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Bug 1021: initialize version in http_got_header

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gcc-4.3 -O2 was complaining that http_got_header may use uninitialized
version.major and version.minor.  That indeed happened with HTTP/0.9
servers, and the PRE_HTTP_1_1(version) check then had an undefined
result, so http->close could remain 0 even though it should have
become 1; fortunately, it was then set to 1 anyway, because there was
no Content-Length header.  The undefined version was also saved in
http->recv_version, but it appears nothing ever reads that.  So in the
end, the bug did not cause any symptoms at runtime, but the warning
broke the build on gcc-4.3 if ELinks was configured with --enable-debug.
(cherry picked from commit 5c0128d82d4bd9d706ec36cc2e13cd3492ff3181)
This commit is contained in:
Kalle Olavi Niemitalo 2008-07-04 16:42:35 +03:00 committed by Kalle Olavi Niemitalo
parent 19e2b5fd83
commit bced779fdb
1 changed files with 4 additions and 1 deletions
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5
src/protocol/http/http.c
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@ -1423,7 +1423,7 @@ http_got_header(struct socket *socket, struct read_buffer *rb)
#endif
unsigned char *d;
struct uri *uri = conn->proxied_uri; /* Set to the real uri */
struct http_version version;
struct http_version version = { 0, 9 };
enum connection_state state = (conn->state != S_PROC ? S_GETH : S_PROC);
int a, h = 200;
int cf;
@ -1452,6 +1452,9 @@ again:
read_from_socket(conn->socket, rb, state, http_got_header);
return;
}
/* a == -2 from get_header means HTTP/0.9. In that case, skip
* the get_http_code call; @h and @version have already been
* initialized with the right values. */
if (a == -2) a = 0;
if ((a && get_http_code(rb, &h, &version))
|| h == 101) {