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List: busybox
Subject: [PATCH 5/5] httpd: Support multiple ETag in If-None-Match
From: Sergey Ponomarev <stokito () gmail ! com>
Date: 2020-07-20 14:08:30
Message-ID: 20200720140830.30989-1-stokito () gmail ! com
[Download RAW message or body]
The If-None-Match header many have multiple ETags https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.26
Even if httpd returns a single ETag clients may want to send few of them.
Since ETags are always quoted the easiest way to check is just to check a substring.
Signed-off-by: Sergey Ponomarev <stokito@gmail.com>
---
networking/httpd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/networking/httpd.c b/networking/httpd.c
index c2f2d803b..67bebb935 100644
--- a/networking/httpd.c
+++ b/networking/httpd.c
@@ -1744,9 +1744,9 @@ static NOINLINE void send_file_and_exit(const char *url, int what)
#if ENABLE_FEATURE_HTTPD_CACHE
real_etag = make_etag();
if (verbose)
- bb_perror_msg("req_etag and real_etag: '%s' '%s'\n", req_etag, real_etag);
+ bb_perror_msg("If-None-Match and real ETag are: '%s' '%s'\n", req_etag, real_etag);
if (req_etag) {
- if (!strcmp(req_etag, real_etag)) {
+ if (strstr(req_etag, real_etag) != NULL) {
// Already 304 so ETag not needed and can be freed
free(real_etag);
real_etag = NULL;
--
2.25.1
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