107 proxy_read_line(int fd, char *buf, size_t bufsz)  in proxy_read_line()  argument
114 		if (atomicio(read, fd, buf + off, 1) != 1)  in proxy_read_line()
117 		if (buf[off] == '\r')  in proxy_read_line()
119 		if (buf[off] == '\n') {  in proxy_read_line()
120 			buf[off] = '\0';  in proxy_read_line()
157 	char buf[1024];  in socks_connect()  local
189 		buf[0] = SOCKS_V5;  in socks_connect()
190 		buf[1] = 1;  in socks_connect()
191 		buf[2] = SOCKS_NOAUTH;  in socks_connect()
192 		cnt = atomicio(vwrite, proxyfd, buf, 3);  in socks_connect()
196 		cnt = atomicio(read, proxyfd, buf, 2);  in socks_connect()
200 		if ((unsigned char)buf[1] == SOCKS_NOMETHOD)  in socks_connect()
211 			buf[0] = SOCKS_V5;  in socks_connect()
212 			buf[1] = SOCKS_CONNECT;  in socks_connect()
213 			buf[2] = 0;  in socks_connect()
214 			buf[3] = SOCKS_DOMAIN;  in socks_connect()
215 			buf[4] = hlen;  in socks_connect()
216 			(void) memcpy(buf + 5, host, hlen);  in socks_connect()
217 			(void) memcpy(buf + 5 + hlen, &serverport,  in socks_connect()
223 			buf[0] = SOCKS_V5;  in socks_connect()
224 			buf[1] = SOCKS_CONNECT;  in socks_connect()
225 			buf[2] = 0;  in socks_connect()
226 			buf[3] = SOCKS_IPV4;  in socks_connect()
227 			(void) memcpy(buf + 4, &in4->sin_addr,  in socks_connect()
229 			(void) memcpy(buf + 8, &in4->sin_port,  in socks_connect()
236 			buf[0] = SOCKS_V5;  in socks_connect()
237 			buf[1] = SOCKS_CONNECT;  in socks_connect()
238 			buf[2] = 0;  in socks_connect()
239 			buf[3] = SOCKS_IPV6;  in socks_connect()
240 			(void) memcpy(buf + 4, &in6->sin6_addr,  in socks_connect()
242 			(void) memcpy(buf + 20, &in6->sin6_port,  in socks_connect()
251 		cnt = atomicio(vwrite, proxyfd, buf, wlen);  in socks_connect()
260 		cnt = atomicio(read, proxyfd, buf, 10);  in socks_connect()
263 		if (buf[1] != 0)  in socks_connect()
264 			errx(1, "connection failed, SOCKS error %d", buf[1]);  in socks_connect()
271 		buf[0] = SOCKS_V4;  in socks_connect()
272 		buf[1] = SOCKS_CONNECT;	/* connect */  in socks_connect()
273 		(void) memcpy(buf + 2, &in4->sin_port, sizeof (in4->sin_port));  in socks_connect()
274 		(void) memcpy(buf + 4, &in4->sin_addr, sizeof (in4->sin_addr));  in socks_connect()
275 		buf[8] = 0;	/* empty username */  in socks_connect()
278 		cnt = atomicio(vwrite, proxyfd, buf, wlen);  in socks_connect()
286 		cnt = atomicio(read, proxyfd, buf, 8);  in socks_connect()
289 		if (buf[1] != 90)  in socks_connect()
290 			errx(1, "connection failed, SOCKS error %d", buf[1]);  in socks_connect()
300 			r = snprintf(buf, sizeof (buf),  in socks_connect()
304 			r = snprintf(buf, sizeof (buf),  in socks_connect()
308 		if (r == -1 || (size_t)r >= sizeof (buf))  in socks_connect()
310 		r = strlen(buf);  in socks_connect()
312 		cnt = atomicio(vwrite, proxyfd, buf, r);  in socks_connect()
320 			r = snprintf(buf, sizeof (buf), "%s:%s",  in socks_connect()
323 			if (r == -1 || (size_t)r >= sizeof (buf) ||  in socks_connect()
324 			    b64_ntop((unsigned char *)buf, strlen(buf), resp,  in socks_connect()
327 			r = snprintf(buf, sizeof (buf), "Proxy-Authorization: "  in socks_connect()
329 			if (r == -1 || (size_t)r >= sizeof (buf))  in socks_connect()
331 			r = strlen(buf);  in socks_connect()
332 			if ((cnt = atomicio(vwrite, proxyfd, buf, r)) != r)  in socks_connect()
341 		(void) proxy_read_line(proxyfd, buf, sizeof (buf));  in socks_connect()
343 		    strncmp(buf, HTTP_10_407, strlen(HTTP_10_407)) == 0) {  in socks_connect()
350 		} else if (strncmp(buf, HTTP_10_200,  in socks_connect()
351 		    strlen(HTTP_10_200)) != 0 && strncmp(buf, HTTP_11_200,  in socks_connect()
353 			errx(1, "Proxy error: \"%s\"", buf);  in socks_connect()
357 			(void) proxy_read_line(proxyfd, buf, sizeof (buf));  in socks_connect()
358 			if (*buf == '\0')  in socks_connect()
361 		if (*buf != '\0')  in socks_connect()