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wget: make progress bar and ETA work correctly with -c

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This commit is contained in:
Denis Vlasenko 2006-10-01 10:58:54 +00:00
parent aecabffb8b
commit f8aa109a9f
1 changed files with 37 additions and 35 deletions
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66
networking/wget.c
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@ -43,16 +43,16 @@ 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 FILEOFF_TYPE filesize; /* content-length of the file */
static FILEOFF_TYPE content_len; /* Content-length of the file */
static FILEOFF_TYPE beg_range; /* Range at which continue begins */
static FILEOFF_TYPE 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. */
static FILEOFF_TYPE transferred; /* Number of bytes transferred so far. */
/* For progressmeter() -- number of seconds before xfer considered "stalled" */
static char *curfile; /* Name of current file being transferred */
static struct timeval start; /* Time a transfer started */
enum {
STALLTIME = 5
STALLTIME = 5 /* Seconds when xfer considered "stalled" */
};
#else
static void progressmeter(int flag) {}
@ -139,7 +139,6 @@ int wget_main(int argc, char **argv)
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) */
FILEOFF_TYPE beg_range = 0; /* range at which continue begins */
int got_clen = 0; /* got content-length: from server */
int output_fd = -1;
int use_proxy = 1; /* Use proxies if env vars are set */
@ -232,7 +231,7 @@ int wget_main(int argc, char **argv)
if (output_fd >= 0) {
beg_range = LSEEK(output_fd, 0, SEEK_END);
if (beg_range == (FILEOFF_TYPE)-1)
bb_perror_msg_and_die("lseek64");
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 */
@ -337,7 +336,7 @@ read_response:
*/
while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
if (strcasecmp(buf, "content-length") == 0) {
if (SAFE_STRTOOFF(s, &filesize) || filesize < 0) {
if (SAFE_STRTOOFF(s, &content_len) || content_len < 0) {
bb_error_msg_and_die("content-length %s is garbage", s);
}
got_clen = 1;
@ -405,7 +404,7 @@ read_response:
* Querying file size
*/
if (ftpcmd("SIZE ", target.path, sfp, buf) == 213) {
if (SAFE_STRTOOFF(buf+4, &filesize) || filesize < 0) {
if (SAFE_STRTOOFF(buf+4, &content_len) || content_len < 0) {
bb_error_msg_and_die("SIZE value is garbage");
}
got_clen = 1;
@ -427,7 +426,7 @@ read_response:
if (beg_range) {
sprintf(buf, "REST "FILEOFF_FMT, beg_range);
if (ftpcmd(buf, NULL, sfp, buf) == 350)
filesize -= beg_range;
content_len -= beg_range;
}
if (ftpcmd("RETR ", target.path, sfp, buf) > 150)
@ -440,23 +439,26 @@ read_response:
*/
if (chunked) {
fgets(buf, sizeof(buf), dfp);
filesize = STRTOOFF(buf, (char **) NULL, 16);
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|O_LARGEFILE, 0666);
if (!(opt & WGET_OPT_QUIET))
progressmeter(-1);
do {
while (filesize > 0 || !got_clen) {
while (content_len > 0 || !got_clen) {
unsigned rdsz = sizeof(buf);
if (filesize < sizeof(buf) && (chunked || got_clen))
rdsz = (unsigned)filesize;
if (content_len < sizeof(buf) && (chunked || got_clen))
rdsz = (unsigned)content_len;
n = safe_fread(buf, 1, rdsz, dfp);
if (n <= 0)
break;
if (output_fd < 0)
output_fd = xopen3(fname_out, O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_LARGEFILE, 0666);
if (full_write(output_fd, buf, n) != n) {
bb_perror_msg_and_die(bb_msg_write_error);
}
@ -464,16 +466,16 @@ read_response:
transferred += n;
#endif
if (got_clen) {
filesize -= n;
content_len -= n;
}
}
if (chunked) {
safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
safe_fgets(buf, sizeof(buf), dfp);
filesize = STRTOOFF(buf, (char **) NULL, 16);
content_len = STRTOOFF(buf, (char **) NULL, 16);
/* FIXME: error check? */
if (filesize == 0) {
if (content_len == 0) {
chunked = 0; /* all done! */
}
}
@ -636,10 +638,7 @@ static int ftpcmd(char *s1, char *s2, FILE *fp, char *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)
{
@ -679,17 +678,17 @@ progressmeter(int flag)
int elapsed, ratio, barlength, i;
char buf[256];
if (flag == -1) {
if (flag == -1) { /* first call to progressmeter */
(void) gettimeofday(&start, (struct timezone *) 0);
lastupdate = start;
lastsize = 0;
totalsize = filesize; /* as filesize changes.. */
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 / totalsize);
ratio = (int) (100 * (transferred+beg_range) / totalsize);
ratio = MIN(ratio, 100);
}
@ -704,7 +703,7 @@ progressmeter(int flag)
fprintf(stderr, "|%s|", buf);
}
i = 0;
abbrevsize = transferred;
abbrevsize = transferred + beg_range;
while (abbrevsize >= 100000) {
i++;
abbrevsize >>= 10;
@ -725,23 +724,26 @@ progressmeter(int flag)
if (tvwait.tv_sec >= STALLTIME) {
fprintf(stderr, " - stalled -");
} else if (transferred <= 0 || elapsed <= 0 || transferred > totalsize || chunked) {
} else {
FILEOFF_TYPE to_download = totalsize - beg_range;
if (transferred <= 0 || elapsed <= 0 || transferred > to_download || chunked) {
fprintf(stderr, "--:--:-- ETA");
} else {
/* totalsize / (transferred/elapsed) - elapsed: */
int eta = (int) (totalsize*elapsed/transferred - elapsed);
/* 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) {
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) {
} else if (flag == 1) { /* last call to progressmeter */
alarmtimer(0);
transferred = 0;
putc('\n', stderr);