if outputting to stdout, because |
| * this gets interpreted as the auto-gen output filename |
| * case below - tausq@debian.org |
| */ |
| fname_out = optarg; |
| break; |
| case 'Y': |
| if (strcmp(optarg, "off") == 0) |
| noproxy=1; |
| break; |
| case 0: |
| switch (which_long_opt) { |
| case LONG_HEADER: { |
| int arglen = strlen(optarg); |
| 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, optarg); |
| extra_headers_ptr += arglen; |
| extra_headers_left -= ( arglen + 2 ); |
| *extra_headers_ptr++ = '\r'; |
| *extra_headers_ptr++ = '\n'; |
| *(extra_headers_ptr + 1) = 0; |
| break; |
| } |
| case LONG_PASSIVE: |
| // ignore -- we always use passive mode |
| break; |
| } |
| break; |
| default: |
| bb_show_usage(); |
| } |
| } |
| |
| 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 (!noproxy) { |
| proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy"); |
| if (proxy) |
| parse_url(bb_xstrdup(proxy), &server); |
| } |
| |
| /* 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; |
| } |
| |
| if (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(server.host, server.port); |
| |
| /* |
| * Send HTTP request. |
| */ |
| if (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, |
| 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 (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) { |
| filesize = atol(s); |
| 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 (!proxy) { |
| server.host = target.host; |
| server.port = target.port; |
| } |
| } |
| } |
| } |
| } while(status >= 300); |
| |
| dfp = sfp; |
| } |
| else |
| { |
| /* |
| * FTP session |
| */ |
| if (! target.user) |
| target.user = bb_xstrdup("anonymous:busybox@"); |
| |
| sfp = open_socket(server.host, server.port); |
| 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) { |
| filesize = atol(buf+4); |
| 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; |
| dfp = open_socket(server.host, port); |
| |
| 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 (!proxy && 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 = 80; |
| h->host = url + 7; |
| h->is_ftp = 0; |
| } else if (strncmp(url, "ftp://", 6) == 0) { |
| h->port = 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 != NULL) { |
| *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 = atoi(cp); |
| } |
| |
| } |
| |
| |
| FILE *open_socket(char *host, int port) |
| { |
| int fd; |
| FILE *fp; |
| char port_str[10]; |
| |
| snprintf(port_str, sizeof(port_str), "%d", port); |
| fd=xconnect(host, port_str); |
| |
| /* |
| * Get the server onto a stdio stream. |
| */ |
| if ((fp = fdopen(fd, "r+")) == 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) |
| { |
| char *p; |
| |
| if (s1) { |
| if (!s2) s2=""; |
| fprintf(fp, "%s%s\r\n", s1, s2); |
| fflush(fp); |
| } |
| |
| do { |
| p = fgets(buf, 510, fp); |
| if (!p) |
| bb_perror_msg_and_die("fgets()"); |
| } 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(fileno(stderr), 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 1.60 2003/09/15 08:33:37 andersen Exp $ |
| */ |
| |
| |
| |
| /* |
| Local Variables: |
| c-file-style: "linux" |
| c-basic-offset: 4 |
| tab-width: 4 |
| End: |
| */ |