wget: reduce likelihood of ETA overflow (especially with !LFS)

1 files changed, 19 insertions, 17 deletions

diff --git a/networking/wget.c b/networking/wget.c
index a4c6289cb..69cabfc7f 100644
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -31,11 +31,11 @@ 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 */
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+#if ENABLE_FEATURE_WGET_STATUSBAR
 static off_t transferred;        /* Number of bytes transferred so far */
 #endif
 static int chunked;                     /* chunked transfer encoding */
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+#if ENABLE_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 */
@@ -75,7 +75,7 @@ static char *safe_fgets(char *s, int size, FILE *stream)
         return ret;
 }
 
-#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
+#if ENABLE_FEATURE_WGET_AUTHENTICATION
 /*
  *  Base64-encode character string and return the string.
  */
@@ -191,21 +191,21 @@ int wget_main(int argc, char **argv)
                 // 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
+#if ENABLE_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
+#if ENABLE_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
+#if ENABLE_FEATURE_WGET_STATUSBAR
         } else {
                 curfile = bb_get_last_path_component(fname_out);
 #endif
@@ -260,7 +260,7 @@ int wget_main(int argc, char **argv)
                          */
                         if (use_proxy) {
                                 const char *format = "GET %stp://%s:%d/%s HTTP/1.1\r\n";
-#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
+#if ENABLE_FEATURE_WGET_IP6_LITERAL
                                 if (strchr(target.host, ':'))
                                         format = "GET %stp://[%s]:%d/%s HTTP/1.1\r\n";
 #endif
@@ -274,7 +274,7 @@ int wget_main(int argc, char **argv)
                         fprintf(sfp, "Host: %s\r\nUser-Agent: %s\r\n", target.host,
                                 user_agent);
 
-#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
+#if ENABLE_FEATURE_WGET_AUTHENTICATION
                         if (target.user) {
                                 fprintf(sfp, "Authorization: Basic %s\r\n",
                                         base64enc((unsigned char*)target.user, buf, sizeof(buf)));
@@ -466,7 +466,7 @@ int wget_main(int argc, char **argv)
                         if (full_write(output_fd, buf, n) != n) {
                                 bb_perror_msg_and_die(bb_msg_write_error);
                         }
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+#if ENABLE_FEATURE_WGET_STATUSBAR
                         transferred += n;
 #endif
                         if (got_clen) {
@@ -559,7 +559,7 @@ static void parse_url(char *src_url, struct host_info *h)
 
         pp = h->host;
 
-#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
+#if ENABLE_FEATURE_WGET_IP6_LITERAL
         if (h->host[0] == '[') {
                 char *ep;
 
@@ -670,14 +670,14 @@ static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
         return result;
 }
 
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+#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=0;
+        int width;
         get_terminal_width_height(0, &width, NULL);
         return width;
 }
@@ -714,16 +714,17 @@ progressmeter(int flag)
         char buf[256];
 
         if (flag == -1) { /* first call to progressmeter */
-                (void) gettimeofday(&start, (struct timezone *) 0);
+                gettimeofday(&start, (struct timezone *) 0);
                 lastupdate = start;
                 lastsize = 0;
                 totalsize = content_len + beg_range; /* as content_len changes.. */
         }
 
-        (void) gettimeofday(&now, (struct timezone *) 0);
+        gettimeofday(&now, (struct timezone *) 0);
         ratio = 100;
         if (totalsize != 0 && !chunked) {
-                ratio = (int) (100 * (transferred+beg_range) / totalsize);
+                /* long long helps to have working ETA even if !LFS */
+                ratio = (int) (100 * (unsigned long long)(transferred+beg_range) / totalsize);
                 ratio = MIN(ratio, 100);
         }
 
@@ -743,7 +744,7 @@ progressmeter(int flag)
                 i++;
                 abbrevsize >>= 10;
         }
-        /* See http://en.wikipedia.org/wiki/Tera */
+        /* see http://en.wikipedia.org/wiki/Tera */
         fprintf(stderr, "%6d %c%c ", (int)abbrevsize, " KMGTPEZY"[i], i?'B':' ');
 
         timersub(&now, &lastupdate, &tvwait);
@@ -765,7 +766,8 @@ progressmeter(int flag)
                         fprintf(stderr, "--:--:-- ETA");
                 } else {
                         /* to_download / (transferred/elapsed) - elapsed: */
-                        int eta = (int) (to_download*elapsed/transferred - 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);
                 }