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socks: deduplicate the code for auth request

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This commit is contained in:
Kamil Dudka 2017-03-08 12:16:01 +01:00
parent 641072b919
commit cd1c9f0807
1 changed files with 10 additions and 9 deletions
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19
lib/socks.c
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@ -375,6 +375,7 @@ CURLcode Curl_SOCKS5(const char *proxy_user,
*/
unsigned char socksreq[600]; /* room for large user/pw (255 max each) */
int idx;
ssize_t actualread;
ssize_t written;
int result;
@ -426,17 +427,17 @@ CURLcode Curl_SOCKS5(const char *proxy_user,
return CURLE_COULDNT_CONNECT;
}
socksreq[0] = 5; /* version */
idx = 0;
socksreq[idx++] = 5; /* version */
idx++; /* reserve for the number of authentication methods */
socksreq[idx++] = 0; /* no authentication */
#if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
socksreq[1] = (char)(proxy_user ? 3 : 2); /* number of methods (below) */
socksreq[2] = 0; /* no authentication */
socksreq[3] = 1; /* GSS-API */
socksreq[4] = 2; /* username/password */
#else
socksreq[1] = (char)(proxy_user ? 2 : 1); /* number of methods (below) */
socksreq[2] = 0; /* no authentication */
socksreq[3] = 2; /* username/password */
socksreq[idx++] = 1; /* GSS-API */
#endif
if(proxy_user)
socksreq[idx++] = 2; /* username/password */
/* write the number of authentication methods */
socksreq[1] = (unsigned char) (idx - 2);
(void)curlx_nonblock(sock, FALSE);