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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2013-07-01 15:01:50 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2013-07-01 15:05:09 +0200 |
| commit | ea267d518ff55517e174b9e8514fc521e4a3b41e (patch) | |
| tree | 4147db5082f88ee14341de5df48fec5cb7fd513f /networking/wget.c | |
| parent | 1bf560e9c374b073757509b334eb099c59f64191 (diff) | |
| download | busybox-ea267d518ff55517e174b9e8514fc521e4a3b41e.tar.gz | |
wget: do not abort if "_" is encountered in a HTTP header
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/wget.c')
| -rw-r--r-- | networking/wget.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/networking/wget.c b/networking/wget.c index 4eafebe40..ce2f51411 100644 --- a/networking/wget.c +++ b/networking/wget.c @@ -328,8 +328,16 @@ static char *gethdr(FILE *fp) return NULL; /* convert the header name to lower case */ - for (s = G.wget_buf; isalnum(*s) || *s == '-' || *s == '.'; ++s) { - /* tolower for "A-Z", no-op for "0-9a-z-." */ + for (s = G.wget_buf; isalnum(*s) || *s == '-' || *s == '.' || *s == '_'; ++s) { + /* + * No-op for 20-3f and 60-7f. "0-9a-z-." are in these ranges. + * 40-5f range ("@A-Z[\]^_") maps to 60-7f. + * "A-Z" maps to "a-z". + * "@[\]" can't occur in header names. + * "^_" maps to "~,DEL" (which is wrong). + * "^" was never seen yet, "_" was seen from web.archive.org + * (x-archive-orig-x_commoncrawl_Signature: HEXSTRING). + */ *s |= 0x20; } |