wget: strip trailing whitespace from e.g. "Content-length: 120 "

function                                             old     new   delta
wget_main                                           2395    2427     +32

Signed-off-by: Matthijs van de Water <matthijs.van.de.water@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/networking/wget.c b/networking/wget.c
index 26b62cc58..b8cd54964 100644
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -880,7 +880,14 @@ However, in real world it was observed that some web servers
                  */
                 while ((str = gethdr(buf, sizeof(buf), sfp /*, &n*/)) != NULL) {
                         /* gethdr converted "FOO:" string to lowercase */
-                        smalluint key = index_in_strings(keywords, buf) + 1;
+                        smalluint key;
+                        /* strip trailing whitespace */
+                        char *s = strchrnul(str, '\0') - 1;
+                        while (s >= str && (*s == ' ' || *s == '\t')) {
+                                *s = '\0';
+                                s--;
+                        }
+                        key = index_in_strings(keywords, buf) + 1;
                         if (key == KEY_content_length) {
                                 content_len = BB_STRTOOFF(str, NULL, 10);
                                 if (errno || content_len < 0) {