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wget: make progress bar and ETA work correctly with -c
This commit is contained in:
Denis Vlasenko
parent
aecabffb8b
commit
f8aa109a9f
@ -43,16 +43,16 @@ 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 FILEOFF_TYPE filesize; /* content-length of the file */
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static FILEOFF_TYPE content_len; /* Content-length of the file */
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static FILEOFF_TYPE beg_range; /* Range at which continue begins */
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static FILEOFF_TYPE transferred; /* Number of bytes transferred so far */
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static int chunked; /* chunked transfer encoding */
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#ifdef CONFIG_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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static FILEOFF_TYPE transferred; /* Number of bytes transferred so far. */
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/* For progressmeter() -- number of seconds before xfer considered "stalled" */
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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
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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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@ -139,7 +139,6 @@ int wget_main(int argc, char **argv)
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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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FILEOFF_TYPE beg_range = 0; /* range at which continue begins */
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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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@ -232,7 +231,7 @@ int wget_main(int argc, char **argv)
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if (output_fd >= 0) {
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beg_range = LSEEK(output_fd, 0, SEEK_END);
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if (beg_range == (FILEOFF_TYPE)-1)
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bb_perror_msg_and_die("lseek64");
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bb_perror_msg_and_die("lseek");
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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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@ -337,7 +336,7 @@ read_response:
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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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if (SAFE_STRTOOFF(s, &filesize) || filesize < 0) {
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if (SAFE_STRTOOFF(s, &content_len) || 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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@ -405,7 +404,7 @@ read_response:
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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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if (SAFE_STRTOOFF(buf+4, &filesize) || filesize < 0) {
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if (SAFE_STRTOOFF(buf+4, &content_len) || 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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@ -427,7 +426,7 @@ read_response:
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if (beg_range) {
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sprintf(buf, "REST "FILEOFF_FMT, beg_range);
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if (ftpcmd(buf, NULL, sfp, buf) == 350)
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filesize -= beg_range;
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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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@ -440,23 +439,26 @@ read_response:
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*/
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if (chunked) {
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fgets(buf, sizeof(buf), dfp);
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filesize = STRTOOFF(buf, (char **) NULL, 16);
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content_len = STRTOOFF(buf, (char **) NULL, 16);
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/* FIXME: error check?? */
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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 = xopen3(fname_out,
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O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_LARGEFILE, 0666);
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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 (filesize > 0 || !got_clen) {
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while (content_len > 0 || !got_clen) {
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unsigned rdsz = sizeof(buf);
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if (filesize < sizeof(buf) && (chunked || got_clen))
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rdsz = (unsigned)filesize;
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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 (output_fd < 0)
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output_fd = xopen3(fname_out, O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_LARGEFILE, 0666);
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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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@ -464,16 +466,16 @@ read_response:
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transferred += n;
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#endif
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if (got_clen) {
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filesize -= n;
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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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filesize = STRTOOFF(buf, (char **) NULL, 16);
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content_len = STRTOOFF(buf, (char **) NULL, 16);
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/* FIXME: error check? */
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if (filesize == 0) {
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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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@ -636,10 +638,7 @@ static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
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#ifdef CONFIG_FEATURE_WGET_STATUSBAR
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/* Stuff below is from BSD rcp util.c, as added to openshh.
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* Original copyright notice is retained at the end of this file.
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*
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*/
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static int
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getttywidth(void)
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{
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@ -679,17 +678,17 @@ progressmeter(int flag)
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int elapsed, ratio, barlength, i;
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char buf[256];
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if (flag == -1) {
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if (flag == -1) { /* first call to progressmeter */
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(void) gettimeofday(&start, (struct timezone *) 0);
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lastupdate = start;
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lastsize = 0;
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totalsize = filesize; /* as filesize changes.. */
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totalsize = content_len + beg_range; /* as content_len changes.. */
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}
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(void) gettimeofday(&now, (struct timezone *) 0);
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ratio = 100;
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if (totalsize != 0 && !chunked) {
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ratio = (int) (100 * transferred / totalsize);
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ratio = (int) (100 * (transferred+beg_range) / totalsize);
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ratio = MIN(ratio, 100);
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}
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@ -704,7 +703,7 @@ progressmeter(int flag)
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fprintf(stderr, "|%s|", buf);
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}
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i = 0;
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abbrevsize = transferred;
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abbrevsize = transferred + beg_range;
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while (abbrevsize >= 100000) {
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i++;
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abbrevsize >>= 10;
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@ -725,23 +724,26 @@ progressmeter(int flag)
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if (tvwait.tv_sec >= STALLTIME) {
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fprintf(stderr, " - stalled -");
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} else if (transferred <= 0 || elapsed <= 0 || transferred > totalsize || chunked) {
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} else {
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FILEOFF_TYPE to_download = totalsize - beg_range;
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if (transferred <= 0 || elapsed <= 0 || transferred > to_download || chunked) {
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fprintf(stderr, "--:--:-- ETA");
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} else {
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/* totalsize / (transferred/elapsed) - elapsed: */
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int eta = (int) (totalsize*elapsed/transferred - elapsed);
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/* to_download / (transferred/elapsed) - elapsed: */
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int eta = (int) (to_download*elapsed/transferred - elapsed);
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i = eta % 3600;
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fprintf(stderr, "%02d:%02d:%02d ETA", eta / 3600, i / 60, i % 60);
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}
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}
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if (flag == -1) {
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if (flag == -1) { /* first call to progressmeter */
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struct sigaction sa;
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sa.sa_handler = updateprogressmeter;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = SA_RESTART;
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sigaction(SIGALRM, &sa, NULL);
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alarmtimer(1);
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} else if (flag == 1) {
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} else if (flag == 1) { /* last call to progressmeter */
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alarmtimer(0);
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transferred = 0;
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putc('\n', stderr);
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